From e75a9625a658e75feee8e2e2b6d42fa03d47b26d Mon Sep 17 00:00:00 2001 From: Elliott Hughes Date: Tue, 7 Jul 2015 17:06:28 -0700 Subject: Remove binutils-2.24. Change-Id: I26a47a29e4d16e75e21e9295504079a815c334c6 --- binutils-2.24/gas/config/tc-rx.c | 2690 -------------------------------------- 1 file changed, 2690 deletions(-) delete mode 100644 binutils-2.24/gas/config/tc-rx.c (limited to 'binutils-2.24/gas/config/tc-rx.c') diff --git a/binutils-2.24/gas/config/tc-rx.c b/binutils-2.24/gas/config/tc-rx.c deleted file mode 100644 index f15ed93c..00000000 --- a/binutils-2.24/gas/config/tc-rx.c +++ /dev/null @@ -1,2690 +0,0 @@ -/* tc-rx.c -- Assembler for the Renesas RX - Copyright 2008-2013 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. */ - -#include "as.h" -#include "struc-symbol.h" -#include "obstack.h" -#include "safe-ctype.h" -#include "dwarf2dbg.h" -#include "libbfd.h" -#include "elf/common.h" -#include "elf/rx.h" -#include "rx-defs.h" -#include "filenames.h" -#include "listing.h" -#include "sb.h" -#include "macro.h" - -#define RX_OPCODE_BIG_ENDIAN 0 - -const char comment_chars[] = ";"; -/* Note that input_file.c hand checks for '#' at the beginning of the - first line of the input file. This is because the compiler outputs - #NO_APP at the beginning of its output. */ -const char line_comment_chars[] = "#"; -const char line_separator_chars[] = "!"; - -const char EXP_CHARS[] = "eE"; -const char FLT_CHARS[] = "dD"; - -/* ELF flags to set in the output file header. */ -static int elf_flags = E_FLAG_RX_ABI; - -bfd_boolean rx_use_conventional_section_names = FALSE; -static bfd_boolean rx_use_small_data_limit = FALSE; - -static bfd_boolean rx_pid_mode = FALSE; -static int rx_num_int_regs = 0; -int rx_pid_register; -int rx_gp_register; - -enum rx_cpu_types rx_cpu = RX600; - -static void rx_fetchalign (int ignore ATTRIBUTE_UNUSED); - -enum options -{ - OPTION_BIG = OPTION_MD_BASE, - OPTION_LITTLE, - OPTION_32BIT_DOUBLES, - OPTION_64BIT_DOUBLES, - OPTION_CONVENTIONAL_SECTION_NAMES, - OPTION_RENESAS_SECTION_NAMES, - OPTION_SMALL_DATA_LIMIT, - OPTION_RELAX, - OPTION_PID, - OPTION_INT_REGS, - OPTION_USES_GCC_ABI, - OPTION_USES_RX_ABI, - OPTION_CPU, -}; - -#define RX_SHORTOPTS "" -const char * md_shortopts = RX_SHORTOPTS; - -/* Assembler options. */ -struct option md_longopts[] = -{ - {"mbig-endian-data", no_argument, NULL, OPTION_BIG}, - {"mlittle-endian-data", no_argument, NULL, OPTION_LITTLE}, - /* The next two switches are here because the - generic parts of the linker testsuite uses them. */ - {"EB", no_argument, NULL, OPTION_BIG}, - {"EL", no_argument, NULL, OPTION_LITTLE}, - {"m32bit-doubles", no_argument, NULL, OPTION_32BIT_DOUBLES}, - {"m64bit-doubles", no_argument, NULL, OPTION_64BIT_DOUBLES}, - /* This option is here mainly for the binutils testsuites, - as many of their tests assume conventional section naming. */ - {"muse-conventional-section-names", no_argument, NULL, OPTION_CONVENTIONAL_SECTION_NAMES}, - {"muse-renesas-section-names", no_argument, NULL, OPTION_RENESAS_SECTION_NAMES}, - {"msmall-data-limit", no_argument, NULL, OPTION_SMALL_DATA_LIMIT}, - {"relax", no_argument, NULL, OPTION_RELAX}, - {"mpid", no_argument, NULL, OPTION_PID}, - {"mint-register", required_argument, NULL, OPTION_INT_REGS}, - {"mgcc-abi", no_argument, NULL, OPTION_USES_GCC_ABI}, - {"mrx-abi", no_argument, NULL, OPTION_USES_RX_ABI}, - {"mcpu",required_argument,NULL,OPTION_CPU}, - {NULL, no_argument, NULL, 0} -}; -size_t md_longopts_size = sizeof (md_longopts); - -int -md_parse_option (int c ATTRIBUTE_UNUSED, char * arg ATTRIBUTE_UNUSED) -{ - switch (c) - { - case OPTION_BIG: - target_big_endian = 1; - return 1; - - case OPTION_LITTLE: - target_big_endian = 0; - return 1; - - case OPTION_32BIT_DOUBLES: - elf_flags &= ~ E_FLAG_RX_64BIT_DOUBLES; - return 1; - - case OPTION_64BIT_DOUBLES: - elf_flags |= E_FLAG_RX_64BIT_DOUBLES; - return 1; - - case OPTION_CONVENTIONAL_SECTION_NAMES: - rx_use_conventional_section_names = TRUE; - return 1; - - case OPTION_RENESAS_SECTION_NAMES: - rx_use_conventional_section_names = FALSE; - return 1; - - case OPTION_SMALL_DATA_LIMIT: - rx_use_small_data_limit = TRUE; - return 1; - - case OPTION_RELAX: - linkrelax = 1; - return 1; - - case OPTION_PID: - rx_pid_mode = TRUE; - elf_flags |= E_FLAG_RX_PID; - return 1; - - case OPTION_INT_REGS: - rx_num_int_regs = atoi (optarg); - return 1; - - case OPTION_USES_GCC_ABI: - elf_flags &= ~ E_FLAG_RX_ABI; - return 1; - - case OPTION_USES_RX_ABI: - elf_flags |= E_FLAG_RX_ABI; - return 1; - - case OPTION_CPU: - if (strcasecmp (arg, "rx100") == 0) - rx_cpu = RX100; - else if (strcasecmp (arg, "rx200") == 0) - rx_cpu = RX200; - else if (strcasecmp (arg, "rx600") == 0) - rx_cpu = RX600; - else if (strcasecmp (arg, "rx610") == 0) - rx_cpu = RX610; - else - { - as_warn (_("unrecognised RX CPU type %s"), arg); - break; - } - return 1; - } - return 0; -} - -void -md_show_usage (FILE * stream) -{ - fprintf (stream, _(" RX specific command line options:\n")); - fprintf (stream, _(" --mbig-endian-data\n")); - fprintf (stream, _(" --mlittle-endian-data [default]\n")); - fprintf (stream, _(" --m32bit-doubles [default]\n")); - fprintf (stream, _(" --m64bit-doubles\n")); - fprintf (stream, _(" --muse-conventional-section-names\n")); - fprintf (stream, _(" --muse-renesas-section-names [default]\n")); - fprintf (stream, _(" --msmall-data-limit\n")); - fprintf (stream, _(" --mrelax\n")); - fprintf (stream, _(" --mpid\n")); - fprintf (stream, _(" --mint-register=\n")); - fprintf (stream, _(" --mcpu=\n")); -} - -static void -s_bss (int ignore ATTRIBUTE_UNUSED) -{ - int temp; - - temp = get_absolute_expression (); - subseg_set (bss_section, (subsegT) temp); - demand_empty_rest_of_line (); -} - -static void -rx_float_cons (int ignore ATTRIBUTE_UNUSED) -{ - if (elf_flags & E_FLAG_RX_64BIT_DOUBLES) - return float_cons ('d'); - return float_cons ('f'); -} - -static char * -rx_strcasestr (const char *string, const char *sub) -{ - int subl; - int strl; - - if (!sub || !sub[0]) - return (char *)string; - - subl = strlen (sub); - strl = strlen (string); - - while (strl >= subl) - { - /* strncasecmp is in libiberty. */ - if (strncasecmp (string, sub, subl) == 0) - return (char *)string; - - string ++; - strl --; - } - return NULL; -} - -static void -rx_include (int ignore) -{ - FILE * try; - char * path; - char * filename; - char * current_filename; - char * eof; - char * p; - char * d; - char * f; - char end_char; - size_t len; - - /* The RX version of the .INCLUDE pseudo-op does not - have to have the filename inside double quotes. */ - SKIP_WHITESPACE (); - if (*input_line_pointer == '"') - { - /* Treat as the normal GAS .include pseudo-op. */ - s_include (ignore); - return; - } - - /* Get the filename. Spaces are allowed, NUL characters are not. */ - filename = input_line_pointer; - eof = find_end_of_line (filename, FALSE); - input_line_pointer = eof; - - while (eof >= filename && (* eof == ' ' || * eof == '\n')) - -- eof; - end_char = *(++ eof); - * eof = 0; - if (eof == filename) - { - as_bad (_("no filename following .INCLUDE pseudo-op")); - * eof = end_char; - return; - } - - as_where (& current_filename, NULL); - f = (char *) xmalloc (strlen (current_filename) + strlen (filename) + 1); - - /* Check the filename. If [@]..FILE[@] is found then replace - this with the current assembler source filename, stripped - of any directory prefixes or extensions. */ - if ((p = rx_strcasestr (filename, "..file")) != NULL) - { - char * c; - - len = 6; /* strlen ("..file"); */ - - if (p > filename && p[-1] == '@') - -- p, ++len; - - if (p[len] == '@') - len ++; - - for (d = c = current_filename; *c; c++) - if (IS_DIR_SEPARATOR (* c)) - d = c + 1; - for (c = d; *c; c++) - if (*c == '.') - break; - - sprintf (f, "%.*s%.*s%.*s", (int) (p - filename), filename, - (int) (c - d), d, - (int) (strlen (filename) - ((p + len) - filename)), - p + len); - } - else - strcpy (f, filename); - - /* RX .INCLUDE semantics say that 'filename' is located by: - - 1. If filename is absolute, just try that. Otherwise... - - 2. If the current source file includes a directory component - then prepend that to the filename and try. Otherwise... - - 3. Try any directories specified by the -I command line - option(s). - - 4 .Try a directory specifed by the INC100 environment variable. */ - - if (IS_ABSOLUTE_PATH (f)) - try = fopen (path = f, FOPEN_RT); - else - { - char * env = getenv ("INC100"); - - try = NULL; - - len = strlen (current_filename); - if ((size_t) include_dir_maxlen > len) - len = include_dir_maxlen; - if (env && strlen (env) > len) - len = strlen (env); - - path = (char *) xmalloc (strlen (f) + len + 5); - - if (current_filename != NULL) - { - for (d = NULL, p = current_filename; *p; p++) - if (IS_DIR_SEPARATOR (* p)) - d = p; - - if (d != NULL) - { - sprintf (path, "%.*s/%s", (int) (d - current_filename), current_filename, - f); - try = fopen (path, FOPEN_RT); - } - } - - if (try == NULL) - { - int i; - - for (i = 0; i < include_dir_count; i++) - { - sprintf (path, "%s/%s", include_dirs[i], f); - if ((try = fopen (path, FOPEN_RT)) != NULL) - break; - } - } - - if (try == NULL && env != NULL) - { - sprintf (path, "%s/%s", env, f); - try = fopen (path, FOPEN_RT); - } - - free (f); - } - - if (try == NULL) - { - as_bad (_("unable to locate include file: %s"), filename); - free (path); - } - else - { - fclose (try); - register_dependency (path); - input_scrub_insert_file (path); - } - - * eof = end_char; -} - -static void -parse_rx_section (char * name) -{ - asection * sec; - int type; - int attr = SHF_ALLOC | SHF_EXECINSTR; - int align = 2; - char end_char; - - do - { - char * p; - - SKIP_WHITESPACE (); - for (p = input_line_pointer; *p && strchr ("\n\t, =", *p) == NULL; p++) - ; - end_char = *p; - *p = 0; - - if (strcasecmp (input_line_pointer, "ALIGN") == 0) - { - *p = end_char; - - if (end_char == ' ') - while (ISSPACE (*p)) - p++; - - if (*p == '=') - { - ++ p; - while (ISSPACE (*p)) - p++; - switch (*p) - { - case '2': align = 2; break; - case '4': align = 4; break; - case '8': align = 8; break; - default: - as_bad (_("unrecognised alignment value in .SECTION directive: %s"), p); - ignore_rest_of_line (); - return; - } - ++ p; - } - - end_char = *p; - } - else if (strcasecmp (input_line_pointer, "CODE") == 0) - attr = SHF_ALLOC | SHF_EXECINSTR; - else if (strcasecmp (input_line_pointer, "DATA") == 0) - attr = SHF_ALLOC | SHF_WRITE; - else if (strcasecmp (input_line_pointer, "ROMDATA") == 0) - attr = SHF_ALLOC; - else - { - as_bad (_("unknown parameter following .SECTION directive: %s"), - input_line_pointer); - - *p = end_char; - input_line_pointer = p + 1; - ignore_rest_of_line (); - return; - } - - *p = end_char; - input_line_pointer = p + 1; - } - while (end_char != '\n' && end_char != 0); - - if ((sec = bfd_get_section_by_name (stdoutput, name)) == NULL) - { - if (strcmp (name, "B") && strcmp (name, "B_1") && strcmp (name, "B_2")) - type = SHT_NULL; - else - type = SHT_NOBITS; - - obj_elf_change_section (name, type, attr, 0, NULL, FALSE, FALSE); - } - else /* Try not to redefine a section, especially B_1. */ - { - int flags = sec->flags; - - type = elf_section_type (sec); - - attr = ((flags & SEC_READONLY) ? 0 : SHF_WRITE) - | ((flags & SEC_ALLOC) ? SHF_ALLOC : 0) - | ((flags & SEC_CODE) ? SHF_EXECINSTR : 0) - | ((flags & SEC_MERGE) ? SHF_MERGE : 0) - | ((flags & SEC_STRINGS) ? SHF_STRINGS : 0) - | ((flags & SEC_THREAD_LOCAL) ? SHF_TLS : 0); - - obj_elf_change_section (name, type, attr, 0, NULL, FALSE, FALSE); - } - - bfd_set_section_alignment (stdoutput, now_seg, align); -} - -static void -rx_section (int ignore) -{ - char * p; - - /* The as100 assembler supports a different syntax for the .section - pseudo-op. So check for it and handle it here if necessary. */ - SKIP_WHITESPACE (); - - /* Peek past the section name to see if arguments follow. */ - for (p = input_line_pointer; *p; p++) - if (*p == ',' || *p == '\n') - break; - - if (*p == ',') - { - int len = p - input_line_pointer; - - while (ISSPACE (*++p)) - ; - - if (*p != '"' && *p != '#') - { - char * name = (char *) xmalloc (len + 1); - - strncpy (name, input_line_pointer, len); - name[len] = 0; - - input_line_pointer = p; - parse_rx_section (name); - return; - } - } - - obj_elf_section (ignore); -} - -static void -rx_list (int ignore ATTRIBUTE_UNUSED) -{ - SKIP_WHITESPACE (); - - if (strncasecmp (input_line_pointer, "OFF", 3)) - listing_list (0); - else if (strncasecmp (input_line_pointer, "ON", 2)) - listing_list (1); - else - as_warn (_("expecting either ON or OFF after .list")); -} - -/* Like the .rept pseudo op, but supports the - use of ..MACREP inside the repeated region. */ - -static void -rx_rept (int ignore ATTRIBUTE_UNUSED) -{ - int count = get_absolute_expression (); - - do_repeat_with_expander (count, "MREPEAT", "ENDR", "..MACREP"); -} - -/* Like cons() accept that strings are allowed. */ - -static void -rx_cons (int size) -{ - SKIP_WHITESPACE (); - - if (* input_line_pointer == '"') - stringer (8+0); - else - cons (size); -} - -static void -rx_nop (int ignore ATTRIBUTE_UNUSED) -{ - ignore_rest_of_line (); -} - -static void -rx_unimp (int idx) -{ - as_warn (_("The \".%s\" pseudo-op is not implemented\n"), - md_pseudo_table[idx].poc_name); - ignore_rest_of_line (); -} - -/* The target specific pseudo-ops which we support. */ -const pseudo_typeS md_pseudo_table[] = -{ - /* These are unimplemented. They're listed first so that we can use - the poc_value as the index into this array, to get the name of - the pseudo. So, keep these (1) first, and (2) in order, with (3) - the poc_value's in sequence. */ - { "btglb", rx_unimp, 0 }, - { "call", rx_unimp, 1 }, - { "einsf", rx_unimp, 2 }, - { "fb", rx_unimp, 3 }, - { "fbsym", rx_unimp, 4 }, - { "id", rx_unimp, 5 }, - { "initsct", rx_unimp, 6 }, - { "insf", rx_unimp, 7 }, - { "instr", rx_unimp, 8 }, - { "lbba", rx_unimp, 9 }, - { "len", rx_unimp, 10 }, - { "optj", rx_unimp, 11 }, - { "rvector", rx_unimp, 12 }, - { "sb", rx_unimp, 13 }, - { "sbbit", rx_unimp, 14 }, - { "sbsym", rx_unimp, 15 }, - { "sbsym16", rx_unimp, 16 }, - - /* These are the do-nothing pseudos. */ - { "stk", rx_nop, 0 }, - /* The manual documents ".stk" but the compiler emits ".stack". */ - { "stack", rx_nop, 0 }, - - /* These are Renesas as100 assembler pseudo-ops that we do support. */ - { "addr", rx_cons, 3 }, - { "align", s_align_bytes, 2 }, - { "byte", rx_cons, 1 }, - { "fixed", float_cons, 'f' }, - { "form", listing_psize, 0 }, - { "glb", s_globl, 0 }, - { "include", rx_include, 0 }, - { "list", rx_list, 0 }, - { "lword", rx_cons, 4 }, - { "mrepeat", rx_rept, 0 }, - { "section", rx_section, 0 }, - - /* FIXME: The following pseudo-ops place their values (and associated - label if present) in the data section, regardless of whatever - section we are currently in. At the moment this code does not - implement that part of the semantics. */ - { "blka", s_space, 3 }, - { "blkb", s_space, 1 }, - { "blkd", s_space, 8 }, - { "blkf", s_space, 4 }, - { "blkl", s_space, 4 }, - { "blkw", s_space, 2 }, - - /* Our "standard" pseudos. */ - { "double", rx_float_cons, 0 }, - { "bss", s_bss, 0 }, - { "3byte", cons, 3 }, - { "int", cons, 4 }, - { "word", cons, 4 }, - - { "fetchalign", rx_fetchalign, 0 }, - - /* End of list marker. */ - { NULL, NULL, 0 } -}; - -static asymbol * gp_symbol; -static asymbol * rx_pid_symbol; - -static symbolS * rx_pidreg_symbol; -static symbolS * rx_gpreg_symbol; - -void -md_begin (void) -{ - /* Make the __gp and __pid_base symbols now rather - than after the symbol table is frozen. We only do this - when supporting small data limits because otherwise we - pollute the symbol table. */ - - /* The meta-registers %pidreg and %gpreg depend on what other - options are specified. The __rx_*_defined symbols exist so we - can .ifdef asm code based on what options were passed to gas, - without needing a preprocessor */ - - if (rx_pid_mode) - { - rx_pid_register = 13 - rx_num_int_regs; - rx_pid_symbol = symbol_get_bfdsym (symbol_find_or_make ("__pid_base")); - rx_pidreg_symbol = symbol_find_or_make ("__rx_pidreg_defined"); - S_SET_VALUE (rx_pidreg_symbol, rx_pid_register); - S_SET_SEGMENT (rx_pidreg_symbol, absolute_section); - } - - if (rx_use_small_data_limit) - { - if (rx_pid_mode) - rx_gp_register = rx_pid_register - 1; - else - rx_gp_register = 13 - rx_num_int_regs; - gp_symbol = symbol_get_bfdsym (symbol_find_or_make ("__gp")); - rx_gpreg_symbol = symbol_find_or_make ("__rx_gpreg_defined"); - S_SET_VALUE (rx_gpreg_symbol, rx_gp_register); - S_SET_SEGMENT (rx_gpreg_symbol, absolute_section); - } -} - -char * rx_lex_start; -char * rx_lex_end; - -/* These negative numbers are found in rx_bytesT.n_base for non-opcode - md_frags */ -#define RX_NBASE_FETCHALIGN -1 - -typedef struct rx_bytesT -{ - char base[4]; - /* If this is negative, it's a special-purpose frag as per the defines above. */ - int n_base; - char ops[8]; - int n_ops; - struct - { - expressionS exp; - char offset; - char nbits; - char type; /* RXREL_*. */ - int reloc; - fixS * fixP; - } fixups[2]; - int n_fixups; - struct - { - char type; - char field_pos; - char val_ofs; - } relax[2]; - int n_relax; - int link_relax; - fixS *link_relax_fixP; - char times_grown; - char times_shrank; -} rx_bytesT; - -static rx_bytesT rx_bytes; -/* We set n_ops to be "size of next opcode" if the next opcode doesn't relax. */ -static rx_bytesT *fetchalign_bytes = NULL; - -static void -rx_fetchalign (int ignore ATTRIBUTE_UNUSED) -{ - char * bytes; - fragS * frag_then; - - memset (& rx_bytes, 0, sizeof (rx_bytes)); - rx_bytes.n_base = RX_NBASE_FETCHALIGN; - - bytes = frag_more (8); - frag_then = frag_now; - frag_variant (rs_machine_dependent, - 0 /* max_chars */, - 0 /* var */, - 0 /* subtype */, - 0 /* symbol */, - 0 /* offset */, - 0 /* opcode */); - frag_then->fr_opcode = bytes; - frag_then->fr_subtype = 0; - fetchalign_bytes = frag_then->tc_frag_data; -} - -void -rx_relax (int type, int pos) -{ - rx_bytes.relax[rx_bytes.n_relax].type = type; - rx_bytes.relax[rx_bytes.n_relax].field_pos = pos; - rx_bytes.relax[rx_bytes.n_relax].val_ofs = rx_bytes.n_base + rx_bytes.n_ops; - rx_bytes.n_relax ++; -} - -void -rx_linkrelax_dsp (int pos) -{ - switch (pos) - { - case 4: - rx_bytes.link_relax |= RX_RELAXA_DSP4; - break; - case 6: - rx_bytes.link_relax |= RX_RELAXA_DSP6; - break; - case 14: - rx_bytes.link_relax |= RX_RELAXA_DSP14; - break; - } -} - -void -rx_linkrelax_imm (int pos) -{ - switch (pos) - { - case 6: - rx_bytes.link_relax |= RX_RELAXA_IMM6; - break; - case 12: - rx_bytes.link_relax |= RX_RELAXA_IMM12; - break; - } -} - -void -rx_linkrelax_branch (void) -{ - rx_bytes.link_relax |= RX_RELAXA_BRA; -} - -static void -rx_fixup (expressionS exp, int offsetbits, int nbits, int type) -{ - rx_bytes.fixups[rx_bytes.n_fixups].exp = exp; - rx_bytes.fixups[rx_bytes.n_fixups].offset = offsetbits; - rx_bytes.fixups[rx_bytes.n_fixups].nbits = nbits; - rx_bytes.fixups[rx_bytes.n_fixups].type = type; - rx_bytes.fixups[rx_bytes.n_fixups].reloc = exp.X_md; - rx_bytes.n_fixups ++; -} - -#define rx_field_fixup(exp, offset, nbits, type) \ - rx_fixup (exp, offset, nbits, type) - -#define rx_op_fixup(exp, offset, nbits, type) \ - rx_fixup (exp, offset + 8 * rx_bytes.n_base, nbits, type) - -void -rx_base1 (int b1) -{ - rx_bytes.base[0] = b1; - rx_bytes.n_base = 1; -} - -void -rx_base2 (int b1, int b2) -{ - rx_bytes.base[0] = b1; - rx_bytes.base[1] = b2; - rx_bytes.n_base = 2; -} - -void -rx_base3 (int b1, int b2, int b3) -{ - rx_bytes.base[0] = b1; - rx_bytes.base[1] = b2; - rx_bytes.base[2] = b3; - rx_bytes.n_base = 3; -} - -void -rx_base4 (int b1, int b2, int b3, int b4) -{ - rx_bytes.base[0] = b1; - rx_bytes.base[1] = b2; - rx_bytes.base[2] = b3; - rx_bytes.base[3] = b4; - rx_bytes.n_base = 4; -} - -/* This gets complicated when the field spans bytes, because fields - are numbered from the MSB of the first byte as zero, and bits are - stored LSB towards the LSB of the byte. Thus, a simple four-bit - insertion of 12 at position 4 of 0x00 yields: 0x0b. A three-bit - insertion of b'MXL at position 7 is like this: - - - - - - - - - - - - - - - - - - - M X L */ - -void -rx_field (int val, int pos, int sz) -{ - int valm; - int bytep, bitp; - - if (sz > 0) - { - if (val < 0 || val >= (1 << sz)) - as_bad (_("Value %d doesn't fit in unsigned %d-bit field"), val, sz); - } - else - { - sz = - sz; - if (val < -(1 << (sz - 1)) || val >= (1 << (sz - 1))) - as_bad (_("Value %d doesn't fit in signed %d-bit field"), val, sz); - } - - /* This code points at 'M' in the above example. */ - bytep = pos / 8; - bitp = pos % 8; - - while (bitp + sz > 8) - { - int ssz = 8 - bitp; - int svalm; - - svalm = val >> (sz - ssz); - svalm = svalm & ((1 << ssz) - 1); - svalm = svalm << (8 - bitp - ssz); - gas_assert (bytep < rx_bytes.n_base); - rx_bytes.base[bytep] |= svalm; - - bitp = 0; - sz -= ssz; - bytep ++; - } - valm = val & ((1 << sz) - 1); - valm = valm << (8 - bitp - sz); - gas_assert (bytep < rx_bytes.n_base); - rx_bytes.base[bytep] |= valm; -} - -/* Special case of the above, for 3-bit displacements of 2..9. */ - -void -rx_disp3 (expressionS exp, int pos) -{ - rx_field_fixup (exp, pos, 3, RXREL_PCREL); -} - -/* Special case of the above, for split 5-bit displacements. Assumes - the displacement has been checked with rx_disp5op. */ -/* ---- -432 1--- 0--- */ - -void -rx_field5s (expressionS exp) -{ - int val; - - val = exp.X_add_number; - rx_bytes.base[0] |= val >> 2; - rx_bytes.base[1] |= (val << 6) & 0x80; - rx_bytes.base[1] |= (val << 3) & 0x08; -} - -/* ---- ---- 4--- 3210 */ - -void -rx_field5s2 (expressionS exp) -{ - int val; - - val = exp.X_add_number; - rx_bytes.base[1] |= (val << 3) & 0x80; - rx_bytes.base[1] |= (val ) & 0x0f; -} - -#define OP(x) rx_bytes.ops[rx_bytes.n_ops++] = (x) - -#define F_PRECISION 2 - -void -rx_op (expressionS exp, int nbytes, int type) -{ - int v = 0; - - if ((exp.X_op == O_constant || exp.X_op == O_big) - && type != RXREL_PCREL) - { - if (exp.X_op == O_big && exp.X_add_number <= 0) - { - LITTLENUM_TYPE w[2]; - char * ip = rx_bytes.ops + rx_bytes.n_ops; - - gen_to_words (w, F_PRECISION, 8); -#if RX_OPCODE_BIG_ENDIAN - ip[0] = w[0] >> 8; - ip[1] = w[0]; - ip[2] = w[1] >> 8; - ip[3] = w[1]; -#else - ip[3] = w[0] >> 8; - ip[2] = w[0]; - ip[1] = w[1] >> 8; - ip[0] = w[1]; -#endif - rx_bytes.n_ops += 4; - } - else - { - v = exp.X_add_number; - while (nbytes) - { -#if RX_OPCODE_BIG_ENDIAN - OP ((v >> (8 * (nbytes - 1))) & 0xff); -#else - OP (v & 0xff); - v >>= 8; -#endif - nbytes --; - } - } - } - else - { - rx_op_fixup (exp, rx_bytes.n_ops * 8, nbytes * 8, type); - memset (rx_bytes.ops + rx_bytes.n_ops, 0, nbytes); - rx_bytes.n_ops += nbytes; - } -} - -int -rx_wrap (void) -{ - return 0; -} - -#define APPEND(B, N_B) \ - if (rx_bytes.N_B) \ - { \ - memcpy (bytes + idx, rx_bytes.B, rx_bytes.N_B); \ - idx += rx_bytes.N_B; \ - } - -void -rx_frag_init (fragS * fragP) -{ - if (rx_bytes.n_relax || rx_bytes.link_relax || rx_bytes.n_base < 0) - { - fragP->tc_frag_data = malloc (sizeof (rx_bytesT)); - memcpy (fragP->tc_frag_data, & rx_bytes, sizeof (rx_bytesT)); - } - else - fragP->tc_frag_data = 0; -} - -/* Handle the as100's version of the .equ pseudo-op. It has the syntax: - .equ */ - -static void -rx_equ (char * name, char * expression) -{ - char saved_name_end_char; - char * name_end; - char * saved_ilp; - - while (ISSPACE (* name)) - name ++; - - for (name_end = name + 1; *name_end; name_end ++) - if (! ISALNUM (* name_end)) - break; - - saved_name_end_char = * name_end; - * name_end = 0; - - saved_ilp = input_line_pointer; - input_line_pointer = expression; - - equals (name, 1); - - input_line_pointer = saved_ilp; - * name_end = saved_name_end_char; -} - -/* Look for Renesas as100 pseudo-ops that occur after a symbol name - rather than at the start of a line. (eg .EQU or .DEFINE). If one - is found, process it and return TRUE otherwise return FALSE. */ - -static bfd_boolean -scan_for_infix_rx_pseudo_ops (char * str) -{ - char * p; - char * pseudo_op; - char * dot = strchr (str, '.'); - - if (dot == NULL || dot == str) - return FALSE; - - /* A real pseudo-op must be preceeded by whitespace. */ - if (dot[-1] != ' ' && dot[-1] != '\t') - return FALSE; - - pseudo_op = dot + 1; - - if (!ISALNUM (* pseudo_op)) - return FALSE; - - for (p = pseudo_op + 1; ISALNUM (* p); p++) - ; - - if (strncasecmp ("EQU", pseudo_op, p - pseudo_op) == 0) - rx_equ (str, p); - else if (strncasecmp ("DEFINE", pseudo_op, p - pseudo_op) == 0) - as_warn (_("The .DEFINE pseudo-op is not implemented")); - else if (strncasecmp ("MACRO", pseudo_op, p - pseudo_op) == 0) - as_warn (_("The .MACRO pseudo-op is not implemented")); - else if (strncasecmp ("BTEQU", pseudo_op, p - pseudo_op) == 0) - as_warn (_("The .BTEQU pseudo-op is not implemented.")); - else - return FALSE; - - return TRUE; -} - -void -md_assemble (char * str) -{ - char * bytes; - int idx = 0; - int i, rel; - fragS * frag_then = frag_now; - expressionS *exp; - - memset (& rx_bytes, 0, sizeof (rx_bytes)); - - rx_lex_init (str, str + strlen (str)); - if (scan_for_infix_rx_pseudo_ops (str)) - return; - rx_parse (); - - /* This simplifies the relaxation code. */ - if (rx_bytes.n_relax || rx_bytes.link_relax) - { - /* We do it this way because we want the frag to have the - rx_bytes in it, which we initialize above. */ - bytes = frag_more (12); - frag_then = frag_now; - frag_variant (rs_machine_dependent, - 0 /* max_chars */, - 0 /* var */, - 0 /* subtype */, - 0 /* symbol */, - 0 /* offset */, - 0 /* opcode */); - frag_then->fr_opcode = bytes; - frag_then->fr_fix += rx_bytes.n_base + rx_bytes.n_ops; - frag_then->fr_subtype = rx_bytes.n_base + rx_bytes.n_ops; - } - else - { - bytes = frag_more (rx_bytes.n_base + rx_bytes.n_ops); - frag_then = frag_now; - if (fetchalign_bytes) - fetchalign_bytes->n_ops = rx_bytes.n_base + rx_bytes.n_ops; - } - - fetchalign_bytes = NULL; - - APPEND (base, n_base); - APPEND (ops, n_ops); - - if (rx_bytes.link_relax && rx_bytes.n_fixups) - { - fixS * f; - - f = fix_new (frag_then, - (char *) bytes - frag_then->fr_literal, - 0, - abs_section_sym, - rx_bytes.link_relax | rx_bytes.n_fixups, - 0, - BFD_RELOC_RX_RELAX); - frag_then->tc_frag_data->link_relax_fixP = f; - } - - for (i = 0; i < rx_bytes.n_fixups; i ++) - { - /* index: [nbytes][type] */ - static int reloc_map[5][4] = - { - { 0, 0, 0, BFD_RELOC_RX_DIR3U_PCREL }, - { BFD_RELOC_8, BFD_RELOC_RX_8U, BFD_RELOC_RX_NEG8, BFD_RELOC_8_PCREL }, - { BFD_RELOC_RX_16_OP, BFD_RELOC_RX_16U, BFD_RELOC_RX_NEG16, BFD_RELOC_16_PCREL }, - { BFD_RELOC_RX_24_OP, BFD_RELOC_RX_24U, BFD_RELOC_RX_NEG24, BFD_RELOC_24_PCREL }, - { BFD_RELOC_RX_32_OP, BFD_RELOC_32, BFD_RELOC_RX_NEG32, BFD_RELOC_32_PCREL }, - }; - fixS * f; - - idx = rx_bytes.fixups[i].offset / 8; - rel = reloc_map [rx_bytes.fixups[i].nbits / 8][(int) rx_bytes.fixups[i].type]; - - if (rx_bytes.fixups[i].reloc) - rel = rx_bytes.fixups[i].reloc; - - if (frag_then->tc_frag_data) - exp = & frag_then->tc_frag_data->fixups[i].exp; - else - exp = & rx_bytes.fixups[i].exp; - - f = fix_new_exp (frag_then, - (char *) bytes + idx - frag_then->fr_literal, - rx_bytes.fixups[i].nbits / 8, - exp, - rx_bytes.fixups[i].type == RXREL_PCREL ? 1 : 0, - rel); - if (frag_then->tc_frag_data) - frag_then->tc_frag_data->fixups[i].fixP = f; - } - - dwarf2_emit_insn (idx); -} - -void -rx_md_end (void) -{ -} - -/* Write a value out to the object file, using the appropriate endianness. */ - -void -md_number_to_chars (char * buf, valueT val, int n) -{ - if (target_big_endian) - number_to_chars_bigendian (buf, val, n); - else - number_to_chars_littleendian (buf, val, n); -} - -static struct -{ - char * fname; - int reloc; -} -reloc_functions[] = -{ - { "gp", BFD_RELOC_GPREL16 }, - { 0, 0 } -}; - -void -md_operand (expressionS * exp ATTRIBUTE_UNUSED) -{ - int reloc = 0; - int i; - - for (i = 0; reloc_functions[i].fname; i++) - { - int flen = strlen (reloc_functions[i].fname); - - if (input_line_pointer[0] == '%' - && strncasecmp (input_line_pointer + 1, reloc_functions[i].fname, flen) == 0 - && input_line_pointer[flen + 1] == '(') - { - reloc = reloc_functions[i].reloc; - input_line_pointer += flen + 2; - break; - } - } - if (reloc == 0) - return; - - expression (exp); - if (* input_line_pointer == ')') - input_line_pointer ++; - - exp->X_md = reloc; -} - -valueT -md_section_align (segT segment, valueT size) -{ - int align = bfd_get_section_alignment (stdoutput, segment); - return ((size + (1 << align) - 1) & (-1 << align)); -} - - /* NOP - 1 cycle */ -static unsigned char nop_1[] = { 0x03}; - /* MOV.L R0,R0 - 1 cycle */ -static unsigned char nop_2[] = { 0xef, 0x00}; - /* MAX R0,R0 - 1 cycle */ -static unsigned char nop_3[] = { 0xfc, 0x13, 0x00 }; - /* MUL #1,R0 - 1 cycle */ -static unsigned char nop_4[] = { 0x76, 0x10, 0x01, 0x00 }; - /* MUL #1,R0 - 1 cycle */ -static unsigned char nop_5[] = { 0x77, 0x10, 0x01, 0x00, 0x00 }; - /* MUL #1,R0 - 1 cycle */ -static unsigned char nop_6[] = { 0x74, 0x10, 0x01, 0x00, 0x00, 0x00 }; - /* BRA.S .+7 - 1 cycle */ -static unsigned char nop_7[] = { 0x0F, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03 }; - -static unsigned char *nops[] = { NULL, nop_1, nop_2, nop_3, nop_4, nop_5, nop_6, nop_7 }; -#define BIGGEST_NOP 7 - -/* When relaxing, we need to output a reloc for any .align directive - so that we can retain this alignment as we adjust opcode sizes. */ -void -rx_handle_align (fragS * frag) -{ - /* If handling an alignment frag, use an optimal NOP pattern. - Only do this if a fill value has not already been provided. - FIXME: This test fails if the provided fill value is zero. */ - if ((frag->fr_type == rs_align - || frag->fr_type == rs_align_code) - && subseg_text_p (now_seg)) - { - int count = (frag->fr_next->fr_address - - frag->fr_address - - frag->fr_fix); - unsigned char *base = (unsigned char *)frag->fr_literal + frag->fr_fix; - - if (* base == 0) - { - if (count > BIGGEST_NOP) - { - base[0] = 0x2e; - base[1] = count; - frag->fr_var = 2; - } - else if (count > 0) - { - memcpy (base, nops[count], count); - frag->fr_var = count; - } - } - } - - if (linkrelax - && (frag->fr_type == rs_align - || frag->fr_type == rs_align_code) - && frag->fr_address + frag->fr_fix > 0 - && frag->fr_offset > 0 - && now_seg != bss_section) - { - fix_new (frag, frag->fr_fix, 0, - &abs_symbol, RX_RELAXA_ALIGN + frag->fr_offset, - 0, BFD_RELOC_RX_RELAX); - /* For the purposes of relaxation, this relocation is attached - to the byte *after* the alignment - i.e. the byte that must - remain aligned. */ - fix_new (frag->fr_next, 0, 0, - &abs_symbol, RX_RELAXA_ELIGN + frag->fr_offset, - 0, BFD_RELOC_RX_RELAX); - } -} - -char * -md_atof (int type, char * litP, int * sizeP) -{ - return ieee_md_atof (type, litP, sizeP, target_big_endian); -} - -symbolS * -md_undefined_symbol (char * name ATTRIBUTE_UNUSED) -{ - return NULL; -} - -/*----------------------------------------------------------------------*/ -/* To recap: we estimate everything based on md_estimate_size, then - adjust based on rx_relax_frag. When it all settles, we call - md_convert frag to update the bytes. The relaxation types and - relocations are in fragP->tc_frag_data, which is a copy of that - rx_bytes. - - Our scheme is as follows: fr_fix has the size of the smallest - opcode (like BRA.S). We store the number of total bytes we need in - fr_subtype. When we're done relaxing, we use fr_subtype and the - existing opcode bytes to figure out what actual opcode we need to - put in there. If the fixup isn't resolvable now, we use the - maximal size. */ - -#define TRACE_RELAX 0 -#define tprintf if (TRACE_RELAX) printf - -typedef enum -{ - OT_other, - OT_bra, - OT_beq, - OT_bne, - OT_bsr, - OT_bcc -} op_type_T; - -/* We're looking for these types of relaxations: - - BRA.S 00001dsp - BRA.B 00101110 dspppppp - BRA.W 00111000 dspppppp pppppppp - BRA.A 00000100 dspppppp pppppppp pppppppp - - BEQ.S 00010dsp - BEQ.B 00100000 dspppppp - BEQ.W 00111010 dspppppp pppppppp - - BNE.S 00011dsp - BNE.B 00100001 dspppppp - BNE.W 00111011 dspppppp pppppppp - - BSR.W 00111001 dspppppp pppppppp - BSR.A 00000101 dspppppp pppppppp pppppppp - - Bcc.B 0010cond dspppppp - - Additionally, we can synthesize longer conditional branches using - pairs of opcodes, one with an inverted conditional (flip LSB): - - Bcc.W 0010ncnd 00000110 00111000 dspppppp pppppppp - Bcc.A 0010ncnd 00000111 00000100 dspppppp pppppppp pppppppp - BEQ.A 00011100 00000100 dspppppp pppppppp pppppppp - BNE.A 00010100 00000100 dspppppp pppppppp pppppppp */ - -/* Given the opcode bytes at OP, figure out which opcode it is and - return the type of opcode. We use this to re-encode the opcode as - a different size later. */ - -static op_type_T -rx_opcode_type (char * op) -{ - unsigned char b = (unsigned char) op[0]; - - switch (b & 0xf8) - { - case 0x08: return OT_bra; - case 0x10: return OT_beq; - case 0x18: return OT_bne; - } - - switch (b) - { - case 0x2e: return OT_bra; - case 0x38: return OT_bra; - case 0x04: return OT_bra; - - case 0x20: return OT_beq; - case 0x3a: return OT_beq; - - case 0x21: return OT_bne; - case 0x3b: return OT_bne; - - case 0x39: return OT_bsr; - case 0x05: return OT_bsr; - } - - if ((b & 0xf0) == 0x20) - return OT_bcc; - - return OT_other; -} - -/* Returns zero if *addrP has the target address. Else returns nonzero - if we cannot compute the target address yet. */ - -static int -rx_frag_fix_value (fragS * fragP, - segT segment, - int which, - addressT * addrP, - int need_diff, - addressT * sym_addr) -{ - addressT addr = 0; - rx_bytesT * b = fragP->tc_frag_data; - expressionS * exp = & b->fixups[which].exp; - - if (need_diff && exp->X_op != O_subtract) - return 1; - - if (exp->X_add_symbol) - { - if (S_FORCE_RELOC (exp->X_add_symbol, 1)) - return 1; - if (S_GET_SEGMENT (exp->X_add_symbol) != segment) - return 1; - addr += S_GET_VALUE (exp->X_add_symbol); - } - - if (exp->X_op_symbol) - { - if (exp->X_op != O_subtract) - return 1; - if (S_FORCE_RELOC (exp->X_op_symbol, 1)) - return 1; - if (S_GET_SEGMENT (exp->X_op_symbol) != segment) - return 1; - addr -= S_GET_VALUE (exp->X_op_symbol); - } - if (sym_addr) - * sym_addr = addr; - addr += exp->X_add_number; - * addrP = addr; - return 0; -} - -/* Estimate how big the opcode is after this relax pass. The return - value is the difference between fr_fix and the actual size. We - compute the total size in rx_relax_frag and store it in fr_subtype, - sowe only need to subtract fx_fix and return it. */ - -int -md_estimate_size_before_relax (fragS * fragP ATTRIBUTE_UNUSED, segT segment ATTRIBUTE_UNUSED) -{ - int opfixsize; - int delta; - - tprintf ("\033[32m est frag: addr %08lx fix %ld var %ld ofs %ld lit %p opc %p type %d sub %d\033[0m\n", - (unsigned long) (fragP->fr_address - + (fragP->fr_opcode - fragP->fr_literal)), - (long) fragP->fr_fix, (long) fragP->fr_var, (long) fragP->fr_offset, - fragP->fr_literal, fragP->fr_opcode, fragP->fr_type, fragP->fr_subtype); - - /* This is the size of the opcode that's accounted for in fr_fix. */ - opfixsize = fragP->fr_fix - (fragP->fr_opcode - fragP->fr_literal); - /* This is the size of the opcode that isn't. */ - delta = (fragP->fr_subtype - opfixsize); - - tprintf (" -> opfixsize %d delta %d\n", opfixsize, delta); - return delta; -} - -/* Given a frag FRAGP, return the "next" frag that contains an - opcode. Assumes the next opcode is relaxable, and thus rs_machine_dependent. */ - -static fragS * -rx_next_opcode (fragS *fragP) -{ - do { - fragP = fragP->fr_next; - } while (fragP && fragP->fr_type != rs_machine_dependent); - return fragP; -} - -/* Given the new addresses for this relax pass, figure out how big - each opcode must be. We store the total number of bytes needed in - fr_subtype. The return value is the difference between the size - after the last pass and the size after this pass, so we use the old - fr_subtype to calculate the difference. */ - -int -rx_relax_frag (segT segment ATTRIBUTE_UNUSED, fragS * fragP, long stretch) -{ - addressT addr0, sym_addr; - addressT mypc; - int disp; - int oldsize = fragP->fr_subtype; - int newsize = oldsize; - op_type_T optype; - /* Index of relaxation we care about. */ - int ri; - - tprintf ("\033[36mrelax frag: addr %08lx fix %ld var %ld ofs %ld lit %p opc %p type %d sub %d str %ld\033[0m\n", - (unsigned long) (fragP->fr_address - + (fragP->fr_opcode - fragP->fr_literal)), - (long) fragP->fr_fix, (long) fragP->fr_var, (long) fragP->fr_offset, - fragP->fr_literal, fragP->fr_opcode, fragP->fr_type, fragP->fr_subtype, stretch); - - mypc = fragP->fr_address + (fragP->fr_opcode - fragP->fr_literal); - - if (fragP->tc_frag_data->n_base == RX_NBASE_FETCHALIGN) - { - unsigned int next_size; - if (fragP->fr_next == NULL) - return 0; - - next_size = fragP->tc_frag_data->n_ops; - if (next_size == 0) - { - fragS *n = rx_next_opcode (fragP); - next_size = n->fr_subtype; - } - - fragP->fr_subtype = (8-(mypc & 7)) & 7; - tprintf("subtype %u\n", fragP->fr_subtype); - if (fragP->fr_subtype >= next_size) - fragP->fr_subtype = 0; - tprintf ("\033[34m -> mypc %lu next_size %u new %d old %d delta %d (fetchalign)\033[0m\n", - mypc & 7, - next_size, fragP->fr_subtype, oldsize, fragP->fr_subtype-oldsize); - - newsize = fragP->fr_subtype; - - return newsize - oldsize; - } - - optype = rx_opcode_type (fragP->fr_opcode); - - /* In the one case where we have both a disp and imm relaxation, we want - the imm relaxation here. */ - ri = 0; - if (fragP->tc_frag_data->n_relax > 1 - && fragP->tc_frag_data->relax[0].type == RX_RELAX_DISP) - ri = 1; - - /* Try to get the target address. */ - if (rx_frag_fix_value (fragP, segment, ri, & addr0, - fragP->tc_frag_data->relax[ri].type != RX_RELAX_BRANCH, - & sym_addr)) - { - /* If we don't, we must use the maximum size for the linker. - Note that we don't use synthetically expanded conditionals - for this. */ - switch (fragP->tc_frag_data->relax[ri].type) - { - case RX_RELAX_BRANCH: - switch (optype) - { - case OT_bra: - case OT_bsr: - newsize = 4; - break; - case OT_beq: - case OT_bne: - newsize = 3; - break; - case OT_bcc: - newsize = 2; - break; - case OT_other: - newsize = oldsize; - break; - } - break; - - case RX_RELAX_IMM: - newsize = fragP->tc_frag_data->relax[ri].val_ofs + 4; - break; - } - fragP->fr_subtype = newsize; - tprintf (" -> new %d old %d delta %d (external)\n", newsize, oldsize, newsize-oldsize); - return newsize - oldsize; - } - - if (sym_addr > mypc) - addr0 += stretch; - - switch (fragP->tc_frag_data->relax[ri].type) - { - case RX_RELAX_BRANCH: - tprintf ("branch, addr %08lx pc %08lx disp %ld\n", - (unsigned long) addr0, (unsigned long) mypc, - (long) (addr0 - mypc)); - disp = (int) addr0 - (int) mypc; - - switch (optype) - { - case OT_bcc: - if (disp >= -128 && (disp - (oldsize-2)) <= 127) - /* bcc.b */ - newsize = 2; - else if (disp >= -32768 && (disp - (oldsize-5)) <= 32767) - /* bncc.b/bra.w */ - newsize = 5; - else - /* bncc.b/bra.a */ - newsize = 6; - break; - - case OT_beq: - case OT_bne: - if ((disp - (oldsize-1)) >= 3 && (disp - (oldsize-1)) <= 10 && !linkrelax) - /* beq.s */ - newsize = 1; - else if (disp >= -128 && (disp - (oldsize-2)) <= 127) - /* beq.b */ - newsize = 2; - else if (disp >= -32768 && (disp - (oldsize-3)) <= 32767) - /* beq.w */ - newsize = 3; - else - /* bne.s/bra.a */ - newsize = 5; - break; - - case OT_bra: - case OT_bsr: - if ((disp - (oldsize-1)) >= 3 && (disp - (oldsize-1)) <= 10 && !linkrelax) - /* bra.s */ - newsize = 1; - else if (disp >= -128 && (disp - (oldsize-2)) <= 127) - /* bra.b */ - newsize = 2; - else if (disp >= -32768 && (disp - (oldsize-3)) <= 32767) - /* bra.w */ - newsize = 3; - else - /* bra.a */ - newsize = 4; - break; - - case OT_other: - break; - } - tprintf (" - newsize %d\n", newsize); - break; - - case RX_RELAX_IMM: - tprintf ("other, addr %08lx pc %08lx LI %d OF %d\n", - (unsigned long) addr0, (unsigned long) mypc, - fragP->tc_frag_data->relax[ri].field_pos, - fragP->tc_frag_data->relax[ri].val_ofs); - - newsize = fragP->tc_frag_data->relax[ri].val_ofs; - - if ((long) addr0 >= -128 && (long) addr0 <= 127) - newsize += 1; - else if ((long) addr0 >= -32768 && (long) addr0 <= 32767) - newsize += 2; - else if ((long) addr0 >= -8388608 && (long) addr0 <= 8388607) - newsize += 3; - else - newsize += 4; - break; - - default: - break; - } - - if (fragP->tc_frag_data->relax[ri].type == RX_RELAX_BRANCH) - switch (optype) - { - case OT_bra: - case OT_bcc: - case OT_beq: - case OT_bne: - break; - case OT_bsr: - if (newsize < 3) - newsize = 3; - break; - case OT_other: - break; - } - - /* This prevents infinite loops in align-heavy sources. */ - if (newsize < oldsize) - { - if (fragP->tc_frag_data->times_shrank > 10 - && fragP->tc_frag_data->times_grown > 10) - newsize = oldsize; - if (fragP->tc_frag_data->times_shrank < 20) - fragP->tc_frag_data->times_shrank ++; - } - else if (newsize > oldsize) - { - if (fragP->tc_frag_data->times_grown < 20) - fragP->tc_frag_data->times_grown ++; - } - - fragP->fr_subtype = newsize; - tprintf (" -> new %d old %d delta %d\n", newsize, oldsize, newsize-oldsize); - return newsize - oldsize; -} - -/* This lets us test for the opcode type and the desired size in a - switch statement. */ -#define OPCODE(type,size) ((type) * 16 + (size)) - -/* Given the opcode stored in fr_opcode and the number of bytes we - think we need, encode a new opcode. We stored a pointer to the - fixup for this opcode in the tc_frag_data structure. If we can do - the fixup here, we change the relocation type to "none" (we test - for that in tc_gen_reloc) else we change it to the right type for - the new (biggest) opcode. */ - -void -md_convert_frag (bfd * abfd ATTRIBUTE_UNUSED, - segT segment ATTRIBUTE_UNUSED, - fragS * fragP ATTRIBUTE_UNUSED) -{ - rx_bytesT * rxb = fragP->tc_frag_data; - addressT addr0, mypc; - int disp; - int reloc_type, reloc_adjust; - char * op = fragP->fr_opcode; - int keep_reloc = 0; - int ri; - int fi = (rxb->n_fixups > 1) ? 1 : 0; - fixS * fix = rxb->fixups[fi].fixP; - - tprintf ("\033[31mconvrt frag: addr %08lx fix %ld var %ld ofs %ld lit %p opc %p type %d sub %d\033[0m\n", - (unsigned long) (fragP->fr_address - + (fragP->fr_opcode - fragP->fr_literal)), - (long) fragP->fr_fix, (long) fragP->fr_var, (long) fragP->fr_offset, - fragP->fr_literal, fragP->fr_opcode, fragP->fr_type, - fragP->fr_subtype); - -#if TRACE_RELAX - { - int i; - - printf ("lit 0x%p opc 0x%p", fragP->fr_literal, fragP->fr_opcode); - for (i = 0; i < 10; i++) - printf (" %02x", (unsigned char) (fragP->fr_opcode[i])); - printf ("\n"); - } -#endif - - if (fragP->tc_frag_data->n_base == RX_NBASE_FETCHALIGN) - { - int count = fragP->fr_subtype; - if (count == 0) - ; - else if (count > BIGGEST_NOP) - { - op[0] = 0x2e; - op[1] = count; - } - else if (count > 0) - { - memcpy (op, nops[count], count); - } - } - - /* In the one case where we have both a disp and imm relaxation, we want - the imm relaxation here. */ - ri = 0; - if (fragP->tc_frag_data->n_relax > 1 - && fragP->tc_frag_data->relax[0].type == RX_RELAX_DISP) - ri = 1; - - /* We used a new frag for this opcode, so the opcode address should - be the frag address. */ - mypc = fragP->fr_address + (fragP->fr_opcode - fragP->fr_literal); - - /* Try to get the target address. If we fail here, we just use the - largest format. */ - if (rx_frag_fix_value (fragP, segment, 0, & addr0, - fragP->tc_frag_data->relax[ri].type != RX_RELAX_BRANCH, 0)) - { - /* We don't know the target address. */ - keep_reloc = 1; - addr0 = 0; - disp = 0; - } - else - { - /* We know the target address, and it's in addr0. */ - disp = (int) addr0 - (int) mypc; - } - - if (linkrelax) - keep_reloc = 1; - - reloc_type = BFD_RELOC_NONE; - reloc_adjust = 0; - - tprintf ("convert, op is %d, disp %d (%lx-%lx)\n", - rx_opcode_type (fragP->fr_opcode), disp, - (unsigned long) addr0, (unsigned long) mypc); - switch (fragP->tc_frag_data->relax[ri].type) - { - case RX_RELAX_BRANCH: - switch (OPCODE (rx_opcode_type (fragP->fr_opcode), fragP->fr_subtype)) - { - case OPCODE (OT_bra, 1): /* BRA.S - no change. */ - op[0] = 0x08 + (disp & 7); - break; - case OPCODE (OT_bra, 2): /* BRA.B - 8 bit. */ - op[0] = 0x2e; - op[1] = disp; - reloc_type = keep_reloc ? BFD_RELOC_8_PCREL : BFD_RELOC_NONE; - reloc_adjust = 1; - break; - case OPCODE (OT_bra, 3): /* BRA.W - 16 bit. */ - op[0] = 0x38; -#if RX_OPCODE_BIG_ENDIAN - op[1] = (disp >> 8) & 0xff; - op[2] = disp; -#else - op[2] = (disp >> 8) & 0xff; - op[1] = disp; -#endif - reloc_adjust = 1; - reloc_type = keep_reloc ? BFD_RELOC_16_PCREL : BFD_RELOC_NONE; - break; - case OPCODE (OT_bra, 4): /* BRA.A - 24 bit. */ - op[0] = 0x04; -#if RX_OPCODE_BIG_ENDIAN - op[1] = (disp >> 16) & 0xff; - op[2] = (disp >> 8) & 0xff; - op[3] = disp; -#else - op[3] = (disp >> 16) & 0xff; - op[2] = (disp >> 8) & 0xff; - op[1] = disp; -#endif - reloc_type = keep_reloc ? BFD_RELOC_24_PCREL : BFD_RELOC_NONE; - reloc_adjust = 1; - break; - - case OPCODE (OT_beq, 1): /* BEQ.S - no change. */ - op[0] = 0x10 + (disp & 7); - break; - case OPCODE (OT_beq, 2): /* BEQ.B - 8 bit. */ - op[0] = 0x20; - op[1] = disp; - reloc_adjust = 1; - reloc_type = keep_reloc ? BFD_RELOC_8_PCREL : BFD_RELOC_NONE; - break; - case OPCODE (OT_beq, 3): /* BEQ.W - 16 bit. */ - op[0] = 0x3a; -#if RX_OPCODE_BIG_ENDIAN - op[1] = (disp >> 8) & 0xff; - op[2] = disp; -#else - op[2] = (disp >> 8) & 0xff; - op[1] = disp; -#endif - reloc_type = keep_reloc ? BFD_RELOC_16_PCREL : BFD_RELOC_NONE; - reloc_adjust = 1; - break; - case OPCODE (OT_beq, 5): /* BEQ.A - synthetic. */ - op[0] = 0x1d; /* bne.s .+5. */ - op[1] = 0x04; /* bra.a dsp:24. */ - disp -= 1; -#if RX_OPCODE_BIG_ENDIAN - op[2] = (disp >> 16) & 0xff; - op[3] = (disp >> 8) & 0xff; - op[4] = disp; -#else - op[4] = (disp >> 16) & 0xff; - op[3] = (disp >> 8) & 0xff; - op[2] = disp; -#endif - reloc_type = keep_reloc ? BFD_RELOC_24_PCREL : BFD_RELOC_NONE; - reloc_adjust = 2; - break; - - case OPCODE (OT_bne, 1): /* BNE.S - no change. */ - op[0] = 0x18 + (disp & 7); - break; - case OPCODE (OT_bne, 2): /* BNE.B - 8 bit. */ - op[0] = 0x21; - op[1] = disp; - reloc_adjust = 1; - reloc_type = keep_reloc ? BFD_RELOC_8_PCREL : BFD_RELOC_NONE; - break; - case OPCODE (OT_bne, 3): /* BNE.W - 16 bit. */ - op[0] = 0x3b; -#if RX_OPCODE_BIG_ENDIAN - op[1] = (disp >> 8) & 0xff; - op[2] = disp; -#else - op[2] = (disp >> 8) & 0xff; - op[1] = disp; -#endif - reloc_type = keep_reloc ? BFD_RELOC_16_PCREL : BFD_RELOC_NONE; - reloc_adjust = 1; - break; - case OPCODE (OT_bne, 5): /* BNE.A - synthetic. */ - op[0] = 0x15; /* beq.s .+5. */ - op[1] = 0x04; /* bra.a dsp:24. */ - disp -= 1; -#if RX_OPCODE_BIG_ENDIAN - op[2] = (disp >> 16) & 0xff; - op[3] = (disp >> 8) & 0xff; - op[4] = disp; -#else - op[4] = (disp >> 16) & 0xff; - op[3] = (disp >> 8) & 0xff; - op[2] = disp; -#endif - reloc_type = keep_reloc ? BFD_RELOC_24_PCREL : BFD_RELOC_NONE; - reloc_adjust = 2; - break; - - case OPCODE (OT_bsr, 3): /* BSR.W - 16 bit. */ - op[0] = 0x39; -#if RX_OPCODE_BIG_ENDIAN - op[1] = (disp >> 8) & 0xff; - op[2] = disp; -#else - op[2] = (disp >> 8) & 0xff; - op[1] = disp; -#endif - reloc_type = keep_reloc ? BFD_RELOC_16_PCREL : BFD_RELOC_NONE; - reloc_adjust = 0; - break; - case OPCODE (OT_bsr, 4): /* BSR.A - 24 bit. */ - op[0] = 0x05; -#if RX_OPCODE_BIG_ENDIAN - op[1] = (disp >> 16) & 0xff; - op[2] = (disp >> 8) & 0xff; - op[3] = disp; -#else - op[3] = (disp >> 16) & 0xff; - op[2] = (disp >> 8) & 0xff; - op[1] = disp; -#endif - reloc_type = keep_reloc ? BFD_RELOC_24_PCREL : BFD_RELOC_NONE; - reloc_adjust = 0; - break; - - case OPCODE (OT_bcc, 2): /* Bcond.B - 8 bit. */ - op[1] = disp; - reloc_type = keep_reloc ? BFD_RELOC_8_PCREL : BFD_RELOC_NONE; - break; - case OPCODE (OT_bcc, 5): /* Bcond.W - synthetic. */ - op[0] ^= 1; /* Invert condition. */ - op[1] = 5; /* Displacement. */ - op[2] = 0x38; - disp -= 2; -#if RX_OPCODE_BIG_ENDIAN - op[3] = (disp >> 8) & 0xff; - op[4] = disp; -#else - op[4] = (disp >> 8) & 0xff; - op[3] = disp; -#endif - reloc_type = keep_reloc ? BFD_RELOC_16_PCREL : BFD_RELOC_NONE; - reloc_adjust = 2; - break; - case OPCODE (OT_bcc, 6): /* Bcond.S - synthetic. */ - op[0] ^= 1; /* Invert condition. */ - op[1] = 6; /* Displacement. */ - op[2] = 0x04; - disp -= 2; -#if RX_OPCODE_BIG_ENDIAN - op[3] = (disp >> 16) & 0xff; - op[4] = (disp >> 8) & 0xff; - op[5] = disp; -#else - op[5] = (disp >> 16) & 0xff; - op[4] = (disp >> 8) & 0xff; - op[3] = disp; -#endif - reloc_type = keep_reloc ? BFD_RELOC_24_PCREL : BFD_RELOC_NONE; - reloc_adjust = 2; - break; - - default: - /* These are opcodes we'll relax in th linker, later. */ - if (rxb->n_fixups) - reloc_type = rxb->fixups[ri].fixP->fx_r_type; - break; - } - break; - - case RX_RELAX_IMM: - { - int nbytes = fragP->fr_subtype - fragP->tc_frag_data->relax[ri].val_ofs; - int li; - char * imm = op + fragP->tc_frag_data->relax[ri].val_ofs; - - switch (nbytes) - { - case 1: - li = 1; - imm[0] = addr0; - reloc_type = BFD_RELOC_8; - break; - case 2: - li = 2; -#if RX_OPCODE_BIG_ENDIAN - imm[1] = addr0; - imm[0] = addr0 >> 8; -#else - imm[0] = addr0; - imm[1] = addr0 >> 8; -#endif - reloc_type = BFD_RELOC_RX_16_OP; - break; - case 3: - li = 3; -#if RX_OPCODE_BIG_ENDIAN - imm[2] = addr0; - imm[1] = addr0 >> 8; - imm[0] = addr0 >> 16; -#else - imm[0] = addr0; - imm[1] = addr0 >> 8; - imm[2] = addr0 >> 16; -#endif - reloc_type = BFD_RELOC_RX_24_OP; - break; - case 4: - li = 0; -#if RX_OPCODE_BIG_ENDIAN - imm[3] = addr0; - imm[2] = addr0 >> 8; - imm[1] = addr0 >> 16; - imm[0] = addr0 >> 24; -#else - imm[0] = addr0; - imm[1] = addr0 >> 8; - imm[2] = addr0 >> 16; - imm[3] = addr0 >> 24; -#endif - reloc_type = BFD_RELOC_RX_32_OP; - break; - default: - as_bad (_("invalid immediate size")); - li = -1; - } - - switch (fragP->tc_frag_data->relax[ri].field_pos) - { - case 6: - op[0] &= 0xfc; - op[0] |= li; - break; - case 12: - op[1] &= 0xf3; - op[1] |= li << 2; - break; - case 20: - op[2] &= 0xf3; - op[2] |= li << 2; - break; - default: - as_bad (_("invalid immediate field position")); - } - } - break; - - default: - if (rxb->n_fixups) - { - reloc_type = fix->fx_r_type; - reloc_adjust = 0; - } - break; - } - - if (rxb->n_fixups) - { - - fix->fx_r_type = reloc_type; - fix->fx_where += reloc_adjust; - switch (reloc_type) - { - case BFD_RELOC_NONE: - fix->fx_size = 0; - break; - case BFD_RELOC_8: - fix->fx_size = 1; - break; - case BFD_RELOC_16_PCREL: - case BFD_RELOC_RX_16_OP: - fix->fx_size = 2; - break; - case BFD_RELOC_24_PCREL: - case BFD_RELOC_RX_24_OP: - fix->fx_size = 3; - break; - case BFD_RELOC_RX_32_OP: - fix->fx_size = 4; - break; - } - } - - fragP->fr_fix = fragP->fr_subtype + (fragP->fr_opcode - fragP->fr_literal); - tprintf ("fragP->fr_fix now %ld (%d + (%p - %p)\n", (long) fragP->fr_fix, - fragP->fr_subtype, fragP->fr_opcode, fragP->fr_literal); - fragP->fr_var = 0; - - if (fragP->fr_next != NULL - && ((offsetT) (fragP->fr_next->fr_address - fragP->fr_address) - != fragP->fr_fix)) - as_bad (_("bad frag at %p : fix %ld addr %ld %ld \n"), fragP, - (long) fragP->fr_fix, - (long) fragP->fr_address, (long) fragP->fr_next->fr_address); -} - -#undef OPCODE - -int -rx_validate_fix_sub (struct fix * f) -{ - /* We permit the subtraction of two symbols in a few cases. */ - /* mov #sym1-sym2, R3 */ - if (f->fx_r_type == BFD_RELOC_RX_32_OP) - return 1; - /* .long sym1-sym2 */ - if (f->fx_r_type == BFD_RELOC_RX_DIFF - && ! f->fx_pcrel - && (f->fx_size == 4 || f->fx_size == 2 || f->fx_size == 1)) - return 1; - return 0; -} - -long -md_pcrel_from_section (fixS * fixP, segT sec) -{ - long rv; - - if (fixP->fx_addsy != NULL - && (! S_IS_DEFINED (fixP->fx_addsy) - || S_GET_SEGMENT (fixP->fx_addsy) != sec)) - /* The symbol is undefined (or is defined but not in this section). - Let the linker figure it out. */ - return 0; - - rv = fixP->fx_frag->fr_address + fixP->fx_where; - switch (fixP->fx_r_type) - { - case BFD_RELOC_RX_DIR3U_PCREL: - return rv; - default: - return rv - 1; - } -} - -void -rx_cons_fix_new (fragS * frag, - int where, - int size, - expressionS * exp) -{ - bfd_reloc_code_real_type type; - - switch (size) - { - case 1: - type = BFD_RELOC_8; - break; - case 2: - type = BFD_RELOC_16; - break; - case 3: - type = BFD_RELOC_24; - break; - case 4: - type = BFD_RELOC_32; - break; - default: - as_bad (_("unsupported constant size %d\n"), size); - return; - } - - if (exp->X_op == O_subtract && exp->X_op_symbol) - { - if (size != 4 && size != 2 && size != 1) - as_bad (_("difference of two symbols only supported with .long, .short, or .byte")); - else - type = BFD_RELOC_RX_DIFF; - } - - fix_new_exp (frag, where, (int) size, exp, 0, type); -} - -void -md_apply_fix (struct fix * f ATTRIBUTE_UNUSED, - valueT * t ATTRIBUTE_UNUSED, - segT s ATTRIBUTE_UNUSED) -{ - /* Instruction bytes are always little endian. */ - char * op; - unsigned long val; - - if (f->fx_addsy && S_FORCE_RELOC (f->fx_addsy, 1)) - return; - if (f->fx_subsy && S_FORCE_RELOC (f->fx_subsy, 1)) - return; - -#define OP2(x) op[target_big_endian ? 1-x : x] -#define OP3(x) op[target_big_endian ? 2-x : x] -#define OP4(x) op[target_big_endian ? 3-x : x] - - op = f->fx_frag->fr_literal + f->fx_where; - val = (unsigned long) * t; - - /* Opcode words are always the same endian. Data words are either - big or little endian. */ - - switch (f->fx_r_type) - { - case BFD_RELOC_NONE: - break; - - case BFD_RELOC_RX_RELAX: - f->fx_done = 1; - break; - - case BFD_RELOC_RX_DIR3U_PCREL: - if (val < 3 || val > 10) - as_bad_where (f->fx_file, f->fx_line, - _("jump not 3..10 bytes away (is %d)"), (int) val); - op[0] &= 0xf8; - op[0] |= val & 0x07; - break; - - case BFD_RELOC_8: - case BFD_RELOC_8_PCREL: - case BFD_RELOC_RX_8U: - op[0] = val; - break; - - case BFD_RELOC_16: - OP2(1) = val & 0xff; - OP2(0) = (val >> 8) & 0xff; - break; - - case BFD_RELOC_16_PCREL: - case BFD_RELOC_RX_16_OP: - case BFD_RELOC_RX_16U: -#if RX_OPCODE_BIG_ENDIAN - op[1] = val & 0xff; - op[0] = (val >> 8) & 0xff; -#else - op[0] = val & 0xff; - op[1] = (val >> 8) & 0xff; -#endif - break; - - case BFD_RELOC_24: - OP3(0) = val & 0xff; - OP3(1) = (val >> 8) & 0xff; - OP3(2) = (val >> 16) & 0xff; - break; - - case BFD_RELOC_24_PCREL: - case BFD_RELOC_RX_24_OP: - case BFD_RELOC_RX_24U: -#if RX_OPCODE_BIG_ENDIAN - op[2] = val & 0xff; - op[1] = (val >> 8) & 0xff; - op[0] = (val >> 16) & 0xff; -#else - op[0] = val & 0xff; - op[1] = (val >> 8) & 0xff; - op[2] = (val >> 16) & 0xff; -#endif - break; - - case BFD_RELOC_RX_DIFF: - switch (f->fx_size) - { - case 1: - op[0] = val & 0xff; - break; - case 2: - OP2(0) = val & 0xff; - OP2(1) = (val >> 8) & 0xff; - break; - case 4: - OP4(0) = val & 0xff; - OP4(1) = (val >> 8) & 0xff; - OP4(2) = (val >> 16) & 0xff; - OP4(3) = (val >> 24) & 0xff; - break; - } - break; - - case BFD_RELOC_32: - OP4(0) = val & 0xff; - OP4(1) = (val >> 8) & 0xff; - OP4(2) = (val >> 16) & 0xff; - OP4(3) = (val >> 24) & 0xff; - break; - - case BFD_RELOC_RX_32_OP: -#if RX_OPCODE_BIG_ENDIAN - op[3] = val & 0xff; - op[2] = (val >> 8) & 0xff; - op[1] = (val >> 16) & 0xff; - op[0] = (val >> 24) & 0xff; -#else - op[0] = val & 0xff; - op[1] = (val >> 8) & 0xff; - op[2] = (val >> 16) & 0xff; - op[3] = (val >> 24) & 0xff; -#endif - break; - - case BFD_RELOC_RX_NEG8: - op[0] = - val; - break; - - case BFD_RELOC_RX_NEG16: - val = -val; -#if RX_OPCODE_BIG_ENDIAN - op[1] = val & 0xff; - op[0] = (val >> 8) & 0xff; -#else - op[0] = val & 0xff; - op[1] = (val >> 8) & 0xff; -#endif - break; - - case BFD_RELOC_RX_NEG24: - val = -val; -#if RX_OPCODE_BIG_ENDIAN - op[2] = val & 0xff; - op[1] = (val >> 8) & 0xff; - op[0] = (val >> 16) & 0xff; -#else - op[0] = val & 0xff; - op[1] = (val >> 8) & 0xff; - op[2] = (val >> 16) & 0xff; -#endif - break; - - case BFD_RELOC_RX_NEG32: - val = -val; -#if RX_OPCODE_BIG_ENDIAN - op[3] = val & 0xff; - op[2] = (val >> 8) & 0xff; - op[1] = (val >> 16) & 0xff; - op[0] = (val >> 24) & 0xff; -#else - op[0] = val & 0xff; - op[1] = (val >> 8) & 0xff; - op[2] = (val >> 16) & 0xff; - op[3] = (val >> 24) & 0xff; -#endif - break; - - case BFD_RELOC_RX_GPRELL: - val >>= 1; - case BFD_RELOC_RX_GPRELW: - val >>= 1; - case BFD_RELOC_RX_GPRELB: -#if RX_OPCODE_BIG_ENDIAN - op[1] = val & 0xff; - op[0] = (val >> 8) & 0xff; -#else - op[0] = val & 0xff; - op[1] = (val >> 8) & 0xff; -#endif - break; - - default: - as_bad (_("Unknown reloc in md_apply_fix: %s"), - bfd_get_reloc_code_name (f->fx_r_type)); - break; - } - - if (f->fx_addsy == NULL) - f->fx_done = 1; -} - -arelent ** -tc_gen_reloc (asection * sec ATTRIBUTE_UNUSED, fixS * fixp) -{ - static arelent * reloc[5]; - bfd_boolean is_opcode = FALSE; - - if (fixp->fx_r_type == BFD_RELOC_NONE) - { - reloc[0] = NULL; - return reloc; - } - - if (fixp->fx_subsy - && S_GET_SEGMENT (fixp->fx_subsy) == absolute_section) - { - fixp->fx_offset -= S_GET_VALUE (fixp->fx_subsy); - fixp->fx_subsy = NULL; - } - - reloc[0] = (arelent *) xmalloc (sizeof (arelent)); - reloc[0]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); - * reloc[0]->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); - reloc[0]->address = fixp->fx_frag->fr_address + fixp->fx_where; - reloc[0]->addend = fixp->fx_offset; - - if (fixp->fx_r_type == BFD_RELOC_RX_32_OP - && fixp->fx_subsy) - { - fixp->fx_r_type = BFD_RELOC_RX_DIFF; - is_opcode = TRUE; - } - else if (sec) - is_opcode = sec->flags & SEC_CODE; - - /* Certain BFD relocations cannot be translated directly into - a single (non-Red Hat) RX relocation, but instead need - multiple RX relocations - handle them here. */ - switch (fixp->fx_r_type) - { - case BFD_RELOC_RX_DIFF: - reloc[0]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_SYM); - - reloc[1] = (arelent *) xmalloc (sizeof (arelent)); - reloc[1]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); - * reloc[1]->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_subsy); - reloc[1]->address = fixp->fx_frag->fr_address + fixp->fx_where; - reloc[1]->addend = 0; - reloc[1]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_SYM); - - reloc[2] = (arelent *) xmalloc (sizeof (arelent)); - reloc[2]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_OP_SUBTRACT); - reloc[2]->addend = 0; - reloc[2]->sym_ptr_ptr = reloc[1]->sym_ptr_ptr; - reloc[2]->address = fixp->fx_frag->fr_address + fixp->fx_where; - - reloc[3] = (arelent *) xmalloc (sizeof (arelent)); - switch (fixp->fx_size) - { - case 1: - reloc[3]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_ABS8); - break; - case 2: - if (!is_opcode && target_big_endian) - reloc[3]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_ABS16_REV); - else if (is_opcode) - reloc[3]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_ABS16UL); - else - reloc[3]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_ABS16); - break; - case 4: - if (!is_opcode && target_big_endian) - reloc[3]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_ABS32_REV); - else - reloc[3]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_ABS32); - break; - } - reloc[3]->addend = 0; - reloc[3]->sym_ptr_ptr = reloc[1]->sym_ptr_ptr; - reloc[3]->address = fixp->fx_frag->fr_address + fixp->fx_where; - - reloc[4] = NULL; - break; - - case BFD_RELOC_RX_GPRELL: - reloc[0]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_SYM); - - reloc[1] = (arelent *) xmalloc (sizeof (arelent)); - reloc[1]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); - if (gp_symbol == NULL) - { - if (symbol_table_frozen) - { - symbolS * gp; - - gp = symbol_find ("__gp"); - if (gp == NULL) - as_bad (("unable to create __gp symbol: please re-assemble with the -msmall-data-limit option specified")); - else - gp_symbol = symbol_get_bfdsym (gp); - } - else - gp_symbol = symbol_get_bfdsym (symbol_find_or_make ("__gp")); - } - * reloc[1]->sym_ptr_ptr = gp_symbol; - reloc[1]->address = fixp->fx_frag->fr_address + fixp->fx_where; - reloc[1]->addend = 0; - reloc[1]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_SYM); - - reloc[2] = (arelent *) xmalloc (sizeof (arelent)); - reloc[2]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_OP_SUBTRACT); - reloc[2]->addend = 0; - reloc[2]->sym_ptr_ptr = reloc[1]->sym_ptr_ptr; - reloc[2]->address = fixp->fx_frag->fr_address + fixp->fx_where; - - reloc[3] = (arelent *) xmalloc (sizeof (arelent)); - reloc[3]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_ABS16UL); - reloc[3]->addend = 0; - reloc[3]->sym_ptr_ptr = reloc[1]->sym_ptr_ptr; - reloc[3]->address = fixp->fx_frag->fr_address + fixp->fx_where; - - reloc[4] = NULL; - break; - - case BFD_RELOC_RX_GPRELW: - reloc[0]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_SYM); - - reloc[1] = (arelent *) xmalloc (sizeof (arelent)); - reloc[1]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); - if (gp_symbol == NULL) - { - if (symbol_table_frozen) - { - symbolS * gp; - - gp = symbol_find ("__gp"); - if (gp == NULL) - as_bad (("unable to create __gp symbol: please re-assemble with the -msmall-data-limit option specified")); - else - gp_symbol = symbol_get_bfdsym (gp); - } - else - gp_symbol = symbol_get_bfdsym (symbol_find_or_make ("__gp")); - } - * reloc[1]->sym_ptr_ptr = gp_symbol; - reloc[1]->address = fixp->fx_frag->fr_address + fixp->fx_where; - reloc[1]->addend = 0; - reloc[1]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_SYM); - - reloc[2] = (arelent *) xmalloc (sizeof (arelent)); - reloc[2]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_OP_SUBTRACT); - reloc[2]->addend = 0; - reloc[2]->sym_ptr_ptr = reloc[1]->sym_ptr_ptr; - reloc[2]->address = fixp->fx_frag->fr_address + fixp->fx_where; - - reloc[3] = (arelent *) xmalloc (sizeof (arelent)); - reloc[3]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_ABS16UW); - reloc[3]->addend = 0; - reloc[3]->sym_ptr_ptr = reloc[1]->sym_ptr_ptr; - reloc[3]->address = fixp->fx_frag->fr_address + fixp->fx_where; - - reloc[4] = NULL; - break; - - case BFD_RELOC_RX_GPRELB: - reloc[0]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_SYM); - - reloc[1] = (arelent *) xmalloc (sizeof (arelent)); - reloc[1]->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); - if (gp_symbol == NULL) - { - if (symbol_table_frozen) - { - symbolS * gp; - - gp = symbol_find ("__gp"); - if (gp == NULL) - as_bad (("unable to create __gp symbol: please re-assemble with the -msmall-data-limit option specified")); - else - gp_symbol = symbol_get_bfdsym (gp); - } - else - gp_symbol = symbol_get_bfdsym (symbol_find_or_make ("__gp")); - } - * reloc[1]->sym_ptr_ptr = gp_symbol; - reloc[1]->address = fixp->fx_frag->fr_address + fixp->fx_where; - reloc[1]->addend = 0; - reloc[1]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_SYM); - - reloc[2] = (arelent *) xmalloc (sizeof (arelent)); - reloc[2]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_OP_SUBTRACT); - reloc[2]->addend = 0; - reloc[2]->sym_ptr_ptr = reloc[1]->sym_ptr_ptr; - reloc[2]->address = fixp->fx_frag->fr_address + fixp->fx_where; - - reloc[3] = (arelent *) xmalloc (sizeof (arelent)); - reloc[3]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_ABS16U); - reloc[3]->addend = 0; - reloc[3]->sym_ptr_ptr = reloc[1]->sym_ptr_ptr; - reloc[3]->address = fixp->fx_frag->fr_address + fixp->fx_where; - - reloc[4] = NULL; - break; - - case BFD_RELOC_RX_NEG32: - reloc[0]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_SYM); - - reloc[1] = (arelent *) xmalloc (sizeof (arelent)); - reloc[1]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_OP_NEG); - reloc[1]->addend = 0; - reloc[1]->sym_ptr_ptr = reloc[0]->sym_ptr_ptr; - reloc[1]->address = fixp->fx_frag->fr_address + fixp->fx_where; - - reloc[2] = (arelent *) xmalloc (sizeof (arelent)); - reloc[2]->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_RX_ABS32); - reloc[2]->addend = 0; - reloc[2]->sym_ptr_ptr = reloc[0]->sym_ptr_ptr; - reloc[2]->address = fixp->fx_frag->fr_address + fixp->fx_where; - - reloc[3] = NULL; - break; - - default: - reloc[0]->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type); - reloc[1] = NULL; - break; - } - - return reloc; -} - -/* Set the ELF specific flags. */ - -void -rx_elf_final_processing (void) -{ - elf_elfheader (stdoutput)->e_flags |= elf_flags; -} - -/* Scan the current input line for occurances of Renesas - local labels and replace them with the GAS version. */ - -void -rx_start_line (void) -{ - int in_double_quote = 0; - int in_single_quote = 0; - int done = 0; - char * p = input_line_pointer; - - /* Scan the line looking for question marks. Skip past quote enclosed regions. */ - do - { - switch (*p) - { - case '\n': - case 0: - done = 1; - break; - - case '"': - in_double_quote = ! in_double_quote; - break; - - case '\'': - in_single_quote = ! in_single_quote; - break; - - case '?': - if (in_double_quote || in_single_quote) - break; - - if (p[1] == ':') - *p = '1'; - else if (p[1] == '+') - { - p[0] = '1'; - p[1] = 'f'; - } - else if (p[1] == '-') - { - p[0] = '1'; - p[1] = 'b'; - } - break; - - default: - break; - } - - p ++; - } - while (! done); -} -- cgit v1.2.3