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[/] [openrisc/] [trunk/] [gnu-old/] [gdb-7.1/] [bfd/] [elf32-iq2000.c] - Rev 816
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/* IQ2000-specific support for 32-bit ELF. Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. This file is part of BFD, the Binary File Descriptor library. This program 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 3 of the License, or (at your option) any later version. This program 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 this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ #include "sysdep.h" #include "bfd.h" #include "libbfd.h" #include "elf-bfd.h" #include "elf/iq2000.h" /* Forward declarations. */ static bfd_reloc_status_type iq2000_elf_howto_hi16_reloc (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); static reloc_howto_type iq2000_elf_howto_table [] = { /* This reloc does nothing. */ HOWTO (R_IQ2000_NONE, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_IQ2000_NONE", /* name */ FALSE, /* partial_inplace */ 0, /* src_mask */ 0, /* dst_mask */ FALSE), /* pcrel_offset */ /* A 16 bit absolute relocation. */ HOWTO (R_IQ2000_16, /* type */ 0, /* rightshift */ 1, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_IQ2000_16", /* name */ FALSE, /* partial_inplace */ 0x0000, /* src_mask */ 0xffff, /* dst_mask */ FALSE), /* pcrel_offset */ /* A 32 bit absolute relocation. */ HOWTO (R_IQ2000_32, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 31, /* bitsize */ FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_IQ2000_32", /* name */ FALSE, /* partial_inplace */ 0x00000000, /* src_mask */ 0x7fffffff, /* dst_mask */ FALSE), /* pcrel_offset */ /* 26 bit branch address. */ HOWTO (R_IQ2000_26, /* type */ 2, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 26, /* bitsize */ FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ /* This needs complex overflow detection, because the upper four bits must match the PC. */ bfd_elf_generic_reloc, /* special_function */ "R_IQ2000_26", /* name */ FALSE, /* partial_inplace */ 0x00000000, /* src_mask */ 0x03ffffff, /* dst_mask */ FALSE), /* pcrel_offset */ /* 16 bit PC relative reference. */ HOWTO (R_IQ2000_PC16, /* type */ 2, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ TRUE, /* pc_relative */ 0, /* bitpos */ complain_overflow_signed, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_IQ2000_PC16", /* name */ FALSE, /* partial_inplace */ 0x0000, /* src_mask */ 0xffff, /* dst_mask */ TRUE), /* pcrel_offset */ /* high 16 bits of symbol value. */ HOWTO (R_IQ2000_HI16, /* type */ 16, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 15, /* bitsize */ FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ iq2000_elf_howto_hi16_reloc, /* special_function */ "R_IQ2000_HI16", /* name */ FALSE, /* partial_inplace */ 0x0000, /* src_mask */ 0x7fff, /* dst_mask */ FALSE), /* pcrel_offset */ /* Low 16 bits of symbol value. */ HOWTO (R_IQ2000_LO16, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_IQ2000_LO16", /* name */ FALSE, /* partial_inplace */ 0x0000, /* src_mask */ 0xffff, /* dst_mask */ FALSE), /* pcrel_offset */ /* 16-bit jump offset. */ HOWTO (R_IQ2000_OFFSET_16, /* type */ 2, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_IQ2000_OFFSET_16", /* name */ FALSE, /* partial_inplace */ 0x0000, /* src_mask */ 0xffff, /* dst_mask */ FALSE), /* pcrel_offset */ /* 21-bit jump offset. */ HOWTO (R_IQ2000_OFFSET_21, /* type */ 2, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 21, /* bitsize */ FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_IQ2000_OFFSET_21", /* name */ FALSE, /* partial_inplace */ 0x000000, /* src_mask */ 0x1fffff, /* dst_mask */ FALSE), /* pcrel_offset */ /* unsigned high 16 bits of value. */ HOWTO (R_IQ2000_OFFSET_21, /* type */ 16, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_IQ2000_UHI16", /* name */ FALSE, /* partial_inplace */ 0x0000, /* src_mask */ 0x7fff, /* dst_mask */ FALSE), /* pcrel_offset */ /* A 32 bit absolute debug relocation. */ HOWTO (R_IQ2000_32_DEBUG, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ bfd_elf_generic_reloc, /* special_function */ "R_IQ2000_32", /* name */ FALSE, /* partial_inplace */ 0x00000000, /* src_mask */ 0xffffffff, /* dst_mask */ FALSE), /* pcrel_offset */ }; /* GNU extension to record C++ vtable hierarchy. */ static reloc_howto_type iq2000_elf_vtinherit_howto = HOWTO (R_IQ2000_GNU_VTINHERIT, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 0, /* bitsize */ FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ NULL, /* special_function */ "R_IQ2000_GNU_VTINHERIT", /* name */ FALSE, /* partial_inplace */ 0, /* src_mask */ 0, /* dst_mask */ FALSE); /* pcrel_offset */ /* GNU extension to record C++ vtable member usage. */ static reloc_howto_type iq2000_elf_vtentry_howto = HOWTO (R_IQ2000_GNU_VTENTRY, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 0, /* bitsize */ FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ NULL, /* special_function */ "R_IQ2000_GNU_VTENTRY", /* name */ FALSE, /* partial_inplace */ 0, /* src_mask */ 0, /* dst_mask */ FALSE); /* pcrel_offset */ static bfd_reloc_status_type iq2000_elf_howto_hi16_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry, asymbol *symbol, void * data, asection *input_section, bfd *output_bfd, char **error_message ATTRIBUTE_UNUSED) { bfd_reloc_status_type ret; bfd_vma relocation; /* If we're relocating and this an external symbol, we don't want to change anything. */ if (output_bfd != (bfd *) NULL && (symbol->flags & BSF_SECTION_SYM) == 0 && reloc_entry->addend == 0) { reloc_entry->address += input_section->output_offset; return bfd_reloc_ok; } if (bfd_is_com_section (symbol->section)) relocation = 0; else relocation = symbol->value; relocation += symbol->section->output_section->vma; relocation += symbol->section->output_offset; relocation += reloc_entry->addend; /* If %lo will have sign-extension, compensate by add 0x10000 to hi portion. */ if (relocation & 0x8000) reloc_entry->addend += 0x10000; /* Now do the reloc in the usual way. */ ret = bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, input_section, output_bfd, error_message); /* Put it back the way it was. */ if (relocation & 0x8000) reloc_entry->addend -= 0x10000; return ret; } static bfd_reloc_status_type iq2000_elf_relocate_hi16 (bfd *input_bfd, Elf_Internal_Rela *relhi, bfd_byte *contents, bfd_vma value) { bfd_vma insn; insn = bfd_get_32 (input_bfd, contents + relhi->r_offset); value += relhi->r_addend; value &= 0x7fffffff; /* Mask off top-bit which is Harvard mask bit. */ /* If top-bit of %lo value is on, this means that %lo will sign-propagate and so we compensate by adding 1 to %hi value. */ if (value & 0x8000) value += 0x10000; value >>= 16; insn = ((insn & ~0xFFFF) | value); bfd_put_32 (input_bfd, insn, contents + relhi->r_offset); return bfd_reloc_ok; } static bfd_reloc_status_type iq2000_elf_relocate_offset16 (bfd *input_bfd, Elf_Internal_Rela *rel, bfd_byte *contents, bfd_vma value, bfd_vma location) { bfd_vma insn; bfd_vma jtarget; insn = bfd_get_32 (input_bfd, contents + rel->r_offset); value += rel->r_addend; if (value & 3) return bfd_reloc_dangerous; jtarget = (value & 0x3fffc) | (location & 0xf0000000L); if (jtarget != value) return bfd_reloc_overflow; insn = (insn & ~0xFFFF) | ((value >> 2) & 0xFFFF); bfd_put_32 (input_bfd, insn, contents + rel->r_offset); return bfd_reloc_ok; } /* Map BFD reloc types to IQ2000 ELF reloc types. */ static reloc_howto_type * iq2000_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, bfd_reloc_code_real_type code) { /* Note that the iq2000_elf_howto_table is indxed by the R_ constants. Thus, the order that the howto records appear in the table *must* match the order of the relocation types defined in include/elf/iq2000.h. */ switch (code) { case BFD_RELOC_NONE: return &iq2000_elf_howto_table[ (int) R_IQ2000_NONE]; case BFD_RELOC_16: return &iq2000_elf_howto_table[ (int) R_IQ2000_16]; case BFD_RELOC_32: return &iq2000_elf_howto_table[ (int) R_IQ2000_32]; case BFD_RELOC_MIPS_JMP: return &iq2000_elf_howto_table[ (int) R_IQ2000_26]; case BFD_RELOC_IQ2000_OFFSET_16: return &iq2000_elf_howto_table[ (int) R_IQ2000_OFFSET_16]; case BFD_RELOC_IQ2000_OFFSET_21: return &iq2000_elf_howto_table[ (int) R_IQ2000_OFFSET_21]; case BFD_RELOC_16_PCREL_S2: return &iq2000_elf_howto_table[ (int) R_IQ2000_PC16]; case BFD_RELOC_HI16: return &iq2000_elf_howto_table[ (int) R_IQ2000_HI16]; case BFD_RELOC_IQ2000_UHI16: return &iq2000_elf_howto_table[ (int) R_IQ2000_UHI16]; case BFD_RELOC_LO16: return &iq2000_elf_howto_table[ (int) R_IQ2000_LO16]; case BFD_RELOC_VTABLE_INHERIT: return &iq2000_elf_vtinherit_howto; case BFD_RELOC_VTABLE_ENTRY: return &iq2000_elf_vtentry_howto; default: /* Pacify gcc -Wall. */ return NULL; } return NULL; } static reloc_howto_type * iq2000_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name) { unsigned int i; for (i = 0; i < (sizeof (iq2000_elf_howto_table) / sizeof (iq2000_elf_howto_table[0])); i++) if (iq2000_elf_howto_table[i].name != NULL && strcasecmp (iq2000_elf_howto_table[i].name, r_name) == 0) return &iq2000_elf_howto_table[i]; if (strcasecmp (iq2000_elf_vtinherit_howto.name, r_name) == 0) return &iq2000_elf_vtinherit_howto; if (strcasecmp (iq2000_elf_vtentry_howto.name, r_name) == 0) return &iq2000_elf_vtentry_howto; return NULL; } /* Perform a single relocation. By default we use the standard BFD routines. */ static bfd_reloc_status_type iq2000_final_link_relocate (reloc_howto_type * howto, bfd * input_bfd, asection * input_section, bfd_byte * contents, Elf_Internal_Rela * rel, bfd_vma relocation) { return _bfd_final_link_relocate (howto, input_bfd, input_section, contents, rel->r_offset, relocation, rel->r_addend); } /* Set the howto pointer for a IQ2000 ELF reloc. */ static void iq2000_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED, arelent * cache_ptr, Elf_Internal_Rela * dst) { unsigned int r_type; r_type = ELF32_R_TYPE (dst->r_info); switch (r_type) { case R_IQ2000_GNU_VTINHERIT: cache_ptr->howto = & iq2000_elf_vtinherit_howto; break; case R_IQ2000_GNU_VTENTRY: cache_ptr->howto = & iq2000_elf_vtentry_howto; break; default: cache_ptr->howto = & iq2000_elf_howto_table [r_type]; break; } } /* Look through the relocs for a section during the first phase. Since we don't do .gots or .plts, we just need to consider the virtual table relocs for gc. */ static bfd_boolean iq2000_elf_check_relocs (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; const Elf_Internal_Rela *rel_end; bfd_boolean changed = FALSE; if (info->relocatable) return TRUE; symtab_hdr = &elf_tdata (abfd)->symtab_hdr; sym_hashes = elf_sym_hashes (abfd); rel_end = relocs + sec->reloc_count; for (rel = relocs; rel < rel_end; rel++) { struct elf_link_hash_entry *h; unsigned long r_symndx; r_symndx = ELF32_R_SYM (rel->r_info); if (r_symndx < symtab_hdr->sh_info) h = NULL; else { 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)) { /* This relocation describes the C++ object vtable hierarchy. Reconstruct it for later use during GC. */ case R_IQ2000_GNU_VTINHERIT: 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_IQ2000_GNU_VTENTRY: BFD_ASSERT (h != NULL); if (h != NULL && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) return FALSE; break; case R_IQ2000_32: /* For debug section, change to special harvard-aware relocations. */ if (CONST_STRNEQ (sec->name, ".debug") || CONST_STRNEQ (sec->name, ".stab") || CONST_STRNEQ (sec->name, ".eh_frame")) { ((Elf_Internal_Rela *) rel)->r_info = ELF32_R_INFO (ELF32_R_SYM (rel->r_info), R_IQ2000_32_DEBUG); changed = TRUE; } break; } } if (changed) /* Note that we've changed relocs, otherwise if !info->keep_memory we'll free the relocs and lose our changes. */ elf_section_data (sec)->relocs = (Elf_Internal_Rela *) relocs; return TRUE; } /* Relocate a IQ2000 ELF section. There is some attempt to make this function usable for many architectures, both USE_REL and USE_RELA ['twould be nice if such a critter existed], if only to serve as a learning tool. The RELOCATE_SECTION function is called by the new ELF backend linker to handle the relocations for a section. The relocs are always passed as Rela structures; if the section actually uses Rel structures, the r_addend field will always be zero. This function is responsible for adjusting the section contents as necessary, and (if using Rela relocs and generating a relocatable output file) adjusting the reloc addend as necessary. This function does not have to worry about setting the reloc address or the reloc symbol index. LOCAL_SYMS is a pointer to the swapped in local symbols. LOCAL_SECTIONS is an array giving the section in the input file corresponding to the st_shndx field of each local symbol. The global hash table entry for the global symbols can be found via elf_sym_hashes (input_bfd). When generating relocatable output, this function must handle STB_LOCAL/STT_SECTION symbols specially. The output symbol is going to be the section symbol corresponding to the output section, which means that the addend must be adjusted accordingly. */ static bfd_boolean iq2000_elf_relocate_section (bfd * output_bfd ATTRIBUTE_UNUSED, struct bfd_link_info * info, bfd * input_bfd, asection * input_section, bfd_byte * contents, Elf_Internal_Rela * relocs, Elf_Internal_Sym * local_syms, asection ** local_sections) { Elf_Internal_Shdr * symtab_hdr; struct elf_link_hash_entry ** sym_hashes; Elf_Internal_Rela * rel; Elf_Internal_Rela * relend; symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; sym_hashes = elf_sym_hashes (input_bfd); relend = relocs + input_section->reloc_count; for (rel = relocs; rel < relend; rel ++) { reloc_howto_type * howto; unsigned long r_symndx; Elf_Internal_Sym * sym; asection * sec; struct elf_link_hash_entry * h; bfd_vma relocation; bfd_reloc_status_type r; const char * name = NULL; int r_type; r_type = ELF32_R_TYPE (rel->r_info); if ( r_type == R_IQ2000_GNU_VTINHERIT || r_type == R_IQ2000_GNU_VTENTRY) continue; r_symndx = ELF32_R_SYM (rel->r_info); howto = iq2000_elf_howto_table + ELF32_R_TYPE (rel->r_info); h = NULL; sym = NULL; sec = NULL; if (r_symndx < symtab_hdr->sh_info) { asection *osec; sym = local_syms + r_symndx; osec = sec = local_sections [r_symndx]; if ((sec->flags & SEC_MERGE) && ELF_ST_TYPE (sym->st_info) == STT_SECTION) /* This relocation is relative to a section symbol that is going to be merged. Change it so that it is relative to the merged section symbol. */ rel->r_addend = _bfd_elf_rel_local_sym (output_bfd, sym, &sec, rel->r_addend); relocation = (sec->output_section->vma + sec->output_offset + sym->st_value); name = bfd_elf_string_from_elf_section (input_bfd, symtab_hdr->sh_link, sym->st_name); name = (name == NULL) ? bfd_section_name (input_bfd, osec) : name; } else { bfd_boolean unresolved_reloc; bfd_boolean warned; RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, r_symndx, symtab_hdr, sym_hashes, h, sec, relocation, unresolved_reloc, warned); name = h->root.root.string; } if (sec != NULL && elf_discarded_section (sec)) { /* For relocs against symbols from removed linkonce sections, or sections discarded by a linker script, we just want the section contents zeroed. Avoid any special processing. */ _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset); rel->r_info = 0; rel->r_addend = 0; continue; } if (info->relocatable) continue; switch (r_type) { case R_IQ2000_HI16: r = iq2000_elf_relocate_hi16 (input_bfd, rel, contents, relocation); break; case R_IQ2000_OFFSET_16: r = iq2000_elf_relocate_offset16 (input_bfd, rel, contents, relocation, input_section->output_section->vma + input_section->output_offset + rel->r_offset); break; case R_IQ2000_PC16: rel->r_addend -= 4; /* Fall through. */ default: r = iq2000_final_link_relocate (howto, input_bfd, input_section, contents, rel, relocation); break; } if (r != bfd_reloc_ok) { const char * msg = (const char *) NULL; switch (r) { case bfd_reloc_overflow: r = info->callbacks->reloc_overflow (info, (h ? &h->root : NULL), name, howto->name, (bfd_vma) 0, input_bfd, input_section, rel->r_offset); break; case bfd_reloc_undefined: r = info->callbacks->undefined_symbol (info, name, input_bfd, input_section, rel->r_offset, TRUE); break; case bfd_reloc_outofrange: msg = _("internal error: out of range error"); break; case bfd_reloc_notsupported: msg = _("internal error: unsupported relocation error"); break; case bfd_reloc_dangerous: msg = _("internal error: dangerous relocation"); break; default: msg = _("internal error: unknown error"); break; } if (msg) r = info->callbacks->warning (info, msg, name, input_bfd, input_section, rel->r_offset); if (! r) return FALSE; } } return TRUE; } /* Return the section that should be marked against GC for a given relocation. */ static asection * iq2000_elf_gc_mark_hook (asection *sec, struct bfd_link_info *info, Elf_Internal_Rela *rel, struct elf_link_hash_entry *h, Elf_Internal_Sym *sym) { if (h != NULL) switch (ELF32_R_TYPE (rel->r_info)) { case R_IQ2000_GNU_VTINHERIT: case R_IQ2000_GNU_VTENTRY: return NULL; } return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); } /* Return the MACH for an e_flags value. */ static int elf32_iq2000_machine (bfd *abfd) { switch (elf_elfheader (abfd)->e_flags & EF_IQ2000_CPU_MASK) { case EF_IQ2000_CPU_IQ10: return bfd_mach_iq10; case EF_IQ2000_CPU_IQ2000: default: return bfd_mach_iq2000; } } /* Function to set the ELF flag bits. */ static bfd_boolean iq2000_elf_set_private_flags (bfd *abfd, flagword flags) { elf_elfheader (abfd)->e_flags = flags; elf_flags_init (abfd) = TRUE; return TRUE; } /* Copy backend specific data from one object module to another. */ static bfd_boolean iq2000_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) { if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour || bfd_get_flavour (obfd) != bfd_target_elf_flavour) return TRUE; BFD_ASSERT (!elf_flags_init (obfd) || elf_elfheader (obfd)->e_flags == elf_elfheader (ibfd)->e_flags); elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; elf_flags_init (obfd) = TRUE; /* Copy object attributes. */ _bfd_elf_copy_obj_attributes (ibfd, obfd); return TRUE; } /* Merge backend specific data from an object file to the output object file when linking. */ static bfd_boolean iq2000_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) { flagword old_flags, old_partial; flagword new_flags, new_partial; bfd_boolean error = FALSE; char new_opt[80]; char old_opt[80]; new_opt[0] = old_opt[0] = '\0'; new_flags = elf_elfheader (ibfd)->e_flags; old_flags = elf_elfheader (obfd)->e_flags; if (!elf_flags_init (obfd)) { /* First call, no flags set. */ elf_flags_init (obfd) = TRUE; elf_elfheader (obfd)->e_flags = new_flags; } else if (new_flags != old_flags) { /* Warn if different cpu is used, but allow a specific cpu to override the generic cpu. */ new_partial = (new_flags & EF_IQ2000_CPU_MASK); old_partial = (old_flags & EF_IQ2000_CPU_MASK); if (new_partial != old_partial) { switch (new_partial) { case EF_IQ2000_CPU_IQ10: strcat (new_opt, " -m10"); break; default: case EF_IQ2000_CPU_IQ2000: strcat (new_opt, " -m2000"); break; } switch (old_partial) { case EF_IQ2000_CPU_IQ10: strcat (old_opt, " -m10"); break; default: case EF_IQ2000_CPU_IQ2000: strcat (old_opt, " -m2000"); break; } } /* Print out any mismatches from above. */ if (new_opt[0]) { error = TRUE; _bfd_error_handler (_("%s: compiled with %s and linked with modules compiled with %s"), bfd_get_filename (ibfd), new_opt, old_opt); } new_flags &= ~ EF_IQ2000_ALL_FLAGS; old_flags &= ~ EF_IQ2000_ALL_FLAGS; /* Warn about any other mismatches. */ if (new_flags != old_flags) { error = TRUE; _bfd_error_handler (_("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)"), bfd_get_filename (ibfd), (long)new_flags, (long)old_flags); } } if (error) bfd_set_error (bfd_error_bad_value); return !error; } static bfd_boolean iq2000_elf_print_private_bfd_data (bfd *abfd, void * ptr) { FILE *file = (FILE *) ptr; flagword flags; BFD_ASSERT (abfd != NULL && ptr != NULL); /* Print normal ELF private data. */ _bfd_elf_print_private_bfd_data (abfd, ptr); flags = elf_elfheader (abfd)->e_flags; fprintf (file, _("private flags = 0x%lx:"), (unsigned long) flags); switch (flags & EF_IQ2000_CPU_MASK) { case EF_IQ2000_CPU_IQ10: fprintf (file, " -m10"); break; case EF_IQ2000_CPU_IQ2000: fprintf (file, " -m2000"); break; default: break; } fputc ('\n', file); return TRUE; } static bfd_boolean iq2000_elf_object_p (bfd *abfd) { bfd_default_set_arch_mach (abfd, bfd_arch_iq2000, elf32_iq2000_machine (abfd)); return TRUE; } #define ELF_ARCH bfd_arch_iq2000 #define ELF_MACHINE_CODE EM_IQ2000 #define ELF_MAXPAGESIZE 0x1000 #define TARGET_BIG_SYM bfd_elf32_iq2000_vec #define TARGET_BIG_NAME "elf32-iq2000" #define elf_info_to_howto_rel NULL #define elf_info_to_howto iq2000_info_to_howto_rela #define elf_backend_relocate_section iq2000_elf_relocate_section #define elf_backend_gc_mark_hook iq2000_elf_gc_mark_hook #define elf_backend_check_relocs iq2000_elf_check_relocs #define elf_backend_object_p iq2000_elf_object_p #define elf_backend_rela_normal 1 #define elf_backend_can_gc_sections 1 #define bfd_elf32_bfd_reloc_type_lookup iq2000_reloc_type_lookup #define bfd_elf32_bfd_reloc_name_lookup iq2000_reloc_name_lookup #define bfd_elf32_bfd_set_private_flags iq2000_elf_set_private_flags #define bfd_elf32_bfd_copy_private_bfd_data iq2000_elf_copy_private_bfd_data #define bfd_elf32_bfd_merge_private_bfd_data iq2000_elf_merge_private_bfd_data #define bfd_elf32_bfd_print_private_bfd_data iq2000_elf_print_private_bfd_data #include "elf32-target.h"
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