diff options
Diffstat (limited to 'bfd/elf32-frv.c')
| -rw-r--r-- | bfd/elf32-frv.c | 567 |
1 files changed, 394 insertions, 173 deletions
diff --git a/bfd/elf32-frv.c b/bfd/elf32-frv.c index 488438e..6412acd 100644 --- a/bfd/elf32-frv.c +++ b/bfd/elf32-frv.c @@ -1,5 +1,5 @@ /* FRV-specific support for 32-bit ELF. - Copyright 2002, 2003 Free Software Foundation, Inc. + Copyright 2002, 2003, 2004 Free Software Foundation, Inc. This file is part of BFD, the Binary File Descriptor library. @@ -22,6 +22,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "libbfd.h" #include "elf-bfd.h" #include "elf/frv.h" +#include "elf/dwarf2.h" #include "hashtab.h" /* Forward declarations. */ @@ -51,7 +52,7 @@ static bfd_boolean elf32_frv_relocate_section PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); static bfd_boolean elf32_frv_add_symbol_hook - PARAMS (( bfd *, struct bfd_link_info *, const Elf_Internal_Sym *, + PARAMS (( bfd *, struct bfd_link_info *, Elf_Internal_Sym *, const char **, flagword *, asection **, bfd_vma *)); static bfd_reloc_status_type frv_final_link_relocate PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *, @@ -117,7 +118,7 @@ static reloc_howto_type elf32_frv_howto_table [] = 16, /* bitsize */ TRUE, /* pc_relative */ 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ + complain_overflow_signed, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_FRV_LABEL16", /* name */ FALSE, /* partial_inplace */ @@ -659,7 +660,6 @@ frv_elf_link_hash_table_create (bfd *abfd) #define FRV_SYM_LOCAL(INFO, H) \ (_bfd_elf_symbol_refs_local_p ((H), (INFO), 1) \ || ! elf_hash_table (INFO)->dynamic_sections_created \ - || (H)->root.type == bfd_link_hash_undefweak \ || (/* The condition below is an ugly hack to get .scommon data to be regarded as local. For some reason the ELF_LINK_HASH_DEF_REGULAR bit is not set on such common @@ -748,6 +748,10 @@ struct frv_pic_relocs_info relocations referencing the symbol. */ unsigned relocs32, relocsfd, relocsfdv; + /* The number of .rofixups entries and dynamic relocations allocated + for this symbol, minus any that might have already been used. */ + unsigned fixups, dynrelocs; + /* The offsets of the GOT entries assigned to symbol+addend, to the function descriptor's address, and to a function descriptor, respectively. Should be zero if unassigned. The offsets are @@ -789,10 +793,14 @@ frv_pic_relocs_info_eq (const void *entry1, const void *entry2) static struct frv_pic_relocs_info * frv_pic_relocs_info_find (struct htab *ht, bfd *abfd, - const struct frv_pic_relocs_info *entry) + const struct frv_pic_relocs_info *entry, + enum insert_option insert) { struct frv_pic_relocs_info **loc = - (struct frv_pic_relocs_info **) htab_find_slot (ht, entry, INSERT); + (struct frv_pic_relocs_info **) htab_find_slot (ht, entry, insert); + + if (! loc) + return NULL; if (*loc) return *loc; @@ -818,7 +826,8 @@ inline static struct frv_pic_relocs_info * frv_pic_relocs_info_for_global (struct htab *ht, bfd *abfd, struct elf_link_hash_entry *h, - bfd_vma addend) + bfd_vma addend, + enum insert_option insert) { struct frv_pic_relocs_info entry; @@ -826,7 +835,7 @@ frv_pic_relocs_info_for_global (struct htab *ht, entry.d.h = h; entry.addend = addend; - return frv_pic_relocs_info_find (ht, abfd, &entry); + return frv_pic_relocs_info_find (ht, abfd, &entry, insert); } /* Obtain the address of the entry in HT associated with the SYMNDXth @@ -836,7 +845,8 @@ inline static struct frv_pic_relocs_info * frv_pic_relocs_info_for_local (struct htab *ht, bfd *abfd, long symndx, - bfd_vma addend) + bfd_vma addend, + enum insert_option insert) { struct frv_pic_relocs_info entry; @@ -844,7 +854,59 @@ frv_pic_relocs_info_for_local (struct htab *ht, entry.d.abfd = abfd; entry.addend = addend; - return frv_pic_relocs_info_find (ht, abfd, &entry); + return frv_pic_relocs_info_find (ht, abfd, &entry, insert); +} + +/* Merge fields set by check_relocs() of two entries that end up being + mapped to the same (presumably global) symbol. */ + +inline static void +frv_pic_merge_early_relocs_info (struct frv_pic_relocs_info *e2, + struct frv_pic_relocs_info const *e1) +{ + e2->got12 |= e1->got12; + e2->gotlos |= e1->gotlos; + e2->gothilo |= e1->gothilo; + e2->fd |= e1->fd; + e2->fdgot12 |= e1->fdgot12; + e2->fdgotlos |= e1->fdgotlos; + e2->fdgothilo |= e1->fdgothilo; + e2->fdgoff12 |= e1->fdgoff12; + e2->fdgofflos |= e1->fdgofflos; + e2->fdgoffhilo |= e1->fdgoffhilo; + e2->gotoff |= e1->gotoff; + e2->call |= e1->call; + e2->sym |= e1->sym; + +#if 0 + /* These are set in _frv_count_got_plt_entries() or later, and this + function is only called in _frv_resolve_final_relocs_info(), that + runs just before it, so we don't have to worry about the fields + below. */ + + e2->plt |= e1->plt; + e2->privfd |= e1->privfd; + e2->lazyplt |= e1->lazyplt; + e2->done |= e1->done; + + e2->relocs32 += e1->relocs32; + e2->relocsfd += e1->relocsfd; + e2->relocsfdv += e1->relocsfdv; + e2->fixups += e1->fixups; + e2->dynrelocs += e1->dynrelocs; + + if (abs (e1->got_entry) < abs (e2->got_entry)) + e2->got_entry = e1->got_entry; + if (abs (e1->fdgot_entry) < abs (e2->fdgot_entry)) + e2->fdgot_entry = e1->fdgot_entry; + if (abs (e1->fd_entry) < abs (e2->fd_entry)) + e2->fd_entry = e1->fd_entry; + + if (e1->plt_entry < e2->plt_entry) + e2->plt_entry = e1->plt_entry; + if (e1->lzplt_entry < e2->lzplt_entry) + e2->lzplt_entry = e1->lzplt_entry; +#endif } /* Every block of 65535 lazy PLT entries shares a single call to the @@ -859,7 +921,8 @@ frv_pic_relocs_info_for_local (struct htab *ht, inline static bfd_vma _frv_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset, - int reloc_type, long dynindx, bfd_vma addend) + int reloc_type, long dynindx, bfd_vma addend, + struct frv_pic_relocs_info *entry) { Elf_Internal_Rela outrel; bfd_vma reloc_offset; @@ -874,13 +937,17 @@ _frv_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset, sreloc->contents + reloc_offset); sreloc->reloc_count++; + BFD_ASSERT (entry->dynrelocs > 0); + entry->dynrelocs--; + return reloc_offset; } /* Add a fixup to the ROFIXUP section. */ static bfd_vma -_frv_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset) +_frv_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset, + struct frv_pic_relocs_info *entry) { bfd_vma fixup_offset; @@ -894,7 +961,13 @@ _frv_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset) bfd_put_32 (output_bfd, offset, rofixup->contents + fixup_offset); } rofixup->reloc_count++; - + + if (entry) + { + BFD_ASSERT (entry->fixups > 0); + entry->fixups--; + } + return fixup_offset; } @@ -999,13 +1072,13 @@ _frv_emit_got_relocs_plt_entries (struct frv_pic_relocs_info *entry, { if (sec) ad += sec->output_section->vma; - if (entry->symndx != -1 || - entry->d.h->root.type != bfd_link_hash_undefweak) + if (entry->symndx != -1 + || entry->d.h->root.type != bfd_link_hash_undefweak) _frv_add_rofixup (output_bfd, frv_gotfixup_section (info), frv_got_section (info)->output_section->vma + frv_got_section (info)->output_offset + frv_got_initial_offset (info) - + entry->got_entry); + + entry->got_entry, entry); } else _frv_add_dyn_reloc (output_bfd, frv_gotrel_section (info), @@ -1016,7 +1089,7 @@ _frv_emit_got_relocs_plt_entries (struct frv_pic_relocs_info *entry, + entry->got_entry) + frv_got_section (info)->output_section->vma + frv_got_section (info)->output_offset, - R_FRV_32, idx, ad); + R_FRV_32, idx, ad, entry); bfd_put_32 (output_bfd, ad, frv_got_section (info)->contents @@ -1029,65 +1102,79 @@ _frv_emit_got_relocs_plt_entries (struct frv_pic_relocs_info *entry, if (entry->fdgot_entry) { int reloc, idx; - bfd_vma ad; + bfd_vma ad = 0; - /* If the symbol is dynamic and there may be dynamic symbol - resolution because we are or are linked with a shared - library, emit a FUNCDESC relocation such that the dynamic - linker will allocate the function descriptor. */ - if (entry->symndx == -1 && ! FRV_FUNCDESC_LOCAL (info, entry->d.h)) + if (! (entry->symndx == -1 + && entry->d.h->root.type == bfd_link_hash_undefweak + && FRV_SYM_LOCAL (info, entry->d.h))) { - reloc = R_FRV_FUNCDESC; - idx = dynindx; - ad = addend; - if (ad) - return FALSE; - } - else - { - /* Otherwise, we know we have a private function descriptor, - so reference it directly. */ - if (elf_hash_table (info)->dynamic_sections_created) - BFD_ASSERT (entry->privfd); - reloc = R_FRV_32; - idx = elf_section_data (frv_got_section (info)->output_section) - ->dynindx; - ad = frv_got_section (info)->output_offset + - frv_got_initial_offset (info) + entry->fd_entry; - } - - /* If there is room for dynamic symbol resolution, emit the - dynamic relocation. However, if we're linking an executable - at a fixed location, we won't have emitted a dynamic symbol - entry for the got section, so idx will be zero, which means - we can and should compute the address of the private - descriptor ourselves. */ - if (info->executable && !info->pie - && (entry->symndx != -1 || FRV_FUNCDESC_LOCAL (info, entry->d.h))) - { - if (entry->symndx == -1 - && entry->d.h->root.type == bfd_link_hash_undefweak) - ad = 0; + /* If the symbol is dynamic and there may be dynamic symbol + resolution because we are, or are linked with, a shared + library, emit a FUNCDESC relocation such that the dynamic + linker will allocate the function descriptor. If the + symbol needs a non-local function descriptor but binds + locally (e.g., its visibility is protected, emit a + dynamic relocation decayed to section+offset. */ + if (entry->symndx == -1 && ! FRV_FUNCDESC_LOCAL (info, entry->d.h) + && FRV_SYM_LOCAL (info, entry->d.h) + && !(info->executable && !info->pie)) + { + reloc = R_FRV_FUNCDESC; + idx = elf_section_data (entry->d.h->root.u.def.section + ->output_section)->dynindx; + ad = entry->d.h->root.u.def.section->output_offset + + entry->d.h->root.u.def.value; + } + else if (entry->symndx == -1 + && ! FRV_FUNCDESC_LOCAL (info, entry->d.h)) + { + reloc = R_FRV_FUNCDESC; + idx = dynindx; + ad = addend; + if (ad) + return FALSE; + } else { + /* Otherwise, we know we have a private function descriptor, + so reference it directly. */ + if (elf_hash_table (info)->dynamic_sections_created) + BFD_ASSERT (entry->privfd); + reloc = R_FRV_32; + idx = elf_section_data (frv_got_section (info) + ->output_section)->dynindx; + ad = frv_got_section (info)->output_offset + + frv_got_initial_offset (info) + entry->fd_entry; + } + + /* If there is room for dynamic symbol resolution, emit the + dynamic relocation. However, if we're linking an + executable at a fixed location, we won't have emitted a + dynamic symbol entry for the got section, so idx will be + zero, which means we can and should compute the address + of the private descriptor ourselves. */ + if (info->executable && !info->pie + && (entry->symndx != -1 + || FRV_FUNCDESC_LOCAL (info, entry->d.h))) + { ad += frv_got_section (info)->output_section->vma; _frv_add_rofixup (output_bfd, frv_gotfixup_section (info), frv_got_section (info)->output_section->vma + frv_got_section (info)->output_offset + frv_got_initial_offset (info) - + entry->fdgot_entry); + + entry->fdgot_entry, entry); } + else + _frv_add_dyn_reloc (output_bfd, frv_gotrel_section (info), + _bfd_elf_section_offset + (output_bfd, info, + frv_got_section (info), + frv_got_initial_offset (info) + + entry->fdgot_entry) + + frv_got_section (info)->output_section->vma + + frv_got_section (info)->output_offset, + reloc, idx, ad, entry); } - else - _frv_add_dyn_reloc (output_bfd, frv_gotrel_section (info), - _bfd_elf_section_offset - (output_bfd, info, - frv_got_section (info), - frv_got_initial_offset (info) - + entry->fdgot_entry) - + frv_got_section (info)->output_section->vma - + frv_got_section (info)->output_offset, - reloc, idx, ad); bfd_put_32 (output_bfd, ad, frv_got_section (info)->contents @@ -1128,19 +1215,19 @@ _frv_emit_got_relocs_plt_entries (struct frv_pic_relocs_info *entry, if (sec) ad += sec->output_section->vma; ofst = 0; - if (entry->symndx != -1 || - entry->d.h->root.type != bfd_link_hash_undefweak) + if (entry->symndx != -1 + || entry->d.h->root.type != bfd_link_hash_undefweak) { _frv_add_rofixup (output_bfd, frv_gotfixup_section (info), frv_got_section (info)->output_section->vma + frv_got_section (info)->output_offset + frv_got_initial_offset (info) - + entry->fd_entry); + + entry->fd_entry, entry); _frv_add_rofixup (output_bfd, frv_gotfixup_section (info), frv_got_section (info)->output_section->vma + frv_got_section (info)->output_offset + frv_got_initial_offset (info) - + entry->fd_entry + 4); + + entry->fd_entry + 4, entry); } } else @@ -1156,7 +1243,7 @@ _frv_emit_got_relocs_plt_entries (struct frv_pic_relocs_info *entry, + entry->fd_entry) + frv_got_section (info)->output_section->vma + frv_got_section (info)->output_offset, - R_FRV_FUNCDESC_VALUE, idx, ad); + R_FRV_FUNCDESC_VALUE, idx, ad, entry); } /* If we've omitted the dynamic relocation, just emit the fixed @@ -1871,16 +1958,16 @@ elf32_frv_relocate_section (output_bfd, info, input_bfd, input_section, { relocation = 0; } - else if ( ! info->executable - && ! info->symbolic - && info->unresolved_syms_in_objects == RM_IGNORE + else if (info->unresolved_syms_in_objects == RM_IGNORE && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) relocation = 0; else { if (! ((*info->callbacks->undefined_symbol) (info, h->root.root.string, input_bfd, - input_section, rel->r_offset, TRUE))) + input_section, rel->r_offset, + (info->unresolved_syms_in_objects == RM_GENERATE_ERROR + || ELF_ST_VISIBILITY (h->other))))) return FALSE; relocation = 0; } @@ -1908,14 +1995,14 @@ elf32_frv_relocate_section (output_bfd, info, input_bfd, input_section, if (h != NULL) picrel = frv_pic_relocs_info_for_global (frv_relocs_info (info), input_bfd, h, - orig_addend); + orig_addend, INSERT); else /* In order to find the entry we created before, we must use the original addend, not the one that may have been modified by _bfd_elf_rela_local_sym(). */ picrel = frv_pic_relocs_info_for_local (frv_relocs_info (info), input_bfd, r_symndx, - orig_addend); + orig_addend, INSERT); if (! picrel) return FALSE; @@ -2005,88 +2092,104 @@ elf32_frv_relocate_section (output_bfd, info, input_bfd, input_section, int dynindx; bfd_vma addend = rel->r_addend; - /* If the symbol is dynamic and there may be dynamic - symbol resolution because we are or are linked with a - shared library, emit a FUNCDESC relocation such that - the dynamic linker will allocate the function - descriptor. */ - if (h && ! FRV_FUNCDESC_LOCAL (info, h)) + if (! (h && h->root.type == bfd_link_hash_undefweak + && FRV_SYM_LOCAL (info, h))) { - if (addend) + /* If the symbol is dynamic and there may be dynamic + symbol resolution because we are or are linked with a + shared library, emit a FUNCDESC relocation such that + the dynamic linker will allocate the function + descriptor. If the symbol needs a non-local function + descriptor but binds locally (e.g., its visibility is + protected, emit a dynamic relocation decayed to + section+offset. */ + if (h && ! FRV_FUNCDESC_LOCAL (info, h) + && FRV_SYM_LOCAL (info, h) + && !(info->executable && !info->pie)) { - info->callbacks->warning - (info, _("R_FRV_FUNCDESC references dynamic symbol with nonzero addend"), - name, input_bfd, input_section, rel->r_offset); - return FALSE; + dynindx = elf_section_data (h->root.u.def.section + ->output_section)->dynindx; + addend += h->root.u.def.section->output_offset + + h->root.u.def.value; + } + else if (h && ! FRV_FUNCDESC_LOCAL (info, h)) + { + if (addend) + { + info->callbacks->warning + (info, _("R_FRV_FUNCDESC references dynamic symbol with nonzero addend"), + name, input_bfd, input_section, rel->r_offset); + return FALSE; + } + dynindx = h->dynindx; + } + else + { + /* Otherwise, we know we have a private function + descriptor, so reference it directly. */ + BFD_ASSERT (picrel->privfd); + r_type = R_FRV_32; + dynindx = elf_section_data (frv_got_section (info) + ->output_section)->dynindx; + addend = frv_got_section (info)->output_offset + + frv_got_initial_offset (info) + + picrel->fd_entry; } - dynindx = h->dynindx; - } - else - { - /* Otherwise, we know we have a private function - descriptor, so reference it directly. */ - BFD_ASSERT (picrel->privfd); - r_type = R_FRV_32; - dynindx = elf_section_data (frv_got_section - (info)->output_section)->dynindx; - addend = frv_got_section (info)->output_offset - + frv_got_initial_offset (info) - + picrel->fd_entry; - } - /* If there is room for dynamic symbol resolution, emit - the dynamic relocation. However, if we're linking an - executable at a fixed location, we won't have emitted a - dynamic symbol entry for the got section, so idx will - be zero, which means we can and should compute the - address of the private descriptor ourselves. */ - if (info->executable && !info->pie - && (!h || FRV_FUNCDESC_LOCAL (info, h))) - { - addend += frv_got_section (info)->output_section->vma; - if ((bfd_get_section_flags (output_bfd, - input_section->output_section) - & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) + /* If there is room for dynamic symbol resolution, emit + the dynamic relocation. However, if we're linking an + executable at a fixed location, we won't have emitted a + dynamic symbol entry for the got section, so idx will + be zero, which means we can and should compute the + address of the private descriptor ourselves. */ + if (info->executable && !info->pie + && (!h || FRV_FUNCDESC_LOCAL (info, h))) + { + addend += frv_got_section (info)->output_section->vma; + if ((bfd_get_section_flags (output_bfd, + input_section->output_section) + & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) + { + if (_frv_osec_readonly_p (output_bfd, + input_section->output_section)) + { + info->callbacks->warning + (info, + _("cannot emit fixups in read-only section"), + name, input_bfd, input_section, rel->r_offset); + return FALSE; + } + _frv_add_rofixup (output_bfd, + frv_gotfixup_section (info), + _bfd_elf_section_offset + (output_bfd, info, + input_section, rel->r_offset) + + input_section->output_section->vma + + input_section->output_offset, + picrel); + } + } + else if ((bfd_get_section_flags (output_bfd, + input_section->output_section) + & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) { if (_frv_osec_readonly_p (output_bfd, input_section->output_section)) { info->callbacks->warning (info, - _("cannot emit fixups in read-only section"), + _("cannot emit dynamic relocations in read-only section"), name, input_bfd, input_section, rel->r_offset); return FALSE; } - if (! h || h->root.type != bfd_link_hash_undefweak) - _frv_add_rofixup (output_bfd, - frv_gotfixup_section (info), + _frv_add_dyn_reloc (output_bfd, frv_gotrel_section (info), _bfd_elf_section_offset (output_bfd, info, input_section, rel->r_offset) + input_section->output_section->vma - + input_section->output_offset); - } - } - else if ((bfd_get_section_flags (output_bfd, - input_section->output_section) - & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) - { - if (_frv_osec_readonly_p (output_bfd, - input_section->output_section)) - { - info->callbacks->warning - (info, - _("cannot emit dynamic relocations in read-only section"), - name, input_bfd, input_section, rel->r_offset); - return FALSE; + + input_section->output_offset, + r_type, dynindx, addend, picrel); } - _frv_add_dyn_reloc (output_bfd, frv_gotrel_section (info), - _bfd_elf_section_offset - (output_bfd, info, - input_section, rel->r_offset) - + input_section->output_section->vma - + input_section->output_offset, - r_type, dynindx, addend); } /* We want the addend in-place because dynamic @@ -2163,7 +2266,8 @@ elf32_frv_relocate_section (output_bfd, info, input_bfd, input_section, (output_bfd, info, input_section, rel->r_offset) + input_section->output_section->vma - + input_section->output_offset); + + input_section->output_offset, + picrel); if (r_type == R_FRV_FUNCDESC_VALUE) _frv_add_rofixup (output_bfd, @@ -2172,7 +2276,7 @@ elf32_frv_relocate_section (output_bfd, info, input_bfd, input_section, (output_bfd, info, input_section, rel->r_offset) + input_section->output_section->vma - + input_section->output_offset + 4); + + input_section->output_offset + 4, picrel); } } } @@ -2197,7 +2301,7 @@ elf32_frv_relocate_section (output_bfd, info, input_bfd, input_section, input_section, rel->r_offset) + input_section->output_section->vma + input_section->output_offset, - r_type, dynindx, addend); + r_type, dynindx, addend, picrel); } /* We want the addend in-place because dynamic relocations are REL. Setting relocation to it @@ -2480,7 +2584,7 @@ static bfd_boolean elf32_frv_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) bfd *abfd; struct bfd_link_info *info; - const Elf_Internal_Sym *sym; + Elf_Internal_Sym *sym; const char **namep ATTRIBUTE_UNUSED; flagword *flagsp ATTRIBUTE_UNUSED; asection **secp; @@ -2572,7 +2676,7 @@ _frv_create_got_section (bfd *abfd, struct bfd_link_info *info) /* Machine-specific: we want the symbol for executables as well. */ - if (! _bfd_elf_link_record_dynamic_symbol (info, h)) + if (! bfd_elf_link_record_dynamic_symbol (info, h)) return FALSE; elf_hash_table (info)->hgot = h; @@ -2620,7 +2724,7 @@ _frv_create_got_section (bfd *abfd, struct bfd_link_info *info) h->type = STT_OBJECT; /* Machine-specific: we want the symbol for executables as well. */ - if (! _bfd_elf_link_record_dynamic_symbol (info, h)) + if (! bfd_elf_link_record_dynamic_symbol (info, h)) return FALSE; return TRUE; @@ -2675,7 +2779,7 @@ elf32_frv_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) h->type = STT_OBJECT; if (! info->executable - && ! _bfd_elf_link_record_dynamic_symbol (info, h)) + && ! bfd_elf_link_record_dynamic_symbol (info, h)) return FALSE; } @@ -2777,6 +2881,7 @@ _frv_count_got_plt_entries (void **entryp, void *dinfo_) { struct frv_pic_relocs_info *entry = *entryp; struct _frv_dynamic_got_info *dinfo = dinfo_; + unsigned relocs = 0, fixups = 0; /* Allocate space for a GOT entry pointing to the symbol. */ if (entry->got12) @@ -2833,27 +2938,33 @@ _frv_count_got_plt_entries (void **entryp, void *dinfo_) dinfo->lzplt += 8; if (!dinfo->info->executable || dinfo->info->pie) - dinfo->relocs += entry->relocs32 + entry->relocsfd + entry->relocsfdv; + relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv; else { if (entry->symndx != -1 || FRV_SYM_LOCAL (dinfo->info, entry->d.h)) { if (entry->symndx != -1 - || entry->d.h->root.type != bfd_link_hash_undefweak) - dinfo->fixups += entry->relocs32 + 2 * entry->relocsfdv; + || entry->d.h->root.type != bfd_link_hash_undefweak) + fixups += entry->relocs32 + 2 * entry->relocsfdv; } else - dinfo->relocs += entry->relocs32 + entry->relocsfdv; + relocs += entry->relocs32 + entry->relocsfdv; + if (entry->symndx != -1 || FRV_FUNCDESC_LOCAL (dinfo->info, entry->d.h)) { if (entry->symndx != -1 || entry->d.h->root.type != bfd_link_hash_undefweak) - dinfo->fixups += entry->relocsfd; + fixups += entry->relocsfd; } else - dinfo->relocs += entry->relocsfd; + relocs += entry->relocsfd; } + entry->dynrelocs += relocs; + entry->fixups += fixups; + dinfo->relocs += relocs; + dinfo->fixups += fixups; + return 1; } @@ -3181,6 +3292,7 @@ _frv_resolve_final_relocs_info (void **entryp, void *p) if (entry->symndx == -1) { struct elf_link_hash_entry *h = entry->d.h; + struct frv_pic_relocs_info *oentry; while (h->root.type == bfd_link_hash_indirect || h->root.type == bfd_link_hash_warning) @@ -3189,6 +3301,17 @@ _frv_resolve_final_relocs_info (void **entryp, void *p) if (entry->d.h == h) return 1; + oentry = frv_pic_relocs_info_for_global (*htab, 0, h, entry->addend, + NO_INSERT); + + if (oentry) + { + /* Merge the two entries. */ + frv_pic_merge_early_relocs_info (oentry, entry); + htab_clear_slot (*htab, entryp); + return 1; + } + entry->d.h = h; /* If we can't find this entry with the new bfd hash, re-insert @@ -3413,20 +3536,20 @@ elf32_frv_size_dynamic_sections (bfd *output_bfd, if (elf_hash_table (info)->dynamic_sections_created) { if (frv_got_section (info)->_raw_size) - if (! bfd_elf32_add_dynamic_entry (info, DT_PLTGOT, 0)) + if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0)) return FALSE; if (frv_pltrel_section (info)->_raw_size) - if (! bfd_elf32_add_dynamic_entry (info, DT_PLTRELSZ, 0) - || ! bfd_elf32_add_dynamic_entry (info, DT_PLTREL, DT_REL) - || ! bfd_elf32_add_dynamic_entry (info, DT_JMPREL, 0)) + if (!_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0) + || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_REL) + || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0)) return FALSE; if (frv_gotrel_section (info)->_raw_size) - if (! bfd_elf32_add_dynamic_entry (info, DT_REL, 0) - || ! bfd_elf32_add_dynamic_entry (info, DT_RELSZ, 0) - || ! bfd_elf32_add_dynamic_entry (info, DT_RELENT, - sizeof (Elf32_External_Rel))) + if (!_bfd_elf_add_dynamic_entry (info, DT_REL, 0) + || !_bfd_elf_add_dynamic_entry (info, DT_RELSZ, 0) + || !_bfd_elf_add_dynamic_entry (info, DT_RELENT, + sizeof (Elf32_External_Rel))) return FALSE; } @@ -3552,13 +3675,22 @@ elf32_frv_finish_dynamic_sections (bfd *output_bfd, + hgot->root.u.def.section->output_offset; _frv_add_rofixup (output_bfd, frv_gotfixup_section (info), - got_value); + got_value, 0); } if (frv_gotfixup_section (info)->_raw_size != (frv_gotfixup_section (info)->reloc_count * 4)) { - if (!elf_hash_table (info)->dynamic_sections_created) + if (frv_gotfixup_section (info)->_raw_size + < frv_gotfixup_section (info)->reloc_count * 4) + { + info->callbacks->warning + (info, "LINKER BUG: .rofixup section size mismatch", + ".rofixup", NULL, NULL, 0); + abort (); + return FALSE; + } + else if (!elf_hash_table (info)->dynamic_sections_created) { info->callbacks->warning (info, "no dynamic sections, missing -melf32frvfd?", @@ -3672,6 +3804,57 @@ elf32_frv_finish_dynamic_symbol (bfd *output_bfd ATTRIBUTE_UNUSED, return TRUE; } +/* Decide whether to attempt to turn absptr or lsda encodings in + shared libraries into pcrel within the given input section. */ + +static bfd_boolean +frv_elf_use_relative_eh_frame (bfd *input_bfd, + struct bfd_link_info *info ATTRIBUTE_UNUSED, + asection *eh_frame_section ATTRIBUTE_UNUSED) +{ + /* We can't use PC-relative encodings in FDPIC binaries, in general. */ + if (elf_elfheader (input_bfd)->e_flags & EF_FRV_FDPIC) + return FALSE; + + return TRUE; +} + +/* Adjust the contents of an eh_frame_hdr section before they're output. */ + +static bfd_byte +frv_elf_encode_eh_address (bfd *abfd, + struct bfd_link_info *info, + asection *osec, bfd_vma offset, + asection *loc_sec, bfd_vma loc_offset, + bfd_vma *encoded) +{ + struct elf_link_hash_entry *h; + + /* Non-FDPIC binaries can use PC-relative encodings. */ + if (! (elf_elfheader (abfd)->e_flags & EF_FRV_FDPIC)) + return _bfd_elf_encode_eh_address (abfd, info, osec, offset, + loc_sec, loc_offset, encoded); + + h = elf_hash_table (info)->hgot; + BFD_ASSERT (h && h->root.type == bfd_link_hash_defined); + + if (! h || (_frv_osec_to_segment (abfd, osec) + == _frv_osec_to_segment (abfd, loc_sec->output_section))) + return _bfd_elf_encode_eh_address (abfd, info, osec, offset, + loc_sec, loc_offset, encoded); + + BFD_ASSERT (_frv_osec_to_segment (abfd, osec) + == _frv_osec_to_segment (abfd, + h->root.u.def.section->output_section)); + + *encoded = osec->vma + offset + - (h->root.u.def.value + + h->root.u.def.section->output_section->vma + + h->root.u.def.section->output_offset); + + return DW_EH_PE_datarel | DW_EH_PE_sdata4; +} + /* Look through the relocs for a section during the first phase. Besides handling virtual table relocs for gc, we have to deal with @@ -3845,18 +4028,18 @@ elf32_frv_check_relocs (abfd, info, sec, relocs) case STV_HIDDEN: break; default: - bfd_elf32_link_record_dynamic_symbol (info, h); + bfd_elf_link_record_dynamic_symbol (info, h); break; } picrel = frv_pic_relocs_info_for_global (frv_relocs_info (info), abfd, h, - rel->r_addend); + rel->r_addend, INSERT); } else picrel = frv_pic_relocs_info_for_local (frv_relocs_info (info), abfd, r_symndx, - rel->r_addend); + rel->r_addend, INSERT); if (! picrel) return FALSE; break; @@ -3924,14 +4107,14 @@ elf32_frv_check_relocs (abfd, info, sec, relocs) /* This relocation describes the C++ object vtable hierarchy. Reconstruct it for later use during GC. */ case R_FRV_GNU_VTINHERIT: - if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) + if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) return FALSE; break; /* This relocation describes which C++ vtable entries are actually used. Record for later use during GC. */ case R_FRV_GNU_VTENTRY: - if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend)) + if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) return FALSE; break; } @@ -3952,6 +4135,8 @@ elf32_frv_machine (abfd) default: break; case EF_FRV_CPU_FR550: return bfd_mach_fr550; case EF_FRV_CPU_FR500: return bfd_mach_fr500; + case EF_FRV_CPU_FR450: return bfd_mach_fr450; + case EF_FRV_CPU_FR405: return bfd_mach_fr400; case EF_FRV_CPU_FR400: return bfd_mach_fr400; case EF_FRV_CPU_FR300: return bfd_mach_fr300; case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple; @@ -4002,6 +4187,33 @@ frv_elf_copy_private_bfd_data (ibfd, obfd) return TRUE; } +/* Return true if the architecture described by elf header flag + EXTENSION is an extension of the architecture described by BASE. */ + +static bfd_boolean +frv_elf_arch_extension_p (flagword base, flagword extension) +{ + if (base == extension) + return TRUE; + + /* CPU_GENERIC code can be merged with code for a specific + architecture, in which case the result is marked as being + for the specific architecture. Everything is therefore + an extension of CPU_GENERIC. */ + if (base == EF_FRV_CPU_GENERIC) + return TRUE; + + if (extension == EF_FRV_CPU_FR450) + if (base == EF_FRV_CPU_FR400 || base == EF_FRV_CPU_FR405) + return TRUE; + + if (extension == EF_FRV_CPU_FR405) + if (base == EF_FRV_CPU_FR400) + return TRUE; + + return FALSE; +} + /* Merge backend specific data from an object file to the output object file when linking. */ @@ -4186,13 +4398,10 @@ frv_elf_merge_private_bfd_data (ibfd, obfd) the generic cpu). */ new_partial = (new_flags & EF_FRV_CPU_MASK); old_partial = (old_flags & EF_FRV_CPU_MASK); - if (new_partial == old_partial) - ; - - else if (new_partial == EF_FRV_CPU_GENERIC) + if (frv_elf_arch_extension_p (new_partial, old_partial)) ; - else if (old_partial == EF_FRV_CPU_GENERIC) + else if (frv_elf_arch_extension_p (old_partial, new_partial)) old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial; else @@ -4204,6 +4413,8 @@ frv_elf_merge_private_bfd_data (ibfd, obfd) case EF_FRV_CPU_SIMPLE: strcat (new_opt, " -mcpu=simple"); break; case EF_FRV_CPU_FR550: strcat (new_opt, " -mcpu=fr550"); break; case EF_FRV_CPU_FR500: strcat (new_opt, " -mcpu=fr500"); break; + case EF_FRV_CPU_FR450: strcat (new_opt, " -mcpu=fr450"); break; + case EF_FRV_CPU_FR405: strcat (new_opt, " -mcpu=fr405"); break; case EF_FRV_CPU_FR400: strcat (new_opt, " -mcpu=fr400"); break; case EF_FRV_CPU_FR300: strcat (new_opt, " -mcpu=fr300"); break; case EF_FRV_CPU_TOMCAT: strcat (new_opt, " -mcpu=tomcat"); break; @@ -4216,6 +4427,8 @@ frv_elf_merge_private_bfd_data (ibfd, obfd) case EF_FRV_CPU_SIMPLE: strcat (old_opt, " -mcpu=simple"); break; case EF_FRV_CPU_FR550: strcat (old_opt, " -mcpu=fr550"); break; case EF_FRV_CPU_FR500: strcat (old_opt, " -mcpu=fr500"); break; + case EF_FRV_CPU_FR450: strcat (old_opt, " -mcpu=fr450"); break; + case EF_FRV_CPU_FR405: strcat (old_opt, " -mcpu=fr405"); break; case EF_FRV_CPU_FR400: strcat (old_opt, " -mcpu=fr400"); break; case EF_FRV_CPU_FR300: strcat (old_opt, " -mcpu=fr300"); break; case EF_FRV_CPU_TOMCAT: strcat (old_opt, " -mcpu=tomcat"); break; @@ -4283,6 +4496,8 @@ frv_elf_print_private_bfd_data (abfd, ptr) case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple"); break; case EF_FRV_CPU_FR550: fprintf (file, " -mcpu=fr550"); break; case EF_FRV_CPU_FR500: fprintf (file, " -mcpu=fr500"); break; + case EF_FRV_CPU_FR450: fprintf (file, " -mcpu=fr450"); break; + case EF_FRV_CPU_FR405: fprintf (file, " -mcpu=fr405"); break; case EF_FRV_CPU_FR400: fprintf (file, " -mcpu=fr400"); break; case EF_FRV_CPU_FR300: fprintf (file, " -mcpu=fr300"); break; case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat"); break; @@ -4391,6 +4606,12 @@ frv_elf_print_private_bfd_data (abfd, ptr) #define elf_backend_want_plt_sym 0 #define elf_backend_plt_header_size 0 +#define elf_backend_can_make_relative_eh_frame \ + frv_elf_use_relative_eh_frame +#define elf_backend_can_make_lsda_relative_eh_frame \ + frv_elf_use_relative_eh_frame +#define elf_backend_encode_eh_address frv_elf_encode_eh_address + #define elf_backend_may_use_rel_p 1 #define elf_backend_may_use_rela_p 1 /* We use REL for dynamic relocations only. */ |