X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=bfd%2Felf32-vax.c;h=54364ed0e0ccf0954793e71394950b61c3b48c01;hb=09aca9495c4794e586680f359e612ece173148ec;hp=02b69a1d0db8e60de18496eb15cf729dd5e14e3c;hpb=695344c018c8e462280c47a644df02ea472b0a4e;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/elf32-vax.c b/bfd/elf32-vax.c index 02b69a1d0d..54364ed0e0 100644 --- a/bfd/elf32-vax.c +++ b/bfd/elf32-vax.c @@ -1,5 +1,5 @@ /* VAX series support for 32-bit ELF - Copyright (C) 1993-2016 Free Software Foundation, Inc. + Copyright (C) 1993-2018 Free Software Foundation, Inc. Contributed by Matt Thomas . This file is part of BFD, the Binary File Descriptor library. @@ -561,8 +561,6 @@ elf_vax_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec, struct elf_link_hash_entry **sym_hashes; const Elf_Internal_Rela *rel; const Elf_Internal_Rela *rel_end; - asection *sgot; - asection *srelgot; asection *sreloc; if (bfd_link_relocatable (info)) @@ -572,8 +570,6 @@ elf_vax_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec, symtab_hdr = &elf_tdata (abfd)->symtab_hdr; sym_hashes = elf_sym_hashes (abfd); - sgot = NULL; - srelgot = NULL; sreloc = NULL; rel_end = relocs + sec->reloc_count; @@ -592,10 +588,6 @@ elf_vax_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec, while (h->root.type == bfd_link_hash_indirect || h->root.type == bfd_link_hash_warning) h = (struct elf_link_hash_entry *) h->root.u.i.link; - - /* PR15323, ref flags aren't set for references in the same - object. */ - h->root.non_ir_ref = 1; } switch (ELF32_R_TYPE (rel->r_info)) @@ -620,31 +612,6 @@ elf_vax_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec, return FALSE; } - if (sgot == NULL) - { - sgot = bfd_get_linker_section (dynobj, ".got"); - BFD_ASSERT (sgot != NULL); - } - - if (srelgot == NULL - && (h != NULL || bfd_link_pic (info))) - { - srelgot = bfd_get_linker_section (dynobj, ".rela.got"); - if (srelgot == NULL) - { - flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS - | SEC_IN_MEMORY | SEC_LINKER_CREATED - | SEC_READONLY); - - srelgot = bfd_make_section_anyway_with_flags (dynobj, - ".rela.got", - flags); - if (srelgot == NULL - || !bfd_set_section_alignment (dynobj, srelgot, 2)) - return FALSE; - } - } - if (h != NULL) { struct elf_vax_link_hash_entry *eh; @@ -661,10 +628,9 @@ elf_vax_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec, if (eh->got_addend != (bfd_vma) rel->r_addend) _bfd_error_handler /* xgettext:c-format */ - (_("%s: warning: GOT addend of %ld to `%s' does" - " not match previous GOT addend of %ld"), - bfd_get_filename (abfd), rel->r_addend, - h->root.root.string, + (_("%B: warning: GOT addend of %Ld to `%s' does" + " not match previous GOT addend of %Ld"), + abfd, rel->r_addend, h->root.root.string, eh->got_addend); } @@ -674,10 +640,10 @@ elf_vax_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec, case R_VAX_PLT32: /* This symbol requires a procedure linkage table entry. We actually build the entry in adjust_dynamic_symbol, - because this might be a case of linking PIC code which is - never referenced by a dynamic object, in which case we - don't need to generate a procedure linkage table entry - after all. */ + because this might be a case of linking PIC code which is + never referenced by a dynamic object, in which case we + don't need to generate a procedure linkage table entry + after all. */ BFD_ASSERT (h != NULL); /* If this is a local symbol, we resolve it directly without @@ -851,68 +817,6 @@ elf_vax_gc_mark_hook (asection *sec, return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); } -/* Update the got entry reference counts for the section being removed. */ - -static bfd_boolean -elf_vax_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, asection *sec, - const Elf_Internal_Rela *relocs) -{ - Elf_Internal_Shdr *symtab_hdr; - struct elf_link_hash_entry **sym_hashes; - const Elf_Internal_Rela *rel, *relend; - bfd *dynobj; - - if (bfd_link_relocatable (info)) - return TRUE; - - dynobj = elf_hash_table (info)->dynobj; - if (dynobj == NULL) - return TRUE; - - symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - sym_hashes = elf_sym_hashes (abfd); - - relend = relocs + sec->reloc_count; - for (rel = relocs; rel < relend; rel++) - { - unsigned long r_symndx; - struct elf_link_hash_entry *h = NULL; - - r_symndx = ELF32_R_SYM (rel->r_info); - if (r_symndx >= symtab_hdr->sh_info) - { - h = sym_hashes[r_symndx - symtab_hdr->sh_info]; - while (h->root.type == bfd_link_hash_indirect - || h->root.type == bfd_link_hash_warning) - h = (struct elf_link_hash_entry *) h->root.u.i.link; - } - - switch (ELF32_R_TYPE (rel->r_info)) - { - case R_VAX_GOT32: - if (h != NULL && h->got.refcount > 0) - --h->got.refcount; - break; - - case R_VAX_PLT32: - case R_VAX_PC8: - case R_VAX_PC16: - case R_VAX_PC32: - case R_VAX_8: - case R_VAX_16: - case R_VAX_32: - if (h != NULL && h->plt.refcount > 0) - --h->plt.refcount; - break; - - default: - break; - } - } - - return TRUE; -} - /* Adjust a symbol defined by a dynamic object and referenced by a regular object. The current definition is in some section of the dynamic object, but we're not including those sections. We have to @@ -931,7 +835,7 @@ elf_vax_adjust_dynamic_symbol (struct bfd_link_info *info, /* Make sure we know what is going on here. */ BFD_ASSERT (dynobj != NULL && (h->needs_plt - || h->u.weakdef != NULL + || h->is_weakalias || (h->def_dynamic && h->ref_regular && !h->def_regular))); @@ -957,7 +861,7 @@ elf_vax_adjust_dynamic_symbol (struct bfd_link_info *info, return TRUE; } - s = bfd_get_linker_section (dynobj, ".plt"); + s = elf_hash_table (info)->splt; BFD_ASSERT (s != NULL); /* If this is the first .plt entry, make room for the special @@ -987,13 +891,13 @@ elf_vax_adjust_dynamic_symbol (struct bfd_link_info *info, /* We also need to make an entry in the .got.plt section, which will be placed in the .got section by the linker script. */ - s = bfd_get_linker_section (dynobj, ".got.plt"); + s = elf_hash_table (info)->sgotplt; BFD_ASSERT (s != NULL); s->size += 4; /* We also need to make an entry in the .rela.plt section. */ - s = bfd_get_linker_section (dynobj, ".rela.plt"); + s = elf_hash_table (info)->srelplt; BFD_ASSERT (s != NULL); s->size += sizeof (Elf32_External_Rela); @@ -1007,12 +911,12 @@ elf_vax_adjust_dynamic_symbol (struct bfd_link_info *info, /* If this is a weak symbol, and there is a real definition, the processor independent code will have arranged for us to see the real definition first, and we can just use the same value. */ - if (h->u.weakdef != NULL) + if (h->is_weakalias) { - BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined - || h->u.weakdef->root.type == bfd_link_hash_defweak); - h->root.u.def.section = h->u.weakdef->root.u.def.section; - h->root.u.def.value = h->u.weakdef->root.u.def.value; + struct elf_link_hash_entry *def = weakdef (h); + BFD_ASSERT (def->root.type == bfd_link_hash_defined); + h->root.u.def.section = def->root.u.def.section; + h->root.u.def.value = def->root.u.def.value; return TRUE; } @@ -1088,13 +992,13 @@ elf_vax_always_size_sections (bfd *output_bfd ATTRIBUTE_UNUSED, not actually use these entries. Reset the size of .rela.got and .got, which will cause them to get stripped from the output file below. */ - s = bfd_get_linker_section (dynobj, ".rela.got"); + s = elf_hash_table (info)->srelgot; if (s != NULL) s->size = 0; - s = bfd_get_linker_section (dynobj, ".got.plt"); + s = elf_hash_table (info)->sgotplt; if (s != NULL) s->size = 0; - s = bfd_get_linker_section (dynobj, ".got"); + s = elf_hash_table (info)->sgot; if (s != NULL) s->size = 0; } @@ -1180,7 +1084,7 @@ elf_vax_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) asection *target; /* Remember whether there are any reloc sections other - than .rela.plt. */ + than .rela.plt. */ if (strcmp (name, ".rela.plt") != 0) { const char *outname; @@ -1324,8 +1228,8 @@ elf_vax_instantiate_got_entries (struct elf_link_hash_entry *h, void * infoptr) dynobj = elf_hash_table (info)->dynobj; BFD_ASSERT (dynobj != NULL); - sgot = bfd_get_linker_section (dynobj, ".got"); - srelgot = bfd_get_linker_section (dynobj, ".rela.got"); + sgot = elf_hash_table (info)->sgot; + srelgot = elf_hash_table (info)->srelgot; if (SYMBOL_REFERENCES_LOCAL (info, h)) { @@ -1361,7 +1265,6 @@ elf_vax_relocate_section (bfd *output_bfd, Elf_Internal_Sym *local_syms, asection **local_sections) { - bfd *dynobj; Elf_Internal_Shdr *symtab_hdr; struct elf_link_hash_entry **sym_hashes; bfd_vma plt_index; @@ -1373,7 +1276,6 @@ elf_vax_relocate_section (bfd *output_bfd, Elf_Internal_Rela *rel; Elf_Internal_Rela *relend; - dynobj = elf_hash_table (info)->dynobj; symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; sym_hashes = elf_sym_hashes (input_bfd); @@ -1478,11 +1380,8 @@ elf_vax_relocate_section (bfd *output_bfd, { bfd_vma off; - if (sgot == NULL) - { - sgot = bfd_get_linker_section (dynobj, ".got"); - BFD_ASSERT (sgot != NULL); - } + sgot = elf_hash_table (info)->sgot; + BFD_ASSERT (sgot != NULL); off = h->got.offset; BFD_ASSERT (off < sgot->size); @@ -1517,17 +1416,11 @@ elf_vax_relocate_section (bfd *output_bfd, || h->plt.offset == (bfd_vma) -1) break; - if (splt == NULL) - { - splt = bfd_get_linker_section (dynobj, ".plt"); - BFD_ASSERT (splt != NULL); - } + splt = elf_hash_table (info)->splt; + BFD_ASSERT (splt != NULL); - if (sgotplt == NULL) - { - sgotplt = bfd_get_linker_section (dynobj, ".got.plt"); - BFD_ASSERT (sgotplt != NULL); - } + sgotplt = elf_hash_table (info)->sgotplt; + BFD_ASSERT (sgotplt != NULL); plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; @@ -1549,10 +1442,9 @@ elf_vax_relocate_section (bfd *output_bfd, else if (rel->r_addend != 0) _bfd_error_handler /* xgettext:c-format */ - (_("%s: warning: PLT addend of %d to `%s' from %s section ignored"), - bfd_get_filename (input_bfd), rel->r_addend, - h->root.root.string, - bfd_get_section_name (input_bfd, input_section)); + (_("%B: warning: PLT addend of %Ld to `%s'" + " from %A section ignored"), + input_bfd, rel->r_addend, h->root.root.string, input_section); rel->r_addend = 0; break; @@ -1609,7 +1501,7 @@ elf_vax_relocate_section (bfd *output_bfd, if (skip) memset (&outrel, 0, sizeof outrel); /* h->dynindx may be -1 if the symbol was marked to - become local. */ + become local. */ else if (h != NULL && ((! info->symbolic && h->dynindx != -1) || !h->def_regular)) @@ -1675,26 +1567,25 @@ elf_vax_relocate_section (bfd *output_bfd, if (h != NULL) _bfd_error_handler /* xgettext:c-format */ - (_("%s: warning: %s relocation against symbol `%s' from %s section"), - bfd_get_filename (input_bfd), howto->name, - h->root.root.string, - bfd_get_section_name (input_bfd, input_section)); + (_("%B: warning: %s relocation against symbol `%s'" + " from %A section"), + input_bfd, howto->name, h->root.root.string, + input_section); else _bfd_error_handler /* xgettext:c-format */ - (_("%s: warning: %s relocation to 0x%x from %s section"), - bfd_get_filename (input_bfd), howto->name, - outrel.r_addend, - bfd_get_section_name (input_bfd, input_section)); + (_("%B: warning: %s relocation to %#Lx from %A section"), + input_bfd, howto->name, outrel.r_addend, + input_section); } loc = sreloc->contents; loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); /* This reloc will be computed at runtime, so there's no - need to do anything now, except for R_VAX_32 - relocations that have been turned into - R_VAX_RELATIVE. */ + need to do anything now, except for R_VAX_32 + relocations that have been turned into + R_VAX_RELATIVE. */ if (!relocate) continue; } @@ -1711,8 +1602,8 @@ elf_vax_relocate_section (bfd *output_bfd, } /* VAX PCREL relocations are from the end of relocation, not the start. - So subtract the difference from the relocation amount since we can't - add it to the offset. */ + So subtract the difference from the relocation amount since we can't + add it to the offset. */ if (howto->pc_relative && howto->pcrel_offset) relocation -= bfd_get_reloc_size(howto); @@ -1782,9 +1673,9 @@ elf_vax_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info, it up. */ BFD_ASSERT (h->dynindx != -1); - splt = bfd_get_linker_section (dynobj, ".plt"); - sgot = bfd_get_linker_section (dynobj, ".got.plt"); - srela = bfd_get_linker_section (dynobj, ".rela.plt"); + splt = elf_hash_table (info)->splt; + sgot = elf_hash_table (info)->sgotplt; + srela = elf_hash_table (info)->srelplt; BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL); addend = 2 * (h->plt.offset & 1); @@ -1803,7 +1694,7 @@ elf_vax_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info, /* Fill in the entry in the procedure linkage table. */ memcpy (splt->contents + h->plt.offset, elf_vax_plt_entry, - PLT_ENTRY_SIZE); + PLT_ENTRY_SIZE); /* The offset is relative to the first extension word. */ bfd_put_32 (output_bfd, @@ -1846,8 +1737,8 @@ elf_vax_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info, /* This symbol has an entry in the global offset table. Set it up. */ - sgot = bfd_get_linker_section (dynobj, ".got"); - srela = bfd_get_linker_section (dynobj, ".rela.got"); + sgot = elf_hash_table (info)->sgot; + srela = elf_hash_table (info)->srelgot; BFD_ASSERT (sgot != NULL && srela != NULL); rela.r_offset = (sgot->output_section->vma @@ -1904,7 +1795,7 @@ elf_vax_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) dynobj = elf_hash_table (info)->dynobj; - sgot = bfd_get_linker_section (dynobj, ".got.plt"); + sgot = elf_hash_table (info)->sgotplt; BFD_ASSERT (sgot != NULL); sdyn = bfd_get_linker_section (dynobj, ".dynamic"); @@ -1913,7 +1804,7 @@ elf_vax_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) asection *splt; Elf32_External_Dyn *dyncon, *dynconend; - splt = bfd_get_linker_section (dynobj, ".plt"); + splt = elf_hash_table (info)->splt; BFD_ASSERT (splt != NULL && sdyn != NULL); dyncon = (Elf32_External_Dyn *) sdyn->contents; @@ -1921,7 +1812,6 @@ elf_vax_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) for (; dyncon < dynconend; dyncon++) { Elf_Internal_Dyn dyn; - const char *name; asection *s; bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); @@ -1932,35 +1822,20 @@ elf_vax_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) break; case DT_PLTGOT: - name = ".got.plt"; + s = elf_hash_table (info)->sgotplt; goto get_vma; case DT_JMPREL: - name = ".rela.plt"; + s = elf_hash_table (info)->srelplt; get_vma: - s = bfd_get_linker_section (dynobj, name); dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); break; case DT_PLTRELSZ: - s = bfd_get_linker_section (dynobj, ".rela.plt"); + s = elf_hash_table (info)->srelplt; dyn.d_un.d_val = s->size; bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); break; - - case DT_RELASZ: - /* The procedure linkage table relocs (DT_JMPREL) should - not be included in the overall relocs (DT_RELA). - Therefore, we override the DT_RELASZ entry here to - make it not include the JMPREL relocs. Since the - linker script arranges for .rela.plt to follow all - other relocation sections, we don't have to worry - about changing the DT_RELA entry. */ - s = bfd_get_linker_section (dynobj, ".rela.plt"); - if (s != NULL) - dyn.d_un.d_val -= s->size; - bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); - break; } } @@ -1969,17 +1844,17 @@ elf_vax_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) { memcpy (splt->contents, elf_vax_plt0_entry, PLT_ENTRY_SIZE); bfd_put_32 (output_bfd, - (sgot->output_section->vma - + sgot->output_offset + 4 - - (splt->output_section->vma + 6)), - splt->contents + 2); + (sgot->output_section->vma + + sgot->output_offset + 4 + - (splt->output_section->vma + 6)), + splt->contents + 2); bfd_put_32 (output_bfd, - (sgot->output_section->vma - + sgot->output_offset + 8 - - (splt->output_section->vma + 12)), - splt->contents + 8); - elf_section_data (splt->output_section)->this_hdr.sh_entsize - = PLT_ENTRY_SIZE; + (sgot->output_section->vma + + sgot->output_offset + 8 + - (splt->output_section->vma + 12)), + splt->contents + 8); + elf_section_data (splt->output_section)->this_hdr.sh_entsize + = PLT_ENTRY_SIZE; } } @@ -2053,14 +1928,13 @@ elf_vax_plt_sym_val (bfd_vma i, const asection *plt, elf_vax_finish_dynamic_sections #define elf_backend_reloc_type_class elf_vax_reloc_type_class #define elf_backend_gc_mark_hook elf_vax_gc_mark_hook -#define elf_backend_gc_sweep_hook elf_vax_gc_sweep_hook #define elf_backend_plt_sym_val elf_vax_plt_sym_val #define bfd_elf32_bfd_merge_private_bfd_data \ - elf32_vax_merge_private_bfd_data + elf32_vax_merge_private_bfd_data #define bfd_elf32_bfd_set_private_flags \ - elf32_vax_set_private_flags + elf32_vax_set_private_flags #define bfd_elf32_bfd_print_private_bfd_data \ - elf32_vax_print_private_bfd_data + elf32_vax_print_private_bfd_data #define elf_backend_can_gc_sections 1 #define elf_backend_want_got_plt 1 @@ -2068,5 +1942,6 @@ elf_vax_plt_sym_val (bfd_vma i, const asection *plt, #define elf_backend_want_plt_sym 0 #define elf_backend_got_header_size 16 #define elf_backend_rela_normal 1 +#define elf_backend_dtrel_excludes_plt 1 #include "elf32-target.h"