diff options
Diffstat (limited to 'binutils-2.25/binutils/dwarf.c')
| -rw-r--r-- | binutils-2.25/binutils/dwarf.c | 6855 |
1 files changed, 6855 insertions, 0 deletions
diff --git a/binutils-2.25/binutils/dwarf.c b/binutils-2.25/binutils/dwarf.c new file mode 100644 index 00000000..ae50a65f --- /dev/null +++ b/binutils-2.25/binutils/dwarf.c @@ -0,0 +1,6855 @@ +/* dwarf.c -- display DWARF contents of a BFD binary file + Copyright 2005-2013 Free Software Foundation, Inc. + + This file is part of GNU Binutils. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA + 02110-1301, USA. */ + +#include "sysdep.h" +#include "libiberty.h" +#include "bfd.h" +#include "bfd_stdint.h" +#include "bucomm.h" +#include "elfcomm.h" +#include "elf/common.h" +#include "dwarf2.h" +#include "dwarf.h" +#include "gdb/gdb-index.h" + +#if !HAVE_DECL_STRNLEN +size_t strnlen (const char *, size_t); +#endif + +static const char *regname (unsigned int regno, int row); + +static int have_frame_base; +static int need_base_address; + +static unsigned int last_pointer_size = 0; +static int warned_about_missing_comp_units = FALSE; + +static unsigned int num_debug_info_entries = 0; +static debug_info *debug_information = NULL; +/* Special value for num_debug_info_entries to indicate + that the .debug_info section could not be loaded/parsed. */ +#define DEBUG_INFO_UNAVAILABLE (unsigned int) -1 + +int eh_addr_size; + +int do_debug_info; +int do_debug_abbrevs; +int do_debug_lines; +int do_debug_pubnames; +int do_debug_pubtypes; +int do_debug_aranges; +int do_debug_ranges; +int do_debug_frames; +int do_debug_frames_interp; +int do_debug_macinfo; +int do_debug_str; +int do_debug_loc; +int do_gdb_index; +int do_trace_info; +int do_trace_abbrevs; +int do_trace_aranges; +int do_debug_addr; +int do_debug_cu_index; +int do_wide; + +int dwarf_cutoff_level = -1; +unsigned long dwarf_start_die; + +int dwarf_check = 0; + +/* Collection of CU/TU section sets from .debug_cu_index and .debug_tu_index + sections. For version 1 package files, each set is stored in SHNDX_POOL + as a zero-terminated list of section indexes comprising one set of debug + sections from a .dwo file. */ + +static int cu_tu_indexes_read = 0; +static unsigned int *shndx_pool = NULL; +static unsigned int shndx_pool_size = 0; +static unsigned int shndx_pool_used = 0; + +/* For version 2 package files, each set contains an array of section offsets + and an array of section sizes, giving the offset and size of the + contribution from a CU or TU within one of the debug sections. + When displaying debug info from a package file, we need to use these + tables to locate the corresponding contributions to each section. */ + +struct cu_tu_set +{ + uint64_t signature; + dwarf_vma section_offsets[DW_SECT_MAX]; + size_t section_sizes[DW_SECT_MAX]; +}; + +static int cu_count = 0; +static int tu_count = 0; +static struct cu_tu_set *cu_sets = NULL; +static struct cu_tu_set *tu_sets = NULL; + +static void load_cu_tu_indexes (void *file); + +/* Values for do_debug_lines. */ +#define FLAG_DEBUG_LINES_RAW 1 +#define FLAG_DEBUG_LINES_DECODED 2 + +static int +size_of_encoded_value (int encoding) +{ + switch (encoding & 0x7) + { + default: /* ??? */ + case 0: return eh_addr_size; + case 2: return 2; + case 3: return 4; + case 4: return 8; + } +} + +static dwarf_vma +get_encoded_value (unsigned char *data, + int encoding, + struct dwarf_section *section) +{ + int size = size_of_encoded_value (encoding); + dwarf_vma val; + + if (encoding & DW_EH_PE_signed) + val = byte_get_signed (data, size); + else + val = byte_get (data, size); + + if ((encoding & 0x70) == DW_EH_PE_pcrel) + val += section->address + (data - section->start); + return val; +} + +#if __STDC_VERSION__ >= 199901L || (defined(__GNUC__) && __GNUC__ >= 2) +#ifndef __MINGW32__ +#define DWARF_VMA_FMT "ll" +#define DWARF_VMA_FMT_LONG "%16.16llx" +#else +#define DWARF_VMA_FMT "I64" +#define DWARF_VMA_FMT_LONG "%016I64x" +#endif +#else +#define DWARF_VMA_FMT "l" +#define DWARF_VMA_FMT_LONG "%16.16lx" +#endif + +/* Convert a dwarf vma value into a string. Returns a pointer to a static + buffer containing the converted VALUE. The value is converted according + to the printf formating character FMTCH. If NUM_BYTES is non-zero then + it specifies the maximum number of bytes to be displayed in the converted + value and FMTCH is ignored - hex is always used. */ + +static const char * +dwarf_vmatoa_1 (const char *fmtch, dwarf_vma value, unsigned num_bytes) +{ + /* As dwarf_vmatoa is used more then once in a printf call + for output, we are cycling through an fixed array of pointers + for return address. */ + static int buf_pos = 0; + static struct dwarf_vmatoa_buf + { + char place[64]; + } buf[16]; + char *ret; + + ret = buf[buf_pos++].place; + buf_pos %= ARRAY_SIZE (buf); + + if (num_bytes) + { + /* Printf does not have a way of specifiying a maximum field width for an + integer value, so we print the full value into a buffer and then select + the precision we need. */ + snprintf (ret, sizeof (buf[0].place), DWARF_VMA_FMT_LONG, value); + if (num_bytes > 8) + num_bytes = 8; + return ret + (16 - 2 * num_bytes); + } + else + { + char fmt[32]; + + sprintf (fmt, "%%%s%s", DWARF_VMA_FMT, fmtch); + snprintf (ret, sizeof (buf[0].place), fmt, value); + return ret; + } +} + +static inline const char * +dwarf_vmatoa (const char * fmtch, dwarf_vma value) +{ + return dwarf_vmatoa_1 (fmtch, value, 0); +} + +/* Print a dwarf_vma value (typically an address, offset or length) in + hexadecimal format, followed by a space. The length of the VALUE (and + hence the precision displayed) is determined by the NUM_BYTES parameter. */ + +static void +print_dwarf_vma (dwarf_vma value, unsigned num_bytes) +{ + printf ("%s ", dwarf_vmatoa_1 (NULL, value, num_bytes)); +} + +/* Format a 64-bit value, given as two 32-bit values, in hex. + For reentrancy, this uses a buffer provided by the caller. */ + +static const char * +dwarf_vmatoa64 (dwarf_vma hvalue, dwarf_vma lvalue, char *buf, + unsigned int buf_len) +{ + int len = 0; + + if (hvalue == 0) + snprintf (buf, buf_len, "%" DWARF_VMA_FMT "x", lvalue); + else + { + len = snprintf (buf, buf_len, "%" DWARF_VMA_FMT "x", hvalue); + snprintf (buf + len, buf_len - len, + "%08" DWARF_VMA_FMT "x", lvalue); + } + + return buf; +} + +/* Read in a LEB128 encoded value starting at address DATA. + If SIGN is true, return a signed LEB128 value. + If LENGTH_RETURN is not NULL, return in it the number of bytes read. + No bytes will be read at address END or beyond. */ + +dwarf_vma +read_leb128 (unsigned char *data, + unsigned int *length_return, + bfd_boolean sign, + const unsigned char * const end) +{ + dwarf_vma result = 0; + unsigned int num_read = 0; + unsigned int shift = 0; + unsigned char byte = 0; + + while (data < end) + { + byte = *data++; + num_read++; + + result |= ((dwarf_vma) (byte & 0x7f)) << shift; + + shift += 7; + if ((byte & 0x80) == 0) + break; + } + + if (length_return != NULL) + *length_return = num_read; + + if (sign && (shift < 8 * sizeof (result)) && (byte & 0x40)) + result |= -1L << shift; + + return result; +} + +/* Create a signed version to avoid painful typecasts. */ +static inline dwarf_signed_vma +read_sleb128 (unsigned char * data, + unsigned int * length_return, + const unsigned char * const end) +{ + return (dwarf_signed_vma) read_leb128 (data, length_return, TRUE, end); +} + +static inline dwarf_vma +read_uleb128 (unsigned char * data, + unsigned int * length_return, + const unsigned char * const end) +{ + return read_leb128 (data, length_return, FALSE, end); +} + +#define SAFE_BYTE_GET(VAL, PTR, AMOUNT, END) \ + do \ + { \ + int dummy [sizeof (VAL) < (AMOUNT) ? -1 : 1] ATTRIBUTE_UNUSED ; \ + unsigned int amount = (AMOUNT); \ + if (((PTR) + amount) >= (END)) \ + { \ + if ((PTR) < (END)) \ + amount = (END) - (PTR); \ + else \ + amount = 0; \ + } \ + if (amount) \ + VAL = byte_get ((PTR), amount); \ + else \ + VAL = 0; \ + } \ + while (0) + +#define SAFE_BYTE_GET_AND_INC(VAL, PTR, AMOUNT, END) \ + do \ + { \ + SAFE_BYTE_GET (VAL, PTR, AMOUNT, END); \ + PTR += AMOUNT; \ + } \ + while (0) + +#define SAFE_SIGNED_BYTE_GET(VAL, PTR, AMOUNT, END) \ + do \ + { \ + unsigned int amount = (AMOUNT); \ + if (((PTR) + amount) >= (END)) \ + { \ + if ((PTR) < (END)) \ + amount = (END) - (PTR); \ + else \ + amount = 0; \ + } \ + if (amount) \ + VAL = byte_get_signed ((PTR), amount); \ + else \ + VAL = 0; \ + } \ + while (0) + +#define SAFE_SIGNED_BYTE_GET_AND_INC(VAL, PTR, AMOUNT, END) \ + do \ + { \ + SAFE_SIGNED_BYTE_GET (VAL, PTR, AMOUNT, END); \ + PTR += AMOUNT; \ + } \ + while (0) + +#define SAFE_BYTE_GET64(PTR, HIGH, LOW, END) \ + do \ + { \ + if (((PTR) + 8) <= (END)) \ + { \ + byte_get_64 ((PTR), (HIGH), (LOW)); \ + } \ + else \ + { \ + * (LOW) = * (HIGH) = 0; \ + } \ + } \ + while (0) + +typedef struct State_Machine_Registers +{ + dwarf_vma address; + unsigned int file; + unsigned int line; + unsigned int column; + int is_stmt; + int basic_block; + unsigned char op_index; + unsigned char end_sequence; +/* This variable hold the number of the last entry seen + in the File Table. */ + unsigned int last_file_entry; +} SMR; + +static SMR state_machine_regs; + +static void +reset_state_machine (int is_stmt) +{ + state_machine_regs.address = 0; + state_machine_regs.op_index = 0; + state_machine_regs.file = 1; + state_machine_regs.line = 1; + state_machine_regs.column = 0; + state_machine_regs.is_stmt = is_stmt; + state_machine_regs.basic_block = 0; + state_machine_regs.end_sequence = 0; + state_machine_regs.last_file_entry = 0; +} + +/* Handled an extend line op. + Returns the number of bytes read. */ + +static int +process_extended_line_op (unsigned char * data, + int is_stmt, + unsigned char * end) +{ + unsigned char op_code; + unsigned int bytes_read; + unsigned int len; + unsigned char *name; + unsigned char *orig_data = data; + dwarf_vma adr; + + len = read_uleb128 (data, & bytes_read, end); + data += bytes_read; + + if (len == 0 || data == end) + { + warn (_("badly formed extended line op encountered!\n")); + return bytes_read; + } + + len += bytes_read; + op_code = *data++; + + printf (_(" Extended opcode %d: "), op_code); + + switch (op_code) + { + case DW_LNE_end_sequence: + printf (_("End of Sequence\n\n")); + reset_state_machine (is_stmt); + break; + + case DW_LNE_set_address: + SAFE_BYTE_GET (adr, data, len - bytes_read - 1, end); + printf (_("set Address to 0x%s\n"), dwarf_vmatoa ("x", adr)); + state_machine_regs.address = adr; + state_machine_regs.op_index = 0; + break; + + case DW_LNE_define_file: + printf (_("define new File Table entry\n")); + printf (_(" Entry\tDir\tTime\tSize\tName\n")); + printf (" %d\t", ++state_machine_regs.last_file_entry); + + name = data; + data += strnlen ((char *) data, end - data) + 1; + printf ("%s\t", dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); + data += bytes_read; + printf ("%s\t", dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); + data += bytes_read; + printf ("%s\t", dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); + data += bytes_read; + printf ("%s\n\n", name); + + if (((unsigned int) (data - orig_data) != len) || data == end) + warn (_("DW_LNE_define_file: Bad opcode length\n")); + break; + + case DW_LNE_set_discriminator: + printf (_("set Discriminator to %s\n"), + dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); + break; + + /* HP extensions. */ + case DW_LNE_HP_negate_is_UV_update: + printf ("DW_LNE_HP_negate_is_UV_update\n"); + break; + case DW_LNE_HP_push_context: + printf ("DW_LNE_HP_push_context\n"); + break; + case DW_LNE_HP_pop_context: + printf ("DW_LNE_HP_pop_context\n"); + break; + case DW_LNE_HP_set_file_line_column: + printf ("DW_LNE_HP_set_file_line_column\n"); + break; + case DW_LNE_HP_set_routine_name: + printf ("DW_LNE_HP_set_routine_name\n"); + break; + case DW_LNE_HP_set_sequence: + printf ("DW_LNE_HP_set_sequence\n"); + break; + case DW_LNE_HP_negate_post_semantics: + printf ("DW_LNE_HP_negate_post_semantics\n"); + break; + case DW_LNE_HP_negate_function_exit: + printf ("DW_LNE_HP_negate_function_exit\n"); + break; + case DW_LNE_HP_negate_front_end_logical: + printf ("DW_LNE_HP_negate_front_end_logical\n"); + break; + case DW_LNE_HP_define_proc: + printf ("DW_LNE_HP_define_proc\n"); + break; + case DW_LNE_HP_source_file_correlation: + { + unsigned char *edata = data + len - bytes_read - 1; + + printf ("DW_LNE_HP_source_file_correlation\n"); + + while (data < edata) + { + unsigned int opc; + + opc = read_uleb128 (data, & bytes_read, edata); + data += bytes_read; + + switch (opc) + { + case DW_LNE_HP_SFC_formfeed: + printf (" DW_LNE_HP_SFC_formfeed\n"); + break; + case DW_LNE_HP_SFC_set_listing_line: + printf (" DW_LNE_HP_SFC_set_listing_line (%s)\n", + dwarf_vmatoa ("u", + read_uleb128 (data, & bytes_read, edata))); + data += bytes_read; + break; + case DW_LNE_HP_SFC_associate: + printf (" DW_LNE_HP_SFC_associate "); + printf ("(%s", + dwarf_vmatoa ("u", + read_uleb128 (data, & bytes_read, edata))); + data += bytes_read; + printf (",%s", + dwarf_vmatoa ("u", + read_uleb128 (data, & bytes_read, edata))); + data += bytes_read; + printf (",%s)\n", + dwarf_vmatoa ("u", + read_uleb128 (data, & bytes_read, edata))); + data += bytes_read; + break; + default: + printf (_(" UNKNOWN DW_LNE_HP_SFC opcode (%u)\n"), opc); + data = edata; + break; + } + } + } + break; + + default: + { + unsigned int rlen = len - bytes_read - 1; + + if (op_code >= DW_LNE_lo_user + /* The test against DW_LNW_hi_user is redundant due to + the limited range of the unsigned char data type used + for op_code. */ + /*&& op_code <= DW_LNE_hi_user*/) + printf (_("user defined: ")); + else + printf (_("UNKNOWN: ")); + printf (_("length %d ["), rlen); + for (; rlen; rlen--) + printf (" %02x", *data++); + printf ("]\n"); + } + break; + } + + return len; +} + +static const unsigned char * +fetch_indirect_string (dwarf_vma offset) +{ + struct dwarf_section *section = &debug_displays [str].section; + + if (section->start == NULL) + return (const unsigned char *) _("<no .debug_str section>"); + + /* DWARF sections under Mach-O have non-zero addresses. */ + offset -= section->address; + if (offset > section->size) + { + warn (_("DW_FORM_strp offset too big: %s\n"), + dwarf_vmatoa ("x", offset)); + return (const unsigned char *) _("<offset is too big>"); + } + + return (const unsigned char *) section->start + offset; +} + +static const char * +fetch_indexed_string (dwarf_vma idx, struct cu_tu_set *this_set, + dwarf_vma offset_size, int dwo) +{ + enum dwarf_section_display_enum str_sec_idx = dwo ? str_dwo : str; + enum dwarf_section_display_enum idx_sec_idx = dwo ? str_index_dwo : str_index; + struct dwarf_section *index_section = &debug_displays [idx_sec_idx].section; + struct dwarf_section *str_section = &debug_displays [str_sec_idx].section; + dwarf_vma index_offset = idx * offset_size; + dwarf_vma str_offset; + + if (index_section->start == NULL) + return (dwo ? _("<no .debug_str_offsets.dwo section>") + : _("<no .debug_str_offsets section>")); + + /* DWARF sections under Mach-O have non-zero addresses. */ + index_offset -= index_section->address; + if (this_set != NULL) + index_offset += this_set->section_offsets [DW_SECT_STR_OFFSETS]; + if (index_offset > index_section->size) + { + warn (_("DW_FORM_GNU_str_index offset too big: %s\n"), + dwarf_vmatoa ("x", index_offset)); + return _("<index offset is too big>"); + } + + if (str_section->start == NULL) + return (dwo ? _("<no .debug_str.dwo section>") + : _("<no .debug_str section>")); + + str_offset = byte_get (index_section->start + index_offset, offset_size); + str_offset -= str_section->address; + if (str_offset > str_section->size) + { + warn (_("DW_FORM_GNU_str_index indirect offset too big: %s\n"), + dwarf_vmatoa ("x", str_offset)); + return _("<indirect index offset is too big>"); + } + + return (const char *) str_section->start + str_offset; +} + +static const char * +fetch_indexed_value (dwarf_vma offset, dwarf_vma bytes) +{ + struct dwarf_section *section = &debug_displays [debug_addr].section; + + if (section->start == NULL) + return (_("<no .debug_addr section>")); + + if (offset + bytes > section->size) + { + warn (_("Offset into section %s too big: %s\n"), + section->name, dwarf_vmatoa ("x", offset)); + return "<offset too big>"; + } + + return dwarf_vmatoa ("x", byte_get (section->start + offset, bytes)); +} + + +/* FIXME: There are better and more efficient ways to handle + these structures. For now though, I just want something that + is simple to implement. */ +typedef struct abbrev_attr +{ + unsigned long attribute; + unsigned long form; + struct abbrev_attr *next; +} +abbrev_attr; + +typedef struct abbrev_entry +{ + unsigned long entry; + unsigned long tag; + int children; + struct abbrev_attr *first_attr; + struct abbrev_attr *last_attr; + struct abbrev_entry *next; +} +abbrev_entry; + +static abbrev_entry *first_abbrev = NULL; +static abbrev_entry *last_abbrev = NULL; + +static void +free_abbrevs (void) +{ + abbrev_entry *abbrv; + + for (abbrv = first_abbrev; abbrv;) + { + abbrev_entry *next_abbrev = abbrv->next; + abbrev_attr *attr; + + for (attr = abbrv->first_attr; attr;) + { + abbrev_attr *next_attr = attr->next; + + free (attr); + attr = next_attr; + } + + free (abbrv); + abbrv = next_abbrev; + } + + last_abbrev = first_abbrev = NULL; +} + +static void +add_abbrev (unsigned long number, unsigned long tag, int children) +{ + abbrev_entry *entry; + + entry = (abbrev_entry *) malloc (sizeof (*entry)); + if (entry == NULL) + /* ugg */ + return; + + entry->entry = number; + entry->tag = tag; + entry->children = children; + entry->first_attr = NULL; + entry->last_attr = NULL; + entry->next = NULL; + + if (first_abbrev == NULL) + first_abbrev = entry; + else + last_abbrev->next = entry; + + last_abbrev = entry; +} + +static void +add_abbrev_attr (unsigned long attribute, unsigned long form) +{ + abbrev_attr *attr; + + attr = (abbrev_attr *) malloc (sizeof (*attr)); + if (attr == NULL) + /* ugg */ + return; + + attr->attribute = attribute; + attr->form = form; + attr->next = NULL; + + if (last_abbrev->first_attr == NULL) + last_abbrev->first_attr = attr; + else + last_abbrev->last_attr->next = attr; + + last_abbrev->last_attr = attr; +} + +/* Processes the (partial) contents of a .debug_abbrev section. + Returns NULL if the end of the section was encountered. + Returns the address after the last byte read if the end of + an abbreviation set was found. */ + +static unsigned char * +process_abbrev_section (unsigned char *start, unsigned char *end) +{ + if (first_abbrev != NULL) + return NULL; + + while (start < end) + { + unsigned int bytes_read; + unsigned long entry; + unsigned long tag; + unsigned long attribute; + int children; + + entry = read_uleb128 (start, & bytes_read, end); + start += bytes_read; + + /* A single zero is supposed to end the section according + to the standard. If there's more, then signal that to + the caller. */ + if (start == end) + return NULL; + if (entry == 0) + return start; + + tag = read_uleb128 (start, & bytes_read, end); + start += bytes_read; + if (start == end) + return NULL; + + children = *start++; + + add_abbrev (entry, tag, children); + + do + { + unsigned long form; + + attribute = read_uleb128 (start, & bytes_read, end); + start += bytes_read; + if (start == end) + break; + + form = read_uleb128 (start, & bytes_read, end); + start += bytes_read; + if (start == end) + break; + + add_abbrev_attr (attribute, form); + } + while (attribute != 0); + } + + /* Report the missing single zero which ends the section. */ + error (_(".debug_abbrev section not zero terminated\n")); + + return NULL; +} + +static const char * +get_TAG_name (unsigned long tag) +{ + const char *name = get_DW_TAG_name ((unsigned int)tag); + + if (name == NULL) + { + static char buffer[100]; + + snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %lx"), tag); + return buffer; + } + + return name; +} + +static const char * +get_FORM_name (unsigned long form) +{ + const char *name; + + if (form == 0) + return "DW_FORM value: 0"; + + name = get_DW_FORM_name (form); + if (name == NULL) + { + static char buffer[100]; + + snprintf (buffer, sizeof (buffer), _("Unknown FORM value: %lx"), form); + return buffer; + } + + return name; +} + +static unsigned char * +display_block (unsigned char *data, + dwarf_vma length, + const unsigned char * const end) +{ + dwarf_vma maxlen; + + printf (_(" %s byte block: "), dwarf_vmatoa ("u", length)); + + maxlen = (dwarf_vma) (end - data); + length = length > maxlen ? maxlen : length; + + while (length --) + printf ("%lx ", (unsigned long) byte_get (data++, 1)); + + return data; +} + +static int +decode_location_expression (unsigned char * data, + unsigned int pointer_size, + unsigned int offset_size, + int dwarf_version, + dwarf_vma length, + dwarf_vma cu_offset, + struct dwarf_section * section) +{ + unsigned op; + unsigned int bytes_read; + dwarf_vma uvalue; + dwarf_signed_vma svalue; + unsigned char *end = data + length; + int need_frame_base = 0; + + while (data < end) + { + op = *data++; + + switch (op) + { + case DW_OP_addr: + SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); + printf ("DW_OP_addr: %s", dwarf_vmatoa ("x", uvalue)); + break; + case DW_OP_deref: + printf ("DW_OP_deref"); + break; + case DW_OP_const1u: + SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); + printf ("DW_OP_const1u: %lu", (unsigned long) uvalue); + break; + case DW_OP_const1s: + SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 1, end); + printf ("DW_OP_const1s: %ld", (long) svalue); + break; + case DW_OP_const2u: + SAFE_BYTE_GET_AND_INC (uvalue, data, 2, end); + printf ("DW_OP_const2u: %lu", (unsigned long) uvalue); + break; + case DW_OP_const2s: + SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end); + printf ("DW_OP_const2s: %ld", (long) svalue); + break; + case DW_OP_const4u: + SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); + printf ("DW_OP_const4u: %lu", (unsigned long) uvalue); + break; + case DW_OP_const4s: + SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end); + printf ("DW_OP_const4s: %ld", (long) svalue); + break; + case DW_OP_const8u: + SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); + printf ("DW_OP_const8u: %lu ", (unsigned long) uvalue); + SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); + printf ("%lu", (unsigned long) uvalue); + break; + case DW_OP_const8s: + SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end); + printf ("DW_OP_const8s: %ld ", (long) svalue); + SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end); + printf ("%ld", (long) svalue); + break; + case DW_OP_constu: + printf ("DW_OP_constu: %s", + dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); + data += bytes_read; + break; + case DW_OP_consts: + printf ("DW_OP_consts: %s", + dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end))); + data += bytes_read; + break; + case DW_OP_dup: + printf ("DW_OP_dup"); + break; + case DW_OP_drop: + printf ("DW_OP_drop"); + break; + case DW_OP_over: + printf ("DW_OP_over"); + break; + case DW_OP_pick: + SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); + printf ("DW_OP_pick: %ld", (unsigned long) uvalue); + break; + case DW_OP_swap: + printf ("DW_OP_swap"); + break; + case DW_OP_rot: + printf ("DW_OP_rot"); + break; + case DW_OP_xderef: + printf ("DW_OP_xderef"); + break; + case DW_OP_abs: + printf ("DW_OP_abs"); + break; + case DW_OP_and: + printf ("DW_OP_and"); + break; + case DW_OP_div: + printf ("DW_OP_div"); + break; + case DW_OP_minus: + printf ("DW_OP_minus"); + break; + case DW_OP_mod: + printf ("DW_OP_mod"); + break; + case DW_OP_mul: + printf ("DW_OP_mul"); + break; + case DW_OP_neg: + printf ("DW_OP_neg"); + break; + case DW_OP_not: + printf ("DW_OP_not"); + break; + case DW_OP_or: + printf ("DW_OP_or"); + break; + case DW_OP_plus: + printf ("DW_OP_plus"); + break; + case DW_OP_plus_uconst: + printf ("DW_OP_plus_uconst: %s", + dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); + data += bytes_read; + break; + case DW_OP_shl: + printf ("DW_OP_shl"); + break; + case DW_OP_shr: + printf ("DW_OP_shr"); + break; + case DW_OP_shra: + printf ("DW_OP_shra"); + break; + case DW_OP_xor: + printf ("DW_OP_xor"); + break; + case DW_OP_bra: + SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end); + printf ("DW_OP_bra: %ld", (long) svalue); + break; + case DW_OP_eq: + printf ("DW_OP_eq"); + break; + case DW_OP_ge: + printf ("DW_OP_ge"); + break; + case DW_OP_gt: + printf ("DW_OP_gt"); + break; + case DW_OP_le: + printf ("DW_OP_le"); + break; + case DW_OP_lt: + printf ("DW_OP_lt"); + break; + case DW_OP_ne: + printf ("DW_OP_ne"); + break; + case DW_OP_skip: + SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end); + printf ("DW_OP_skip: %ld", (long) svalue); + break; + + case DW_OP_lit0: + case DW_OP_lit1: + case DW_OP_lit2: + case DW_OP_lit3: + case DW_OP_lit4: + case DW_OP_lit5: + case DW_OP_lit6: + case DW_OP_lit7: + case DW_OP_lit8: + case DW_OP_lit9: + case DW_OP_lit10: + case DW_OP_lit11: + case DW_OP_lit12: + case DW_OP_lit13: + case DW_OP_lit14: + case DW_OP_lit15: + case DW_OP_lit16: + case DW_OP_lit17: + case DW_OP_lit18: + case DW_OP_lit19: + case DW_OP_lit20: + case DW_OP_lit21: + case DW_OP_lit22: + case DW_OP_lit23: + case DW_OP_lit24: + case DW_OP_lit25: + case DW_OP_lit26: + case DW_OP_lit27: + case DW_OP_lit28: + case DW_OP_lit29: + case DW_OP_lit30: + case DW_OP_lit31: + printf ("DW_OP_lit%d", op - DW_OP_lit0); + break; + + case DW_OP_reg0: + case DW_OP_reg1: + case DW_OP_reg2: + case DW_OP_reg3: + case DW_OP_reg4: + case DW_OP_reg5: + case DW_OP_reg6: + case DW_OP_reg7: + case DW_OP_reg8: + case DW_OP_reg9: + case DW_OP_reg10: + case DW_OP_reg11: + case DW_OP_reg12: + case DW_OP_reg13: + case DW_OP_reg14: + case DW_OP_reg15: + case DW_OP_reg16: + case DW_OP_reg17: + case DW_OP_reg18: + case DW_OP_reg19: + case DW_OP_reg20: + case DW_OP_reg21: + case DW_OP_reg22: + case DW_OP_reg23: + case DW_OP_reg24: + case DW_OP_reg25: + case DW_OP_reg26: + case DW_OP_reg27: + case DW_OP_reg28: + case DW_OP_reg29: + case DW_OP_reg30: + case DW_OP_reg31: + printf ("DW_OP_reg%d (%s)", op - DW_OP_reg0, + regname (op - DW_OP_reg0, 1)); + break; + + case DW_OP_breg0: + case DW_OP_breg1: + case DW_OP_breg2: + case DW_OP_breg3: + case DW_OP_breg4: + case DW_OP_breg5: + case DW_OP_breg6: + case DW_OP_breg7: + case DW_OP_breg8: + case DW_OP_breg9: + case DW_OP_breg10: + case DW_OP_breg11: + case DW_OP_breg12: + case DW_OP_breg13: + case DW_OP_breg14: + case DW_OP_breg15: + case DW_OP_breg16: + case DW_OP_breg17: + case DW_OP_breg18: + case DW_OP_breg19: + case DW_OP_breg20: + case DW_OP_breg21: + case DW_OP_breg22: + case DW_OP_breg23: + case DW_OP_breg24: + case DW_OP_breg25: + case DW_OP_breg26: + case DW_OP_breg27: + case DW_OP_breg28: + case DW_OP_breg29: + case DW_OP_breg30: + case DW_OP_breg31: + printf ("DW_OP_breg%d (%s): %s", + op - DW_OP_breg0, + regname (op - DW_OP_breg0, 1), + dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end))); + data += bytes_read; + break; + + case DW_OP_regx: + uvalue = read_uleb128 (data, &bytes_read, end); + data += bytes_read; + printf ("DW_OP_regx: %s (%s)", + dwarf_vmatoa ("u", uvalue), regname (uvalue, 1)); + break; + case DW_OP_fbreg: + need_frame_base = 1; + printf ("DW_OP_fbreg: %s", + dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end))); + data += bytes_read; + break; + case DW_OP_bregx: + uvalue = read_uleb128 (data, &bytes_read, end); + data += bytes_read; + printf ("DW_OP_bregx: %s (%s) %s", + dwarf_vmatoa ("u", uvalue), regname (uvalue, 1), + dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end))); + data += bytes_read; + break; + case DW_OP_piece: + printf ("DW_OP_piece: %s", + dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); + data += bytes_read; + break; + case DW_OP_deref_size: + SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); + printf ("DW_OP_deref_size: %ld", (long) uvalue); + break; + case DW_OP_xderef_size: + SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); + printf ("DW_OP_xderef_size: %ld", (long) uvalue); + break; + case DW_OP_nop: + printf ("DW_OP_nop"); + break; + + /* DWARF 3 extensions. */ + case DW_OP_push_object_address: + printf ("DW_OP_push_object_address"); + break; + case DW_OP_call2: + /* XXX: Strictly speaking for 64-bit DWARF3 files + this ought to be an 8-byte wide computation. */ + SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end); + printf ("DW_OP_call2: <0x%s>", + dwarf_vmatoa ("x", svalue + cu_offset)); + break; + case DW_OP_call4: + /* XXX: Strictly speaking for 64-bit DWARF3 files + this ought to be an 8-byte wide computation. */ + SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end); + printf ("DW_OP_call4: <0x%s>", + dwarf_vmatoa ("x", svalue + cu_offset)); + break; + case DW_OP_call_ref: + /* XXX: Strictly speaking for 64-bit DWARF3 files + this ought to be an 8-byte wide computation. */ + if (dwarf_version == -1) + { + printf (_("(DW_OP_call_ref in frame info)")); + /* No way to tell where the next op is, so just bail. */ + return need_frame_base; + } + if (dwarf_version == 2) + { + SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); + } + else + { + SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end); + } + printf ("DW_OP_call_ref: <0x%s>", dwarf_vmatoa ("x", uvalue)); + break; + case DW_OP_form_tls_address: + printf ("DW_OP_form_tls_address"); + break; + case DW_OP_call_frame_cfa: + printf ("DW_OP_call_frame_cfa"); + break; + case DW_OP_bit_piece: + printf ("DW_OP_bit_piece: "); + printf (_("size: %s "), + dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); + data += bytes_read; + printf (_("offset: %s "), + dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); + data += bytes_read; + break; + + /* DWARF 4 extensions. */ + case DW_OP_stack_value: + printf ("DW_OP_stack_value"); + break; + + case DW_OP_implicit_value: + printf ("DW_OP_implicit_value"); + uvalue = read_uleb128 (data, &bytes_read, end); + data += bytes_read; + display_block (data, uvalue, end); + data += uvalue; + break; + + /* GNU extensions. */ + case DW_OP_GNU_push_tls_address: + printf (_("DW_OP_GNU_push_tls_address or DW_OP_HP_unknown")); + break; + case DW_OP_GNU_uninit: + printf ("DW_OP_GNU_uninit"); + /* FIXME: Is there data associated with this OP ? */ + break; + case DW_OP_GNU_encoded_addr: + { + int encoding; + dwarf_vma addr; + + encoding = *data++; + addr = get_encoded_value (data, encoding, section); + data += size_of_encoded_value (encoding); + + printf ("DW_OP_GNU_encoded_addr: fmt:%02x addr:", encoding); + print_dwarf_vma (addr, pointer_size); + } + break; + case DW_OP_GNU_implicit_pointer: + /* XXX: Strictly speaking for 64-bit DWARF3 files + this ought to be an 8-byte wide computation. */ + if (dwarf_version == -1) + { + printf (_("(DW_OP_GNU_implicit_pointer in frame info)")); + /* No way to tell where the next op is, so just bail. */ + return need_frame_base; + } + if (dwarf_version == 2) + { + SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); + } + else + { + SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end); + } + printf ("DW_OP_GNU_implicit_pointer: <0x%s> %s", + dwarf_vmatoa ("x", uvalue), + dwarf_vmatoa ("d", read_sleb128 (data, + &bytes_read, end))); + data += bytes_read; + break; + case DW_OP_GNU_entry_value: + uvalue = read_uleb128 (data, &bytes_read, end); + data += bytes_read; + printf ("DW_OP_GNU_entry_value: ("); + if (decode_location_expression (data, pointer_size, offset_size, + dwarf_version, uvalue, + cu_offset, section)) + need_frame_base = 1; + putchar (')'); + data += uvalue; + break; + case DW_OP_GNU_const_type: + uvalue = read_uleb128 (data, &bytes_read, end); + data += bytes_read; + printf ("DW_OP_GNU_const_type: <0x%s> ", + dwarf_vmatoa ("x", cu_offset + uvalue)); + SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); + display_block (data, uvalue, end); + data += uvalue; + break; + case DW_OP_GNU_regval_type: + uvalue = read_uleb128 (data, &bytes_read, end); + data += bytes_read; + printf ("DW_OP_GNU_regval_type: %s (%s)", + dwarf_vmatoa ("u", uvalue), regname (uvalue, 1)); + uvalue = read_uleb128 (data, &bytes_read, end); + data += bytes_read; + printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset + uvalue)); + break; + case DW_OP_GNU_deref_type: + SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); + printf ("DW_OP_GNU_deref_type: %ld", (long) uvalue); + uvalue = read_uleb128 (data, &bytes_read, end); + data += bytes_read; + printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset + uvalue)); + break; + case DW_OP_GNU_convert: + uvalue = read_uleb128 (data, &bytes_read, end); + data += bytes_read; + printf ("DW_OP_GNU_convert <0x%s>", + dwarf_vmatoa ("x", uvalue ? cu_offset + uvalue : 0)); + break; + case DW_OP_GNU_reinterpret: + uvalue = read_uleb128 (data, &bytes_read, end); + data += bytes_read; + printf ("DW_OP_GNU_reinterpret <0x%s>", + dwarf_vmatoa ("x", uvalue ? cu_offset + uvalue : 0)); + break; + case DW_OP_GNU_parameter_ref: + SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); + printf ("DW_OP_GNU_parameter_ref: <0x%s>", + dwarf_vmatoa ("x", cu_offset + uvalue)); + break; + case DW_OP_GNU_addr_index: + uvalue = read_uleb128 (data, &bytes_read, end); + data += bytes_read; + printf ("DW_OP_GNU_addr_index <0x%s>", dwarf_vmatoa ("x", uvalue)); + break; + case DW_OP_GNU_const_index: + uvalue = read_uleb128 (data, &bytes_read, end); + data += bytes_read; + printf ("DW_OP_GNU_const_index <0x%s>", dwarf_vmatoa ("x", uvalue)); + break; + + /* HP extensions. */ + case DW_OP_HP_is_value: + printf ("DW_OP_HP_is_value"); + /* FIXME: Is there data associated with this OP ? */ + break; + case DW_OP_HP_fltconst4: + printf ("DW_OP_HP_fltconst4"); + /* FIXME: Is there data associated with this OP ? */ + break; + case DW_OP_HP_fltconst8: + printf ("DW_OP_HP_fltconst8"); + /* FIXME: Is there data associated with this OP ? */ + break; + case DW_OP_HP_mod_range: + printf ("DW_OP_HP_mod_range"); + /* FIXME: Is there data associated with this OP ? */ + break; + case DW_OP_HP_unmod_range: + printf ("DW_OP_HP_unmod_range"); + /* FIXME: Is there data associated with this OP ? */ + break; + case DW_OP_HP_tls: + printf ("DW_OP_HP_tls"); + /* FIXME: Is there data associated with this OP ? */ + break; + + /* PGI (STMicroelectronics) extensions. */ + case DW_OP_PGI_omp_thread_num: + /* Pushes the thread number for the current thread as it would be + returned by the standard OpenMP library function: + omp_get_thread_num(). The "current thread" is the thread for + which the expression is being evaluated. */ + printf ("DW_OP_PGI_omp_thread_num"); + break; + + default: + if (op >= DW_OP_lo_user + && op <= DW_OP_hi_user) + printf (_("(User defined location op)")); + else + printf (_("(Unknown location op)")); + /* No way to tell where the next op is, so just bail. */ + return need_frame_base; + } + + /* Separate the ops. */ + if (data < end) + printf ("; "); + } + + return need_frame_base; +} + +/* Find the CU or TU set corresponding to the given CU_OFFSET. + This is used for DWARF package files. */ + +static struct cu_tu_set * +find_cu_tu_set_v2 (dwarf_vma cu_offset, int do_types) +{ + struct cu_tu_set *p; + unsigned int nsets; + unsigned int dw_sect; + + if (do_types) + { + p = tu_sets; + nsets = tu_count; + dw_sect = DW_SECT_TYPES; + } + else + { + p = cu_sets; + nsets = cu_count; + dw_sect = DW_SECT_INFO; + } + while (nsets > 0) + { + if (p->section_offsets [dw_sect] == cu_offset) + return p; + p++; + nsets--; + } + return NULL; +} + +/* Add INC to HIGH_BITS:LOW_BITS. */ +static void +add64 (dwarf_vma * high_bits, dwarf_vma * low_bits, dwarf_vma inc) +{ + dwarf_vma tmp = * low_bits; + + tmp += inc; + + /* FIXME: There is probably a better way of handling this: + + We need to cope with dwarf_vma being a 32-bit or 64-bit + type. Plus regardless of its size LOW_BITS is meant to + only hold 32-bits, so if there is overflow or wrap around + we must propagate into HIGH_BITS. */ + if (tmp < * low_bits) + { + ++ * high_bits; + } + else if (sizeof (tmp) > 8 + && (tmp >> 31) > 1) + { + ++ * high_bits; + tmp &= 0xFFFFFFFF; + } + + * low_bits = tmp; +} + +static unsigned char * +read_and_display_attr_value (unsigned long attribute, + unsigned long form, + unsigned char * data, + unsigned char * end, + dwarf_vma cu_offset, + dwarf_vma pointer_size, + dwarf_vma offset_size, + int dwarf_version, + debug_info * debug_info_p, + int do_loc, + struct dwarf_section * section, + struct cu_tu_set * this_set) +{ + dwarf_vma uvalue = 0; + unsigned char *block_start = NULL; + unsigned char * orig_data = data; + unsigned int bytes_read; + + if (data == end) + { + warn (_("corrupt attribute\n")); + return data; + } + + switch (form) + { + default: + break; + + case DW_FORM_ref_addr: + if (dwarf_version == 2) + SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); + else if (dwarf_version == 3 || dwarf_version == 4) + SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end); + else + error (_("Internal error: DWARF version is not 2, 3 or 4.\n")); + + break; + + case DW_FORM_addr: + SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); + break; + + case DW_FORM_strp: + case DW_FORM_sec_offset: + case DW_FORM_GNU_ref_alt: + case DW_FORM_GNU_strp_alt: + SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end); + break; + + case DW_FORM_flag_present: + uvalue = 1; + break; + + case DW_FORM_ref1: + case DW_FORM_flag: + case DW_FORM_data1: + SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); + break; + + case DW_FORM_ref2: + case DW_FORM_data2: + SAFE_BYTE_GET_AND_INC (uvalue, data, 2, end); + break; + + case DW_FORM_ref4: + case DW_FORM_data4: + SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); + break; + + case DW_FORM_sdata: + uvalue = read_sleb128 (data, & bytes_read, end); + data += bytes_read; + break; + + case DW_FORM_GNU_str_index: + uvalue = read_uleb128 (data, & bytes_read, end); + data += bytes_read; + break; + + case DW_FORM_ref_udata: + case DW_FORM_udata: + uvalue = read_uleb128 (data, & bytes_read, end); + data += bytes_read; + break; + + case DW_FORM_indirect: + form = read_uleb128 (data, & bytes_read, end); + data += bytes_read; + if (!do_loc) + printf (" %s", get_FORM_name (form)); + return read_and_display_attr_value (attribute, form, data, end, + cu_offset, pointer_size, + offset_size, dwarf_version, + debug_info_p, do_loc, + section, this_set); + case DW_FORM_GNU_addr_index: + uvalue = read_uleb128 (data, & bytes_read, end); + data += bytes_read; + break; + } + + switch (form) + { + case DW_FORM_ref_addr: + if (!do_loc) + printf (" <0x%s>", dwarf_vmatoa ("x",uvalue)); + break; + + case DW_FORM_GNU_ref_alt: + if (!do_loc) + printf (" <alt 0x%s>", dwarf_vmatoa ("x",uvalue)); + break; + + case DW_FORM_ref1: + case DW_FORM_ref2: + case DW_FORM_ref4: + case DW_FORM_ref_udata: + if (!do_loc) + printf (" <0x%s>", dwarf_vmatoa ("x", uvalue + cu_offset)); + break; + + case DW_FORM_data4: + case DW_FORM_addr: + case DW_FORM_sec_offset: + if (!do_loc) + printf (" 0x%s", dwarf_vmatoa ("x", uvalue)); + break; + + case DW_FORM_flag_present: + case DW_FORM_flag: + case DW_FORM_data1: + case DW_FORM_data2: + case DW_FORM_sdata: + case DW_FORM_udata: + if (!do_loc) + printf (" %s", dwarf_vmatoa ("d", uvalue)); + break; + + case DW_FORM_ref8: + case DW_FORM_data8: + if (!do_loc) + { + dwarf_vma high_bits; + dwarf_vma utmp; + char buf[64]; + + SAFE_BYTE_GET64 (data, &high_bits, &uvalue, end); + utmp = uvalue; + if (form == DW_FORM_ref8) + add64 (& high_bits, & utmp, cu_offset); + printf (" 0x%s", + dwarf_vmatoa64 (high_bits, utmp, buf, sizeof (buf))); + } + + if ((do_loc || do_debug_loc || do_debug_ranges) + && num_debug_info_entries == 0) + { + if (sizeof (uvalue) == 8) + SAFE_BYTE_GET (uvalue, data, 8, end); + else + error (_("DW_FORM_data8 is unsupported when sizeof (dwarf_vma) != 8\n")); + } + + data += 8; + break; + + case DW_FORM_string: + if (!do_loc) + printf (" %.*s", (int) (end - data), data); + data += strnlen ((char *) data, end - data) + 1; + break; + + case DW_FORM_block: + case DW_FORM_exprloc: + uvalue = read_uleb128 (data, & bytes_read, end); + block_start = data + bytes_read; + if (do_loc) + data = block_start + uvalue; + else + data = display_block (block_start, uvalue, end); + break; + + case DW_FORM_block1: + SAFE_BYTE_GET (uvalue, data, 1, end); + block_start = data + 1; + if (do_loc) + data = block_start + uvalue; + else + data = display_block (block_start, uvalue, end); + break; + + case DW_FORM_block2: + SAFE_BYTE_GET (uvalue, data, 2, end); + block_start = data + 2; + if (do_loc) + data = block_start + uvalue; + else + data = display_block (block_start, uvalue, end); + break; + + case DW_FORM_block4: + SAFE_BYTE_GET (uvalue, data, 4, end); + block_start = data + 4; + if (do_loc) + data = block_start + uvalue; + else + data = display_block (block_start, uvalue, end); + break; + + case DW_FORM_strp: + if (!do_loc) + printf (_(" (indirect string, offset: 0x%s): %s"), + dwarf_vmatoa ("x", uvalue), + fetch_indirect_string (uvalue)); + break; + + case DW_FORM_GNU_str_index: + if (!do_loc) + { + const char *suffix = strrchr (section->name, '.'); + int dwo = (suffix && strcmp (suffix, ".dwo") == 0) ? 1 : 0; + + printf (_(" (indexed string: 0x%s): %s"), + dwarf_vmatoa ("x", uvalue), + fetch_indexed_string (uvalue, this_set, offset_size, dwo)); + } + break; + + case DW_FORM_GNU_strp_alt: + if (!do_loc) + printf (_(" (alt indirect string, offset: 0x%s)"), + dwarf_vmatoa ("x", uvalue)); + break; + + case DW_FORM_indirect: + /* Handled above. */ + break; + + case DW_FORM_ref_sig8: + if (!do_loc) + { + dwarf_vma high_bits; + char buf[64]; + + SAFE_BYTE_GET64 (data, &high_bits, &uvalue, end); + printf (" signature: 0x%s", + dwarf_vmatoa64 (high_bits, uvalue, buf, sizeof (buf))); + } + data += 8; + break; + + case DW_FORM_GNU_addr_index: + if (!do_loc) + printf (_(" (addr_index: 0x%s): %s"), + dwarf_vmatoa ("x", uvalue), + fetch_indexed_value (uvalue * pointer_size, pointer_size)); + break; + + default: + warn (_("Unrecognized form: %lu\n"), form); + break; + } + + if ((do_loc || do_debug_loc || do_debug_ranges) + && num_debug_info_entries == 0 + && debug_info_p != NULL) + { + switch (attribute) + { + case DW_AT_frame_base: + have_frame_base = 1; + case DW_AT_location: + case DW_AT_string_length: + case DW_AT_return_addr: + case DW_AT_data_member_location: + case DW_AT_vtable_elem_location: + case DW_AT_segment: + case DW_AT_static_link: + case DW_AT_use_location: + case DW_AT_GNU_call_site_value: + case DW_AT_GNU_call_site_data_value: + case DW_AT_GNU_call_site_target: + case DW_AT_GNU_call_site_target_clobbered: + if ((dwarf_version < 4 + && (form == DW_FORM_data4 || form == DW_FORM_data8)) + || form == DW_FORM_sec_offset) + { + /* Process location list. */ + unsigned int lmax = debug_info_p->max_loc_offsets; + unsigned int num = debug_info_p->num_loc_offsets; + + if (lmax == 0 || num >= lmax) + { + lmax += 1024; + debug_info_p->loc_offsets = (dwarf_vma *) + xcrealloc (debug_info_p->loc_offsets, + lmax, sizeof (*debug_info_p->loc_offsets)); + debug_info_p->have_frame_base = (int *) + xcrealloc (debug_info_p->have_frame_base, + lmax, sizeof (*debug_info_p->have_frame_base)); + debug_info_p->max_loc_offsets = lmax; + } + if (this_set != NULL) + uvalue += this_set->section_offsets [DW_SECT_LOC]; + debug_info_p->loc_offsets [num] = uvalue; + debug_info_p->have_frame_base [num] = have_frame_base; + debug_info_p->num_loc_offsets++; + } + break; + + case DW_AT_low_pc: + if (need_base_address) + debug_info_p->base_address = uvalue; + break; + + case DW_AT_GNU_addr_base: + debug_info_p->addr_base = uvalue; + break; + + case DW_AT_GNU_ranges_base: + debug_info_p->ranges_base = uvalue; + break; + + case DW_AT_ranges: + if ((dwarf_version < 4 + && (form == DW_FORM_data4 || form == DW_FORM_data8)) + || form == DW_FORM_sec_offset) + { + /* Process range list. */ + unsigned int lmax = debug_info_p->max_range_lists; + unsigned int num = debug_info_p->num_range_lists; + + if (lmax == 0 || num >= lmax) + { + lmax += 1024; + debug_info_p->range_lists = (dwarf_vma *) + xcrealloc (debug_info_p->range_lists, + lmax, sizeof (*debug_info_p->range_lists)); + debug_info_p->max_range_lists = lmax; + } + debug_info_p->range_lists [num] = uvalue; + debug_info_p->num_range_lists++; + } + break; + + default: + break; + } + } + + if (do_loc || attribute == 0) + return data; + + /* For some attributes we can display further information. */ + printf ("\t"); + + switch (attribute) + { + case DW_AT_inline: + switch (uvalue) + { + case DW_INL_not_inlined: + printf (_("(not inlined)")); + break; + case DW_INL_inlined: + printf (_("(inlined)")); + break; + case DW_INL_declared_not_inlined: + printf (_("(declared as inline but ignored)")); + break; + case DW_INL_declared_inlined: + printf (_("(declared as inline and inlined)")); + break; + default: + printf (_(" (Unknown inline attribute value: %s)"), + dwarf_vmatoa ("x", uvalue)); + break; + } + break; + + case DW_AT_language: + switch (uvalue) + { + /* Ordered by the numeric value of these constants. */ + case DW_LANG_C89: printf ("(ANSI C)"); break; + case DW_LANG_C: printf ("(non-ANSI C)"); break; + case DW_LANG_Ada83: printf ("(Ada)"); break; + case DW_LANG_C_plus_plus: printf ("(C++)"); break; + case DW_LANG_Cobol74: printf ("(Cobol 74)"); break; + case DW_LANG_Cobol85: printf ("(Cobol 85)"); break; + case DW_LANG_Fortran77: printf ("(FORTRAN 77)"); break; + case DW_LANG_Fortran90: printf ("(Fortran 90)"); break; + case DW_LANG_Pascal83: printf ("(ANSI Pascal)"); break; + case DW_LANG_Modula2: printf ("(Modula 2)"); break; + /* DWARF 2.1 values. */ + case DW_LANG_Java: printf ("(Java)"); break; + case DW_LANG_C99: printf ("(ANSI C99)"); break; + case DW_LANG_Ada95: printf ("(ADA 95)"); break; + case DW_LANG_Fortran95: printf ("(Fortran 95)"); break; + /* DWARF 3 values. */ + case DW_LANG_PLI: printf ("(PLI)"); break; + case DW_LANG_ObjC: printf ("(Objective C)"); break; + case DW_LANG_ObjC_plus_plus: printf ("(Objective C++)"); break; + case DW_LANG_UPC: printf ("(Unified Parallel C)"); break; + case DW_LANG_D: printf ("(D)"); break; + /* DWARF 4 values. */ + case DW_LANG_Python: printf ("(Python)"); break; + /* DWARF 5 values. */ + case DW_LANG_Go: printf ("(Go)"); break; + /* MIPS extension. */ + case DW_LANG_Mips_Assembler: printf ("(MIPS assembler)"); break; + /* UPC extension. */ + case DW_LANG_Upc: printf ("(Unified Parallel C)"); break; + default: + if (uvalue >= DW_LANG_lo_user && uvalue <= DW_LANG_hi_user) + printf (_("(implementation defined: %s)"), + dwarf_vmatoa ("x", uvalue)); + else + printf (_("(Unknown: %s)"), dwarf_vmatoa ("x", uvalue)); + break; + } + break; + + case DW_AT_encoding: + switch (uvalue) + { + case DW_ATE_void: printf ("(void)"); break; + case DW_ATE_address: printf ("(machine address)"); break; + case DW_ATE_boolean: printf ("(boolean)"); break; + case DW_ATE_complex_float: printf ("(complex float)"); break; + case DW_ATE_float: printf ("(float)"); break; + case DW_ATE_signed: printf ("(signed)"); break; + case DW_ATE_signed_char: printf ("(signed char)"); break; + case DW_ATE_unsigned: printf ("(unsigned)"); break; + case DW_ATE_unsigned_char: printf ("(unsigned char)"); break; + /* DWARF 2.1 values: */ + case DW_ATE_imaginary_float: printf ("(imaginary float)"); break; + case DW_ATE_decimal_float: printf ("(decimal float)"); break; + /* DWARF 3 values: */ + case DW_ATE_packed_decimal: printf ("(packed_decimal)"); break; + case DW_ATE_numeric_string: printf ("(numeric_string)"); break; + case DW_ATE_edited: printf ("(edited)"); break; + case DW_ATE_signed_fixed: printf ("(signed_fixed)"); break; + case DW_ATE_unsigned_fixed: printf ("(unsigned_fixed)"); break; + /* HP extensions: */ + case DW_ATE_HP_float80: printf ("(HP_float80)"); break; + case DW_ATE_HP_complex_float80: printf ("(HP_complex_float80)"); break; + case DW_ATE_HP_float128: printf ("(HP_float128)"); break; + case DW_ATE_HP_complex_float128:printf ("(HP_complex_float128)"); break; + case DW_ATE_HP_floathpintel: printf ("(HP_floathpintel)"); break; + case DW_ATE_HP_imaginary_float80: printf ("(HP_imaginary_float80)"); break; + case DW_ATE_HP_imaginary_float128: printf ("(HP_imaginary_float128)"); break; + + default: + if (uvalue >= DW_ATE_lo_user + && uvalue <= DW_ATE_hi_user) + printf (_("(user defined type)")); + else + printf (_("(unknown type)")); + break; + } + break; + + case DW_AT_accessibility: + switch (uvalue) + { + case DW_ACCESS_public: printf ("(public)"); break; + case DW_ACCESS_protected: printf ("(protected)"); break; + case DW_ACCESS_private: printf ("(private)"); break; + default: + printf (_("(unknown accessibility)")); + break; + } + break; + + case DW_AT_visibility: + switch (uvalue) + { + case DW_VIS_local: printf ("(local)"); break; + case DW_VIS_exported: printf ("(exported)"); break; + case DW_VIS_qualified: printf ("(qualified)"); break; + default: printf (_("(unknown visibility)")); break; + } + break; + + case DW_AT_virtuality: + switch (uvalue) + { + case DW_VIRTUALITY_none: printf ("(none)"); break; + case DW_VIRTUALITY_virtual: printf ("(virtual)"); break; + case DW_VIRTUALITY_pure_virtual:printf ("(pure_virtual)"); break; + default: printf (_("(unknown virtuality)")); break; + } + break; + + case DW_AT_identifier_case: + switch (uvalue) + { + case DW_ID_case_sensitive: printf ("(case_sensitive)"); break; + case DW_ID_up_case: printf ("(up_case)"); break; + case DW_ID_down_case: printf ("(down_case)"); break; + case DW_ID_case_insensitive: printf ("(case_insensitive)"); break; + default: printf (_("(unknown case)")); break; + } + break; + + case DW_AT_calling_convention: + switch (uvalue) + { + case DW_CC_normal: printf ("(normal)"); break; + case DW_CC_program: printf ("(program)"); break; + case DW_CC_nocall: printf ("(nocall)"); break; + default: + if (uvalue >= DW_CC_lo_user + && uvalue <= DW_CC_hi_user) + printf (_("(user defined)")); + else + printf (_("(unknown convention)")); + } + break; + + case DW_AT_ordering: + switch (uvalue) + { + case -1: printf (_("(undefined)")); break; + case 0: printf ("(row major)"); break; + case 1: printf ("(column major)"); break; + } + break; + + case DW_AT_frame_base: + have_frame_base = 1; + case DW_AT_location: + case DW_AT_string_length: + case DW_AT_return_addr: + case DW_AT_data_member_location: + case DW_AT_vtable_elem_location: + case DW_AT_segment: + case DW_AT_static_link: + case DW_AT_use_location: + case DW_AT_GNU_call_site_value: + case DW_AT_GNU_call_site_data_value: + case DW_AT_GNU_call_site_target: + case DW_AT_GNU_call_site_target_clobbered: + if ((dwarf_version < 4 + && (form == DW_FORM_data4 || form == DW_FORM_data8)) + || form == DW_FORM_sec_offset) + printf (_("(location list)")); + /* Fall through. */ + case DW_AT_allocated: + case DW_AT_associated: + case DW_AT_data_location: + case DW_AT_stride: + case DW_AT_upper_bound: + case DW_AT_lower_bound: + if (block_start) + { + int need_frame_base; + + printf ("("); + need_frame_base = decode_location_expression (block_start, + pointer_size, + offset_size, + dwarf_version, + uvalue, + cu_offset, section); + printf (")"); + if (need_frame_base && !have_frame_base) + printf (_(" [without DW_AT_frame_base]")); + } + break; + + case DW_AT_import: + { + if (form == DW_FORM_ref_sig8 + || form == DW_FORM_GNU_ref_alt) + break; + + if (form == DW_FORM_ref1 + || form == DW_FORM_ref2 + || form == DW_FORM_ref4 + || form == DW_FORM_ref_udata) + uvalue += cu_offset; + + if (uvalue >= section->size) + warn (_("Offset %s used as value for DW_AT_import attribute of DIE at offset %lx is too big.\n"), + dwarf_vmatoa ("x", uvalue), + (unsigned long) (orig_data - section->start)); + else + { + unsigned long abbrev_number; + abbrev_entry * entry; + + abbrev_number = read_uleb128 (section->start + uvalue, NULL, end); + + printf (_("[Abbrev Number: %ld"), abbrev_number); + /* Don't look up abbrev for DW_FORM_ref_addr, as it very often will + use different abbrev table, and we don't track .debug_info chunks + yet. */ + if (form != DW_FORM_ref_addr) + { + for (entry = first_abbrev; entry != NULL; entry = entry->next) + if (entry->entry == abbrev_number) + break; + if (entry != NULL) + printf (" (%s)", get_TAG_name (entry->tag)); + } + printf ("]"); + } + } + break; + + default: + break; + } + + return data; +} + +static const char * +get_AT_name (unsigned long attribute) +{ + const char *name; + + if (attribute == 0) + return "DW_AT value: 0"; + + /* One value is shared by the MIPS and HP extensions: */ + if (attribute == DW_AT_MIPS_fde) + return "DW_AT_MIPS_fde or DW_AT_HP_unmodifiable"; + + name = get_DW_AT_name (attribute); + + if (name == NULL) + { + static char buffer[100]; + + snprintf (buffer, sizeof (buffer), _("Unknown AT value: %lx"), + attribute); + return buffer; + } + + return name; +} + +static unsigned char * +read_and_display_attr (unsigned long attribute, + unsigned long form, + unsigned char * data, + unsigned char * end, + dwarf_vma cu_offset, + dwarf_vma pointer_size, + dwarf_vma offset_size, + int dwarf_version, + debug_info * debug_info_p, + int do_loc, + struct dwarf_section * section, + struct cu_tu_set * this_set) +{ + if (!do_loc) + printf (" %-18s:", get_AT_name (attribute)); + data = read_and_display_attr_value (attribute, form, data, end, + cu_offset, pointer_size, offset_size, + dwarf_version, debug_info_p, + do_loc, section, this_set); + if (!do_loc) + printf ("\n"); + return data; +} + +/* Process the contents of a .debug_info section. If do_loc is non-zero + then we are scanning for location lists and we do not want to display + anything to the user. If do_types is non-zero, we are processing + a .debug_types section instead of a .debug_info section. */ + +static int +process_debug_info (struct dwarf_section *section, + void *file, + enum dwarf_section_display_enum abbrev_sec, + int do_loc, + int do_types) +{ + unsigned char *start = section->start; + unsigned char *end = start + section->size; + unsigned char *section_begin; + unsigned int unit; + unsigned int num_units = 0; + + if ((do_loc || do_debug_loc || do_debug_ranges) + && num_debug_info_entries == 0 + && ! do_types) + { + dwarf_vma length; + + /* First scan the section to get the number of comp units. */ + for (section_begin = start, num_units = 0; section_begin < end; + num_units ++) + { + /* Read the first 4 bytes. For a 32-bit DWARF section, this + will be the length. For a 64-bit DWARF section, it'll be + the escape code 0xffffffff followed by an 8 byte length. */ + SAFE_BYTE_GET (length, section_begin, 4, end); + + if (length == 0xffffffff) + { + SAFE_BYTE_GET (length, section_begin + 4, 8, end); + section_begin += length + 12; + } + else if (length >= 0xfffffff0 && length < 0xffffffff) + { + warn (_("Reserved length value (0x%s) found in section %s\n"), + dwarf_vmatoa ("x", length), section->name); + return 0; + } + else + section_begin += length + 4; + + /* Negative values are illegal, they may even cause infinite + looping. This can happen if we can't accurately apply + relocations to an object file. */ + if ((signed long) length <= 0) + { + warn (_("Corrupt unit length (0x%s) found in section %s\n"), + dwarf_vmatoa ("x", length), section->name); + return 0; + } + } + + if (num_units == 0) + { + error (_("No comp units in %s section ?"), section->name); + return 0; + } + + /* Then allocate an array to hold the information. */ + debug_information = (debug_info *) cmalloc (num_units, + sizeof (* debug_information)); + if (debug_information == NULL) + { + error (_("Not enough memory for a debug info array of %u entries"), + num_units); + return 0; + } + } + + if (!do_loc) + { + if (dwarf_start_die == 0) + printf (_("Contents of the %s section:\n\n"), section->name); + + load_debug_section (str, file); + load_debug_section (str_dwo, file); + load_debug_section (str_index, file); + load_debug_section (str_index_dwo, file); + load_debug_section (debug_addr, file); + } + + load_debug_section (abbrev_sec, file); + if (debug_displays [abbrev_sec].section.start == NULL) + { + warn (_("Unable to locate %s section!\n"), + debug_displays [abbrev_sec].section.name); + return 0; + } + + for (section_begin = start, unit = 0; start < end; unit++) + { + DWARF2_Internal_CompUnit compunit; + unsigned char *hdrptr; + unsigned char *tags; + int level, last_level, saved_level; + dwarf_vma cu_offset; + unsigned int offset_size; + int initial_length_size; + dwarf_vma signature_high = 0; + dwarf_vma signature_low = 0; + dwarf_vma type_offset = 0; + struct cu_tu_set *this_set; + dwarf_vma abbrev_base; + size_t abbrev_size; + + hdrptr = start; + + SAFE_BYTE_GET_AND_INC (compunit.cu_length, hdrptr, 4, end); + + if (compunit.cu_length == 0xffffffff) + { + SAFE_BYTE_GET_AND_INC (compunit.cu_length, hdrptr, 8, end); + offset_size = 8; + initial_length_size = 12; + } + else + { + offset_size = 4; + initial_length_size = 4; + } + + SAFE_BYTE_GET_AND_INC (compunit.cu_version, hdrptr, 2, end); + + cu_offset = start - section_begin; + + this_set = find_cu_tu_set_v2 (cu_offset, do_types); + + SAFE_BYTE_GET_AND_INC (compunit.cu_abbrev_offset, hdrptr, offset_size, end); + + if (this_set == NULL) + { + abbrev_base = 0; + abbrev_size = debug_displays [abbrev_sec].section.size; + } + else + { + abbrev_base = this_set->section_offsets [DW_SECT_ABBREV]; + abbrev_size = this_set->section_sizes [DW_SECT_ABBREV]; + } + + SAFE_BYTE_GET_AND_INC (compunit.cu_pointer_size, hdrptr, 1, end); + + if (do_types) + { + SAFE_BYTE_GET64 (hdrptr, &signature_high, &signature_low, end); + hdrptr += 8; + SAFE_BYTE_GET_AND_INC (type_offset, hdrptr, offset_size, end); + } + + if ((do_loc || do_debug_loc || do_debug_ranges) + && num_debug_info_entries == 0 + && ! do_types) + { + debug_information [unit].cu_offset = cu_offset; + debug_information [unit].pointer_size + = compunit.cu_pointer_size; + debug_information [unit].offset_size = offset_size; + debug_information [unit].dwarf_version = compunit.cu_version; + debug_information [unit].base_address = 0; + debug_information [unit].addr_base = DEBUG_INFO_UNAVAILABLE; + debug_information [unit].ranges_base = DEBUG_INFO_UNAVAILABLE; + debug_information [unit].loc_offsets = NULL; + debug_information [unit].have_frame_base = NULL; + debug_information [unit].max_loc_offsets = 0; + debug_information [unit].num_loc_offsets = 0; + debug_information [unit].range_lists = NULL; + debug_information [unit].max_range_lists= 0; + debug_information [unit].num_range_lists = 0; + } + + if (!do_loc && dwarf_start_die == 0) + { + printf (_(" Compilation Unit @ offset 0x%s:\n"), + dwarf_vmatoa ("x", cu_offset)); + printf (_(" Length: 0x%s (%s)\n"), + dwarf_vmatoa ("x", compunit.cu_length), + offset_size == 8 ? "64-bit" : "32-bit"); + printf (_(" Version: %d\n"), compunit.cu_version); + printf (_(" Abbrev Offset: 0x%s\n"), + dwarf_vmatoa ("x", compunit.cu_abbrev_offset)); + printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size); + if (do_types) + { + char buf[64]; + + printf (_(" Signature: 0x%s\n"), + dwarf_vmatoa64 (signature_high, signature_low, + buf, sizeof (buf))); + printf (_(" Type Offset: 0x%s\n"), + dwarf_vmatoa ("x", type_offset)); + } + if (this_set != NULL) + { + dwarf_vma *offsets = this_set->section_offsets; + size_t *sizes = this_set->section_sizes; + + printf (_(" Section contributions:\n")); + printf (_(" .debug_abbrev.dwo: 0x%s 0x%s\n"), + dwarf_vmatoa ("x", offsets [DW_SECT_ABBREV]), + dwarf_vmatoa ("x", sizes [DW_SECT_ABBREV])); + printf (_(" .debug_line.dwo: 0x%s 0x%s\n"), + dwarf_vmatoa ("x", offsets [DW_SECT_LINE]), + dwarf_vmatoa ("x", sizes [DW_SECT_LINE])); + printf (_(" .debug_loc.dwo: 0x%s 0x%s\n"), + dwarf_vmatoa ("x", offsets [DW_SECT_LOC]), + dwarf_vmatoa ("x", sizes [DW_SECT_LOC])); + printf (_(" .debug_str_offsets.dwo: 0x%s 0x%s\n"), + dwarf_vmatoa ("x", offsets [DW_SECT_STR_OFFSETS]), + dwarf_vmatoa ("x", sizes [DW_SECT_STR_OFFSETS])); + } + } + + if (cu_offset + compunit.cu_length + initial_length_size + > section->size) + { + warn (_("Debug info is corrupted, length of CU at %s" + " extends beyond end of section (length = %s)\n"), + dwarf_vmatoa ("x", cu_offset), + dwarf_vmatoa ("x", compunit.cu_length)); + break; + } + tags = hdrptr; + start += compunit.cu_length + initial_length_size; + + if (compunit.cu_version != 2 + && compunit.cu_version != 3 + && compunit.cu_version != 4) + { + warn (_("CU at offset %s contains corrupt or " + "unsupported version number: %d.\n"), + dwarf_vmatoa ("x", cu_offset), compunit.cu_version); + continue; + } + + free_abbrevs (); + + /* Process the abbrevs used by this compilation unit. DWARF + sections under Mach-O have non-zero addresses. */ + if (compunit.cu_abbrev_offset >= abbrev_size) + warn (_("Debug info is corrupted, abbrev offset (%lx) is larger than abbrev section size (%lx)\n"), + (unsigned long) compunit.cu_abbrev_offset, + (unsigned long) abbrev_size); + else + process_abbrev_section + (((unsigned char *) debug_displays [abbrev_sec].section.start + + abbrev_base + compunit.cu_abbrev_offset), + ((unsigned char *) debug_displays [abbrev_sec].section.start + + abbrev_base + abbrev_size)); + + level = 0; + last_level = level; + saved_level = -1; + while (tags < start) + { + unsigned int bytes_read; + unsigned long abbrev_number; + unsigned long die_offset; + abbrev_entry *entry; + abbrev_attr *attr; + int do_printing = 1; + + die_offset = tags - section_begin; + + abbrev_number = read_uleb128 (tags, & bytes_read, start); + tags += bytes_read; + + /* A null DIE marks the end of a list of siblings or it may also be + a section padding. */ + if (abbrev_number == 0) + { + /* Check if it can be a section padding for the last CU. */ + if (level == 0 && start == end) + { + unsigned char *chk; + + for (chk = tags; chk < start; chk++) + if (*chk != 0) + break; + if (chk == start) + break; + } + + if (!do_loc && die_offset >= dwarf_start_die + && (dwarf_cutoff_level == -1 + || level < dwarf_cutoff_level)) + printf (_(" <%d><%lx>: Abbrev Number: 0\n"), + level, die_offset); + + --level; + if (level < 0) + { + static unsigned num_bogus_warns = 0; + + if (num_bogus_warns < 3) + { + warn (_("Bogus end-of-siblings marker detected at offset %lx in %s section\n"), + die_offset, section->name); + num_bogus_warns ++; + if (num_bogus_warns == 3) + warn (_("Further warnings about bogus end-of-sibling markers suppressed\n")); + } + } + if (dwarf_start_die != 0 && level < saved_level) + return 1; + continue; + } + + if (!do_loc) + { + if (dwarf_start_die != 0 && die_offset < dwarf_start_die) + do_printing = 0; + else + { + if (dwarf_start_die != 0 && die_offset == dwarf_start_die) + saved_level = level; + do_printing = (dwarf_cutoff_level == -1 + || level < dwarf_cutoff_level); + if (do_printing) + printf (_(" <%d><%lx>: Abbrev Number: %lu"), + level, die_offset, abbrev_number); + else if (dwarf_cutoff_level == -1 + || last_level < dwarf_cutoff_level) + printf (_(" <%d><%lx>: ...\n"), level, die_offset); + last_level = level; + } + } + + /* Scan through the abbreviation list until we reach the + correct entry. */ + for (entry = first_abbrev; + entry && entry->entry != abbrev_number; + entry = entry->next) + continue; + + if (entry == NULL) + { + if (!do_loc && do_printing) + { + printf ("\n"); + fflush (stdout); + } + warn (_("DIE at offset %lx refers to abbreviation number %lu which does not exist\n"), + die_offset, abbrev_number); + return 0; + } + + if (!do_loc && do_printing) + printf (" (%s)\n", get_TAG_name (entry->tag)); + + switch (entry->tag) + { + default: + need_base_address = 0; + break; + case DW_TAG_compile_unit: + need_base_address = 1; + break; + case DW_TAG_entry_point: + case DW_TAG_subprogram: + need_base_address = 0; + /* Assuming that there is no DW_AT_frame_base. */ + have_frame_base = 0; + break; + } + + for (attr = entry->first_attr; + attr && attr->attribute; + attr = attr->next) + { + debug_info *arg; + + if (! do_loc && do_printing) + /* Show the offset from where the tag was extracted. */ + printf (" <%lx>", (unsigned long)(tags - section_begin)); + + arg = debug_information; + if (debug_information) + arg += unit; + + tags = read_and_display_attr (attr->attribute, + attr->form, + tags, + end, + cu_offset, + compunit.cu_pointer_size, + offset_size, + compunit.cu_version, + arg, + do_loc || ! do_printing, + section, + this_set); + } + + if (entry->children) + ++level; + } + } + + /* Set num_debug_info_entries here so that it can be used to check if + we need to process .debug_loc and .debug_ranges sections. */ + if ((do_loc || do_debug_loc || do_debug_ranges) + && num_debug_info_entries == 0 + && ! do_types) + num_debug_info_entries = num_units; + + if (!do_loc) + printf ("\n"); + + return 1; +} + +/* Locate and scan the .debug_info section in the file and record the pointer + sizes and offsets for the compilation units in it. Usually an executable + will have just one pointer size, but this is not guaranteed, and so we try + not to make any assumptions. Returns zero upon failure, or the number of + compilation units upon success. */ + +static unsigned int +load_debug_info (void * file) +{ + /* Reset the last pointer size so that we can issue correct error + messages if we are displaying the contents of more than one section. */ + last_pointer_size = 0; + warned_about_missing_comp_units = FALSE; + + /* If we have already tried and failed to load the .debug_info + section then do not bother to repeat the task. */ + if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE) + return 0; + + /* If we already have the information there is nothing else to do. */ + if (num_debug_info_entries > 0) + return num_debug_info_entries; + + /* If this is a DWARF package file, load the CU and TU indexes. */ + load_cu_tu_indexes (file); + + if (load_debug_section (info, file) + && process_debug_info (&debug_displays [info].section, file, abbrev, 1, 0)) + return num_debug_info_entries; + else if (load_debug_section (info_dwo, file) + && process_debug_info (&debug_displays [info_dwo].section, file, + abbrev_dwo, 1, 0)) + return num_debug_info_entries; + + num_debug_info_entries = DEBUG_INFO_UNAVAILABLE; + return 0; +} + +/* Read a DWARF .debug_line section header starting at DATA. + Upon success returns an updated DATA pointer and the LINFO + structure and the END_OF_SEQUENCE pointer will be filled in. + Otherwise returns NULL. */ + +static unsigned char * +read_debug_line_header (struct dwarf_section * section, + unsigned char * data, + unsigned char * end, + DWARF2_Internal_LineInfo * linfo, + unsigned char ** end_of_sequence) +{ + unsigned char *hdrptr; + unsigned int offset_size; + unsigned int initial_length_size; + + /* Extract information from the Line Number Program Header. + (section 6.2.4 in the Dwarf3 doc). */ + hdrptr = data; + + /* Get and check the length of the block. */ + SAFE_BYTE_GET_AND_INC (linfo->li_length, hdrptr, 4, end); + + if (linfo->li_length == 0xffffffff) + { + /* This section is 64-bit DWARF 3. */ + SAFE_BYTE_GET_AND_INC (linfo->li_length, hdrptr, 8, end); + offset_size = 8; + initial_length_size = 12; + } + else + { + offset_size = 4; + initial_length_size = 4; + } + + if (linfo->li_length + initial_length_size > section->size) + { + /* If the length is just a bias against the initial_length_size then + this means that the field has a relocation against it which has not + been applied. (Ie we are dealing with an object file, not a linked + binary). Do not complain but instead assume that the rest of the + section applies to this particular header. */ + if (linfo->li_length == - initial_length_size) + { + linfo->li_length = section->size - initial_length_size; + } + else + { + warn (_("The line info appears to be corrupt - " + "the section is too small\n")); + return NULL; + } + } + + /* Get and check the version number. */ + SAFE_BYTE_GET_AND_INC (linfo->li_version, hdrptr, 2, end); + + if (linfo->li_version != 2 + && linfo->li_version != 3 + && linfo->li_version != 4) + { + warn (_("Only DWARF version 2, 3 and 4 line info is currently supported.\n")); + return NULL; + } + + SAFE_BYTE_GET_AND_INC (linfo->li_prologue_length, hdrptr, offset_size, end); + SAFE_BYTE_GET_AND_INC (linfo->li_min_insn_length, hdrptr, 1, end); + + if (linfo->li_version >= 4) + { + SAFE_BYTE_GET_AND_INC (linfo->li_max_ops_per_insn, hdrptr, 1, end); + + if (linfo->li_max_ops_per_insn == 0) + { + warn (_("Invalid maximum operations per insn.\n")); + return NULL; + } + } + else + linfo->li_max_ops_per_insn = 1; + + SAFE_BYTE_GET_AND_INC (linfo->li_default_is_stmt, hdrptr, 1, end); + SAFE_BYTE_GET_AND_INC (linfo->li_line_base, hdrptr, 1, end); + SAFE_BYTE_GET_AND_INC (linfo->li_line_range, hdrptr, 1, end); + SAFE_BYTE_GET_AND_INC (linfo->li_opcode_base, hdrptr, 1, end); + + /* Sign extend the line base field. */ + linfo->li_line_base <<= 24; + linfo->li_line_base >>= 24; + + * end_of_sequence = data + linfo->li_length + initial_length_size; + return hdrptr; +} + +static int +display_debug_lines_raw (struct dwarf_section *section, + unsigned char *data, + unsigned char *end) +{ + unsigned char *start = section->start; + + printf (_("Raw dump of debug contents of section %s:\n\n"), + section->name); + + while (data < end) + { + static DWARF2_Internal_LineInfo saved_linfo; + DWARF2_Internal_LineInfo linfo; + unsigned char *standard_opcodes; + unsigned char *end_of_sequence; + unsigned int last_dir_entry = 0; + int i; + + if (const_strneq (section->name, ".debug_line.") + /* Note: the following does not apply to .debug_line.dwo sections. + These are full debug_line sections. */ + && strcmp (section->name, ".debug_line.dwo") != 0) + { + /* Sections named .debug_line.<foo> are fragments of a .debug_line + section containing just the Line Number Statements. They are + created by the assembler and intended to be used alongside gcc's + -ffunction-sections command line option. When the linker's + garbage collection decides to discard a .text.<foo> section it + can then also discard the line number information in .debug_line.<foo>. + + Since the section is a fragment it does not have the details + needed to fill out a LineInfo structure, so instead we use the + details from the last full debug_line section that we processed. */ + end_of_sequence = end; + standard_opcodes = NULL; + linfo = saved_linfo; + reset_state_machine (linfo.li_default_is_stmt); + } + else + { + unsigned char * hdrptr; + + if ((hdrptr = read_debug_line_header (section, data, end, & linfo, + & end_of_sequence)) == NULL) + return 0; + + printf (_(" Offset: 0x%lx\n"), (long)(data - start)); + printf (_(" Length: %ld\n"), (long) linfo.li_length); + printf (_(" DWARF Version: %d\n"), linfo.li_version); + printf (_(" Prologue Length: %d\n"), linfo.li_prologue_length); + printf (_(" Minimum Instruction Length: %d\n"), linfo.li_min_insn_length); + if (linfo.li_version >= 4) + printf (_(" Maximum Ops per Instruction: %d\n"), linfo.li_max_ops_per_insn); + printf (_(" Initial value of 'is_stmt': %d\n"), linfo.li_default_is_stmt); + printf (_(" Line Base: %d\n"), linfo.li_line_base); + printf (_(" Line Range: %d\n"), linfo.li_line_range); + printf (_(" Opcode Base: %d\n"), linfo.li_opcode_base); + + reset_state_machine (linfo.li_default_is_stmt); + + /* Display the contents of the Opcodes table. */ + standard_opcodes = hdrptr; + + printf (_("\n Opcodes:\n")); + + for (i = 1; i < linfo.li_opcode_base; i++) + printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i - 1]); + + /* Display the contents of the Directory table. */ + data = standard_opcodes + linfo.li_opcode_base - 1; + + if (*data == 0) + printf (_("\n The Directory Table is empty.\n")); + else + { + printf (_("\n The Directory Table (offset 0x%lx):\n"), + (long)(data - start)); + + while (*data != 0) + { + printf (" %d\t%s\n", ++last_dir_entry, data); + + data += strnlen ((char *) data, end - data) + 1; + } + } + + /* Skip the NUL at the end of the table. */ + data++; + + /* Display the contents of the File Name table. */ + if (*data == 0) + printf (_("\n The File Name Table is empty.\n")); + else + { + printf (_("\n The File Name Table (offset 0x%lx):\n"), + (long)(data - start)); + printf (_(" Entry\tDir\tTime\tSize\tName\n")); + + while (*data != 0) + { + unsigned char *name; + unsigned int bytes_read; + + printf (" %d\t", ++state_machine_regs.last_file_entry); + name = data; + data += strnlen ((char *) data, end - data) + 1; + + printf ("%s\t", + dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); + data += bytes_read; + printf ("%s\t", + dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); + data += bytes_read; + printf ("%s\t", + dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); + data += bytes_read; + printf ("%s\n", name); + + if (data == end) + { + warn (_("Corrupt file name table entry\n")); + break; + } + } + } + + /* Skip the NUL at the end of the table. */ + data++; + putchar ('\n'); + saved_linfo = linfo; + } + + /* Now display the statements. */ + if (data >= end_of_sequence) + printf (_(" No Line Number Statements.\n")); + else + { + printf (_(" Line Number Statements:\n")); + + while (data < end_of_sequence) + { + unsigned char op_code; + dwarf_signed_vma adv; + dwarf_vma uladv; + unsigned int bytes_read; + + printf (" [0x%08lx]", (long)(data - start)); + + op_code = *data++; + + if (op_code >= linfo.li_opcode_base) + { + op_code -= linfo.li_opcode_base; + uladv = (op_code / linfo.li_line_range); + if (linfo.li_max_ops_per_insn == 1) + { + uladv *= linfo.li_min_insn_length; + state_machine_regs.address += uladv; + printf (_(" Special opcode %d: " + "advance Address by %s to 0x%s"), + op_code, dwarf_vmatoa ("u", uladv), + dwarf_vmatoa ("x", state_machine_regs.address)); + } + else + { + state_machine_regs.address + += ((state_machine_regs.op_index + uladv) + / linfo.li_max_ops_per_insn) + * linfo.li_min_insn_length; + state_machine_regs.op_index + = (state_machine_regs.op_index + uladv) + % linfo.li_max_ops_per_insn; + printf (_(" Special opcode %d: " + "advance Address by %s to 0x%s[%d]"), + op_code, dwarf_vmatoa ("u", uladv), + dwarf_vmatoa ("x", state_machine_regs.address), + state_machine_regs.op_index); + } + adv = (op_code % linfo.li_line_range) + linfo.li_line_base; + state_machine_regs.line += adv; + printf (_(" and Line by %s to %d\n"), + dwarf_vmatoa ("d", adv), state_machine_regs.line); + } + else switch (op_code) + { + case DW_LNS_extended_op: + data += process_extended_line_op (data, linfo.li_default_is_stmt, end); + break; + + case DW_LNS_copy: + printf (_(" Copy\n")); + break; + + case DW_LNS_advance_pc: + uladv = read_uleb128 (data, & bytes_read, end); + data += bytes_read; + if (linfo.li_max_ops_per_insn == 1) + { + uladv *= linfo.li_min_insn_length; + state_machine_regs.address += uladv; + printf (_(" Advance PC by %s to 0x%s\n"), + dwarf_vmatoa ("u", uladv), + dwarf_vmatoa ("x", state_machine_regs.address)); + } + else + { + state_machine_regs.address + += ((state_machine_regs.op_index + uladv) + / linfo.li_max_ops_per_insn) + * linfo.li_min_insn_length; + state_machine_regs.op_index + = (state_machine_regs.op_index + uladv) + % linfo.li_max_ops_per_insn; + printf (_(" Advance PC by %s to 0x%s[%d]\n"), + dwarf_vmatoa ("u", uladv), + dwarf_vmatoa ("x", state_machine_regs.address), + state_machine_regs.op_index); + } + break; + + case DW_LNS_advance_line: + adv = read_sleb128 (data, & bytes_read, end); + data += bytes_read; + state_machine_regs.line += adv; + printf (_(" Advance Line by %s to %d\n"), + dwarf_vmatoa ("d", adv), + state_machine_regs.line); + break; + + case DW_LNS_set_file: + adv = read_uleb128 (data, & bytes_read, end); + data += bytes_read; + printf (_(" Set File Name to entry %s in the File Name Table\n"), + dwarf_vmatoa ("d", adv)); + state_machine_regs.file = adv; + break; + + case DW_LNS_set_column: + uladv = read_uleb128 (data, & bytes_read, end); + data += bytes_read; + printf (_(" Set column to %s\n"), + dwarf_vmatoa ("u", uladv)); + state_machine_regs.column = uladv; + break; + + case DW_LNS_negate_stmt: + adv = state_machine_regs.is_stmt; + adv = ! adv; + printf (_(" Set is_stmt to %s\n"), dwarf_vmatoa ("d", adv)); + state_machine_regs.is_stmt = adv; + break; + + case DW_LNS_set_basic_block: + printf (_(" Set basic block\n")); + state_machine_regs.basic_block = 1; + break; + + case DW_LNS_const_add_pc: + uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range); + if (linfo.li_max_ops_per_insn) + { + uladv *= linfo.li_min_insn_length; + state_machine_regs.address += uladv; + printf (_(" Advance PC by constant %s to 0x%s\n"), + dwarf_vmatoa ("u", uladv), + dwarf_vmatoa ("x", state_machine_regs.address)); + } + else + { + state_machine_regs.address + += ((state_machine_regs.op_index + uladv) + / linfo.li_max_ops_per_insn) + * linfo.li_min_insn_length; + state_machine_regs.op_index + = (state_machine_regs.op_index + uladv) + % linfo.li_max_ops_per_insn; + printf (_(" Advance PC by constant %s to 0x%s[%d]\n"), + dwarf_vmatoa ("u", uladv), + dwarf_vmatoa ("x", state_machine_regs.address), + state_machine_regs.op_index); + } + break; + + case DW_LNS_fixed_advance_pc: + SAFE_BYTE_GET_AND_INC (uladv, data, 2, end); + state_machine_regs.address += uladv; + state_machine_regs.op_index = 0; + printf (_(" Advance PC by fixed size amount %s to 0x%s\n"), + dwarf_vmatoa ("u", uladv), + dwarf_vmatoa ("x", state_machine_regs.address)); + break; + + case DW_LNS_set_prologue_end: + printf (_(" Set prologue_end to true\n")); + break; + + case DW_LNS_set_epilogue_begin: + printf (_(" Set epilogue_begin to true\n")); + break; + + case DW_LNS_set_isa: + uladv = read_uleb128 (data, & bytes_read, end); + data += bytes_read; + printf (_(" Set ISA to %s\n"), dwarf_vmatoa ("u", uladv)); + break; + + default: + printf (_(" Unknown opcode %d with operands: "), op_code); + + if (standard_opcodes != NULL) + for (i = standard_opcodes[op_code - 1]; i > 0 ; --i) + { + printf ("0x%s%s", dwarf_vmatoa ("x", read_uleb128 (data, + &bytes_read, end)), + i == 1 ? "" : ", "); + data += bytes_read; + } + putchar ('\n'); + break; + } + } + putchar ('\n'); + } + } + + return 1; +} + +typedef struct +{ + unsigned char *name; + unsigned int directory_index; + unsigned int modification_date; + unsigned int length; +} File_Entry; + +/* Output a decoded representation of the .debug_line section. */ + +static int +display_debug_lines_decoded (struct dwarf_section *section, + unsigned char *data, + unsigned char *end) +{ + static DWARF2_Internal_LineInfo saved_linfo; + + printf (_("Decoded dump of debug contents of section %s:\n\n"), + section->name); + + while (data < end) + { + /* This loop amounts to one iteration per compilation unit. */ + DWARF2_Internal_LineInfo linfo; + unsigned char *standard_opcodes; + unsigned char *end_of_sequence; + int i; + File_Entry *file_table = NULL; + unsigned int n_files = 0; + unsigned char **directory_table = NULL; + unsigned int n_directories = 0; + + if (const_strneq (section->name, ".debug_line.") + /* Note: the following does not apply to .debug_line.dwo sections. + These are full debug_line sections. */ + && strcmp (section->name, ".debug_line.dwo") != 0) + { + /* See comment in display_debug_lines_raw(). */ + end_of_sequence = end; + standard_opcodes = NULL; + linfo = saved_linfo; + reset_state_machine (linfo.li_default_is_stmt); + } + else + { + unsigned char *hdrptr; + + if ((hdrptr = read_debug_line_header (section, data, end, & linfo, + & end_of_sequence)) == NULL) + return 0; + + reset_state_machine (linfo.li_default_is_stmt); + + /* Save a pointer to the contents of the Opcodes table. */ + standard_opcodes = hdrptr; + + /* Traverse the Directory table just to count entries. */ + data = standard_opcodes + linfo.li_opcode_base - 1; + if (*data != 0) + { + unsigned char *ptr_directory_table = data; + + while (*data != 0) + { + data += strnlen ((char *) data, end - data) + 1; + n_directories++; + } + + /* Go through the directory table again to save the directories. */ + directory_table = (unsigned char **) + xmalloc (n_directories * sizeof (unsigned char *)); + + i = 0; + while (*ptr_directory_table != 0) + { + directory_table[i] = ptr_directory_table; + ptr_directory_table += strnlen ((char *) ptr_directory_table, + ptr_directory_table - end) + 1; + i++; + } + } + /* Skip the NUL at the end of the table. */ + data++; + + /* Traverse the File Name table just to count the entries. */ + if (*data != 0) + { + unsigned char *ptr_file_name_table = data; + + while (*data != 0) + { + unsigned int bytes_read; + + /* Skip Name, directory index, last modification time and length + of file. */ + data += strnlen ((char *) data, end - data) + 1; + read_uleb128 (data, & bytes_read, end); + data += bytes_read; + read_uleb128 (data, & bytes_read, end); + data += bytes_read; + read_uleb128 (data, & bytes_read, end); + data += bytes_read; + + n_files++; + } + + /* Go through the file table again to save the strings. */ + file_table = (File_Entry *) xmalloc (n_files * sizeof (File_Entry)); + + i = 0; + while (*ptr_file_name_table != 0) + { + unsigned int bytes_read; + + file_table[i].name = ptr_file_name_table; + ptr_file_name_table += strnlen ((char *) ptr_file_name_table, + end - ptr_file_name_table) + 1; + + /* We are not interested in directory, time or size. */ + file_table[i].directory_index = read_uleb128 (ptr_file_name_table, + & bytes_read, end); + ptr_file_name_table += bytes_read; + file_table[i].modification_date = read_uleb128 (ptr_file_name_table, + & bytes_read, end); + ptr_file_name_table += bytes_read; + file_table[i].length = read_uleb128 (ptr_file_name_table, & bytes_read, end); + ptr_file_name_table += bytes_read; + i++; + } + i = 0; + + /* Print the Compilation Unit's name and a header. */ + if (directory_table == NULL) + { + printf (_("CU: %s:\n"), file_table[0].name); + printf (_("File name Line number Starting address\n")); + } + else + { + unsigned int ix = file_table[0].directory_index; + const char *directory = ix ? (char *)directory_table[ix - 1] : "."; + + if (do_wide || strlen (directory) < 76) + printf (_("CU: %s/%s:\n"), directory, file_table[0].name); + else + printf ("%s:\n", file_table[0].name); + + printf (_("File name Line number Starting address\n")); + } + } + + /* Skip the NUL at the end of the table. */ + data++; + + saved_linfo = linfo; + } + + /* This loop iterates through the Dwarf Line Number Program. */ + while (data < end_of_sequence) + { + unsigned char op_code; + int adv; + unsigned long int uladv; + unsigned int bytes_read; + int is_special_opcode = 0; + + op_code = *data++; + + if (op_code >= linfo.li_opcode_base) + { + op_code -= linfo.li_opcode_base; + uladv = (op_code / linfo.li_line_range); + if (linfo.li_max_ops_per_insn == 1) + { + uladv *= linfo.li_min_insn_length; + state_machine_regs.address += uladv; + } + else + { + state_machine_regs.address + += ((state_machine_regs.op_index + uladv) + / linfo.li_max_ops_per_insn) + * linfo.li_min_insn_length; + state_machine_regs.op_index + = (state_machine_regs.op_index + uladv) + % linfo.li_max_ops_per_insn; + } + + adv = (op_code % linfo.li_line_range) + linfo.li_line_base; + state_machine_regs.line += adv; + is_special_opcode = 1; + } + else switch (op_code) + { + case DW_LNS_extended_op: + { + unsigned int ext_op_code_len; + unsigned char ext_op_code; + unsigned char *op_code_data = data; + + ext_op_code_len = read_uleb128 (op_code_data, &bytes_read, + end_of_sequence); + op_code_data += bytes_read; + + if (ext_op_code_len == 0) + { + warn (_("badly formed extended line op encountered!\n")); + break; + } + ext_op_code_len += bytes_read; + ext_op_code = *op_code_data++; + + switch (ext_op_code) + { + case DW_LNE_end_sequence: + reset_state_machine (linfo.li_default_is_stmt); + break; + case DW_LNE_set_address: + SAFE_BYTE_GET_AND_INC (state_machine_regs.address, + op_code_data, + ext_op_code_len - bytes_read - 1, + end); + state_machine_regs.op_index = 0; + break; + case DW_LNE_define_file: + { + file_table = (File_Entry *) xrealloc + (file_table, (n_files + 1) * sizeof (File_Entry)); + + ++state_machine_regs.last_file_entry; + /* Source file name. */ + file_table[n_files].name = op_code_data; + op_code_data += strlen ((char *) op_code_data) + 1; + /* Directory index. */ + file_table[n_files].directory_index = + read_uleb128 (op_code_data, & bytes_read, + end_of_sequence); + op_code_data += bytes_read; + /* Last modification time. */ + file_table[n_files].modification_date = + read_uleb128 (op_code_data, & bytes_read, + end_of_sequence); + op_code_data += bytes_read; + /* File length. */ + file_table[n_files].length = + read_uleb128 (op_code_data, & bytes_read, + end_of_sequence); + + n_files++; + break; + } + case DW_LNE_set_discriminator: + case DW_LNE_HP_set_sequence: + /* Simply ignored. */ + break; + + default: + printf (_("UNKNOWN (%u): length %d\n"), + ext_op_code, ext_op_code_len - bytes_read); + break; + } + data += ext_op_code_len; + break; + } + case DW_LNS_copy: + break; + + case DW_LNS_advance_pc: + uladv = read_uleb128 (data, & bytes_read, end); + data += bytes_read; + if (linfo.li_max_ops_per_insn == 1) + { + uladv *= linfo.li_min_insn_length; + state_machine_regs.address += uladv; + } + else + { + state_machine_regs.address + += ((state_machine_regs.op_index + uladv) + / linfo.li_max_ops_per_insn) + * linfo.li_min_insn_length; + state_machine_regs.op_index + = (state_machine_regs.op_index + uladv) + % linfo.li_max_ops_per_insn; + } + break; + + case DW_LNS_advance_line: + adv = read_sleb128 (data, & bytes_read, end); + data += bytes_read; + state_machine_regs.line += adv; + break; + + case DW_LNS_set_file: + adv = read_uleb128 (data, & bytes_read, end); + data += bytes_read; + state_machine_regs.file = adv; + + if (file_table == NULL) + printf (_("\n [Use file table entry %d]\n"), state_machine_regs.file - 1); + else if (file_table[state_machine_regs.file - 1].directory_index == 0) + /* If directory index is 0, that means current directory. */ + printf ("\n./%s:[++]\n", + file_table[state_machine_regs.file - 1].name); + else if (directory_table == NULL) + printf (_("\n [Use directory table entry %d]\n"), + file_table[state_machine_regs.file - 1].directory_index - 1); + else + /* The directory index starts counting at 1. */ + printf ("\n%s/%s:\n", + directory_table[file_table[state_machine_regs.file - 1].directory_index - 1], + file_table[state_machine_regs.file - 1].name); + break; + + case DW_LNS_set_column: + uladv = read_uleb128 (data, & bytes_read, end); + data += bytes_read; + state_machine_regs.column = uladv; + break; + + case DW_LNS_negate_stmt: + adv = state_machine_regs.is_stmt; + adv = ! adv; + state_machine_regs.is_stmt = adv; + break; + + case DW_LNS_set_basic_block: + state_machine_regs.basic_block = 1; + break; + + case DW_LNS_const_add_pc: + uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range); + if (linfo.li_max_ops_per_insn == 1) + { + uladv *= linfo.li_min_insn_length; + state_machine_regs.address += uladv; + } + else + { + state_machine_regs.address + += ((state_machine_regs.op_index + uladv) + / linfo.li_max_ops_per_insn) + * linfo.li_min_insn_length; + state_machine_regs.op_index + = (state_machine_regs.op_index + uladv) + % linfo.li_max_ops_per_insn; + } + break; + + case DW_LNS_fixed_advance_pc: + SAFE_BYTE_GET_AND_INC (uladv, data, 2, end); + state_machine_regs.address += uladv; + state_machine_regs.op_index = 0; + break; + + case DW_LNS_set_prologue_end: + break; + + case DW_LNS_set_epilogue_begin: + break; + + case DW_LNS_set_isa: + uladv = read_uleb128 (data, & bytes_read, end); + data += bytes_read; + printf (_(" Set ISA to %lu\n"), uladv); + break; + + default: + printf (_(" Unknown opcode %d with operands: "), op_code); + + if (standard_opcodes != NULL) + for (i = standard_opcodes[op_code - 1]; i > 0 ; --i) + { + printf ("0x%s%s", dwarf_vmatoa ("x", read_uleb128 (data, + &bytes_read, end)), + i == 1 ? "" : ", "); + data += bytes_read; + } + putchar ('\n'); + break; + } + + /* Only Special opcodes, DW_LNS_copy and DW_LNE_end_sequence adds a row + to the DWARF address/line matrix. */ + if ((is_special_opcode) || (op_code == DW_LNE_end_sequence) + || (op_code == DW_LNS_copy)) + { + const unsigned int MAX_FILENAME_LENGTH = 35; + char *fileName; + char *newFileName = NULL; + size_t fileNameLength; + + if (file_table) + fileName = (char *) file_table[state_machine_regs.file - 1].name; + else + fileName = "<unknown>"; + + fileNameLength = strlen (fileName); + + if ((fileNameLength > MAX_FILENAME_LENGTH) && (!do_wide)) + { + newFileName = (char *) xmalloc (MAX_FILENAME_LENGTH + 1); + /* Truncate file name */ + strncpy (newFileName, + fileName + fileNameLength - MAX_FILENAME_LENGTH, + MAX_FILENAME_LENGTH + 1); + } + else + { + newFileName = (char *) xmalloc (fileNameLength + 1); + strncpy (newFileName, fileName, fileNameLength + 1); + } + + if (!do_wide || (fileNameLength <= MAX_FILENAME_LENGTH)) + { + if (linfo.li_max_ops_per_insn == 1) + printf ("%-35s %11d %#18" DWARF_VMA_FMT "x\n", + newFileName, state_machine_regs.line, + state_machine_regs.address); + else + printf ("%-35s %11d %#18" DWARF_VMA_FMT "x[%d]\n", + newFileName, state_machine_regs.line, + state_machine_regs.address, + state_machine_regs.op_index); + } + else + { + if (linfo.li_max_ops_per_insn == 1) + printf ("%s %11d %#18" DWARF_VMA_FMT "x\n", + newFileName, state_machine_regs.line, + state_machine_regs.address); + else + printf ("%s %11d %#18" DWARF_VMA_FMT "x[%d]\n", + newFileName, state_machine_regs.line, + state_machine_regs.address, + state_machine_regs.op_index); + } + + if (op_code == DW_LNE_end_sequence) + printf ("\n"); + + free (newFileName); + } + } + + if (file_table) + { + free (file_table); + file_table = NULL; + n_files = 0; + } + + if (directory_table) + { + free (directory_table); + directory_table = NULL; + n_directories = 0; + } + + putchar ('\n'); + } + + return 1; +} + +static int +display_debug_lines (struct dwarf_section *section, void *file ATTRIBUTE_UNUSED) +{ + unsigned char *data = section->start; + unsigned char *end = data + section->size; + int retValRaw = 1; + int retValDecoded = 1; + + if (do_debug_lines == 0) + do_debug_lines |= FLAG_DEBUG_LINES_RAW; + + if (do_debug_lines & FLAG_DEBUG_LINES_RAW) + retValRaw = display_debug_lines_raw (section, data, end); + + if (do_debug_lines & FLAG_DEBUG_LINES_DECODED) + retValDecoded = display_debug_lines_decoded (section, data, end); + + if (!retValRaw || !retValDecoded) + return 0; + + return 1; +} + +static debug_info * +find_debug_info_for_offset (unsigned long offset) +{ + unsigned int i; + + if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE) + return NULL; + + for (i = 0; i < num_debug_info_entries; i++) + if (debug_information[i].cu_offset == offset) + return debug_information + i; + + return NULL; +} + +static int +display_debug_pubnames (struct dwarf_section *section, + void *file ATTRIBUTE_UNUSED) +{ + DWARF2_Internal_PubNames names; + unsigned char *start = section->start; + unsigned char *end = start + section->size; + + /* It does not matter if this load fails, + we test for that later on. */ + load_debug_info (file); + + printf (_("Contents of the %s section:\n\n"), section->name); + + while (start < end) + { + unsigned char *data; + unsigned long offset; + unsigned int offset_size, initial_length_size; + + data = start; + + SAFE_BYTE_GET_AND_INC (names.pn_length, data, 4, end); + if (names.pn_length == 0xffffffff) + { + SAFE_BYTE_GET_AND_INC (names.pn_length, data, 8, end); + offset_size = 8; + initial_length_size = 12; + } + else + { + offset_size = 4; + initial_length_size = 4; + } + + SAFE_BYTE_GET_AND_INC (names.pn_version, data, 2, end); + SAFE_BYTE_GET_AND_INC (names.pn_offset, data, offset_size, end); + + if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE + && num_debug_info_entries > 0 + && find_debug_info_for_offset (names.pn_offset) == NULL) + warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"), + (unsigned long) names.pn_offset, section->name); + + SAFE_BYTE_GET_AND_INC (names.pn_size, data, offset_size, end); + + start += names.pn_length + initial_length_size; + + if (names.pn_version != 2 && names.pn_version != 3) + { + static int warned = 0; + + if (! warned) + { + warn (_("Only DWARF 2 and 3 pubnames are currently supported\n")); + warned = 1; + } + + continue; + } + + printf (_(" Length: %ld\n"), + (long) names.pn_length); + printf (_(" Version: %d\n"), + names.pn_version); + printf (_(" Offset into .debug_info section: 0x%lx\n"), + (unsigned long) names.pn_offset); + printf (_(" Size of area in .debug_info section: %ld\n"), + (long) names.pn_size); + + printf (_("\n Offset\tName\n")); + + do + { + SAFE_BYTE_GET (offset, data, offset_size, end); + + if (offset != 0) + { + data += offset_size; + printf (" %-6lx\t%s\n", offset, data); + data += strnlen ((char *) data, end - data) + 1; + } + } + while (offset != 0); + } + + printf ("\n"); + return 1; +} + +static int +display_debug_macinfo (struct dwarf_section *section, + void *file ATTRIBUTE_UNUSED) +{ + unsigned char *start = section->start; + unsigned char *end = start + section->size; + unsigned char *curr = start; + unsigned int bytes_read; + enum dwarf_macinfo_record_type op; + + printf (_("Contents of the %s section:\n\n"), section->name); + + while (curr < end) + { + unsigned int lineno; + const unsigned char *string; + + op = (enum dwarf_macinfo_record_type) *curr; + curr++; + + switch (op) + { + case DW_MACINFO_start_file: + { + unsigned int filenum; + + lineno = read_uleb128 (curr, & bytes_read, end); + curr += bytes_read; + filenum = read_uleb128 (curr, & bytes_read, end); + curr += bytes_read; + + printf (_(" DW_MACINFO_start_file - lineno: %d filenum: %d\n"), + lineno, filenum); + } + break; + + case DW_MACINFO_end_file: + printf (_(" DW_MACINFO_end_file\n")); + break; + + case DW_MACINFO_define: + lineno = read_uleb128 (curr, & bytes_read, end); + curr += bytes_read; + string = curr; + curr += strnlen ((char *) string, end - string) + 1; + printf (_(" DW_MACINFO_define - lineno : %d macro : %s\n"), + lineno, string); + break; + + case DW_MACINFO_undef: + lineno = read_uleb128 (curr, & bytes_read, end); + curr += bytes_read; + string = curr; + curr += strnlen ((char *) string, end - string) + 1; + printf (_(" DW_MACINFO_undef - lineno : %d macro : %s\n"), + lineno, string); + break; + + case DW_MACINFO_vendor_ext: + { + unsigned int constant; + + constant = read_uleb128 (curr, & bytes_read, end); + curr += bytes_read; + string = curr; + curr += strnlen ((char *) string, end - string) + 1; + printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %s\n"), + constant, string); + } + break; + } + } + + return 1; +} + +/* Given LINE_OFFSET into the .debug_line section, attempt to return + filename and dirname corresponding to file name table entry with index + FILEIDX. Return NULL on failure. */ + +static unsigned char * +get_line_filename_and_dirname (dwarf_vma line_offset, + dwarf_vma fileidx, + unsigned char **dir_name) +{ + struct dwarf_section *section = &debug_displays [line].section; + unsigned char *hdrptr, *dirtable, *file_name; + unsigned int offset_size, initial_length_size; + unsigned int version, opcode_base, bytes_read; + dwarf_vma length, diridx; + const unsigned char * end; + + *dir_name = NULL; + if (section->start == NULL + || line_offset >= section->size + || fileidx == 0) + return NULL; + + hdrptr = section->start + line_offset; + end = section->start + section->size; + + SAFE_BYTE_GET_AND_INC (length, hdrptr, 4, end); + if (length == 0xffffffff) + { + /* This section is 64-bit DWARF 3. */ + SAFE_BYTE_GET_AND_INC (length, hdrptr, 8, end); + offset_size = 8; + initial_length_size = 12; + } + else + { + offset_size = 4; + initial_length_size = 4; + } + if (length + initial_length_size > section->size) + return NULL; + + SAFE_BYTE_GET_AND_INC (version, hdrptr, 2, end); + if (version != 2 && version != 3 && version != 4) + return NULL; + hdrptr += offset_size + 1;/* Skip prologue_length and min_insn_length. */ + if (version >= 4) + hdrptr++; /* Skip max_ops_per_insn. */ + hdrptr += 3; /* Skip default_is_stmt, line_base, line_range. */ + + SAFE_BYTE_GET_AND_INC (opcode_base, hdrptr, 1, end); + if (opcode_base == 0) + return NULL; + + hdrptr += opcode_base - 1; + dirtable = hdrptr; + /* Skip over dirname table. */ + while (*hdrptr != '\0') + hdrptr += strnlen ((char *) hdrptr, end - hdrptr) + 1; + hdrptr++; /* Skip the NUL at the end of the table. */ + /* Now skip over preceding filename table entries. */ + for (; *hdrptr != '\0' && fileidx > 1; fileidx--) + { + hdrptr += strnlen ((char *) hdrptr, end - hdrptr) + 1; + read_uleb128 (hdrptr, &bytes_read, end); + hdrptr += bytes_read; + read_uleb128 (hdrptr, &bytes_read, end); + hdrptr += bytes_read; + read_uleb128 (hdrptr, &bytes_read, end); + hdrptr += bytes_read; + } + if (hdrptr == end || *hdrptr == '\0') + return NULL; + file_name = hdrptr; + hdrptr += strnlen ((char *) hdrptr, end - hdrptr) + 1; + diridx = read_uleb128 (hdrptr, &bytes_read, end); + if (diridx == 0) + return file_name; + for (; *dirtable != '\0' && diridx > 1; diridx--) + dirtable += strnlen ((char *) dirtable, end - dirtable) + 1; + if (*dirtable == '\0') + return NULL; + *dir_name = dirtable; + return file_name; +} + +static int +display_debug_macro (struct dwarf_section *section, + void *file) +{ + unsigned char *start = section->start; + unsigned char *end = start + section->size; + unsigned char *curr = start; + unsigned char *extended_op_buf[256]; + unsigned int bytes_read; + + load_debug_section (str, file); + load_debug_section (line, file); + + printf (_("Contents of the %s section:\n\n"), section->name); + + while (curr < end) + { + unsigned int lineno, version, flags; + unsigned int offset_size = 4; + const unsigned char *string; + dwarf_vma line_offset = 0, sec_offset = curr - start, offset; + unsigned char **extended_ops = NULL; + + SAFE_BYTE_GET_AND_INC (version, curr, 2, end); + if (version != 4) + { + error (_("Only GNU extension to DWARF 4 of %s is currently supported.\n"), + section->name); + return 0; + } + + SAFE_BYTE_GET_AND_INC (flags, curr, 1, end); + if (flags & 1) + offset_size = 8; + printf (_(" Offset: 0x%lx\n"), + (unsigned long) sec_offset); + printf (_(" Version: %d\n"), version); + printf (_(" Offset size: %d\n"), offset_size); + if (flags & 2) + { + SAFE_BYTE_GET_AND_INC (line_offset, curr, offset_size, end); + printf (_(" Offset into .debug_line: 0x%lx\n"), + (unsigned long) line_offset); + } + if (flags & 4) + { + unsigned int i, count, op; + dwarf_vma nargs, n; + + SAFE_BYTE_GET_AND_INC (count, curr, 1, end); + + memset (extended_op_buf, 0, sizeof (extended_op_buf)); + extended_ops = extended_op_buf; + if (count) + { + printf (_(" Extension opcode arguments:\n")); + for (i = 0; i < count; i++) + { + SAFE_BYTE_GET_AND_INC (op, curr, 1, end); + extended_ops[op] = curr; + nargs = read_uleb128 (curr, &bytes_read, end); + curr += bytes_read; + if (nargs == 0) + printf (_(" DW_MACRO_GNU_%02x has no arguments\n"), op); + else + { + printf (_(" DW_MACRO_GNU_%02x arguments: "), op); + for (n = 0; n < nargs; n++) + { + unsigned int form; + + SAFE_BYTE_GET_AND_INC (form, curr, 1, end); + printf ("%s%s", get_FORM_name (form), + n == nargs - 1 ? "\n" : ", "); + switch (form) + { + case DW_FORM_data1: + case DW_FORM_data2: + case DW_FORM_data4: + case DW_FORM_data8: + case DW_FORM_sdata: + case DW_FORM_udata: + case DW_FORM_block: + case DW_FORM_block1: + case DW_FORM_block2: + case DW_FORM_block4: + case DW_FORM_flag: + case DW_FORM_string: + case DW_FORM_strp: + case DW_FORM_sec_offset: + break; + default: + error (_("Invalid extension opcode form %s\n"), + get_FORM_name (form)); + return 0; + } + } + } + } + } + } + printf ("\n"); + + while (1) + { + unsigned int op; + + if (curr >= end) + { + error (_(".debug_macro section not zero terminated\n")); + return 0; + } + + SAFE_BYTE_GET_AND_INC (op, curr, 1, end); + if (op == 0) + break; + + switch (op) + { + case DW_MACRO_GNU_start_file: + { + unsigned int filenum; + unsigned char *file_name = NULL, *dir_name = NULL; + + lineno = read_uleb128 (curr, &bytes_read, end); + curr += bytes_read; + filenum = read_uleb128 (curr, &bytes_read, end); + curr += bytes_read; + + if ((flags & 2) == 0) + error (_("DW_MACRO_GNU_start_file used, but no .debug_line offset provided.\n")); + else + file_name + = get_line_filename_and_dirname (line_offset, filenum, + &dir_name); + if (file_name == NULL) + printf (_(" DW_MACRO_GNU_start_file - lineno: %d filenum: %d\n"), + lineno, filenum); + else + printf (_(" DW_MACRO_GNU_start_file - lineno: %d filenum: %d filename: %s%s%s\n"), + lineno, filenum, + dir_name != NULL ? (const char *) dir_name : "", + dir_name != NULL ? "/" : "", file_name); + } + break; + + case DW_MACRO_GNU_end_file: + printf (_(" DW_MACRO_GNU_end_file\n")); + break; + + case DW_MACRO_GNU_define: + lineno = read_uleb128 (curr, &bytes_read, end); + curr += bytes_read; + string = curr; + curr += strnlen ((char *) string, end - string) + 1; + printf (_(" DW_MACRO_GNU_define - lineno : %d macro : %s\n"), + lineno, string); + break; + + case DW_MACRO_GNU_undef: + lineno = read_uleb128 (curr, &bytes_read, end); + curr += bytes_read; + string = curr; + curr += strnlen ((char *) string, end - string) + 1; + printf (_(" DW_MACRO_GNU_undef - lineno : %d macro : %s\n"), + lineno, string); + break; + + case DW_MACRO_GNU_define_indirect: + lineno = read_uleb128 (curr, &bytes_read, end); + curr += bytes_read; + SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); + string = fetch_indirect_string (offset); + printf (_(" DW_MACRO_GNU_define_indirect - lineno : %d macro : %s\n"), + lineno, string); + break; + + case DW_MACRO_GNU_undef_indirect: + lineno = read_uleb128 (curr, &bytes_read, end); + curr += bytes_read; + SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); + string = fetch_indirect_string (offset); + printf (_(" DW_MACRO_GNU_undef_indirect - lineno : %d macro : %s\n"), + lineno, string); + break; + + case DW_MACRO_GNU_transparent_include: + SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); + printf (_(" DW_MACRO_GNU_transparent_include - offset : 0x%lx\n"), + (unsigned long) offset); + break; + + case DW_MACRO_GNU_define_indirect_alt: + lineno = read_uleb128 (curr, &bytes_read, end); + curr += bytes_read; + SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); + printf (_(" DW_MACRO_GNU_define_indirect_alt - lineno : %d macro offset : 0x%lx\n"), + lineno, (unsigned long) offset); + break; + + case DW_MACRO_GNU_undef_indirect_alt: + lineno = read_uleb128 (curr, &bytes_read, end); + curr += bytes_read; + SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); + printf (_(" DW_MACRO_GNU_undef_indirect_alt - lineno : %d macro offset : 0x%lx\n"), + lineno, (unsigned long) offset); + break; + + case DW_MACRO_GNU_transparent_include_alt: + SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); + printf (_(" DW_MACRO_GNU_transparent_include_alt - offset : 0x%lx\n"), + (unsigned long) offset); + break; + + default: + if (extended_ops == NULL || extended_ops[op] == NULL) + { + error (_(" Unknown macro opcode %02x seen\n"), op); + return 0; + } + else + { + /* Skip over unhandled opcodes. */ + dwarf_vma nargs, n; + unsigned char *desc = extended_ops[op]; + nargs = read_uleb128 (desc, &bytes_read, end); + desc += bytes_read; + if (nargs == 0) + { + printf (_(" DW_MACRO_GNU_%02x\n"), op); + break; + } + printf (_(" DW_MACRO_GNU_%02x -"), op); + for (n = 0; n < nargs; n++) + { + int val; + + SAFE_BYTE_GET_AND_INC (val, desc, 1, end); + curr + = read_and_display_attr_value (0, val, + curr, end, 0, 0, offset_size, + version, NULL, 0, NULL, + NULL); + if (n != nargs - 1) + printf (","); + } + printf ("\n"); + } + break; + } + } + + printf ("\n"); + } + + return 1; +} + +static int +display_debug_abbrev (struct dwarf_section *section, + void *file ATTRIBUTE_UNUSED) +{ + abbrev_entry *entry; + unsigned char *start = section->start; + unsigned char *end = start + section->size; + + printf (_("Contents of the %s section:\n\n"), section->name); + + do + { + unsigned char *last; + + free_abbrevs (); + + last = start; + start = process_abbrev_section (start, end); + + if (first_abbrev == NULL) + continue; + + printf (_(" Number TAG (0x%lx)\n"), (long) (last - section->start)); + + for (entry = first_abbrev; entry; entry = entry->next) + { + abbrev_attr *attr; + + printf (" %ld %s [%s]\n", + entry->entry, + get_TAG_name (entry->tag), + entry->children ? _("has children") : _("no children")); + + for (attr = entry->first_attr; attr; attr = attr->next) + printf (" %-18s %s\n", + get_AT_name (attr->attribute), + get_FORM_name (attr->form)); + } + } + while (start); + + printf ("\n"); + + return 1; +} + +/* Display a location list from a normal (ie, non-dwo) .debug_loc section. */ + +static void +display_loc_list (struct dwarf_section *section, + unsigned char **start_ptr, + int debug_info_entry, + unsigned long offset, + unsigned long base_address, + int has_frame_base) +{ + unsigned char *start = *start_ptr; + unsigned char *section_end = section->start + section->size; + unsigned long cu_offset = debug_information [debug_info_entry].cu_offset; + unsigned int pointer_size = debug_information [debug_info_entry].pointer_size; + unsigned int offset_size = debug_information [debug_info_entry].offset_size; + int dwarf_version = debug_information [debug_info_entry].dwarf_version; + + dwarf_vma begin; + dwarf_vma end; + unsigned short length; + int need_frame_base; + + while (1) + { + if (start + 2 * pointer_size > section_end) + { + warn (_("Location list starting at offset 0x%lx is not terminated.\n"), + offset); + break; + } + + printf (" %8.8lx ", offset + (start - *start_ptr)); + + /* Note: we use sign extension here in order to be sure that we can detect + the -1 escape value. Sign extension into the top 32 bits of a 32-bit + address will not affect the values that we display since we always show + hex values, and always the bottom 32-bits. */ + SAFE_BYTE_GET_AND_INC (begin, start, pointer_size, section_end); + SAFE_BYTE_GET_AND_INC (end, start, pointer_size, section_end); + + if (begin == 0 && end == 0) + { + printf (_("<End of list>\n")); + break; + } + + /* Check base address specifiers. */ + if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1) + { + base_address = end; + print_dwarf_vma (begin, pointer_size); + print_dwarf_vma (end, pointer_size); + printf (_("(base address)\n")); + continue; + } + + if (start + 2 > section_end) + { + warn (_("Location list starting at offset 0x%lx is not terminated.\n"), + offset); + break; + } + + SAFE_BYTE_GET_AND_INC (length, start, 2, section_end); + + if (start + length > section_end) + { + warn (_("Location list starting at offset 0x%lx is not terminated.\n"), + offset); + break; + } + + print_dwarf_vma (begin + base_address, pointer_size); + print_dwarf_vma (end + base_address, pointer_size); + + putchar ('('); + need_frame_base = decode_location_expression (start, + pointer_size, + offset_size, + dwarf_version, + length, + cu_offset, section); + putchar (')'); + + if (need_frame_base && !has_frame_base) + printf (_(" [without DW_AT_frame_base]")); + + if (begin == end) + fputs (_(" (start == end)"), stdout); + else if (begin > end) + fputs (_(" (start > end)"), stdout); + + putchar ('\n'); + + start += length; + } + + *start_ptr = start; +} + +/* Print a .debug_addr table index in decimal, surrounded by square brackets, + right-adjusted in a field of length LEN, and followed by a space. */ + +static void +print_addr_index (unsigned int idx, unsigned int len) +{ + static char buf[15]; + snprintf (buf, sizeof (buf), "[%d]", idx); + printf ("%*s ", len, buf); +} + +/* Display a location list from a .dwo section. It uses address indexes rather + than embedded addresses. This code closely follows display_loc_list, but the + two are sufficiently different that combining things is very ugly. */ + +static void +display_loc_list_dwo (struct dwarf_section *section, + unsigned char **start_ptr, + int debug_info_entry, + unsigned long offset, + int has_frame_base) +{ + unsigned char *start = *start_ptr; + unsigned char *section_end = section->start + section->size; + unsigned long cu_offset = debug_information [debug_info_entry].cu_offset; + unsigned int pointer_size = debug_information [debug_info_entry].pointer_size; + unsigned int offset_size = debug_information [debug_info_entry].offset_size; + int dwarf_version = debug_information [debug_info_entry].dwarf_version; + int entry_type; + unsigned short length; + int need_frame_base; + unsigned int idx; + unsigned int bytes_read; + + while (1) + { + printf (" %8.8lx ", offset + (start - *start_ptr)); + + if (start >= section_end) + { + warn (_("Location list starting at offset 0x%lx is not terminated.\n"), + offset); + break; + } + + SAFE_BYTE_GET_AND_INC (entry_type, start, 1, section_end); + switch (entry_type) + { + case 0: /* A terminating entry. */ + *start_ptr = start; + printf (_("<End of list>\n")); + return; + case 1: /* A base-address entry. */ + idx = read_uleb128 (start, &bytes_read, section_end); + start += bytes_read; + print_addr_index (idx, 8); + printf (" "); + printf (_("(base address selection entry)\n")); + continue; + case 2: /* A start/end entry. */ + idx = read_uleb128 (start, &bytes_read, section_end); + start += bytes_read; + print_addr_index (idx, 8); + idx = read_uleb128 (start, &bytes_read, section_end); + start += bytes_read; + print_addr_index (idx, 8); + break; + case 3: /* A start/length entry. */ + idx = read_uleb128 (start, &bytes_read, section_end); + start += bytes_read; + print_addr_index (idx, 8); + SAFE_BYTE_GET_AND_INC (idx, start, 4, section_end); + printf ("%08x ", idx); + break; + case 4: /* An offset pair entry. */ + SAFE_BYTE_GET_AND_INC (idx, start, 4, section_end); + printf ("%08x ", idx); + SAFE_BYTE_GET_AND_INC (idx, start, 4, section_end); + printf ("%08x ", idx); + break; + default: + warn (_("Unknown location list entry type 0x%x.\n"), entry_type); + *start_ptr = start; + return; + } + + if (start + 2 > section_end) + { + warn (_("Location list starting at offset 0x%lx is not terminated.\n"), + offset); + break; + } + + SAFE_BYTE_GET_AND_INC (length, start, 2, section_end); + if (start + length > section_end) + { + warn (_("Location list starting at offset 0x%lx is not terminated.\n"), + offset); + break; + } + + putchar ('('); + need_frame_base = decode_location_expression (start, + pointer_size, + offset_size, + dwarf_version, + length, + cu_offset, section); + putchar (')'); + + if (need_frame_base && !has_frame_base) + printf (_(" [without DW_AT_frame_base]")); + + putchar ('\n'); + + start += length; + } + + *start_ptr = start; +} + +/* Sort array of indexes in ascending order of loc_offsets[idx]. */ + +static dwarf_vma *loc_offsets; + +static int +loc_offsets_compar (const void *ap, const void *bp) +{ + dwarf_vma a = loc_offsets[*(const unsigned int *) ap]; + dwarf_vma b = loc_offsets[*(const unsigned int *) bp]; + + return (a > b) - (b > a); +} + +static int +display_debug_loc (struct dwarf_section *section, void *file) +{ + unsigned char *start = section->start; + unsigned long bytes; + unsigned char *section_begin = start; + unsigned int num_loc_list = 0; + unsigned long last_offset = 0; + unsigned int first = 0; + unsigned int i; + unsigned int j; + unsigned int k; + int seen_first_offset = 0; + int locs_sorted = 1; + unsigned char *next; + unsigned int *array = NULL; + const char *suffix = strrchr (section->name, '.'); + int is_dwo = 0; + + if (suffix && strcmp (suffix, ".dwo") == 0) + is_dwo = 1; + + bytes = section->size; + + if (bytes == 0) + { + printf (_("\nThe %s section is empty.\n"), section->name); + return 0; + } + + if (load_debug_info (file) == 0) + { + warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), + section->name); + return 0; + } + + /* Check the order of location list in .debug_info section. If + offsets of location lists are in the ascending order, we can + use `debug_information' directly. */ + for (i = 0; i < num_debug_info_entries; i++) + { + unsigned int num; + + num = debug_information [i].num_loc_offsets; + if (num > num_loc_list) + num_loc_list = num; + + /* Check if we can use `debug_information' directly. */ + if (locs_sorted && num != 0) + { + if (!seen_first_offset) + { + /* This is the first location list. */ + last_offset = debug_information [i].loc_offsets [0]; + first = i; + seen_first_offset = 1; + j = 1; + } + else + j = 0; + + for (; j < num; j++) + { + if (last_offset > + debug_information [i].loc_offsets [j]) + { + locs_sorted = 0; + break; + } + last_offset = debug_information [i].loc_offsets [j]; + } + } + } + + if (!seen_first_offset) + error (_("No location lists in .debug_info section!\n")); + + /* DWARF sections under Mach-O have non-zero addresses. */ + if (debug_information [first].num_loc_offsets > 0 + && debug_information [first].loc_offsets [0] != section->address) + warn (_("Location lists in %s section start at 0x%s\n"), + section->name, + dwarf_vmatoa ("x", debug_information [first].loc_offsets [0])); + + if (!locs_sorted) + array = (unsigned int *) xcmalloc (num_loc_list, sizeof (unsigned int)); + printf (_("Contents of the %s section:\n\n"), section->name); + printf (_(" Offset Begin End Expression\n")); + + seen_first_offset = 0; + for (i = first; i < num_debug_info_entries; i++) + { + unsigned long offset; + unsigned long base_address; + int has_frame_base; + + if (!locs_sorted) + { + for (k = 0; k < debug_information [i].num_loc_offsets; k++) + array[k] = k; + loc_offsets = debug_information [i].loc_offsets; + qsort (array, debug_information [i].num_loc_offsets, + sizeof (*array), loc_offsets_compar); + } + + for (k = 0; k < debug_information [i].num_loc_offsets; k++) + { + j = locs_sorted ? k : array[k]; + if (k + && debug_information [i].loc_offsets [locs_sorted + ? k - 1 : array [k - 1]] + == debug_information [i].loc_offsets [j]) + continue; + has_frame_base = debug_information [i].have_frame_base [j]; + /* DWARF sections under Mach-O have non-zero addresses. */ + offset = debug_information [i].loc_offsets [j] - section->address; + next = section_begin + offset; + base_address = debug_information [i].base_address; + + if (!seen_first_offset) + seen_first_offset = 1; + else + { + if (start < next) + warn (_("There is a hole [0x%lx - 0x%lx] in .debug_loc section.\n"), + (unsigned long) (start - section_begin), + (unsigned long) (next - section_begin)); + else if (start > next) + warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_loc section.\n"), + (unsigned long) (start - section_begin), + (unsigned long) (next - section_begin)); + } + start = next; + + if (offset >= bytes) + { + warn (_("Offset 0x%lx is bigger than .debug_loc section size.\n"), + offset); + continue; + } + + if (is_dwo) + display_loc_list_dwo (section, &start, i, offset, has_frame_base); + else + display_loc_list (section, &start, i, offset, base_address, + has_frame_base); + } + } + + if (start < section->start + section->size) + warn (_("There are %ld unused bytes at the end of section %s\n"), + (long) (section->start + section->size - start), section->name); + putchar ('\n'); + free (array); + return 1; +} + +static int +display_debug_str (struct dwarf_section *section, + void *file ATTRIBUTE_UNUSED) +{ + unsigned char *start = section->start; + unsigned long bytes = section->size; + dwarf_vma addr = section->address; + + if (bytes == 0) + { + printf (_("\nThe %s section is empty.\n"), section->name); + return 0; + } + + printf (_("Contents of the %s section:\n\n"), section->name); + + while (bytes) + { + int j; + int k; + int lbytes; + + lbytes = (bytes > 16 ? 16 : bytes); + + printf (" 0x%8.8lx ", (unsigned long) addr); + + for (j = 0; j < 16; j++) + { + if (j < lbytes) + printf ("%2.2x", start[j]); + else + printf (" "); + + if ((j & 3) == 3) + printf (" "); + } + + for (j = 0; j < lbytes; j++) + { + k = start[j]; + if (k >= ' ' && k < 0x80) + printf ("%c", k); + else + printf ("."); + } + + putchar ('\n'); + + start += lbytes; + addr += lbytes; + bytes -= lbytes; + } + + putchar ('\n'); + + return 1; +} + +static int +display_debug_info (struct dwarf_section *section, void *file) +{ + return process_debug_info (section, file, section->abbrev_sec, 0, 0); +} + +static int +display_debug_types (struct dwarf_section *section, void *file) +{ + return process_debug_info (section, file, section->abbrev_sec, 0, 1); +} + +static int +display_trace_info (struct dwarf_section *section, void *file) +{ + return process_debug_info (section, file, section->abbrev_sec, 0, 0); +} + +static int +display_debug_aranges (struct dwarf_section *section, + void *file ATTRIBUTE_UNUSED) +{ + unsigned char *start = section->start; + unsigned char *end = start + section->size; + + printf (_("Contents of the %s section:\n\n"), section->name); + + /* It does not matter if this load fails, + we test for that later on. */ + load_debug_info (file); + + while (start < end) + { + unsigned char *hdrptr; + DWARF2_Internal_ARange arange; + unsigned char *addr_ranges; + dwarf_vma length; + dwarf_vma address; + unsigned char address_size; + int excess; + unsigned int offset_size; + unsigned int initial_length_size; + + hdrptr = start; + + SAFE_BYTE_GET_AND_INC (arange.ar_length, hdrptr, 4, end); + if (arange.ar_length == 0xffffffff) + { + SAFE_BYTE_GET_AND_INC (arange.ar_length, hdrptr, 8, end); + offset_size = 8; + initial_length_size = 12; + } + else + { + offset_size = 4; + initial_length_size = 4; + } + + SAFE_BYTE_GET_AND_INC (arange.ar_version, hdrptr, 2, end); + SAFE_BYTE_GET_AND_INC (arange.ar_info_offset, hdrptr, offset_size, end); + + if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE + && num_debug_info_entries > 0 + && find_debug_info_for_offset (arange.ar_info_offset) == NULL) + warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"), + (unsigned long) arange.ar_info_offset, section->name); + + SAFE_BYTE_GET_AND_INC (arange.ar_pointer_size, hdrptr, 1, end); + SAFE_BYTE_GET_AND_INC (arange.ar_segment_size, hdrptr, 1, end); + + if (arange.ar_version != 2 && arange.ar_version != 3) + { + warn (_("Only DWARF 2 and 3 aranges are currently supported.\n")); + break; + } + + printf (_(" Length: %ld\n"), + (long) arange.ar_length); + printf (_(" Version: %d\n"), arange.ar_version); + printf (_(" Offset into .debug_info: 0x%lx\n"), + (unsigned long) arange.ar_info_offset); + printf (_(" Pointer Size: %d\n"), arange.ar_pointer_size); + printf (_(" Segment Size: %d\n"), arange.ar_segment_size); + + address_size = arange.ar_pointer_size + arange.ar_segment_size; + + if (address_size == 0) + { + error (_("Invalid address size in %s section!\n"), + section->name); + break; + } + + /* The DWARF spec does not require that the address size be a power + of two, but we do. This will have to change if we ever encounter + an uneven architecture. */ + if ((address_size & (address_size - 1)) != 0) + { + warn (_("Pointer size + Segment size is not a power of two.\n")); + break; + } + + if (address_size > 4) + printf (_("\n Address Length\n")); + else + printf (_("\n Address Length\n")); + + addr_ranges = hdrptr; + + /* Must pad to an alignment boundary that is twice the address size. */ + excess = (hdrptr - start) % (2 * address_size); + if (excess) + addr_ranges += (2 * address_size) - excess; + + start += arange.ar_length + initial_length_size; + + while (addr_ranges + 2 * address_size <= start) + { + SAFE_BYTE_GET_AND_INC (address, addr_ranges, address_size, end); + SAFE_BYTE_GET_AND_INC (length, addr_ranges, address_size, end); + + printf (" "); + print_dwarf_vma (address, address_size); + print_dwarf_vma (length, address_size); + putchar ('\n'); + } + } + + printf ("\n"); + + return 1; +} + +/* Comparison function for qsort. */ +static int +comp_addr_base (const void * v0, const void * v1) +{ + debug_info * info0 = (debug_info *) v0; + debug_info * info1 = (debug_info *) v1; + return info0->addr_base - info1->addr_base; +} + +/* Display the debug_addr section. */ +static int +display_debug_addr (struct dwarf_section *section, + void *file) +{ + debug_info **debug_addr_info; + unsigned char *entry; + unsigned char *end; + unsigned int i; + unsigned int count; + + if (section->size == 0) + { + printf (_("\nThe %s section is empty.\n"), section->name); + return 0; + } + + if (load_debug_info (file) == 0) + { + warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), + section->name); + return 0; + } + + printf (_("Contents of the %s section:\n\n"), section->name); + + debug_addr_info = (debug_info **) xmalloc ((num_debug_info_entries + 1) + * sizeof (debug_info *)); + + count = 0; + for (i = 0; i < num_debug_info_entries; i++) + { + if (debug_information [i].addr_base != DEBUG_INFO_UNAVAILABLE) + debug_addr_info [count++] = &debug_information [i]; + } + + /* Add a sentinel to make iteration convenient. */ + debug_addr_info [count] = (debug_info *) xmalloc (sizeof (debug_info)); + debug_addr_info [count]->addr_base = section->size; + + qsort (debug_addr_info, count, sizeof (debug_info *), comp_addr_base); + for (i = 0; i < count; i++) + { + unsigned int idx; + unsigned int address_size = debug_addr_info [i]->pointer_size; + + printf (_(" For compilation unit at offset 0x%s:\n"), + dwarf_vmatoa ("x", debug_addr_info [i]->cu_offset)); + + printf (_("\tIndex\tAddress\n")); + entry = section->start + debug_addr_info [i]->addr_base; + end = section->start + debug_addr_info [i + 1]->addr_base; + idx = 0; + while (entry < end) + { + dwarf_vma base = byte_get (entry, address_size); + printf (_("\t%d:\t"), idx); + print_dwarf_vma (base, address_size); + printf ("\n"); + entry += address_size; + idx++; + } + } + printf ("\n"); + + free (debug_addr_info); + return 1; +} + +/* Display the .debug_str_offsets and .debug_str_offsets.dwo sections. */ +static int +display_debug_str_offsets (struct dwarf_section *section, + void *file ATTRIBUTE_UNUSED) +{ + if (section->size == 0) + { + printf (_("\nThe %s section is empty.\n"), section->name); + return 0; + } + /* TODO: Dump the contents. This is made somewhat difficult by not knowing + what the offset size is for this section. */ + return 1; +} + +/* Each debug_information[x].range_lists[y] gets this representation for + sorting purposes. */ + +struct range_entry +{ + /* The debug_information[x].range_lists[y] value. */ + unsigned long ranges_offset; + + /* Original debug_information to find parameters of the data. */ + debug_info *debug_info_p; +}; + +/* Sort struct range_entry in ascending order of its RANGES_OFFSET. */ + +static int +range_entry_compar (const void *ap, const void *bp) +{ + const struct range_entry *a_re = (const struct range_entry *) ap; + const struct range_entry *b_re = (const struct range_entry *) bp; + const unsigned long a = a_re->ranges_offset; + const unsigned long b = b_re->ranges_offset; + + return (a > b) - (b > a); +} + +static int +display_debug_ranges (struct dwarf_section *section, + void *file ATTRIBUTE_UNUSED) +{ + unsigned char *start = section->start; + unsigned char *last_start = start; + unsigned long bytes = section->size; + unsigned char *section_begin = start; + unsigned char *finish = start + bytes; + unsigned int num_range_list, i; + struct range_entry *range_entries, *range_entry_fill; + + if (bytes == 0) + { + printf (_("\nThe %s section is empty.\n"), section->name); + return 0; + } + + if (load_debug_info (file) == 0) + { + warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), + section->name); + return 0; + } + + num_range_list = 0; + for (i = 0; i < num_debug_info_entries; i++) + num_range_list += debug_information [i].num_range_lists; + + if (num_range_list == 0) + { + /* This can happen when the file was compiled with -gsplit-debug + which removes references to range lists from the primary .o file. */ + printf (_("No range lists in .debug_info section.\n")); + return 1; + } + + range_entries = (struct range_entry *) + xmalloc (sizeof (*range_entries) * num_range_list); + range_entry_fill = range_entries; + + for (i = 0; i < num_debug_info_entries; i++) + { + debug_info *debug_info_p = &debug_information[i]; + unsigned int j; + + for (j = 0; j < debug_info_p->num_range_lists; j++) + { + range_entry_fill->ranges_offset = debug_info_p->range_lists[j]; + range_entry_fill->debug_info_p = debug_info_p; + range_entry_fill++; + } + } + + qsort (range_entries, num_range_list, sizeof (*range_entries), + range_entry_compar); + + /* DWARF sections under Mach-O have non-zero addresses. */ + if (dwarf_check != 0 && range_entries[0].ranges_offset != section->address) + warn (_("Range lists in %s section start at 0x%lx\n"), + section->name, range_entries[0].ranges_offset); + + printf (_("Contents of the %s section:\n\n"), section->name); + printf (_(" Offset Begin End\n")); + + for (i = 0; i < num_range_list; i++) + { + struct range_entry *range_entry = &range_entries[i]; + debug_info *debug_info_p = range_entry->debug_info_p; + unsigned int pointer_size; + unsigned long offset; + unsigned char *next; + unsigned long base_address; + + pointer_size = debug_info_p->pointer_size; + + /* DWARF sections under Mach-O have non-zero addresses. */ + offset = range_entry->ranges_offset - section->address; + next = section_begin + offset; + base_address = debug_info_p->base_address; + + if (dwarf_check != 0 && i > 0) + { + if (start < next) + warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"), + (unsigned long) (start - section_begin), + (unsigned long) (next - section_begin), section->name); + else if (start > next) + { + if (next == last_start) + continue; + warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"), + (unsigned long) (start - section_begin), + (unsigned long) (next - section_begin), section->name); + } + } + start = next; + last_start = next; + + while (start < finish) + { + dwarf_vma begin; + dwarf_vma end; + + /* Note: we use sign extension here in order to be sure that + we can detect the -1 escape value. Sign extension into the + top 32 bits of a 32-bit address will not affect the values + that we display since we always show hex values, and always + the bottom 32-bits. */ + SAFE_BYTE_GET_AND_INC (begin, start, pointer_size, finish); + if (start >= finish) + break; + SAFE_SIGNED_BYTE_GET_AND_INC (end, start, pointer_size, finish); + + printf (" %8.8lx ", offset); + + if (begin == 0 && end == 0) + { + printf (_("<End of list>\n")); + break; + } + + /* Check base address specifiers. */ + if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1) + { + base_address = end; + print_dwarf_vma (begin, pointer_size); + print_dwarf_vma (end, pointer_size); + printf ("(base address)\n"); + continue; + } + + print_dwarf_vma (begin + base_address, pointer_size); + print_dwarf_vma (end + base_address, pointer_size); + + if (begin == end) + fputs (_("(start == end)"), stdout); + else if (begin > end) + fputs (_("(start > end)"), stdout); + + putchar ('\n'); + } + } + putchar ('\n'); + + free (range_entries); + + return 1; +} + +typedef struct Frame_Chunk +{ + struct Frame_Chunk *next; + unsigned char *chunk_start; + int ncols; + /* DW_CFA_{undefined,same_value,offset,register,unreferenced} */ + short int *col_type; + int *col_offset; + char *augmentation; + unsigned int code_factor; + int data_factor; + dwarf_vma pc_begin; + dwarf_vma pc_range; + int cfa_reg; + int cfa_offset; + int ra; + unsigned char fde_encoding; + unsigned char cfa_exp; + unsigned char ptr_size; + unsigned char segment_size; +} +Frame_Chunk; + +static const char *const *dwarf_regnames; +static unsigned int dwarf_regnames_count; + +/* A marker for a col_type that means this column was never referenced + in the frame info. */ +#define DW_CFA_unreferenced (-1) + +/* Return 0 if not more space is needed, 1 if more space is needed, + -1 for invalid reg. */ + +static int +frame_need_space (Frame_Chunk *fc, unsigned int reg) +{ + int prev = fc->ncols; + + if (reg < (unsigned int) fc->ncols) + return 0; + + if (dwarf_regnames_count + && reg > dwarf_regnames_count) + return -1; + + fc->ncols = reg + 1; + fc->col_type = (short int *) xcrealloc (fc->col_type, fc->ncols, + sizeof (short int)); + fc->col_offset = (int *) xcrealloc (fc->col_offset, fc->ncols, sizeof (int)); + + while (prev < fc->ncols) + { + fc->col_type[prev] = DW_CFA_unreferenced; + fc->col_offset[prev] = 0; + prev++; + } + return 1; +} + +static const char *const dwarf_regnames_i386[] = +{ + "eax", "ecx", "edx", "ebx", /* 0 - 3 */ + "esp", "ebp", "esi", "edi", /* 4 - 7 */ + "eip", "eflags", NULL, /* 8 - 10 */ + "st0", "st1", "st2", "st3", /* 11 - 14 */ + "st4", "st5", "st6", "st7", /* 15 - 18 */ + NULL, NULL, /* 19 - 20 */ + "xmm0", "xmm1", "xmm2", "xmm3", /* 21 - 24 */ + "xmm4", "xmm5", "xmm6", "xmm7", /* 25 - 28 */ + "mm0", "mm1", "mm2", "mm3", /* 29 - 32 */ + "mm4", "mm5", "mm6", "mm7", /* 33 - 36 */ + "fcw", "fsw", "mxcsr", /* 37 - 39 */ + "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, /* 40 - 47 */ + "tr", "ldtr", /* 48 - 49 */ + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 50 - 57 */ + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 58 - 65 */ + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 66 - 73 */ + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 74 - 81 */ + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 82 - 89 */ + NULL, NULL, NULL, /* 90 - 92 */ + "k0", "k1", "k2", "k3", "k4", "k5", "k6", "k7" /* 93 - 100 */ +}; + +void +init_dwarf_regnames_i386 (void) +{ + dwarf_regnames = dwarf_regnames_i386; + dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_i386); +} + +static const char *const dwarf_regnames_x86_64[] = +{ + "rax", "rdx", "rcx", "rbx", + "rsi", "rdi", "rbp", "rsp", + "r8", "r9", "r10", "r11", + "r12", "r13", "r14", "r15", + "rip", + "xmm0", "xmm1", "xmm2", "xmm3", + "xmm4", "xmm5", "xmm6", "xmm7", + "xmm8", "xmm9", "xmm10", "xmm11", + "xmm12", "xmm13", "xmm14", "xmm15", + "st0", "st1", "st2", "st3", + "st4", "st5", "st6", "st7", + "mm0", "mm1", "mm2", "mm3", + "mm4", "mm5", "mm6", "mm7", + "rflags", + "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, + "fs.base", "gs.base", NULL, NULL, + "tr", "ldtr", + "mxcsr", "fcw", "fsw", + "xmm16", "xmm17", "xmm18", "xmm19", + "xmm20", "xmm21", "xmm22", "xmm23", + "xmm24", "xmm25", "xmm26", "xmm27", + "xmm28", "xmm29", "xmm30", "xmm31", + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 83 - 90 */ + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 91 - 98 */ + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 99 - 106 */ + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 107 - 114 */ + NULL, NULL, NULL, /* 115 - 117 */ + "k0", "k1", "k2", "k3", "k4", "k5", "k6", "k7" +}; + +void +init_dwarf_regnames_x86_64 (void) +{ + dwarf_regnames = dwarf_regnames_x86_64; + dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_x86_64); +} + +void +init_dwarf_regnames (unsigned int e_machine) +{ + switch (e_machine) + { + case EM_386: + case EM_486: + init_dwarf_regnames_i386 (); + break; + + case EM_X86_64: + case EM_L1OM: + case EM_K1OM: + init_dwarf_regnames_x86_64 (); + break; + + default: + break; + } +} + +static const char * +regname (unsigned int regno, int row) +{ + static char reg[64]; + if (dwarf_regnames + && regno < dwarf_regnames_count + && dwarf_regnames [regno] != NULL) + { + if (row) + return dwarf_regnames [regno]; + snprintf (reg, sizeof (reg), "r%d (%s)", regno, + dwarf_regnames [regno]); + } + else + snprintf (reg, sizeof (reg), "r%d", regno); + return reg; +} + +static void +frame_display_row (Frame_Chunk *fc, int *need_col_headers, int *max_regs) +{ + int r; + char tmp[100]; + + if (*max_regs < fc->ncols) + *max_regs = fc->ncols; + + if (*need_col_headers) + { + static const char *sloc = " LOC"; + + *need_col_headers = 0; + + printf ("%-*s CFA ", eh_addr_size * 2, sloc); + + for (r = 0; r < *max_regs; r++) + if (fc->col_type[r] != DW_CFA_unreferenced) + { + if (r == fc->ra) + printf ("ra "); + else + printf ("%-5s ", regname (r, 1)); + } + + printf ("\n"); + } + + print_dwarf_vma (fc->pc_begin, eh_addr_size); + if (fc->cfa_exp) + strcpy (tmp, "exp"); + else + sprintf (tmp, "%s%+d", regname (fc->cfa_reg, 1), fc->cfa_offset); + printf ("%-8s ", tmp); + + for (r = 0; r < fc->ncols; r++) + { + if (fc->col_type[r] != DW_CFA_unreferenced) + { + switch (fc->col_type[r]) + { + case DW_CFA_undefined: + strcpy (tmp, "u"); + break; + case DW_CFA_same_value: + strcpy (tmp, "s"); + break; + case DW_CFA_offset: + sprintf (tmp, "c%+d", fc->col_offset[r]); + break; + case DW_CFA_val_offset: + sprintf (tmp, "v%+d", fc->col_offset[r]); + break; + case DW_CFA_register: + sprintf (tmp, "%s", regname (fc->col_offset[r], 0)); + break; + case DW_CFA_expression: + strcpy (tmp, "exp"); + break; + case DW_CFA_val_expression: + strcpy (tmp, "vexp"); + break; + default: + strcpy (tmp, "n/a"); + break; + } + printf ("%-5s ", tmp); + } + } + printf ("\n"); +} + +#define GET(VAR, N) SAFE_BYTE_GET_AND_INC (VAR, start, N, end); +#define LEB() read_uleb128 (start, & length_return, end); start += length_return +#define SLEB() read_sleb128 (start, & length_return, end); start += length_return + +static int +display_debug_frames (struct dwarf_section *section, + void *file ATTRIBUTE_UNUSED) +{ + unsigned char *start = section->start; + unsigned char *end = start + section->size; + unsigned char *section_start = start; + Frame_Chunk *chunks = 0; + Frame_Chunk *remembered_state = 0; + Frame_Chunk *rs; + int is_eh = strcmp (section->name, ".eh_frame") == 0; + unsigned int length_return; + int max_regs = 0; + const char *bad_reg = _("bad register: "); + int saved_eh_addr_size = eh_addr_size; + + printf (_("Contents of the %s section:\n"), section->name); + + while (start < end) + { + unsigned char *saved_start; + unsigned char *block_end; + dwarf_vma length; + dwarf_vma cie_id; + Frame_Chunk *fc; + Frame_Chunk *cie; + int need_col_headers = 1; + unsigned char *augmentation_data = NULL; + unsigned long augmentation_data_len = 0; + unsigned int encoded_ptr_size = saved_eh_addr_size; + unsigned int offset_size; + unsigned int initial_length_size; + + saved_start = start; + + SAFE_BYTE_GET_AND_INC (length, start, 4, end); + if (length == 0) + { + printf ("\n%08lx ZERO terminator\n\n", + (unsigned long)(saved_start - section_start)); + continue; + } + + if (length == 0xffffffff) + { + SAFE_BYTE_GET_AND_INC (length, start, 8, end); + offset_size = 8; + initial_length_size = 12; + } + else + { + offset_size = 4; + initial_length_size = 4; + } + + block_end = saved_start + length + initial_length_size; + if (block_end > end) + { + warn ("Invalid length 0x%s in FDE at %#08lx\n", + dwarf_vmatoa_1 (NULL, length, offset_size), + (unsigned long) (saved_start - section_start)); + block_end = end; + } + + SAFE_BYTE_GET_AND_INC (cie_id, start, offset_size, end); + + if (is_eh ? (cie_id == 0) : ((offset_size == 4 && cie_id == DW_CIE_ID) + || (offset_size == 8 && cie_id == DW64_CIE_ID))) + { + int version; + + fc = (Frame_Chunk *) xmalloc (sizeof (Frame_Chunk)); + memset (fc, 0, sizeof (Frame_Chunk)); + + fc->next = chunks; + chunks = fc; + fc->chunk_start = saved_start; + fc->ncols = 0; + fc->col_type = (short int *) xmalloc (sizeof (short int)); + fc->col_offset = (int *) xmalloc (sizeof (int)); + frame_need_space (fc, max_regs - 1); + + version = *start++; + + fc->augmentation = (char *) start; + start = (unsigned char *) strchr ((char *) start, '\0') + 1; + + if (strcmp (fc->augmentation, "eh") == 0) + start += eh_addr_size; + + if (version >= 4) + { + GET (fc->ptr_size, 1); + GET (fc->segment_size, 1); + eh_addr_size = fc->ptr_size; + } + else + { + fc->ptr_size = eh_addr_size; + fc->segment_size = 0; + } + fc->code_factor = LEB (); + fc->data_factor = SLEB (); + if (version == 1) + { + GET (fc->ra, 1); + } + else + { + fc->ra = LEB (); + } + + if (fc->augmentation[0] == 'z') + { + augmentation_data_len = LEB (); + augmentation_data = start; + start += augmentation_data_len; + } + cie = fc; + + printf ("\n%08lx ", (unsigned long) (saved_start - section_start)); + print_dwarf_vma (length, fc->ptr_size); + print_dwarf_vma (cie_id, offset_size); + + if (do_debug_frames_interp) + { + printf ("CIE \"%s\" cf=%d df=%d ra=%d\n", fc->augmentation, + fc->code_factor, fc->data_factor, fc->ra); + } + else + { + printf ("CIE\n"); + printf (" Version: %d\n", version); + printf (" Augmentation: \"%s\"\n", fc->augmentation); + if (version >= 4) + { + printf (" Pointer Size: %u\n", fc->ptr_size); + printf (" Segment Size: %u\n", fc->segment_size); + } + printf (" Code alignment factor: %u\n", fc->code_factor); + printf (" Data alignment factor: %d\n", fc->data_factor); + printf (" Return address column: %d\n", fc->ra); + + if (augmentation_data_len) + { + unsigned long i; + printf (" Augmentation data: "); + for (i = 0; i < augmentation_data_len; ++i) + printf (" %02x", augmentation_data[i]); + putchar ('\n'); + } + putchar ('\n'); + } + + if (augmentation_data_len) + { + unsigned char *p, *q; + p = (unsigned char *) fc->augmentation + 1; + q = augmentation_data; + + while (1) + { + if (*p == 'L') + q++; + else if (*p == 'P') + q += 1 + size_of_encoded_value (*q); + else if (*p == 'R') + fc->fde_encoding = *q++; + else if (*p == 'S') + ; + else + break; + p++; + } + + if (fc->fde_encoding) + encoded_ptr_size = size_of_encoded_value (fc->fde_encoding); + } + + frame_need_space (fc, fc->ra); + } + else + { + unsigned char *look_for; + static Frame_Chunk fde_fc; + unsigned long segment_selector; + + fc = & fde_fc; + memset (fc, 0, sizeof (Frame_Chunk)); + + look_for = is_eh ? start - 4 - cie_id : section_start + cie_id; + + for (cie = chunks; cie ; cie = cie->next) + if (cie->chunk_start == look_for) + break; + + if (!cie) + { + warn ("Invalid CIE pointer 0x%s in FDE at %#08lx\n", + dwarf_vmatoa_1 (NULL, cie_id, offset_size), + (unsigned long) (saved_start - section_start)); + fc->ncols = 0; + fc->col_type = (short int *) xmalloc (sizeof (short int)); + fc->col_offset = (int *) xmalloc (sizeof (int)); + frame_need_space (fc, max_regs - 1); + cie = fc; + fc->augmentation = ""; + fc->fde_encoding = 0; + fc->ptr_size = eh_addr_size; + fc->segment_size = 0; + } + else + { + fc->ncols = cie->ncols; + fc->col_type = (short int *) xcmalloc (fc->ncols, sizeof (short int)); + fc->col_offset = (int *) xcmalloc (fc->ncols, sizeof (int)); + memcpy (fc->col_type, cie->col_type, fc->ncols * sizeof (short int)); + memcpy (fc->col_offset, cie->col_offset, fc->ncols * sizeof (int)); + fc->augmentation = cie->augmentation; + fc->ptr_size = cie->ptr_size; + eh_addr_size = cie->ptr_size; + fc->segment_size = cie->segment_size; + fc->code_factor = cie->code_factor; + fc->data_factor = cie->data_factor; + fc->cfa_reg = cie->cfa_reg; + fc->cfa_offset = cie->cfa_offset; + fc->ra = cie->ra; + frame_need_space (fc, max_regs - 1); + fc->fde_encoding = cie->fde_encoding; + } + + if (fc->fde_encoding) + encoded_ptr_size = size_of_encoded_value (fc->fde_encoding); + + segment_selector = 0; + if (fc->segment_size) + { + SAFE_BYTE_GET_AND_INC (segment_selector, start, fc->segment_size, end); + } + fc->pc_begin = get_encoded_value (start, fc->fde_encoding, section); + start += encoded_ptr_size; + + /* FIXME: It appears that sometimes the final pc_range value is + encoded in less than encoded_ptr_size bytes. See the x86_64 + run of the "objcopy on compressed debug sections" test for an + example of this. */ + SAFE_BYTE_GET_AND_INC (fc->pc_range, start, encoded_ptr_size, end); + + if (cie->augmentation[0] == 'z') + { + augmentation_data_len = LEB (); + augmentation_data = start; + start += augmentation_data_len; + } + + printf ("\n%08lx %s %s FDE cie=%08lx pc=", + (unsigned long)(saved_start - section_start), + dwarf_vmatoa_1 (NULL, length, fc->ptr_size), + dwarf_vmatoa_1 (NULL, cie_id, offset_size), + (unsigned long)(cie->chunk_start - section_start)); + + if (fc->segment_size) + printf ("%04lx:", segment_selector); + + printf ("%s..%s\n", + dwarf_vmatoa_1 (NULL, fc->pc_begin, fc->ptr_size), + dwarf_vmatoa_1 (NULL, fc->pc_begin + fc->pc_range, fc->ptr_size)); + + if (! do_debug_frames_interp && augmentation_data_len) + { + unsigned long i; + + printf (" Augmentation data: "); + for (i = 0; i < augmentation_data_len; ++i) + printf (" %02x", augmentation_data[i]); + putchar ('\n'); + putchar ('\n'); + } + } + + /* At this point, fc is the current chunk, cie (if any) is set, and + we're about to interpret instructions for the chunk. */ + /* ??? At present we need to do this always, since this sizes the + fc->col_type and fc->col_offset arrays, which we write into always. + We should probably split the interpreted and non-interpreted bits + into two different routines, since there's so much that doesn't + really overlap between them. */ + if (1 || do_debug_frames_interp) + { + /* Start by making a pass over the chunk, allocating storage + and taking note of what registers are used. */ + unsigned char *tmp = start; + + while (start < block_end) + { + unsigned op, opa; + unsigned long reg, temp; + + op = *start++; + opa = op & 0x3f; + if (op & 0xc0) + op &= 0xc0; + + /* Warning: if you add any more cases to this switch, be + sure to add them to the corresponding switch below. */ + switch (op) + { + case DW_CFA_advance_loc: + break; + case DW_CFA_offset: + LEB (); + if (frame_need_space (fc, opa) >= 0) + fc->col_type[opa] = DW_CFA_undefined; + break; + case DW_CFA_restore: + if (frame_need_space (fc, opa) >= 0) + fc->col_type[opa] = DW_CFA_undefined; + break; + case DW_CFA_set_loc: + start += encoded_ptr_size; + break; + case DW_CFA_advance_loc1: + start += 1; + break; + case DW_CFA_advance_loc2: + start += 2; + break; + case DW_CFA_advance_loc4: + start += 4; + break; + case DW_CFA_offset_extended: + case DW_CFA_val_offset: + reg = LEB (); LEB (); + if (frame_need_space (fc, reg) >= 0) + fc->col_type[reg] = DW_CFA_undefined; + break; + case DW_CFA_restore_extended: + reg = LEB (); + frame_need_space (fc, reg); + if (frame_need_space (fc, reg) >= 0) + fc->col_type[reg] = DW_CFA_undefined; + break; + case DW_CFA_undefined: + reg = LEB (); + if (frame_need_space (fc, reg) >= 0) + fc->col_type[reg] = DW_CFA_undefined; + break; + case DW_CFA_same_value: + reg = LEB (); + if (frame_need_space (fc, reg) >= 0) + fc->col_type[reg] = DW_CFA_undefined; + break; + case DW_CFA_register: + reg = LEB (); LEB (); + if (frame_need_space (fc, reg) >= 0) + fc->col_type[reg] = DW_CFA_undefined; + break; + case DW_CFA_def_cfa: + LEB (); LEB (); + break; + case DW_CFA_def_cfa_register: + LEB (); + break; + case DW_CFA_def_cfa_offset: + LEB (); + break; + case DW_CFA_def_cfa_expression: + temp = LEB (); + start += temp; + break; + case DW_CFA_expression: + case DW_CFA_val_expression: + reg = LEB (); + temp = LEB (); + start += temp; + if (frame_need_space (fc, reg) >= 0) + fc->col_type[reg] = DW_CFA_undefined; + break; + case DW_CFA_offset_extended_sf: + case DW_CFA_val_offset_sf: + reg = LEB (); SLEB (); + if (frame_need_space (fc, reg) >= 0) + fc->col_type[reg] = DW_CFA_undefined; + break; + case DW_CFA_def_cfa_sf: + LEB (); SLEB (); + break; + case DW_CFA_def_cfa_offset_sf: + SLEB (); + break; + case DW_CFA_MIPS_advance_loc8: + start += 8; + break; + case DW_CFA_GNU_args_size: + LEB (); + break; + case DW_CFA_GNU_negative_offset_extended: + reg = LEB (); LEB (); + if (frame_need_space (fc, reg) >= 0) + fc->col_type[reg] = DW_CFA_undefined; + break; + default: + break; + } + } + start = tmp; + } + + /* Now we know what registers are used, make a second pass over + the chunk, this time actually printing out the info. */ + + while (start < block_end) + { + unsigned op, opa; + unsigned long ul, reg, roffs; + long l; + dwarf_vma ofs; + dwarf_vma vma; + const char *reg_prefix = ""; + + op = *start++; + opa = op & 0x3f; + if (op & 0xc0) + op &= 0xc0; + + /* Warning: if you add any more cases to this switch, be + sure to add them to the corresponding switch above. */ + switch (op) + { + case DW_CFA_advance_loc: + if (do_debug_frames_interp) + frame_display_row (fc, &need_col_headers, &max_regs); + else + printf (" DW_CFA_advance_loc: %d to %s\n", + opa * fc->code_factor, + dwarf_vmatoa_1 (NULL, + fc->pc_begin + opa * fc->code_factor, + fc->ptr_size)); + fc->pc_begin += opa * fc->code_factor; + break; + + case DW_CFA_offset: + roffs = LEB (); + if (opa >= (unsigned int) fc->ncols) + reg_prefix = bad_reg; + if (! do_debug_frames_interp || *reg_prefix != '\0') + printf (" DW_CFA_offset: %s%s at cfa%+ld\n", + reg_prefix, regname (opa, 0), + roffs * fc->data_factor); + if (*reg_prefix == '\0') + { + fc->col_type[opa] = DW_CFA_offset; + fc->col_offset[opa] = roffs * fc->data_factor; + } + break; + + case DW_CFA_restore: + if (opa >= (unsigned int) cie->ncols + || opa >= (unsigned int) fc->ncols) + reg_prefix = bad_reg; + if (! do_debug_frames_interp || *reg_prefix != '\0') + printf (" DW_CFA_restore: %s%s\n", + reg_prefix, regname (opa, 0)); + if (*reg_prefix == '\0') + { + fc->col_type[opa] = cie->col_type[opa]; + fc->col_offset[opa] = cie->col_offset[opa]; + if (do_debug_frames_interp + && fc->col_type[opa] == DW_CFA_unreferenced) + fc->col_type[opa] = DW_CFA_undefined; + } + break; + + case DW_CFA_set_loc: + vma = get_encoded_value (start, fc->fde_encoding, section); + start += encoded_ptr_size; + if (do_debug_frames_interp) + frame_display_row (fc, &need_col_headers, &max_regs); + else + printf (" DW_CFA_set_loc: %s\n", + dwarf_vmatoa_1 (NULL, vma, fc->ptr_size)); + fc->pc_begin = vma; + break; + + case DW_CFA_advance_loc1: + SAFE_BYTE_GET_AND_INC (ofs, start, 1, end); + if (do_debug_frames_interp) + frame_display_row (fc, &need_col_headers, &max_regs); + else + printf (" DW_CFA_advance_loc1: %ld to %s\n", + (unsigned long) (ofs * fc->code_factor), + dwarf_vmatoa_1 (NULL, + fc->pc_begin + ofs * fc->code_factor, + fc->ptr_size)); + fc->pc_begin += ofs * fc->code_factor; + break; + + case DW_CFA_advance_loc2: + SAFE_BYTE_GET_AND_INC (ofs, start, 2, end); + if (do_debug_frames_interp) + frame_display_row (fc, &need_col_headers, &max_regs); + else + printf (" DW_CFA_advance_loc2: %ld to %s\n", + (unsigned long) (ofs * fc->code_factor), + dwarf_vmatoa_1 (NULL, + fc->pc_begin + ofs * fc->code_factor, + fc->ptr_size)); + fc->pc_begin += ofs * fc->code_factor; + break; + + case DW_CFA_advance_loc4: + SAFE_BYTE_GET_AND_INC (ofs, start, 4, end); + if (do_debug_frames_interp) + frame_display_row (fc, &need_col_headers, &max_regs); + else + printf (" DW_CFA_advance_loc4: %ld to %s\n", + (unsigned long) (ofs * fc->code_factor), + dwarf_vmatoa_1 (NULL, + fc->pc_begin + ofs * fc->code_factor, + fc->ptr_size)); + fc->pc_begin += ofs * fc->code_factor; + break; + + case DW_CFA_offset_extended: + reg = LEB (); + roffs = LEB (); + if (reg >= (unsigned int) fc->ncols) + reg_prefix = bad_reg; + if (! do_debug_frames_interp || *reg_prefix != '\0') + printf (" DW_CFA_offset_extended: %s%s at cfa%+ld\n", + reg_prefix, regname (reg, 0), + roffs * fc->data_factor); + if (*reg_prefix == '\0') + { + fc->col_type[reg] = DW_CFA_offset; + fc->col_offset[reg] = roffs * fc->data_factor; + } + break; + + case DW_CFA_val_offset: + reg = LEB (); + roffs = LEB (); + if (reg >= (unsigned int) fc->ncols) + reg_prefix = bad_reg; + if (! do_debug_frames_interp || *reg_prefix != '\0') + printf (" DW_CFA_val_offset: %s%s at cfa%+ld\n", + reg_prefix, regname (reg, 0), + roffs * fc->data_factor); + if (*reg_prefix == '\0') + { + fc->col_type[reg] = DW_CFA_val_offset; + fc->col_offset[reg] = roffs * fc->data_factor; + } + break; + + case DW_CFA_restore_extended: + reg = LEB (); + if (reg >= (unsigned int) cie->ncols + || reg >= (unsigned int) fc->ncols) + reg_prefix = bad_reg; + if (! do_debug_frames_interp || *reg_prefix != '\0') + printf (" DW_CFA_restore_extended: %s%s\n", + reg_prefix, regname (reg, 0)); + if (*reg_prefix == '\0') + { + fc->col_type[reg] = cie->col_type[reg]; + fc->col_offset[reg] = cie->col_offset[reg]; + } + break; + + case DW_CFA_undefined: + reg = LEB (); + if (reg >= (unsigned int) fc->ncols) + reg_prefix = bad_reg; + if (! do_debug_frames_interp || *reg_prefix != '\0') + printf (" DW_CFA_undefined: %s%s\n", + reg_prefix, regname (reg, 0)); + if (*reg_prefix == '\0') + { + fc->col_type[reg] = DW_CFA_undefined; + fc->col_offset[reg] = 0; + } + break; + + case DW_CFA_same_value: + reg = LEB (); + if (reg >= (unsigned int) fc->ncols) + reg_prefix = bad_reg; + if (! do_debug_frames_interp || *reg_prefix != '\0') + printf (" DW_CFA_same_value: %s%s\n", + reg_prefix, regname (reg, 0)); + if (*reg_prefix == '\0') + { + fc->col_type[reg] = DW_CFA_same_value; + fc->col_offset[reg] = 0; + } + break; + + case DW_CFA_register: + reg = LEB (); + roffs = LEB (); + if (reg >= (unsigned int) fc->ncols) + reg_prefix = bad_reg; + if (! do_debug_frames_interp || *reg_prefix != '\0') + { + printf (" DW_CFA_register: %s%s in ", + reg_prefix, regname (reg, 0)); + puts (regname (roffs, 0)); + } + if (*reg_prefix == '\0') + { + fc->col_type[reg] = DW_CFA_register; + fc->col_offset[reg] = roffs; + } + break; + + case DW_CFA_remember_state: + if (! do_debug_frames_interp) + printf (" DW_CFA_remember_state\n"); + rs = (Frame_Chunk *) xmalloc (sizeof (Frame_Chunk)); + rs->ncols = fc->ncols; + rs->col_type = (short int *) xcmalloc (rs->ncols, + sizeof (short int)); + rs->col_offset = (int *) xcmalloc (rs->ncols, sizeof (int)); + memcpy (rs->col_type, fc->col_type, rs->ncols); + memcpy (rs->col_offset, fc->col_offset, rs->ncols * sizeof (int)); + rs->next = remembered_state; + remembered_state = rs; + break; + + case DW_CFA_restore_state: + if (! do_debug_frames_interp) + printf (" DW_CFA_restore_state\n"); + rs = remembered_state; + if (rs) + { + remembered_state = rs->next; + frame_need_space (fc, rs->ncols - 1); + memcpy (fc->col_type, rs->col_type, rs->ncols); + memcpy (fc->col_offset, rs->col_offset, + rs->ncols * sizeof (int)); + free (rs->col_type); + free (rs->col_offset); + free (rs); + } + else if (do_debug_frames_interp) + printf ("Mismatched DW_CFA_restore_state\n"); + break; + + case DW_CFA_def_cfa: + fc->cfa_reg = LEB (); + fc->cfa_offset = LEB (); + fc->cfa_exp = 0; + if (! do_debug_frames_interp) + printf (" DW_CFA_def_cfa: %s ofs %d\n", + regname (fc->cfa_reg, 0), fc->cfa_offset); + break; + + case DW_CFA_def_cfa_register: + fc->cfa_reg = LEB (); + fc->cfa_exp = 0; + if (! do_debug_frames_interp) + printf (" DW_CFA_def_cfa_register: %s\n", + regname (fc->cfa_reg, 0)); + break; + + case DW_CFA_def_cfa_offset: + fc->cfa_offset = LEB (); + if (! do_debug_frames_interp) + printf (" DW_CFA_def_cfa_offset: %d\n", fc->cfa_offset); + break; + + case DW_CFA_nop: + if (! do_debug_frames_interp) + printf (" DW_CFA_nop\n"); + break; + + case DW_CFA_def_cfa_expression: + ul = LEB (); + if (! do_debug_frames_interp) + { + printf (" DW_CFA_def_cfa_expression ("); + decode_location_expression (start, eh_addr_size, 0, -1, + ul, 0, section); + printf (")\n"); + } + fc->cfa_exp = 1; + start += ul; + break; + + case DW_CFA_expression: + reg = LEB (); + ul = LEB (); + if (reg >= (unsigned int) fc->ncols) + reg_prefix = bad_reg; + if (! do_debug_frames_interp || *reg_prefix != '\0') + { + printf (" DW_CFA_expression: %s%s (", + reg_prefix, regname (reg, 0)); + decode_location_expression (start, eh_addr_size, 0, -1, + ul, 0, section); + printf (")\n"); + } + if (*reg_prefix == '\0') + fc->col_type[reg] = DW_CFA_expression; + start += ul; + break; + + case DW_CFA_val_expression: + reg = LEB (); + ul = LEB (); + if (reg >= (unsigned int) fc->ncols) + reg_prefix = bad_reg; + if (! do_debug_frames_interp || *reg_prefix != '\0') + { + printf (" DW_CFA_val_expression: %s%s (", + reg_prefix, regname (reg, 0)); + decode_location_expression (start, eh_addr_size, 0, -1, + ul, 0, section); + printf (")\n"); + } + if (*reg_prefix == '\0') + fc->col_type[reg] = DW_CFA_val_expression; + start += ul; + break; + + case DW_CFA_offset_extended_sf: + reg = LEB (); + l = SLEB (); + if (frame_need_space (fc, reg) < 0) + reg_prefix = bad_reg; + if (! do_debug_frames_interp || *reg_prefix != '\0') + printf (" DW_CFA_offset_extended_sf: %s%s at cfa%+ld\n", + reg_prefix, regname (reg, 0), + l * fc->data_factor); + if (*reg_prefix == '\0') + { + fc->col_type[reg] = DW_CFA_offset; + fc->col_offset[reg] = l * fc->data_factor; + } + break; + + case DW_CFA_val_offset_sf: + reg = LEB (); + l = SLEB (); + if (frame_need_space (fc, reg) < 0) + reg_prefix = bad_reg; + if (! do_debug_frames_interp || *reg_prefix != '\0') + printf (" DW_CFA_val_offset_sf: %s%s at cfa%+ld\n", + reg_prefix, regname (reg, 0), + l * fc->data_factor); + if (*reg_prefix == '\0') + { + fc->col_type[reg] = DW_CFA_val_offset; + fc->col_offset[reg] = l * fc->data_factor; + } + break; + + case DW_CFA_def_cfa_sf: + fc->cfa_reg = LEB (); + fc->cfa_offset = SLEB (); + fc->cfa_offset = fc->cfa_offset * fc->data_factor; + fc->cfa_exp = 0; + if (! do_debug_frames_interp) + printf (" DW_CFA_def_cfa_sf: %s ofs %d\n", + regname (fc->cfa_reg, 0), fc->cfa_offset); + break; + + case DW_CFA_def_cfa_offset_sf: + fc->cfa_offset = SLEB (); + fc->cfa_offset = fc->cfa_offset * fc->data_factor; + if (! do_debug_frames_interp) + printf (" DW_CFA_def_cfa_offset_sf: %d\n", fc->cfa_offset); + break; + + case DW_CFA_MIPS_advance_loc8: + SAFE_BYTE_GET_AND_INC (ofs, start, 8, end); + if (do_debug_frames_interp) + frame_display_row (fc, &need_col_headers, &max_regs); + else + printf (" DW_CFA_MIPS_advance_loc8: %ld to %s\n", + (unsigned long) (ofs * fc->code_factor), + dwarf_vmatoa_1 (NULL, + fc->pc_begin + ofs * fc->code_factor, + fc->ptr_size)); + fc->pc_begin += ofs * fc->code_factor; + break; + + case DW_CFA_GNU_window_save: + if (! do_debug_frames_interp) + printf (" DW_CFA_GNU_window_save\n"); + break; + + case DW_CFA_GNU_args_size: + ul = LEB (); + if (! do_debug_frames_interp) + printf (" DW_CFA_GNU_args_size: %ld\n", ul); + break; + + case DW_CFA_GNU_negative_offset_extended: + reg = LEB (); + l = - LEB (); + if (frame_need_space (fc, reg) < 0) + reg_prefix = bad_reg; + if (! do_debug_frames_interp || *reg_prefix != '\0') + printf (" DW_CFA_GNU_negative_offset_extended: %s%s at cfa%+ld\n", + reg_prefix, regname (reg, 0), + l * fc->data_factor); + if (*reg_prefix == '\0') + { + fc->col_type[reg] = DW_CFA_offset; + fc->col_offset[reg] = l * fc->data_factor; + } + break; + + default: + if (op >= DW_CFA_lo_user && op <= DW_CFA_hi_user) + printf (_(" DW_CFA_??? (User defined call frame op: %#x)\n"), op); + else + warn (_("unsupported or unknown Dwarf Call Frame Instruction number: %#x\n"), op); + start = block_end; + } + } + + if (do_debug_frames_interp) + frame_display_row (fc, &need_col_headers, &max_regs); + + start = block_end; + eh_addr_size = saved_eh_addr_size; + } + + printf ("\n"); + + return 1; +} + +#undef GET +#undef LEB +#undef SLEB + +static int +display_gdb_index (struct dwarf_section *section, + void *file ATTRIBUTE_UNUSED) +{ + unsigned char *start = section->start; + uint32_t version; + uint32_t cu_list_offset, tu_list_offset; + uint32_t address_table_offset, symbol_table_offset, constant_pool_offset; + unsigned int cu_list_elements, tu_list_elements; + unsigned int address_table_size, symbol_table_slots; + unsigned char *cu_list, *tu_list; + unsigned char *address_table, *symbol_table, *constant_pool; + unsigned int i; + + /* The documentation for the format of this file is in gdb/dwarf2read.c. */ + + printf (_("Contents of the %s section:\n"), section->name); + + if (section->size < 6 * sizeof (uint32_t)) + { + warn (_("Truncated header in the %s section.\n"), section->name); + return 0; + } + + version = byte_get_little_endian (start, 4); + printf (_("Version %ld\n"), (long) version); + + /* Prior versions are obsolete, and future versions may not be + backwards compatible. */ + if (version < 3 || version > 8) + { + warn (_("Unsupported version %lu.\n"), (unsigned long) version); + return 0; + } + if (version < 4) + warn (_("The address table data in version 3 may be wrong.\n")); + if (version < 5) + warn (_("Version 4 does not support case insensitive lookups.\n")); + if (version < 6) + warn (_("Version 5 does not include inlined functions.\n")); + if (version < 7) + warn (_("Version 6 does not include symbol attributes.\n")); + /* Version 7 indices generated by Gold have bad type unit references, + PR binutils/15021. But we don't know if the index was generated by + Gold or not, so to avoid worrying users with gdb-generated indices + we say nothing for version 7 here. */ + + cu_list_offset = byte_get_little_endian (start + 4, 4); + tu_list_offset = byte_get_little_endian (start + 8, 4); + address_table_offset = byte_get_little_endian (start + 12, 4); + symbol_table_offset = byte_get_little_endian (start + 16, 4); + constant_pool_offset = byte_get_little_endian (start + 20, 4); + + if (cu_list_offset > section->size + || tu_list_offset > section->size + || address_table_offset > section->size + || symbol_table_offset > section->size + || constant_pool_offset > section->size) + { + warn (_("Corrupt header in the %s section.\n"), section->name); + return 0; + } + + cu_list_elements = (tu_list_offset - cu_list_offset) / 8; + tu_list_elements = (address_table_offset - tu_list_offset) / 8; + address_table_size = symbol_table_offset - address_table_offset; + symbol_table_slots = (constant_pool_offset - symbol_table_offset) / 8; + + cu_list = start + cu_list_offset; + tu_list = start + tu_list_offset; + address_table = start + address_table_offset; + symbol_table = start + symbol_table_offset; + constant_pool = start + constant_pool_offset; + + printf (_("\nCU table:\n")); + for (i = 0; i < cu_list_elements; i += 2) + { + uint64_t cu_offset = byte_get_little_endian (cu_list + i * 8, 8); + uint64_t cu_length = byte_get_little_endian (cu_list + i * 8 + 8, 8); + + printf (_("[%3u] 0x%lx - 0x%lx\n"), i / 2, + (unsigned long) cu_offset, + (unsigned long) (cu_offset + cu_length - 1)); + } + + printf (_("\nTU table:\n")); + for (i = 0; i < tu_list_elements; i += 3) + { + uint64_t tu_offset = byte_get_little_endian (tu_list + i * 8, 8); + uint64_t type_offset = byte_get_little_endian (tu_list + i * 8 + 8, 8); + uint64_t signature = byte_get_little_endian (tu_list + i * 8 + 16, 8); + + printf (_("[%3u] 0x%lx 0x%lx "), i / 3, + (unsigned long) tu_offset, + (unsigned long) type_offset); + print_dwarf_vma (signature, 8); + printf ("\n"); + } + + printf (_("\nAddress table:\n")); + for (i = 0; i < address_table_size; i += 2 * 8 + 4) + { + uint64_t low = byte_get_little_endian (address_table + i, 8); + uint64_t high = byte_get_little_endian (address_table + i + 8, 8); + uint32_t cu_index = byte_get_little_endian (address_table + i + 16, 4); + + print_dwarf_vma (low, 8); + print_dwarf_vma (high, 8); + printf (_("%lu\n"), (unsigned long) cu_index); + } + + printf (_("\nSymbol table:\n")); + for (i = 0; i < symbol_table_slots; ++i) + { + uint32_t name_offset = byte_get_little_endian (symbol_table + i * 8, 4); + uint32_t cu_vector_offset = byte_get_little_endian (symbol_table + i * 8 + 4, 4); + uint32_t num_cus, cu; + + if (name_offset != 0 + || cu_vector_offset != 0) + { + unsigned int j; + + printf ("[%3u] %s:", i, constant_pool + name_offset); + num_cus = byte_get_little_endian (constant_pool + cu_vector_offset, 4); + if (num_cus > 1) + printf ("\n"); + for (j = 0; j < num_cus; ++j) + { + int is_static; + gdb_index_symbol_kind kind; + + cu = byte_get_little_endian (constant_pool + cu_vector_offset + 4 + j * 4, 4); + is_static = GDB_INDEX_SYMBOL_STATIC_VALUE (cu); + kind = GDB_INDEX_SYMBOL_KIND_VALUE (cu); + cu = GDB_INDEX_CU_VALUE (cu); + /* Convert to TU number if it's for a type unit. */ + if (cu >= cu_list_elements / 2) + printf ("%cT%lu", num_cus > 1 ? '\t' : ' ', + (unsigned long) (cu - cu_list_elements / 2)); + else + printf ("%c%lu", num_cus > 1 ? '\t' : ' ', (unsigned long) cu); + + switch (kind) + { + case GDB_INDEX_SYMBOL_KIND_NONE: + printf (_(" [no symbol information]")); + break; + case GDB_INDEX_SYMBOL_KIND_TYPE: + printf (is_static + ? _(" [static type]") + : _(" [global type]")); + break; + case GDB_INDEX_SYMBOL_KIND_VARIABLE: + printf (is_static + ? _(" [static variable]") + : _(" [global variable]")); + break; + case GDB_INDEX_SYMBOL_KIND_FUNCTION: + printf (is_static + ? _(" [static function]") + : _(" [global function]")); + break; + case GDB_INDEX_SYMBOL_KIND_OTHER: + printf (is_static + ? _(" [static other]") + : _(" [global other]")); + break; + default: + printf (is_static + ? _(" [static unknown: %d]") + : _(" [global unknown: %d]"), + kind); + break; + } + if (num_cus > 1) + printf ("\n"); + } + if (num_cus <= 1) + printf ("\n"); + } + } + + return 1; +} + +/* Pre-allocate enough space for the CU/TU sets needed. */ + +static void +prealloc_cu_tu_list (unsigned int nshndx) +{ + if (shndx_pool == NULL) + { + shndx_pool_size = nshndx; + shndx_pool_used = 0; + shndx_pool = (unsigned int *) xcmalloc (shndx_pool_size, + sizeof (unsigned int)); + } + else + { + shndx_pool_size = shndx_pool_used + nshndx; + shndx_pool = (unsigned int *) xcrealloc (shndx_pool, shndx_pool_size, + sizeof (unsigned int)); + } +} + +static void +add_shndx_to_cu_tu_entry (unsigned int shndx) +{ + if (shndx_pool_used >= shndx_pool_size) + { + error (_("Internal error: out of space in the shndx pool.\n")); + return; + } + shndx_pool [shndx_pool_used++] = shndx; +} + +static void +end_cu_tu_entry (void) +{ + if (shndx_pool_used >= shndx_pool_size) + { + error (_("Internal error: out of space in the shndx pool.\n")); + return; + } + shndx_pool [shndx_pool_used++] = 0; +} + +/* Return the short name of a DWARF section given by a DW_SECT enumerator. */ + +static const char * +get_DW_SECT_short_name (unsigned int dw_sect) +{ + static char buf[16]; + + switch (dw_sect) + { + case DW_SECT_INFO: + return "info"; + case DW_SECT_TYPES: + return "types"; + case DW_SECT_ABBREV: + return "abbrev"; + case DW_SECT_LINE: + return "line"; + case DW_SECT_LOC: + return "loc"; + case DW_SECT_STR_OFFSETS: + return "str_off"; + case DW_SECT_MACINFO: + return "macinfo"; + case DW_SECT_MACRO: + return "macro"; + default: + break; + } + + snprintf (buf, sizeof (buf), "%d", dw_sect); + return buf; +} + +/* Process a CU or TU index. If DO_DISPLAY is true, print the contents. + These sections are extensions for Fission. + See http://gcc.gnu.org/wiki/DebugFissionDWP. */ + +static int +process_cu_tu_index (struct dwarf_section *section, int do_display) +{ + unsigned char *phdr = section->start; + unsigned char *limit = phdr + section->size; + unsigned char *phash; + unsigned char *pindex; + unsigned char *ppool; + unsigned int version; + unsigned int ncols = 0; + unsigned int nused; + unsigned int nslots; + unsigned int i; + unsigned int j; + dwarf_vma signature_high; + dwarf_vma signature_low; + char buf[64]; + + version = byte_get (phdr, 4); + if (version >= 2) + ncols = byte_get (phdr + 4, 4); + nused = byte_get (phdr + 8, 4); + nslots = byte_get (phdr + 12, 4); + phash = phdr + 16; + pindex = phash + nslots * 8; + ppool = pindex + nslots * 4; + + if (do_display) + { + printf (_("Contents of the %s section:\n\n"), section->name); + printf (_(" Version: %d\n"), version); + if (version >= 2) + printf (_(" Number of columns: %d\n"), ncols); + printf (_(" Number of used entries: %d\n"), nused); + printf (_(" Number of slots: %d\n\n"), nslots); + } + + if (ppool > limit) + { + warn (_("Section %s too small for %d hash table entries\n"), + section->name, nslots); + return 0; + } + + if (version == 1) + { + if (!do_display) + prealloc_cu_tu_list ((limit - ppool) / 4); + for (i = 0; i < nslots; i++) + { + unsigned char *shndx_list; + unsigned int shndx; + + byte_get_64 (phash, &signature_high, &signature_low); + if (signature_high != 0 || signature_low != 0) + { + j = byte_get (pindex, 4); + shndx_list = ppool + j * 4; + if (do_display) + printf (_(" [%3d] Signature: 0x%s Sections: "), + i, dwarf_vmatoa64 (signature_high, signature_low, + buf, sizeof (buf))); + for (;;) + { + if (shndx_list >= limit) + { + warn (_("Section %s too small for shndx pool\n"), + section->name); + return 0; + } + shndx = byte_get (shndx_list, 4); + if (shndx == 0) + break; + if (do_display) + printf (" %d", shndx); + else + add_shndx_to_cu_tu_entry (shndx); + shndx_list += 4; + } + if (do_display) + printf ("\n"); + else + end_cu_tu_entry (); + } + phash += 8; + pindex += 4; + } + } + else if (version == 2) + { + unsigned int val; + unsigned int dw_sect; + unsigned char *ph = phash; + unsigned char *pi = pindex; + unsigned char *poffsets = ppool + ncols * 4; + unsigned char *psizes = poffsets + nused * ncols * 4; + unsigned char *pend = psizes + nused * ncols * 4; + bfd_boolean is_tu_index; + struct cu_tu_set *this_set = NULL; + unsigned int row; + unsigned char *prow; + + is_tu_index = strcmp (section->name, ".debug_tu_index") == 0; + + if (pend > limit) + { + warn (_("Section %s too small for offset and size tables\n"), + section->name); + return 0; + } + + if (do_display) + { + printf (_(" Offset table\n")); + printf (" slot %-16s ", + is_tu_index ? _("signature") : _("dwo_id")); + } + else + { + if (is_tu_index) + { + tu_count = nused; + tu_sets = xcmalloc (nused, sizeof (struct cu_tu_set)); + this_set = tu_sets; + } + else + { + cu_count = nused; + cu_sets = xcmalloc (nused, sizeof (struct cu_tu_set)); + this_set = cu_sets; + } + } + if (do_display) + { + for (j = 0; j < ncols; j++) + { + dw_sect = byte_get (ppool + j * 4, 4); + printf (" %8s", get_DW_SECT_short_name (dw_sect)); + } + printf ("\n"); + } + for (i = 0; i < nslots; i++) + { + byte_get_64 (ph, &signature_high, &signature_low); + row = byte_get (pi, 4); + if (row != 0) + { + if (!do_display) + memcpy (&this_set[row - 1].signature, ph, sizeof (uint64_t)); + prow = poffsets + (row - 1) * ncols * 4; + if (do_display) + printf (_(" [%3d] 0x%s"), + i, dwarf_vmatoa64 (signature_high, signature_low, + buf, sizeof (buf))); + for (j = 0; j < ncols; j++) + { + val = byte_get (prow + j * 4, 4); + if (do_display) + printf (" %8d", val); + else + { + dw_sect = byte_get (ppool + j * 4, 4); + this_set [row - 1].section_offsets [dw_sect] = val; + } + } + if (do_display) + printf ("\n"); + } + ph += 8; + pi += 4; + } + + ph = phash; + pi = pindex; + if (do_display) + { + printf ("\n"); + printf (_(" Size table\n")); + printf (" slot %-16s ", + is_tu_index ? _("signature") : _("dwo_id")); + } + for (j = 0; j < ncols; j++) + { + val = byte_get (ppool + j * 4, 4); + if (do_display) + printf (" %8s", get_DW_SECT_short_name (val)); + } + if (do_display) + printf ("\n"); + for (i = 0; i < nslots; i++) + { + byte_get_64 (ph, &signature_high, &signature_low); + row = byte_get (pi, 4); + if (row != 0) + { + prow = psizes + (row - 1) * ncols * 4; + if (do_display) + printf (_(" [%3d] 0x%s"), + i, dwarf_vmatoa64 (signature_high, signature_low, + buf, sizeof (buf))); + for (j = 0; j < ncols; j++) + { + val = byte_get (prow + j * 4, 4); + if (do_display) + printf (" %8d", val); + else + { + dw_sect = byte_get (ppool + j * 4, 4); + this_set [row - 1].section_sizes [dw_sect] = val; + } + } + if (do_display) + printf ("\n"); + } + ph += 8; + pi += 4; + } + } + else if (do_display) + printf (_(" Unsupported version\n")); + + if (do_display) + printf ("\n"); + + return 1; +} + +/* Load the CU and TU indexes if present. This will build a list of + section sets that we can use to associate a .debug_info.dwo section + with its associated .debug_abbrev.dwo section in a .dwp file. */ + +static void +load_cu_tu_indexes (void *file) +{ + /* If we have already loaded (or tried to load) the CU and TU indexes + then do not bother to repeat the task. */ + if (cu_tu_indexes_read) + return; + + if (load_debug_section (dwp_cu_index, file)) + process_cu_tu_index (&debug_displays [dwp_cu_index].section, 0); + + if (load_debug_section (dwp_tu_index, file)) + process_cu_tu_index (&debug_displays [dwp_tu_index].section, 0); + + cu_tu_indexes_read = 1; +} + +/* Find the set of sections that includes section SHNDX. */ + +unsigned int * +find_cu_tu_set (void *file, unsigned int shndx) +{ + unsigned int i; + + load_cu_tu_indexes (file); + + /* Find SHNDX in the shndx pool. */ + for (i = 0; i < shndx_pool_used; i++) + if (shndx_pool [i] == shndx) + break; + + if (i >= shndx_pool_used) + return NULL; + + /* Now backup to find the first entry in the set. */ + while (i > 0 && shndx_pool [i - 1] != 0) + i--; + + return shndx_pool + i; +} + +/* Display a .debug_cu_index or .debug_tu_index section. */ + +static int +display_cu_index (struct dwarf_section *section, void *file ATTRIBUTE_UNUSED) +{ + return process_cu_tu_index (section, 1); +} + +static int +display_debug_not_supported (struct dwarf_section *section, + void *file ATTRIBUTE_UNUSED) +{ + printf (_("Displaying the debug contents of section %s is not yet supported.\n"), + section->name); + + return 1; +} + +void * +cmalloc (size_t nmemb, size_t size) +{ + /* Check for overflow. */ + if (nmemb >= ~(size_t) 0 / size) + return NULL; + else + return malloc (nmemb * size); +} + +void * +xcmalloc (size_t nmemb, size_t size) +{ + /* Check for overflow. */ + if (nmemb >= ~(size_t) 0 / size) + return NULL; + else + return xmalloc (nmemb * size); +} + +void * +xcrealloc (void *ptr, size_t nmemb, size_t size) +{ + /* Check for overflow. */ + if (nmemb >= ~(size_t) 0 / size) + return NULL; + else + return xrealloc (ptr, nmemb * size); +} + +void +free_debug_memory (void) +{ + unsigned int i; + + free_abbrevs (); + + for (i = 0; i < max; i++) + free_debug_section ((enum dwarf_section_display_enum) i); + + if (debug_information != NULL) + { + if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE) + { + for (i = 0; i < num_debug_info_entries; i++) + { + if (!debug_information [i].max_loc_offsets) + { + free (debug_information [i].loc_offsets); + free (debug_information [i].have_frame_base); + } + if (!debug_information [i].max_range_lists) + free (debug_information [i].range_lists); + } + } + + free (debug_information); + debug_information = NULL; + num_debug_info_entries = 0; + } +} + +void +dwarf_select_sections_by_names (const char *names) +{ + typedef struct + { + const char * option; + int * variable; + int val; + } + debug_dump_long_opts; + + static const debug_dump_long_opts opts_table [] = + { + /* Please keep this table alpha- sorted. */ + { "Ranges", & do_debug_ranges, 1 }, + { "abbrev", & do_debug_abbrevs, 1 }, + { "addr", & do_debug_addr, 1 }, + { "aranges", & do_debug_aranges, 1 }, + { "cu_index", & do_debug_cu_index, 1 }, + { "decodedline", & do_debug_lines, FLAG_DEBUG_LINES_DECODED }, + { "frames", & do_debug_frames, 1 }, + { "frames-interp", & do_debug_frames_interp, 1 }, + /* The special .gdb_index section. */ + { "gdb_index", & do_gdb_index, 1 }, + { "info", & do_debug_info, 1 }, + { "line", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, /* For backwards compatibility. */ + { "loc", & do_debug_loc, 1 }, + { "macro", & do_debug_macinfo, 1 }, + { "pubnames", & do_debug_pubnames, 1 }, + { "pubtypes", & do_debug_pubtypes, 1 }, + /* This entry is for compatability + with earlier versions of readelf. */ + { "ranges", & do_debug_aranges, 1 }, + { "rawline", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, + { "str", & do_debug_str, 1 }, + /* These trace_* sections are used by Itanium VMS. */ + { "trace_abbrev", & do_trace_abbrevs, 1 }, + { "trace_aranges", & do_trace_aranges, 1 }, + { "trace_info", & do_trace_info, 1 }, + { NULL, NULL, 0 } + }; + + const char *p; + + p = names; + while (*p) + { + const debug_dump_long_opts * entry; + + for (entry = opts_table; entry->option; entry++) + { + size_t len = strlen (entry->option); + + if (strncmp (p, entry->option, len) == 0 + && (p[len] == ',' || p[len] == '\0')) + { + * entry->variable |= entry->val; + + /* The --debug-dump=frames-interp option also + enables the --debug-dump=frames option. */ + if (do_debug_frames_interp) + do_debug_frames = 1; + + p += len; + break; + } + } + + if (entry->option == NULL) + { + warn (_("Unrecognized debug option '%s'\n"), p); + p = strchr (p, ','); + if (p == NULL) + break; + } + + if (*p == ',') + p++; + } +} + +void +dwarf_select_sections_by_letters (const char *letters) +{ + unsigned int lindex = 0; + + while (letters[lindex]) + switch (letters[lindex++]) + { + case 'i': + do_debug_info = 1; + break; + + case 'a': + do_debug_abbrevs = 1; + break; + + case 'l': + do_debug_lines |= FLAG_DEBUG_LINES_RAW; + break; + + case 'L': + do_debug_lines |= FLAG_DEBUG_LINES_DECODED; + break; + + case 'p': + do_debug_pubnames = 1; + break; + + case 't': + do_debug_pubtypes = 1; + break; + + case 'r': + do_debug_aranges = 1; + break; + + case 'R': + do_debug_ranges = 1; + break; + + case 'F': + do_debug_frames_interp = 1; + case 'f': + do_debug_frames = 1; + break; + + case 'm': + do_debug_macinfo = 1; + break; + + case 's': + do_debug_str = 1; + break; + + case 'o': + do_debug_loc = 1; + break; + + default: + warn (_("Unrecognized debug option '%s'\n"), optarg); + break; + } +} + +void +dwarf_select_sections_all (void) +{ + do_debug_info = 1; + do_debug_abbrevs = 1; + do_debug_lines = FLAG_DEBUG_LINES_RAW; + do_debug_pubnames = 1; + do_debug_pubtypes = 1; + do_debug_aranges = 1; + do_debug_ranges = 1; + do_debug_frames = 1; + do_debug_macinfo = 1; + do_debug_str = 1; + do_debug_loc = 1; + do_gdb_index = 1; + do_trace_info = 1; + do_trace_abbrevs = 1; + do_trace_aranges = 1; + do_debug_addr = 1; + do_debug_cu_index = 1; +} + +struct dwarf_section_display debug_displays[] = +{ + { { ".debug_abbrev", ".zdebug_abbrev", NULL, NULL, 0, 0, 0 }, + display_debug_abbrev, &do_debug_abbrevs, 0 }, + { { ".debug_aranges", ".zdebug_aranges", NULL, NULL, 0, 0, 0 }, + display_debug_aranges, &do_debug_aranges, 1 }, + { { ".debug_frame", ".zdebug_frame", NULL, NULL, 0, 0, 0 }, + display_debug_frames, &do_debug_frames, 1 }, + { { ".debug_info", ".zdebug_info", NULL, NULL, 0, 0, abbrev }, + display_debug_info, &do_debug_info, 1 }, + { { ".debug_line", ".zdebug_line", NULL, NULL, 0, 0, 0 }, + display_debug_lines, &do_debug_lines, 1 }, + { { ".debug_pubnames", ".zdebug_pubnames", NULL, NULL, 0, 0, 0 }, + display_debug_pubnames, &do_debug_pubnames, 0 }, + { { ".eh_frame", "", NULL, NULL, 0, 0, 0 }, + display_debug_frames, &do_debug_frames, 1 }, + { { ".debug_macinfo", ".zdebug_macinfo", NULL, NULL, 0, 0, 0 }, + display_debug_macinfo, &do_debug_macinfo, 0 }, + { { ".debug_macro", ".zdebug_macro", NULL, NULL, 0, 0, 0 }, + display_debug_macro, &do_debug_macinfo, 1 }, + { { ".debug_str", ".zdebug_str", NULL, NULL, 0, 0, 0 }, + display_debug_str, &do_debug_str, 0 }, + { { ".debug_loc", ".zdebug_loc", NULL, NULL, 0, 0, 0 }, + display_debug_loc, &do_debug_loc, 1 }, + { { ".debug_pubtypes", ".zdebug_pubtypes", NULL, NULL, 0, 0, 0 }, + display_debug_pubnames, &do_debug_pubtypes, 0 }, + { { ".debug_ranges", ".zdebug_ranges", NULL, NULL, 0, 0, 0 }, + display_debug_ranges, &do_debug_ranges, 1 }, + { { ".debug_static_func", ".zdebug_static_func", NULL, NULL, 0, 0, 0 }, + display_debug_not_supported, NULL, 0 }, + { { ".debug_static_vars", ".zdebug_static_vars", NULL, NULL, 0, 0, 0 }, + display_debug_not_supported, NULL, 0 }, + { { ".debug_types", ".zdebug_types", NULL, NULL, 0, 0, abbrev }, + display_debug_types, &do_debug_info, 1 }, + { { ".debug_weaknames", ".zdebug_weaknames", NULL, NULL, 0, 0, 0 }, + display_debug_not_supported, NULL, 0 }, + { { ".gdb_index", "", NULL, NULL, 0, 0, 0 }, + display_gdb_index, &do_gdb_index, 0 }, + { { ".trace_info", "", NULL, NULL, 0, 0, trace_abbrev }, + display_trace_info, &do_trace_info, 1 }, + { { ".trace_abbrev", "", NULL, NULL, 0, 0, 0 }, + display_debug_abbrev, &do_trace_abbrevs, 0 }, + { { ".trace_aranges", "", NULL, NULL, 0, 0, 0 }, + display_debug_aranges, &do_trace_aranges, 0 }, + { { ".debug_info.dwo", ".zdebug_info.dwo", NULL, NULL, 0, 0, abbrev_dwo }, + display_debug_info, &do_debug_info, 1 }, + { { ".debug_abbrev.dwo", ".zdebug_abbrev.dwo", NULL, NULL, 0, 0, 0 }, + display_debug_abbrev, &do_debug_abbrevs, 0 }, + { { ".debug_types.dwo", ".zdebug_types.dwo", NULL, NULL, 0, 0, abbrev_dwo }, + display_debug_types, &do_debug_info, 1 }, + { { ".debug_line.dwo", ".zdebug_line.dwo", NULL, NULL, 0, 0, 0 }, + display_debug_lines, &do_debug_lines, 1 }, + { { ".debug_loc.dwo", ".zdebug_loc.dwo", NULL, NULL, 0, 0, 0 }, + display_debug_loc, &do_debug_loc, 1 }, + { { ".debug_macro.dwo", ".zdebug_macro.dwo", NULL, NULL, 0, 0, 0 }, + display_debug_macro, &do_debug_macinfo, 1 }, + { { ".debug_macinfo.dwo", ".zdebug_macinfo.dwo", NULL, NULL, 0, 0, 0 }, + display_debug_macinfo, &do_debug_macinfo, 0 }, + { { ".debug_str.dwo", ".zdebug_str.dwo", NULL, NULL, 0, 0, 0 }, + display_debug_str, &do_debug_str, 1 }, + { { ".debug_str_offsets", ".zdebug_str_offsets", NULL, NULL, 0, 0, 0 }, + display_debug_str_offsets, NULL, 0 }, + { { ".debug_str_offsets.dwo", ".zdebug_str_offsets.dwo", NULL, NULL, 0, 0, 0 }, + display_debug_str_offsets, NULL, 0 }, + { { ".debug_addr", ".zdebug_addr", NULL, NULL, 0, 0, 0 }, + display_debug_addr, &do_debug_addr, 1 }, + { { ".debug_cu_index", "", NULL, NULL, 0, 0, 0 }, + display_cu_index, &do_debug_cu_index, 0 }, + { { ".debug_tu_index", "", NULL, NULL, 0, 0, 0 }, + display_cu_index, &do_debug_cu_index, 0 }, +}; 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