diff options
Diffstat (limited to 'binutils-2.24/bfd/elf32-iq2000.c')
| -rw-r--r-- | binutils-2.24/bfd/elf32-iq2000.c | 938 |
1 files changed, 0 insertions, 938 deletions
diff --git a/binutils-2.24/bfd/elf32-iq2000.c b/binutils-2.24/bfd/elf32-iq2000.c deleted file mode 100644 index 3a90a996..00000000 --- a/binutils-2.24/bfd/elf32-iq2000.c +++ /dev/null @@ -1,938 +0,0 @@ -/* IQ2000-specific support for 32-bit ELF. - Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2010, 2012 - 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; - - /* 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)) - { - /* 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 && discarded_section (sec)) - RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, - rel, 1, relend, howto, 0, contents); - - 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" |