| /* MIPS-specific support for 32-bit ELF |
| Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 |
| Free Software Foundation, Inc. |
| |
| Most of the information added by Ian Lance Taylor, Cygnus Support, |
| <ian@cygnus.com>. |
| N32/64 ABI support added by Mark Mitchell, CodeSourcery, LLC. |
| <mark@codesourcery.com> |
| Traditional MIPS targets support added by Koundinya.K, Dansk Data |
| Elektronik & Operations Research Group. <kk@ddeorg.soft.net> |
| |
| 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| |
| /* This file handles MIPS ELF targets. SGI Irix 5 uses a slightly |
| different MIPS ELF from other targets. This matters when linking. |
| This file supports both, switching at runtime. */ |
| |
| #include "bfd.h" |
| #include "sysdep.h" |
| #include "libbfd.h" |
| #include "bfdlink.h" |
| #include "genlink.h" |
| #include "elf-bfd.h" |
| #include "elf/mips.h" |
| |
| /* Get the ECOFF swapping routines. */ |
| #include "coff/sym.h" |
| #include "coff/symconst.h" |
| #include "coff/internal.h" |
| #include "coff/ecoff.h" |
| #include "coff/mips.h" |
| #define ECOFF_SIGNED_32 |
| #include "ecoffswap.h" |
| |
| /* This structure is used to hold .got information when linking. It |
| is stored in the tdata field of the bfd_elf_section_data structure. */ |
| |
| struct mips_got_info |
| { |
| /* The global symbol in the GOT with the lowest index in the dynamic |
| symbol table. */ |
| struct elf_link_hash_entry *global_gotsym; |
| /* The number of global .got entries. */ |
| unsigned int global_gotno; |
| /* The number of local .got entries. */ |
| unsigned int local_gotno; |
| /* The number of local .got entries we have used. */ |
| unsigned int assigned_gotno; |
| }; |
| |
| /* The MIPS ELF linker needs additional information for each symbol in |
| the global hash table. */ |
| |
| struct mips_elf_link_hash_entry |
| { |
| struct elf_link_hash_entry root; |
| |
| /* External symbol information. */ |
| EXTR esym; |
| |
| /* Number of R_MIPS_32, R_MIPS_REL32, or R_MIPS_64 relocs against |
| this symbol. */ |
| unsigned int possibly_dynamic_relocs; |
| |
| /* The index of the first dynamic relocation (in the .rel.dyn |
| section) against this symbol. */ |
| unsigned int min_dyn_reloc_index; |
| |
| /* We must not create a stub for a symbol that has relocations |
| related to taking the function's address, i.e. any but |
| R_MIPS_CALL*16 ones -- see "MIPS ABI Supplement, 3rd Edition", |
| p. 4-20. */ |
| boolean no_fn_stub; |
| |
| /* If there is a stub that 32 bit functions should use to call this |
| 16 bit function, this points to the section containing the stub. */ |
| asection *fn_stub; |
| |
| /* Whether we need the fn_stub; this is set if this symbol appears |
| in any relocs other than a 16 bit call. */ |
| boolean need_fn_stub; |
| |
| /* If there is a stub that 16 bit functions should use to call this |
| 32 bit function, this points to the section containing the stub. */ |
| asection *call_stub; |
| |
| /* This is like the call_stub field, but it is used if the function |
| being called returns a floating point value. */ |
| asection *call_fp_stub; |
| }; |
| |
| static bfd_reloc_status_type mips32_64bit_reloc |
| PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
| static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup |
| PARAMS ((bfd *, bfd_reloc_code_real_type)); |
| static reloc_howto_type *mips_rtype_to_howto |
| PARAMS ((unsigned int)); |
| static void mips_info_to_howto_rel |
| PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *)); |
| static void mips_info_to_howto_rela |
| PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *)); |
| static void bfd_mips_elf32_swap_gptab_in |
| PARAMS ((bfd *, const Elf32_External_gptab *, Elf32_gptab *)); |
| static void bfd_mips_elf32_swap_gptab_out |
| PARAMS ((bfd *, const Elf32_gptab *, Elf32_External_gptab *)); |
| #if 0 |
| static void bfd_mips_elf_swap_msym_in |
| PARAMS ((bfd *, const Elf32_External_Msym *, Elf32_Internal_Msym *)); |
| #endif |
| static void bfd_mips_elf_swap_msym_out |
| PARAMS ((bfd *, const Elf32_Internal_Msym *, Elf32_External_Msym *)); |
| static boolean mips_elf_sym_is_global PARAMS ((bfd *, asymbol *)); |
| static boolean mips_elf_create_procedure_table |
| PARAMS ((PTR, bfd *, struct bfd_link_info *, asection *, |
| struct ecoff_debug_info *)); |
| static INLINE int elf_mips_isa PARAMS ((flagword)); |
| static INLINE int elf_mips_mach PARAMS ((flagword)); |
| static INLINE char* elf_mips_abi_name PARAMS ((bfd *)); |
| static boolean mips_elf_is_local_label_name |
| PARAMS ((bfd *, const char *)); |
| static struct bfd_hash_entry *mips_elf_link_hash_newfunc |
| PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); |
| static int gptab_compare PARAMS ((const void *, const void *)); |
| static bfd_reloc_status_type mips16_jump_reloc |
| PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
| static bfd_reloc_status_type mips16_gprel_reloc |
| PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
| static boolean mips_elf_create_compact_rel_section |
| PARAMS ((bfd *, struct bfd_link_info *)); |
| static boolean mips_elf_create_got_section |
| PARAMS ((bfd *, struct bfd_link_info *)); |
| static bfd_reloc_status_type mips_elf_final_gp |
| PARAMS ((bfd *, asymbol *, boolean, char **, bfd_vma *)); |
| static bfd_byte *elf32_mips_get_relocated_section_contents |
| PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, |
| bfd_byte *, boolean, asymbol **)); |
| static asection *mips_elf_create_msym_section |
| PARAMS ((bfd *)); |
| static void mips_elf_irix6_finish_dynamic_symbol |
| PARAMS ((bfd *, const char *, Elf_Internal_Sym *)); |
| static bfd_vma mips_elf_sign_extend PARAMS ((bfd_vma, int)); |
| static boolean mips_elf_overflow_p PARAMS ((bfd_vma, int)); |
| static bfd_vma mips_elf_high PARAMS ((bfd_vma)); |
| static bfd_vma mips_elf_higher PARAMS ((bfd_vma)); |
| static bfd_vma mips_elf_highest PARAMS ((bfd_vma)); |
| static bfd_vma mips_elf_global_got_index |
| PARAMS ((bfd *, struct elf_link_hash_entry *)); |
| static bfd_vma mips_elf_local_got_index |
| PARAMS ((bfd *, struct bfd_link_info *, bfd_vma)); |
| static bfd_vma mips_elf_got_offset_from_index |
| PARAMS ((bfd *, bfd *, bfd_vma)); |
| static boolean mips_elf_record_global_got_symbol |
| PARAMS ((struct elf_link_hash_entry *, struct bfd_link_info *, |
| struct mips_got_info *)); |
| static bfd_vma mips_elf_got_page |
| PARAMS ((bfd *, struct bfd_link_info *, bfd_vma, bfd_vma *)); |
| static const Elf_Internal_Rela *mips_elf_next_relocation |
| PARAMS ((unsigned int, const Elf_Internal_Rela *, |
| const Elf_Internal_Rela *)); |
| static bfd_reloc_status_type mips_elf_calculate_relocation |
| PARAMS ((bfd *, bfd *, asection *, struct bfd_link_info *, |
| const Elf_Internal_Rela *, bfd_vma, reloc_howto_type *, |
| Elf_Internal_Sym *, asection **, bfd_vma *, const char **, |
| boolean *)); |
| static bfd_vma mips_elf_obtain_contents |
| PARAMS ((reloc_howto_type *, const Elf_Internal_Rela *, bfd *, bfd_byte *)); |
| static boolean mips_elf_perform_relocation |
| PARAMS ((struct bfd_link_info *, reloc_howto_type *, |
| const Elf_Internal_Rela *, bfd_vma, |
| bfd *, asection *, bfd_byte *, boolean)); |
| static boolean mips_elf_assign_gp PARAMS ((bfd *, bfd_vma *)); |
| static boolean mips_elf_sort_hash_table_f |
| PARAMS ((struct mips_elf_link_hash_entry *, PTR)); |
| static boolean mips_elf_sort_hash_table |
| PARAMS ((struct bfd_link_info *, unsigned long)); |
| static asection * mips_elf_got_section PARAMS ((bfd *)); |
| static struct mips_got_info *mips_elf_got_info |
| PARAMS ((bfd *, asection **)); |
| static boolean mips_elf_local_relocation_p |
| PARAMS ((bfd *, const Elf_Internal_Rela *, asection **, boolean)); |
| static bfd_vma mips_elf_create_local_got_entry |
| PARAMS ((bfd *, struct mips_got_info *, asection *, bfd_vma)); |
| static bfd_vma mips_elf_got16_entry |
| PARAMS ((bfd *, struct bfd_link_info *, bfd_vma, boolean)); |
| static boolean mips_elf_create_dynamic_relocation |
| PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Rela *, |
| struct mips_elf_link_hash_entry *, asection *, |
| bfd_vma, bfd_vma *, asection *)); |
| static void mips_elf_allocate_dynamic_relocations |
| PARAMS ((bfd *, unsigned int)); |
| static boolean mips_elf_stub_section_p |
| PARAMS ((bfd *, asection *)); |
| static int sort_dynamic_relocs |
| PARAMS ((const void *, const void *)); |
| |
| extern const bfd_target bfd_elf32_tradbigmips_vec; |
| extern const bfd_target bfd_elf32_tradlittlemips_vec; |
| #ifdef BFD64 |
| extern const bfd_target bfd_elf64_tradbigmips_vec; |
| extern const bfd_target bfd_elf64_tradlittlemips_vec; |
| #endif |
| |
| /* The level of IRIX compatibility we're striving for. */ |
| |
| typedef enum { |
| ict_none, |
| ict_irix5, |
| ict_irix6 |
| } irix_compat_t; |
| |
| /* This will be used when we sort the dynamic relocation records. */ |
| static bfd *reldyn_sorting_bfd; |
| |
| /* Nonzero if ABFD is using the N32 ABI. */ |
| |
| #define ABI_N32_P(abfd) \ |
| ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI2) != 0) |
| |
| /* Nonzero if ABFD is using the 64-bit ABI. */ |
| #define ABI_64_P(abfd) \ |
| ((elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64) != 0) |
| |
| /* Depending on the target vector we generate some version of Irix |
| executables or "normal" MIPS ELF ABI executables. */ |
| #ifdef BFD64 |
| #define IRIX_COMPAT(abfd) \ |
| (((abfd->xvec == &bfd_elf64_tradbigmips_vec) || \ |
| (abfd->xvec == &bfd_elf64_tradlittlemips_vec) || \ |
| (abfd->xvec == &bfd_elf32_tradbigmips_vec) || \ |
| (abfd->xvec == &bfd_elf32_tradlittlemips_vec)) ? ict_none : \ |
| ((ABI_N32_P (abfd) || ABI_64_P (abfd)) ? ict_irix6 : ict_irix5)) |
| #else |
| #define IRIX_COMPAT(abfd) \ |
| (((abfd->xvec == &bfd_elf32_tradbigmips_vec) || \ |
| (abfd->xvec == &bfd_elf32_tradlittlemips_vec)) ? ict_none : \ |
| ((ABI_N32_P (abfd) || ABI_64_P (abfd)) ? ict_irix6 : ict_irix5)) |
| #endif |
| |
| /* Whether we are trying to be compatible with IRIX at all. */ |
| #define SGI_COMPAT(abfd) \ |
| (IRIX_COMPAT (abfd) != ict_none) |
| |
| /* The name of the msym section. */ |
| #define MIPS_ELF_MSYM_SECTION_NAME(abfd) ".msym" |
| |
| /* The name of the srdata section. */ |
| #define MIPS_ELF_SRDATA_SECTION_NAME(abfd) ".srdata" |
| |
| /* The name of the options section. */ |
| #define MIPS_ELF_OPTIONS_SECTION_NAME(abfd) \ |
| (IRIX_COMPAT (abfd) == ict_irix6 ? ".MIPS.options" : ".options") |
| |
| /* The name of the stub section. */ |
| #define MIPS_ELF_STUB_SECTION_NAME(abfd) \ |
| (IRIX_COMPAT (abfd) == ict_irix6 ? ".MIPS.stubs" : ".stub") |
| |
| /* The name of the dynamic relocation section. */ |
| #define MIPS_ELF_REL_DYN_SECTION_NAME(abfd) ".rel.dyn" |
| |
| /* The size of an external REL relocation. */ |
| #define MIPS_ELF_REL_SIZE(abfd) \ |
| (get_elf_backend_data (abfd)->s->sizeof_rel) |
| |
| /* The size of an external dynamic table entry. */ |
| #define MIPS_ELF_DYN_SIZE(abfd) \ |
| (get_elf_backend_data (abfd)->s->sizeof_dyn) |
| |
| /* The size of a GOT entry. */ |
| #define MIPS_ELF_GOT_SIZE(abfd) \ |
| (get_elf_backend_data (abfd)->s->arch_size / 8) |
| |
| /* The size of a symbol-table entry. */ |
| #define MIPS_ELF_SYM_SIZE(abfd) \ |
| (get_elf_backend_data (abfd)->s->sizeof_sym) |
| |
| /* The default alignment for sections, as a power of two. */ |
| #define MIPS_ELF_LOG_FILE_ALIGN(abfd) \ |
| (get_elf_backend_data (abfd)->s->file_align == 8 ? 3 : 2) |
| |
| /* Get word-sized data. */ |
| #define MIPS_ELF_GET_WORD(abfd, ptr) \ |
| (ABI_64_P (abfd) ? bfd_get_64 (abfd, ptr) : bfd_get_32 (abfd, ptr)) |
| |
| /* Put out word-sized data. */ |
| #define MIPS_ELF_PUT_WORD(abfd, val, ptr) \ |
| (ABI_64_P (abfd) \ |
| ? bfd_put_64 (abfd, val, ptr) \ |
| : bfd_put_32 (abfd, val, ptr)) |
| |
| /* Add a dynamic symbol table-entry. */ |
| #ifdef BFD64 |
| #define MIPS_ELF_ADD_DYNAMIC_ENTRY(info, tag, val) \ |
| (ABI_64_P (elf_hash_table (info)->dynobj) \ |
| ? bfd_elf64_add_dynamic_entry (info, tag, val) \ |
| : bfd_elf32_add_dynamic_entry (info, tag, val)) |
| #else |
| #define MIPS_ELF_ADD_DYNAMIC_ENTRY(info, tag, val) \ |
| (ABI_64_P (elf_hash_table (info)->dynobj) \ |
| ? (abort (), false) \ |
| : bfd_elf32_add_dynamic_entry (info, tag, val)) |
| #endif |
| |
| /* The number of local .got entries we reserve. */ |
| #define MIPS_RESERVED_GOTNO (2) |
| |
| /* Instructions which appear in a stub. For some reason the stub is |
| slightly different on an SGI system. */ |
| #define ELF_MIPS_GP_OFFSET(abfd) (SGI_COMPAT (abfd) ? 0x7ff0 : 0x8000) |
| #define STUB_LW(abfd) \ |
| (SGI_COMPAT (abfd) \ |
| ? (ABI_64_P (abfd) \ |
| ? 0xdf998010 /* ld t9,0x8010(gp) */ \ |
| : 0x8f998010) /* lw t9,0x8010(gp) */ \ |
| : 0x8f998010) /* lw t9,0x8000(gp) */ |
| #define STUB_MOVE(abfd) \ |
| (SGI_COMPAT (abfd) ? 0x03e07825 : 0x03e07821) /* move t7,ra */ |
| #define STUB_JALR 0x0320f809 /* jal t9 */ |
| #define STUB_LI16(abfd) \ |
| (SGI_COMPAT (abfd) ? 0x34180000 : 0x24180000) /* ori t8,zero,0 */ |
| #define MIPS_FUNCTION_STUB_SIZE (16) |
| |
| #if 0 |
| /* We no longer try to identify particular sections for the .dynsym |
| section. When we do, we wind up crashing if there are other random |
| sections with relocations. */ |
| |
| /* Names of sections which appear in the .dynsym section in an Irix 5 |
| executable. */ |
| |
| static const char * const mips_elf_dynsym_sec_names[] = |
| { |
| ".text", |
| ".init", |
| ".fini", |
| ".data", |
| ".rodata", |
| ".sdata", |
| ".sbss", |
| ".bss", |
| NULL |
| }; |
| |
| #define SIZEOF_MIPS_DYNSYM_SECNAMES \ |
| (sizeof mips_elf_dynsym_sec_names / sizeof mips_elf_dynsym_sec_names[0]) |
| |
| /* The number of entries in mips_elf_dynsym_sec_names which go in the |
| text segment. */ |
| |
| #define MIPS_TEXT_DYNSYM_SECNO (3) |
| |
| #endif /* 0 */ |
| |
| /* The names of the runtime procedure table symbols used on Irix 5. */ |
| |
| static const char * const mips_elf_dynsym_rtproc_names[] = |
| { |
| "_procedure_table", |
| "_procedure_string_table", |
| "_procedure_table_size", |
| NULL |
| }; |
| |
| /* These structures are used to generate the .compact_rel section on |
| Irix 5. */ |
| |
| typedef struct |
| { |
| unsigned long id1; /* Always one? */ |
| unsigned long num; /* Number of compact relocation entries. */ |
| unsigned long id2; /* Always two? */ |
| unsigned long offset; /* The file offset of the first relocation. */ |
| unsigned long reserved0; /* Zero? */ |
| unsigned long reserved1; /* Zero? */ |
| } Elf32_compact_rel; |
| |
| typedef struct |
| { |
| bfd_byte id1[4]; |
| bfd_byte num[4]; |
| bfd_byte id2[4]; |
| bfd_byte offset[4]; |
| bfd_byte reserved0[4]; |
| bfd_byte reserved1[4]; |
| } Elf32_External_compact_rel; |
| |
| typedef struct |
| { |
| unsigned int ctype : 1; /* 1: long 0: short format. See below. */ |
| unsigned int rtype : 4; /* Relocation types. See below. */ |
| unsigned int dist2to : 8; |
| unsigned int relvaddr : 19; /* (VADDR - vaddr of the previous entry)/ 4 */ |
| unsigned long konst; /* KONST field. See below. */ |
| unsigned long vaddr; /* VADDR to be relocated. */ |
| } Elf32_crinfo; |
| |
| typedef struct |
| { |
| unsigned int ctype : 1; /* 1: long 0: short format. See below. */ |
| unsigned int rtype : 4; /* Relocation types. See below. */ |
| unsigned int dist2to : 8; |
| unsigned int relvaddr : 19; /* (VADDR - vaddr of the previous entry)/ 4 */ |
| unsigned long konst; /* KONST field. See below. */ |
| } Elf32_crinfo2; |
| |
| typedef struct |
| { |
| bfd_byte info[4]; |
| bfd_byte konst[4]; |
| bfd_byte vaddr[4]; |
| } Elf32_External_crinfo; |
| |
| typedef struct |
| { |
| bfd_byte info[4]; |
| bfd_byte konst[4]; |
| } Elf32_External_crinfo2; |
| |
| /* These are the constants used to swap the bitfields in a crinfo. */ |
| |
| #define CRINFO_CTYPE (0x1) |
| #define CRINFO_CTYPE_SH (31) |
| #define CRINFO_RTYPE (0xf) |
| #define CRINFO_RTYPE_SH (27) |
| #define CRINFO_DIST2TO (0xff) |
| #define CRINFO_DIST2TO_SH (19) |
| #define CRINFO_RELVADDR (0x7ffff) |
| #define CRINFO_RELVADDR_SH (0) |
| |
| /* A compact relocation info has long (3 words) or short (2 words) |
| formats. A short format doesn't have VADDR field and relvaddr |
| fields contains ((VADDR - vaddr of the previous entry) >> 2). */ |
| #define CRF_MIPS_LONG 1 |
| #define CRF_MIPS_SHORT 0 |
| |
| /* There are 4 types of compact relocation at least. The value KONST |
| has different meaning for each type: |
| |
| (type) (konst) |
| CT_MIPS_REL32 Address in data |
| CT_MIPS_WORD Address in word (XXX) |
| CT_MIPS_GPHI_LO GP - vaddr |
| CT_MIPS_JMPAD Address to jump |
| */ |
| |
| #define CRT_MIPS_REL32 0xa |
| #define CRT_MIPS_WORD 0xb |
| #define CRT_MIPS_GPHI_LO 0xc |
| #define CRT_MIPS_JMPAD 0xd |
| |
| #define mips_elf_set_cr_format(x,format) ((x).ctype = (format)) |
| #define mips_elf_set_cr_type(x,type) ((x).rtype = (type)) |
| #define mips_elf_set_cr_dist2to(x,v) ((x).dist2to = (v)) |
| #define mips_elf_set_cr_relvaddr(x,d) ((x).relvaddr = (d)<<2) |
| |
| static void bfd_elf32_swap_compact_rel_out |
| PARAMS ((bfd *, const Elf32_compact_rel *, Elf32_External_compact_rel *)); |
| static void bfd_elf32_swap_crinfo_out |
| PARAMS ((bfd *, const Elf32_crinfo *, Elf32_External_crinfo *)); |
| |
| #define USE_REL 1 /* MIPS uses REL relocations instead of RELA */ |
| |
| /* In case we're on a 32-bit machine, construct a 64-bit "-1" value |
| from smaller values. Start with zero, widen, *then* decrement. */ |
| #define MINUS_ONE (((bfd_vma)0) - 1) |
| |
| static reloc_howto_type elf_mips_howto_table[] = |
| { |
| /* No relocation. */ |
| HOWTO (R_MIPS_NONE, /* type */ |
| 0, /* rightshift */ |
| 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 0, /* bitsize */ |
| false, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| bfd_elf_generic_reloc, /* special_function */ |
| "R_MIPS_NONE", /* name */ |
| false, /* partial_inplace */ |
| 0, /* src_mask */ |
| 0, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* 16 bit relocation. */ |
| HOWTO (R_MIPS_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_MIPS_16", /* name */ |
| true, /* partial_inplace */ |
| 0xffff, /* src_mask */ |
| 0xffff, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* 32 bit relocation. */ |
| HOWTO (R_MIPS_32, /* 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_32", /* name */ |
| true, /* partial_inplace */ |
| 0xffffffff, /* src_mask */ |
| 0xffffffff, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* 32 bit symbol relative relocation. */ |
| HOWTO (R_MIPS_REL32, /* 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_REL32", /* name */ |
| true, /* partial_inplace */ |
| 0xffffffff, /* src_mask */ |
| 0xffffffff, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* 26 bit jump address. */ |
| HOWTO (R_MIPS_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 + 4. */ |
| bfd_elf_generic_reloc, /* special_function */ |
| "R_MIPS_26", /* name */ |
| true, /* partial_inplace */ |
| 0x3ffffff, /* src_mask */ |
| 0x3ffffff, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* High 16 bits of symbol value. */ |
| HOWTO (R_MIPS_HI16, /* 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_hi16_reloc, /* special_function */ |
| "R_MIPS_HI16", /* name */ |
| true, /* partial_inplace */ |
| 0xffff, /* src_mask */ |
| 0xffff, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* Low 16 bits of symbol value. */ |
| HOWTO (R_MIPS_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_mips_elf_lo16_reloc, /* special_function */ |
| "R_MIPS_LO16", /* name */ |
| true, /* partial_inplace */ |
| 0xffff, /* src_mask */ |
| 0xffff, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* GP relative reference. */ |
| HOWTO (R_MIPS_GPREL16, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| false, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_signed, /* complain_on_overflow */ |
| _bfd_mips_elf_gprel16_reloc, /* special_function */ |
| "R_MIPS_GPREL16", /* name */ |
| true, /* partial_inplace */ |
| 0xffff, /* src_mask */ |
| 0xffff, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* Reference to literal section. */ |
| HOWTO (R_MIPS_LITERAL, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| false, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_signed, /* complain_on_overflow */ |
| _bfd_mips_elf_gprel16_reloc, /* special_function */ |
| "R_MIPS_LITERAL", /* name */ |
| true, /* partial_inplace */ |
| 0xffff, /* src_mask */ |
| 0xffff, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* Reference to global offset table. */ |
| HOWTO (R_MIPS_GOT16, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| false, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_signed, /* complain_on_overflow */ |
| _bfd_mips_elf_got16_reloc, /* special_function */ |
| "R_MIPS_GOT16", /* name */ |
| false, /* partial_inplace */ |
| 0xffff, /* src_mask */ |
| 0xffff, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* 16 bit PC relative reference. */ |
| HOWTO (R_MIPS_PC16, /* type */ |
| 0, /* 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_MIPS_PC16", /* name */ |
| true, /* partial_inplace */ |
| 0xffff, /* src_mask */ |
| 0xffff, /* dst_mask */ |
| true), /* pcrel_offset */ |
| |
| /* 16 bit call through global offset table. */ |
| HOWTO (R_MIPS_CALL16, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| false, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_signed, /* complain_on_overflow */ |
| bfd_elf_generic_reloc, /* special_function */ |
| "R_MIPS_CALL16", /* name */ |
| false, /* partial_inplace */ |
| 0xffff, /* src_mask */ |
| 0xffff, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* 32 bit GP relative reference. */ |
| HOWTO (R_MIPS_GPREL32, /* 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_mips_elf_gprel32_reloc, /* special_function */ |
| "R_MIPS_GPREL32", /* name */ |
| true, /* partial_inplace */ |
| 0xffffffff, /* src_mask */ |
| 0xffffffff, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* The remaining relocs are defined on Irix 5, although they are |
| not defined by the ABI. */ |
| EMPTY_HOWTO (13), |
| EMPTY_HOWTO (14), |
| EMPTY_HOWTO (15), |
| |
| /* A 5 bit shift field. */ |
| HOWTO (R_MIPS_SHIFT5, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 5, /* bitsize */ |
| false, /* pc_relative */ |
| 6, /* bitpos */ |
| complain_overflow_bitfield, /* complain_on_overflow */ |
| bfd_elf_generic_reloc, /* special_function */ |
| "R_MIPS_SHIFT5", /* name */ |
| true, /* partial_inplace */ |
| 0x000007c0, /* src_mask */ |
| 0x000007c0, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* A 6 bit shift field. */ |
| /* FIXME: This is not handled correctly; a special function is |
| needed to put the most significant bit in the right place. */ |
| HOWTO (R_MIPS_SHIFT6, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 6, /* bitsize */ |
| false, /* pc_relative */ |
| 6, /* bitpos */ |
| complain_overflow_bitfield, /* complain_on_overflow */ |
| bfd_elf_generic_reloc, /* special_function */ |
| "R_MIPS_SHIFT6", /* name */ |
| true, /* partial_inplace */ |
| 0x000007c4, /* src_mask */ |
| 0x000007c4, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* A 64 bit relocation. */ |
| HOWTO (R_MIPS_64, /* type */ |
| 0, /* rightshift */ |
| 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 64, /* bitsize */ |
| false, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_bitfield, /* complain_on_overflow */ |
| mips32_64bit_reloc, /* special_function */ |
| "R_MIPS_64", /* name */ |
| true, /* partial_inplace */ |
| MINUS_ONE, /* src_mask */ |
| MINUS_ONE, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* Displacement in the global offset table. */ |
| HOWTO (R_MIPS_GOT_DISP, /* type */ |
| 0, /* rightshift */ |
| 2, /* 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_MIPS_GOT_DISP", /* name */ |
| true, /* partial_inplace */ |
| 0x0000ffff, /* src_mask */ |
| 0x0000ffff, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* Displacement to page pointer in the global offset table. */ |
| HOWTO (R_MIPS_GOT_PAGE, /* type */ |
| 0, /* rightshift */ |
| 2, /* 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_MIPS_GOT_PAGE", /* name */ |
| true, /* partial_inplace */ |
| 0x0000ffff, /* src_mask */ |
| 0x0000ffff, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* Offset from page pointer in the global offset table. */ |
| HOWTO (R_MIPS_GOT_OFST, /* type */ |
| 0, /* rightshift */ |
| 2, /* 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_MIPS_GOT_OFST", /* name */ |
| true, /* partial_inplace */ |
| 0x0000ffff, /* src_mask */ |
| 0x0000ffff, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* High 16 bits of displacement in global offset table. */ |
| HOWTO (R_MIPS_GOT_HI16, /* 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_MIPS_GOT_HI16", /* name */ |
| true, /* partial_inplace */ |
| 0x0000ffff, /* src_mask */ |
| 0x0000ffff, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* Low 16 bits of displacement in global offset table. */ |
| HOWTO (R_MIPS_GOT_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_MIPS_GOT_LO16", /* name */ |
| true, /* partial_inplace */ |
| 0x0000ffff, /* src_mask */ |
| 0x0000ffff, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* 64 bit subtraction. Used in the N32 ABI. */ |
| HOWTO (R_MIPS_SUB, /* type */ |
| 0, /* rightshift */ |
| 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 64, /* bitsize */ |
| false, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_bitfield, /* complain_on_overflow */ |
| bfd_elf_generic_reloc, /* special_function */ |
| "R_MIPS_SUB", /* name */ |
| true, /* partial_inplace */ |
| MINUS_ONE, /* src_mask */ |
| MINUS_ONE, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* Used to cause the linker to insert and delete instructions? */ |
| EMPTY_HOWTO (R_MIPS_INSERT_A), |
| EMPTY_HOWTO (R_MIPS_INSERT_B), |
| EMPTY_HOWTO (R_MIPS_DELETE), |
| |
| /* Get the higher value of a 64 bit addend. */ |
| HOWTO (R_MIPS_HIGHER, /* 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_MIPS_HIGHER", /* name */ |
| true, /* partial_inplace */ |
| 0, /* src_mask */ |
| 0xffff, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* Get the highest value of a 64 bit addend. */ |
| HOWTO (R_MIPS_HIGHEST, /* 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_MIPS_HIGHEST", /* name */ |
| true, /* partial_inplace */ |
| 0, /* src_mask */ |
| 0xffff, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* High 16 bits of displacement in global offset table. */ |
| HOWTO (R_MIPS_CALL_HI16, /* 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_MIPS_CALL_HI16", /* name */ |
| true, /* partial_inplace */ |
| 0x0000ffff, /* src_mask */ |
| 0x0000ffff, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* Low 16 bits of displacement in global offset table. */ |
| HOWTO (R_MIPS_CALL_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_MIPS_CALL_LO16", /* name */ |
| true, /* partial_inplace */ |
| 0x0000ffff, /* src_mask */ |
| 0x0000ffff, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| /* Section displacement. */ |
| HOWTO (R_MIPS_SCN_DISP, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 32, /* bitsize */ |
| false, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| bfd_elf_generic_reloc, /* special_function */ |
| "R_MIPS_SCN_DISP", /* name */ |
| false, /* partial_inplace */ |
| 0xffffffff, /* src_mask */ |
| 0xffffffff, /* dst_mask */ |
| false), /* pcrel_offset */ |
| |
| EMPTY_HOWTO (R_MIPS_REL16), |
| EMPTY_HOWTO (R_MIPS_ADD_IMMEDIATE), |
| EMPTY_HOWTO (R_MIPS_PJUMP), |
| EMPTY_HOWTO (R_MIPS_RELGOT), |
| |
| /* Protected jump conversion. This is an optimization hint. No |
| relocation is required for correctness. */ |
| HOWTO (R_MIPS_JALR, /* type */ |
| 0, /* rightshift */ |
| 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 0, /* bitsize */ |
| false, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| bfd_elf_generic_reloc, /* special_function */ |
| "R_MIPS_JALR", /* name */ |
| false, /* partial_inplace */ |
| 0x00000000, /* src_mask */ |
| 0x00000000, /* dst_mask */ |
| false), /* pcrel_offset */ |
| }; |
| |
| /* The reloc used for BFD_RELOC_CTOR when doing a 64 bit link. This |
| is a hack to make the linker think that we need 64 bit values. */ |
| static reloc_howto_type elf_mips_ctor64_howto = |
| HOWTO (R_MIPS_64, /* type */ |
| 0, /* rightshift */ |
| 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 32, /* bitsize */ |
| false, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_signed, /* complain_on_overflow */ |
| mips32_64bit_reloc, /* special_function */ |
| "R_MIPS_64", /* name */ |
| true, /* partial_inplace */ |
| 0xffffffff, /* src_mask */ |
| 0xffffffff, /* dst_mask */ |
| false); /* pcrel_offset */ |
| |
| /* The reloc used for the mips16 jump instruction. */ |
| static reloc_howto_type elf_mips16_jump_howto = |
| HOWTO (R_MIPS16_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. */ |
| mips16_jump_reloc, /* special_function */ |
| "R_MIPS16_26", /* name */ |
| true, /* partial_inplace */ |
| 0x3ffffff, /* src_mask */ |
| 0x3ffffff, /* dst_mask */ |
| false); /* pcrel_offset */ |
| |
| /* The reloc used for the mips16 gprel instruction. */ |
| static reloc_howto_type elf_mips16_gprel_howto = |
| HOWTO (R_MIPS16_GPREL, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| false, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_signed, /* complain_on_overflow */ |
| mips16_gprel_reloc, /* special_function */ |
| "R_MIPS16_GPREL", /* name */ |
| true, /* partial_inplace */ |
| 0x07ff001f, /* src_mask */ |
| 0x07ff001f, /* dst_mask */ |
| false); /* pcrel_offset */ |
| |
| /* GNU extensions for embedded-pic. */ |
| /* High 16 bits of symbol value, pc-relative. */ |
| static reloc_howto_type elf_mips_gnu_rel_hi16 = |
| HOWTO (R_MIPS_GNU_REL_HI16, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| true, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| _bfd_mips_elf_hi16_reloc, /* special_function */ |
| "R_MIPS_GNU_REL_HI16", /* name */ |
| true, /* partial_inplace */ |
| 0xffff, /* src_mask */ |
| 0xffff, /* dst_mask */ |
| true); /* pcrel_offset */ |
| |
| /* Low 16 bits of symbol value, pc-relative. */ |
| static reloc_howto_type elf_mips_gnu_rel_lo16 = |
| HOWTO (R_MIPS_GNU_REL_LO16, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 16, /* bitsize */ |
| true, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_dont, /* complain_on_overflow */ |
| _bfd_mips_elf_lo16_reloc, /* special_function */ |
| "R_MIPS_GNU_REL_LO16", /* name */ |
| true, /* partial_inplace */ |
| 0xffff, /* src_mask */ |
| 0xffff, /* dst_mask */ |
| true); /* pcrel_offset */ |
| |
| /* 16 bit offset for pc-relative branches. */ |
| static reloc_howto_type elf_mips_gnu_rel16_s2 = |
| HOWTO (R_MIPS_GNU_REL16_S2, /* 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_MIPS_GNU_REL16_S2", /* name */ |
| true, /* partial_inplace */ |
| 0xffff, /* src_mask */ |
| 0xffff, /* dst_mask */ |
| true); /* pcrel_offset */ |
| |
| /* 64 bit pc-relative. */ |
| static reloc_howto_type elf_mips_gnu_pcrel64 = |
| HOWTO (R_MIPS_PC64, /* type */ |
| 0, /* rightshift */ |
| 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 64, /* bitsize */ |
| true, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_signed, /* complain_on_overflow */ |
| bfd_elf_generic_reloc, /* special_function */ |
| "R_MIPS_PC64", /* name */ |
| true, /* partial_inplace */ |
| MINUS_ONE, /* src_mask */ |
| MINUS_ONE, /* dst_mask */ |
| true); /* pcrel_offset */ |
| |
| /* 32 bit pc-relative. */ |
| static reloc_howto_type elf_mips_gnu_pcrel32 = |
| HOWTO (R_MIPS_PC32, /* type */ |
| 0, /* rightshift */ |
| 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 32, /* bitsize */ |
| true, /* pc_relative */ |
| 0, /* bitpos */ |
| complain_overflow_signed, /* complain_on_overflow */ |
| bfd_elf_generic_reloc, /* special_function */ |
| "R_MIPS_PC32", /* name */ |
| true, /* partial_inplace */ |
| 0xffffffff, /* src_mask */ |
| 0xffffffff, /* dst_mask */ |
| true); /* pcrel_offset */ |
| |
| /* GNU extension to record C++ vtable hierarchy */ |
| static reloc_howto_type elf_mips_gnu_vtinherit_howto = |
| HOWTO (R_MIPS_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_MIPS_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 elf_mips_gnu_vtentry_howto = |
| HOWTO (R_MIPS_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 */ |
| _bfd_elf_rel_vtable_reloc_fn, /* special_function */ |
| "R_MIPS_GNU_VTENTRY", /* name */ |
| false, /* partial_inplace */ |
| 0, /* src_mask */ |
| 0, /* dst_mask */ |
| false); /* pcrel_offset */ |
| |
| /* Do a R_MIPS_HI16 relocation. This has to be done in combination |
| with a R_MIPS_LO16 reloc, because there is a carry from the LO16 to |
| the HI16. Here we just save the information we need; we do the |
| actual relocation when we see the LO16. MIPS ELF requires that the |
| LO16 immediately follow the HI16. As a GNU extension, we permit an |
| arbitrary number of HI16 relocs to be associated with a single LO16 |
| reloc. This extension permits gcc to output the HI and LO relocs |
| itself. */ |
| |
| struct mips_hi16 |
| { |
| struct mips_hi16 *next; |
| bfd_byte *addr; |
| bfd_vma addend; |
| }; |
| |
| /* FIXME: This should not be a static variable. */ |
| |
| static struct mips_hi16 *mips_hi16_list; |
| |
| bfd_reloc_status_type |
| _bfd_mips_elf_hi16_reloc (abfd, |
| reloc_entry, |
| symbol, |
| data, |
| input_section, |
| output_bfd, |
| error_message) |
| bfd *abfd ATTRIBUTE_UNUSED; |
| arelent *reloc_entry; |
| asymbol *symbol; |
| PTR data; |
| asection *input_section; |
| bfd *output_bfd; |
| char **error_message; |
| { |
| bfd_reloc_status_type ret; |
| bfd_vma relocation; |
| struct mips_hi16 *n; |
| |
| /* 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; |
| } |
| |
| ret = bfd_reloc_ok; |
| |
| if (strcmp (bfd_asymbol_name (symbol), "_gp_disp") == 0) |
| { |
| boolean relocateable; |
| bfd_vma gp; |
| |
| if (ret == bfd_reloc_undefined) |
| abort (); |
| |
| if (output_bfd != NULL) |
| relocateable = true; |
| else |
| { |
| relocateable = false; |
| output_bfd = symbol->section->output_section->owner; |
| } |
| |
| ret = mips_elf_final_gp (output_bfd, symbol, relocateable, |
| error_message, &gp); |
| if (ret != bfd_reloc_ok) |
| return ret; |
| |
| relocation = gp - reloc_entry->address; |
| } |
| else |
| { |
| if (bfd_is_und_section (symbol->section) |
| && output_bfd == (bfd *) NULL) |
| ret = bfd_reloc_undefined; |
| |
| 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 (reloc_entry->address > input_section->_cooked_size) |
| return bfd_reloc_outofrange; |
| |
| /* Save the information, and let LO16 do the actual relocation. */ |
| n = (struct mips_hi16 *) bfd_malloc (sizeof *n); |
| if (n == NULL) |
| return bfd_reloc_outofrange; |
| n->addr = (bfd_byte *) data + reloc_entry->address; |
| n->addend = relocation; |
| n->next = mips_hi16_list; |
| mips_hi16_list = n; |
| |
| if (output_bfd != (bfd *) NULL) |
| reloc_entry->address += input_section->output_offset; |
| |
| return ret; |
| } |
| |
| /* Do a R_MIPS_LO16 relocation. This is a straightforward 16 bit |
| inplace relocation; this function exists in order to do the |
| R_MIPS_HI16 relocation described above. */ |
| |
| bfd_reloc_status_type |
| _bfd_mips_elf_lo16_reloc (abfd, |
| reloc_entry, |
| symbol, |
| data, |
| input_section, |
| output_bfd, |
| error_message) |
| bfd *abfd; |
| arelent *reloc_entry; |
| asymbol *symbol; |
| PTR data; |
| asection *input_section; |
| bfd *output_bfd; |
| char **error_message; |
| { |
| arelent gp_disp_relent; |
| |
| if (mips_hi16_list != NULL) |
| { |
| struct mips_hi16 *l; |
| |
| l = mips_hi16_list; |
| while (l != NULL) |
| { |
| unsigned long insn; |
| unsigned long val; |
| unsigned long vallo; |
| struct mips_hi16 *next; |
| |
| /* Do the HI16 relocation. Note that we actually don't need |
| to know anything about the LO16 itself, except where to |
| find the low 16 bits of the addend needed by the LO16. */ |
| insn = bfd_get_32 (abfd, l->addr); |
| vallo = (bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address) |
| & 0xffff); |
| val = ((insn & 0xffff) << 16) + vallo; |
| val += l->addend; |
| |
| /* The low order 16 bits are always treated as a signed |
| value. Therefore, a negative value in the low order bits |
| requires an adjustment in the high order bits. We need |
| to make this adjustment in two ways: once for the bits we |
| took from the data, and once for the bits we are putting |
| back in to the data. */ |
| if ((vallo & 0x8000) != 0) |
| val -= 0x10000; |
| if ((val & 0x8000) != 0) |
| val += 0x10000; |
| |
| insn = (insn & ~0xffff) | ((val >> 16) & 0xffff); |
| bfd_put_32 (abfd, insn, l->addr); |
| |
| if (strcmp (bfd_asymbol_name (symbol), "_gp_disp") == 0) |
| { |
| gp_disp_relent = *reloc_entry; |
| reloc_entry = &gp_disp_relent; |
| reloc_entry->addend = l->addend; |
| } |
| |
| next = l->next; |
| free (l); |
| l = next; |
| } |
| |
| mips_hi16_list = NULL; |
| } |
| else if (strcmp (bfd_asymbol_name (symbol), "_gp_disp") == 0) |
| { |
| bfd_reloc_status_type ret; |
| bfd_vma gp, relocation; |
| |
| /* FIXME: Does this case ever occur? */ |
| |
| ret = mips_elf_final_gp (output_bfd, symbol, true, error_message, &gp); |
| if (ret != bfd_reloc_ok) |
| return ret; |
| |
| relocation = gp - reloc_entry->address; |
| relocation += symbol->section->output_section->vma; |
| relocation += symbol->section->output_offset; |
| relocation += reloc_entry->addend; |
| |
| if (reloc_entry->address > input_section->_cooked_size) |
| return bfd_reloc_outofrange; |
| |
| gp_disp_relent = *reloc_entry; |
| reloc_entry = &gp_disp_relent; |
| reloc_entry->addend = relocation - 4; |
| } |
| |
| /* Now do the LO16 reloc in the usual way. */ |
| return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| input_section, output_bfd, error_message); |
| } |
| |
| /* Do a R_MIPS_GOT16 reloc. This is a reloc against the global offset |
| table used for PIC code. If the symbol is an external symbol, the |
| instruction is modified to contain the offset of the appropriate |
| entry in the global offset table. If the symbol is a section |
| symbol, the next reloc is a R_MIPS_LO16 reloc. The two 16 bit |
| addends are combined to form the real addend against the section |
| symbol; the GOT16 is modified to contain the offset of an entry in |
| the global offset table, and the LO16 is modified to offset it |
| appropriately. Thus an offset larger than 16 bits requires a |
| modified value in the global offset table. |
| |
| This implementation suffices for the assembler, but the linker does |
| not yet know how to create global offset tables. */ |
| |
| bfd_reloc_status_type |
| _bfd_mips_elf_got16_reloc (abfd, |
| reloc_entry, |
| symbol, |
| data, |
| input_section, |
| output_bfd, |
| error_message) |
| bfd *abfd; |
| arelent *reloc_entry; |
| asymbol *symbol; |
| PTR data; |
| asection *input_section; |
| bfd *output_bfd; |
| char **error_message; |
| { |
| /* 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 we're relocating, and this is a local symbol, we can handle it |
| just like HI16. */ |
| if (output_bfd != (bfd *) NULL |
| && (symbol->flags & BSF_SECTION_SYM) != 0) |
| return _bfd_mips_elf_hi16_reloc (abfd, reloc_entry, symbol, data, |
| input_section, output_bfd, error_message); |
| |
| abort (); |
| } |
| |
| /* Set the GP value for OUTPUT_BFD. Returns false if this is a |
| dangerous relocation. */ |
| |
| static boolean |
| mips_elf_assign_gp (output_bfd, pgp) |
| bfd *output_bfd; |
| bfd_vma *pgp; |
| { |
| unsigned int count; |
| asymbol **sym; |
| unsigned int i; |
| |
| /* If we've already figured out what GP will be, just return it. */ |
| *pgp = _bfd_get_gp_value (output_bfd); |
| if (*pgp) |
| return true; |
| |
| count = bfd_get_symcount (output_bfd); |
| sym = bfd_get_outsymbols (output_bfd); |
| |
| /* The linker script will have created a symbol named `_gp' with the |
| appropriate value. */ |
| if (sym == (asymbol **) NULL) |
| i = count; |
| else |
| { |
| for (i = 0; i < count; i++, sym++) |
| { |
| register CONST char *name; |
| |
| name = bfd_asymbol_name (*sym); |
| if (*name == '_' && strcmp (name, "_gp") == 0) |
| { |
| *pgp = bfd_asymbol_value (*sym); |
| _bfd_set_gp_value (output_bfd, *pgp); |
| break; |
| } |
| } |
| } |
| |
| if (i >= count) |
| { |
| /* Only get the error once. */ |
| *pgp = 4; |
| _bfd_set_gp_value (output_bfd, *pgp); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| /* We have to figure out the gp value, so that we can adjust the |
| symbol value correctly. We look up the symbol _gp in the output |
| BFD. If we can't find it, we're stuck. We cache it in the ELF |
| target data. We don't need to adjust the symbol value for an |
| external symbol if we are producing relocateable output. */ |
| |
| static bfd_reloc_status_type |
| mips_elf_final_gp (output_bfd, symbol, relocateable, error_message, pgp) |
| bfd *output_bfd; |
| asymbol *symbol; |
| boolean relocateable; |
| char **error_message; |
| bfd_vma *pgp; |
| { |
| if (bfd_is_und_section (symbol->section) |
| && ! relocateable) |
| { |
| *pgp = 0; |
| return bfd_reloc_undefined; |
| } |
| |
| *pgp = _bfd_get_gp_value (output_bfd); |
| if (*pgp == 0 |
| && (! relocateable |
| || (symbol->flags & BSF_SECTION_SYM) != 0)) |
| { |
| if (relocateable) |
| { |
| /* Make up a value. */ |
| *pgp = symbol->section->output_section->vma + 0x4000; |
| _bfd_set_gp_value (output_bfd, *pgp); |
| } |
| else if (!mips_elf_assign_gp (output_bfd, pgp)) |
| { |
| *error_message = |
| (char *) _("GP relative relocation when _gp not defined"); |
| return bfd_reloc_dangerous; |
| } |
| } |
| |
| return bfd_reloc_ok; |
| } |
| |
| /* Do a R_MIPS_GPREL16 relocation. This is a 16 bit value which must |
| become the offset from the gp register. This function also handles |
| R_MIPS_LITERAL relocations, although those can be handled more |
| cleverly because the entries in the .lit8 and .lit4 sections can be |
| merged. */ |
| |
| static bfd_reloc_status_type gprel16_with_gp PARAMS ((bfd *, asymbol *, |
| arelent *, asection *, |
| boolean, PTR, bfd_vma)); |
| |
| bfd_reloc_status_type |
| _bfd_mips_elf_gprel16_reloc (abfd, reloc_entry, symbol, data, input_section, |
| output_bfd, error_message) |
| bfd *abfd; |
| arelent *reloc_entry; |
| asymbol *symbol; |
| PTR data; |
| asection *input_section; |
| bfd *output_bfd; |
| char **error_message; |
| { |
| boolean relocateable; |
| bfd_reloc_status_type ret; |
| bfd_vma gp; |
| |
| /* If we're relocating, and this is an external symbol with no |
| addend, we don't want to change anything. We will only have an |
| addend if this is a newly created reloc, not read from an ELF |
| file. */ |
| 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 (output_bfd != (bfd *) NULL) |
| relocateable = true; |
| else |
| { |
| relocateable = false; |
| output_bfd = symbol->section->output_section->owner; |
| } |
| |
| ret = mips_elf_final_gp (output_bfd, symbol, relocateable, error_message, |
| &gp); |
| if (ret != bfd_reloc_ok) |
| return ret; |
| |
| return gprel16_with_gp (abfd, symbol, reloc_entry, input_section, |
| relocateable, data, gp); |
| } |
| |
| static bfd_reloc_status_type |
| gprel16_with_gp (abfd, symbol, reloc_entry, input_section, relocateable, data, |
| gp) |
| bfd *abfd; |
| asymbol *symbol; |
| arelent *reloc_entry; |
| asection *input_section; |
| boolean relocateable; |
| PTR data; |
| bfd_vma gp; |
| { |
| bfd_vma relocation; |
| unsigned long insn; |
| unsigned long val; |
| |
| if (bfd_is_com_section (symbol->section)) |
| relocation = 0; |
| else |
| relocation = symbol->value; |
| |
| relocation += symbol->section->output_section->vma; |
| relocation += symbol->section->output_offset; |
| |
| if (reloc_entry->address > input_section->_cooked_size) |
| return bfd_reloc_outofrange; |
| |
| insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); |
| |
| /* Set val to the offset into the section or symbol. */ |
| if (reloc_entry->howto->src_mask == 0) |
| { |
| /* This case occurs with the 64-bit MIPS ELF ABI. */ |
| val = reloc_entry->addend; |
| } |
| else |
| { |
| val = ((insn & 0xffff) + reloc_entry->addend) & 0xffff; |
| if (val & 0x8000) |
| val -= 0x10000; |
| } |
| |
| /* Adjust val for the final section location and GP value. If we |
| are producing relocateable output, we don't want to do this for |
| an external symbol. */ |
| if (! relocateable |
| || (symbol->flags & BSF_SECTION_SYM) != 0) |
| val += relocation - gp; |
| |
| insn = (insn & ~0xffff) | (val & 0xffff); |
| bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); |
| |
| if (relocateable) |
| reloc_entry->address += input_section->output_offset; |
| |
| /* Make sure it fit in 16 bits. */ |
| if ((long) val >= 0x8000 || (long) val < -0x8000) |
| return bfd_reloc_overflow; |
| |
| return bfd_reloc_ok; |
| } |
| |
| /* Do a R_MIPS_GPREL32 relocation. Is this 32 bit value the offset |
| from the gp register? XXX */ |
| |
| static bfd_reloc_status_type gprel32_with_gp PARAMS ((bfd *, asymbol *, |
| arelent *, asection *, |
| boolean, PTR, bfd_vma)); |
| |
| bfd_reloc_status_type |
| _bfd_mips_elf_gprel32_reloc (abfd, |
| reloc_entry, |
| symbol, |
| data, |
| input_section, |
| output_bfd, |
| error_message) |
| bfd *abfd; |
| arelent *reloc_entry; |
| asymbol *symbol; |
| PTR data; |
| asection *input_section; |
| bfd *output_bfd; |
| char **error_message; |
| { |
| boolean relocateable; |
| bfd_reloc_status_type ret; |
| bfd_vma gp; |
| |
| /* If we're relocating, and this is an external symbol with no |
| addend, we don't want to change anything. We will only have an |
| addend if this is a newly created reloc, not read from an ELF |
| file. */ |
| if (output_bfd != (bfd *) NULL |
| && (symbol->flags & BSF_SECTION_SYM) == 0 |
| && reloc_entry->addend == 0) |
| { |
| *error_message = (char *) |
| _("32bits gp relative relocation occurs for an external symbol"); |
| return bfd_reloc_outofrange; |
| } |
| |
| if (output_bfd != (bfd *) NULL) |
| { |
| relocateable = true; |
| gp = _bfd_get_gp_value (output_bfd); |
| } |
| else |
| { |
| relocateable = false; |
| output_bfd = symbol->section->output_section->owner; |
| |
| ret = mips_elf_final_gp (output_bfd, symbol, relocateable, |
| error_message, &gp); |
| if (ret != bfd_reloc_ok) |
| return ret; |
| } |
| |
| return gprel32_with_gp (abfd, symbol, reloc_entry, input_section, |
| relocateable, data, gp); |
| } |
| |
| static bfd_reloc_status_type |
| gprel32_with_gp (abfd, symbol, reloc_entry, input_section, relocateable, data, |
| gp) |
| bfd *abfd; |
| asymbol *symbol; |
| arelent *reloc_entry; |
| asection *input_section; |
| boolean relocateable; |
| PTR data; |
| bfd_vma gp; |
| { |
| bfd_vma relocation; |
| unsigned long val; |
| |
| if (bfd_is_com_section (symbol->section)) |
| relocation = 0; |
| else |
| relocation = symbol->value; |
| |
| relocation += symbol->section->output_section->vma; |
| relocation += symbol->section->output_offset; |
| |
| if (reloc_entry->address > input_section->_cooked_size) |
| return bfd_reloc_outofrange; |
| |
| if (reloc_entry->howto->src_mask == 0) |
| { |
| /* This case arises with the 64-bit MIPS ELF ABI. */ |
| val = 0; |
| } |
| else |
| val = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); |
| |
| /* Set val to the offset into the section or symbol. */ |
| val += reloc_entry->addend; |
| |
| /* Adjust val for the final section location and GP value. If we |
| are producing relocateable output, we don't want to do this for |
| an external symbol. */ |
| if (! relocateable |
| || (symbol->flags & BSF_SECTION_SYM) != 0) |
| val += relocation - gp; |
| |
| bfd_put_32 (abfd, val, (bfd_byte *) data + reloc_entry->address); |
| |
| if (relocateable) |
| reloc_entry->address += input_section->output_offset; |
| |
| return bfd_reloc_ok; |
| } |
| |
| /* Handle a 64 bit reloc in a 32 bit MIPS ELF file. These are |
| generated when addresses are 64 bits. The upper 32 bits are a simple |
| sign extension. */ |
| |
| static bfd_reloc_status_type |
| mips32_64bit_reloc (abfd, reloc_entry, symbol, data, input_section, |
| output_bfd, error_message) |
| bfd *abfd; |
| arelent *reloc_entry; |
| asymbol *symbol; |
| PTR data; |
| asection *input_section; |
| bfd *output_bfd; |
| char **error_message; |
| { |
| bfd_reloc_status_type r; |
| arelent reloc32; |
| unsigned long val; |
| bfd_size_type addr; |
| |
| r = bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| input_section, output_bfd, error_message); |
| if (r != bfd_reloc_continue) |
| return r; |
| |
| /* Do a normal 32 bit relocation on the lower 32 bits. */ |
| reloc32 = *reloc_entry; |
| if (bfd_big_endian (abfd)) |
| reloc32.address += 4; |
| reloc32.howto = &elf_mips_howto_table[R_MIPS_32]; |
| r = bfd_perform_relocation (abfd, &reloc32, data, input_section, |
| output_bfd, error_message); |
| |
| /* Sign extend into the upper 32 bits. */ |
| val = bfd_get_32 (abfd, (bfd_byte *) data + reloc32.address); |
| if ((val & 0x80000000) != 0) |
| val = 0xffffffff; |
| else |
| val = 0; |
| addr = reloc_entry->address; |
| if (bfd_little_endian (abfd)) |
| addr += 4; |
| bfd_put_32 (abfd, val, (bfd_byte *) data + addr); |
| |
| return r; |
| } |
| |
| /* Handle a mips16 jump. */ |
| |
| static bfd_reloc_status_type |
| mips16_jump_reloc (abfd, reloc_entry, symbol, data, input_section, |
| output_bfd, error_message) |
| bfd *abfd ATTRIBUTE_UNUSED; |
| arelent *reloc_entry; |
| asymbol *symbol; |
| PTR data ATTRIBUTE_UNUSED; |
| asection *input_section; |
| bfd *output_bfd; |
| char **error_message ATTRIBUTE_UNUSED; |
| { |
| 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; |
| } |
| |
| /* FIXME. */ |
| { |
| static boolean warned; |
| |
| if (! warned) |
| (*_bfd_error_handler) |
| (_("Linking mips16 objects into %s format is not supported"), |
| bfd_get_target (input_section->output_section->owner)); |
| warned = true; |
| } |
| |
| return bfd_reloc_undefined; |
| } |
| |
| /* Handle a mips16 GP relative reloc. */ |
| |
| static bfd_reloc_status_type |
| mips16_gprel_reloc (abfd, reloc_entry, symbol, data, input_section, |
| output_bfd, error_message) |
| bfd *abfd; |
| arelent *reloc_entry; |
| asymbol *symbol; |
| PTR data; |
| asection *input_section; |
| bfd *output_bfd; |
| char **error_message; |
| { |
| boolean relocateable; |
| bfd_reloc_status_type ret; |
| bfd_vma gp; |
| unsigned short extend, insn; |
| unsigned long final; |
| |
| /* If we're relocating, and this is an external symbol with no |
| addend, we don't want to change anything. We will only have an |
| addend if this is a newly created reloc, not read from an ELF |
| file. */ |
| if (output_bfd != NULL |
| && (symbol->flags & BSF_SECTION_SYM) == 0 |
| && reloc_entry->addend == 0) |
| { |
| reloc_entry->address += input_section->output_offset; |
| return bfd_reloc_ok; |
| } |
| |
| if (output_bfd != NULL) |
| relocateable = true; |
| else |
| { |
| relocateable = false; |
| output_bfd = symbol->section->output_section->owner; |
| } |
| |
| ret = mips_elf_final_gp (output_bfd, symbol, relocateable, error_message, |
| &gp); |
| if (ret != bfd_reloc_ok) |
| return ret; |
| |
| if (reloc_entry->address > input_section->_cooked_size) |
| return bfd_reloc_outofrange; |
| |
| /* Pick up the mips16 extend instruction and the real instruction. */ |
| extend = bfd_get_16 (abfd, (bfd_byte *) data + reloc_entry->address); |
| insn = bfd_get_16 (abfd, (bfd_byte *) data + reloc_entry->address + 2); |
| |
| /* Stuff the current addend back as a 32 bit value, do the usual |
| relocation, and then clean up. */ |
| bfd_put_32 (abfd, |
| (((extend & 0x1f) << 11) |
| | (extend & 0x7e0) |
| | (insn & 0x1f)), |
| (bfd_byte *) data + reloc_entry->address); |
| |
| ret = gprel16_with_gp (abfd, symbol, reloc_entry, input_section, |
| relocateable, data, gp); |
| |
| final = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); |
| bfd_put_16 (abfd, |
| ((extend & 0xf800) |
| | ((final >> 11) & 0x1f) |
| | (final & 0x7e0)), |
| (bfd_byte *) data + reloc_entry->address); |
| bfd_put_16 (abfd, |
| ((insn & 0xffe0) |
| | (final & 0x1f)), |
| (bfd_byte *) data + reloc_entry->address + 2); |
| |
| return ret; |
| } |
| |
| /* Return the ISA for a MIPS e_flags value. */ |
| |
| static INLINE int |
| elf_mips_isa (flags) |
| flagword flags; |
| { |
| switch (flags & EF_MIPS_ARCH) |
| { |
| case E_MIPS_ARCH_1: |
| return 1; |
| case E_MIPS_ARCH_2: |
| return 2; |
| case E_MIPS_ARCH_3: |
| return 3; |
| case E_MIPS_ARCH_4: |
| return 4; |
| case E_MIPS_ARCH_5: |
| return 5; |
| case E_MIPS_ARCH_32: |
| return 32; |
| case E_MIPS_ARCH_64: |
| return 64; |
| } |
| return 4; |
| } |
| |
| /* Return the MACH for a MIPS e_flags value. */ |
| |
| static INLINE int |
| elf_mips_mach (flags) |
| flagword flags; |
| { |
| switch (flags & EF_MIPS_MACH) |
| { |
| case E_MIPS_MACH_3900: |
| return bfd_mach_mips3900; |
| |
| case E_MIPS_MACH_4010: |
| return bfd_mach_mips4010; |
| |
| case E_MIPS_MACH_4100: |
| return bfd_mach_mips4100; |
| |
| case E_MIPS_MACH_4111: |
| return bfd_mach_mips4111; |
| |
| case E_MIPS_MACH_4650: |
| return bfd_mach_mips4650; |
| |
| case E_MIPS_MACH_MIPS32_4K: |
| return bfd_mach_mips32_4k; |
| |
| case E_MIPS_MACH_SB1: |
| return bfd_mach_mips_sb1; |
| |
| default: |
| switch (flags & EF_MIPS_ARCH) |
| { |
| default: |
| case E_MIPS_ARCH_1: |
| return bfd_mach_mips3000; |
| break; |
| |
| case E_MIPS_ARCH_2: |
| return bfd_mach_mips6000; |
| break; |
| |
| case E_MIPS_ARCH_3: |
| return bfd_mach_mips4000; |
| break; |
| |
| case E_MIPS_ARCH_4: |
| return bfd_mach_mips8000; |
| break; |
| |
| case E_MIPS_ARCH_5: |
| return bfd_mach_mips5; |
| break; |
| |
| case E_MIPS_ARCH_32: |
| return bfd_mach_mips32; |
| break; |
| |
| case E_MIPS_ARCH_64: |
| return bfd_mach_mips64; |
| break; |
| } |
| } |
| |
| return 0; |
| } |
| |
| /* Return printable name for ABI. */ |
| |
| static INLINE char * |
| elf_mips_abi_name (abfd) |
| bfd *abfd; |
| { |
| flagword flags; |
| |
| if (ABI_N32_P (abfd)) |
| return "N32"; |
| else if (ABI_64_P (abfd)) |
| return "64"; |
| |
| flags = elf_elfheader (abfd)->e_flags; |
| switch (flags & EF_MIPS_ABI) |
| { |
| case 0: |
| return "none"; |
| case E_MIPS_ABI_O32: |
| return "O32"; |
| case E_MIPS_ABI_O64: |
| return "O64"; |
| case E_MIPS_ABI_EABI32: |
| return "EABI32"; |
| case E_MIPS_ABI_EABI64: |
| return "EABI64"; |
| default: |
| return "unknown abi"; |
| } |
| } |
| |
| /* A mapping from BFD reloc types to MIPS ELF reloc types. */ |
| |
| struct elf_reloc_map { |
| bfd_reloc_code_real_type bfd_reloc_val; |
| enum elf_mips_reloc_type elf_reloc_val; |
| }; |
| |
| static CONST struct elf_reloc_map mips_reloc_map[] = |
| { |
| { BFD_RELOC_NONE, R_MIPS_NONE, }, |
| { BFD_RELOC_16, R_MIPS_16 }, |
| { BFD_RELOC_32, R_MIPS_32 }, |
| { BFD_RELOC_64, R_MIPS_64 }, |
| { BFD_RELOC_MIPS_JMP, R_MIPS_26 }, |
| { BFD_RELOC_HI16_S, R_MIPS_HI16 }, |
| { BFD_RELOC_LO16, R_MIPS_LO16 }, |
| { BFD_RELOC_MIPS_GPREL, R_MIPS_GPREL16 }, |
| { BFD_RELOC_MIPS_LITERAL, R_MIPS_LITERAL }, |
| { BFD_RELOC_MIPS_GOT16, R_MIPS_GOT16 }, |
| { BFD_RELOC_16_PCREL, R_MIPS_PC16 }, |
| { BFD_RELOC_MIPS_CALL16, R_MIPS_CALL16 }, |
| { BFD_RELOC_MIPS_GPREL32, R_MIPS_GPREL32 }, |
| { BFD_RELOC_MIPS_GOT_HI16, R_MIPS_GOT_HI16 }, |
| { BFD_RELOC_MIPS_GOT_LO16, R_MIPS_GOT_LO16 }, |
| { BFD_RELOC_MIPS_CALL_HI16, R_MIPS_CALL_HI16 }, |
| { BFD_RELOC_MIPS_CALL_LO16, R_MIPS_CALL_LO16 }, |
| { BFD_RELOC_MIPS_SUB, R_MIPS_SUB }, |
| { 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 } |
| }; |
| |
| /* Given a BFD reloc type, return a howto structure. */ |
| |
| static reloc_howto_type * |
| bfd_elf32_bfd_reloc_type_lookup (abfd, code) |
| bfd *abfd; |
| bfd_reloc_code_real_type code; |
| { |
| unsigned int i; |
| |
| for (i = 0; i < sizeof (mips_reloc_map) / sizeof (struct elf_reloc_map); i++) |
| { |
| if (mips_reloc_map[i].bfd_reloc_val == code) |
| return &elf_mips_howto_table[(int) mips_reloc_map[i].elf_reloc_val]; |
| } |
| |
| switch (code) |
| { |
| default: |
| bfd_set_error (bfd_error_bad_value); |
| return NULL; |
| |
| case BFD_RELOC_CTOR: |
| /* We need to handle BFD_RELOC_CTOR specially. |
| Select the right relocation (R_MIPS_32 or R_MIPS_64) based on the |
| size of addresses on this architecture. */ |
| if (bfd_arch_bits_per_address (abfd) == 32) |
| return &elf_mips_howto_table[(int) R_MIPS_32]; |
| else |
| return &elf_mips_ctor64_howto; |
| |
| case BFD_RELOC_MIPS16_JMP: |
| return &elf_mips16_jump_howto; |
| case BFD_RELOC_MIPS16_GPREL: |
| return &elf_mips16_gprel_howto; |
| case BFD_RELOC_VTABLE_INHERIT: |
| return &elf_mips_gnu_vtinherit_howto; |
| case BFD_RELOC_VTABLE_ENTRY: |
| return &elf_mips_gnu_vtentry_howto; |
| case BFD_RELOC_PCREL_HI16_S: |
| return &elf_mips_gnu_rel_hi16; |
| case BFD_RELOC_PCREL_LO16: |
| return &elf_mips_gnu_rel_lo16; |
| case BFD_RELOC_16_PCREL_S2: |
| return &elf_mips_gnu_rel16_s2; |
| case BFD_RELOC_64_PCREL: |
| return &elf_mips_gnu_pcrel64; |
| case BFD_RELOC_32_PCREL: |
| return &elf_mips_gnu_pcrel32; |
| } |
| } |
| |
| /* Given a MIPS Elf32_Internal_Rel, fill in an arelent structure. */ |
| |
| static reloc_howto_type * |
| mips_rtype_to_howto (r_type) |
| unsigned int r_type; |
| { |
| switch (r_type) |
| { |
| case R_MIPS16_26: |
| return &elf_mips16_jump_howto; |
| break; |
| case R_MIPS16_GPREL: |
| return &elf_mips16_gprel_howto; |
| break; |
| case R_MIPS_GNU_VTINHERIT: |
| return &elf_mips_gnu_vtinherit_howto; |
| break; |
| case R_MIPS_GNU_VTENTRY: |
| return &elf_mips_gnu_vtentry_howto; |
| break; |
| case R_MIPS_GNU_REL_HI16: |
| return &elf_mips_gnu_rel_hi16; |
| break; |
| case R_MIPS_GNU_REL_LO16: |
| return &elf_mips_gnu_rel_lo16; |
| break; |
| case R_MIPS_GNU_REL16_S2: |
| return &elf_mips_gnu_rel16_s2; |
| break; |
| case R_MIPS_PC64: |
| return &elf_mips_gnu_pcrel64; |
| break; |
| case R_MIPS_PC32: |
| return &elf_mips_gnu_pcrel32; |
| break; |
| |
| default: |
| BFD_ASSERT (r_type < (unsigned int) R_MIPS_max); |
| return &elf_mips_howto_table[r_type]; |
| break; |
| } |
| } |
| |
| /* Given a MIPS Elf32_Internal_Rel, fill in an arelent structure. */ |
| |
| static void |
| mips_info_to_howto_rel (abfd, cache_ptr, dst) |
| bfd *abfd; |
| arelent *cache_ptr; |
| Elf32_Internal_Rel *dst; |
| { |
| unsigned int r_type; |
| |
| r_type = ELF32_R_TYPE (dst->r_info); |
| cache_ptr->howto = mips_rtype_to_howto (r_type); |
| |
| /* The addend for a GPREL16 or LITERAL relocation comes from the GP |
| value for the object file. We get the addend now, rather than |
| when we do the relocation, because the symbol manipulations done |
| by the linker may cause us to lose track of the input BFD. */ |
| if (((*cache_ptr->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0 |
| && (r_type == (unsigned int) R_MIPS_GPREL16 |
| || r_type == (unsigned int) R_MIPS_LITERAL)) |
| cache_ptr->addend = elf_gp (abfd); |
| } |
| |
| /* Given a MIPS Elf32_Internal_Rela, fill in an arelent structure. */ |
| |
| static void |
| mips_info_to_howto_rela (abfd, cache_ptr, dst) |
| bfd *abfd; |
| arelent *cache_ptr; |
| Elf32_Internal_Rela *dst; |
| { |
| /* Since an Elf32_Internal_Rel is an initial prefix of an |
| Elf32_Internal_Rela, we can just use mips_info_to_howto_rel |
| above. */ |
| mips_info_to_howto_rel (abfd, cache_ptr, (Elf32_Internal_Rel *) dst); |
| |
| /* If we ever need to do any extra processing with dst->r_addend |
| (the field omitted in an Elf32_Internal_Rel) we can do it here. */ |
| } |
| |
| /* A .reginfo section holds a single Elf32_RegInfo structure. These |
| routines swap this structure in and out. They are used outside of |
| BFD, so they are globally visible. */ |
| |
| void |
| bfd_mips_elf32_swap_reginfo_in (abfd, ex, in) |
| bfd *abfd; |
| const Elf32_External_RegInfo *ex; |
| Elf32_RegInfo *in; |
| { |
| in->ri_gprmask = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_gprmask); |
| in->ri_cprmask[0] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[0]); |
| in->ri_cprmask[1] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[1]); |
| in->ri_cprmask[2] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[2]); |
| in->ri_cprmask[3] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[3]); |
| in->ri_gp_value = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_gp_value); |
| } |
| |
| void |
| bfd_mips_elf32_swap_reginfo_out (abfd, in, ex) |
| bfd *abfd; |
| const Elf32_RegInfo *in; |
| Elf32_External_RegInfo *ex; |
| { |
| bfd_h_put_32 (abfd, (bfd_vma) in->ri_gprmask, |
| (bfd_byte *) ex->ri_gprmask); |
| bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[0], |
| (bfd_byte *) ex->ri_cprmask[0]); |
| bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[1], |
| (bfd_byte *) ex->ri_cprmask[1]); |
| bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[2], |
| (bfd_byte *) ex->ri_cprmask[2]); |
| bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[3], |
| (bfd_byte *) ex->ri_cprmask[3]); |
| bfd_h_put_32 (abfd, (bfd_vma) in->ri_gp_value, |
| (bfd_byte *) ex->ri_gp_value); |
| } |
| |
| /* In the 64 bit ABI, the .MIPS.options section holds register |
| information in an Elf64_Reginfo structure. These routines swap |
| them in and out. They are globally visible because they are used |
| outside of BFD. These routines are here so that gas can call them |
| without worrying about whether the 64 bit ABI has been included. */ |
| |
| void |
| bfd_mips_elf64_swap_reginfo_in (abfd, ex, in) |
| bfd *abfd; |
| const Elf64_External_RegInfo *ex; |
| Elf64_Internal_RegInfo *in; |
| { |
| in->ri_gprmask = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_gprmask); |
| in->ri_pad = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_pad); |
| in->ri_cprmask[0] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[0]); |
| in->ri_cprmask[1] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[1]); |
| in->ri_cprmask[2] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[2]); |
| in->ri_cprmask[3] = bfd_h_get_32 (abfd, (bfd_byte *) ex->ri_cprmask[3]); |
| in->ri_gp_value = bfd_h_get_64 (abfd, (bfd_byte *) ex->ri_gp_value); |
| } |
| |
| void |
| bfd_mips_elf64_swap_reginfo_out (abfd, in, ex) |
| bfd *abfd; |
| const Elf64_Internal_RegInfo *in; |
| Elf64_External_RegInfo *ex; |
| { |
| bfd_h_put_32 (abfd, (bfd_vma) in->ri_gprmask, |
| (bfd_byte *) ex->ri_gprmask); |
| bfd_h_put_32 (abfd, (bfd_vma) in->ri_pad, |
| (bfd_byte *) ex->ri_pad); |
| bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[0], |
| (bfd_byte *) ex->ri_cprmask[0]); |
| bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[1], |
| (bfd_byte *) ex->ri_cprmask[1]); |
| bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[2], |
| (bfd_byte *) ex->ri_cprmask[2]); |
| bfd_h_put_32 (abfd, (bfd_vma) in->ri_cprmask[3], |
| (bfd_byte *) ex->ri_cprmask[3]); |
| bfd_h_put_64 (abfd, (bfd_vma) in->ri_gp_value, |
| (bfd_byte *) ex->ri_gp_value); |
| } |
| |
| /* Swap an entry in a .gptab section. Note that these routines rely |
| on the equivalence of the two elements of the union. */ |
| |
| static void |
| bfd_mips_elf32_swap_gptab_in (abfd, ex, in) |
| bfd *abfd; |
| const Elf32_External_gptab *ex; |
| Elf32_gptab *in; |
| { |
| in->gt_entry.gt_g_value = bfd_h_get_32 (abfd, ex->gt_entry.gt_g_value); |
| in->gt_entry.gt_bytes = bfd_h_get_32 (abfd, ex->gt_entry.gt_bytes); |
| } |
| |
| static void |
| bfd_mips_elf32_swap_gptab_out (abfd, in, ex) |
| bfd *abfd; |
| const Elf32_gptab *in; |
| Elf32_External_gptab *ex; |
| { |
| bfd_h_put_32 (abfd, (bfd_vma) in->gt_entry.gt_g_value, |
| ex->gt_entry.gt_g_value); |
| bfd_h_put_32 (abfd, (bfd_vma) in->gt_entry.gt_bytes, |
| ex->gt_entry.gt_bytes); |
| } |
| |
| static void |
| bfd_elf32_swap_compact_rel_out (abfd, in, ex) |
| bfd *abfd; |
| const Elf32_compact_rel *in; |
| Elf32_External_compact_rel *ex; |
| { |
| bfd_h_put_32 (abfd, (bfd_vma) in->id1, ex->id1); |
| bfd_h_put_32 (abfd, (bfd_vma) in->num, ex->num); |
| bfd_h_put_32 (abfd, (bfd_vma) in->id2, ex->id2); |
| bfd_h_put_32 (abfd, (bfd_vma) in->offset, ex->offset); |
| bfd_h_put_32 (abfd, (bfd_vma) in->reserved0, ex->reserved0); |
| bfd_h_put_32 (abfd, (bfd_vma) in->reserved1, ex->reserved1); |
| } |
| |
| static void |
| bfd_elf32_swap_crinfo_out (abfd, in, ex) |
| bfd *abfd; |
| const Elf32_crinfo *in; |
| Elf32_External_crinfo *ex; |
| { |
| unsigned long l; |
| |
| l = (((in->ctype & CRINFO_CTYPE) << CRINFO_CTYPE_SH) |
| | ((in->rtype & CRINFO_RTYPE) << CRINFO_RTYPE_SH) |
| | ((in->dist2to & CRINFO_DIST2TO) << CRINFO_DIST2TO_SH) |
| | ((in->relvaddr & CRINFO_RELVADDR) << CRINFO_RELVADDR_SH)); |
| bfd_h_put_32 (abfd, (bfd_vma) l, ex->info); |
| bfd_h_put_32 (abfd, (bfd_vma) in->konst, ex->konst); |
| bfd_h_put_32 (abfd, (bfd_vma) in->vaddr, ex->vaddr); |
| } |
| |
| /* Swap in an options header. */ |
| |
| void |
| bfd_mips_elf_swap_options_in (abfd, ex, in) |
| bfd *abfd; |
| const Elf_External_Options *ex; |
| Elf_Internal_Options *in; |
| { |
| in->kind = bfd_h_get_8 (abfd, ex->kind); |
| in->size = bfd_h_get_8 (abfd, ex->size); |
| in->section = bfd_h_get_16 (abfd, ex->section); |
| in->info = bfd_h_get_32 (abfd, ex->info); |
| } |
| |
| /* Swap out an options header. */ |
| |
| void |
| bfd_mips_elf_swap_options_out (abfd, in, ex) |
| bfd *abfd; |
| const Elf_Internal_Options *in; |
| Elf_External_Options *ex; |
| { |
| bfd_h_put_8 (abfd, in->kind, ex->kind); |
| bfd_h_put_8 (abfd, in->size, ex->size); |
| bfd_h_put_16 (abfd, in->section, ex->section); |
| bfd_h_put_32 (abfd, in->info, ex->info); |
| } |
| #if 0 |
| /* Swap in an MSYM entry. */ |
| |
| static void |
| bfd_mips_elf_swap_msym_in (abfd, ex, in) |
| bfd *abfd; |
| const Elf32_External_Msym *ex; |
| Elf32_Internal_Msym *in; |
| { |
| in->ms_hash_value = bfd_h_get_32 (abfd, ex->ms_hash_value); |
| in->ms_info = bfd_h_get_32 (abfd, ex->ms_info); |
| } |
| #endif |
| /* Swap out an MSYM entry. */ |
| |
| static void |
| bfd_mips_elf_swap_msym_out (abfd, in, ex) |
| bfd *abfd; |
| const Elf32_Internal_Msym *in; |
| Elf32_External_Msym *ex; |
| { |
| bfd_h_put_32 (abfd, in->ms_hash_value, ex->ms_hash_value); |
| bfd_h_put_32 (abfd, in->ms_info, ex->ms_info); |
| } |
| |
| /* Determine whether a symbol is global for the purposes of splitting |
| the symbol table into global symbols and local symbols. At least |
| on Irix 5, this split must be between section symbols and all other |
| symbols. On most ELF targets the split is between static symbols |
| and externally visible symbols. */ |
| |
| static boolean |
| mips_elf_sym_is_global (abfd, sym) |
| bfd *abfd ATTRIBUTE_UNUSED; |
| asymbol *sym; |
| { |
| if (SGI_COMPAT(abfd)) |
| return (sym->flags & BSF_SECTION_SYM) == 0 ? true : false; |
| else |
| return ((sym->flags & (BSF_GLOBAL | BSF_WEAK)) != 0 |
| || bfd_is_und_section (bfd_get_section (sym)) |
| || bfd_is_com_section (bfd_get_section (sym))); |
| } |
| |
| /* Set the right machine number for a MIPS ELF file. This is used for |
| both the 32-bit and the 64-bit ABI. */ |
| |
| boolean |
| _bfd_mips_elf_object_p (abfd) |
| bfd *abfd; |
| { |
| /* Irix 5 and 6 is broken. Object file symbol tables are not always |
| sorted correctly such that local symbols precede global symbols, |
| and the sh_info field in the symbol table is not always right. */ |
| elf_bad_symtab (abfd) = true; |
| |
| bfd_default_set_arch_mach (abfd, bfd_arch_mips, |
| elf_mips_mach (elf_elfheader (abfd)->e_flags)); |
| return true; |
| } |
| |
| /* The final processing done just before writing out a MIPS ELF object |
| file. This gets the MIPS architecture right based on the machine |
| number. This is used by both the 32-bit and the 64-bit ABI. */ |
| |
| void |
| _bfd_mips_elf_final_write_processing (abfd, linker) |
| bfd *abfd; |
| boolean linker ATTRIBUTE_UNUSED; |
| { |
| unsigned long val; |
| unsigned int i; |
| Elf_Internal_Shdr **hdrpp; |
| const char *name; |
| asection *sec; |
| |
| switch (bfd_get_mach (abfd)) |
| { |
| default: |
| case bfd_mach_mips3000: |
| val = E_MIPS_ARCH_1; |
| break; |
| |
| case bfd_mach_mips3900: |
| val = E_MIPS_ARCH_1 | E_MIPS_MACH_3900; |
| break; |
| |
| case bfd_mach_mips6000: |
| val = E_MIPS_ARCH_2; |
| break; |
| |
| case bfd_mach_mips4000: |
| case bfd_mach_mips4300: |
| val = E_MIPS_ARCH_3; |
| break; |
| |
| case bfd_mach_mips4010: |
| val = E_MIPS_ARCH_3 | E_MIPS_MACH_4010; |
| break; |
| |
| case bfd_mach_mips4100: |
| val = E_MIPS_ARCH_3 | E_MIPS_MACH_4100; |
| break; |
| |
| case bfd_mach_mips4111: |
| val = E_MIPS_ARCH_3 | E_MIPS_MACH_4111; |
| break; |
| |
| case bfd_mach_mips4650: |
| val = E_MIPS_ARCH_3 | E_MIPS_MACH_4650; |
| break; |
| |
| case bfd_mach_mips8000: |
| case bfd_mach_mips10000: |
| case bfd_mach_mips12000: |
| val = E_MIPS_ARCH_4; |
| break; |
| |
| case bfd_mach_mips32: |
| val = E_MIPS_ARCH_32; |
| break; |
| |
| case bfd_mach_mips32_4k: |
| val = E_MIPS_ARCH_32 | E_MIPS_MACH_MIPS32_4K; |
| break; |
| |
| case bfd_mach_mips5: |
| val = E_MIPS_ARCH_5; |
| break; |
| |
| case bfd_mach_mips64: |
| val = E_MIPS_ARCH_64; |
| break; |
| |
| case bfd_mach_mips_sb1: |
| val = E_MIPS_ARCH_64 | E_MIPS_MACH_SB1; |
| break; |
| } |
| |
| elf_elfheader (abfd)->e_flags &= ~(EF_MIPS_ARCH | EF_MIPS_MACH); |
| elf_elfheader (abfd)->e_flags |= val; |
| |
| /* Set the sh_info field for .gptab sections and other appropriate |
| info for each special section. */ |
| for (i = 1, hdrpp = elf_elfsections (abfd) + 1; |
| i < elf_elfheader (abfd)->e_shnum; |
| i++, hdrpp++) |
| { |
| switch ((*hdrpp)->sh_type) |
| { |
| case SHT_MIPS_MSYM: |
| case SHT_MIPS_LIBLIST: |
| sec = bfd_get_section_by_name (abfd, ".dynstr"); |
| if (sec != NULL) |
| (*hdrpp)->sh_link = elf_section_data (sec)->this_idx; |
| break; |
| |
| case SHT_MIPS_GPTAB: |
| BFD_ASSERT ((*hdrpp)->bfd_section != NULL); |
| name = bfd_get_section_name (abfd, (*hdrpp)->bfd_section); |
| BFD_ASSERT (name != NULL |
| && strncmp (name, ".gptab.", sizeof ".gptab." - 1) == 0); |
| sec = bfd_get_section_by_name (abfd, name + sizeof ".gptab" - 1); |
| BFD_ASSERT (sec != NULL); |
| (*hdrpp)->sh_info = elf_section_data (sec)->this_idx; |
| break; |
| |
| case SHT_MIPS_CONTENT: |
| BFD_ASSERT ((*hdrpp)->bfd_section != NULL); |
| name = bfd_get_section_name (abfd, (*hdrpp)->bfd_section); |
| BFD_ASSERT (name != NULL |
| && strncmp (name, ".MIPS.content", |
| sizeof ".MIPS.content" - 1) == 0); |
| sec = bfd_get_section_by_name (abfd, |
| name + sizeof ".MIPS.content" - 1); |
| BFD_ASSERT (sec != NULL); |
| (*hdrpp)->sh_link = elf_section_data (sec)->this_idx; |
| break; |
| |
| case SHT_MIPS_SYMBOL_LIB: |
| sec = bfd_get_section_by_name (abfd, ".dynsym"); |
| if (sec != NULL) |
| (*hdrpp)->sh_link = elf_section_data (sec)->this_idx; |
| sec = bfd_get_section_by_name (abfd, ".liblist"); |
| if (sec != NULL) |
| (*hdrpp)->sh_info = elf_section_data (sec)->this_idx; |
| break; |
| |
| case SHT_MIPS_EVENTS: |
| BFD_ASSERT ((*hdrpp)->bfd_section != NULL); |
| name = bfd_get_section_name (abfd, (*hdrpp)->bfd_section); |
| BFD_ASSERT (name != NULL); |
| if (strncmp (name, ".MIPS.events", sizeof ".MIPS.events" - 1) == 0) |
| sec = bfd_get_section_by_name (abfd, |
| name + sizeof ".MIPS.events" - 1); |
| else |
| { |
| BFD_ASSERT (strncmp (name, ".MIPS.post_rel", |
| sizeof ".MIPS.post_rel" - 1) == 0); |
| sec = bfd_get_section_by_name (abfd, |
| (name |
| + sizeof ".MIPS.post_rel" - 1)); |
| } |
| BFD_ASSERT (sec != NULL); |
| (*hdrpp)->sh_link = elf_section_data (sec)->this_idx; |
| break; |
| |
| } |
| } |
| } |
| |
| /* Function to keep MIPS specific file flags like as EF_MIPS_PIC. */ |
| |
| boolean |
| _bfd_mips_elf_set_private_flags (abfd, flags) |
| bfd *abfd; |
| flagword flags; |
| { |
| BFD_ASSERT (!elf_flags_init (abfd) |
| || elf_elfheader (abfd)->e_flags == flags); |
| |
| elf_elfheader (abfd)->e_flags = flags; |
| elf_flags_init (abfd) = true; |
| return true; |
| } |
| |
| /* Copy backend specific data from one object module to another */ |
| |
| boolean |
| _bfd_mips_elf_copy_private_bfd_data (ibfd, obfd) |
| 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_gp (obfd) = elf_gp (ibfd); |
| elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; |
| elf_flags_init (obfd) = true; |
| return true; |
| } |
| |
| /* Merge backend specific data from an object file to the output |
| object file when linking. */ |
| |
| boolean |
| _bfd_mips_elf_merge_private_bfd_data (ibfd, obfd) |
| bfd *ibfd; |
| bfd *obfd; |
| { |
| flagword old_flags; |
| flagword new_flags; |
| boolean ok; |
| boolean null_input_bfd = true; |
| asection *sec; |
| |
| /* Check if we have the same endianess */ |
| if (_bfd_generic_verify_endian_match (ibfd, obfd) == false) |
| return false; |
| |
| if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
| || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
| return true; |
| |
| new_flags = elf_elfheader (ibfd)->e_flags; |
| elf_elfheader (obfd)->e_flags |= new_flags & EF_MIPS_NOREORDER; |
| old_flags = elf_elfheader (obfd)->e_flags; |
| |
| if (! elf_flags_init (obfd)) |
| { |
| elf_flags_init (obfd) = true; |
| elf_elfheader (obfd)->e_flags = new_flags; |
| elf_elfheader (obfd)->e_ident[EI_CLASS] |
| = elf_elfheader (ibfd)->e_ident[EI_CLASS]; |
| |
| if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) |
| && bfd_get_arch_info (obfd)->the_default) |
| { |
| if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), |
| bfd_get_mach (ibfd))) |
| return false; |
| } |
| |
| return true; |
| } |
| |
| /* Check flag compatibility. */ |
| |
| new_flags &= ~EF_MIPS_NOREORDER; |
| old_flags &= ~EF_MIPS_NOREORDER; |
| |
| if (new_flags == old_flags) |
| return true; |
| |
| /* Check to see if the input BFD actually contains any sections. |
| If not, its flags may not have been initialised either, but it cannot |
| actually cause any incompatibility. */ |
| for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| { |
| /* Ignore synthetic sections and empty .text, .data and .bss sections |
| which are automatically generated by gas. */ |
| if (strcmp (sec->name, ".reginfo") |
| && strcmp (sec->name, ".mdebug") |
| && ((!strcmp (sec->name, ".text") |
| || !strcmp (sec->name, ".data") |
| || !strcmp (sec->name, ".bss")) |
| && sec->_raw_size != 0)) |
| { |
| null_input_bfd = false; |
| break; |
| } |
| } |
| if (null_input_bfd) |
| return true; |
| |
| ok = true; |
| |
| if ((new_flags & EF_MIPS_PIC) != (old_flags & EF_MIPS_PIC)) |
| { |
| new_flags &= ~EF_MIPS_PIC; |
| old_flags &= ~EF_MIPS_PIC; |
| (*_bfd_error_handler) |
| (_("%s: linking PIC files with non-PIC files"), |
| bfd_get_filename (ibfd)); |
| ok = false; |
| } |
| |
| if ((new_flags & EF_MIPS_CPIC) != (old_flags & EF_MIPS_CPIC)) |
| { |
| new_flags &= ~EF_MIPS_CPIC; |
| old_flags &= ~EF_MIPS_CPIC; |
| (*_bfd_error_handler) |
| (_("%s: linking abicalls files with non-abicalls files"), |
| bfd_get_filename (ibfd)); |
| ok = false; |
| } |
| |
| /* Compare the ISA's. */ |
| if ((new_flags & (EF_MIPS_ARCH | EF_MIPS_MACH)) |
| != (old_flags & (EF_MIPS_ARCH | EF_MIPS_MACH))) |
| { |
| int new_mach = new_flags & EF_MIPS_MACH; |
| int old_mach = old_flags & EF_MIPS_MACH; |
| int new_isa = elf_mips_isa (new_flags); |
| int old_isa = elf_mips_isa (old_flags); |
| |
| /* If either has no machine specified, just compare the general isa's. |
| Some combinations of machines are ok, if the isa's match. */ |
| if (! new_mach |
| || ! old_mach |
| || new_mach == old_mach |
| ) |
| { |
| /* Don't warn about mixing code using 32-bit ISAs, or mixing code |
| using 64-bit ISAs. They will normally use the same data sizes |
| and calling conventions. */ |
| |
| if (( (new_isa == 1 || new_isa == 2 || new_isa == 32) |
| ^ (old_isa == 1 || old_isa == 2 || old_isa == 32)) != 0) |
| { |
| (*_bfd_error_handler) |
| (_("%s: ISA mismatch (-mips%d) with previous modules (-mips%d)"), |
| bfd_get_filename (ibfd), new_isa, old_isa); |
| ok = false; |
| } |
| } |
| |
| else |
| { |
| (*_bfd_error_handler) |
| (_("%s: ISA mismatch (%d) with previous modules (%d)"), |
| bfd_get_filename (ibfd), |
| elf_mips_mach (new_flags), |
| elf_mips_mach (old_flags)); |
| ok = false; |
| } |
| |
| new_flags &= ~(EF_MIPS_ARCH | EF_MIPS_MACH); |
| old_flags &= ~(EF_MIPS_ARCH | EF_MIPS_MACH); |
| } |
| |
| /* Compare ABI's. The 64-bit ABI does not use EF_MIPS_ABI. But, it |
| does set EI_CLASS differently from any 32-bit ABI. */ |
| if ((new_flags & EF_MIPS_ABI) != (old_flags & EF_MIPS_ABI) |
| || (elf_elfheader (ibfd)->e_ident[EI_CLASS] |
| != elf_elfheader (obfd)->e_ident[EI_CLASS])) |
| { |
| /* Only error if both are set (to different values). */ |
| if (((new_flags & EF_MIPS_ABI) && (old_flags & EF_MIPS_ABI)) |
| || (elf_elfheader (ibfd)->e_ident[EI_CLASS] |
| != elf_elfheader (obfd)->e_ident[EI_CLASS])) |
| { |
| (*_bfd_error_handler) |
| (_("%s: ABI mismatch: linking %s module with previous %s modules"), |
| bfd_get_filename (ibfd), |
| elf_mips_abi_name (ibfd), |
| elf_mips_abi_name (obfd)); |
| ok = false; |
| } |
| new_flags &= ~EF_MIPS_ABI; |
| old_flags &= ~EF_MIPS_ABI; |
| } |
| |
| /* Warn about any other mismatches */ |
| if (new_flags != old_flags) |
| { |
| (*_bfd_error_handler) |
| (_("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)"), |
| bfd_get_filename (ibfd), (unsigned long) new_flags, |
| (unsigned long) old_flags); |
| ok = false; |
| } |
| |
| if (! ok) |
| { |
| bfd_set_error (bfd_error_bad_value); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| boolean |
| _bfd_mips_elf_print_private_bfd_data (abfd, ptr) |
| bfd *abfd; |
| PTR ptr; |
| { |
| FILE *file = (FILE *) ptr; |
| |
| BFD_ASSERT (abfd != NULL && ptr != NULL); |
| |
| /* Print normal ELF private data. */ |
| _bfd_elf_print_private_bfd_data (abfd, ptr); |
| |
| /* xgettext:c-format */ |
| fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags); |
| |
| if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI) == E_MIPS_ABI_O32) |
| fprintf (file, _(" [abi=O32]")); |
| else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI) == E_MIPS_ABI_O64) |
| fprintf (file, _(" [abi=O64]")); |
| else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI) == E_MIPS_ABI_EABI32) |
| fprintf (file, _(" [abi=EABI32]")); |
| else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI) == E_MIPS_ABI_EABI64) |
| fprintf (file, _(" [abi=EABI64]")); |
| else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI)) |
| fprintf (file, _(" [abi unknown]")); |
| else if (ABI_N32_P (abfd)) |
| fprintf (file, _(" [abi=N32]")); |
| else if (ABI_64_P (abfd)) |
| fprintf (file, _(" [abi=64]")); |
| else |
| fprintf (file, _(" [no abi set]")); |
| |
| if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_1) |
| fprintf (file, _(" [mips1]")); |
| else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_2) |
| fprintf (file, _(" [mips2]")); |
| else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_3) |
| fprintf (file, _(" [mips3]")); |
| else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_4) |
| fprintf (file, _(" [mips4]")); |
| else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_5) |
| fprintf (file, _ (" [mips5]")); |
| else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_32) |
| fprintf (file, _ (" [mips32]")); |
| else if ((elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_64) |
| fprintf (file, _ (" [mips64]")); |
| else |
| fprintf (file, _(" [unknown ISA]")); |
| |
| if (elf_elfheader (abfd)->e_flags & EF_MIPS_32BITMODE) |
| fprintf (file, _(" [32bitmode]")); |
| else |
| fprintf (file, _(" [not 32bitmode]")); |
| |
| fputc ('\n', file); |
| |
| return true; |
| } |
| |
| /* Handle a MIPS specific section when reading an object file. This |
| is called when elfcode.h finds a section with an unknown type. |
| This routine supports both the 32-bit and 64-bit ELF ABI. |
| |
| FIXME: We need to handle the SHF_MIPS_GPREL flag, but I'm not sure |
| how to. */ |
| |
| boolean |
| _bfd_mips_elf_section_from_shdr (abfd, hdr, name) |
| bfd *abfd; |
| Elf_Internal_Shdr *hdr; |
| char *name; |
| { |
| flagword flags = 0; |
| |
| /* There ought to be a place to keep ELF backend specific flags, but |
| at the moment there isn't one. We just keep track of the |
| sections by their name, instead. Fortunately, the ABI gives |
| suggested names for all the MIPS specific sections, so we will |
| probably get away with this. */ |
| switch (hdr->sh_type) |
| { |
| case SHT_MIPS_LIBLIST: |
| if (strcmp (name, ".liblist") != 0) |
| return false; |
| break; |
| case SHT_MIPS_MSYM: |
| if (strcmp (name, MIPS_ELF_MSYM_SECTION_NAME (abfd)) != 0) |
| return false; |
| break; |
| case SHT_MIPS_CONFLICT: |
| if (strcmp (name, ".conflict") != 0) |
| return false; |
| break; |
| case SHT_MIPS_GPTAB: |
| if (strncmp (name, ".gptab.", sizeof ".gptab." - 1) != 0) |
| return false; |
| break; |
| case SHT_MIPS_UCODE: |
| if (strcmp (name, ".ucode") != 0) |
| return false; |
| break; |
| case SHT_MIPS_DEBUG: |
| if (strcmp (name, ".mdebug") != 0) |
| return false; |
|