X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=gas%2Fconfig%2Fobj-ecoff.c;h=90fc5745127098715990f25b324e066b955abdc1;hb=a2c5833233df078288c791c348a265c96c6182da;hp=64892431ad70ab507f03706d3612dfb00c7d80ba;hpb=fed9b18aea1b56266dfef2eaa613e0055eb6aa12;p=thirdparty%2Fbinutils-gdb.git diff --git a/gas/config/obj-ecoff.c b/gas/config/obj-ecoff.c index 64892431ad7..90fc5745127 100644 --- a/gas/config/obj-ecoff.c +++ b/gas/config/obj-ecoff.c @@ -1,5 +1,5 @@ /* ECOFF object file format. - Copyright (C) 1993, 94, 95, 96, 97, 98, 1999 Free Software Foundation, Inc. + Copyright (C) 1993-2022 Free Software Foundation, Inc. Contributed by Cygnus Support. This file was put together by Ian Lance Taylor . @@ -7,7 +7,7 @@ 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 2, or (at your option) + 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, @@ -17,97 +17,27 @@ 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, 59 Temple Place - Suite 330, Boston, MA - 02111-1307, USA. */ + Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA + 02110-1301, USA. */ #define OBJ_HEADER "obj-ecoff.h" #include "as.h" #include "coff/internal.h" #include "bfd/libcoff.h" #include "bfd/libecoff.h" +#include "bfd/ecoff-bfd.h" /* Almost all of the ECOFF support is actually in ecoff.c in the main gas directory. This file mostly just arranges to call that one at the right times. */ -static int ecoff_sec_sym_ok_for_reloc PARAMS ((asection *)); -static void obj_ecoff_frob_symbol PARAMS ((symbolS *, int *)); -static void ecoff_pop_insert PARAMS ((void)); - -/* These are the pseudo-ops we support in this file. Only those - relating to debugging information are supported here. - - The following pseudo-ops from the Kane and Heinrich MIPS book - should be defined here, but are currently unsupported: .aent, - .bgnb, .endb, .verstamp, .vreg. - - The following pseudo-ops from the Kane and Heinrich MIPS book are - MIPS CPU specific, and should be defined by tc-mips.c: .alias, - .extern, .galive, .gjaldef, .gjrlive, .livereg, .noalias, .option, - .rdata, .sdata, .set. - - The following pseudo-ops from the Kane and Heinrich MIPS book are - not MIPS CPU specific, but are also not ECOFF specific. I have - only listed the ones which are not already in read.c. It's not - completely clear where these should be defined, but tc-mips.c is - probably the most reasonable place: .asciiz, .asm0, .endr, .err, - .half, .lab, .repeat, .struct, .weakext. */ - -const pseudo_typeS obj_pseudo_table[] = -{ - /* COFF style debugging information. .ln is not used; .loc is used - instead. */ - { "def", ecoff_directive_def, 0 }, - { "dim", ecoff_directive_dim, 0 }, - { "endef", ecoff_directive_endef, 0 }, - { "file", ecoff_directive_file, 0 }, - { "scl", ecoff_directive_scl, 0 }, - { "size", ecoff_directive_size, 0 }, - { "esize", ecoff_directive_size, 0 }, - { "tag", ecoff_directive_tag, 0 }, - { "type", ecoff_directive_type, 0 }, - { "etype", ecoff_directive_type, 0 }, - { "val", ecoff_directive_val, 0 }, - - /* ECOFF specific debugging information. */ - { "begin", ecoff_directive_begin, 0 }, - { "bend", ecoff_directive_bend, 0 }, - { "end", ecoff_directive_end, 0 }, - { "ent", ecoff_directive_ent, 0 }, - { "fmask", ecoff_directive_fmask, 0 }, - { "frame", ecoff_directive_frame, 0 }, - { "loc", ecoff_directive_loc, 0 }, - { "mask", ecoff_directive_mask, 0 }, - - /* Other ECOFF directives. */ - { "extern", ecoff_directive_extern, 0 }, - -#ifndef TC_MIPS - /* For TC_MIPS, tc-mips.c adds this. */ - { "weakext", ecoff_directive_weakext, 0 }, -#endif - - /* These are used on Irix. I don't know how to implement them. */ - { "bgnb", s_ignore, 0 }, - { "endb", s_ignore, 0 }, - { "verstamp", s_ignore, 0 }, - - /* Sentinel. */ - { NULL } -}; - -/* Swap out the symbols and debugging information for BFD. */ +/* Set section VMAs and GP values before reloc processing. */ void -ecoff_frob_file () +ecoff_frob_file_before_fix (void) { - const struct ecoff_debug_swap * const debug_swap - = &ecoff_backend (stdoutput)->debug_swap; bfd_vma addr; asection *sec; - HDRR *hdr; - char *buf; - char *set; /* Set the section VMA values. We force the .sdata and .sbss sections to the end to ensure that their VMA addresses are close @@ -124,14 +54,15 @@ ecoff_frob_file () This output ordering of sections is magic, on the Alpha, at least. The .lita section must come before .lit8 and .lit4, otherwise the OSF/1 linker may silently trash the .lit{4,8} - section contents. Also, .text must preceed .rdata. These differ + section contents. Also, .text must precede .rdata. These differ from the order described in some parts of the DEC OSF/1 Assembly Language Programmer's Guide, but that order doesn't seem to work with their linker. I don't know if section ordering on the MIPS is important. */ - static const char *const names[] = { + static const char *const names[] = + { /* text segment */ ".text", ".rdata", ".init", ".fini", /* data segment */ @@ -139,85 +70,40 @@ ecoff_frob_file () /* bss segment */ ".sbss", ".bss", }; -#define n_names (sizeof (names) / sizeof (names[0])) +#define n_names ((int) (sizeof (names) / sizeof (names[0]))) + + /* Sections that match names, order to be straightened out later. */ + asection *secs[n_names]; + int i; addr = 0; - { - /* Sections that match names, order to be straightened out later. */ - asection *secs[n_names]; - /* Linked list of sections with non-matching names. Random ordering. */ - asection *other_sections = 0; - /* Pointer to next section, since we're destroying the original - ordering. */ - asection *next; - - int i; - - for (i = 0; i < n_names; i++) - secs[i] = 0; - for (sec = stdoutput->sections; sec != (asection *) NULL; sec = next) - { - next = sec->next; - for (i = 0; i < n_names; i++) - if (!strcmp (sec->name, names[i])) - { - secs[i] = sec; - break; - } - if (i == n_names) + for (i = 0; i < n_names; i++) + secs[i] = NULL; + + for (sec = stdoutput->sections; sec != NULL; sec = sec->next) + { + for (i = 0; i < n_names; i++) + if (!strcmp (sec->name, names[i])) { - bfd_set_section_vma (stdoutput, sec, addr); - addr += bfd_section_size (stdoutput, sec); - sec->next = other_sections; - other_sections = sec; + secs[i] = sec; + bfd_section_list_remove (stdoutput, sec); + break; } - } - for (i = 0; i < n_names; i++) - if (secs[i]) + if (i == n_names) { - sec = secs[i]; - bfd_set_section_vma (stdoutput, sec, addr); - addr += bfd_section_size (stdoutput, sec); + bfd_set_section_vma (sec, addr); + addr += bfd_section_size (sec); } - for (i = n_names - 1; i >= 0; i--) - if (secs[i]) - { - sec = secs[i]; - sec->next = other_sections; - other_sections = sec; - } - stdoutput->sections = other_sections; - } - - /* Build the ECOFF debugging information. */ - assert (ecoff_data (stdoutput) != 0); - hdr = &ecoff_data (stdoutput)->debug_info.symbolic_header; - ecoff_build_debug (hdr, &buf, debug_swap); - - /* Finish up the ecoff_tdata structure. */ - set = buf; -#define SET(ptr, count, type, size) \ - if (hdr->count == 0) \ - ecoff_data (stdoutput)->debug_info.ptr = (type) NULL; \ - else \ - { \ - ecoff_data (stdoutput)->debug_info.ptr = (type) set; \ - set += hdr->count * size; \ } - - SET (line, cbLine, unsigned char *, sizeof (unsigned char)); - SET (external_dnr, idnMax, PTR, debug_swap->external_dnr_size); - SET (external_pdr, ipdMax, PTR, debug_swap->external_pdr_size); - SET (external_sym, isymMax, PTR, debug_swap->external_sym_size); - SET (external_opt, ioptMax, PTR, debug_swap->external_opt_size); - SET (external_aux, iauxMax, union aux_ext *, sizeof (union aux_ext)); - SET (ss, issMax, char *, sizeof (char)); - SET (ssext, issExtMax, char *, sizeof (char)); - SET (external_rfd, crfd, PTR, debug_swap->external_rfd_size); - SET (external_fdr, ifdMax, PTR, debug_swap->external_fdr_size); - SET (external_ext, iextMax, PTR, debug_swap->external_ext_size); - -#undef SET + for (i = 0; i < n_names; i++) + if (secs[i]) + { + bfd_set_section_vma (secs[i], addr); + addr += bfd_section_size (secs[i]); + } + for (i = n_names - 1; i >= 0; i--) + if (secs[i]) + bfd_section_list_prepend (stdoutput, secs[i]); /* Fill in the register masks. */ { @@ -247,14 +133,54 @@ ecoff_frob_file () } } +/* Swap out the symbols and debugging information for BFD. */ + +void +ecoff_frob_file (void) +{ + const struct ecoff_debug_swap * const debug_swap + = &ecoff_backend (stdoutput)->debug_swap; + bfd_vma addr ATTRIBUTE_UNUSED; + HDRR *hdr; + char *buf; + char *set; + + /* Build the ECOFF debugging information. */ + gas_assert (ecoff_data (stdoutput) != 0); + hdr = &ecoff_data (stdoutput)->debug_info.symbolic_header; + ecoff_build_debug (hdr, &buf, debug_swap); + + /* Finish up the ecoff_tdata structure. */ + set = buf; +#define SET(ptr, count, type, size) \ + if (hdr->count == 0) \ + ecoff_data (stdoutput)->debug_info.ptr = NULL; \ + else \ + { \ + ecoff_data (stdoutput)->debug_info.ptr = (type) set; \ + set += hdr->count * size; \ + } + + SET (line, cbLine, unsigned char *, sizeof (unsigned char)); + SET (external_dnr, idnMax, void *, debug_swap->external_dnr_size); + SET (external_pdr, ipdMax, void *, debug_swap->external_pdr_size); + SET (external_sym, isymMax, void *, debug_swap->external_sym_size); + SET (external_opt, ioptMax, void *, debug_swap->external_opt_size); + SET (external_aux, iauxMax, union aux_ext *, sizeof (union aux_ext)); + SET (ss, issMax, char *, sizeof (char)); + SET (ssext, issExtMax, char *, sizeof (char)); + SET (external_rfd, crfd, void *, debug_swap->external_rfd_size); + SET (external_fdr, ifdMax, void *, debug_swap->external_fdr_size); + SET (external_ext, iextMax, void *, debug_swap->external_ext_size); +#undef SET +} + /* This is called by the ECOFF code to set the external information for a symbol. We just pass it on to BFD, which expects the swapped information to be stored in the native field of the symbol. */ void -obj_ecoff_set_ext (sym, ext) - symbolS *sym; - EXTR *ext; +obj_ecoff_set_ext (symbolS *sym, EXTR *ext) { const struct ecoff_debug_swap * const debug_swap = &ecoff_backend (stdoutput)->debug_swap; @@ -269,42 +195,127 @@ obj_ecoff_set_ext (sym, ext) } static int -ecoff_sec_sym_ok_for_reloc (sec) - asection *sec; +ecoff_sec_sym_ok_for_reloc (asection *sec ATTRIBUTE_UNUSED) { return 1; } static void -obj_ecoff_frob_symbol (sym, puntp) - symbolS *sym; - int *puntp; +obj_ecoff_frob_symbol (symbolS *sym, int *puntp ATTRIBUTE_UNUSED) { ecoff_frob_symbol (sym); } static void -ecoff_pop_insert () +ecoff_pop_insert (void) { pop_insert (obj_pseudo_table); } +static int +ecoff_separate_stab_sections (void) +{ + return 0; +} + +/* These are the pseudo-ops we support in this file. Only those + relating to debugging information are supported here. + + The following pseudo-ops from the Kane and Heinrich MIPS book + should be defined here, but are currently unsupported: .bgnb, + .endb, .verstamp, .vreg. + + The following pseudo-ops from the Kane and Heinrich MIPS book are + MIPS CPU specific, and should be defined by tc-mips.c: .alias, + .extern, .galive, .gjaldef, .gjrlive, .livereg, .noalias, .option, + .rdata, .sdata, .set. + + The following pseudo-ops from the Kane and Heinrich MIPS book are + not MIPS CPU specific, but are also not ECOFF specific. I have + only listed the ones which are not already in read.c. It's not + completely clear where these should be defined, but tc-mips.c is + probably the most reasonable place: .asciiz, .asm0, .endr, .err, + .half, .lab, .repeat, .struct, .weakext. */ + +const pseudo_typeS obj_pseudo_table[] = +{ + /* COFF style debugging information. .ln is not used; .loc is used + instead. */ + { "def", ecoff_directive_def, 0 }, + { "dim", ecoff_directive_dim, 0 }, + { "endef", ecoff_directive_endef, 0 }, + { "file", ecoff_directive_file, 0 }, + { "scl", ecoff_directive_scl, 0 }, + { "size", ecoff_directive_size, 0 }, + { "esize", ecoff_directive_size, 0 }, + { "tag", ecoff_directive_tag, 0 }, + { "type", ecoff_directive_type, 0 }, + { "etype", ecoff_directive_type, 0 }, + { "val", ecoff_directive_val, 0 }, + + /* ECOFF specific debugging information. */ + { "aent", ecoff_directive_ent, 1 }, + { "begin", ecoff_directive_begin, 0 }, + { "bend", ecoff_directive_bend, 0 }, + { "end", ecoff_directive_end, 0 }, + { "ent", ecoff_directive_ent, 0 }, + { "fmask", ecoff_directive_fmask, 0 }, + { "frame", ecoff_directive_frame, 0 }, + { "loc", ecoff_directive_loc, 0 }, + { "mask", ecoff_directive_mask, 0 }, + + /* Other ECOFF directives. */ + { "extern", ecoff_directive_extern, 0 }, + +#ifndef TC_MIPS + /* For TC_MIPS, tc-mips.c adds this. */ + { "weakext", ecoff_directive_weakext, 0 }, +#endif + + /* These are used on Irix. I don't know how to implement them. */ + { "bgnb", s_ignore, 0 }, + { "endb", s_ignore, 0 }, + { "verstamp", s_ignore, 0 }, + + /* Sentinel. */ + { NULL, s_ignore, 0 } +}; + const struct format_ops ecoff_format_ops = { bfd_target_ecoff_flavour, - 0, - 1, + 0, /* dfl_leading_underscore. */ + + /* FIXME: A comment why emit_section_symbols is different here (1) from + the single-format definition (0) would be in order. */ + 1, /* emit_section_symbols. */ + 0, /* begin. */ + ecoff_new_file, obj_ecoff_frob_symbol, ecoff_frob_file, - 0, - 0, 0, - 0, 0, - 0, + 0, /* frob_file_before_adjust. */ + ecoff_frob_file_before_fix, + 0, /* frob_file_after_relocs. */ + 0, /* s_get_size. */ + 0, /* s_set_size. */ + 0, /* s_get_align. */ + 0, /* s_set_align. */ + 0, /* s_get_other. */ + 0, /* s_set_other. */ + 0, /* s_get_desc. */ + 0, /* s_set_desc. */ + 0, /* s_get_type. */ + 0, /* s_set_type. */ + 0, /* copy_symbol_attributes. */ ecoff_generate_asm_lineno, ecoff_stab, + ecoff_separate_stab_sections, + 0, /* init_stab_section. */ ecoff_sec_sym_ok_for_reloc, ecoff_pop_insert, ecoff_set_ext, ecoff_read_begin_hook, ecoff_symbol_new_hook, + ecoff_symbol_clone_hook, + 0 /* adjust_symtab. */ };