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Diffstat (limited to 'binutils-2.25/gas/listing.c')
| -rw-r--r-- | binutils-2.25/gas/listing.c | 1660 |
1 files changed, 1660 insertions, 0 deletions
diff --git a/binutils-2.25/gas/listing.c b/binutils-2.25/gas/listing.c new file mode 100644 index 00000000..182d5046 --- /dev/null +++ b/binutils-2.25/gas/listing.c @@ -0,0 +1,1660 @@ +/* listing.c - maintain assembly listings + Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, + 2001, 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2010 + Free Software Foundation, Inc. + + This file is part of GAS, the GNU Assembler. + + GAS 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, or (at your option) + any later version. + + GAS 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 GAS; see the file COPYING. If not, write to the Free + Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA + 02110-1301, USA. */ + +/* Contributed by Steve Chamberlain <sac@cygnus.com> + + A listing page looks like: + + LISTING_HEADER sourcefilename pagenumber + TITLE LINE + SUBTITLE LINE + linenumber address data source + linenumber address data source + linenumber address data source + linenumber address data source + + If not overridden, the listing commands are: + + .title "stuff" + Put "stuff" onto the title line + .sbttl "stuff" + Put stuff onto the subtitle line + + If these commands come within 10 lines of the top of the page, they + will affect the page they are on, as well as any subsequent page + + .eject + Thow a page + .list + Increment the enable listing counter + .nolist + Decrement the enable listing counter + + .psize Y[,X] + Set the paper size to X wide and Y high. Setting a psize Y of + zero will suppress form feeds except where demanded by .eject + + If the counter goes below zero, listing is suppressed. + + Listings are a maintained by read calling various listing_<foo> + functions. What happens most is that the macro NO_LISTING is not + defined (from the Makefile), then the macro LISTING_NEWLINE expands + into a call to listing_newline. The call is done from read.c, every + time it sees a newline, and -l is on the command line. + + The function listing_newline remembers the frag associated with the + newline, and creates a new frag - note that this is wasteful, but not + a big deal, since listing slows things down a lot anyway. The + function also remembers when the filename changes. + + When all the input has finished, and gas has had a chance to settle + down, the listing is output. This is done by running down the list of + frag/source file records, and opening the files as needed and printing + out the bytes and chars associated with them. + + The only things which the architecture can change about the listing + are defined in these macros: + + LISTING_HEADER The name of the architecture + LISTING_WORD_SIZE The make of the number of bytes in a word, this determines + the clumping of the output data. eg a value of + 2 makes words look like 1234 5678, whilst 1 + would make the same value look like 12 34 56 + 78 + LISTING_LHS_WIDTH Number of words of above size for the lhs + + LISTING_LHS_WIDTH_SECOND Number of words for the data on the lhs + for the second line + + LISTING_LHS_CONT_LINES Max number of lines to use up for a continuation + LISTING_RHS_WIDTH Number of chars from the input file to print + on a line. */ + +#include "as.h" +#include "filenames.h" +#include "obstack.h" +#include "safe-ctype.h" +#include "input-file.h" +#include "subsegs.h" +#include "bfdver.h" +#include <time.h> +#include <stdarg.h> + +#ifndef NO_LISTING + +#ifndef LISTING_HEADER +#define LISTING_HEADER "GAS LISTING" +#endif +#ifndef LISTING_WORD_SIZE +#define LISTING_WORD_SIZE 4 +#endif +#ifndef LISTING_LHS_WIDTH +#define LISTING_LHS_WIDTH ((LISTING_WORD_SIZE) > 4 ? 1 : 4 / (LISTING_WORD_SIZE)) +#endif +#ifndef LISTING_LHS_WIDTH_SECOND +#define LISTING_LHS_WIDTH_SECOND LISTING_LHS_WIDTH +#endif +#ifndef LISTING_RHS_WIDTH +#define LISTING_RHS_WIDTH 100 +#endif +#ifndef LISTING_LHS_CONT_LINES +#define LISTING_LHS_CONT_LINES 4 +#endif +#define MAX_DATELEN 30 + +/* This structure remembers which .s were used. */ +typedef struct file_info_struct +{ + struct file_info_struct * next; + char * filename; + long pos; + unsigned int linenum; + int at_end; +} file_info_type; + +enum edict_enum +{ + EDICT_NONE, + EDICT_SBTTL, + EDICT_TITLE, + EDICT_NOLIST, + EDICT_LIST, + EDICT_NOLIST_NEXT, + EDICT_EJECT +}; + + +struct list_message +{ + char *message; + struct list_message *next; +}; + +/* This structure remembers which line from which file goes into which + frag. */ +struct list_info_struct +{ + /* Frag which this line of source is nearest to. */ + fragS *frag; + + /* The actual line in the source file. */ + unsigned int line; + + /* Pointer to the file info struct for the file which this line + belongs to. */ + file_info_type *file; + + /* The expanded text of any macro that may have been executing. */ + char *line_contents; + + /* Next in list. */ + struct list_info_struct *next; + + /* Pointer to the file info struct for the high level language + source line that belongs here. */ + file_info_type *hll_file; + + /* High level language source line. */ + unsigned int hll_line; + + /* Pointers to linked list of messages associated with this line. */ + struct list_message *messages, *last_message; + + enum edict_enum edict; + char *edict_arg; + + /* Nonzero if this line is to be omitted because it contains + debugging information. This can become a flags field if we come + up with more information to store here. */ + int debugging; +}; + +typedef struct list_info_struct list_info_type; + +int listing_lhs_width = LISTING_LHS_WIDTH; +int listing_lhs_width_second = LISTING_LHS_WIDTH_SECOND; +int listing_lhs_cont_lines = LISTING_LHS_CONT_LINES; +int listing_rhs_width = LISTING_RHS_WIDTH; + +struct list_info_struct * listing_tail; + +static file_info_type * file_info_head; +static file_info_type * last_open_file_info; +static FILE * last_open_file; +static struct list_info_struct * head; +static int paper_width = 200; +static int paper_height = 60; + +extern int listing; + +/* File to output listings to. */ +static FILE *list_file; + +/* This static array is used to keep the text of data to be printed + before the start of the line. */ + +#define MAX_BYTES \ + (((LISTING_WORD_SIZE * 2) + 1) * listing_lhs_width \ + + ((((LISTING_WORD_SIZE * 2) + 1) * listing_lhs_width_second) \ + * listing_lhs_cont_lines) \ + + 20) + +static char *data_buffer; + +/* Prototypes. */ +static void listing_message (const char *, const char *); +static file_info_type *file_info (const char *); +static void new_frag (void); +static void listing_page (list_info_type *); +static unsigned int calc_hex (list_info_type *); +static void print_lines (list_info_type *, unsigned int, char *, unsigned int); +static void list_symbol_table (void); +static int debugging_pseudo (list_info_type *, const char *); +static void listing_listing (char *); + +static void +listing_message (const char *name, const char *message) +{ + if (listing_tail != (list_info_type *) NULL) + { + unsigned int l = strlen (name) + strlen (message) + 1; + char *n = (char *) xmalloc (l); + struct list_message *lm = xmalloc (sizeof *lm); + strcpy (n, name); + strcat (n, message); + lm->message = n; + lm->next = NULL; + + if (listing_tail->last_message) + listing_tail->last_message->next = lm; + else + listing_tail->messages = lm; + listing_tail->last_message = lm; + } +} + +void +listing_warning (const char *message) +{ + listing_message (_("Warning:"), message); +} + +void +listing_error (const char *message) +{ + listing_message (_("Error:"), message); +} + +static file_info_type * +file_info (const char *file_name) +{ + /* Find an entry with this file name. */ + file_info_type *p = file_info_head; + + while (p != (file_info_type *) NULL) + { + if (filename_cmp (p->filename, file_name) == 0) + return p; + p = p->next; + } + + /* Make new entry. */ + p = (file_info_type *) xmalloc (sizeof (file_info_type)); + p->next = file_info_head; + file_info_head = p; + p->filename = xstrdup (file_name); + p->pos = 0; + p->linenum = 0; + p->at_end = 0; + + return p; +} + +static void +new_frag (void) +{ + frag_wane (frag_now); + frag_new (0); +} + +void +listing_newline (char *ps) +{ + char *file; + unsigned int line; + static unsigned int last_line = 0xffff; + static char *last_file = NULL; + list_info_type *new_i = NULL; + + if (listing == 0) + return; + + if (now_seg == absolute_section) + return; + +#ifdef OBJ_ELF + /* In ELF, anything in a section beginning with .debug or .line is + considered to be debugging information. This includes the + statement which switches us into the debugging section, which we + can only set after we are already in the debugging section. */ + if ((listing & LISTING_NODEBUG) != 0 + && listing_tail != NULL + && ! listing_tail->debugging) + { + const char *segname; + + segname = segment_name (now_seg); + if (strncmp (segname, ".debug", sizeof ".debug" - 1) == 0 + || strncmp (segname, ".line", sizeof ".line" - 1) == 0) + listing_tail->debugging = 1; + } +#endif + + as_where (&file, &line); + if (ps == NULL) + { + if (line == last_line + && !(last_file && file && filename_cmp (file, last_file))) + return; + + new_i = (list_info_type *) xmalloc (sizeof (list_info_type)); + + /* Detect if we are reading from stdin by examining the file + name returned by as_where(). + + [FIXME: We rely upon the name in the strcmp below being the + same as the one used by input_scrub_new_file(), if that is + not true, then this code will fail]. + + If we are reading from stdin, then we need to save each input + line here (assuming of course that we actually have a line of + input to read), so that it can be displayed in the listing + that is produced at the end of the assembly. */ + if (strcmp (file, _("{standard input}")) == 0 + && input_line_pointer != NULL) + { + char *copy; + int len; + int seen_quote = 0; + int seen_slash = 0; + + for (copy = input_line_pointer; + *copy && (seen_quote + || is_end_of_line [(unsigned char) *copy] != 1); + copy++) + { + if (seen_slash) + seen_slash = 0; + else if (*copy == '\\') + seen_slash = 1; + else if (*copy == '"') + seen_quote = !seen_quote; + } + + len = copy - input_line_pointer + 1; + + copy = (char *) xmalloc (len); + + if (copy != NULL) + { + char *src = input_line_pointer; + char *dest = copy; + + while (--len) + { + unsigned char c = *src++; + + /* Omit control characters in the listing. */ + if (!ISCNTRL (c)) + *dest++ = c; + } + + *dest = 0; + } + + new_i->line_contents = copy; + } + else + new_i->line_contents = NULL; + } + else + { + new_i = (list_info_type *) xmalloc (sizeof (list_info_type)); + new_i->line_contents = ps; + } + + last_line = line; + last_file = file; + + new_frag (); + + if (listing_tail) + listing_tail->next = new_i; + else + head = new_i; + + listing_tail = new_i; + + new_i->frag = frag_now; + new_i->line = line; + new_i->file = file_info (file); + new_i->next = (list_info_type *) NULL; + new_i->messages = NULL; + new_i->last_message = NULL; + new_i->edict = EDICT_NONE; + new_i->hll_file = (file_info_type *) NULL; + new_i->hll_line = 0; + new_i->debugging = 0; + + new_frag (); + +#ifdef OBJ_ELF + /* In ELF, anything in a section beginning with .debug or .line is + considered to be debugging information. */ + if ((listing & LISTING_NODEBUG) != 0) + { + const char *segname; + + segname = segment_name (now_seg); + if (strncmp (segname, ".debug", sizeof ".debug" - 1) == 0 + || strncmp (segname, ".line", sizeof ".line" - 1) == 0) + new_i->debugging = 1; + } +#endif +} + +/* Attach all current frags to the previous line instead of the + current line. This is called by the MIPS backend when it discovers + that it needs to add some NOP instructions; the added NOP + instructions should go with the instruction that has the delay, not + with the new instruction. */ + +void +listing_prev_line (void) +{ + list_info_type *l; + fragS *f; + + if (head == (list_info_type *) NULL + || head == listing_tail) + return; + + new_frag (); + + for (l = head; l->next != listing_tail; l = l->next) + ; + + for (f = frchain_now->frch_root; f != (fragS *) NULL; f = f->fr_next) + if (f->line == listing_tail) + f->line = l; + + listing_tail->frag = frag_now; + new_frag (); +} + +/* This function returns the next source line from the file supplied, + truncated to size. It appends a fake line to the end of each input + file to make using the returned buffer simpler. */ + +static char * +buffer_line (file_info_type *file, char *line, unsigned int size) +{ + unsigned int count = 0; + int c; + char *p = line; + + /* If we couldn't open the file, return an empty line. */ + if (file->at_end) + return ""; + + /* Check the cache and see if we last used this file. */ + if (!last_open_file_info || file != last_open_file_info) + { + if (last_open_file) + { + last_open_file_info->pos = ftell (last_open_file); + fclose (last_open_file); + } + + /* Open the file in the binary mode so that ftell above can + return a reliable value that we can feed to fseek below. */ + last_open_file_info = file; + last_open_file = fopen (file->filename, FOPEN_RB); + if (last_open_file == NULL) + { + file->at_end = 1; + return ""; + } + + /* Seek to where we were last time this file was open. */ + if (file->pos) + fseek (last_open_file, file->pos, SEEK_SET); + } + + /* Leave room for null. */ + size -= 1; + + c = fgetc (last_open_file); + + while (c != EOF && c != '\n' && c != '\r') + { + if (count < size) + *p++ = c; + count++; + + c = fgetc (last_open_file); + } + + /* If '\r' is followed by '\n', swallow that. Likewise, if '\n' + is followed by '\r', swallow that as well. */ + if (c == '\r' || c == '\n') + { + int next = fgetc (last_open_file); + + if ((c == '\r' && next != '\n') + || (c == '\n' && next != '\r')) + ungetc (next, last_open_file); + } + + if (c == EOF) + { + file->at_end = 1; + if (count + 2 < size) + { + *p++ = '.'; + *p++ = '.'; + *p++ = '.'; + } + } + file->linenum++; + *p++ = 0; + return line; +} + + +/* This function rewinds the requested file back to the line requested, + reads it in again into the buffer provided and then restores the file + back to its original location. Returns the buffer pointer upon success + or an empty string if an error occurs. */ + +static char * +rebuffer_line (file_info_type * file, + unsigned int linenum, + char * buffer, + unsigned int size) +{ + unsigned int count = 0; + unsigned int current_line; + char * p = buffer; + long pos; + long pos2; + int c; + bfd_boolean found = FALSE; + + /* Sanity checks. */ + if (file == NULL || buffer == NULL || size <= 1 || file->linenum <= linenum) + return ""; + + /* Check the cache and see if we last used this file. */ + if (last_open_file_info == NULL || file != last_open_file_info) + { + if (last_open_file) + { + last_open_file_info->pos = ftell (last_open_file); + fclose (last_open_file); + } + + /* Open the file in the binary mode so that ftell above can + return a reliable value that we can feed to fseek below. */ + last_open_file_info = file; + last_open_file = fopen (file->filename, FOPEN_RB); + if (last_open_file == NULL) + { + file->at_end = 1; + return ""; + } + + /* Seek to where we were last time this file was open. */ + if (file->pos) + fseek (last_open_file, file->pos, SEEK_SET); + } + + /* Remember where we are in the current file. */ + pos2 = pos = ftell (last_open_file); + if (pos < 3) + return ""; + current_line = file->linenum; + + /* Leave room for the nul at the end of the buffer. */ + size -= 1; + buffer[size] = 0; + + /* Increment the current line count by one. + This is to allow for the fact that we are searching for the + start of a previous line, but we do this by detecting end-of-line + character(s) not start-of-line characters. */ + ++ current_line; + + while (pos2 > 0 && ! found) + { + char * ptr; + + /* Move backwards through the file, looking for earlier lines. */ + pos2 = (long) size > pos2 ? 0 : pos2 - size; + fseek (last_open_file, pos2, SEEK_SET); + + /* Our caller has kindly provided us with a buffer, so we use it. */ + if (fread (buffer, 1, size, last_open_file) != size) + { + as_warn (_("unable to rebuffer file: %s\n"), file->filename); + return ""; + } + + for (ptr = buffer + size; ptr >= buffer; -- ptr) + { + if (*ptr == '\n') + { + -- current_line; + + if (current_line == linenum) + { + /* We have found the start of the line we seek. */ + found = TRUE; + + /* FIXME: We could skip the read-in-the-line code + below if we know that we already have the whole + line in the buffer. */ + + /* Advance pos2 to the newline character we have just located. */ + pos2 += (ptr - buffer); + + /* Skip the newline and, if present, the carriage return. */ + if (ptr + 1 == buffer + size) + { + ++pos2; + if (fgetc (last_open_file) == '\r') + ++ pos2; + } + else + pos2 += (ptr[1] == '\r' ? 2 : 1); + + /* Move the file pointer to this location. */ + fseek (last_open_file, pos2, SEEK_SET); + break; + } + } + } + } + + /* Read in the line. */ + c = fgetc (last_open_file); + + while (c != EOF && c != '\n' && c != '\r') + { + if (count < size) + *p++ = c; + count++; + + c = fgetc (last_open_file); + } + + /* If '\r' is followed by '\n', swallow that. Likewise, if '\n' + is followed by '\r', swallow that as well. */ + if (c == '\r' || c == '\n') + { + int next = fgetc (last_open_file); + + if ((c == '\r' && next != '\n') + || (c == '\n' && next != '\r')) + ungetc (next, last_open_file); + } + + /* Terminate the line. */ + *p++ = 0; + + /* Reset the file position. */ + fseek (last_open_file, pos, SEEK_SET); + + return buffer; +} + +static const char *fn; + +static unsigned int eject; /* Eject pending */ +static unsigned int page; /* Current page number */ +static char *title; /* Current title */ +static char *subtitle; /* Current subtitle */ +static unsigned int on_page; /* Number of lines printed on current page */ + +static void +listing_page (list_info_type *list) +{ + /* Grope around, see if we can see a title or subtitle edict coming up + soon. (we look down 10 lines of the page and see if it's there) */ + if ((eject || (on_page >= (unsigned int) paper_height)) + && paper_height != 0) + { + unsigned int c = 10; + int had_title = 0; + int had_subtitle = 0; + + page++; + + while (c != 0 && list) + { + if (list->edict == EDICT_SBTTL && !had_subtitle) + { + had_subtitle = 1; + subtitle = list->edict_arg; + } + if (list->edict == EDICT_TITLE && !had_title) + { + had_title = 1; + title = list->edict_arg; + } + list = list->next; + c--; + } + + if (page > 1) + { + fprintf (list_file, "\f"); + } + + fprintf (list_file, "%s %s \t\t\tpage %d\n", LISTING_HEADER, fn, page); + fprintf (list_file, "%s\n", title); + fprintf (list_file, "%s\n", subtitle); + on_page = 3; + eject = 0; + } +} + +/* Print a line into the list_file. Update the line count + and if necessary start a new page. */ + +static void +emit_line (list_info_type * list, const char * format, ...) +{ + va_list args; + + va_start (args, format); + + vfprintf (list_file, format, args); + on_page++; + listing_page (list); + + va_end (args); +} + +static unsigned int +calc_hex (list_info_type *list) +{ + int data_buffer_size; + list_info_type *first = list; + unsigned int address = ~(unsigned int) 0; + fragS *frag; + fragS *frag_ptr; + unsigned int octet_in_frag; + + /* Find first frag which says it belongs to this line. */ + frag = list->frag; + while (frag && frag->line != list) + frag = frag->fr_next; + + frag_ptr = frag; + + data_buffer_size = 0; + + /* Dump all the frags which belong to this line. */ + while (frag_ptr != (fragS *) NULL && frag_ptr->line == first) + { + /* Print as many bytes from the fixed part as is sensible. */ + octet_in_frag = 0; + while ((offsetT) octet_in_frag < frag_ptr->fr_fix + && data_buffer_size < MAX_BYTES - 3) + { + if (address == ~(unsigned int) 0) + address = frag_ptr->fr_address / OCTETS_PER_BYTE; + + sprintf (data_buffer + data_buffer_size, + "%02X", + (frag_ptr->fr_literal[octet_in_frag]) & 0xff); + data_buffer_size += 2; + octet_in_frag++; + } + if (frag_ptr->fr_type == rs_fill) + { + unsigned int var_rep_max = octet_in_frag; + unsigned int var_rep_idx = octet_in_frag; + + /* Print as many bytes from the variable part as is sensible. */ + while (((offsetT) octet_in_frag + < (frag_ptr->fr_fix + frag_ptr->fr_var * frag_ptr->fr_offset)) + && data_buffer_size < MAX_BYTES - 3) + { + if (address == ~(unsigned int) 0) + address = frag_ptr->fr_address / OCTETS_PER_BYTE; + + sprintf (data_buffer + data_buffer_size, + "%02X", + (frag_ptr->fr_literal[var_rep_idx]) & 0xff); + data_buffer_size += 2; + + var_rep_idx++; + octet_in_frag++; + + if ((offsetT) var_rep_idx >= frag_ptr->fr_fix + frag_ptr->fr_var) + var_rep_idx = var_rep_max; + } + } + + frag_ptr = frag_ptr->fr_next; + } + data_buffer[data_buffer_size] = '\0'; + return address; +} + +static void +print_lines (list_info_type *list, unsigned int lineno, + char *string, unsigned int address) +{ + unsigned int idx; + unsigned int nchars; + unsigned int lines; + unsigned int octet_in_word = 0; + char *src = data_buffer; + int cur; + struct list_message *msg; + + /* Print the stuff on the first line. */ + listing_page (list); + nchars = (LISTING_WORD_SIZE * 2 + 1) * listing_lhs_width; + + /* Print the hex for the first line. */ + if (address == ~(unsigned int) 0) + { + fprintf (list_file, "% 4d ", lineno); + for (idx = 0; idx < nchars; idx++) + fprintf (list_file, " "); + + emit_line (NULL, "\t%s\n", string ? string : ""); + return; + } + + if (had_errors ()) + fprintf (list_file, "% 4d ???? ", lineno); + else + fprintf (list_file, "% 4d %04x ", lineno, address); + + /* And the data to go along with it. */ + idx = 0; + cur = 0; + while (src[cur] && idx < nchars) + { + int offset; + offset = cur; + fprintf (list_file, "%c%c", src[offset], src[offset + 1]); + cur += 2; + octet_in_word++; + + if (octet_in_word == LISTING_WORD_SIZE) + { + fprintf (list_file, " "); + idx++; + octet_in_word = 0; + } + + idx += 2; + } + + for (; idx < nchars; idx++) + fprintf (list_file, " "); + + emit_line (list, "\t%s\n", string ? string : ""); + + for (msg = list->messages; msg; msg = msg->next) + emit_line (list, "**** %s\n", msg->message); + + for (lines = 0; + lines < (unsigned int) listing_lhs_cont_lines + && src[cur]; + lines++) + { + nchars = ((LISTING_WORD_SIZE * 2) + 1) * listing_lhs_width_second - 1; + idx = 0; + + /* Print any more lines of data, but more compactly. */ + fprintf (list_file, "% 4d ", lineno); + + while (src[cur] && idx < nchars) + { + int offset; + offset = cur; + fprintf (list_file, "%c%c", src[offset], src[offset + 1]); + cur += 2; + idx += 2; + octet_in_word++; + + if (octet_in_word == LISTING_WORD_SIZE) + { + fprintf (list_file, " "); + idx++; + octet_in_word = 0; + } + } + + emit_line (list, "\n"); + } +} + +static void +list_symbol_table (void) +{ + extern symbolS *symbol_rootP; + int got_some = 0; + + symbolS *ptr; + eject = 1; + listing_page (NULL); + + for (ptr = symbol_rootP; ptr != (symbolS *) NULL; ptr = symbol_next (ptr)) + { + if (SEG_NORMAL (S_GET_SEGMENT (ptr)) + || S_GET_SEGMENT (ptr) == absolute_section) + { + /* Don't report section symbols. They are not interesting. */ + if (symbol_section_p (ptr)) + continue; + + if (S_GET_NAME (ptr)) + { + char buf[30], fmt[8]; + valueT val = S_GET_VALUE (ptr); + + /* @@ Note that this is dependent on the compilation options, + not solely on the target characteristics. */ + if (sizeof (val) == 4 && sizeof (int) == 4) + sprintf (buf, "%08lx", (unsigned long) val); + else if (sizeof (val) <= sizeof (unsigned long)) + { + sprintf (fmt, "%%0%lulx", + (unsigned long) (sizeof (val) * 2)); + sprintf (buf, fmt, (unsigned long) val); + } +#if defined (BFD64) + else if (sizeof (val) > 4) + sprintf_vma (buf, val); +#endif + else + abort (); + + if (!got_some) + { + fprintf (list_file, "DEFINED SYMBOLS\n"); + on_page++; + got_some = 1; + } + + if (symbol_get_frag (ptr) && symbol_get_frag (ptr)->line) + { + fprintf (list_file, "%20s:%-5d %s:%s %s\n", + symbol_get_frag (ptr)->line->file->filename, + symbol_get_frag (ptr)->line->line, + segment_name (S_GET_SEGMENT (ptr)), + buf, S_GET_NAME (ptr)); + } + else + { + fprintf (list_file, "%33s:%s %s\n", + segment_name (S_GET_SEGMENT (ptr)), + buf, S_GET_NAME (ptr)); + } + + on_page++; + listing_page (NULL); + } + } + + } + if (!got_some) + { + fprintf (list_file, "NO DEFINED SYMBOLS\n"); + on_page++; + } + emit_line (NULL, "\n"); + + got_some = 0; + + for (ptr = symbol_rootP; ptr != (symbolS *) NULL; ptr = symbol_next (ptr)) + { + if (S_GET_NAME (ptr) && strlen (S_GET_NAME (ptr)) != 0) + { + if (S_GET_SEGMENT (ptr) == undefined_section) + { + if (!got_some) + { + got_some = 1; + + emit_line (NULL, "UNDEFINED SYMBOLS\n"); + } + + emit_line (NULL, "%s\n", S_GET_NAME (ptr)); + } + } + } + + if (!got_some) + emit_line (NULL, "NO UNDEFINED SYMBOLS\n"); +} + +typedef struct cached_line +{ + file_info_type * file; + unsigned int line; + char buffer [LISTING_RHS_WIDTH]; +} cached_line; + +static void +print_source (file_info_type * current_file, + list_info_type * list, + unsigned int width) +{ +#define NUM_CACHE_LINES 3 + static cached_line cached_lines[NUM_CACHE_LINES]; + static int next_free_line = 0; + cached_line * cache = NULL; + + if (current_file->linenum > list->hll_line + && list->hll_line > 0) + { + /* This can happen with modern optimizing compilers. The source + lines from the high level language input program are split up + and interleaved, meaning the line number we want to display + (list->hll_line) can have already been displayed. We have + three choices: + + a. Do nothing, since we have already displayed the source + line. This was the old behaviour. + + b. Display the particular line requested again, but only + that line. This is the new behaviour. + + c. Display the particular line requested again and reset + the current_file->line_num value so that we redisplay + all the following lines as well the next time we + encounter a larger line number. */ + int i; + + /* Check the cache, maybe we already have the line saved. */ + for (i = 0; i < NUM_CACHE_LINES; i++) + if (cached_lines[i].file == current_file + && cached_lines[i].line == list->hll_line) + { + cache = cached_lines + i; + break; + } + + if (i == NUM_CACHE_LINES) + { + cache = cached_lines + next_free_line; + next_free_line ++; + if (next_free_line == NUM_CACHE_LINES) + next_free_line = 0; + + cache->file = current_file; + cache->line = list->hll_line; + cache->buffer[0] = 0; + rebuffer_line (current_file, cache->line, cache->buffer, width); + } + + emit_line (list, "%4u:%-13s **** %s\n", + cache->line, cache->file->filename, cache->buffer); + return; + } + + if (!current_file->at_end) + { + int num_lines_shown = 0; + + while (current_file->linenum < list->hll_line + && !current_file->at_end) + { + char *p; + + cache = cached_lines + next_free_line; + cache->file = current_file; + cache->line = current_file->linenum + 1; + cache->buffer[0] = 0; + p = buffer_line (current_file, cache->buffer, width); + + /* Cache optimization: If printing a group of lines + cache the first and last lines in the group. */ + if (num_lines_shown == 0) + { + next_free_line ++; + if (next_free_line == NUM_CACHE_LINES) + next_free_line = 0; + } + + emit_line (list, "%4u:%-13s **** %s\n", + cache->line, cache->file->filename, p); + num_lines_shown ++; + } + } +} + +/* Sometimes the user doesn't want to be bothered by the debugging + records inserted by the compiler, see if the line is suspicious. */ + +static int +debugging_pseudo (list_info_type *list, const char *line) +{ +#ifdef OBJ_ELF + static int in_debug; + int was_debug; +#endif + + if (list->debugging) + { +#ifdef OBJ_ELF + in_debug = 1; +#endif + return 1; + } +#ifdef OBJ_ELF + was_debug = in_debug; + in_debug = 0; +#endif + + while (ISSPACE (*line)) + line++; + + if (*line != '.') + { +#ifdef OBJ_ELF + /* The ELF compiler sometimes emits blank lines after switching + out of a debugging section. If the next line drops us back + into debugging information, then don't print the blank line. + This is a hack for a particular compiler behaviour, not a + general case. */ + if (was_debug + && *line == '\0' + && list->next != NULL + && list->next->debugging) + { + in_debug = 1; + return 1; + } +#endif + + return 0; + } + + line++; + + if (strncmp (line, "def", 3) == 0) + return 1; + if (strncmp (line, "val", 3) == 0) + return 1; + if (strncmp (line, "scl", 3) == 0) + return 1; + if (strncmp (line, "line", 4) == 0) + return 1; + if (strncmp (line, "endef", 5) == 0) + return 1; + if (strncmp (line, "ln", 2) == 0) + return 1; + if (strncmp (line, "type", 4) == 0) + return 1; + if (strncmp (line, "size", 4) == 0) + return 1; + if (strncmp (line, "dim", 3) == 0) + return 1; + if (strncmp (line, "tag", 3) == 0) + return 1; + if (strncmp (line, "stabs", 5) == 0) + return 1; + if (strncmp (line, "stabn", 5) == 0) + return 1; + + return 0; +} + +static void +listing_listing (char *name ATTRIBUTE_UNUSED) +{ + list_info_type *list = head; + file_info_type *current_hll_file = (file_info_type *) NULL; + char *buffer; + char *p; + int show_listing = 1; + unsigned int width; + + buffer = (char *) xmalloc (listing_rhs_width); + data_buffer = (char *) xmalloc (MAX_BYTES); + eject = 1; + list = head->next; + + while (list) + { + unsigned int list_line; + + width = listing_rhs_width > paper_width ? paper_width : + listing_rhs_width; + + list_line = list->line; + switch (list->edict) + { + case EDICT_LIST: + /* Skip all lines up to the current. */ + list_line--; + break; + case EDICT_NOLIST: + show_listing--; + break; + case EDICT_NOLIST_NEXT: + if (show_listing == 0) + list_line--; + break; + case EDICT_EJECT: + break; + case EDICT_NONE: + break; + case EDICT_TITLE: + title = list->edict_arg; + break; + case EDICT_SBTTL: + subtitle = list->edict_arg; + break; + default: + abort (); + } + + if (show_listing <= 0) + { + while (list->file->linenum < list_line + && !list->file->at_end) + p = buffer_line (list->file, buffer, width); + } + + if (list->edict == EDICT_LIST + || (list->edict == EDICT_NOLIST_NEXT && show_listing == 0)) + { + /* Enable listing for the single line that caused the enable. */ + list_line++; + show_listing++; + } + + if (show_listing > 0) + { + /* Scan down the list and print all the stuff which can be done + with this line (or lines). */ + if (list->hll_file) + current_hll_file = list->hll_file; + + if (current_hll_file && list->hll_line && (listing & LISTING_HLL)) + print_source (current_hll_file, list, width); + + if (list->line_contents) + { + if (!((listing & LISTING_NODEBUG) + && debugging_pseudo (list, list->line_contents))) + print_lines (list, + list->file->linenum == 0 ? list->line : list->file->linenum, + list->line_contents, calc_hex (list)); + + free (list->line_contents); + list->line_contents = NULL; + } + else + { + while (list->file->linenum < list_line + && !list->file->at_end) + { + unsigned int address; + + p = buffer_line (list->file, buffer, width); + + if (list->file->linenum < list_line) + address = ~(unsigned int) 0; + else + address = calc_hex (list); + + if (!((listing & LISTING_NODEBUG) + && debugging_pseudo (list, p))) + print_lines (list, list->file->linenum, p, address); + } + } + + if (list->edict == EDICT_EJECT) + eject = 1; + } + + if (list->edict == EDICT_NOLIST_NEXT && show_listing == 1) + --show_listing; + + list = list->next; + } + + free (buffer); + free (data_buffer); + data_buffer = NULL; +} + +/* Print time stamp in ISO format: yyyy-mm-ddThh:mm:ss.ss+/-zzzz. */ + +static void +print_timestamp (void) +{ + const time_t now = time (NULL); + struct tm * timestamp; + char stampstr[MAX_DATELEN]; + + /* Any portable way to obtain subsecond values??? */ + timestamp = localtime (&now); + strftime (stampstr, MAX_DATELEN, "%Y-%m-%dT%H:%M:%S.000%z", timestamp); + fprintf (list_file, _("\n time stamp \t: %s\n\n"), stampstr); +} + +static void +print_single_option (char * opt, int *pos) +{ + int opt_len = strlen (opt); + + if ((*pos + opt_len) < paper_width) + { + fprintf (list_file, _("%s "), opt); + *pos = *pos + opt_len; + } + else + { + fprintf (list_file, _("\n\t%s "), opt); + *pos = opt_len; + } +} + +/* Print options passed to as. */ + +static void +print_options (char ** argv) +{ + const char *field_name = _("\n options passed\t: "); + int pos = strlen (field_name); + char **p; + + fputs (field_name, list_file); + for (p = &argv[1]; *p != NULL; p++) + if (**p == '-') + { + /* Ignore these. */ + if (strcmp (*p, "-o") == 0) + { + if (p[1] != NULL) + p++; + continue; + } + if (strcmp (*p, "-v") == 0) + continue; + + print_single_option (*p, &pos); + } +} + +/* Print a first section with basic info like file names, as version, + options passed, target, and timestamp. + The format of this section is as follows: + + AS VERSION + + fieldname TAB ':' fieldcontents + { TAB fieldcontents-cont } */ + +static void +listing_general_info (char ** argv) +{ + /* Print the stuff on the first line. */ + eject = 1; + listing_page (NULL); + + fprintf (list_file, + _(" GNU assembler version %s (%s)\n\t using BFD version %s."), + VERSION, TARGET_ALIAS, BFD_VERSION_STRING); + print_options (argv); + fprintf (list_file, _("\n input file \t: %s"), fn); + fprintf (list_file, _("\n output file \t: %s"), out_file_name); + fprintf (list_file, _("\n target \t: %s"), TARGET_CANONICAL); + print_timestamp (); +} + +void +listing_print (char *name, char **argv) +{ + int using_stdout; + + title = ""; + subtitle = ""; + + if (name == NULL) + { + list_file = stdout; + using_stdout = 1; + } + else + { + list_file = fopen (name, FOPEN_WT); + if (list_file != NULL) + using_stdout = 0; + else + { + as_warn (_("can't open %s: %s"), name, xstrerror (errno)); + list_file = stdout; + using_stdout = 1; + } + } + + if (listing & LISTING_NOFORM) + paper_height = 0; + + if (listing & LISTING_GENERAL) + listing_general_info (argv); + + if (listing & LISTING_LISTING) + listing_listing (name); + + if (listing & LISTING_SYMBOLS) + list_symbol_table (); + + if (! using_stdout) + { + if (fclose (list_file) == EOF) + as_warn (_("can't close %s: %s"), name, xstrerror (errno)); + } + + if (last_open_file) + fclose (last_open_file); +} + +void +listing_file (const char *name) +{ + fn = name; +} + +void +listing_eject (int ignore ATTRIBUTE_UNUSED) +{ + if (listing) + listing_tail->edict = EDICT_EJECT; +} + +/* Turn listing on or off. An argument of 0 means to turn off + listing. An argument of 1 means to turn on listing. An argument + of 2 means to turn off listing, but as of the next line; that is, + the current line should be listed, but the next line should not. */ + +void +listing_list (int on) +{ + if (listing) + { + switch (on) + { + case 0: + if (listing_tail->edict == EDICT_LIST) + listing_tail->edict = EDICT_NONE; + else + listing_tail->edict = EDICT_NOLIST; + break; + case 1: + if (listing_tail->edict == EDICT_NOLIST + || listing_tail->edict == EDICT_NOLIST_NEXT) + listing_tail->edict = EDICT_NONE; + else + listing_tail->edict = EDICT_LIST; + break; + case 2: + listing_tail->edict = EDICT_NOLIST_NEXT; + break; + default: + abort (); + } + } +} + +void +listing_psize (int width_only) +{ + if (! width_only) + { + paper_height = get_absolute_expression (); + + if (paper_height < 0 || paper_height > 1000) + { + paper_height = 0; + as_warn (_("strange paper height, set to no form")); + } + + if (*input_line_pointer != ',') + { + demand_empty_rest_of_line (); + return; + } + + ++input_line_pointer; + } + + paper_width = get_absolute_expression (); + + demand_empty_rest_of_line (); +} + +void +listing_nopage (int ignore ATTRIBUTE_UNUSED) +{ + paper_height = 0; +} + +void +listing_title (int depth) +{ + int quoted; + char *start; + char *ttl; + unsigned int length; + + SKIP_WHITESPACE (); + if (*input_line_pointer != '\"') + quoted = 0; + else + { + quoted = 1; + ++input_line_pointer; + } + + start = input_line_pointer; + + while (*input_line_pointer) + { + if (quoted + ? *input_line_pointer == '\"' + : is_end_of_line[(unsigned char) *input_line_pointer]) + { + if (listing) + { + length = input_line_pointer - start; + ttl = (char *) xmalloc (length + 1); + memcpy (ttl, start, length); + ttl[length] = 0; + listing_tail->edict = depth ? EDICT_SBTTL : EDICT_TITLE; + listing_tail->edict_arg = ttl; + } + if (quoted) + input_line_pointer++; + demand_empty_rest_of_line (); + return; + } + else if (*input_line_pointer == '\n') + { + as_bad (_("new line in title")); + demand_empty_rest_of_line (); + return; + } + else + { + input_line_pointer++; + } + } +} + +void +listing_source_line (unsigned int line) +{ + if (listing) + { + new_frag (); + listing_tail->hll_line = line; + new_frag (); + } +} + +void +listing_source_file (const char *file) +{ + if (listing) + listing_tail->hll_file = file_info (file); +} + +#else + +/* Dummy functions for when compiled without listing enabled. */ + +void +listing_list (int on) +{ + s_ignore (0); +} + +void +listing_eject (int ignore) +{ + s_ignore (0); +} + +void +listing_psize (int ignore) +{ + s_ignore (0); +} + +void +listing_nopage (int ignore) +{ + s_ignore (0); +} + +void +listing_title (int depth) +{ + s_ignore (0); +} + +void +listing_file (const char *name) +{ +} + +void +listing_newline (char *name) +{ +} + +void +listing_source_line (unsigned int n) +{ +} + +void +listing_source_file (const char *n) +{ +} + +#endif |