X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=bfd%2Felf32-cris.c;h=e759745d43b5d75087ebb282a97e8093bc64a203;hb=081b1afe5a8cfa02bf3b3cdefb80c266705c17d1;hp=f35292ed6245155b11f016594123a90101ea3832;hpb=6dd38d7935978de2a692f3042333a879eef18374;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/elf32-cris.c b/bfd/elf32-cris.c index f35292ed62..e759745d43 100644 --- a/bfd/elf32-cris.c +++ b/bfd/elf32-cris.c @@ -1,6 +1,5 @@ /* CRIS-specific support for 32-bit ELF. - Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, - 2010, 2011, 2012 Free Software Foundation, Inc. + Copyright (C) 2000-2016 Free Software Foundation, Inc. Contributed by Axis Communications AB. Written by Hans-Peter Nilsson, based on elf32-fr30.c PIC and shlib bits based primarily on elf32-m68k.c and elf32-i386.c. @@ -41,11 +40,11 @@ static reloc_howto_type cris_elf_howto_table [] = /* This reloc does nothing. */ HOWTO (R_CRIS_NONE, /* type */ 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ + 3, /* size (0 = byte, 1 = short, 2 = long) */ + 0, /* bitsize */ FALSE, /* pc_relative */ 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ + complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_CRIS_NONE", /* name */ FALSE, /* partial_inplace */ @@ -462,7 +461,11 @@ cris_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED, enum elf_cris_reloc_type r_type; r_type = ELF32_R_TYPE (dst->r_info); - BFD_ASSERT (r_type < (unsigned int) R_CRIS_max); + if (r_type >= R_CRIS_max) + { + _bfd_error_handler (_("%B: invalid CRIS reloc number: %d"), abfd, r_type); + r_type = 0; + } cache_ptr->howto = & cris_elf_howto_table [r_type]; } @@ -1040,13 +1043,13 @@ cris_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, } else { - bfd_boolean warned; + bfd_boolean warned, ignored; bfd_boolean unresolved_reloc; RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, r_symndx, symtab_hdr, sym_hashes, h, sec, relocation, - unresolved_reloc, warned); + unresolved_reloc, warned, ignored); symname = h->root.root.string; @@ -1089,8 +1092,8 @@ cris_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, time. FIXME: Not sure this example covers the h->elf_link_hash_flags test, though it's there in other targets. */ - if (info->shared - && ((! info->symbolic && h->dynindx != -1) + if (bfd_link_pic (info) + && ((!SYMBOLIC_BIND (info, h) && h->dynindx != -1) || !h->def_regular) && (input_section->flags & SEC_ALLOC) != 0 && (r_type == R_CRIS_8 @@ -1100,7 +1103,7 @@ cris_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, || r_type == R_CRIS_16_PCREL || r_type == R_CRIS_32_PCREL)) relocation = 0; - else if (!info->relocatable && unresolved_reloc + else if (!bfd_link_relocatable (info) && unresolved_reloc && (_bfd_elf_section_offset (output_bfd, info, input_section, rel->r_offset) @@ -1122,7 +1125,7 @@ cris_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, rel, 1, relend, howto, 0, contents); - if (info->relocatable) + if (bfd_link_relocatable (info)) continue; switch (r_type) @@ -1162,7 +1165,7 @@ cris_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, these call-specific relocs don't address non-functions. */ if (h != NULL && (h->got.offset == (bfd_vma) -1 - || (!info->shared + || (!bfd_link_pic (info) && !(h->def_regular || (!h->def_dynamic && h->root.type == bfd_link_hash_undefweak))))) @@ -1204,20 +1207,20 @@ cris_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, BFD_ASSERT (off != (bfd_vma) -1); if (!elf_hash_table (info)->dynamic_sections_created - || (! info->shared + || (! bfd_link_pic (info) && (h->def_regular || h->type == STT_FUNC || h->needs_plt)) - || (info->shared - && (info->symbolic || h->dynindx == -1) + || (bfd_link_pic (info) + && (SYMBOLIC_BIND (info, h) || h->dynindx == -1) && h->def_regular)) { - /* This wasn't checked above for ! info->shared, but + /* This wasn't checked above for ! bfd_link_pic (info), but must hold there if we get here; the symbol must be defined in the regular program or be undefweak or be a function or otherwise need a PLT. */ BFD_ASSERT (!elf_hash_table (info)->dynamic_sections_created - || info->shared + || bfd_link_pic (info) || h->def_regular || h->type == STT_FUNC || h->needs_plt @@ -1263,7 +1266,7 @@ cris_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, { bfd_put_32 (output_bfd, relocation, sgot->contents + off); - if (info->shared) + if (bfd_link_pic (info)) { Elf_Internal_Rela outrel; bfd_byte *loc; @@ -1324,7 +1327,7 @@ cris_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, defined in an ordinary (non-DSO) object or is undefined weak. */ if (h != NULL && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT - && !(!info->shared + && !(!bfd_link_pic (info) && (h->def_regular || (!h->def_dynamic && h->root.type == bfd_link_hash_undefweak)))) @@ -1423,13 +1426,13 @@ cris_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, case R_CRIS_8: case R_CRIS_16: case R_CRIS_32: - if (info->shared + if (bfd_link_pic (info) && r_symndx != STN_UNDEF && (input_section->flags & SEC_ALLOC) != 0 && ((r_type != R_CRIS_8_PCREL && r_type != R_CRIS_16_PCREL && r_type != R_CRIS_32_PCREL) - || (!info->symbolic + || (!SYMBOLIC_BIND (info, h) || (h != NULL && !h->def_regular)))) { Elf_Internal_Rela outrel; @@ -1481,7 +1484,7 @@ cris_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, /* h->dynindx may be -1 if the symbol was marked to become local. */ else if (h != NULL - && ((! info->symbolic && h->dynindx != -1) + && ((!SYMBOLIC_BIND (info, h) && h->dynindx != -1) || !h->def_regular)) { BFD_ASSERT (h->dynindx != -1); @@ -1554,7 +1557,7 @@ cris_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, if (h != NULL && (input_section->flags & SEC_ALLOC) != 0 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT - && (info->shared + && (bfd_link_pic (info) || (!h->def_regular && h->root.type != bfd_link_hash_undefined))) { @@ -1589,7 +1592,7 @@ cris_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, asection *sgotplt = bfd_get_linker_section (dynobj, ".got.plt"); BFD_ASSERT (sgotplt != NULL); - if (info->shared) + if (bfd_link_pic (info)) { Elf_Internal_Rela outrel; bfd_byte *loc; @@ -1628,7 +1631,7 @@ cris_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, break; case R_CRIS_32_GD: - if (info->shared) + if (bfd_link_pic (info)) { bfd_set_error (bfd_error_invalid_operation); @@ -1659,7 +1662,7 @@ cris_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, return FALSE; } - if (!info->shared + if (!bfd_link_pic (info) && (h == NULL || h->def_regular || ELF_COMMON_DEF_P (h))) { /* Known contents of the GOT. */ @@ -1780,7 +1783,7 @@ cris_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, break; case R_CRIS_32_IE: - if (info->shared) + if (bfd_link_pic (info)) { bfd_set_error (bfd_error_invalid_operation); @@ -1811,7 +1814,7 @@ cris_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, return FALSE; } - if (!info->shared + if (!bfd_link_pic (info) && (h == NULL || h->def_regular || ELF_COMMON_DEF_P (h))) { /* Known contents of the GOT. */ @@ -1917,7 +1920,7 @@ cris_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, case R_CRIS_32_TPREL: /* This relocation must only be performed against symbols defined in an ordinary (non-DSO) object. */ - if (info->shared) + if (bfd_link_pic (info)) { bfd_set_error (bfd_error_invalid_operation); @@ -1970,7 +1973,7 @@ cris_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, switch (r) { case bfd_reloc_overflow: - r = info->callbacks->reloc_overflow + (*info->callbacks->reloc_overflow) (info, (h ? &h->root : NULL), symname, howto->name, (bfd_vma) 0, input_bfd, input_section, rel->r_offset); if (additional_relocation_error_msg_count > 0) @@ -2007,9 +2010,8 @@ cris_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, break; case bfd_reloc_undefined: - r = info->callbacks->undefined_symbol - (info, symname, input_bfd, input_section, rel->r_offset, - TRUE); + (*info->callbacks->undefined_symbol) + (info, symname, input_bfd, input_section, rel->r_offset, TRUE); break; case bfd_reloc_outofrange: @@ -2030,11 +2032,8 @@ cris_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, } if (msg) - r = info->callbacks->warning - (info, msg, symname, input_bfd, input_section, rel->r_offset); - - if (! r) - return FALSE; + (*info->callbacks->warning) (info, msg, symname, input_bfd, + input_section, rel->r_offset); } } @@ -2136,7 +2135,7 @@ elf_cris_finish_dynamic_symbol (bfd *output_bfd, got_base = sgotplt->output_section->vma + sgotplt->output_offset; /* Fill in the entry in the procedure linkage table. */ - if (! info->shared) + if (! bfd_link_pic (info)) { memcpy (splt->contents + h->plt.offset, plt_entry, plt_entry_size); @@ -2212,7 +2211,7 @@ elf_cris_finish_dynamic_symbol (bfd *output_bfd, references to the function symbol are redirected to the PLT. */ if (h->got.offset != (bfd_vma) -1 && (elf_cris_hash_entry (h)->reg_got_refcount > 0) - && (info->shared + && (bfd_link_pic (info) || (h->dynindx != -1 && h->plt.offset == (bfd_vma) -1 && !h->def_regular @@ -2241,8 +2240,8 @@ elf_cris_finish_dynamic_symbol (bfd *output_bfd, initialized in the relocate_section function. */ where = sgot->contents + (h->got.offset &~ (bfd_vma) 1); if (! elf_hash_table (info)->dynamic_sections_created - || (info->shared - && (info->symbolic || h->dynindx == -1) + || (bfd_link_pic (info) + && (SYMBOLIC_BIND (info, h) || h->dynindx == -1) && h->def_regular)) { rela.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE); @@ -2333,22 +2332,21 @@ elf_cris_finish_dynamic_sections (bfd *output_bfd, break; case DT_PLTGOT: - s = bfd_get_section_by_name (output_bfd, ".got"); - BFD_ASSERT (s != NULL); - dyn.d_un.d_ptr = s->vma; + dyn.d_un.d_ptr = sgot->output_section->vma + sgot->output_offset; bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); break; case DT_JMPREL: /* Yes, we *can* have a .plt and no .plt.rela, for instance if all symbols are found in the .got (not .got.plt). */ - s = bfd_get_section_by_name (output_bfd, ".rela.plt"); - dyn.d_un.d_ptr = s != NULL ? s->vma : 0; + s = bfd_get_linker_section (dynobj, ".rela.plt"); + dyn.d_un.d_ptr = s != NULL ? (s->output_section->vma + + s->output_offset) : 0; bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); break; case DT_PLTRELSZ: - s = bfd_get_section_by_name (output_bfd, ".rela.plt"); + s = bfd_get_linker_section (dynobj, ".rela.plt"); if (s == NULL) dyn.d_un.d_val = 0; else @@ -2364,7 +2362,7 @@ elf_cris_finish_dynamic_sections (bfd *output_bfd, 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_section_by_name (output_bfd, ".rela.plt"); + 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); @@ -2377,7 +2375,7 @@ elf_cris_finish_dynamic_sections (bfd *output_bfd, { if (bfd_get_mach (output_bfd) == bfd_mach_cris_v32) { - if (info->shared) + if (bfd_link_pic (info)) memcpy (splt->contents, elf_cris_pic_plt0_entry_v32, PLT_ENTRY_SIZE_V32); else @@ -2395,7 +2393,7 @@ elf_cris_finish_dynamic_sections (bfd *output_bfd, } else { - if (info->shared) + if (bfd_link_pic (info)) memcpy (splt->contents, elf_cris_pic_plt0_entry, PLT_ENTRY_SIZE); else @@ -2478,7 +2476,7 @@ cris_elf_gc_sweep_hook (bfd *abfd, asection *sgot; asection *srelgot; - if (info->relocatable) + if (bfd_link_relocatable (info)) return TRUE; dynobj = elf_hash_table (info)->dynobj; @@ -2589,7 +2587,7 @@ cris_elf_gc_sweep_hook (bfd *abfd, { /* We don't need the .got entry any more. */ sgot->size -= got_element_size; - if (info->shared) + if (bfd_link_pic (info)) srelgot->size -= sizeof (Elf32_External_Rela); } } @@ -2883,7 +2881,7 @@ elf_cris_adjust_dynamic_symbol (struct bfd_link_info *info, result as one built without -fpic, specifically considering weak symbols. FIXME: m68k and i386 differ here, for unclear reasons. */ - if (! info->shared + if (! bfd_link_pic (info) && !h->def_dynamic) { /* This case can occur if we saw a PLT reloc in an input file, @@ -2905,7 +2903,7 @@ elf_cris_adjust_dynamic_symbol (struct bfd_link_info *info, like R_CRIS_JUMP_SLOT after symbol evaluation) we could get rid of the PLT. We can't for the executable, because the GOT entries will point to the PLT there (and be constant). */ - if (info->shared + if (bfd_link_pic (info) && !elf_cris_try_fold_plt_to_got ((struct elf_cris_link_hash_entry*) h, info)) return FALSE; @@ -2936,7 +2934,7 @@ elf_cris_adjust_dynamic_symbol (struct bfd_link_info *info, /* If this symbol is not defined in a regular file, and we are not generating a shared library, then set the symbol to this location in the .plt. */ - if (!info->shared + if (!bfd_link_pic (info) && !h->def_regular) { h->root.u.def.section = s; @@ -2949,7 +2947,7 @@ elf_cris_adjust_dynamic_symbol (struct bfd_link_info *info, executable, because then the reloc associated with the PLT would get a non-PLT reloc pointing to the PLT. FIXME: Move this to elf_cris_try_fold_plt_to_got. */ - if (info->shared && h->got.refcount > 0) + if (bfd_link_pic (info) && h->got.refcount > 0) { h->got.refcount += h->plt.refcount; @@ -3020,7 +3018,7 @@ elf_cris_adjust_dynamic_symbol (struct bfd_link_info *info, only references to the symbol are via the global offset table. For such cases we need not do anything here; the relocations will be handled correctly by relocate_section. */ - if (info->shared) + if (bfd_link_pic (info)) return TRUE; /* If there are no references to this symbol that do not use the @@ -3055,7 +3053,7 @@ elf_cris_adjust_dynamic_symbol (struct bfd_link_info *info, h->needs_copy = 1; } - return _bfd_elf_adjust_dynamic_copy (h, s); + return _bfd_elf_adjust_dynamic_copy (info, h, s); } /* Adjust our "subclass" elements for an indirect symbol. */ @@ -3140,7 +3138,7 @@ cris_elf_check_relocs (bfd *abfd, asection *srelgot; asection *sreloc; - if (info->relocatable) + if (bfd_link_relocatable (info)) return TRUE; htab = elf_cris_hash_table (info); @@ -3283,7 +3281,7 @@ cris_elf_check_relocs (bfd *abfd, of the first entry is constant there. For a shared library, we need .got.rela for the R_CRIS_DTPMOD relocation at index 3. */ - if (!info->shared) + if (!bfd_link_pic (info)) break; /* Fall through. */ @@ -3307,7 +3305,7 @@ cris_elf_check_relocs (bfd *abfd, case R_CRIS_16_GOT: case R_CRIS_32_GOT: if (srelgot == NULL - && (h != NULL || info->shared)) + && (h != NULL || bfd_link_pic (info))) { srelgot = bfd_get_linker_section (dynobj, ".rela.got"); if (srelgot == NULL) @@ -3336,7 +3334,7 @@ cris_elf_check_relocs (bfd *abfd, case R_CRIS_32_TPREL: case R_CRIS_16_TPREL: case R_CRIS_32_GD: - if (info->shared) + if (bfd_link_pic (info)) { (*_bfd_error_handler) (_("%B, section %A:\n relocation %s not valid" @@ -3378,7 +3376,7 @@ cris_elf_check_relocs (bfd *abfd, /* Those relocs also require that a DSO is of type Initial Exec. Like other targets, we don't reset this flag even if the relocs are GC:ed away. */ - if (info->shared) + if (bfd_link_pic (info)) info->flags |= DF_STATIC_TLS; break; @@ -3481,7 +3479,7 @@ cris_elf_check_relocs (bfd *abfd, if (local_got_refcounts[r_symndx_lgot] == 0) { sgot->size += got_element_size; - if (info->shared) + if (bfd_link_pic (info)) { /* If we are generating a shared object, we need to output a R_CRIS_RELATIVE reloc so that the @@ -3547,7 +3545,7 @@ cris_elf_check_relocs (bfd *abfd, can't help tables of (global) function pointers, for example, though they must be emitted in a (writable) data section to avoid having impure text sections. */ - if (info->shared + if (bfd_link_pic (info) && (sec->flags & SEC_ALLOC) != 0 && (sec->flags & SEC_READONLY) != 0) { @@ -3591,7 +3589,7 @@ cris_elf_check_relocs (bfd *abfd, render the symbol local. */ /* No need to do anything if we're not creating a shared object. */ - if (! info->shared) + if (! bfd_link_pic (info)) break; /* We may need to create a reloc section in the dynobj and made room @@ -3640,7 +3638,7 @@ cris_elf_check_relocs (bfd *abfd, render the symbol local. */ /* No need to do anything if we're not creating a shared object. */ - if (! info->shared) + if (! bfd_link_pic (info)) break; /* We don't need to handle relocs into sections not going into @@ -3658,7 +3656,7 @@ cris_elf_check_relocs (bfd *abfd, this shared library) then we can also eliminate the reloc. See comment above for more eliminable cases which we can't identify at this time. */ - if (info->symbolic + if (SYMBOLIC_BIND (info, h) && h->root.type != bfd_link_hash_defweak && h->def_regular) break; @@ -3761,7 +3759,7 @@ elf_cris_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, if (elf_hash_table (info)->dynamic_sections_created) { /* Set the contents of the .interp section to the interpreter. */ - if (info->executable) + if (bfd_link_executable (info) && !info->nointerp) { s = bfd_get_linker_section (dynobj, ".interp"); BFD_ASSERT (s != NULL); @@ -3792,7 +3790,7 @@ elf_cris_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, for relocs that have become for local symbols due to symbol visibility changes. For programs, we discard space for relocs for symbols not referenced by any dynamic object. */ - if (info->shared) + if (bfd_link_pic (info)) elf_cris_link_hash_traverse (htab, elf_cris_discard_excess_dso_dynamics, info); @@ -3834,7 +3832,7 @@ elf_cris_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, { if (strcmp (name, ".rela.got") == 0 && htab->dtpmod_refcount != 0 - && info->shared) + && bfd_link_pic (info)) s->size += sizeof (Elf32_External_Rela); if (s->size != 0) @@ -3894,7 +3892,7 @@ elf_cris_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, #define add_dynamic_entry(TAG, VAL) \ _bfd_elf_add_dynamic_entry (info, TAG, VAL) - if (!info->shared) + if (!bfd_link_pic (info)) { if (!add_dynamic_entry (DT_DEBUG, 0)) return FALSE; @@ -3950,7 +3948,7 @@ elf_cris_discard_excess_dso_dynamics (struct elf_cris_link_hash_entry *h, any relocs. */ if (h->root.def_regular && (h->root.forced_local - || info->symbolic)) + || SYMBOLIC_BIND (info, &h->root))) { for (s = h->pcrel_relocs_copied; s != NULL; s = s->next) { @@ -4029,8 +4027,10 @@ elf_cris_discard_excess_program_dynamics (struct elf_cris_link_hash_entry *h, have to export it as a dynamic symbol. This was already done for functions; doing this for all symbols would presumably not introduce new problems. Of course we don't do this if we're - exporting all dynamic symbols. */ - if (! info->export_dynamic + exporting all dynamic symbols, or all data symbols, regardless of + them being referenced or not. */ + if (! (info->export_dynamic + || (h->root.type != STT_FUNC && info->dynamic_data)) && h->root.dynindx != -1 && !h->root.def_dynamic && !h->root.ref_dynamic) @@ -4335,7 +4335,7 @@ elf_cris_got_elt_size (bfd *abfd ATTRIBUTE_UNUSED, #define ELF_MACHINE_CODE EM_CRIS #define ELF_MAXPAGESIZE 0x2000 -#define TARGET_LITTLE_SYM bfd_elf32_cris_vec +#define TARGET_LITTLE_SYM cris_elf32_vec #define TARGET_LITTLE_NAME "elf32-cris" #define elf_symbol_leading_char 0 @@ -4404,7 +4404,7 @@ elf_cris_got_elt_size (bfd *abfd ATTRIBUTE_UNUSED, #undef TARGET_LITTLE_NAME #undef elf_symbol_leading_char -#define TARGET_LITTLE_SYM bfd_elf32_us_cris_vec +#define TARGET_LITTLE_SYM cris_elf32_us_vec #define TARGET_LITTLE_NAME "elf32-us-cris" #define elf_symbol_leading_char '_' #undef elf32_bed