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Diffstat (limited to 'gas/config/obj-ecoff.c')
| -rw-r--r-- | gas/config/obj-ecoff.c | 310 |
1 files changed, 0 insertions, 310 deletions
diff --git a/gas/config/obj-ecoff.c b/gas/config/obj-ecoff.c deleted file mode 100644 index 64892431ad7..00000000000 --- a/gas/config/obj-ecoff.c +++ /dev/null @@ -1,310 +0,0 @@ -/* ECOFF object file format. - Copyright (C) 1993, 94, 95, 96, 97, 98, 1999 Free Software Foundation, Inc. - Contributed by Cygnus Support. - This file was put together by Ian Lance Taylor <ian@cygnus.com>. - - This file is part of GAS. - - 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) - 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, 59 Temple Place - Suite 330, Boston, MA - 02111-1307, USA. */ - -#define OBJ_HEADER "obj-ecoff.h" -#include "as.h" -#include "coff/internal.h" -#include "bfd/libcoff.h" -#include "bfd/libecoff.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. */ - -void -ecoff_frob_file () -{ - 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 - together so that the GP register can address both of them. We - put the .bss section after the .sbss section. - - Also, for the Alpha, we must sort the sections, to make sure they - appear in the output file in the correct order. (Actually, maybe - this is a job for BFD. But the VMAs computed would be out of - whack if we computed them given our initial, random ordering. - It's possible that that wouldn't break things; I could do some - experimenting sometime and find out. - - 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 - 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[] = { - /* text segment */ - ".text", ".rdata", ".init", ".fini", - /* data segment */ - ".data", ".lita", ".lit8", ".lit4", ".sdata", ".got", - /* bss segment */ - ".sbss", ".bss", - }; -#define n_names (sizeof (names) / sizeof (names[0])) - - 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) - { - bfd_set_section_vma (stdoutput, sec, addr); - addr += bfd_section_size (stdoutput, sec); - sec->next = other_sections; - other_sections = sec; - } - } - for (i = 0; i < n_names; i++) - if (secs[i]) - { - sec = secs[i]; - bfd_set_section_vma (stdoutput, sec, addr); - addr += bfd_section_size (stdoutput, 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 - - /* Fill in the register masks. */ - { - unsigned long gprmask = 0; - unsigned long fprmask = 0; - unsigned long *cprmask = NULL; - -#ifdef TC_MIPS - /* Fill in the MIPS register masks. It's probably not worth - setting up a generic interface for this. */ - gprmask = mips_gprmask; - cprmask = mips_cprmask; -#endif - -#ifdef TC_ALPHA - alpha_frob_ecoff_data (); - - if (! bfd_ecoff_set_gp_value (stdoutput, alpha_gp_value)) - as_fatal (_("Can't set GP value")); - - gprmask = alpha_gprmask; - fprmask = alpha_fprmask; -#endif - - if (! bfd_ecoff_set_regmasks (stdoutput, gprmask, fprmask, cprmask)) - as_fatal (_("Can't set register masks")); - } -} - -/* 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; -{ - const struct ecoff_debug_swap * const debug_swap - = &ecoff_backend (stdoutput)->debug_swap; - ecoff_symbol_type *esym; - - know (bfd_asymbol_flavour (symbol_get_bfdsym (sym)) - == bfd_target_ecoff_flavour); - esym = ecoffsymbol (symbol_get_bfdsym (sym)); - esym->local = false; - esym->native = xmalloc (debug_swap->external_ext_size); - (*debug_swap->swap_ext_out) (stdoutput, ext, esym->native); -} - -static int -ecoff_sec_sym_ok_for_reloc (sec) - asection *sec; -{ - return 1; -} - -static void -obj_ecoff_frob_symbol (sym, puntp) - symbolS *sym; - int *puntp; -{ - ecoff_frob_symbol (sym); -} - -static void -ecoff_pop_insert () -{ - pop_insert (obj_pseudo_table); -} - -const struct format_ops ecoff_format_ops = -{ - bfd_target_ecoff_flavour, - 0, - 1, - obj_ecoff_frob_symbol, - ecoff_frob_file, - 0, - 0, 0, - 0, 0, - 0, - ecoff_generate_asm_lineno, - ecoff_stab, - ecoff_sec_sym_ok_for_reloc, - ecoff_pop_insert, - ecoff_set_ext, - ecoff_read_begin_hook, - ecoff_symbol_new_hook, -}; |