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- /* coff object file format
- Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
-
- 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #include "as.h"
-
- #include "obstack.h"
-
- #ifndef BFD_ASSEMBLER
- lineno *lineno_rootP;
-
- const short seg_N_TYPE[] =
- { /* in: segT out: N_TYPE bits */
- C_ABS_SECTION,
- C_TEXT_SECTION,
- C_DATA_SECTION,
- C_BSS_SECTION,
- C_UNDEF_SECTION, /* SEG_UNKNOWN */
- C_UNDEF_SECTION, /* SEG_ABSENT */
- C_UNDEF_SECTION, /* SEG_PASS1 */
- C_UNDEF_SECTION, /* SEG_GOOF */
- C_UNDEF_SECTION, /* SEG_BIG */
- C_UNDEF_SECTION, /* SEG_DIFFERENCE */
- C_DEBUG_SECTION, /* SEG_DEBUG */
- C_NTV_SECTION, /* SEG_NTV */
- C_PTV_SECTION, /* SEG_PTV */
- C_REGISTER_SECTION, /* SEG_REGISTER */
- };
-
-
- /* Add 4 to the real value to get the index and compensate the negatives */
-
- const segT N_TYPE_seg[32] =
- {
- SEG_PTV, /* C_PTV_SECTION == -4 */
- SEG_NTV, /* C_NTV_SECTION == -3 */
- SEG_DEBUG, /* C_DEBUG_SECTION == -2 */
- SEG_ABSOLUTE, /* C_ABS_SECTION == -1 */
- SEG_UNKNOWN, /* C_UNDEF_SECTION == 0 */
- SEG_TEXT, /* C_TEXT_SECTION == 1 */
- SEG_DATA, /* C_DATA_SECTION == 2 */
- SEG_BSS, /* C_BSS_SECTION == 3 */
- SEG_REGISTER, /* C_REGISTER_SECTION == 4 */
- SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF,
- SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF,
- SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF
- };
- #endif
-
- char *s_get_name PARAMS ((symbolS * s));
- static symbolS *tag_find_or_make PARAMS ((char *name));
- static symbolS *tag_find PARAMS ((char *name));
- #ifdef BFD_HEADERS
- static void obj_coff_section_header_append PARAMS ((char **where, struct internal_scnhdr * header));
- #else
- static void obj_coff_section_header_append PARAMS ((char **where, SCNHDR * header));
- #endif
- static void obj_coff_def PARAMS ((int what));
- static void obj_coff_dim PARAMS ((void));
- static void obj_coff_endef PARAMS ((void));
- static void obj_coff_line PARAMS ((void));
- static void obj_coff_ln PARAMS ((void));
- static void obj_coff_scl PARAMS ((void));
- static void obj_coff_size PARAMS ((void));
- static void obj_coff_stab PARAMS ((int what));
- static void obj_coff_tag PARAMS ((void));
- static void obj_coff_type PARAMS ((void));
- static void obj_coff_val PARAMS ((void));
- static void tag_init PARAMS ((void));
- static void tag_insert PARAMS ((char *name, symbolS * symbolP));
-
- #ifdef BFD_ASSEMBLER
- static void SA_SET_SYM_ENDNDX PARAMS ((symbolS *, symbolS *));
- static void SA_SET_SYM_TAGNDX PARAMS ((symbolS *, symbolS *));
- #endif
-
- int line_base;
-
- static struct hash_control *tag_hash;
- static symbolS *def_symbol_in_progress;
-
- const pseudo_typeS obj_pseudo_table[] =
- {
- #ifndef IGNORE_DEBUG
- {"def", obj_coff_def, 0},
- {"dim", obj_coff_dim, 0},
- {"endef", obj_coff_endef, 0},
- {"line", obj_coff_line, 0},
- {"ln", obj_coff_ln, 0},
- {"scl", obj_coff_scl, 0},
- {"size", obj_coff_size, 0},
- {"tag", obj_coff_tag, 0},
- {"type", obj_coff_type, 0},
- {"val", obj_coff_val, 0},
- #else
- {"def", s_ignore, 0},
- {"dim", s_ignore, 0},
- {"endef", s_ignore, 0},
- {"line", s_ignore, 0},
- {"ln", s_ignore, 0},
- {"scl", s_ignore, 0},
- {"size", s_ignore, 0},
- {"tag", s_ignore, 0},
- {"type", s_ignore, 0},
- {"val", s_ignore, 0},
- #endif /* ignore debug */
-
- {"ident", s_ignore, 0}, /* we don't yet handle this. */
-
-
- /* stabs aka a.out aka b.out directives for debug symbols.
- Currently ignored silently. Except for .line at which
- we guess from context. */
- {"desc", s_ignore, 0}, /* def */
- {"stabd", obj_coff_stab, 'd'},/* stabs */
- {"stabn", obj_coff_stab, 'n'},/* stabs */
- {"stabs", obj_coff_stab, 's'},/* stabs */
-
- /* stabs-in-coff (?) debug pseudos (ignored) */
- {"optim", s_ignore, 0}, /* For sun386i cc (?) */
- /* other stuff */
- {"ABORT", s_abort, 0},
-
- {NULL} /* end sentinel */
- }; /* obj_pseudo_table */
-
- #ifdef BFD_ASSEMBLER
- struct line_no {
- struct line_no *next;
- fragS *frag;
- alent l;
- };
- #endif
-
- #define GET_FILENAME_STRING(X) \
- ((char*)(&((X)->sy_symbol.ost_auxent->x_file.x_n.x_offset))[1])
-
- /* obj dependant output values */
- #ifndef BFD_ASSEMBLER
- #ifdef BFD_HEADERS
- static struct internal_scnhdr bss_section_header;
- struct internal_scnhdr data_section_header;
- struct internal_scnhdr text_section_header;
- #else
- static SCNHDR bss_section_header;
- SCNHDR data_section_header;
- SCNHDR text_section_header;
- #endif
- #endif
-
- #ifdef BFD_ASSEMBLER
-
- /* @@ Ick. */
- static segT
- fetch_coff_debug_section ()
- {
- static segT debug_section;
- if (!debug_section)
- {
- CONST asymbol *s;
- s = bfd_make_debug_symbol (stdoutput, (char *) 0, 0);
- assert (s != 0);
- debug_section = s->section;
- }
- return debug_section;
- }
-
- static void
- SA_SET_SYM_ENDNDX (sym, val)
- symbolS *sym;
- symbolS *val;
- {
- combined_entry_type *entry, *p;
-
- entry = &coffsymbol (sym->bsym)->native[1];
- p = coffsymbol (val->bsym)->native;
- entry->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p = p;
- entry->fix_end = 1;
- }
-
- static void
- SA_SET_SYM_TAGNDX (sym, val)
- symbolS *sym;
- symbolS *val;
- {
- combined_entry_type *entry, *p;
-
- entry = &coffsymbol (sym->bsym)->native[1];
- p = coffsymbol (val->bsym)->native;
- entry->u.auxent.x_sym.x_tagndx.p = p;
- entry->fix_tag = 1;
- }
-
- #else /* ! BFD_ASSEMBLER */
-
- /* Relocation. */
-
- static int
- reloc_compare (p1, p2)
- #ifdef BFD_HEADERS
- struct internal_reloc *p1, *p2;
- #else
- RELOC *p1, *p2;
- #endif
- {
- return (int) (p1->r_vaddr - p2->r_vaddr);
- }
-
- /*
- * emit_relocations()
- *
- * Crawl along a fixS chain. Emit the segment's relocations.
- */
-
- void
- obj_emit_relocations (where, fixP, segment_address_in_file)
- char **where;
- fixS *fixP; /* Fixup chain for this segment. */
- relax_addressT segment_address_in_file;
- {
- #ifdef BFD_HEADERS
- struct internal_reloc *ri_table;
- #else
- RELOC *ri_table;
- #endif
- #ifdef TC_I960
- char *callj_table;
- #endif
- symbolS *symbolP;
- int i, count;
- fixS *p;
-
- for (count = 0, p = fixP; p; p = p->fx_next)
- if (p->fx_addsy)
- count++;
- if (!count)
- return;
-
- #ifdef BFD_HEADERS
- ri_table = (struct internal_reloc *) calloc (sizeof (*ri_table), count);
- #else
- ri_table = (RELOC *) calloc (sizeof (*ri_table), count);
- #endif
- if (!ri_table)
- as_fatal ("obj_emit_relocations: Could not malloc relocation table");
-
- #ifdef TC_I960
- callj_table = (char *) malloc (sizeof (char) * count);
- if (!callj_table)
- as_fatal ("obj_emit_relocations: Could not malloc callj table");
- #endif
-
- for (i = 0; fixP; fixP = fixP->fx_next)
- {
- if (symbolP = fixP->fx_addsy)
- {
- int rtype_ok = 0;
- #if defined(TC_M68K)
- ri_table[i].r_type = (fixP->fx_pcrel ?
- (fixP->fx_size == 1 ? R_PCRBYTE :
- fixP->fx_size == 2 ? R_PCRWORD :
- R_PCRLONG) :
- (fixP->fx_size == 1 ? R_RELBYTE :
- fixP->fx_size == 2 ? R_RELWORD :
- R_RELLONG));
- rtype_ok = 1;
- #endif
- #if defined(TC_I386)
- /* FIXME-SOON R_OFF8 & R_DIR16 are a vague guess, completly
- untested. */
- ri_table[i].r_type = (fixP->fx_pcrel ?
- (fixP->fx_size == 1 ? R_PCRBYTE :
- fixP->fx_size == 2 ? R_PCRWORD :
- R_PCRLONG) :
- (fixP->fx_size == 1 ? R_OFF8 :
- fixP->fx_size == 2 ? R_DIR16 :
- R_DIR32));
- rtype_ok = 1;
- #endif
- #if defined(TC_I960)
- ri_table[i].r_type = (fixP->fx_pcrel
- ? R_IPRMED
- : R_RELLONG);
- callj_table[i] = fixP->fx_callj ? 1 : 0;
- rtype_ok = 1;
- #endif
- #if defined(TC_A29K)
- ri_table[i].r_type = tc_coff_fix2rtype (fixP);
- rtype_ok = 1;
- #endif
- if (!rtype_ok)
- abort ();
- ri_table[i].r_vaddr = (fixP->fx_frag->fr_address
- + fixP->fx_where);
- /* If symbol associated to relocation entry is a bss symbol
- or undefined symbol just remember the index of the symbol.
- Otherwise store the index of the symbol describing the
- section the symbol belong to. This heuristic speeds up ld.
- */
- /* Local symbols can generate relocation information. In case
- of structure return for instance. But they have no symbol
- number because they won't be emitted in the final object.
- In the case where they are in the BSS section, this leads
- to an incorrect r_symndx.
- Under bsd the loader do not care if the symbol reference
- is incorrect. But the SYS V ld complains about this. To
- avoid this we associate the symbol to the associated
- section, *even* if it is the BSS section. */
- /* If someone can tell me why the other symbols of the bss
- section are not associated with the .bss section entry,
- I'd be gratefull. I guess that it has to do with the special
- nature of the .bss section. Or maybe this is because the
- bss symbols are declared in the common section and can
- be resized later. Can it break code some where ? */
- ri_table[i].r_symndx = (S_GET_SEGMENT (symbolP) == SEG_TEXT
- ? dot_text_symbol->sy_number
- : (S_GET_SEGMENT (symbolP) == SEG_DATA
- ? dot_data_symbol->sy_number
- : ((SF_GET_LOCAL (symbolP)
- ? dot_bss_symbol->sy_number
- : symbolP->sy_number)))); /* bss or undefined */
-
- /* md_ri_to_chars((char *) &ri, ri); *//* Last step : write md f */
-
- i++;
- } /* if there's a symbol */
- } /* for each fixP */
-
- /* AIX ld prefer to have the reloc table with r_vaddr sorted.
- But sorting it should not hurt any other ld. */
- qsort (ri_table, count, sizeof (*ri_table), reloc_compare);
-
- for (i = 0; i < count; i++)
- {
- #ifdef BFD_HEADERS
- *where += bfd_coff_swap_reloc_out (stdoutput, &ri_table[i], *where);
- # ifdef TC_A29K
- /* The 29k has a special kludge for the high 16 bit reloc.
- Two relocations are emmited, R_IHIHALF, and R_IHCONST.
- The second one doesn't contain a symbol, but uses the
- value for offset */
- if (ri_table[i].r_type == R_IHIHALF)
- {
- /* now emit the second bit */
- ri_table[i].r_type = R_IHCONST;
- ri_table[i].r_symndx = fixP->fx_addnumber;
- *where += bfd_coff_swap_reloc_out (stdoutput, &ri_table[i],
- *where);
- }
- # endif /* TC_A29K */
-
- #else /* not BFD_HEADERS */
- append (where, (char *) &ri_table[i], RELSZ);
- #endif /* not BFD_HEADERS */
-
- #ifdef TC_I960
- if (callj_table[i])
- {
- ri_table[i].r_type = R_OPTCALL;
- # ifdef BFD_HEADERS
- *where += bfd_coff_swap_reloc_out (stdoutput, &ri_table[i],
- *where);
- # else
- append (where, (char *) &ri_table[i], (unsigned long) RELSZ);
- # endif /* BFD_HEADERS */
- } /* if it's a callj, do it again for the opcode */
- #endif /* TC_I960 */
- }
-
- free (ri_table);
- #ifdef TC_I960
- free (callj_table);
- #endif
-
- return;
- } /* obj_emit_relocations() */
-
- /* Coff file generation & utilities */
-
- #ifdef BFD_HEADERS
- void
- obj_header_append (where, headers)
- char **where;
- object_headers *headers;
- {
- tc_headers_hook (headers);
- *where += bfd_coff_swap_filehdr_out (stdoutput, &(headers->filehdr), *where);
- #ifndef OBJ_COFF_OMIT_OPTIONAL_HEADER
- *where += bfd_coff_swap_aouthdr_out (stdoutput, &(headers->aouthdr), *where);
- #endif
- obj_coff_section_header_append (where, &text_section_header);
- obj_coff_section_header_append (where, &data_section_header);
- obj_coff_section_header_append (where, &bss_section_header);
- }
-
- #else /* ! BFD_HEADERS */
-
- void
- obj_header_append (where, headers)
- char **where;
- object_headers *headers;
- {
- tc_headers_hook (headers);
-
- #ifdef CROSS_COMPILE
- /* Eventually swap bytes for cross compilation for file header */
- md_number_to_chars (*where, headers->filehdr.f_magic, sizeof (headers->filehdr.f_magic));
- *where += sizeof (headers->filehdr.f_magic);
- md_number_to_chars (*where, headers->filehdr.f_nscns, sizeof (headers->filehdr.f_nscns));
- *where += sizeof (headers->filehdr.f_nscns);
- md_number_to_chars (*where, headers->filehdr.f_timdat, sizeof (headers->filehdr.f_timdat));
- *where += sizeof (headers->filehdr.f_timdat);
- md_number_to_chars (*where, headers->filehdr.f_symptr, sizeof (headers->filehdr.f_symptr));
- *where += sizeof (headers->filehdr.f_symptr);
- md_number_to_chars (*where, headers->filehdr.f_nsyms, sizeof (headers->filehdr.f_nsyms));
- *where += sizeof (headers->filehdr.f_nsyms);
- md_number_to_chars (*where, headers->filehdr.f_opthdr, sizeof (headers->filehdr.f_opthdr));
- *where += sizeof (headers->filehdr.f_opthdr);
- md_number_to_chars (*where, headers->filehdr.f_flags, sizeof (headers->filehdr.f_flags));
- *where += sizeof (headers->filehdr.f_flags);
-
- #ifndef OBJ_COFF_OMIT_OPTIONAL_HEADER
- /* Eventually swap bytes for cross compilation for a.out header */
- md_number_to_chars (*where, headers->aouthdr.magic, sizeof (headers->aouthdr.magic));
- *where += sizeof (headers->aouthdr.magic);
- md_number_to_chars (*where, headers->aouthdr.vstamp, sizeof (headers->aouthdr.vstamp));
- *where += sizeof (headers->aouthdr.vstamp);
- md_number_to_chars (*where, headers->aouthdr.tsize, sizeof (headers->aouthdr.tsize));
- *where += sizeof (headers->aouthdr.tsize);
- md_number_to_chars (*where, headers->aouthdr.dsize, sizeof (headers->aouthdr.dsize));
- *where += sizeof (headers->aouthdr.dsize);
- md_number_to_chars (*where, headers->aouthdr.bsize, sizeof (headers->aouthdr.bsize));
- *where += sizeof (headers->aouthdr.bsize);
- md_number_to_chars (*where, headers->aouthdr.entry, sizeof (headers->aouthdr.entry));
- *where += sizeof (headers->aouthdr.entry);
- md_number_to_chars (*where, headers->aouthdr.text_start, sizeof (headers->aouthdr.text_start));
- *where += sizeof (headers->aouthdr.text_start);
- md_number_to_chars (*where, headers->aouthdr.data_start, sizeof (headers->aouthdr.data_start));
- *where += sizeof (headers->aouthdr.data_start);
- md_number_to_chars (*where, headers->aouthdr.tagentries, sizeof (headers->aouthdr.tagentries));
- *where += sizeof (headers->aouthdr.tagentries);
- #endif /* OBJ_COFF_OMIT_OPTIONAL_HEADER */
-
- #else /* CROSS_COMPILE */
-
- append (where, (char *) &headers->filehdr, sizeof (headers->filehdr));
- #ifndef OBJ_COFF_OMIT_OPTIONAL_HEADER
- append (where, (char *) &headers->aouthdr, sizeof (headers->aouthdr));
- #endif /* OBJ_COFF_OMIT_OPTIONAL_HEADER */
-
- #endif /* CROSS_COMPILE */
-
- /* Output the section headers */
- obj_coff_section_header_append (where, &text_section_header);
- obj_coff_section_header_append (where, &data_section_header);
- obj_coff_section_header_append (where, &bss_section_header);
-
- return;
- } /* obj_header_append() */
-
- #endif /* ! BFD_HEADERS */
-
- void
- obj_symbol_to_chars (where, symbolP)
- char **where;
- symbolS *symbolP;
- {
- #ifdef BFD_HEADERS
- unsigned int numaux = symbolP->sy_symbol.ost_entry.n_numaux;
- unsigned int i;
-
- if (S_GET_SEGMENT (symbolP) == SEG_REGISTER)
- {
- S_SET_SEGMENT (symbolP, SEG_ABSOLUTE);
- }
- *where += bfd_coff_swap_sym_out (stdoutput, &symbolP->sy_symbol.ost_entry,
- *where);
-
- for (i = 0; i < numaux; i++)
- {
- *where += bfd_coff_swap_aux_out (stdoutput,
- &symbolP->sy_symbol.ost_auxent[i],
- S_GET_DATA_TYPE (symbolP),
- S_GET_STORAGE_CLASS (symbolP),
- *where);
- }
-
- #else /* BFD_HEADERS */
- SYMENT *syment = &symbolP->sy_symbol.ost_entry;
- int i;
- char numaux = syment->n_numaux;
- unsigned short type = S_GET_DATA_TYPE (symbolP);
-
- #ifdef CROSS_COMPILE
- md_number_to_chars (*where, syment->n_value, sizeof (syment->n_value));
- *where += sizeof (syment->n_value);
- md_number_to_chars (*where, syment->n_scnum, sizeof (syment->n_scnum));
- *where += sizeof (syment->n_scnum);
- md_number_to_chars (*where, 0, sizeof (short)); /* pad n_flags */
- *where += sizeof (short);
- md_number_to_chars (*where, syment->n_type, sizeof (syment->n_type));
- *where += sizeof (syment->n_type);
- md_number_to_chars (*where, syment->n_sclass, sizeof (syment->n_sclass));
- *where += sizeof (syment->n_sclass);
- md_number_to_chars (*where, syment->n_numaux, sizeof (syment->n_numaux));
- *where += sizeof (syment->n_numaux);
- #else /* CROSS_COMPILE */
- append (where, (char *) syment, sizeof (*syment));
- #endif /* CROSS_COMPILE */
-
- /* Should do the following:
- if (.file entry) MD(..)... else if (static entry) MD(..) */
- if (numaux > OBJ_COFF_MAX_AUXENTRIES)
- {
- as_bad ("Internal error? too many auxents for symbol");
- } /* too many auxents */
-
- for (i = 0; i < numaux; ++i)
- {
- #ifdef CROSS_COMPILE
- #if 0 /* This code has never been tested */
- /* The most common case, x_sym entry. */
- if ((SF_GET (symbolP) & (SF_FILE | SF_STATICS)) == 0)
- {
- md_number_to_chars (*where, auxP->x_sym.x_tagndx, sizeof (auxP->x_sym.x_tagndx));
- *where += sizeof (auxP->x_sym.x_tagndx);
- if (ISFCN (type))
- {
- md_number_to_chars (*where, auxP->x_sym.x_misc.x_fsize, sizeof (auxP->x_sym.x_misc.x_fsize));
- *where += sizeof (auxP->x_sym.x_misc.x_fsize);
- }
- else
- {
- md_number_to_chars (*where, auxP->x_sym.x_misc.x_lnno, sizeof (auxP->x_sym.x_misc.x_lnno));
- *where += sizeof (auxP->x_sym.x_misc.x_lnno);
- md_number_to_chars (*where, auxP->x_sym.x_misc.x_size, sizeof (auxP->x_sym.x_misc.x_size));
- *where += sizeof (auxP->x_sym.x_misc.x_size);
- }
- if (ISARY (type))
- {
- register int index;
- for (index = 0; index < DIMNUM; index++)
- md_number_to_chars (*where, auxP->x_sym.x_fcnary.x_ary.x_dimen[index], sizeof (auxP->x_sym.x_fcnary.x_ary.x_dimen[index]));
- *where += sizeof (auxP->x_sym.x_fcnary.x_ary.x_dimen[index]);
- }
- else
- {
- md_number_to_chars (*where, auxP->x_sym.x_fcnary.x_fcn.x_lnnoptr, sizeof (auxP->x_sym.x_fcnary.x_fcn.x_lnnoptr));
- *where += sizeof (auxP->x_sym.x_fcnary.x_fcn.x_lnnoptr);
- md_number_to_chars (*where, auxP->x_sym.x_fcnary.x_fcn.x_endndx, sizeof (auxP->x_sym.x_fcnary.x_fcn.x_endndx));
- *where += sizeof (auxP->x_sym.x_fcnary.x_fcn.x_endndx);
- }
- md_number_to_chars (*where, auxP->x_sym.x_tvndx, sizeof (auxP->x_sym.x_tvndx));
- *where += sizeof (auxP->x_sym.x_tvndx);
- }
- else if (SF_GET_FILE (symbolP))
- { /* .file */
- ;
- }
- else if (SF_GET_STATICS (symbolP))
- { /* .text, .data, .bss symbols */
- md_number_to_chars (*where, auxP->x_scn.x_scnlen, sizeof (auxP->x_scn.x_scnlen));
- *where += sizeof (auxP->x_scn.x_scnlen);
- md_number_to_chars (*where, auxP->x_scn.x_nreloc, sizeof (auxP->x_scn.x_nreloc));
- *where += sizeof (auxP->x_scn.x_nreloc);
- md_number_to_chars (*where, auxP->x_scn.x_nlinno, sizeof (auxP->x_scn.x_nlinno));
- *where += sizeof (auxP->x_scn.x_nlinno);
- }
- #endif /* 0 */
- #else /* CROSS_COMPILE */
- append (where, (char *) &symbolP->sy_symbol.ost_auxent[i], sizeof (symbolP->sy_symbol.ost_auxent[i]));
- #endif /* CROSS_COMPILE */
-
- }; /* for each aux in use */
- #endif /* BFD_HEADERS */
- return;
- } /* obj_symbol_to_chars() */
-
- #ifdef BFD_HEADERS
- static void
- obj_coff_section_header_append (where, header)
- char **where;
- struct internal_scnhdr *header;
- {
- *where += bfd_coff_swap_scnhdr_out (stdoutput, header, *where);
- }
-
- #else
- static void
- obj_coff_section_header_append (where, header)
- char **where;
- SCNHDR *header;
- {
- #ifdef CROSS_COMPILE
- memcpy (*where, header->s_name, sizeof (header->s_name));
- *where += sizeof (header->s_name);
-
- md_number_to_chars (*where, header->s_paddr, sizeof (header->s_paddr));
- *where += sizeof (header->s_paddr);
-
- md_number_to_chars (*where, header->s_vaddr, sizeof (header->s_vaddr));
- *where += sizeof (header->s_vaddr);
-
- md_number_to_chars (*where, header->s_size, sizeof (header->s_size));
- *where += sizeof (header->s_size);
-
- md_number_to_chars (*where, header->s_scnptr, sizeof (header->s_scnptr));
- *where += sizeof (header->s_scnptr);
-
- md_number_to_chars (*where, header->s_relptr, sizeof (header->s_relptr));
- *where += sizeof (header->s_relptr);
-
- md_number_to_chars (*where, header->s_lnnoptr, sizeof (header->s_lnnoptr));
- *where += sizeof (header->s_lnnoptr);
-
- md_number_to_chars (*where, header->s_nreloc, sizeof (header->s_nreloc));
- *where += sizeof (header->s_nreloc);
-
- md_number_to_chars (*where, header->s_nlnno, sizeof (header->s_nlnno));
- *where += sizeof (header->s_nlnno);
-
- md_number_to_chars (*where, header->s_flags, sizeof (header->s_flags));
- *where += sizeof (header->s_flags);
-
- #ifdef TC_I960
- md_number_to_chars (*where, header->s_align, sizeof (header->s_align));
- *where += sizeof (header->s_align);
- #endif /* TC_I960 */
-
- #else /* CROSS_COMPILE */
-
- append (where, (char *) header, sizeof (*header));
-
- #endif /* CROSS_COMPILE */
-
- return;
- } /* obj_coff_section_header_append() */
-
- #endif
- void
- obj_emit_symbols (where, symbol_rootP)
- char **where;
- symbolS *symbol_rootP;
- {
- symbolS *symbolP;
- /*
- * Emit all symbols left in the symbol chain.
- */
- for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP))
- {
- /* Used to save the offset of the name. It is used to point
- to the string in memory but must be a file offset. */
- register char *temp;
-
- tc_coff_symbol_emit_hook (symbolP);
-
- temp = S_GET_NAME (symbolP);
- if (SF_GET_STRING (symbolP))
- {
- S_SET_OFFSET (symbolP, symbolP->sy_name_offset);
- S_SET_ZEROES (symbolP, 0);
- }
- else
- {
- memset (symbolP->sy_symbol.ost_entry.n_name, '\0', SYMNMLEN);
- strncpy (symbolP->sy_symbol.ost_entry.n_name, temp, SYMNMLEN);
- }
- obj_symbol_to_chars (where, symbolP);
- S_SET_NAME (symbolP, temp);
- }
- } /* obj_emit_symbols() */
-
- #endif /* ! BFD_ASSEMBLER */
-
- /* Merge a debug symbol containing debug information into a normal symbol. */
-
- void
- c_symbol_merge (debug, normal)
- symbolS *debug;
- symbolS *normal;
- {
- S_SET_DATA_TYPE (normal, S_GET_DATA_TYPE (debug));
- S_SET_STORAGE_CLASS (normal, S_GET_STORAGE_CLASS (debug));
-
- if (S_GET_NUMBER_AUXILIARY (debug) > S_GET_NUMBER_AUXILIARY (normal))
- /* take the most we have */
- S_SET_NUMBER_AUXILIARY (normal, S_GET_NUMBER_AUXILIARY (debug));
-
- if (S_GET_NUMBER_AUXILIARY (debug) > 0)
- {
- /* Move all the auxiliary information. */
- #ifdef BFD_ASSEMBLER
- /* @@ How many fields do we want to preserve? Would it make more
- sense to pick and choose those we want to copy? Should look
- into this further.... [raeburn:19920512.2209EST] */
- alent *linenos;
- linenos = coffsymbol (normal->bsym)->lineno;
- memcpy ((char *) &coffsymbol (normal->bsym)->native,
- (char *) &coffsymbol (debug->bsym)->native,
- S_GET_NUMBER_AUXILIARY(debug) * AUXESZ);
- coffsymbol (normal->bsym)->lineno = linenos;
- #else
- memcpy ((char *) &normal->sy_symbol.ost_auxent[0],
- (char *) &debug->sy_symbol.ost_auxent[0],
- S_GET_NUMBER_AUXILIARY (debug) * AUXESZ);
- #endif
- }
-
- /* Move the debug flags. */
- SF_SET_DEBUG_FIELD (normal, SF_GET_DEBUG_FIELD (debug));
- } /* c_symbol_merge() */
-
- static symbolS *previous_file_symbol;
- void
- c_dot_file_symbol (filename)
- char *filename;
- {
- symbolS *symbolP;
-
- #ifdef BFD_ASSEMBLER
- symbolP = symbol_new (filename, &bfd_abs_section, 0,
- &zero_address_frag);
- #else
- symbolP = symbol_new (".file",
- SEG_DEBUG,
- 0,
- &zero_address_frag);
- #endif
-
- S_SET_STORAGE_CLASS (symbolP, C_FILE);
- S_SET_NUMBER_AUXILIARY (symbolP, 1);
-
- #ifdef BFD_ASSEMBLER
- symbolP->bsym->flags = BSF_DEBUGGING;
- #else
- if (strlen(filename) > 14)
- {
- /* This won't fit into a 14 char space, it will go into the string
- table. */
- symbolP->sy_symbol.ost_auxent->x_file.x_n.x_zeroes = 0;
- (&(symbolP->sy_symbol.ost_auxent->x_file.x_n.x_offset))[0] = string_byte_count;
- (&(symbolP->sy_symbol.ost_auxent->x_file.x_n.x_offset))[1] = (int)filename;
- }
- else
- {
- SA_SET_FILE_FNAME (symbolP, filename);
- }
- SF_SET_DEBUG (symbolP);
- #endif
-
- #ifndef NO_LISTING
- {
- extern int listing;
- if (listing)
- {
- listing_source_file (filename);
- }
- }
- #endif
-
- S_SET_VALUE (symbolP, (long) previous_file_symbol);
-
- previous_file_symbol = symbolP;
-
- /* Make sure that the symbol is first on the symbol chain */
- if (symbol_rootP != symbolP)
- {
- if (symbolP == symbol_lastP)
- {
- symbol_lastP = symbol_lastP->sy_previous;
- } /* if it was the last thing on the list */
-
- symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
- symbol_insert (symbolP, symbol_rootP, &symbol_rootP, &symbol_lastP);
- symbol_rootP = symbolP;
- } /* if not first on the list */
- }
-
- /*
- * Build a 'section static' symbol.
- */
-
- char *
- c_section_symbol (name, value, length, nreloc, nlnno)
- char *name;
- long value;
- long length;
- unsigned short nreloc;
- unsigned short nlnno;
- {
- symbolS *symbolP;
-
- symbolP = symbol_new (name,
- (name[1] == 't'
- ? text_section
- : name[1] == 'd'
- ? data_section
- : bss_section),
- value,
- &zero_address_frag);
-
- S_SET_STORAGE_CLASS (symbolP, C_STAT);
- S_SET_NUMBER_AUXILIARY (symbolP, 1);
-
- SA_SET_SCN_SCNLEN (symbolP, length);
- SA_SET_SCN_NRELOC (symbolP, nreloc);
- SA_SET_SCN_NLINNO (symbolP, nlnno);
-
- SF_SET_STATICS (symbolP);
-
- return (char *) symbolP;
- } /* c_section_symbol() */
-
- void
- c_section_header (header,
- name,
- core_address,
- size,
- data_ptr,
- reloc_ptr,
- lineno_ptr,
- reloc_number,
- lineno_number,
- alignment)
- #ifdef BFD_HEADERS
- struct internal_scnhdr *header;
- #else
- SCNHDR *header;
- #endif
- char *name;
- long core_address;
- long size;
- long data_ptr;
- long reloc_ptr;
- long lineno_ptr;
- long reloc_number;
- long lineno_number;
- long alignment;
- {
- strncpy (header->s_name, name, 8);
- header->s_paddr = header->s_vaddr = core_address;
- header->s_scnptr = ((header->s_size = size) != 0) ? data_ptr : 0;
- header->s_relptr = reloc_ptr;
- header->s_lnnoptr = lineno_ptr;
- header->s_nreloc = reloc_number;
- header->s_nlnno = lineno_number;
-
- #ifdef OBJ_COFF_SECTION_HEADER_HAS_ALIGNMENT
- #ifdef OBJ_COFF_BROKEN_ALIGNMENT
- header->s_align = ((name[1] == 'b' || (size > 0)) ? 16 : 0);
- #else
- header->s_align = ((alignment == 0)
- ? 0
- : (1 << alignment));
- #endif /* OBJ_COFF_BROKEN_ALIGNMENT */
- #endif /* OBJ_COFF_SECTION_HEADER_HAS_ALIGNMENT */
-
- header->s_flags = STYP_REG | (name[1] == 't'
- ? STYP_TEXT
- : name[1] == 'd'
- ? STYP_DATA
- : name[1] == 'b'
- ? STYP_BSS
- : STYP_INFO);
- }
-
- /* Line number handling */
-
- #ifdef BFD_ASSEMBLER
-
- /* Symbol of last function, which we should hang line#s off of. */
- symbolS *function_lineoff;
-
- #else
-
- /* Offset in line#s where the last function started (the odd entry for
- line #0). */
- int function_lineoff = -1;
-
- int text_lineno_number;
-
- /* We use this to build pointers from .bf's into the linetable. It
- should match exactly the values that are later assigned in
- text_lineno_number by write.c. */
- int our_lineno_number;
-
- lineno *lineno_lastP;
- #endif
-
- #ifndef BFD_ASSEMBLER
- int
- c_line_new (paddr, line_number, frag)
- long paddr;
- unsigned short line_number;
- fragS *frag;
- {
- lineno *new_line = (lineno *) xmalloc (sizeof (lineno));
-
- new_line->line.l_addr.l_paddr = paddr;
- new_line->line.l_lnno = line_number;
- new_line->frag = (char *) frag;
- new_line->next = (lineno *) 0;
-
- if (lineno_rootP == (lineno *) 0)
- lineno_rootP = new_line;
- else
- lineno_lastP->next = new_line;
- lineno_lastP = new_line;
- return LINESZ * our_lineno_number++;
- }
- #endif
-
- void
- obj_emit_lineno (where, line, file_start)
- char **where;
- #ifndef BFD_ASSEMBLER /* sigh */
- lineno *line;
- #endif
- char *file_start;
- {
- #ifndef BFD_ASSEMBLER
- #ifdef BFD_HEADERS
- struct bfd_internal_lineno *line_entry;
- #else
- LINENO *line_entry;
- #endif
- for (; line; line = line->next)
- {
- line_entry = &line->line;
-
- /* FIXME-SOMEDAY Resolving the sy_number of function linno's used to be
- done in write_object_file() but their symbols need a fileptr to the
- lnno, so I moved this resolution check here. xoxorich. */
-
- if (line_entry->l_lnno == 0)
- {
- /* There is a good chance that the symbol pointed to
- is not the one that will be emitted and that the
- sy_number is not accurate. */
- symbolS *symbolP;
-
- symbolP = (symbolS *) line_entry->l_addr.l_symndx;
-
- line_entry->l_addr.l_symndx = symbolP->sy_number;
- symbolP->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_fcn.x_lnnoptr = *where - file_start;
-
- } /* if this is a function linno */
- #ifdef BFD_HEADERS
- *where += bfd_coff_swap_lineno_out (stdoutput, line_entry, *where);
- #else
- /* No matter which member of the union we process, they are
- both long. */
- #ifdef CROSS_COMPILE
- md_number_to_chars (*where, line_entry->l_addr.l_paddr, sizeof (line_entry->l_addr.l_paddr));
- *where += sizeof (line_entry->l_addr.l_paddr);
-
- md_number_to_chars (*where, line_entry->l_lnno, sizeof (line_entry->l_lnno));
- *where += sizeof (line_entry->l_lnno);
-
- #ifdef TC_I960
- **where = '0';
- ++*where;
- **where = '0';
- ++*where;
- #endif /* TC_I960 */
-
- #else /* CROSS_COMPILE */
- append (where, (char *) line_entry, LINESZ);
- #endif /* CROSS_COMPILE */
- #endif /* BFD_HEADERS */
- } /* for each line number */
- #else /* BFD_ASSEMBLER */
- abort ();
- #endif /* BFD_ASSEMBLER */
- }
-
- void
- obj_symbol_new_hook (symbolP)
- symbolS *symbolP;
- {
- char underscore = 0; /* Symbol has leading _ */
-
- #ifdef BFD_ASSEMBLER
- {
- long sz = (OBJ_COFF_MAX_AUXENTRIES + 1) * sizeof (combined_entry_type);
- char *s = (char *) bfd_alloc_by_size_t (stdoutput, sz);
- memset (s, 0, sz);
- coffsymbol (symbolP->bsym)->native = (combined_entry_type *) s;
- }
- #else
- /* Effective symbol */
- /* Store the pointer in the offset. */
- S_SET_ZEROES (symbolP, 0L);
- /* Additional information */
- symbolP->sy_symbol.ost_flags = 0;
- /* Auxiliary entries */
- memset ((char *) &symbolP->sy_symbol.ost_auxent[0], '\0', AUXESZ);
- #endif
- S_SET_DATA_TYPE (symbolP, T_NULL);
- S_SET_STORAGE_CLASS (symbolP, 0);
- S_SET_NUMBER_AUXILIARY (symbolP, 0);
-
- #ifdef STRIP_UNDERSCORE
- /* Remove leading underscore at the beginning of the symbol.
- This is to be compatible with the standard librairies. */
- if (*S_GET_NAME (symbolP) == '_')
- {
- underscore = 1;
- S_SET_NAME (symbolP, S_GET_NAME (symbolP) + 1);
- }
- #endif /* STRIP_UNDERSCORE */
-
- if (S_IS_STRING (symbolP))
- SF_SET_STRING (symbolP);
- if (!underscore && S_IS_LOCAL (symbolP))
- SF_SET_LOCAL (symbolP);
- }
-
- /* stack stuff */
- stack *
- stack_init (chunk_size, element_size)
- unsigned long chunk_size;
- unsigned long element_size;
- {
- stack *st;
-
- st = (stack *) malloc (sizeof (stack));
- if (!st)
- return 0;
- st->data = malloc (chunk_size);
- if (!st->data)
- {
- free (st);
- return 0;
- }
- st->pointer = 0;
- st->size = chunk_size;
- st->chunk_size = chunk_size;
- st->element_size = element_size;
- return st;
- }
-
- void
- stack_delete (st)
- stack *st;
- {
- free (st->data);
- free (st);
- }
-
- char *
- stack_push (st, element)
- stack *st;
- char *element;
- {
- if (st->pointer + st->element_size >= st->size)
- {
- st->size += st->chunk_size;
- if ((st->data = xrealloc (st->data, st->size)) == (char *) 0)
- return (char *) 0;
- }
- memcpy (st->data + st->pointer, element, st->element_size);
- st->pointer += st->element_size;
- return st->data + st->pointer;
- } /* stack_push() */
-
- char *
- stack_pop (st)
- stack *st;
- {
- if ((st->pointer -= st->element_size) < 0)
- {
- st->pointer = 0;
- return (char *) 0;
- }
- return st->data + st->pointer;
- }
-
- char *
- stack_top (st)
- stack *st;
- {
- return st->data + st->pointer - st->element_size;
- }
-
-
- /*
- * Handle .ln directives.
- */
-
- #ifdef BFD_ASSEMBLER
- static symbolS *current_lineno_sym;
- static struct line_no *line_nos;
-
- static void
- add_lineno (frag, offset, num)
- fragS *frag;
- int offset;
- int num;
- {
- struct line_no *new_line = (struct line_no *) bfd_alloc_by_size_t (stdoutput,
- sizeof (struct line_no));
- if (!current_lineno_sym)
- {
- abort ();
- }
- new_line->next = line_nos;
- new_line->frag = frag;
- new_line->l.line_number = num;
- new_line->l.u.offset = offset;
- line_nos = new_line;
- }
-
- static void
- add_linesym (sym)
- symbolS *sym;
- {
- if (line_nos)
- {
- add_lineno (0, 0, 0);
- coffsymbol (current_lineno_sym->bsym)->lineno = (alent *) line_nos;
- line_nos = 0;
- }
- current_lineno_sym = sym;
- }
- #endif
-
- static void
- obj_coff_ln ()
- {
- int l;
- if (def_symbol_in_progress != NULL)
- {
- as_warn (".ln pseudo-op inside .def/.endef: ignored.");
- demand_empty_rest_of_line ();
- return;
- }
-
- l = get_absolute_expression ();
- #ifdef BFD_ASSEMBLER
- add_lineno (frag_now, frag_now_fix (), l);
- #else
- c_line_new (frag_now_fix (), l, frag_now);
- #endif
-
- #ifndef NO_LISTING
- {
- extern int listing;
-
- if (listing)
- {
- listing_source_line (l + line_base - 1);
- }
- }
- #endif
-
- demand_empty_rest_of_line ();
- } /* obj_coff_ln() */
-
- /*
- * def()
- *
- * Handle .def directives.
- *
- * One might ask : why can't we symbol_new if the symbol does not
- * already exist and fill it with debug information. Because of
- * the C_EFCN special symbol. It would clobber the value of the
- * function symbol before we have a chance to notice that it is
- * a C_EFCN. And a second reason is that the code is more clear this
- * way. (at least I think it is :-).
- *
- */
-
- #define SKIP_SEMI_COLON() while (*input_line_pointer++ != ';')
- #define SKIP_WHITESPACES() while (*input_line_pointer == ' ' || \
- *input_line_pointer == '\t') \
- input_line_pointer++;
-
- static void
- obj_coff_def (what)
- int what;
- {
- char name_end; /* Char after the end of name */
- char *symbol_name; /* Name of the debug symbol */
- char *symbol_name_copy; /* Temporary copy of the name */
- unsigned int symbol_name_length;
-
- if (def_symbol_in_progress != NULL)
- {
- as_warn (".def pseudo-op used inside of .def/.endef: ignored.");
- demand_empty_rest_of_line ();
- return;
- } /* if not inside .def/.endef */
-
- SKIP_WHITESPACES ();
-
- symbol_name = input_line_pointer;
- #ifdef STRIP_UNDERSCORE
- if (symbol_name[0] == '_' && symbol_name[1] != 0)
- symbol_name++;
- #endif /* STRIP_UNDERSCORE */
-
- name_end = get_symbol_end ();
- symbol_name_length = strlen (symbol_name);
- symbol_name_copy = xmalloc (symbol_name_length + 1);
- strcpy (symbol_name_copy, symbol_name);
-
- /* Initialize the new symbol */
- #ifdef BFD_ASSEMBLER
- def_symbol_in_progress = symbol_make (symbol_name_copy);
- #else
- def_symbol_in_progress = (symbolS *) obstack_alloc (¬es, sizeof (*def_symbol_in_progress));
- memset (def_symbol_in_progress, '\0', sizeof (*def_symbol_in_progress));
-
- S_SET_NAME (def_symbol_in_progress, symbol_name_copy);
- def_symbol_in_progress->sy_name_offset = ~0;
- def_symbol_in_progress->sy_number = ~0;
- #endif
-
- def_symbol_in_progress->sy_frag = &zero_address_frag;
-
- if (S_IS_STRING (def_symbol_in_progress))
- SF_SET_STRING (def_symbol_in_progress);
-
- *input_line_pointer = name_end;
-
- demand_empty_rest_of_line ();
- }
-
- unsigned int dim_index;
- static void
- obj_coff_endef ()
- {
- symbolS *symbolP;
- /* DIM BUG FIX sac@cygnus.com */
- dim_index = 0;
- if (def_symbol_in_progress == NULL)
- {
- as_warn (".endef pseudo-op used outside of .def/.endef: ignored.");
- demand_empty_rest_of_line ();
- return;
- } /* if not inside .def/.endef */
-
- /* Set the section number according to storage class. */
- switch (S_GET_STORAGE_CLASS (def_symbol_in_progress))
- {
- case C_STRTAG:
- case C_ENTAG:
- case C_UNTAG:
- SF_SET_TAG (def_symbol_in_progress);
- /* intentional fallthrough */
- case C_FILE:
- case C_TPDEF:
- SF_SET_DEBUG (def_symbol_in_progress);
- #ifdef BFD_ASSEMBLER
- S_SET_SEGMENT (def_symbol_in_progress, fetch_coff_debug_section ());
- #else
- S_SET_SEGMENT (def_symbol_in_progress, SEG_DEBUG);
- #endif
- break;
-
- case C_EFCN:
- SF_SET_LOCAL (def_symbol_in_progress); /* Do not emit this symbol. */
- /* intentional fallthrough */
- case C_BLOCK:
- SF_SET_PROCESS (def_symbol_in_progress); /* Will need processing before writing */
- /* intentional fallthrough */
- case C_FCN:
- {
- CONST char *name;
- S_SET_SEGMENT (def_symbol_in_progress, text_section);
-
- #ifdef BFD_ASSEMBLER
- name = bfd_asymbol_name (def_symbol_in_progress->bsym);
- #else
- name = def_symbol_in_progress->sy_symbol.ost_entry._n._n_nptr[1];
- #endif
- if (name[1] == 'b' && name[2] == 'f')
- {
- if (function_lineoff < 0)
- as_warn ("`%s' symbol without preceding function", name);
- #ifdef BFD_ASSEMBLER
- abort ();
- #else
- SA_GET_SYM_LNNOPTR (def_symbol_in_progress) = function_lineoff;
- #endif
- /* Will need relocating */
- SF_SET_PROCESS (def_symbol_in_progress);
- #ifdef BFD_ASSEMBLER
- function_lineoff = 0;
- #else
- function_lineoff = -1;
- #endif
- }
- }
- break;
-
- #ifdef C_AUTOARG
- case C_AUTOARG:
- #endif /* C_AUTOARG */
- case C_AUTO:
- case C_REG:
- case C_MOS:
- case C_MOE:
- case C_MOU:
- case C_ARG:
- case C_REGPARM:
- case C_FIELD:
- case C_EOS:
- SF_SET_DEBUG (def_symbol_in_progress);
- S_SET_SEGMENT (def_symbol_in_progress, absolute_section);
- break;
-
- case C_EXT:
- case C_STAT:
- case C_LABEL:
- /* Valid but set somewhere else (s_comm, s_lcomm, colon) */
- break;
-
- case C_USTATIC:
- case C_EXTDEF:
- case C_ULABEL:
- as_warn ("unexpected storage class %d",
- S_GET_STORAGE_CLASS (def_symbol_in_progress));
- break;
- } /* switch on storage class */
-
- /* Now that we have built a debug symbol, try to find if we should
- merge with an existing symbol or not. If a symbol is C_EFCN or
- SEG_ABSOLUTE or untagged SEG_DEBUG it never merges. */
-
- /* Two cases for functions. Either debug followed by definition or
- definition followed by debug. For definition first, we will
- merge the debug symbol into the definition. For debug first, the
- lineno entry MUST point to the definition function or else it
- will point off into space when obj_crawl_symbol_chain() merges
- the debug symbol into the real symbol. Therefor, let's presume
- the debug symbol is a real function reference. */
-
- /* FIXME-SOON If for some reason the definition label/symbol is
- never seen, this will probably leave an undefined symbol at link
- time. */
-
- if (S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_EFCN
- #ifdef BFD_ASSEMBLER
- || (!strcmp (bfd_get_section_name (stdoutput,
- S_GET_SEGMENT (def_symbol_in_progress)),
- "*DEBUG*")
- && !SF_GET_TAG (def_symbol_in_progress))
- #else
- || (S_GET_SEGMENT (def_symbol_in_progress) == SEG_DEBUG
- && !SF_GET_TAG (def_symbol_in_progress))
- #endif
- || S_GET_SEGMENT (def_symbol_in_progress) == absolute_section
- || (symbolP = symbol_find_base (S_GET_NAME (def_symbol_in_progress), DO_NOT_STRIP)) == NULL)
- {
- #ifdef BFD_ASSEMBLER
- if (def_symbol_in_progress != symbol_lastP)
- symbol_append (def_symbol_in_progress, symbol_lastP, &symbol_rootP,
- &symbol_lastP);
- #else
- symbol_append (def_symbol_in_progress, symbol_lastP, &symbol_rootP,
- &symbol_lastP);
- #endif
- }
- else
- {
- /* This symbol already exists, merge the newly created symbol
- into the old one. This is not mandatory. The linker can
- handle duplicate symbols correctly. But I guess that it save
- a *lot* of space if the assembly file defines a lot of
- symbols. [loic] */
-
- /* The debug entry (def_symbol_in_progress) is merged into the
- previous definition. */
-
- c_symbol_merge (def_symbol_in_progress, symbolP);
- /* FIXME-SOON Should *def_symbol_in_progress be free'd? xoxorich. */
- def_symbol_in_progress = symbolP;
-
- if (SF_GET_FUNCTION (def_symbol_in_progress)
- || SF_GET_TAG (def_symbol_in_progress))
- {
- /* For functions, and tags, the symbol *must* be where the
- debug symbol appears. Move the existing symbol to the
- current place. */
- /* If it already is at the end of the symbol list, do nothing */
- if (def_symbol_in_progress != symbol_lastP)
- {
- symbol_remove (def_symbol_in_progress, &symbol_rootP, &symbol_lastP);
- symbol_append (def_symbol_in_progress, symbol_lastP, &symbol_rootP, &symbol_lastP);
- }
- }
- }
-
- if (SF_GET_TAG (def_symbol_in_progress)
- && symbol_find_base (S_GET_NAME (def_symbol_in_progress), DO_NOT_STRIP) == NULL)
- {
- tag_insert (S_GET_NAME (def_symbol_in_progress), def_symbol_in_progress);
- }
-
- if (SF_GET_FUNCTION (def_symbol_in_progress))
- {
- know (sizeof (def_symbol_in_progress) <= sizeof (long));
- #ifdef BFD_ASSEMBLER
- function_lineoff = def_symbol_in_progress;
- add_linesym (def_symbol_in_progress);
- #else
- function_lineoff = c_line_new ((long) def_symbol_in_progress, 0,
- &zero_address_frag);
- #endif
- SF_SET_PROCESS (def_symbol_in_progress);
-
- if (symbolP == NULL)
- {
- /* That is, if this is the first time we've seen the
- function... */
- symbol_table_insert (def_symbol_in_progress);
- } /* definition follows debug */
- } /* Create the line number entry pointing to the function being defined */
-
- def_symbol_in_progress = NULL;
- demand_empty_rest_of_line ();
- return;
- }
-
- static void
- obj_coff_dim ()
- {
- register int dim_index;
-
- if (def_symbol_in_progress == NULL)
- {
- as_warn (".dim pseudo-op used outside of .def/.endef: ignored.");
- demand_empty_rest_of_line ();
- return;
- } /* if not inside .def/.endef */
-
- S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
-
- for (dim_index = 0; dim_index < DIMNUM; dim_index++)
- {
- SKIP_WHITESPACES ();
- SA_SET_SYM_DIMEN (def_symbol_in_progress, dim_index, get_absolute_expression ());
-
- switch (*input_line_pointer)
- {
-
- case ',':
- input_line_pointer++;
- break;
-
- default:
- as_warn ("badly formed .dim directive ignored");
- /* intentional fallthrough */
- case '\n':
- case ';':
- dim_index = DIMNUM;
- break;
- } /* switch on following character */
- } /* for each dimension */
-
- demand_empty_rest_of_line ();
- return;
- } /* obj_coff_dim() */
-
- static void
- obj_coff_line ()
- {
- int this_base;
-
- if (def_symbol_in_progress == NULL)
- {
- obj_coff_ln ();
- return;
- } /* if it looks like a stabs style line */
-
- this_base = get_absolute_expression ();
- if (this_base > line_base)
- {
- line_base = this_base;
- }
-
-
- S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
- SA_SET_SYM_LNNO (def_symbol_in_progress, line_base);
-
- demand_empty_rest_of_line ();
- return;
- } /* obj_coff_line() */
-
- static void
- obj_coff_size ()
- {
- if (def_symbol_in_progress == NULL)
- {
- as_warn (".size pseudo-op used outside of .def/.endef ignored.");
- demand_empty_rest_of_line ();
- return;
- } /* if not inside .def/.endef */
-
- S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
- SA_SET_SYM_SIZE (def_symbol_in_progress, get_absolute_expression ());
- demand_empty_rest_of_line ();
- return;
- } /* obj_coff_size() */
-
- static void
- obj_coff_scl ()
- {
- if (def_symbol_in_progress == NULL)
- {
- as_warn (".scl pseudo-op used outside of .def/.endef ignored.");
- demand_empty_rest_of_line ();
- return;
- } /* if not inside .def/.endef */
-
- S_SET_STORAGE_CLASS (def_symbol_in_progress, get_absolute_expression ());
- demand_empty_rest_of_line ();
- return;
- } /* obj_coff_scl() */
-
- static void
- obj_coff_tag ()
- {
- char *symbol_name;
- char name_end;
-
- if (def_symbol_in_progress == NULL)
- {
- as_warn (".tag pseudo-op used outside of .def/.endef ignored.");
- demand_empty_rest_of_line ();
- return;
- } /* if not inside .def/.endef */
-
- S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1);
- symbol_name = input_line_pointer;
- name_end = get_symbol_end ();
-
- /* Assume that the symbol referred to by .tag is always defined. */
- /* This was a bad assumption. I've added find_or_make. xoxorich. */
- SA_SET_SYM_TAGNDX (def_symbol_in_progress,
- (long) tag_find_or_make (symbol_name));
- if (SA_GET_SYM_TAGNDX (def_symbol_in_progress) == 0L)
- {
- as_warn ("tag not found for .tag %s", symbol_name);
- } /* not defined */
-
- SF_SET_TAGGED (def_symbol_in_progress);
- *input_line_pointer = name_end;
-
- demand_empty_rest_of_line ();
- } /* obj_coff_tag() */
-
- static void
- obj_coff_type ()
- {
- if (def_symbol_in_progress == NULL)
- {
- as_warn (".type pseudo-op used outside of .def/.endef ignored.");
- demand_empty_rest_of_line ();
- return;
- } /* if not inside .def/.endef */
-
- S_SET_DATA_TYPE (def_symbol_in_progress, get_absolute_expression ());
-
- if (ISFCN (S_GET_DATA_TYPE (def_symbol_in_progress)) &&
- S_GET_STORAGE_CLASS (def_symbol_in_progress) != C_TPDEF)
- {
- SF_SET_FUNCTION (def_symbol_in_progress);
- } /* is a function */
-
- demand_empty_rest_of_line ();
- return;
- } /* obj_coff_type() */
-
- static void
- obj_coff_val ()
- {
- if (def_symbol_in_progress == NULL)
- {
- as_warn (".val pseudo-op used outside of .def/.endef ignored.");
- demand_empty_rest_of_line ();
- return;
- } /* if not inside .def/.endef */
-
- if (is_name_beginner (*input_line_pointer))
- {
- char *symbol_name = input_line_pointer;
- char name_end = get_symbol_end ();
-
- if (!strcmp (symbol_name, "."))
- {
- def_symbol_in_progress->sy_frag = frag_now;
- S_SET_VALUE (def_symbol_in_progress, obstack_next_free (&frags) - frag_now->fr_literal);
- /* If the .val is != from the .def (e.g. statics) */
- }
- else if (strcmp (S_GET_NAME (def_symbol_in_progress), symbol_name))
- {
- def_symbol_in_progress->sy_forward = symbol_find_or_make (symbol_name);
-
- /* If the segment is undefined when the forward
- reference is solved, then copy the segment id
- from the forward symbol. */
- SF_SET_GET_SEGMENT (def_symbol_in_progress);
- }
- /* Otherwise, it is the name of a non debug symbol and its value will be calculated later. */
- *input_line_pointer = name_end;
- }
- else
- {
- S_SET_VALUE (def_symbol_in_progress, get_absolute_expression ());
- } /* if symbol based */
-
- demand_empty_rest_of_line ();
- return;
- } /* obj_coff_val() */
-
- /*
- * Maintain a list of the tagnames of the structres.
- */
-
- static void
- tag_init ()
- {
- tag_hash = hash_new ();
- return;
- } /* tag_init() */
-
- static void
- tag_insert (name, symbolP)
- CONST char *name;
- symbolS *symbolP;
- {
- register char *error_string;
-
- if (*(error_string = hash_jam (tag_hash, name, (char *) symbolP)))
- {
- as_fatal ("Inserting \"%s\" into structure table failed: %s",
- name, error_string);
- }
- return;
- } /* tag_insert() */
-
- static symbolS *
- tag_find_or_make (name)
- char *name;
- {
- symbolS *symbolP;
-
- if ((symbolP = tag_find (name)) == NULL)
- {
- symbolP = symbol_new (name, undefined_section,
- 0, &zero_address_frag);
-
- tag_insert (S_GET_NAME (symbolP), symbolP);
- symbol_table_insert (symbolP);
- } /* not found */
-
- return (symbolP);
- } /* tag_find_or_make() */
-
- static symbolS *
- tag_find (name)
- char *name;
- {
- #ifdef STRIP_UNDERSCORE
- if (*name == '_')
- name++;
- #endif /* STRIP_UNDERSCORE */
- return ((symbolS *) hash_find (tag_hash, name));
- } /* tag_find() */
-
- void
- obj_read_begin_hook ()
- {
- /* These had better be the same. Usually 18 bytes. */
- #ifndef BFD_HEADERS
- know (sizeof (SYMENT) == sizeof (AUXENT));
- know (SYMESZ == AUXESZ);
- #endif
- tag_init ();
- }
-
- void
- obj_crawl_symbol_chain (headers)
- object_headers *headers;
- {
- int symbol_number = 0;
- lineno *lineP;
- symbolS *last_functionP = NULL;
- symbolS *last_tagP;
- symbolS *symbolP;
- symbolS *symbol_externP = NULL;
- symbolS *symbol_extern_lastP = NULL;
-
- /* Initialize the stack used to keep track of the matching .bb .be */
- stack *block_stack = stack_init (512, sizeof (symbolS *));
-
- /* JF deal with forward references first... */
- for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP))
- {
-
- if (symbolP->sy_forward)
- {
- S_SET_VALUE (symbolP, (S_GET_VALUE (symbolP)
- + S_GET_VALUE (symbolP->sy_forward)
- + symbolP->sy_forward->sy_frag->fr_address));
-
- if (
- #ifndef TE_I386AIX
- SF_GET_GET_SEGMENT (symbolP)
- #else
- SF_GET_GET_SEGMENT (symbolP)
- && S_GET_SEGMENT (symbolP) == SEG_UNKNOWN
- #endif /* TE_I386AIX */
- )
- {
- S_SET_SEGMENT (symbolP, S_GET_SEGMENT (symbolP->sy_forward));
- } /* forward segment also */
-
- symbolP->sy_forward = 0;
- } /* if it has a forward reference */
- } /* walk the symbol chain */
-
- tc_crawl_symbol_chain (headers);
-
- /* The symbol list should be ordered according to the following sequence
- * order :
- * . .file symbol
- * . debug entries for functions
- * . fake symbols for .text .data and .bss
- * . defined symbols
- * . undefined symbols
- * But this is not mandatory. The only important point is to put the
- * undefined symbols at the end of the list.
- */
-
- if (symbol_rootP == NULL
- || S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE)
- {
- know (!previous_file_symbol);
- c_dot_file_symbol ("fake");
- } /* Is there a .file symbol ? If not insert one at the beginning. */
-
- /*
- * Build up static symbols for .text, .data and .bss
- */
- dot_text_symbol = (symbolS *)
- c_section_symbol (".text",
- 0,
- H_GET_TEXT_SIZE (headers),
- 0 /*text_relocation_number */ ,
- 0 /*text_lineno_number */ );
- #ifdef TE_I386AIX
- symbol_remove (dot_text_symbol, &symbol_rootP, &symbol_lastP);
- symbol_append (dot_text_symbol, previous_file_symbol,
- &symbol_rootP, &symbol_lastP);
- #endif /* TE_I386AIX */
-
- dot_data_symbol = (symbolS *)
- c_section_symbol (".data",
- H_GET_TEXT_SIZE (headers),
- H_GET_DATA_SIZE (headers),
- 0 /*data_relocation_number */ ,
- 0); /* There are no data lineno entries */
- #ifdef TE_I386AIX
- symbol_remove (dot_data_symbol, &symbol_rootP, &symbol_lastP);
- symbol_append (dot_data_symbol, dot_text_symbol,
- &symbol_rootP, &symbol_lastP);
- #endif /* TE_I386AIX */
-
- dot_bss_symbol = (symbolS *)
- c_section_symbol (".bss",
- H_GET_TEXT_SIZE (headers) + H_GET_DATA_SIZE (headers),
- H_GET_BSS_SIZE (headers),
- 0, /* No relocation for a bss section. */
- 0); /* There are no bss lineno entries */
- #ifdef TE_I386AIX
- symbol_remove (dot_bss_symbol, &symbol_rootP, &symbol_lastP);
- symbol_append (dot_bss_symbol, dot_data_symbol,
- &symbol_rootP, &symbol_lastP);
- #endif /* TE_I386AIX */
-
- #if defined(DEBUG)
- verify_symbol_chain (symbol_rootP, symbol_lastP);
- #endif /* DEBUG */
-
- /* Three traversals of symbol chains here. The
- first traversal yanks externals into a temporary
- chain, removing the externals from the global
- chain, numbers symbols, and does some other guck.
- The second traversal is on the temporary chain of
- externals and just appends them to the global
- chain again, numbering them as we go. The third
- traversal patches pointers to symbols (using sym
- indexes). The last traversal was once done as
- part of the first pass, but that fails when a
- reference preceeds a definition as the definition
- has no number at the time we process the
- reference. */
-
- /* Note that symbolP will be NULL at the end of a loop
- if an external was at the beginning of the list (it
- gets moved off the list). Hence the weird check in
- the loop control.
- */
- for (symbolP = symbol_rootP;
- symbolP;
- symbolP = symbolP ? symbol_next (symbolP) : symbol_rootP)
- {
- if (!SF_GET_DEBUG (symbolP))
- {
- /* Debug symbols do not need all this rubbish */
- symbolS *real_symbolP;
-
- /* L* and C_EFCN symbols never merge. */
- if (!SF_GET_LOCAL (symbolP)
- && (real_symbolP = symbol_find_base (S_GET_NAME (symbolP), DO_NOT_STRIP))
- && real_symbolP != symbolP)
- {
- /* FIXME-SOON: where do dups come from? Maybe tag references before definitions? xoxorich. */
- /* Move the debug data from the debug symbol to the
- real symbol. Do NOT do the oposite (i.e. move from
- real symbol to debug symbol and remove real symbol from the
- list.) Because some pointers refer to the real symbol
- whereas no pointers refer to the debug symbol. */
- c_symbol_merge (symbolP, real_symbolP);
- /* Replace the current symbol by the real one */
- /* The symbols will never be the last or the first
- because : 1st symbol is .file and 3 last symbols are
- .text, .data, .bss */
- symbol_remove (real_symbolP, &symbol_rootP, &symbol_lastP);
- symbol_insert (real_symbolP, symbolP, &symbol_rootP, &symbol_lastP);
- symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
- symbolP = real_symbolP;
- } /* if not local but dup'd */
-
- if (flagseen['R'] && (S_GET_SEGMENT (symbolP) == SEG_DATA))
- {
- S_SET_SEGMENT (symbolP, SEG_TEXT);
- } /* push data into text */
-
- S_SET_VALUE (symbolP, S_GET_VALUE (symbolP) + symbolP->sy_frag->fr_address);
-
- if (!S_IS_DEFINED (symbolP) && !SF_GET_LOCAL (symbolP))
- {
- S_SET_EXTERNAL (symbolP);
- }
- else if (S_GET_STORAGE_CLASS (symbolP) == C_NULL)
- {
- if (S_GET_SEGMENT (symbolP) == SEG_TEXT)
- {
- S_SET_STORAGE_CLASS (symbolP, C_LABEL);
- }
- else
- {
- S_SET_STORAGE_CLASS (symbolP, C_STAT);
- }
- } /* no storage class yet */
-
- /* Mainly to speed up if not -g */
- if (SF_GET_PROCESS (symbolP))
- {
- /* Handle the nested blocks auxiliary info. */
- if (S_GET_STORAGE_CLASS (symbolP) == C_BLOCK)
- {
- if (!strcmp (S_GET_NAME (symbolP), ".bb"))
- stack_push (block_stack, (char *) &symbolP);
- else
- { /* .eb */
- register symbolS *begin_symbolP;
- begin_symbolP = *(symbolS **) stack_pop (block_stack);
- if (begin_symbolP == (symbolS *) 0)
- as_warn ("mismatched .eb");
- else
- SA_SET_SYM_ENDNDX (begin_symbolP, symbol_number + 2);
- }
- }
- /* If we are able to identify the type of a function, and we
- are out of a function (last_functionP == 0) then, the
- function symbol will be associated with an auxiliary
- entry. */
- if (last_functionP == (symbolS *) 0 &&
- SF_GET_FUNCTION (symbolP))
- {
- last_functionP = symbolP;
-
- if (S_GET_NUMBER_AUXILIARY (symbolP) < 1)
- {
- S_SET_NUMBER_AUXILIARY (symbolP, 1);
- } /* make it at least 1 */
-
- /* Clobber possible stale .dim information. */
- memset (symbolP->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_ary.x_dimen,
- '\0', sizeof (symbolP->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_ary.x_dimen));
- }
- /* The C_FCN doesn't need any additional information.
- I don't even know if this is needed for sdb. But the
- standard assembler generates it, so...
- */
- if (S_GET_STORAGE_CLASS (symbolP) == C_EFCN)
- {
- if (last_functionP == (symbolS *) 0)
- as_fatal ("C_EFCN symbol out of scope");
- SA_SET_SYM_FSIZE (last_functionP,
- (long) (S_GET_VALUE (symbolP) -
- S_GET_VALUE (last_functionP)));
- SA_SET_SYM_ENDNDX (last_functionP, symbol_number);
- last_functionP = (symbolS *) 0;
- }
- }
- }
- else if (SF_GET_TAG (symbolP))
- {
- /* First descriptor of a structure must point to
- the first slot after the structure description. */
- last_tagP = symbolP;
-
- }
- else if (S_GET_STORAGE_CLASS (symbolP) == C_EOS)
- {
- /* +2 take in account the current symbol */
- SA_SET_SYM_ENDNDX (last_tagP, symbol_number + 2);
- }
- else if (S_GET_STORAGE_CLASS (symbolP) == C_FILE)
- {
- if (symbolP->sy_symbol.ost_auxent->x_file.x_n.x_zeroes == 0)
- {
- symbolP->sy_symbol.ost_auxent->x_file.x_n.x_offset = string_byte_count;
- string_byte_count +=
- strlen(GET_FILENAME_STRING(symbolP)) + 1;
-
-
- }
-
- if (S_GET_VALUE (symbolP))
- {
- S_SET_VALUE ((symbolS *) S_GET_VALUE (symbolP), symbol_number);
- S_SET_VALUE (symbolP, 0);
- } /* no one points at the first .file symbol */
- } /* if debug or tag or eos or file */
-
- /* We must put the external symbols apart. The loader
- does not bomb if we do not. But the references in
- the endndx field for a .bb symbol are not corrected
- if an external symbol is removed between .bb and .be.
- I.e in the following case :
- [20] .bb endndx = 22
- [21] foo external
- [22] .be
- ld will move the symbol 21 to the end of the list but
- endndx will still be 22 instead of 21. */
-
- if (SF_GET_LOCAL (symbolP))
- {
- /* remove C_EFCN and LOCAL (L...) symbols */
- /* next pointer remains valid */
- symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
-
- }
- else if (
- #ifdef TE_I386AIX
- S_GET_STORAGE_CLASS (symbolP) == C_EXT
- && !SF_GET_FUNCTION (symbolP)
- #else /* not TE_I386AIX */
- !S_IS_DEFINED (symbolP)
- && !S_IS_DEBUG (symbolP)
- && !SF_GET_STATICS (symbolP)
- #endif /* not TE_I386AIX */
- )
- {
- /* if external, Remove from the list */
- symbolS *hold = symbol_previous (symbolP);
-
- symbol_remove (symbolP, &symbol_rootP, &symbol_lastP);
- symbol_clear_list_pointers (symbolP);
- symbol_append (symbolP, symbol_extern_lastP, &symbol_externP, &symbol_extern_lastP);
- symbolP = hold;
- }
- else
- {
- if (SF_GET_STRING (symbolP))
- {
- symbolP->sy_name_offset = string_byte_count;
- string_byte_count += strlen (S_GET_NAME (symbolP)) + 1;
- }
- else
- {
- symbolP->sy_name_offset = 0;
- } /* fix "long" names */
-
- symbolP->sy_number = symbol_number;
- symbol_number += 1 + S_GET_NUMBER_AUXILIARY (symbolP);
- } /* if local symbol */
- } /* traverse the symbol list */
-
- for (symbolP = symbol_externP; symbol_externP;)
- {
- symbolS *tmp = symbol_externP;
-
- /* append */
- symbol_remove (tmp, &symbol_externP, &symbol_extern_lastP);
- symbol_append (tmp, symbol_lastP, &symbol_rootP, &symbol_lastP);
-
- /* and process */
- if (SF_GET_STRING (tmp))
- {
- tmp->sy_name_offset = string_byte_count;
- string_byte_count += strlen (S_GET_NAME (tmp)) + 1;
- }
- else
- {
- tmp->sy_name_offset = 0;
- } /* fix "long" names */
-
- tmp->sy_number = symbol_number;
- symbol_number += 1 + S_GET_NUMBER_AUXILIARY (tmp);
- } /* append the entire extern chain */
-
- /* When a tag reference preceeds the tag definition, the definition
- will not have a number at the time we process the reference
- during the first traversal. Thus, a second traversal. */
-
- for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP))
- {
- if (SF_GET_TAGGED (symbolP))
- {
- SA_SET_SYM_TAGNDX (symbolP, ((symbolS *) SA_GET_SYM_TAGNDX (symbolP))->sy_number);
- }
- }
-
- know (symbol_externP == NULL);
- know (symbol_extern_lastP == NULL);
-
- /* FIXME-SOMEDAY I'm counting line no's here so we know what to put
- in the section headers, and I'm resolving the addresses since I'm
- not sure how to do it later. I am NOT resolving the linno's
- representing functions. Their symbols need a fileptr pointing to
- this linno when emitted. Thus, I resolve them on emit.
- xoxorich. */
-
- for (lineP = lineno_rootP; lineP; lineP = lineP->next)
- {
- if (lineP->line.l_lnno > 0)
- {
- lineP->line.l_addr.l_paddr += ((fragS *) lineP->frag)->fr_address;
- }
- else
- {
- ;
- }
- text_lineno_number++;
- } /* for each line number */
-
- H_SET_SYMBOL_TABLE_SIZE (headers, symbol_number);
-
- return;
- }
-
- /*
- * Find strings by crawling along symbol table chain.
- */
-
- void
- obj_emit_strings (where)
- char **where;
- {
- symbolS *symbolP;
-
- #ifdef CROSS_COMPILE
- /* Gotta do md_ byte-ordering stuff for string_byte_count first - KWK */
- md_number_to_chars (*where, string_byte_count, sizeof (string_byte_count));
- *where += sizeof (string_byte_count);
- #else /* CROSS_COMPILE */
- append (where, (char *) &string_byte_count, (unsigned long) sizeof (string_byte_count));
- #endif /* CROSS_COMPILE */
-
- for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP))
- {
- if (S_GET_STORAGE_CLASS(symbolP) == C_FILE)
- {
- /* May need special treatment for this auxent */
- if (symbolP->sy_symbol.ost_auxent->x_file.x_n.x_zeroes == 0)
- {
- char *p = GET_FILENAME_STRING(symbolP);
- append
- (where,p, strlen(p)+1);
- }
- }
- if (SF_GET_STRING (symbolP))
- {
- append (where, S_GET_NAME (symbolP),
- (unsigned long) (strlen (S_GET_NAME (symbolP)) + 1));
- } /* if it has a string */
- } /* walk the symbol chain */
- }
-
- void
- obj_pre_write_hook (headers)
- object_headers *headers;
- {
- register int text_relocation_number = 0;
- register int data_relocation_number = 0;
- register fixS *fixP;
-
- /* FIXME-SOMEDAY this should be done at fixup_segment time but I'm
- going to wait until I do multiple segments. xoxorich. */
- /* Count the number of relocation entries for text and data */
- for (fixP = text_fix_root; fixP; fixP = fixP->fx_next)
- {
- if (fixP->fx_addsy)
- {
- ++text_relocation_number;
- #ifdef TC_I960
- /* two relocs per callj under coff. */
- if (fixP->fx_callj)
- {
- ++text_relocation_number;
- } /* if callj and not already fixed. */
- #endif /* TC_I960 */
- #ifdef TC_A29K
- /* Count 2 for a constH */
- if (fixP->fx_r_type == RELOC_CONSTH)
- {
- ++text_relocation_number;
- }
- #endif
-
- } /* if not yet fixed */
- } /* for each fix */
-
- SA_SET_SCN_NRELOC (dot_text_symbol, text_relocation_number);
- /* Assign the number of line number entries for the text section */
- SA_SET_SCN_NLINNO (dot_text_symbol, text_lineno_number);
- /* Assign the size of the section */
- SA_SET_SCN_SCNLEN (dot_text_symbol, H_GET_TEXT_SIZE (headers));
-
- for (fixP = data_fix_root; fixP; fixP = fixP->fx_next)
- {
- if (fixP->fx_addsy)
- {
- ++data_relocation_number;
- } /* if still relocatable */
- #ifdef TC_A29K
- /* Count 2 for a constH */
- if (fixP->fx_r_type == RELOC_CONSTH)
- {
- ++data_relocation_number;
- }
- #endif
-
- } /* for each fix */
-
-
- SA_SET_SCN_NRELOC (dot_data_symbol, data_relocation_number);
- /* Assign the size of the section */
- SA_SET_SCN_SCNLEN (dot_data_symbol, H_GET_DATA_SIZE (headers));
-
- /* Assign the size of the section */
- SA_SET_SCN_SCNLEN (dot_bss_symbol, H_GET_BSS_SIZE (headers));
-
- /* pre write hook can add relocs (for 960 and 29k coff) so */
- headers->relocation_size = text_relocation_number * RELSZ +
- data_relocation_number * RELSZ;
-
-
-
- /* Fill in extra coff fields */
-
- /* Initialize general line number information. */
- H_SET_LINENO_SIZE (headers, text_lineno_number * LINESZ);
-
- /* filehdr */
- H_SET_FILE_MAGIC_NUMBER (headers, FILE_HEADER_MAGIC);
- H_SET_NUMBER_OF_SECTIONS (headers, 3); /* text+data+bss */
- #ifndef OBJ_COFF_OMIT_TIMESTAMP
- H_SET_TIME_STAMP (headers, (long) time ((long *) 0));
- #else /* OBJ_COFF_OMIT_TIMESTAMP */
- H_SET_TIME_STAMP (headers, 0);
- #endif /* OBJ_COFF_OMIT_TIMESTAMP */
- H_SET_SYMBOL_TABLE_POINTER (headers, H_GET_SYMBOL_TABLE_FILE_OFFSET (headers));
- #if 0
- printf ("FILHSZ %x\n", FILHSZ);
- printf ("OBJ_COFF_AOUTHDRSZ %x\n", OBJ_COFF_AOUTHDRSZ);
- printf ("section headers %x\n", H_GET_NUMBER_OF_SECTIONS (headers) * SCNHSZ);
- printf ("get text size %x\n", H_GET_TEXT_SIZE (headers));
- printf ("get data size %x\n", H_GET_DATA_SIZE (headers));
- printf ("get relocation size %x\n", H_GET_RELOCATION_SIZE (headers));
- printf ("get lineno size %x\n", H_GET_LINENO_SIZE (headers));
- #endif
- /* symbol table size allready set */
- H_SET_SIZEOF_OPTIONAL_HEADER (headers, OBJ_COFF_AOUTHDRSZ);
-
- /* do not added the F_RELFLG for the standard COFF.
- * The AIX linker complain on file with relocation info striped flag.
- */
- #ifdef KEEP_RELOC_INFO
- H_SET_FLAGS (headers, (text_lineno_number == 0 ? F_LNNO : 0)
- | BYTE_ORDERING);
- #else
- H_SET_FLAGS (headers, (text_lineno_number == 0 ? F_LNNO : 0)
- | ((text_relocation_number + data_relocation_number) ? 0 : F_RELFLG)
- | BYTE_ORDERING);
- #endif
- /* aouthdr */
- /* magic number allready set */
- H_SET_VERSION_STAMP (headers, 0);
- /* Text, data, bss size; entry point; text_start and data_start are already set */
-
- /* Build section headers */
-
- c_section_header (&text_section_header,
- ".text",
- 0,
- H_GET_TEXT_SIZE (headers),
- H_GET_TEXT_FILE_OFFSET (headers),
- (SA_GET_SCN_NRELOC (dot_text_symbol)
- ? H_GET_RELOCATION_FILE_OFFSET (headers)
- : 0),
- (text_lineno_number
- ? H_GET_LINENO_FILE_OFFSET (headers)
- : 0),
- SA_GET_SCN_NRELOC (dot_text_symbol),
- text_lineno_number,
- section_alignment[(int) SEG_TEXT]);
-
- c_section_header (&data_section_header,
- ".data",
- H_GET_TEXT_SIZE (headers),
- H_GET_DATA_SIZE (headers),
- (H_GET_DATA_SIZE (headers)
- ? H_GET_DATA_FILE_OFFSET (headers)
- : 0),
- (SA_GET_SCN_NRELOC (dot_data_symbol)
- ? (H_GET_RELOCATION_FILE_OFFSET (headers)
- + text_section_header.s_nreloc * RELSZ)
- : 0),
- 0, /* No line number information */
- SA_GET_SCN_NRELOC (dot_data_symbol),
- 0, /* No line number information */
- section_alignment[(int) SEG_DATA]);
-
- c_section_header (&bss_section_header,
- ".bss",
- H_GET_TEXT_SIZE (headers) + H_GET_DATA_SIZE (headers),
- H_GET_BSS_SIZE (headers),
- 0, /* No file offset */
- 0, /* No relocation information */
- 0, /* No line number information */
- 0, /* No relocation information */
- 0, /* No line number information */
- section_alignment[(int) SEG_BSS]);
- }
-
- /* This is a copy from aout. All I do is neglect to actually build the symbol. */
-
- static void
- obj_coff_stab (what)
- int what;
- {
- char *string;
- expressionS e;
- int goof = 0; /* TRUE if we have aborted. */
- int length;
- int saved_type = 0;
- long longint;
- symbolS *symbolP = 0;
-
- if (what == 's')
- {
- string = demand_copy_C_string (&length);
- SKIP_WHITESPACE ();
-
- if (*input_line_pointer == ',')
- {
- input_line_pointer++;
- }
- else
- {
- as_bad ("I need a comma after symbol's name");
- goof = 1;
- } /* better be a comma */
- } /* skip the string */
-
- /*
- * Input_line_pointer->after ','. String->symbol name.
- */
- if (!goof)
- {
- if (get_absolute_expression_and_terminator (&longint) != ',')
- {
- as_bad ("I want a comma after the n_type expression");
- goof = 1;
- input_line_pointer--; /* Backup over a non-',' char. */
- } /* on error */
- } /* no error */
-
- if (!goof)
- {
- if (get_absolute_expression_and_terminator (&longint) != ',')
- {
- as_bad ("I want a comma after the n_other expression");
- goof = 1;
- input_line_pointer--; /* Backup over a non-',' char. */
- } /* on error */
- } /* no error */
-
- if (!goof)
- {
- get_absolute_expression ();
-
- if (what == 's' || what == 'n')
- {
- if (*input_line_pointer != ',')
- {
- as_bad ("I want a comma after the n_desc expression");
- goof = 1;
- }
- else
- {
- input_line_pointer++;
- } /* on goof */
- } /* not stabd */
- } /* no error */
-
- expression (&e);
-
- if (goof)
- {
- ignore_rest_of_line ();
- }
- else
- {
- demand_empty_rest_of_line ();
- } /* on error */
- } /* obj_coff_stab() */
-
- #ifdef BFD_ASSEMBLER
- static
- unsigned long
- align (val, exp)
- {
- int n = (1 << exp) - 1;
- printf ("align (%x, %x)\n", val, exp);
- val = (val + n) & ~n;
- return val;
- }
-
- void
- coff_check_file_symbols (symp, punt)
- symbolS *symp;
- int *punt;
- {
- static symbolS *last_functionP, *last_tagP;
- static stack *block_stack;
-
- if (!block_stack)
- block_stack = stack_init (512, sizeof (symbolS*));
-
- #if 1
- if (!S_IS_DEFINED (symp) && S_GET_STORAGE_CLASS (symp) != C_STAT)
- S_SET_STORAGE_CLASS (symp, C_EXT);
- #endif
-
- if (!SF_GET_DEBUG (symp))
- {
- symbolS *real;
- if (!SF_GET_LOCAL (symp)
- && (real = symbol_find_base (S_GET_NAME (symp), DO_NOT_STRIP))
- && real != symp)
- {
- c_symbol_merge (symp, real);
- *punt = 1;
- }
- if (!S_IS_DEFINED (symp) && !SF_GET_LOCAL (symp))
- {
- assert (S_GET_VALUE (symp) == 0);
- S_SET_EXTERNAL (symp);
- }
- else if (S_GET_STORAGE_CLASS (symp) == C_NULL)
- {
- if (S_GET_SEGMENT (symp) == text_section)
- S_SET_STORAGE_CLASS (symp, C_LABEL);
- else
- S_SET_STORAGE_CLASS (symp, C_STAT);
- }
- if (SF_GET_PROCESS (symp))
- {
- if (S_GET_STORAGE_CLASS (symp) == C_BLOCK)
- {
- if (!strcmp (S_GET_NAME (symp), ".bb"))
- stack_push (block_stack, (char *) &symp);
- else
- {
- symbolS *begin;
- begin = *(symbolS **) stack_pop (block_stack);
- if (begin == 0)
- as_warn ("mismatched .eb");
- else
- SA_SET_SYM_ENDNDX (begin, begin);
- }
- }
- if (last_functionP == 0 && SF_GET_FUNCTION (symp))
- {
- union internal_auxent *auxp;
- last_functionP = symp;
- if (S_GET_NUMBER_AUXILIARY (symp) < 1)
- S_SET_NUMBER_AUXILIARY (symp, 1);
- auxp = &coffsymbol (symp->bsym)->native[1].u.auxent;
- memset (auxp->x_sym.x_fcnary.x_ary.x_dimen, 0,
- sizeof (auxp->x_sym.x_fcnary.x_ary.x_dimen));
- }
- if (S_GET_STORAGE_CLASS (symp) == C_EFCN)
- {
- if (last_functionP == 0)
- as_fatal ("C_EFCN symbol out of scope");
- SA_SET_SYM_FSIZE (last_functionP,
- (long) (S_GET_VALUE (symp)
- - S_GET_VALUE (last_functionP)));
- SA_SET_SYM_ENDNDX (last_functionP, symp);
- last_functionP = 0;
- }
- }
- else if (SF_GET_TAG (symp))
- last_tagP = symp;
- else if (S_GET_STORAGE_CLASS (symp) == C_EOS)
- SA_SET_SYM_ENDNDX (last_tagP, symp);
- else if (S_GET_STORAGE_CLASS (symp) == C_FILE)
- {
- if (S_GET_VALUE (symp))
- {
- S_SET_VALUE ((symbolS *) S_GET_VALUE (symp), 0xdeadbeef);
- S_SET_VALUE (symp, 0);
- }
- }
- if (SF_GET_LOCAL (symp))
- *punt = 1;
- /* more ... */
- }
- if (coffsymbol (symp->bsym)->lineno)
- {
- int i, n;
- struct line_no *lptr;
- alent *l;
-
- lptr = (struct line_no *) coffsymbol (symp->bsym)->lineno;
- for (i = 0; lptr; lptr = lptr->next)
- i++;
- n = i + 1;
- lptr = (struct line_no *) coffsymbol (symp->bsym)->lineno;
- l = (alent *) bfd_alloc_by_size_t (stdoutput, n * sizeof (alent));
- coffsymbol (symp->bsym)->lineno = l;
- for (i = n - 1; i > 0; i--)
- {
- if (lptr->frag)
- lptr->l.u.offset += lptr->frag->fr_address;
- l[i] = lptr->l;
- lptr = lptr->next;
- }
- }
- }
-
- void
- DEFUN_VOID(obj_coff_section)
- {
- /* Strip out the section name */
- char *section_name ;
- char *section_name_end;
- char c;
-
- unsigned int len;
- unsigned int exp;
-
- section_name = input_line_pointer;
- c = get_symbol_end();
- section_name_end = input_line_pointer;
-
- len = section_name_end - section_name ;
- input_line_pointer++;
- SKIP_WHITESPACE();
- if (c == ',')
- exp = get_absolute_expression();
- else if (*input_line_pointer == ',')
- {
- input_line_pointer++;
- exp = get_absolute_expression();
- }
- else
- {
- exp = 0;
- }
-
- printf ("change_to_section(`%s',%d,%x)\n", section_name, len,exp);
- *section_name_end = c;
- }
-
- void
- coff_frob_file ()
- {
- if (symbol_rootP == NULL
- || S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE)
- {
- assert (previous_file_symbol == 0);
- c_dot_file_symbol ("fake");
- }
- if (current_lineno_sym)
- add_linesym ((symbolS *) 0);
- }
- #endif /* BFD_ASSEMBLER */
-
- #ifdef DEBUG
- /* for debugging */
- CONST char *
- s_get_name (s)
- symbolS *s;
- {
- return ((s == NULL) ? "(NULL)" : S_GET_NAME (s));
- } /* s_get_name() */
-
- void
- symbol_dump ()
- {
- symbolS *symbolP;
-
- for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP))
- {
- #ifdef BFD_ASSEMBLER
- printf("0x%lx: \"%s\" type = %ld, class = %d, segment = %d\n",
- (unsigned long) symbolP,
- S_GET_NAME(symbolP),
- (long) S_GET_DATA_TYPE(symbolP),
- S_GET_STORAGE_CLASS(symbolP),
- (int) S_GET_SEGMENT(symbolP));
- #else
- printf ("%3ld: 0x%lx \"%s\" type = %ld, class = %d, segment = %d\n",
- symbolP->sy_number,
- (unsigned long) symbolP,
- S_GET_NAME (symbolP),
- (long) S_GET_DATA_TYPE (symbolP),
- S_GET_STORAGE_CLASS (symbolP),
- (int) S_GET_SEGMENT (symbolP));
- #endif
- }
- }
-
- #endif /* DEBUG */
-
- /* end of obj-coff.c */
-