X-Git-Url: https://oss.titaniummirror.com/gitweb?p=msp430-binutils.git;a=blobdiff_plain;f=bfd%2Felf32-mips.c;fp=bfd%2Felf32-mips.c;h=c987ff9b24942c8e08378ca187f54dcbb70f7fae;hp=81fb8c2046c11f0d0b519b4621d7f66fb872f7fd;hb=88750007d7869f178f0ba528f41efd3b74c424cf;hpb=6df9443a374e2b81278c61b8afc0a1eef7db280b diff --git a/bfd/elf32-mips.c b/bfd/elf32-mips.c index 81fb8c2..c987ff9 100644 --- a/bfd/elf32-mips.c +++ b/bfd/elf32-mips.c @@ -1,6 +1,6 @@ /* MIPS-specific support for 32-bit ELF Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, - 2003, 2004, 2005, 2007 Free Software Foundation, Inc. + 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. Most of the information added by Ian Lance Taylor, Cygnus Support, . @@ -771,11 +771,35 @@ static reloc_howto_type elf_mips16_howto_table_rel[] = 0x0000ffff, /* dst_mask */ FALSE), /* pcrel_offset */ - /* A placeholder for MIPS16 reference to global offset table. */ - EMPTY_HOWTO (R_MIPS16_GOT16), + /* A MIPS16 reference to the global offset table. */ + HOWTO (R_MIPS16_GOT16, /* 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_mips_elf_got16_reloc, /* special_function */ + "R_MIPS16_GOT16", /* name */ + TRUE, /* partial_inplace */ + 0x0000ffff, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ - /* A placeholder for MIPS16 16 bit call through global offset table. */ - EMPTY_HOWTO (R_MIPS16_CALL16), + /* A MIPS16 call through the global offset table. */ + HOWTO (R_MIPS16_CALL16, /* 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_mips_elf_generic_reloc, /* special_function */ + "R_MIPS16_CALL16", /* name */ + TRUE, /* partial_inplace */ + 0x0000ffff, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ /* MIPS16 high 16 bits of symbol value. */ HOWTO (R_MIPS16_HI16, /* type */ @@ -875,6 +899,38 @@ static reloc_howto_type elf_mips_gnu_vtentry_howto = 0, /* dst_mask */ FALSE); /* pcrel_offset */ +/* Originally a VxWorks extension, but now used for other systems too. */ +static reloc_howto_type elf_mips_copy_howto = + HOWTO (R_MIPS_COPY, /* type */ + 0, /* rightshift */ + 0, /* this one is variable size */ + 0, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_MIPS_COPY", /* name */ + FALSE, /* partial_inplace */ + 0x0, /* src_mask */ + 0x0, /* dst_mask */ + FALSE); /* pcrel_offset */ + +/* Originally a VxWorks extension, but now used for other systems too. */ +static reloc_howto_type elf_mips_jump_slot_howto = + HOWTO (R_MIPS_JUMP_SLOT, /* 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_MIPS_JUMP_SLOT", /* name */ + FALSE, /* partial_inplace */ + 0x0, /* src_mask */ + 0x0, /* dst_mask */ + FALSE); /* pcrel_offset */ + /* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a dangerous relocation. */ @@ -949,7 +1005,7 @@ mips_elf_final_gp (bfd *output_bfd, asymbol *symbol, bfd_boolean relocatable, if (relocatable) { /* Make up a value. */ - *pgp = symbol->section->output_section->vma + 0x4000; + *pgp = symbol->section->output_section->vma /*+ 0x4000*/; _bfd_set_gp_value (output_bfd, *pgp); } else if (!mips_elf_assign_gp (output_bfd, pgp)) @@ -1205,6 +1261,7 @@ static const struct elf_reloc_map mips_reloc_map[] = { BFD_RELOC_MIPS_GOT_PAGE, R_MIPS_GOT_PAGE }, { BFD_RELOC_MIPS_GOT_OFST, R_MIPS_GOT_OFST }, { BFD_RELOC_MIPS_GOT_DISP, R_MIPS_GOT_DISP }, + { BFD_RELOC_MIPS_JALR, R_MIPS_JALR }, { BFD_RELOC_MIPS_TLS_DTPMOD32, R_MIPS_TLS_DTPMOD32 }, { BFD_RELOC_MIPS_TLS_DTPREL32, R_MIPS_TLS_DTPREL32 }, { BFD_RELOC_MIPS_TLS_DTPMOD64, R_MIPS_TLS_DTPMOD64 }, @@ -1224,6 +1281,8 @@ static const struct elf_reloc_map mips16_reloc_map[] = { { BFD_RELOC_MIPS16_JMP, R_MIPS16_26 - R_MIPS16_min }, { BFD_RELOC_MIPS16_GPREL, R_MIPS16_GPREL - R_MIPS16_min }, + { BFD_RELOC_MIPS16_GOT16, R_MIPS16_GOT16 - R_MIPS16_min }, + { BFD_RELOC_MIPS16_CALL16, R_MIPS16_CALL16 - R_MIPS16_min }, { BFD_RELOC_MIPS16_HI16_S, R_MIPS16_HI16 - R_MIPS16_min }, { BFD_RELOC_MIPS16_LO16, R_MIPS16_LO16 - R_MIPS16_min }, }; @@ -1273,6 +1332,10 @@ bfd_elf32_bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code) return &elf_mips_gnu_vtentry_howto; case BFD_RELOC_32_PCREL: return &elf_mips_gnu_pcrel32; + case BFD_RELOC_MIPS_COPY: + return &elf_mips_copy_howto; + case BFD_RELOC_MIPS_JUMP_SLOT: + return &elf_mips_jump_slot_howto; } } @@ -1306,6 +1369,10 @@ bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, return &elf_mips_gnu_vtinherit_howto; if (strcasecmp (elf_mips_gnu_vtentry_howto.name, r_name) == 0) return &elf_mips_gnu_vtentry_howto; + if (strcasecmp (elf_mips_copy_howto.name, r_name) == 0) + return &elf_mips_copy_howto; + if (strcasecmp (elf_mips_jump_slot_howto.name, r_name) == 0) + return &elf_mips_jump_slot_howto; return NULL; } @@ -1326,6 +1393,10 @@ mips_elf32_rtype_to_howto (unsigned int r_type, return &elf_mips_gnu_rel16_s2; case R_MIPS_PC32: return &elf_mips_gnu_pcrel32; + case R_MIPS_COPY: + return &elf_mips_copy_howto; + case R_MIPS_JUMP_SLOT: + return &elf_mips_jump_slot_howto; default: if (r_type >= R_MIPS16_min && r_type < R_MIPS16_max) return &elf_mips16_howto_table_rel[r_type - R_MIPS16_min]; @@ -1379,7 +1450,7 @@ mips_elf_sym_is_global (bfd *abfd ATTRIBUTE_UNUSED, asymbol *sym) if (SGI_COMPAT (abfd)) return (sym->flags & BSF_SECTION_SYM) == 0; else - return ((sym->flags & (BSF_GLOBAL | BSF_WEAK)) != 0 + return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0 || bfd_is_und_section (bfd_get_section (sym)) || bfd_is_com_section (bfd_get_section (sym))); } @@ -1558,6 +1629,7 @@ static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = { #define elf_backend_check_relocs _bfd_mips_elf_check_relocs #define elf_backend_merge_symbol_attribute \ _bfd_mips_elf_merge_symbol_attribute +#define elf_backend_get_target_dtag _bfd_mips_elf_get_target_dtag #define elf_backend_adjust_dynamic_symbol \ _bfd_mips_elf_adjust_dynamic_symbol #define elf_backend_always_size_sections \ @@ -1579,7 +1651,6 @@ static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = { #define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook #define elf_backend_copy_indirect_symbol \ _bfd_mips_elf_copy_indirect_symbol -#define elf_backend_hide_symbol _bfd_mips_elf_hide_symbol #define elf_backend_grok_prstatus elf32_mips_grok_prstatus #define elf_backend_grok_psinfo elf32_mips_grok_psinfo #define elf_backend_ecoff_debug_swap &mips_elf32_ecoff_debug_swap @@ -1589,10 +1660,13 @@ static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = { #define elf_backend_may_use_rela_p 0 #define elf_backend_default_use_rela_p 0 #define elf_backend_sign_extend_vma TRUE +#define elf_backend_plt_readonly 1 +#define elf_backend_plt_sym_val _bfd_mips_elf_plt_sym_val #define elf_backend_discard_info _bfd_mips_elf_discard_info #define elf_backend_ignore_discarded_relocs \ _bfd_mips_elf_ignore_discarded_relocs +#define elf_backend_write_section _bfd_mips_elf_write_section #define elf_backend_mips_irix_compat elf32_mips_irix_compat #define elf_backend_mips_rtype_to_howto mips_elf32_rtype_to_howto #define bfd_elf32_bfd_is_local_label_name \ @@ -1603,6 +1677,7 @@ static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = { #define bfd_elf32_set_section_contents _bfd_mips_elf_set_section_contents #define bfd_elf32_bfd_get_relocated_section_contents \ _bfd_elf_mips_get_relocated_section_contents +#define bfd_elf32_mkobject _bfd_mips_elf_mkobject #define bfd_elf32_bfd_link_hash_table_create \ _bfd_mips_elf_link_hash_table_create #define bfd_elf32_bfd_final_link _bfd_mips_elf_final_link @@ -1651,82 +1726,6 @@ static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = { /* Include the target file again for this target. */ #include "elf32-target.h" - -/* Specific to VxWorks. */ -static reloc_howto_type mips_vxworks_copy_howto_rela = - HOWTO (R_MIPS_COPY, /* 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_MIPS_COPY", /* name */ - FALSE, /* partial_inplace */ - 0x0, /* src_mask */ - 0x0, /* dst_mask */ - FALSE); /* pcrel_offset */ - -/* Specific to VxWorks. */ -static reloc_howto_type mips_vxworks_jump_slot_howto_rela = - HOWTO (R_MIPS_JUMP_SLOT, /* 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_MIPS_JUMP_SLOT", /* name */ - FALSE, /* partial_inplace */ - 0x0, /* src_mask */ - 0x0, /* dst_mask */ - FALSE); /* pcrel_offset */ - -/* Implement elf_backend_bfd_reloc_type_lookup for VxWorks. */ - -static reloc_howto_type * -mips_vxworks_bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code) -{ - switch (code) - { - case BFD_RELOC_MIPS_COPY: - return &mips_vxworks_copy_howto_rela; - case BFD_RELOC_MIPS_JUMP_SLOT: - return &mips_vxworks_jump_slot_howto_rela; - default: - return bfd_elf32_bfd_reloc_type_lookup (abfd, code); - } -} - -static reloc_howto_type * -mips_vxworks_bfd_reloc_name_lookup (bfd *abfd, const char *r_name) -{ - if (strcasecmp (mips_vxworks_copy_howto_rela.name, r_name) == 0) - return &mips_vxworks_copy_howto_rela; - if (strcasecmp (mips_vxworks_jump_slot_howto_rela.name, r_name) == 0) - return &mips_vxworks_jump_slot_howto_rela; - - return bfd_elf32_bfd_reloc_name_lookup (abfd, r_name); -} - -/* Implement elf_backend_mips_rtype_to_lookup for VxWorks. */ - -static reloc_howto_type * -mips_vxworks_rtype_to_howto (unsigned int r_type, bfd_boolean rela_p) -{ - switch (r_type) - { - case R_MIPS_COPY: - return &mips_vxworks_copy_howto_rela; - case R_MIPS_JUMP_SLOT: - return &mips_vxworks_jump_slot_howto_rela; - default: - return mips_elf32_rtype_to_howto (r_type, rela_p); - } -} - /* Implement elf_backend_final_write_processing for VxWorks. */ static void @@ -1759,10 +1758,6 @@ mips_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker) #define elf_backend_want_got_plt 1 #undef elf_backend_want_plt_sym #define elf_backend_want_plt_sym 1 -#undef elf_backend_got_symbol_offset -#define elf_backend_got_symbol_offset 0 -#undef elf_backend_want_dynbss -#define elf_backend_want_dynbss 1 #undef elf_backend_may_use_rel_p #define elf_backend_may_use_rel_p 0 #undef elf_backend_may_use_rela_p @@ -1771,21 +1766,8 @@ mips_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker) #define elf_backend_default_use_rela_p 1 #undef elf_backend_got_header_size #define elf_backend_got_header_size (4 * 3) -#undef elf_backend_plt_readonly -#define elf_backend_plt_readonly 1 - -#undef bfd_elf32_bfd_reloc_type_lookup -#define bfd_elf32_bfd_reloc_type_lookup \ - mips_vxworks_bfd_reloc_type_lookup -#undef bfd_elf32_bfd_reloc_name_lookup -#define bfd_elf32_bfd_reloc_name_lookup \ - mips_vxworks_bfd_reloc_name_lookup -#undef elf_backend_mips_rtype_to_howto -#define elf_backend_mips_rtype_to_howto \ - mips_vxworks_rtype_to_howto -#undef elf_backend_adjust_dynamic_symbol -#define elf_backend_adjust_dynamic_symbol \ - _bfd_mips_vxworks_adjust_dynamic_symbol +#undef elf_backend_plt_sym_val + #undef elf_backend_finish_dynamic_symbol #define elf_backend_finish_dynamic_symbol \ _bfd_mips_vxworks_finish_dynamic_symbol