From 656c5b6d7e5f46dd8ce6540a52c543c09ec85f3c Mon Sep 17 00:00:00 2001 From: Ian Lance Taylor Date: Fri, 26 Apr 1996 23:16:52 +0000 Subject: [PATCH] * ecoff.c (ecoff_compute_section_file_positions): Track the real file position and the virtual file position separately. Set filepos information bsaed on the real file position. (_bfd_ecoff_set_section_contents): Handle .lib sections like the Jan 23 change to coffcode.h. Make Irix 4 shared libraries work again. --- bfd/ChangeLog | 6 +++ bfd/ecoff.c | 101 ++++++++++++++++++++++++++++++++++++-------------- 2 files changed, 79 insertions(+), 28 deletions(-) diff --git a/bfd/ChangeLog b/bfd/ChangeLog index f1c67f6f2d0..14f16b5cd1a 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,5 +1,11 @@ Fri Apr 26 18:00:37 1996 Ian Lance Taylor + * ecoff.c (ecoff_compute_section_file_positions): Track the real + file position and the virtual file position separately. Set + filepos information bsaed on the real file position. + (_bfd_ecoff_set_section_contents): Handle .lib sections like the + Jan 23 change to coffcode.h. + * som.c (som_slurp_symbol_table): Set the symbol count to the number of BFD symbols created. diff --git a/bfd/ecoff.c b/bfd/ecoff.c index 3524fc578bb..f4549d65769 100644 --- a/bfd/ecoff.c +++ b/bfd/ecoff.c @@ -1822,12 +1822,9 @@ _bfd_ecoff_find_nearest_line (abfd, section, ignore_symbols, offset, { ecoff_data (abfd)->find_line_info = ((struct ecoff_find_line *) - bfd_alloc (abfd, sizeof (struct ecoff_find_line))); + bfd_zalloc (abfd, sizeof (struct ecoff_find_line))); if (ecoff_data (abfd)->find_line_info == NULL) return false; - ecoff_data (abfd)->find_line_info->find_buffer = NULL; - ecoff_data (abfd)->find_line_info->fdrtab_len = 0; - ecoff_data (abfd)->find_line_info->fdrtab = NULL; } line_info = ecoff_data (abfd)->find_line_info; @@ -2043,7 +2040,7 @@ static boolean ecoff_compute_section_file_positions (abfd) bfd *abfd; { - file_ptr sofar; + file_ptr sofar, file_sofar; asection **sorted_hdrs; asection *current; unsigned int i; @@ -2052,6 +2049,7 @@ ecoff_compute_section_file_positions (abfd) const bfd_vma round = ecoff_backend (abfd)->round; sofar = _bfd_ecoff_sizeof_headers (abfd, false); + file_sofar = sofar; /* Sort the sections by VMA. */ sorted_hdrs = (asection **) bfd_malloc (abfd->section_count @@ -2075,10 +2073,6 @@ ecoff_compute_section_file_positions (abfd) current = sorted_hdrs[i]; - /* Only deal with sections which have contents */ - if ((current->flags & (SEC_HAS_CONTENTS | SEC_LOAD)) == 0) - continue; - /* For the Alpha ECOFF .pdata section the lnnoptr field is supposed to indicate the number of .pdata entries that are really in the section. Each entry is 8 bytes. We store this @@ -2107,6 +2101,7 @@ ecoff_compute_section_file_positions (abfd) && strcmp (current->name, _RCONST) != 0) { sofar = (sofar + round - 1) &~ (round - 1); + file_sofar = (file_sofar + round - 1) &~ (round - 1); first_data = false; } else if (strcmp (current->name, _LIB) == 0) @@ -2116,6 +2111,7 @@ ecoff_compute_section_file_positions (abfd) page boundary. */ sofar = (sofar + round - 1) &~ (round - 1); + file_sofar = (file_sofar + round - 1) &~ (round - 1); } else if (first_nonalloc && (current->flags & SEC_ALLOC) == 0 @@ -2126,31 +2122,42 @@ ecoff_compute_section_file_positions (abfd) for the .bss section. */ first_nonalloc = false; sofar = (sofar + round - 1) &~ (round - 1); + file_sofar = (file_sofar + round - 1) &~ (round - 1); } /* Align the sections in the file to the same boundary on which they are aligned in virtual memory. */ - old_sofar = sofar; sofar = BFD_ALIGN (sofar, 1 << alignment_power); + if ((current->flags & SEC_HAS_CONTENTS) != 0) + file_sofar = BFD_ALIGN (file_sofar, 1 << alignment_power); if ((abfd->flags & D_PAGED) != 0 && (current->flags & SEC_ALLOC) != 0) - sofar += (current->vma - sofar) % round; + { + sofar += (current->vma - sofar) % round; + if ((current->flags & SEC_HAS_CONTENTS) != 0) + file_sofar += (current->vma - file_sofar) % round; + } - current->filepos = sofar; + if ((current->flags & (SEC_HAS_CONTENTS | SEC_LOAD)) != 0) + current->filepos = file_sofar; sofar += current->_raw_size; + if ((current->flags & SEC_HAS_CONTENTS) != 0) + file_sofar += current->_raw_size; /* make sure that this section is of the right size too */ old_sofar = sofar; sofar = BFD_ALIGN (sofar, 1 << alignment_power); + if ((current->flags & SEC_HAS_CONTENTS) != 0) + file_sofar = BFD_ALIGN (file_sofar, 1 << alignment_power); current->_raw_size += sofar - old_sofar; } free (sorted_hdrs); sorted_hdrs = NULL; - ecoff_data (abfd)->reloc_filepos = sofar; + ecoff_data (abfd)->reloc_filepos = file_sofar; return true; } @@ -2230,11 +2237,22 @@ _bfd_ecoff_set_section_contents (abfd, section, location, offset, count) return false; } - /* If this is a .lib section, bump the vma address so that it winds - up being the number of .lib sections output. This is right for - Irix 4. Ian Taylor . */ + /* Handle the .lib section specially so that Irix 4 shared libraries + work out. See coff_set_section_contents in coffcode.h. */ if (strcmp (section->name, _LIB) == 0) - ++section->vma; + { + bfd_byte *rec, *recend; + + rec = (bfd_byte *) location; + recend = rec + count; + while (rec < recend) + { + ++section->lma; + rec += bfd_get_32 (abfd, rec) * 4; + } + + BFD_ASSERT (rec == recend); + } if (count == 0) return true; @@ -3407,6 +3425,7 @@ ecoff_link_add_archive_symbols (abfd, info) bfd *abfd; struct bfd_link_info *info; { + const struct ecoff_backend_data * const backend = ecoff_backend (abfd); const bfd_byte *raw_armap; struct bfd_link_hash_entry **pundef; unsigned int armap_count; @@ -3528,7 +3547,7 @@ ecoff_link_add_archive_symbols (abfd, info) hash = srch; } - element = _bfd_get_elt_at_filepos (abfd, file_offset); + element = (*backend->get_elt_at_filepos) (abfd, file_offset); if (element == (bfd *) NULL) return false; @@ -3959,6 +3978,14 @@ static boolean ecoff_reloc_link_order PARAMS ((bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *)); +/* Structure used to pass information to ecoff_link_write_external. */ + +struct extsym_info +{ + bfd *abfd; + struct bfd_link_info *info; +}; + /* ECOFF final link routine. This looks through all the input BFDs and gathers together all the debugging information, and then processes all the link order information. This may cause it to @@ -3976,6 +4003,7 @@ _bfd_ecoff_bfd_final_link (abfd, info) register bfd *input_bfd; asection *o; struct bfd_link_order *p; + struct extsym_info einfo; /* We accumulate the debugging information counts in the symbolic header. */ @@ -4046,9 +4074,11 @@ _bfd_ecoff_bfd_final_link (abfd, info) } /* Write out the external symbols. */ + einfo.abfd = abfd; + einfo.info = info; ecoff_link_hash_traverse (ecoff_hash_table (info), ecoff_link_write_external, - (PTR) abfd); + (PTR) &einfo); if (info->relocateable) { @@ -4269,11 +4299,24 @@ ecoff_link_write_external (h, data) struct ecoff_link_hash_entry *h; PTR data; { - bfd *output_bfd = (bfd *) data; - - /* FIXME: We should check if this symbol is being stripped. */ + struct extsym_info *einfo = (struct extsym_info *) data; + bfd *output_bfd = einfo->abfd; + boolean strip; + + /* We need to check if this symbol is being stripped. */ + if (h->root.type == bfd_link_hash_undefined + || h->root.type == bfd_link_hash_undefweak) + strip = false; + else if (einfo->info->strip == strip_all + || (einfo->info->strip == strip_some + && bfd_hash_lookup (einfo->info->keep_hash, + h->root.root.string, + false, false) == NULL)) + strip = true; + else + strip = false; - if (h->written) + if (strip || h->written) return true; if (h->abfd == (bfd *) NULL) @@ -4556,8 +4599,9 @@ ecoff_reloc_link_order (output_bfd, info, output_section, link_order) /* Treat a reloc against a defined symbol as though it were actually against the section. */ - h = bfd_link_hash_lookup (info->hash, link_order->u.reloc.p->u.name, - false, false, false); + h = bfd_wrapped_link_hash_lookup (output_bfd, info, + link_order->u.reloc.p->u.name, + false, false, false); if (h != NULL && (h->type == bfd_link_hash_defined || h->type == bfd_link_hash_defweak)) @@ -4633,9 +4677,10 @@ ecoff_reloc_link_order (output_bfd, info, output_section, link_order) { struct ecoff_link_hash_entry *h; - h = ecoff_link_hash_lookup (ecoff_hash_table (info), - link_order->u.reloc.p->u.name, - false, false, true); + h = ((struct ecoff_link_hash_entry *) + bfd_wrapped_link_hash_lookup (output_bfd, info, + link_order->u.reloc.p->u.name, + false, false, true)); if (h != (struct ecoff_link_hash_entry *) NULL && h->indx != -1) in.r_symndx = h->indx; -- 2.30.2