/* MIPS-specific support for 32-bit ELF
- Copyright 1993, 94, 95, 96, 97, 1998 Free Software Foundation, Inc.
+ Copyright 1993, 94, 95, 96, 97, 98, 1999 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>
This file is part of BFD, the Binary File Descriptor library.
#define ECOFF_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 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 MIPS_32 or MIPS_REL32 relocs against this symbol. */
+ unsigned int mips_32_relocs;
+
+ /* The index of the first dynamic relocation (in the .rel.dyn
+ section) against this symbol. */
+ unsigned int min_dyn_reloc_index;
+
+ /* 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 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 *));
+static void bfd_mips_elf_swap_msym_in
+ PARAMS ((bfd *, const Elf32_External_Msym *, Elf32_Internal_Msym *));
+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_elf32_object_p PARAMS ((bfd *));
static boolean mips_elf_create_procedure_table
PARAMS ((PTR, bfd *, struct bfd_link_info *, asection *,
struct ecoff_debug_info *));
-static int mips_elf_additional_program_headers PARAMS ((bfd *));
-static boolean mips_elf_modify_segment_map PARAMS ((bfd *));
static INLINE int elf_mips_isa PARAMS ((flagword));
static INLINE int elf_mips_mach PARAMS ((flagword));
-static boolean mips_elf32_section_from_shdr
- PARAMS ((bfd *, Elf32_Internal_Shdr *, char *));
-static boolean mips_elf32_section_processing
- PARAMS ((bfd *, Elf32_Internal_Shdr *));
+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
static struct bfd_link_hash_table *mips_elf_link_hash_table_create
PARAMS ((bfd *));
static int gptab_compare PARAMS ((const void *, const void *));
-static boolean mips_elf_final_link
- PARAMS ((bfd *, struct bfd_link_info *));
static void mips_elf_relocate_hi16
PARAMS ((bfd *, Elf_Internal_Rela *, Elf_Internal_Rela *, bfd_byte *,
bfd_vma));
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_adjust_dynindx
- PARAMS ((struct elf_link_hash_entry *, PTR));
-static boolean mips_elf_relocate_section
- PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
- Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
-static boolean mips_elf_link_output_symbol_hook
- PARAMS ((bfd *, struct bfd_link_info *, const char *, Elf_Internal_Sym *,
- asection *));
-static boolean mips_elf_create_dynamic_sections
- PARAMS ((bfd *, struct bfd_link_info *));
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 boolean mips_elf_check_relocs
- PARAMS ((bfd *, struct bfd_link_info *, asection *,
- const Elf_Internal_Rela *));
-static boolean mips_elf_adjust_dynamic_symbol
- PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
-static boolean mips_elf_always_size_sections
- PARAMS ((bfd *, struct bfd_link_info *));
-static boolean mips_elf_size_dynamic_sections
- PARAMS ((bfd *, struct bfd_link_info *));
-static boolean mips_elf_finish_dynamic_symbol
- PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
- Elf_Internal_Sym *));
-static boolean mips_elf_finish_dynamic_sections
- PARAMS ((bfd *, struct bfd_link_info *));
-static boolean mips_elf_add_symbol_hook
- PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *,
- const char **, flagword *, asection **, bfd_vma *));
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 **));
-
-/* This is true for Irix 5 executables, false for normal MIPS ELF ABI
- executables. FIXME: At the moment, we default to always generating
- Irix 5 executables. */
-
-#define SGI_COMPAT(abfd) (1)
-
-/* 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 symbol index of the first global .got symbol. */
- unsigned long global_gotsym;
- /* The number of local .got entries. */
- unsigned int local_gotno;
- /* The number of local .got entries we have used. */
- unsigned int assigned_gotno;
-};
+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 boolean mips_elf_next_lo16_addend
+ PARAMS ((const Elf_Internal_Rela *, const Elf_Internal_Rela *, bfd_vma *));
+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 **));
+static bfd_vma mips_elf_obtain_contents
+ PARAMS ((reloc_howto_type *, const Elf_Internal_Rela *, bfd *, bfd_byte *));
+static void mips_elf_perform_relocation
+ PARAMS ((reloc_howto_type *, const Elf_Internal_Rela *, bfd_vma,
+ bfd *, bfd_byte *));
+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 *));
+static asection * mips_elf_got_section PARAMS ((bfd *));
+static struct mips_got_info *mips_elf_got_info
+ PARAMS ((bfd *, asection **));
+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));
+static unsigned int mips_elf_create_dynamic_relocation
+ PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Rela *,
+ long, bfd_vma, asection *));
+static void mips_elf_allocate_dynamic_relocations
+ PARAMS ((bfd *, unsigned int));
+
+/* The level of IRIX compatibility we're striving for. */
+
+typedef enum {
+ ict_none,
+ ict_irix5,
+ ict_irix6
+} irix_compat_t;
+
+/* 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. FIXME: This is never
+ true, yet. */
+#define ABI_64_P(abfd) \
+ ((elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64) != 0)
+
+/* What version of Irix we are trying to be compatible with. FIXME:
+ At the moment, we never generate "normal" MIPS ELF ABI executables;
+ we always use some version of Irix. */
+
+#define IRIX_COMPAT(abfd) \
+ ((ABI_N32_P (abfd) || ABI_64_P (abfd)) ? ict_irix6 : ict_irix5)
+
+/* 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) \
+ ? bfd_elf64_add_dynamic_entry (info, tag, val) \
+ : (abort (), false))
+#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) \
- ? 0x8f998010 /* lw t9,0x8010(gp) */ \
+#define STUB_LW(abfd) \
+ (SGI_COMPAT (abfd) \
+ ? (ABI_64_P (abfd) \
+ ? 0xdf998010 /* ld t9,0x8010(gp) */ \
+ : 0x8f998010) /* lw t9,0x8010(gp) */ \
: 0x8f998000) /* lw t9,0x8000(gp) */
#define STUB_MOVE 0x03e07825 /* move t7,ra */
#define STUB_JALR 0x0320f809 /* jal t9 */
#define STUB_LI16 0x34180000 /* 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. */
#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[] =
#define USE_REL 1 /* MIPS uses REL relocations instead of RELA */
-enum reloc_type
-{
- R_MIPS_NONE = 0,
- R_MIPS_16, R_MIPS_32,
- R_MIPS_REL32, R_MIPS_26,
- R_MIPS_HI16, R_MIPS_LO16,
- R_MIPS_GPREL16, R_MIPS_LITERAL,
- R_MIPS_GOT16, R_MIPS_PC16,
- R_MIPS_CALL16, R_MIPS_GPREL32,
- /* The remaining relocs are defined on Irix, although they are not
- in the MIPS ELF ABI. */
- R_MIPS_UNUSED1, R_MIPS_UNUSED2,
- R_MIPS_UNUSED3,
- R_MIPS_SHIFT5, R_MIPS_SHIFT6,
- R_MIPS_64, R_MIPS_GOT_DISP,
- R_MIPS_GOT_PAGE, R_MIPS_GOT_OFST,
- R_MIPS_GOT_HI16, R_MIPS_GOT_LO16,
- R_MIPS_SUB, R_MIPS_INSERT_A,
- R_MIPS_INSERT_B, R_MIPS_DELETE,
- R_MIPS_HIGHER, R_MIPS_HIGHEST,
- R_MIPS_CALL_HI16, R_MIPS_CALL_LO16,
- /* start-sanitize-r5900 */
- /* This is used by a mips co-processor instruction. */
- R_MIPS15_S3,
- /* end-sanitize-r5900 */
- R_MIPS_max,
- /* These relocs are used for the mips16. */
- R_MIPS16_26 = 100,
- R_MIPS16_GPREL = 101,
-/* start-sanitize-sky */
- /* These relocs are for the dvp. */
- R_MIPS_DVP_11_PCREL = 120,
- R_MIPS_DVP_27_S4 = 121,
-/* end-sanitize-sky */
- /* These are GNU extensions to enable C++ vtable garbage collection. */
- R_MIPS_GNU_VTINHERIT = 253,
- R_MIPS_GNU_VTENTRY = 254
-};
+/* 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[] =
{
false), /* pcrel_offset */
/* 16 bit call through global offset table. */
- /* FIXME: This is not handled correctly. */
HOWTO (R_MIPS_CALL16, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
false), /* pcrel_offset */
/* Displacement in the global offset table. */
- /* FIXME: Not handled correctly. */
HOWTO (R_MIPS_GOT_DISP, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
false), /* pcrel_offset */
/* Displacement to page pointer in the global offset table. */
- /* FIXME: Not handled correctly. */
HOWTO (R_MIPS_GOT_PAGE, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
false), /* pcrel_offset */
/* Offset from page pointer in the global offset table. */
- /* FIXME: Not handled correctly. */
HOWTO (R_MIPS_GOT_OFST, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
false), /* pcrel_offset */
/* High 16 bits of displacement in global offset table. */
- /* FIXME: Not handled correctly. */
HOWTO (R_MIPS_GOT_HI16, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
false), /* pcrel_offset */
/* Low 16 bits of displacement in global offset table. */
- /* FIXME: Not handled correctly. */
HOWTO (R_MIPS_GOT_LO16, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
- /* 64 bit subtraction. Presumably not used in 32 bit ELF. */
- { R_MIPS_SUB },
+ /* 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? */
{ R_MIPS_INSERT_A },
{ R_MIPS_INSERT_B },
{ R_MIPS_DELETE },
- /* Get the higher values of a 64 bit addend. Presumably not used in
- 32 bit ELF. */
- { R_MIPS_HIGHER },
- { R_MIPS_HIGHEST },
+ /* 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. */
- /* FIXME: Not handled correctly. */
HOWTO (R_MIPS_CALL_HI16, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
false), /* pcrel_offset */
/* Low 16 bits of displacement in global offset table. */
- /* FIXME: Not handled correctly. */
HOWTO (R_MIPS_CALL_LO16, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
0x0000ffff, /* dst_mask */
false), /* pcrel_offset */
- /* start-sanitize-r5900 */
- HOWTO (R_MIPS15_S3, /* type */
- 3, /* rightshift */
+ /* Section displacement. */
+ HOWTO (R_MIPS_SCN_DISP, /* type */
+ 0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
- 15, /* bitsize */
+ 32, /* bitsize */
false, /* pc_relative */
- 6, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
- "R_MIPS15_S3", /* name */
- true, /* partial_inplace */
- 0x001fffc0, /* src_mask */
- 0x001fffc0, /* dst_mask */
- false) /* pcrel_offset */
- /* end-sanitize-r5900 */
+ "R_MIPS_SCN_DISP", /* name */
+ false, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+ { R_MIPS_REL16 },
+ { R_MIPS_ADD_IMMEDIATE },
+ { R_MIPS_PJUMP },
+ { 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
0xffff, /* dst_mask */
false); /* pcrel_offset */
-/* start-sanitize-sky */
-/* DVP relocations.
- Note that partial_inplace and pcrel_offset are backwards from the
- mips port. This is intentional as it seems more reasonable. */
-static reloc_howto_type elf_mips_dvp_11_pcrel_howto =
- HOWTO (R_MIPS_DVP_11_PCREL, /* type */
- 3, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 11, /* bitsize */
- true, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_signed, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_MIPS_DVP_11_PCREL", /* name */
- false, /* partial_inplace */
- 0x7ff, /* src_mask */
- 0x7ff, /* dst_mask */
- true); /* pcrel_offset */
-static reloc_howto_type elf_mips_dvp_27_s4_howto =
- HOWTO (R_MIPS_DVP_27_S4, /* type */
- 4, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 27, /* bitsize */
- false, /* pc_relative */
- 4, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_MIPS_DVP_27_S4", /* name */
- false, /* partial_inplace */
- 0x7ffffff0, /* src_mask */
- 0x7ffffff0, /* dst_mask */
- false); /* pcrel_offset */
-/* end-sanitize-sky */
/* GNU extension to record C++ vtable hierarchy */
static reloc_howto_type elf_mips_gnu_vtinherit_howto =
false, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
- NULL, /* special_function */
+ _bfd_elf_rel_vtable_reloc_fn, /* special_function */
"R_MIPS_GNU_VTENTRY", /* name */
false, /* partial_inplace */
0, /* src_mask */
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
*pgp = symbol->section->output_section->vma + 0x4000;
_bfd_set_gp_value (output_bfd, *pgp);
}
- else
+ else if (!mips_elf_assign_gp (output_bfd, pgp))
{
- unsigned int count;
- asymbol **sym;
- unsigned int i;
-
- count = bfd_get_symcount (output_bfd);
- sym = bfd_get_outsymbols (output_bfd);
-
- 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);
- *error_message =
- (char *) _("GP relative relocation when _gp not defined");
- return bfd_reloc_dangerous;
- }
+ *error_message =
+ (char *) _("GP relative relocation when _gp not defined");
+ return bfd_reloc_dangerous;
}
}
{
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;
- /* start-sanitize-vr4320 */
- case E_MIPS_MACH_4320:
- return bfd_mach_mips4320;
- /* end-sanitize-vr4320 */
-
+ case E_MIPS_MACH_4111:
+ return bfd_mach_mips4111;
+
case E_MIPS_MACH_4650:
return bfd_mach_mips4650;
- /* start-sanitize-tx49 */
- case E_MIPS_MACH_4900:
- return bfd_mach_mips4900;
- /* end-sanitize-tx49 */
- /* start-sanitize-vr5400 */
-
- case E_MIPS_MACH_5400:
- return bfd_mach_mips5400;
- /* end-sanitize-vr5400 */
- /* start-sanitize-r5900 */
-
- case E_MIPS_MACH_5900:
- return bfd_mach_mips5900;
- /* end-sanitize-r5900 */
-
default:
switch (flags & EF_MIPS_ARCH)
{
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;
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 reloc_type elf_reloc_val;
+ enum elf_mips_reloc_type elf_reloc_val;
};
static CONST struct elf_reloc_map mips_reloc_map[] =
{ 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 },
- /* start-sanitize-r5900 */
- { BFD_RELOC_MIPS15_S3, R_MIPS15_S3 },
- /* end-sanitize-r5900 */
+ { 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. */
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
return &elf_mips16_jump_howto;
case BFD_RELOC_MIPS16_GPREL:
return &elf_mips16_gprel_howto;
-/* start-sanitize-sky */
- case BFD_RELOC_MIPS_DVP_11_PCREL:
- return &elf_mips_dvp_11_pcrel_howto;
- case BFD_RELOC_MIPS_DVP_27_S4:
- return &elf_mips_dvp_27_s4_howto;
-/* end-sanitize-sky */
case BFD_RELOC_VTABLE_INHERIT:
return &elf_mips_gnu_vtinherit_howto;
case BFD_RELOC_VTABLE_ENTRY:
return &elf_mips_gnu_vtentry_howto;
}
-
- return NULL;
}
-/* Given a MIPS reloc type, fill in an arelent structure. */
+/* Given a MIPS Elf32_Internal_Rel, fill in an arelent structure. */
static void
mips_info_to_howto_rel (abfd, cache_ptr, dst)
case R_MIPS16_GPREL:
cache_ptr->howto = &elf_mips16_gprel_howto;
break;
-/* start-sanitize-sky */
- case R_MIPS_DVP_11_PCREL:
- cache_ptr->howto = &elf_mips_dvp_11_pcrel_howto;
- break;
- case R_MIPS_DVP_27_S4:
- cache_ptr->howto = &elf_mips_dvp_27_s4_howto;
- break;
-/* end-sanitize-sky */
case R_MIPS_GNU_VTINHERIT:
cache_ptr->howto = &elf_mips_gnu_vtinherit_howto;
break;
|| 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. */
+}
\f
/* A .reginfo section holds a single Elf32_RegInfo structure. These
routines swap this structure in and out. They are used outside of
bfd_h_put_16 (abfd, in->section, ex->section);
bfd_h_put_32 (abfd, in->info, ex->info);
}
+
+/* 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);
+}
+
+/* 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);
+}
+
\f
/* Determine whether a symbol is global for the purposes of splitting
the symbol table into global symbols and local symbols. At least
_bfd_mips_elf_object_p (abfd)
bfd *abfd;
{
- bfd_default_set_arch_mach (abfd, bfd_arch_mips,
- elf_mips_mach (elf_elfheader (abfd)->e_flags));
- return true;
-}
-
-/* Set the right machine number for a 32-bit MIPS ELF file. */
-
-static boolean
-mips_elf32_object_p (abfd)
- bfd *abfd;
-{
- /* Irix 5 is broken. Object file symbol tables are not always
+ /* 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;
- return _bfd_mips_elf_object_p (abfd);
+ 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
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_mips4100:
val = E_MIPS_ARCH_3 | E_MIPS_MACH_4100;
break;
- /* start-sanitize-vr4320 */
- case bfd_mach_mips4320:
- val = E_MIPS_ARCH_3 | E_MIPS_MACH_4320;
+ case bfd_mach_mips4111:
+ val = E_MIPS_ARCH_3 | E_MIPS_MACH_4111;
break;
- /* end-sanitize-vr4320 */
case bfd_mach_mips4650:
val = E_MIPS_ARCH_3 | E_MIPS_MACH_4650;
break;
- /* start-sanitize-tx49 */
-
- case bfd_mach_mips4900:
- val = E_MIPS_ARCH_3 | E_MIPS_MACH_4900;
- break;
- /* end-sanitize-tx49 */
- /* start-sanitize-vr5400 */
-
- case bfd_mach_mips5400:
- val = E_MIPS_ARCH_3 | E_MIPS_MACH_5400;
- break;
- /* end-sanitize-vr5400 */
- /* start-sanitize-r5900 */
-
- case bfd_mach_mips5900:
- val = E_MIPS_ARCH_3 | E_MIPS_MACH_5900;
- break;
- /* end-sanitize-r5900 */
case bfd_mach_mips8000:
val = E_MIPS_ARCH_4;
{
switch ((*hdrpp)->sh_type)
{
+ case SHT_MIPS_MSYM:
case SHT_MIPS_LIBLIST:
sec = bfd_get_section_by_name (abfd, ".dynstr");
if (sec != NULL)
sec = bfd_get_section_by_name (abfd,
name + sizeof ".MIPS.content" - 1);
BFD_ASSERT (sec != NULL);
- (*hdrpp)->sh_info = elf_section_data (sec)->this_idx;
+ (*hdrpp)->sh_link = elf_section_data (sec)->this_idx;
break;
case SHT_MIPS_SYMBOL_LIB:
(*hdrpp)->sh_link = elf_section_data (sec)->this_idx;
break;
-/* start-sanitize-sky */
- case SHT_DVP_OVERLAY_TABLE:
- /* ??? This may not be technically necessary, just going with
- the flow ... */
- sec = bfd_get_section_by_name (abfd, SHNAME_DVP_OVERLAY_STRTAB);
- if (sec != NULL)
- (*hdrpp)->sh_link = elf_section_data (sec)->this_idx;
- break;
-/* end-sanitize-sky */
}
}
}
{
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)
}
/* Compare the ISA's. */
- if ((new_flags & (EF_MIPS_ARCH | EF_MIPS_MACH))
+ if ((new_flags & (EF_MIPS_ARCH | EF_MIPS_MACH))
!= (old_flags & (EF_MIPS_ARCH | EF_MIPS_MACH)))
{
- /* If either has no machine specified, just compare the general isa's. */
- if ( !(new_flags & EF_MIPS_MACH) || !(old_flags & 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
+ )
{
- int new_isa, old_isa;
-
/* Don't warn about mixing -mips1 and -mips2 code, or mixing -mips3
and -mips4 code. They will normally use the same data sizes and
calling conventions. */
-
- new_isa = elf_mips_isa (new_flags);
- old_isa = elf_mips_isa (old_flags);
+
if ((new_isa == 1 || new_isa == 2)
? (old_isa != 1 && old_isa != 2)
: (old_isa == 1 || old_isa == 2))
{
(*_bfd_error_handler)
(_("%s: ISA mismatch (%d) with previous modules (%d)"),
- bfd_get_filename (ibfd),
- elf_mips_mach (new_flags),
+ 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)
{
return true;
}
\f
+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
+ 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;
+}
+\f
/* 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.
_bfd_mips_elf_section_from_shdr (abfd, hdr, name)
bfd *abfd;
Elf_Internal_Shdr *hdr;
- const char *name;
+ 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
switch (hdr->sh_type)
{
case SHT_MIPS_LIBLIST:
- if (strcmp (name, _(".liblist")) != 0)
+ if (strcmp (name, ".liblist") != 0)
return false;
break;
case SHT_MIPS_MSYM:
- if (strcmp (name, ".msym") != 0)
+ if (strcmp (name, MIPS_ELF_MSYM_SECTION_NAME (abfd)) != 0)
return false;
break;
case SHT_MIPS_CONFLICT:
case SHT_MIPS_DEBUG:
if (strcmp (name, ".mdebug") != 0)
return false;
+ flags = SEC_DEBUGGING;
break;
case SHT_MIPS_REGINFO:
if (strcmp (name, ".reginfo") != 0
|| hdr->sh_size != sizeof (Elf32_External_RegInfo))
return false;
+ flags = (SEC_LINK_ONCE | SEC_LINK_DUPLICATES_SAME_SIZE);
break;
case SHT_MIPS_IFACE:
if (strcmp (name, ".MIPS.interfaces") != 0)
return false;
break;
case SHT_MIPS_OPTIONS:
- if (strcmp (name, ".options") != 0
- && strcmp (name, ".MIPS.options") != 0)
+ if (strcmp (name, MIPS_ELF_OPTIONS_SECTION_NAME (abfd)) != 0)
return false;
break;
case SHT_MIPS_DWARF:
sizeof ".MIPS.post_rel" - 1) != 0)
return false;
break;
-/* start-sanitize-sky */
- case SHT_DVP_OVERLAY_TABLE:
- if (strcmp (name, SHNAME_DVP_OVERLAY_TABLE) !=0)
- return false;
- break;
- case SHT_DVP_OVERLAY:
- if (strncmp (name, SHNAME_DVP_OVERLAY_PREFIX,
- sizeof (SHNAME_DVP_OVERLAY_PREFIX) - 1) !=0)
- return false;
- break;
-/* end-sanitize-sky */
default:
return false;
}
if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name))
return false;
- if (hdr->sh_type == SHT_MIPS_DEBUG)
+ if (flags)
{
if (! bfd_set_section_flags (abfd, hdr->bfd_section,
(bfd_get_section_flags (abfd,
hdr->bfd_section)
- | SEC_DEBUGGING)))
+ | flags)))
return false;
}
- return true;
-}
-
-/* Handle a 32-bit MIPS ELF specific section. */
-
-static boolean
-mips_elf32_section_from_shdr (abfd, hdr, name)
- bfd *abfd;
- Elf_Internal_Shdr *hdr;
- char *name;
-{
- if (! _bfd_mips_elf_section_from_shdr (abfd, hdr, name))
- return false;
-
/* FIXME: We should record sh_info for a .gptab section. */
/* For a .reginfo section, set the gp value in the tdata information
bfd_mips_elf_swap_options_in (abfd, (Elf_External_Options *) l,
&intopt);
- if (intopt.kind == ODK_REGINFO)
+ if (ABI_64_P (abfd) && intopt.kind == ODK_REGINFO)
+ {
+ Elf64_Internal_RegInfo intreg;
+
+ bfd_mips_elf64_swap_reginfo_in
+ (abfd,
+ ((Elf64_External_RegInfo *)
+ (l + sizeof (Elf_External_Options))),
+ &intreg);
+ elf_gp (abfd) = intreg.ri_gp_value;
+ }
+ else if (intopt.kind == ODK_REGINFO)
{
Elf32_RegInfo intreg;
hdr->sh_info = sec->_raw_size / sizeof (Elf32_Lib);
/* The sh_link field is set in final_write_processing. */
}
- else if (strcmp (name, ".msym") == 0)
- {
- hdr->sh_type = SHT_MIPS_MSYM;
- hdr->sh_entsize = 8;
- /* FIXME: Set the sh_info field. */
- }
else if (strcmp (name, ".conflict") == 0)
hdr->sh_type = SHT_MIPS_CONFLICT;
else if (strncmp (name, ".gptab.", sizeof ".gptab." - 1) == 0)
hdr->sh_entsize = sizeof (Elf32_External_RegInfo);
else
hdr->sh_entsize = 1;
-
- /* Force the section size to the correct value, even if the
- linker thinks it is larger. The link routine below will only
- write out this much data for .reginfo. */
- hdr->sh_size = sec->_raw_size = sizeof (Elf32_External_RegInfo);
}
else if (SGI_COMPAT (abfd)
&& (strcmp (name, ".hash") == 0
|| strcmp (name, ".dynstr") == 0))
{
hdr->sh_entsize = 0;
+#if 0
+ /* This isn't how the Irix 6 linker behaves. */
hdr->sh_info = SIZEOF_MIPS_DYNSYM_SECNAMES;
+#endif
}
else if (strcmp (name, ".got") == 0
+ || strcmp (name, MIPS_ELF_SRDATA_SECTION_NAME (abfd)) == 0
|| strcmp (name, ".sdata") == 0
|| strcmp (name, ".sbss") == 0
|| strcmp (name, ".lit4") == 0
hdr->sh_type = SHT_MIPS_IFACE;
hdr->sh_flags |= SHF_MIPS_NOSTRIP;
}
- else if (strcmp (name, ".MIPS.content") == 0)
+ else if (strncmp (name, ".MIPS.content", strlen (".MIPS.content")) == 0)
{
hdr->sh_type = SHT_MIPS_CONTENT;
+ hdr->sh_flags |= SHF_MIPS_NOSTRIP;
/* The sh_info field is set in final_write_processing. */
}
- else if (strcmp (name, ".options") == 0
- || strcmp (name, ".MIPS.options") == 0)
+ else if (strcmp (name, MIPS_ELF_OPTIONS_SECTION_NAME (abfd)) == 0)
{
hdr->sh_type = SHT_MIPS_OPTIONS;
hdr->sh_entsize = 1;
hdr->sh_flags |= SHF_MIPS_NOSTRIP;
/* The sh_link field is set in final_write_processing. */
}
-/* start-sanitize-sky */
- else if (strcmp (name, SHNAME_DVP_OVERLAY_TABLE) == 0)
+ else if (strcmp (name, MIPS_ELF_MSYM_SECTION_NAME (abfd)) == 0)
{
- hdr->sh_type = SHT_DVP_OVERLAY_TABLE;
- hdr->sh_entsize = sizeof (Elf32_Dvp_External_Overlay);
- /* The sh_link field is set in final_write_processing. */
+ hdr->sh_type = SHT_MIPS_MSYM;
+ hdr->sh_flags |= SHF_ALLOC;
+ hdr->sh_entsize = 8;
+ }
+
+ /* The generic elf_fake_sections will set up REL_HDR using the
+ default kind of relocations. But, we may actually need both
+ kinds of relocations, so we set up the second header here. */
+ if ((sec->flags & SEC_RELOC) != 0)
+ {
+ struct bfd_elf_section_data *esd;
+
+ esd = elf_section_data (sec);
+ BFD_ASSERT (esd->rel_hdr2 == NULL);
+ esd->rel_hdr2
+ = (Elf_Internal_Shdr *) bfd_zalloc (abfd, sizeof (Elf_Internal_Shdr));
+ if (!esd->rel_hdr2)
+ return false;
+ _bfd_elf_init_reloc_shdr (abfd, esd->rel_hdr2, sec,
+ !elf_section_data (sec)->use_rela_p);
}
- else if (strcmp (name, SHNAME_DVP_OVERLAY_STRTAB) == 0)
- hdr->sh_type = SHT_STRTAB;
- else if (strncmp (name, SHNAME_DVP_OVERLAY_PREFIX,
- sizeof (SHNAME_DVP_OVERLAY_PREFIX) - 1) == 0)
- hdr->sh_type = SHT_DVP_OVERLAY;
-/* end-sanitize-sky */
return true;
}
file_ptr offset;
bfd_size_type count;
{
- if (strcmp (section->name, ".options") == 0
- || strcmp (section->name, ".MIPS.options") == 0)
+ if (strcmp (section->name, MIPS_ELF_OPTIONS_SECTION_NAME (abfd)) == 0)
{
bfd_byte *c;
bfd *abfd;
Elf_Internal_Shdr *hdr;
{
- if (hdr->bfd_section != NULL)
- {
- const char *name = bfd_get_section_name (abfd, hdr->bfd_section);
-
- if (strcmp (name, ".sdata") == 0)
- {
- hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL;
- hdr->sh_type = SHT_PROGBITS;
- }
- else if (strcmp (name, ".sbss") == 0)
- {
- hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL;
- hdr->sh_type = SHT_NOBITS;
- }
- else if (strcmp (name, ".lit8") == 0
- || strcmp (name, ".lit4") == 0)
- {
- hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL;
- hdr->sh_type = SHT_PROGBITS;
- }
- else if (strcmp (name, ".compact_rel") == 0)
- {
- hdr->sh_flags = 0;
- hdr->sh_type = SHT_PROGBITS;
- }
- else if (strcmp (name, ".rtproc") == 0)
- {
- if (hdr->sh_addralign != 0 && hdr->sh_entsize == 0)
- {
- unsigned int adjust;
-
- adjust = hdr->sh_size % hdr->sh_addralign;
- if (adjust != 0)
- hdr->sh_size += hdr->sh_addralign - adjust;
- }
- }
- }
-
- return true;
-}
-
-/* Work over a section just before writing it out. We update the GP
- value in the SHT_MIPS_REGINFO and SHT_MIPS_OPTIONS sections based
- on the value we are using. */
-
-static boolean
-mips_elf32_section_processing (abfd, hdr)
- bfd *abfd;
- Elf32_Internal_Shdr *hdr;
-{
- if (hdr->sh_type == SHT_MIPS_REGINFO)
+ if (hdr->sh_type == SHT_MIPS_REGINFO
+ && hdr->sh_size > 0)
{
bfd_byte buf[4];
bfd_mips_elf_swap_options_in (abfd, (Elf_External_Options *) l,
&intopt);
- if (intopt.kind == ODK_REGINFO)
+ if (ABI_64_P (abfd) && intopt.kind == ODK_REGINFO)
+ {
+ bfd_byte buf[8];
+
+ if (bfd_seek (abfd,
+ (hdr->sh_offset
+ + (l - contents)
+ + sizeof (Elf_External_Options)
+ + (sizeof (Elf64_External_RegInfo) - 8)),
+ SEEK_SET) == -1)
+ return false;
+ bfd_h_put_64 (abfd, elf_gp (abfd), buf);
+ if (bfd_write (buf, 1, 8, abfd) != 8)
+ return false;
+ }
+ else if (intopt.kind == ODK_REGINFO)
{
bfd_byte buf[4];
}
}
- return _bfd_mips_elf_section_processing (abfd, hdr);
+ if (hdr->bfd_section != NULL)
+ {
+ const char *name = bfd_get_section_name (abfd, hdr->bfd_section);
+
+ if (strcmp (name, ".sdata") == 0
+ || strcmp (name, ".lit8") == 0
+ || strcmp (name, ".lit4") == 0)
+ {
+ hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL;
+ hdr->sh_type = SHT_PROGBITS;
+ }
+ else if (strcmp (name, ".sbss") == 0)
+ {
+ hdr->sh_flags |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL;
+ hdr->sh_type = SHT_NOBITS;
+ }
+ else if (strcmp (name, MIPS_ELF_SRDATA_SECTION_NAME (abfd)) == 0)
+ {
+ hdr->sh_flags |= SHF_ALLOC | SHF_MIPS_GPREL;
+ hdr->sh_type = SHT_PROGBITS;
+ }
+ else if (strcmp (name, ".compact_rel") == 0)
+ {
+ hdr->sh_flags = 0;
+ hdr->sh_type = SHT_PROGBITS;
+ }
+ else if (strcmp (name, ".rtproc") == 0)
+ {
+ if (hdr->sh_addralign != 0 && hdr->sh_entsize == 0)
+ {
+ unsigned int adjust;
+
+ adjust = hdr->sh_size % hdr->sh_addralign;
+ if (adjust != 0)
+ hdr->sh_size += hdr->sh_addralign - adjust;
+ }
+ }
+ }
+
+ return true;
}
+
\f
/* MIPS ELF uses two common sections. One is the usual one, and the
other is for small objects. All the small objects are kept
case SHN_COMMON:
/* Common symbols less than the GP size are automatically
- treated as SHN_MIPS_SCOMMON symbols. */
- if (asym->value > elf_gp_size (abfd))
+ treated as SHN_MIPS_SCOMMON symbols on IRIX5. */
+ if (asym->value > elf_gp_size (abfd)
+ || IRIX_COMPAT (abfd) == ict_irix6)
break;
/* Fall through. */
case SHN_MIPS_SCOMMON:
/* When creating an Irix 5 executable, we need REGINFO and RTPROC
segments. */
-static int
-mips_elf_additional_program_headers (abfd)
+int
+_bfd_mips_elf_additional_program_headers (abfd)
bfd *abfd;
{
asection *s;
- int ret;
+ int ret = 0;
- ret = 0;
-
- if (! SGI_COMPAT (abfd))
- return ret;
+ if (!SGI_COMPAT (abfd))
+ return 0;
+ /* See if we need a PT_MIPS_REGINFO segment. */
s = bfd_get_section_by_name (abfd, ".reginfo");
- if (s != NULL && (s->flags & SEC_LOAD) != 0)
- {
- /* We need a PT_MIPS_REGINFO segment. */
- ++ret;
- }
+ if (s && (s->flags & SEC_LOAD))
+ ++ret;
- if (bfd_get_section_by_name (abfd, ".dynamic") != NULL
- && bfd_get_section_by_name (abfd, ".mdebug") != NULL)
- {
- /* We need a PT_MIPS_RTPROC segment. */
- ++ret;
- }
+ /* See if we need a PT_MIPS_OPTIONS segment. */
+ if (IRIX_COMPAT (abfd) == ict_irix6
+ && bfd_get_section_by_name (abfd,
+ MIPS_ELF_OPTIONS_SECTION_NAME (abfd)))
+ ++ret;
+
+ /* See if we need a PT_MIPS_RTPROC segment. */
+ if (IRIX_COMPAT (abfd) == ict_irix5
+ && bfd_get_section_by_name (abfd, ".dynamic")
+ && bfd_get_section_by_name (abfd, ".mdebug"))
+ ++ret;
return ret;
}
/* Modify the segment map for an Irix 5 executable. */
-static boolean
-mips_elf_modify_segment_map (abfd)
+boolean
+_bfd_mips_elf_modify_segment_map (abfd)
bfd *abfd;
{
asection *s;
}
}
- /* If there are .dynamic and .mdebug sections, we make a room for
- the RTPROC header. FIXME: Rewrite without section names. */
- if (bfd_get_section_by_name (abfd, ".interp") == NULL
- && bfd_get_section_by_name (abfd, ".dynamic") != NULL
- && bfd_get_section_by_name (abfd, ".mdebug") != NULL)
+ /* For IRIX 6, we don't have .mdebug sections, nor does anything but
+ .dynamic end up in PT_DYNAMIC. However, we do have to insert a
+ PT_OPTIONS segement immediately following the program header
+ table. */
+ if (IRIX_COMPAT (abfd) == ict_irix6)
{
- for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
- if (m->p_type == PT_MIPS_RTPROC)
+ asection *s;
+
+ for (s = abfd->sections; s; s = s->next)
+ if (elf_section_data (s)->this_hdr.sh_type == SHT_MIPS_OPTIONS)
break;
- if (m == NULL)
+
+ if (s)
{
- m = (struct elf_segment_map *) bfd_zalloc (abfd, sizeof *m);
+ struct elf_segment_map *options_segment;
+
+ for (m = elf_tdata (abfd)->segment_map; m; m = m->next)
+ if (m->p_type == PT_PHDR)
+ break;
+
+ /* There should always be a program header table. */
if (m == NULL)
return false;
- m->p_type = PT_MIPS_RTPROC;
-
- s = bfd_get_section_by_name (abfd, ".rtproc");
- if (s == NULL)
- {
- m->count = 0;
- m->p_flags = 0;
- m->p_flags_valid = 1;
- }
- else
+ options_segment = bfd_zalloc (abfd,
+ sizeof (struct elf_segment_map));
+ options_segment->next = m->next;
+ options_segment->p_type = PT_MIPS_OPTIONS;
+ options_segment->p_flags = PF_R;
+ options_segment->p_flags_valid = true;
+ options_segment->count = 1;
+ options_segment->sections[0] = s;
+ m->next = options_segment;
+ }
+ }
+ else
+ {
+ /* If there are .dynamic and .mdebug sections, we make a room
+ for the RTPROC header. FIXME: Rewrite without section names. */
+ if (bfd_get_section_by_name (abfd, ".interp") == NULL
+ && bfd_get_section_by_name (abfd, ".dynamic") != NULL
+ && bfd_get_section_by_name (abfd, ".mdebug") != NULL)
+ {
+ for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
+ if (m->p_type == PT_MIPS_RTPROC)
+ break;
+ if (m == NULL)
{
- m->count = 1;
- m->sections[0] = s;
- }
+ m = (struct elf_segment_map *) bfd_zalloc (abfd, sizeof *m);
+ if (m == NULL)
+ return false;
- /* We want to put it after the DYNAMIC segment. */
- pm = &elf_tdata (abfd)->segment_map;
- while (*pm != NULL && (*pm)->p_type != PT_DYNAMIC)
- pm = &(*pm)->next;
- if (*pm != NULL)
- pm = &(*pm)->next;
+ m->p_type = PT_MIPS_RTPROC;
- m->next = *pm;
- *pm = m;
+ s = bfd_get_section_by_name (abfd, ".rtproc");
+ if (s == NULL)
+ {
+ m->count = 0;
+ m->p_flags = 0;
+ m->p_flags_valid = 1;
+ }
+ else
+ {
+ m->count = 1;
+ m->sections[0] = s;
+ }
+
+ /* We want to put it after the DYNAMIC segment. */
+ pm = &elf_tdata (abfd)->segment_map;
+ while (*pm != NULL && (*pm)->p_type != PT_DYNAMIC)
+ pm = &(*pm)->next;
+ if (*pm != NULL)
+ pm = &(*pm)->next;
+
+ m->next = *pm;
+ *pm = m;
+ }
}
- }
- /* On Irix 5, the PT_DYNAMIC segment includes the .dynamic, .dynstr,
- .dynsym, and .hash sections, and everything in between. */
- for (pm = &elf_tdata (abfd)->segment_map; *pm != NULL; pm = &(*pm)->next)
- if ((*pm)->p_type == PT_DYNAMIC)
- break;
- m = *pm;
- if (m != NULL
- && m->count == 1
- && strcmp (m->sections[0]->name, ".dynamic") == 0)
- {
- static const char *sec_names[] =
- { ".dynamic", ".dynstr", ".dynsym", ".hash" };
- bfd_vma low, high;
- unsigned int i, c;
- struct elf_segment_map *n;
-
- low = 0xffffffff;
- high = 0;
- for (i = 0; i < sizeof sec_names / sizeof sec_names[0]; i++)
+ /* On Irix 5, the PT_DYNAMIC segment includes the .dynamic,
+ .dynstr, .dynsym, and .hash sections, and everything in
+ between. */
+ for (pm = &elf_tdata (abfd)->segment_map; *pm != NULL; pm = &(*pm)->next)
+ if ((*pm)->p_type == PT_DYNAMIC)
+ break;
+ m = *pm;
+ if (m != NULL
+ && m->count == 1
+ && strcmp (m->sections[0]->name, ".dynamic") == 0)
{
- s = bfd_get_section_by_name (abfd, sec_names[i]);
- if (s != NULL && (s->flags & SEC_LOAD) != 0)
+ static const char *sec_names[] =
+ { ".dynamic", ".dynstr", ".dynsym", ".hash" };
+ bfd_vma low, high;
+ unsigned int i, c;
+ struct elf_segment_map *n;
+
+ low = 0xffffffff;
+ high = 0;
+ for (i = 0; i < sizeof sec_names / sizeof sec_names[0]; i++)
{
- bfd_size_type sz;
-
- if (low > s->vma)
- low = s->vma;
- sz = s->_cooked_size;
- if (sz == 0)
- sz = s->_raw_size;
- if (high < s->vma + sz)
- high = s->vma + sz;
+ s = bfd_get_section_by_name (abfd, sec_names[i]);
+ if (s != NULL && (s->flags & SEC_LOAD) != 0)
+ {
+ bfd_size_type sz;
+
+ if (low > s->vma)
+ low = s->vma;
+ sz = s->_cooked_size;
+ if (sz == 0)
+ sz = s->_raw_size;
+ if (high < s->vma + sz)
+ high = s->vma + sz;
+ }
}
- }
- c = 0;
- for (s = abfd->sections; s != NULL; s = s->next)
- if ((s->flags & SEC_LOAD) != 0
- && s->vma >= low
- && ((s->vma
- + (s->_cooked_size != 0 ? s->_cooked_size : s->_raw_size))
- <= high))
- ++c;
-
- n = ((struct elf_segment_map *)
- bfd_zalloc (abfd, sizeof *n + (c - 1) * sizeof (asection *)));
- if (n == NULL)
- return false;
- *n = *m;
- n->count = c;
+ c = 0;
+ for (s = abfd->sections; s != NULL; s = s->next)
+ if ((s->flags & SEC_LOAD) != 0
+ && s->vma >= low
+ && ((s->vma
+ + (s->_cooked_size != 0 ? s->_cooked_size : s->_raw_size))
+ <= high))
+ ++c;
+
+ n = ((struct elf_segment_map *)
+ bfd_zalloc (abfd, sizeof *n + (c - 1) * sizeof (asection *)));
+ if (n == NULL)
+ return false;
+ *n = *m;
+ n->count = c;
- i = 0;
- for (s = abfd->sections; s != NULL; s = s->next)
- {
- if ((s->flags & SEC_LOAD) != 0
- && s->vma >= low
- && ((s->vma
- + (s->_cooked_size != 0 ? s->_cooked_size : s->_raw_size))
- <= high))
+ i = 0;
+ for (s = abfd->sections; s != NULL; s = s->next)
{
- n->sections[i] = s;
- ++i;
+ if ((s->flags & SEC_LOAD) != 0
+ && s->vma >= low
+ && ((s->vma
+ + (s->_cooked_size != 0 ?
+ s->_cooked_size : s->_raw_size))
+ <= high))
+ {
+ n->sections[i] = s;
+ ++i;
+ }
}
- }
- *pm = n;
+ *pm = n;
+ }
}
return true;
char *ext_hdr = NULL;
swap = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
+ memset (debug, 0, sizeof(*debug));
ext_hdr = (char *) bfd_malloc ((size_t) swap->external_hdr_size);
if (ext_hdr == NULL && swap->external_hdr_size != 0)
{
asection *msec;
- if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset,
- filename_ptr, functionname_ptr,
+ if (_bfd_dwarf1_find_nearest_line (abfd, section, symbols, offset,
+ filename_ptr, functionname_ptr,
line_ptr))
return true;
+ if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset,
+ filename_ptr, functionname_ptr,
+ line_ptr,
+ ABI_64_P (abfd) ? 8 : 0))
+ return true;
+
msec = bfd_get_section_by_name (abfd, ".mdebug");
if (msec != NULL)
{
#define CALL_STUB ".mips16.call."
#define CALL_FP_STUB ".mips16.call.fp."
-/* 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 MIPS_32 or MIPS_REL32 relocs against this symbol. */
- unsigned int mips_32_relocs;
-
- /* 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;
-};
-
/* MIPS ELF linker hash table. */
struct mips_elf_link_hash_table
{
struct elf_link_hash_table root;
+#if 0
+ /* We no longer use this. */
/* String section indices for the dynamic section symbols. */
bfd_size_type dynsym_sec_strindex[SIZEOF_MIPS_DYNSYM_SECNAMES];
+#endif
/* The number of .rtproc entries. */
bfd_size_type procedure_count;
/* The size of the .compact_rel section (if SGI_COMPAT). */
not been set. -1 means there is no associated ifd. */
ret->esym.ifd = -2;
ret->mips_32_relocs = 0;
+ ret->min_dyn_reloc_index = 0;
ret->fn_stub = NULL;
ret->need_fn_stub = false;
ret->call_stub = NULL;
/* Create a MIPS ELF linker hash table. */
-static struct bfd_link_hash_table *
-mips_elf_link_hash_table_create (abfd)
+struct bfd_link_hash_table *
+_bfd_mips_elf_link_hash_table_create (abfd)
bfd *abfd;
{
struct mips_elf_link_hash_table *ret;
- unsigned int i;
ret = ((struct mips_elf_link_hash_table *)
bfd_alloc (abfd, sizeof (struct mips_elf_link_hash_table)));
return NULL;
}
+#if 0
+ /* We no longer use this. */
for (i = 0; i < SIZEOF_MIPS_DYNSYM_SECNAMES; i++)
ret->dynsym_sec_strindex[i] = (bfd_size_type) -1;
+#endif
ret->procedure_count = 0;
ret->compact_rel_size = 0;
ret->use_rld_obj_head = false;
file. We must handle the special MIPS section numbers here. */
/*ARGSUSED*/
-static boolean
-mips_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
+boolean
+_bfd_mips_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
bfd *abfd;
struct bfd_link_info *info;
const Elf_Internal_Sym *sym;
case SHN_COMMON:
/* Common symbols less than the GP size are automatically
treated as SHN_MIPS_SCOMMON symbols. */
- if (sym->st_size > elf_gp_size (abfd))
+ if (sym->st_size > elf_gp_size (abfd)
+ || IRIX_COMPAT (abfd) == ict_irix6)
break;
/* Fall through. */
case SHN_MIPS_SCOMMON:
the .mdebug sections. We need to merge all instances of these
sections together, not write them all out sequentially. */
-static boolean
-mips_elf_final_link (abfd, info)
+boolean
+_bfd_mips_elf_final_link (abfd, info)
bfd *abfd;
struct bfd_link_info *info;
{
HDRR *symhdr = &debug.symbolic_header;
PTR mdebug_handle = NULL;
- /* Drop the .options section, since it has special semantics which I
- haven't bothered to figure out. */
- for (secpp = &abfd->sections; *secpp != NULL; secpp = &(*secpp)->next)
+ /* If all the things we linked together were PIC, but we're
+ producing an executable (rather than a shared object), then the
+ resulting file is CPIC (i.e., it calls PIC code.) */
+ if (!info->shared
+ && !info->relocateable
+ && elf_elfheader (abfd)->e_flags & EF_MIPS_PIC)
{
- if (strcmp ((*secpp)->name, ".options") == 0)
- {
- for (p = (*secpp)->link_order_head; p != NULL; p = p->next)
- if (p->type == bfd_indirect_link_order)
- p->u.indirect.section->flags &=~ SEC_HAS_CONTENTS;
- (*secpp)->link_order_head = NULL;
- *secpp = (*secpp)->next;
- --abfd->section_count;
- break;
- }
+ elf_elfheader (abfd)->e_flags &= ~EF_MIPS_PIC;
+ elf_elfheader (abfd)->e_flags |= EF_MIPS_CPIC;
}
+ /* On IRIX5, we omit the .options section. On IRIX6, however, we
+ include it, even though we don't process it quite right. (Some
+ entries are supposed to be merged.) Empirically, we seem to be
+ better off including it then not. */
+ if (IRIX_COMPAT (abfd) == ict_irix5)
+ for (secpp = &abfd->sections; *secpp != NULL; secpp = &(*secpp)->next)
+ {
+ if (strcmp ((*secpp)->name, MIPS_ELF_OPTIONS_SECTION_NAME (abfd)) == 0)
+ {
+ for (p = (*secpp)->link_order_head; p != NULL; p = p->next)
+ if (p->type == bfd_indirect_link_order)
+ p->u.indirect.section->flags &=~ SEC_HAS_CONTENTS;
+ (*secpp)->link_order_head = NULL;
+ *secpp = (*secpp)->next;
+ --abfd->section_count;
+
+ break;
+ }
+ }
+
/* Get a value for the GP register. */
if (elf_gp (abfd) == 0)
{
{
bfd_vma lo;
- /* Make up a value. */
+ /* Find the GP-relative section with the lowest offset. */
lo = (bfd_vma) -1;
for (o = abfd->sections; o != (asection *) NULL; o = o->next)
- {
- if (o->vma < lo
- && (strcmp (o->name, ".sbss") == 0
- || strcmp (o->name, ".sdata") == 0
- || strcmp (o->name, ".lit4") == 0
- || strcmp (o->name, ".lit8") == 0))
- lo = o->vma;
- }
+ if (o->vma < lo
+ && (elf_section_data (o)->this_hdr.sh_flags & SHF_MIPS_GPREL))
+ lo = o->vma;
+
+ /* And calculate GP relative to that. */
elf_gp (abfd) = lo + ELF_MIPS_GP_OFFSET (abfd);
}
else
input_section->flags &=~ SEC_HAS_CONTENTS;
}
- /* Force the section size to the value we want. */
- o->_raw_size = sizeof (Elf32_External_RegInfo);
+ /* Size has been set in mips_elf_always_size_sections */
+ BFD_ASSERT(o->_raw_size == sizeof (Elf32_External_RegInfo));
/* Skip this section later on (I don't think this currently
matters, but someday it might). */
}
/* Invoke the regular ELF backend linker to do all the work. */
- if (! bfd_elf32_bfd_final_link (abfd, info))
+ if (ABI_64_P (abfd))
+ {
+#ifdef BFD64
+ if (!bfd_elf64_bfd_final_link (abfd, info))
+ return false;
+#else
+ abort ();
+ return false;
+#endif /* BFD64 */
+ }
+ else if (!bfd_elf32_bfd_final_link (abfd, info))
return false;
/* Now write out the computed sections. */
contents + rel->r_offset);
}
-/* Relocate a MIPS ELF section. */
+/* Returns the GOT section for ABFD. */
-static boolean
-mips_elf_relocate_section (output_bfd, info, input_bfd, input_section,
- contents, relocs, local_syms, local_sections)
- bfd *output_bfd;
- struct bfd_link_info *info;
- bfd *input_bfd;
- asection *input_section;
- bfd_byte *contents;
- Elf_Internal_Rela *relocs;
- Elf_Internal_Sym *local_syms;
- asection **local_sections;
+static asection *
+mips_elf_got_section (abfd)
+ bfd *abfd;
{
- Elf_Internal_Shdr *symtab_hdr;
- size_t locsymcount;
- size_t extsymoff;
- asection *sgot, *sreloc, *scpt;
- bfd *dynobj;
- bfd_vma gp;
- Elf_Internal_Rela *rel;
- Elf_Internal_Rela *relend;
- struct mips_got_info *g;
+ return bfd_get_section_by_name (abfd, ".got");
+}
- dynobj = elf_hash_table (info)->dynobj;
- symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+/* Returns the GOT information associated with the link indicated by
+ INFO. If SGOTP is non-NULL, it is filled in with the GOT
+ section. */
- sgot = NULL;
- sreloc = NULL;
- if (dynobj == NULL || ! SGI_COMPAT (output_bfd))
- scpt = NULL;
- else
- scpt = bfd_get_section_by_name (dynobj, ".compact_rel");
- g = NULL;
+static struct mips_got_info *
+mips_elf_got_info (abfd, sgotp)
+ bfd *abfd;
+ asection **sgotp;
+{
+ asection *sgot;
+ struct mips_got_info *g;
- if (elf_bad_symtab (input_bfd))
- {
- locsymcount = symtab_hdr->sh_size / sizeof (Elf32_External_Sym);
- extsymoff = 0;
- }
- else
- {
- locsymcount = symtab_hdr->sh_info;
- extsymoff = symtab_hdr->sh_info;
- }
+ sgot = mips_elf_got_section (abfd);
+ BFD_ASSERT (sgot != NULL);
+ BFD_ASSERT (elf_section_data (sgot) != NULL);
+ g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
+ BFD_ASSERT (g != NULL);
- gp = _bfd_get_gp_value (output_bfd);
+ if (sgotp)
+ *sgotp = sgot;
+ return g;
+}
- rel = relocs;
- relend = relocs + input_section->reloc_count;
- for (; rel < relend; rel++)
- {
- int r_type;
- reloc_howto_type *howto;
- unsigned long r_symndx;
- bfd_vma addend;
- struct elf_link_hash_entry *h;
- asection *sec;
- Elf_Internal_Sym *sym;
- struct mips_elf_link_hash_entry *mh;
- int other;
- bfd_reloc_status_type r;
+/* Sign-extend VALUE, which has the indicated number of BITS. */
- r_type = ELF32_R_TYPE (rel->r_info);
- if (r_type == R_MIPS_GNU_VTINHERIT
- || r_type == R_MIPS_GNU_VTENTRY)
- continue;
- if ((r_type < 0 || r_type >= (int) R_MIPS_max)
-/* start-sanitize-sky */
- && r_type != R_MIPS_DVP_11_PCREL
- && r_type != R_MIPS_DVP_27_S4
-/* end-sanitize-sky */
- && r_type != R_MIPS16_26
- && r_type != R_MIPS16_GPREL)
- {
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
- if (r_type == R_MIPS16_26)
- howto = &elf_mips16_jump_howto;
- else if (r_type == R_MIPS16_GPREL)
- howto = &elf_mips16_gprel_howto;
-/* start-sanitize-sky */
- else if (r_type == R_MIPS_DVP_11_PCREL)
- howto = &elf_mips_dvp_11_pcrel_howto;
- else if (r_type == R_MIPS_DVP_27_S4)
- howto = &elf_mips_dvp_27_s4_howto;
-/* end-sanitize-sky */
- else
- howto = elf_mips_howto_table + r_type;
-
- if (dynobj != NULL
- && (r_type == R_MIPS_CALL16
- || r_type == R_MIPS_GOT16
- || r_type == R_MIPS_CALL_HI16
- || r_type == R_MIPS_CALL_LO16
- || r_type == R_MIPS_GOT_HI16
- || r_type == R_MIPS_GOT_LO16))
- {
- /* We need the .got section. */
- if (sgot == NULL)
- {
- sgot = bfd_get_section_by_name (dynobj, ".got");
- BFD_ASSERT (sgot != NULL);
- BFD_ASSERT (elf_section_data (sgot) != NULL);
- g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
- BFD_ASSERT (g != NULL);
- }
- }
+static bfd_vma
+mips_elf_sign_extend (value, bits)
+ bfd_vma value;
+ int bits;
+{
+ if (value & (1 << (bits - 1)))
+ /* VALUE is negative. */
+ value |= ((bfd_vma) - 1) << bits;
+
+ return value;
+}
- r_symndx = ELF32_R_SYM (rel->r_info);
+/* Return non-zero if the indicated VALUE has overflowed the maximum
+ range expressable by a signed number with the indicated number of
+ BITS. */
- /* Mix in the change in GP address for a GP relative reloc. */
- if (r_type != R_MIPS_GPREL16
- && r_type != R_MIPS_LITERAL
- && r_type != R_MIPS_GPREL32
- && r_type != R_MIPS16_GPREL)
- addend = 0;
- else
- {
- if (gp == 0)
- {
- if (! ((*info->callbacks->reloc_dangerous)
- (info,
- _("GP relative relocation when GP not defined"),
- input_bfd, input_section,
- rel->r_offset)))
- return false;
- /* Only give the error once per link. */
- gp = 4;
- _bfd_set_gp_value (output_bfd, gp);
- }
+static boolean
+mips_elf_overflow_p (value, bits)
+ bfd_vma value;
+ int bits;
+{
+ bfd_signed_vma svalue = (bfd_signed_vma) value;
- if (r_symndx < extsymoff
- || (elf_bad_symtab (input_bfd)
- && local_sections[r_symndx] != NULL))
- {
- /* This is a relocation against a section. The current
- addend in the instruction is the difference between
- INPUT_SECTION->vma and the GP value of INPUT_BFD. We
- must change this to be the difference between the
- final definition (which will end up in RELOCATION)
- and the GP value of OUTPUT_BFD (which is in GP). */
- addend = elf_gp (input_bfd) - gp;
- }
- else if (! info->relocateable)
- {
- /* We are doing a final link. The current addend in the
- instruction is simply the desired offset into the
- symbol (normally zero). We want the instruction to
- hold the difference between the final definition of
- the symbol (which will end up in RELOCATION) and the
- GP value of OUTPUT_BFD (which is in GP). */
- addend = - gp;
- }
- else
- {
- /* We are generating relocateable output, and we aren't
- going to define this symbol, so we just leave the
- instruction alone. */
- addend = 0;
- }
- }
+ if (svalue > (1 << (bits - 1)) - 1)
+ /* The value is too big. */
+ return true;
+ else if (svalue < -(1 << (bits - 1)))
+ /* The value is too small. */
+ return true;
+
+ /* All is well. */
+ return false;
+}
- h = NULL;
- sym = NULL;
- sec = NULL;
- if (info->relocateable)
- {
- /* This is a relocateable link. We don't have to change
- anything, unless the reloc is against a section symbol,
- in which case we have to adjust according to where the
- section symbol winds up in the output section. */
- if (r_symndx >= locsymcount
- || (elf_bad_symtab (input_bfd)
- && local_sections[r_symndx] == NULL))
- r = bfd_reloc_ok;
- else
- {
- sym = local_syms + r_symndx;
- if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
- r = bfd_reloc_ok;
- else
- {
- sec = local_sections[r_symndx];
-
- /* It would be logical to add sym->st_value here,
- but Irix 5 sometimes generates a garbage symbol
- value. */
- addend += sec->output_offset;
-
- /* If this is HI16 or GOT16 with an associated LO16,
- adjust the addend accordingly. Otherwise, just
- relocate. */
- if (r_type == R_MIPS_64 && bfd_big_endian (input_bfd))
- r = _bfd_relocate_contents (howto, input_bfd,
- addend,
- contents + rel->r_offset + 4);
- else if (r_type != R_MIPS_HI16 && r_type != R_MIPS_GOT16)
- r = _bfd_relocate_contents (howto, input_bfd,
- addend,
- contents + rel->r_offset);
- else
- {
- Elf_Internal_Rela *lorel;
-
- /* As a GNU extension, permit an arbitrary
- number of R_MIPS_HI16 relocs before the
- R_MIPS_LO16 reloc. This permits gcc to emit
- the HI and LO relocs itself. */
- if (r_type == R_MIPS_GOT16)
- lorel = rel + 1;
- else
- {
- for (lorel = rel + 1;
- (lorel < relend
- && (ELF32_R_TYPE (lorel->r_info)
- == R_MIPS_HI16));
- lorel++)
- ;
- }
- if (lorel < relend
- && ELF32_R_TYPE (lorel->r_info) == R_MIPS_LO16)
- {
- mips_elf_relocate_hi16 (input_bfd, rel, lorel,
- contents, addend);
- r = bfd_reloc_ok;
- }
- else
- r = _bfd_relocate_contents (howto, input_bfd,
- addend,
- contents + rel->r_offset);
- }
- }
- }
- }
- else
- {
- bfd_vma relocation;
- boolean local;
- boolean undefined_error;
-
- /* This is a final link. */
- undefined_error = false;
- sym = NULL;
- if (r_symndx < extsymoff
- || (elf_bad_symtab (input_bfd)
- && local_sections[r_symndx] != NULL))
- {
- local = true;
- sym = local_syms + r_symndx;
- sec = local_sections[r_symndx];
- relocation = (sec->output_section->vma
- + sec->output_offset);
-
- /* It would be logical to always add sym->st_value here,
- but Irix 5 sometimes generates a garbage symbol
- value. */
- if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
- relocation += sym->st_value;
-
- /* mips16 text labels should be treated as odd. */
- if (sym->st_other == STO_MIPS16)
- ++relocation;
- }
- else
- {
- long indx;
+/* Calculate the %high function. */
- local = false;
- indx = r_symndx - extsymoff;
- h = elf_sym_hashes (input_bfd)[indx];
- while (h->root.type == bfd_link_hash_indirect
- || h->root.type == bfd_link_hash_warning)
- h = (struct elf_link_hash_entry *) h->root.u.i.link;
- if (strcmp (h->root.root.string, "_gp_disp") == 0)
- {
- if (gp == 0)
- {
- if (! ((*info->callbacks->reloc_dangerous)
- (info,
- _("_gp_disp used when GP not defined"),
- input_bfd, input_section,
- rel->r_offset)))
- return false;
- /* Only give the error once per link. */
- gp = 4;
- _bfd_set_gp_value (output_bfd, gp);
- relocation = 0;
- }
- else
- {
- sec = input_section;
- if (sec->output_section != NULL)
- relocation = (gp
- - (rel->r_offset
- + sec->output_section->vma
- + sec->output_offset));
- else
- relocation = gp - rel->r_offset;
- if (r_type == R_MIPS_LO16)
- relocation += 4;
- }
- }
- else if (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
- {
- sec = h->root.u.def.section;
- if (sec->output_section == NULL)
- relocation = 0;
- else
- relocation = (h->root.u.def.value
- + sec->output_section->vma
- + sec->output_offset);
- }
- else if (h->root.type == bfd_link_hash_undefweak)
- relocation = 0;
- else if (info->shared && ! info->symbolic)
- relocation = 0;
- else if (strcmp (h->root.root.string, "_DYNAMIC_LINK") == 0)
- {
- /* If this is a dynamic link, we should have created
- a _DYNAMIC_LINK symbol in
- mips_elf_create_dynamic_sections. Otherwise, we
- should define the symbol with a value of 0.
- FIXME: It should probably get into the symbol
- table somehow as well. */
- BFD_ASSERT (! info->shared);
- BFD_ASSERT (bfd_get_section_by_name (output_bfd,
- ".dynamic") == NULL);
- relocation = 0;
- }
- else
- {
- if (! ((*info->callbacks->undefined_symbol)
- (info, h->root.root.string, input_bfd,
- input_section, rel->r_offset)))
- return false;
- undefined_error = true;
- relocation = 0;
- }
- }
+static bfd_vma
+mips_elf_high (value)
+ bfd_vma value;
+{
+ return ((value + (bfd_vma) 0x8000) >> 16) & 0xffff;
+}
- mh = (struct mips_elf_link_hash_entry *) h;
- if (h != NULL)
- other = h->other;
- else if (sym != NULL)
- other = sym->st_other;
- else
- other = 0;
-
- /* If this function has an fn_stub, then it is a mips16
- function which needs a stub if it is called by a 32 bit
- function. If this reloc is anything other than a 16 bit
- call, redirect the reloc to the stub. We don't redirect
- relocs from other stub functions. */
- if (r_type != R_MIPS16_26
- && ((mh != NULL
- && mh->fn_stub != NULL)
- || (mh == NULL
- && elf_tdata (input_bfd)->local_stubs != NULL
- && elf_tdata (input_bfd)->local_stubs[r_symndx] != NULL))
- && strncmp (bfd_get_section_name (input_bfd, input_section),
- FN_STUB, sizeof FN_STUB - 1) != 0
- && strncmp (bfd_get_section_name (input_bfd, input_section),
- CALL_STUB, sizeof CALL_STUB - 1) != 0
- && strncmp (bfd_get_section_name (input_bfd, input_section),
- CALL_FP_STUB, sizeof CALL_FP_STUB - 1) != 0)
- {
- if (mh != NULL)
- {
- BFD_ASSERT (mh->need_fn_stub);
- relocation = (mh->fn_stub->output_section->vma
- + mh->fn_stub->output_offset);
- }
- else
- {
- asection *fn_stub;
+/* Calculate the %higher function. */
- fn_stub = elf_tdata (input_bfd)->local_stubs[r_symndx];
- relocation = (fn_stub->output_section->vma
- + fn_stub->output_offset);
- }
+static bfd_vma
+mips_elf_higher (value)
+ bfd_vma value;
+{
+#ifdef BFD64
+ return ((value + (bfd_vma) 0x80008000) >> 32) & 0xffff;
+#else
+ abort ();
+ return (bfd_vma) -1;
+#endif
+}
- /* RELOCATION now points to 32 bit code. */
- other = 0;
- }
+/* Calculate the %highest function. */
- /* If this function has a call_stub, then it is called by a
- mips16 function; the call needs to go through a stub if
- this function is a 32 bit function. If this reloc is a
- 16 bit call, and the symbol is not a 16 bit function,
- then redirect the reloc to the stub. Note that we don't
- need to worry about calling the function through a
- function pointer; such calls are handled by routing
- through a special mips16 routine. We don't have to check
- whether this call is from a stub; it can't be, because a
- stub contains 32 bit code, and hence can not have a 16
- bit reloc. */
- if (r_type == R_MIPS16_26
- && mh != NULL
- && (mh->call_stub != NULL || mh->call_fp_stub != NULL)
- && other != STO_MIPS16)
- {
- asection *stub;
+static bfd_vma
+mips_elf_highest (value)
+ bfd_vma value;
+{
+#ifdef BFD64
+ return ((value + (bfd_vma) 0x800080008000) > 48) & 0xffff;
+#else
+ abort ();
+ return (bfd_vma) -1;
+#endif
+}
- /* If both call_stub and call_fp_stub are defined, we
- can figure out which one to use by seeing which one
- appears in the input file. */
- if (mh->call_stub != NULL && mh->call_fp_stub != NULL)
- {
- asection *o;
+/* Returns the GOT index for the global symbol indicated by H. */
- stub = NULL;
- for (o = input_bfd->sections; o != NULL; o = o->next)
- {
- if (strncmp (bfd_get_section_name (input_bfd, o),
- CALL_FP_STUB, sizeof CALL_FP_STUB - 1) == 0)
- {
- stub = mh->call_fp_stub;
- break;
- }
- }
- if (stub == NULL)
- stub = mh->call_stub;
- }
- else if (mh->call_stub != NULL)
- stub = mh->call_stub;
- else
- stub = mh->call_fp_stub;
+static bfd_vma
+mips_elf_global_got_index (abfd, h)
+ bfd *abfd;
+ struct elf_link_hash_entry *h;
+{
+ bfd_vma index;
+ asection *sgot;
+ struct mips_got_info *g;
- BFD_ASSERT (stub->_raw_size > 0);
- relocation = stub->output_section->vma + stub->output_offset;
- }
+ g = mips_elf_got_info (abfd, &sgot);
- if (r_type == R_MIPS_HI16)
- {
- Elf_Internal_Rela *lorel;
-
- /* As a GNU extension, permit an arbitrary number of
- R_MIPS_HI16 relocs before the R_MIPS_LO16 reloc.
- This permits gcc to emit the HI and LO relocs itself. */
- for (lorel = rel + 1;
- (lorel < relend
- && ELF32_R_TYPE (lorel->r_info) == R_MIPS_HI16);
- lorel++)
- ;
- if (lorel < relend
- && ELF32_R_TYPE (lorel->r_info) == R_MIPS_LO16)
- {
- mips_elf_relocate_hi16 (input_bfd, rel, lorel,
- contents, relocation + addend);
- r = bfd_reloc_ok;
- }
- else
- r = _bfd_final_link_relocate (howto, input_bfd, input_section,
- contents, rel->r_offset,
- relocation, addend);
- }
- else if (r_type == R_MIPS_GOT16 && local)
- {
- /* GOT16 must also have an associated LO16 in the local
- case. In this case, the addend is extracted and the
- section in which the referenced object is determined.
- Then the final address of the object is computed and
- the GOT entry for the hipage (an aligned 64kb chunk)
- is added to .got section if needed. The offset field
- of the GOT16-relocated instruction is replaced by the
- index of this GOT entry for the hipage. */
- if ((rel + 1) < relend
- && ELF32_R_TYPE ((rel + 1)->r_info) == R_MIPS_LO16)
- {
- if (! mips_elf_relocate_got_local (output_bfd, input_bfd,
- sgot, rel, rel + 1,
- contents,
- relocation + addend))
- return false;
- r = bfd_reloc_ok;
- }
- else
- r = bfd_reloc_outofrange;
- }
- else if (r_type == R_MIPS_CALL16
- || r_type == R_MIPS_GOT16
- || r_type == R_MIPS_CALL_LO16
- || r_type == R_MIPS_GOT_LO16)
- {
- bfd_vma offset;
-
- /* This symbol must be registered as a global symbol
- having the corresponding got entry. */
- BFD_ASSERT (h->got.offset != (bfd_vma) -1);
-
- offset = (h->dynindx - g->global_gotsym + g->local_gotno) * 4;
- BFD_ASSERT (g->local_gotno <= offset
- && offset < sgot->_raw_size);
- bfd_put_32 (output_bfd, relocation + addend,
- sgot->contents + offset);
- offset = (sgot->output_section->vma + sgot->output_offset
- + offset - gp);
- mips_elf_relocate_global_got (input_bfd, rel, contents,
- offset);
- r = bfd_reloc_ok;
- }
- else if (r_type == R_MIPS_CALL_HI16
- || r_type == R_MIPS_GOT_HI16)
- {
- bfd_vma offset;
-
- /* This must be a global symbol with a got entry. The
- next reloc must be the corresponding LO16 reloc. */
- BFD_ASSERT (h != NULL && h->got.offset != (bfd_vma) -1);
- BFD_ASSERT ((rel + 1) < relend);
- BFD_ASSERT ((int) ELF32_R_TYPE ((rel + 1)->r_info)
- == (r_type == R_MIPS_CALL_HI16
- ? (int) R_MIPS_CALL_LO16
- : (int) R_MIPS_GOT_LO16));
-
- offset = (h->dynindx - g->global_gotsym + g->local_gotno) * 4;
- BFD_ASSERT (g->local_gotno <= offset
- && offset < sgot->_raw_size);
- bfd_put_32 (output_bfd, relocation + addend,
- sgot->contents + offset);
- offset = (sgot->output_section->vma + sgot->output_offset
- + offset - gp);
- mips_elf_relocate_hi16 (input_bfd, rel, rel + 1, contents,
- offset);
- r = bfd_reloc_ok;
- }
- else if (r_type == R_MIPS_REL32
- || r_type == R_MIPS_32)
- {
- Elf_Internal_Rel outrel;
- Elf32_crinfo cptrel;
- bfd_byte *cr;
-
- if ((info->shared
- || (elf_hash_table (info)->dynamic_sections_created
- && h != NULL
- && ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)
- == 0)))
- && (input_section->flags & SEC_ALLOC) != 0)
- {
- boolean skip;
+ /* Once we determine the global GOT entry with the lowest dynamic
+ symbol table index, we must put all dynamic symbols with greater
+ indices into the GOT. That makes it easy to calculate the GOT
+ offset. */
+ BFD_ASSERT (h->dynindx >= g->global_gotsym->dynindx);
+ index = ((h->dynindx - g->global_gotsym->dynindx + g->local_gotno)
+ * MIPS_ELF_GOT_SIZE (abfd));
+ BFD_ASSERT (index < sgot->_raw_size);
- /* When generating a shared object, these
- relocations are copied into the output file to be
- resolved at run time. */
- if (sreloc == NULL)
- {
- sreloc = bfd_get_section_by_name (dynobj, ".rel.dyn");
- BFD_ASSERT (sreloc != NULL);
- }
+ return index;
+}
- skip = false;
+/* Returns the offset for the entry at the INDEXth position
+ in the GOT. */
- if (elf_section_data (input_section)->stab_info == NULL)
- outrel.r_offset = rel->r_offset;
- else
- {
- bfd_vma off;
-
- off = (_bfd_stab_section_offset
- (output_bfd, &elf_hash_table (info)->stab_info,
- input_section,
- &elf_section_data (input_section)->stab_info,
- rel->r_offset));
- if (off == (bfd_vma) -1)
- skip = true;
- outrel.r_offset = off;
- }
+static bfd_vma
+mips_elf_got_offset_from_index (dynobj, output_bfd, index)
+ bfd *dynobj;
+ bfd *output_bfd;
+ bfd_vma index;
+{
+ asection *sgot;
+ bfd_vma gp;
+ char *error_message;
- outrel.r_offset += (input_section->output_section->vma
- + input_section->output_offset);
+ sgot = mips_elf_got_section (dynobj);
+ gp = _bfd_get_gp_value (output_bfd);
+ return (sgot->output_section->vma + sgot->output_offset + index -
+ gp);
+}
- addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
+/* If H is a symbol that needs a global GOT entry, but has a dynamic
+ symbol table index lower than any we've seen to date, record it for
+ posterity. */
- if (skip)
- memset (&outrel, 0, sizeof outrel);
- else if (h != NULL
- && (! info->symbolic
- || (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) == 0))
- {
- BFD_ASSERT (h->dynindx != -1);
- outrel.r_info = ELF32_R_INFO (h->dynindx, R_MIPS_REL32);
- sec = input_section;
- }
- else
- {
- long indx;
+static boolean
+mips_elf_record_global_got_symbol (h, info, g)
+ struct elf_link_hash_entry *h;
+ struct bfd_link_info *info;
+ struct mips_got_info *g;
+{
+ /* A global symbol in the GOT must also be in the dynamic symbol
+ table. */
+ if (h->dynindx == -1
+ && !bfd_elf32_link_record_dynamic_symbol (info, h))
+ return false;
+
+ /* If we've already marked this entry as need GOT space, we don't
+ need to do it again. */
+ if (h->got.offset != (bfd_vma) - 1)
+ return true;
- if (h == NULL)
- sec = local_sections[r_symndx];
- else
- {
- BFD_ASSERT (h->root.type == bfd_link_hash_defined
- || (h->root.type
- == bfd_link_hash_defweak));
- sec = h->root.u.def.section;
- }
- if (sec != NULL && bfd_is_abs_section (sec))
- indx = 0;
- else if (sec == NULL || sec->owner == NULL)
- {
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
- else
- {
- asection *osec;
+ /* By setting this to a value other than -1, we are indicating that
+ there needs to be a GOT entry for H. */
+ h->got.offset = 0;
- osec = sec->output_section;
- indx = elf_section_data (osec)->dynindx;
- if (indx == 0)
- abort ();
- }
+ return true;
+}
- outrel.r_info = ELF32_R_INFO (indx, R_MIPS_REL32);
- addend += relocation;
- }
+/* This structure is passed to mips_elf_sort_hash_table_f when sorting
+ the dynamic symbols. */
+
+struct mips_elf_hash_sort_data
+{
+ /* The symbol in the global GOT with the lowest dynamic symbol table
+ index. */
+ struct elf_link_hash_entry *low;
+ /* The least dynamic symbol table index corresponding to a symbol
+ with a GOT entry. */
+ long min_got_dynindx;
+ /* The greatest dynamic symbol table index not corresponding to a
+ symbol without a GOT entry. */
+ long max_non_got_dynindx;
+};
- if (! skip)
- bfd_put_32 (output_bfd, addend, contents + rel->r_offset);
+/* If H needs a GOT entry, assign it the highest available dynamic
+ index. Otherwise, assign it the lowest available dynamic
+ index. */
- bfd_elf32_swap_reloc_out (output_bfd, &outrel,
- (((Elf32_External_Rel *)
- sreloc->contents)
- + sreloc->reloc_count));
- ++sreloc->reloc_count;
+static boolean
+mips_elf_sort_hash_table_f (h, data)
+ struct mips_elf_link_hash_entry *h;
+ PTR data;
+{
+ struct mips_elf_hash_sort_data *hsd
+ = (struct mips_elf_hash_sort_data *) data;
- if (! skip && SGI_COMPAT (output_bfd))
- {
- if (scpt == NULL)
- continue;
+ /* Symbols without dynamic symbol table entries aren't interesting
+ at all. */
+ if (h->root.dynindx == -1)
+ return true;
- /* Make an entry of compact relocation info. */
- mips_elf_set_cr_format (cptrel, CRF_MIPS_LONG);
- cptrel.vaddr = (rel->r_offset
- + input_section->output_section->vma
- + input_section->output_offset);
- if (r_type == R_MIPS_REL32)
- mips_elf_set_cr_type (cptrel, CRT_MIPS_REL32);
- else
- mips_elf_set_cr_type (cptrel, CRT_MIPS_WORD);
- mips_elf_set_cr_dist2to (cptrel, 0);
- cptrel.konst = addend;
-
- cr = (scpt->contents
- + sizeof (Elf32_External_compact_rel));
- bfd_elf32_swap_crinfo_out (output_bfd, &cptrel,
- ((Elf32_External_crinfo *) cr
- + scpt->reloc_count));
- ++scpt->reloc_count;
- }
+ if (h->root.got.offset != 0)
+ h->root.dynindx = hsd->max_non_got_dynindx++;
+ else
+ {
+ h->root.dynindx = --hsd->min_got_dynindx;
+ hsd->low = (struct elf_link_hash_entry *) h;
+ }
- /* This reloc will be computed at runtime, so
- there's no need to do anything now. */
- continue;
- }
- else
- r = _bfd_final_link_relocate (howto, input_bfd, input_section,
- contents, rel->r_offset,
- relocation, addend);
- }
- else if (r_type == R_MIPS_64)
- {
- bfd_size_type addr;
- unsigned long val;
-
- /* Do a 32 bit relocation, and sign extend to 64 bits. */
- addr = rel->r_offset;
- if (bfd_big_endian (input_bfd))
- addr += 4;
- r = _bfd_final_link_relocate (howto, input_bfd, input_section,
- contents, addr, relocation,
- addend);
- val = bfd_get_32 (input_bfd, contents + addr);
- if ((val & 0x80000000) != 0)
- val = 0xffffffff;
- else
- val = 0;
- addr = rel->r_offset;
- if (bfd_little_endian (input_bfd))
- addr += 4;
- bfd_put_32 (input_bfd, val, contents + addr);
- }
- else if (r_type == R_MIPS_26 && other == STO_MIPS16)
- {
- unsigned long insn;
+ return true;
+}
- /* This is a jump to a mips16 routine from a mips32
- routine. We need to change jal into jalx. */
- insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
- if (((insn >> 26) & 0x3f) != 0x3
- && ((insn >> 26) & 0x3f) != 0x1d)
- {
- (*_bfd_error_handler)
- (_("%s: %s+0x%lx: jump to mips16 routine which is not jal"),
- bfd_get_filename (input_bfd),
- input_section->name,
- (unsigned long) rel->r_offset);
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
- insn = (insn & 0x3ffffff) | (0x1d << 26);
- bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
- r = _bfd_final_link_relocate (howto, input_bfd, input_section,
- contents, rel->r_offset,
- relocation, addend);
- }
- else if (r_type == R_MIPS16_26)
- {
- /* It's easiest to do the normal relocation, and then
- dig out the instruction and swap the first word the
- way the mips16 expects it. If this is little endian,
- though, we need to swap the two words first, and then
- swap them back again later, so that the address looks
- right. */
-
- if (bfd_little_endian (input_bfd))
- {
- unsigned long insn;
+/* Sort the dynamic symbol table so that symbols that need GOT entries
+ appear towards the end. This reduces the amount of GOT space
+ required. */
+
+static boolean
+mips_elf_sort_hash_table (info)
+ struct bfd_link_info *info;
+{
+ struct mips_elf_hash_sort_data hsd;
+ struct mips_got_info *g;
+ bfd *dynobj;
+
+ dynobj = elf_hash_table (info)->dynobj;
+
+ hsd.low = NULL;
+ hsd.min_got_dynindx = elf_hash_table (info)->dynsymcount;
+ hsd.max_non_got_dynindx = 1;
+ mips_elf_link_hash_traverse (((struct mips_elf_link_hash_table *)
+ elf_hash_table (info)),
+ mips_elf_sort_hash_table_f,
+ &hsd);
+
+ /* There shoud have been enough room in the symbol table to
+ accomodate both the GOT and non-GOT symbols. */
+ BFD_ASSERT (hsd.min_got_dynindx == hsd.max_non_got_dynindx);
+
+ /* Now we know which dynamic symbol has the lowest dynamic symbol
+ table index in the GOT. */
+ g = mips_elf_got_info (dynobj, NULL);
+ g->global_gotsym = hsd.low;
+
+ return true;
+}
+
+/* Create a local GOT entry for VALUE. Return the index of the entry,
+ or -1 if it could not be created. */
+
+static bfd_vma
+mips_elf_create_local_got_entry (abfd, g, sgot, value)
+ bfd *abfd;
+ struct mips_got_info *g;
+ asection *sgot;
+ bfd_vma value;
+{
+ if (g->assigned_gotno >= g->local_gotno)
+ {
+ /* We didn't allocate enough space in the GOT. */
+ (*_bfd_error_handler)
+ (_("not enough GOT space for local GOT entries"));
+ bfd_set_error (bfd_error_bad_value);
+ return (bfd_vma) -1;
+ }
+
+ MIPS_ELF_PUT_WORD (abfd, value,
+ (sgot->contents
+ + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno));
+ return MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno++;
+}
+
+/* Returns the GOT offset at which the indicated address can be found.
+ If there is not yet a GOT entry for this value, create one. Returns
+ -1 if no satisfactory GOT offset can be found. */
+
+static bfd_vma
+mips_elf_local_got_index (abfd, info, value)
+ bfd *abfd;
+ struct bfd_link_info *info;
+ bfd_vma value;
+{
+ asection *sgot;
+ struct mips_got_info *g;
+ bfd_byte *entry;
+
+ g = mips_elf_got_info (elf_hash_table (info)->dynobj, &sgot);
+
+ /* Look to see if we already have an appropriate entry. */
+ for (entry = (sgot->contents
+ + MIPS_ELF_GOT_SIZE (abfd) * MIPS_RESERVED_GOTNO);
+ entry != sgot->contents + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno;
+ entry += MIPS_ELF_GOT_SIZE (abfd))
+ {
+ bfd_vma address = MIPS_ELF_GET_WORD (abfd, entry);
+ if (address == value)
+ return entry - sgot->contents;
+ }
+
+ return mips_elf_create_local_got_entry (abfd, g, sgot, value);
+}
+
+/* Find a GOT entry that is within 32KB of the VALUE. These entries
+ are supposed to be placed at small offsets in the GOT, i.e.,
+ within 32KB of GP. Return the index into the GOT for this page,
+ and store the offset from this entry to the desired address in
+ OFFSETP, if it is non-NULL. */
+
+static bfd_vma
+mips_elf_got_page (abfd, info, value, offsetp)
+ bfd *abfd;
+ struct bfd_link_info *info;
+ bfd_vma value;
+ bfd_vma *offsetp;
+{
+ asection *sgot;
+ struct mips_got_info *g;
+ bfd_byte *entry;
+ bfd_byte *last_entry;
+ bfd_vma index;
+ bfd_vma address;
+
+ g = mips_elf_got_info (elf_hash_table (info)->dynobj, &sgot);
+
+ /* Look to see if we aleady have an appropriate entry. */
+ last_entry = sgot->contents + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno;
+ for (entry = (sgot->contents
+ + MIPS_ELF_GOT_SIZE (abfd) * MIPS_RESERVED_GOTNO);
+ entry != last_entry;
+ entry += MIPS_ELF_GOT_SIZE (abfd))
+ {
+ address = MIPS_ELF_GET_WORD (abfd, entry);
+
+ if (!mips_elf_overflow_p (value - address, 16))
+ {
+ /* This entry will serve as the page pointer. We can add a
+ 16-bit number to it to get the actual address. */
+ index = entry - sgot->contents;
+ break;
+ }
+ }
+
+ /* If we didn't have an appropriate entry, we create one now. */
+ if (entry == last_entry)
+ index = mips_elf_create_local_got_entry (abfd, g, sgot, value);
+
+ if (offsetp)
+ {
+ address = MIPS_ELF_GET_WORD (abfd, entry);
+ *offsetp = value - address;
+ }
+
+ return index;
+}
+
+/* Find a GOT entry whose higher-order 16 bits are the same as those
+ for value. Return the index into the GOT for this entry. */
+
+static bfd_vma
+mips_elf_got16_entry (abfd, info, value)
+ bfd *abfd;
+ struct bfd_link_info *info;
+ bfd_vma value;
+{
+ asection *sgot;
+ struct mips_got_info *g;
+ bfd_byte *entry;
+ bfd_byte *last_entry;
+ bfd_vma index;
+ bfd_vma address;
+
+ value &= 0xffff0000;
+ g = mips_elf_got_info (elf_hash_table (info)->dynobj, &sgot);
+
+ /* Look to see if we already have an appropriate entry. */
+ last_entry = sgot->contents + MIPS_ELF_GOT_SIZE (abfd) * g->assigned_gotno;
+ for (entry = (sgot->contents
+ + MIPS_ELF_GOT_SIZE (abfd) * MIPS_RESERVED_GOTNO);
+ entry != last_entry;
+ entry += MIPS_ELF_GOT_SIZE (abfd))
+ {
+ address = MIPS_ELF_GET_WORD (abfd, entry);
+ if (address & 0xffff0000 == value)
+ {
+ /* This entry has the right high-order 16 bits. */
+ index = MIPS_ELF_GOT_SIZE (abfd) * (entry - sgot->contents);
+ break;
+ }
+ }
+
+ /* If we didn't have an appropriate entry, we create one now. */
+ if (entry == last_entry)
+ index = mips_elf_create_local_got_entry (abfd, g, sgot, value);
+
+ return index;
+}
+
+/* Sets *ADDENDP to the addend for the first R_MIPS_LO16 relocation
+ found, beginning with RELOCATION. RELEND is one-past-the-end of
+ the relocation table. */
+
+static boolean
+mips_elf_next_lo16_addend (relocation, relend, addendp)
+ const Elf_Internal_Rela *relocation;
+ const Elf_Internal_Rela *relend;
+ bfd_vma *addendp;
+{
+ /* According to the MIPS ELF ABI, the R_MIPS_LO16 relocation must be
+ immediately following. However, for the IRIX6 ABI, the next
+ relocation may be a composed relocation consisting of several
+ relocations for the same address. In that case, the R_MIPS_LO16
+ relo!scation may occur as one of these. We permit a similar
+ extension in general, as that is useful for GCC. */
+ while (relocation < relend)
+ {
+ if (ELF32_R_TYPE (relocation->r_info) == R_MIPS_LO16)
+ {
+ *addendp = relocation->r_addend;
+ return true;
+ }
+
+ ++relocation;
+ }
+
+ /* We didn't find it. */
+ return false;
+}
+
+/* Create a rel.dyn relocation for the dynamic linker to resolve. The
+ relocatin is against the symbol with the dynamic symbol table index
+ DYNINDX. REL is the original relocation, which is now being made
+ dynamic. */
+
+static unsigned int
+mips_elf_create_dynamic_relocation (output_bfd, info, rel, dynindx,
+ addend, input_section)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+ const Elf_Internal_Rela *rel;
+ long dynindx;
+ bfd_vma addend;
+ asection *input_section;
+{
+ Elf_Internal_Rel outrel;
+ boolean skip;
+ asection *sreloc;
+ bfd *dynobj;
+ int r_type;
+
+ r_type = ELF32_R_TYPE (rel->r_info);
+ dynobj = elf_hash_table (info)->dynobj;
+ sreloc
+ = bfd_get_section_by_name (dynobj,
+ MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd));
+ BFD_ASSERT (sreloc != NULL);
+
+ skip = false;
+
+ /* The symbol for the relocation is the same as it was for the
+ original relocation. */
+ outrel.r_info = ELF32_R_INFO (dynindx, R_MIPS_REL32);
+
+ /* The offset for the dynamic relocation is the same as for the
+ original relocation, adjusted by the offset at which the original
+ section is output. */
+ if (elf_section_data (input_section)->stab_info == NULL)
+ outrel.r_offset = rel->r_offset;
+ else
+ {
+ bfd_vma off;
+
+ off = (_bfd_stab_section_offset
+ (output_bfd, &elf_hash_table (info)->stab_info,
+ input_section,
+ &elf_section_data (input_section)->stab_info,
+ rel->r_offset));
+ if (off == (bfd_vma) -1)
+ skip = true;
+ outrel.r_offset = off;
+ }
+ outrel.r_offset += (input_section->output_section->vma
+ + input_section->output_offset);
+
+ /* If we've decided to skip this relocation, just output an emtpy
+ record. */
+ if (skip)
+ memset (&outrel, 0, sizeof (outrel));
+
+ if (ABI_64_P (output_bfd))
+ {
+ (*get_elf_backend_data (output_bfd)->s->swap_reloc_out)
+ (output_bfd, &outrel,
+ (sreloc->contents
+ + sreloc->reloc_count * sizeof (Elf64_Mips_External_Rel)));
+ }
+ else
+ bfd_elf32_swap_reloc_out (output_bfd, &outrel,
+ (((Elf32_External_Rel *)
+ sreloc->contents)
+ + sreloc->reloc_count));
+ ++sreloc->reloc_count;
+
+ /* Make sure the output section is writable. The dynamic linker
+ will be writing to it. */
+ elf_section_data (input_section->output_section)->this_hdr.sh_flags
+ |= SHF_WRITE;
+
+ /* On IRIX5, make an entry of compact relocation info. */
+ if (! skip && IRIX_COMPAT (output_bfd) == ict_irix5)
+ {
+ asection* scpt = bfd_get_section_by_name (dynobj, ".compact_rel");
+ bfd_byte *cr;
+
+ if (scpt)
+ {
+ Elf32_crinfo cptrel;
+
+ mips_elf_set_cr_format (cptrel, CRF_MIPS_LONG);
+ cptrel.vaddr = (rel->r_offset
+ + input_section->output_section->vma
+ + input_section->output_offset);
+ if (r_type == R_MIPS_REL32)
+ mips_elf_set_cr_type (cptrel, CRT_MIPS_REL32);
+ else
+ mips_elf_set_cr_type (cptrel, CRT_MIPS_WORD);
+ mips_elf_set_cr_dist2to (cptrel, 0);
+ cptrel.konst = addend;
+
+ cr = (scpt->contents
+ + sizeof (Elf32_External_compact_rel));
+ bfd_elf32_swap_crinfo_out (output_bfd, &cptrel,
+ ((Elf32_External_crinfo *) cr
+ + scpt->reloc_count));
+ ++scpt->reloc_count;
+ }
+ }
+
+ return sreloc->reloc_count - 1;
+}
+
+/* Calculate the value produced by the RELOCATION (which comes from
+ the INPUT_BFD). The ADDEND is the addend to use for this
+ RELOCATION; RELOCATION->R_ADDEND is ignored.
+
+ The result of the relocation calculation is stored in VALUEP.
+
+ This function returns bfd_reloc_continue if the caller need take no
+ further action regarding this relocation, bfd_reloc_notsupported if
+ something goes dramatically wrong, bfd_reloc_overflow if an
+ overflow occurs, and bfd_reloc_ok to indicate success. */
+
+static bfd_reloc_status_type
+mips_elf_calculate_relocation (abfd,
+ input_bfd,
+ input_section,
+ info,
+ relocation,
+ addend,
+ howto,
+ local_syms,
+ local_sections,
+ valuep,
+ namep)
+ bfd *abfd;
+ bfd *input_bfd;
+ asection *input_section;
+ struct bfd_link_info *info;
+ const Elf_Internal_Rela *relocation;
+ bfd_vma addend;
+ reloc_howto_type *howto;
+ Elf_Internal_Sym *local_syms;
+ asection **local_sections;
+ bfd_vma *valuep;
+ const char **namep;
+{
+ /* The eventual value we will return. */
+ bfd_vma value;
+ /* The address of the symbol against which the relocation is
+ occurring. */
+ bfd_vma symbol = 0;
+ /* The final GP value to be used for the relocatable, executable, or
+ shared object file being produced. */
+ bfd_vma gp = (bfd_vma) - 1;
+ /* The place (section offset or address) of the storage unit being
+ relocated. */
+ bfd_vma p;
+ /* The value of GP used to create the relocatable object. */
+ bfd_vma gp0 = (bfd_vma) - 1;
+ /* The offset into the global offset table at which the address of
+ the relocation entry symbol, adjusted by the addend, resides
+ during execution. */
+ bfd_vma g = (bfd_vma) - 1;
+ /* The section in which the symbol referenced by the relocation is
+ located. */
+ asection *sec = NULL;
+ struct mips_elf_link_hash_entry* h = NULL;
+ /* True if the symbol referred to by this relocation is a local
+ symbol. */
+ boolean local_p;
+ /* True if the symbol referred to by this relocation is "_gp_disp". */
+ boolean gp_disp_p = false;
+ Elf_Internal_Shdr *symtab_hdr;
+ size_t extsymoff;
+ unsigned long r_symndx;
+ int r_type;
+ /* True if overflow occurred during the calculation of the
+ relocation value. */
+ boolean overflowed_p;
+
+ /* Parse the relocation. */
+ r_symndx = ELF32_R_SYM (relocation->r_info);
+ r_type = ELF32_R_TYPE (relocation->r_info);
+ p = (input_section->output_section->vma
+ + input_section->output_offset
+ + relocation->r_offset);
+
+ /* Assume that there will be no overflow. */
+ overflowed_p = false;
+
+ /* Figure out whether or not the symbol is local. */
+ symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+ if (elf_bad_symtab (input_bfd))
+ {
+ /* The symbol table does not follow the rule that local symbols
+ must come before globals. */
+ extsymoff = 0;
+ local_p = local_sections[r_symndx] != NULL;
+ }
+ else
+ {
+ extsymoff = symtab_hdr->sh_info;
+ local_p = r_symndx < extsymoff;
+ }
+
+ /* Figure out the value of the symbol. */
+ if (local_p)
+ {
+ Elf_Internal_Sym *sym;
+
+ sym = local_syms + r_symndx;
+ sec = local_sections[r_symndx];
+
+ symbol = sec->output_section->vma + sec->output_offset;
+ if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
+ symbol += sym->st_value;
+
+ /* MIPS16 text labels should be treated as odd. */
+ if (sym->st_other == STO_MIPS16)
+ ++symbol;
+
+ /* Record the name of this symbol, for our caller. */
+ *namep = bfd_elf_string_from_elf_section (input_bfd,
+ symtab_hdr->sh_link,
+ sym->st_name);
+ if (*namep = '\0')
+ *namep = bfd_section_name (input_bfd, sec);
+ }
+ else
+ {
+ /* For global symbols we look up the symbol in the hash-table. */
+ h = ((struct mips_elf_link_hash_entry *)
+ elf_sym_hashes (input_bfd) [r_symndx - extsymoff]);
+ /* Find the real hash-table entry for this symbol. */
+ while (h->root.type == bfd_link_hash_indirect
+ || h->root.type == bfd_link_hash_warning)
+ h = (struct mips_elf_link_hash_entry *) h->root.root.u.i.link;
+
+ /* Record the name of this symbol, for our caller. */
+ *namep = h->root.root.root.string;
+
+ /* See if this is the special _gp_disp symbol. Note that such a
+ symbol must always be a global symbol. */
+ if (strcmp (h->root.root.root.string, "_gp_disp") == 0)
+ {
+ /* Relocations against _gp_disp are permitted only with
+ R_MIPS_HI16 and R_MIPS_LO16 relocations. */
+ if (r_type != R_MIPS_HI16 && r_type != R_MIPS_LO16)
+ return bfd_reloc_notsupported;
+
+ gp_disp_p = true;
+ }
+
+ /* If this symbol is defined, calculate its address. */
+ if ((h->root.root.type == bfd_link_hash_defined
+ || h->root.root.type == bfd_link_hash_defweak)
+ && h->root.root.u.def.section)
+ {
+ sec = h->root.root.u.def.section;
+ if (sec->output_section)
+ symbol = (h->root.root.u.def.value
+ + sec->output_section->vma
+ + sec->output_offset);
+ else
+ symbol = h->root.root.u.def.value;
+ }
+ else
+ {
+ (*info->callbacks->undefined_symbol)
+ (info, h->root.root.root.string, input_bfd,
+ input_section, relocation->r_offset);
+ return bfd_reloc_undefined;
+ }
+ }
+
+ /* If we haven't already determined the GOT offset, or the GP value,
+ and we're going to need it, get it now. */
+ switch (r_type)
+ {
+ case R_MIPS_CALL16:
+ case R_MIPS_GOT_DISP:
+ case R_MIPS_GOT_HI16:
+ case R_MIPS_CALL_HI16:
+ case R_MIPS_GOT_LO16:
+ case R_MIPS_CALL_LO16:
+ /* Find the index into the GOT where this value is located. */
+ if (h)
+ {
+ BFD_ASSERT (addend == 0);
+ g = mips_elf_global_got_index
+ (elf_hash_table (info)->dynobj,
+ (struct elf_link_hash_entry*) h);
+ }
+ else
+ {
+ g = mips_elf_local_got_index (abfd, info, symbol + addend);
+ if (g == (bfd_vma) -1)
+ return false;
+ }
+
+ /* Convert GOT indices to actual offsets. */
+ g = mips_elf_got_offset_from_index (elf_hash_table (info)->dynobj,
+ abfd, g);
+ break;
+
+ case R_MIPS_HI16:
+ case R_MIPS_LO16:
+ case R_MIPS_GPREL16:
+ case R_MIPS_GPREL32:
+ gp0 = _bfd_get_gp_value (input_bfd);
+ gp = _bfd_get_gp_value (abfd);
+ break;
+
+ default:
+ break;
+ }
+
+ /* Figure out what kind of relocation is being performed. */
+ switch (r_type)
+ {
+ case R_MIPS_NONE:
+ return bfd_reloc_continue;
+
+ case R_MIPS_16:
+ value = symbol + mips_elf_sign_extend (addend, 16);
+ overflowed_p = mips_elf_overflow_p (value, 16);
+ break;
+
+ case R_MIPS_32:
+ case R_MIPS_REL32:
+ /* If we're creating a shared library, or this relocation is
+ against a symbol in a shared library, then we can't know
+ where the symbol will end up. So, we create a relocation
+ record in the output, and leave the job up to the dynamic
+ linker. */
+ if (info->shared || !sec->output_section)
+ {
+ unsigned int reloc_index;
+
+ BFD_ASSERT (h != NULL);
+ reloc_index
+ = mips_elf_create_dynamic_relocation (abfd,
+ info,
+ relocation,
+ h->root.dynindx,
+ addend,
+ input_section);
+ if (h->min_dyn_reloc_index == 0
+ || reloc_index < h->min_dyn_reloc_index)
+ h->min_dyn_reloc_index = reloc_index;
+ value = symbol + addend;
+ }
+ else
+ {
+ if (r_type == R_MIPS_32)
+ value = symbol + addend;
+ else
+ value = addend;
+ }
+ value &= howto->dst_mask;
+ break;
+
+ case R_MIPS_26:
+ if (local_p)
+ value = (((addend << 2) | (p & 0xf0000000)) + symbol) >> 2;
+ else
+ value = (mips_elf_sign_extend (addend << 2, 28) + symbol) >> 2;
+ value &= howto->dst_mask;
+ break;
+
+ case R_MIPS_HI16:
+ if (!gp_disp_p)
+ {
+ value = mips_elf_high (addend + symbol);
+ value &= howto->dst_mask;
+ }
+ else
+ {
+ value = mips_elf_high (addend + gp - p);
+ overflowed_p = mips_elf_overflow_p (value, 16);
+ }
+ break;
+
+ case R_MIPS_LO16:
+ if (!gp_disp_p)
+ value = (symbol + addend) & howto->dst_mask;
+ else
+ {
+ value = addend + gp - p + 4;
+ overflowed_p = mips_elf_overflow_p (value, 16);
+ }
+ break;
+
+ case R_MIPS_LITERAL:
+ /* Because we don't merge literal sections, we can handle this
+ just like R_MIPS_GPREL16. In the long run, we should merge
+ shared literals, and then we will need to additional work
+ here. */
+
+ /* Fall through. */
+
+ case R_MIPS_GPREL16:
+ if (local_p)
+ value = mips_elf_sign_extend (addend, 16) + symbol + gp0 - gp;
+ else
+ value = mips_elf_sign_extend (addend, 16) + symbol - gp;
+ overflowed_p = mips_elf_overflow_p (value, 16);
+ break;
+
+ case R_MIPS_GOT16:
+ if (local_p)
+ {
+ value = mips_elf_got16_entry (abfd, info, symbol + addend);
+ if (value == (bfd_vma) -1)
+ return false;
+ value
+ = mips_elf_got_offset_from_index (elf_hash_table (info)->dynobj,
+ abfd,
+ value);
+ overflowed_p = mips_elf_overflow_p (value, 16);
+ break;
+ }
+
+ /* Fall through. */
+
+ case R_MIPS_CALL16:
+ case R_MIPS_GOT_DISP:
+ value = g;
+ overflowed_p = mips_elf_overflow_p (value, 16);
+ break;
+
+ case R_MIPS_GPREL32:
+ value = (addend + symbol + gp0 - gp) & howto->dst_mask;
+ break;
+
+ case R_MIPS_PC16:
+ value = mips_elf_sign_extend (addend, 16) + symbol - p;
+ overflowed_p = mips_elf_overflow_p (value, 16);
+ break;
+
+ case R_MIPS_GOT_HI16:
+ case R_MIPS_CALL_HI16:
+ /* We're allowed to handle these two relocations identically.
+ The dynamic linker is allowed to handle the CALL relocations
+ differently by creating a lazy evaluation stub. */
+ value = g;
+ value = mips_elf_high (value);
+ value &= howto->dst_mask;
+ break;
+
+ case R_MIPS_GOT_LO16:
+ case R_MIPS_CALL_LO16:
+ value = g & howto->dst_mask;
+ break;
+
+ case R_MIPS_64:
+ value = (symbol + addend) & howto->dst_mask;
+ break;
+
+ case R_MIPS_GOT_PAGE:
+ value = mips_elf_got_page (abfd, info, symbol + addend, NULL);
+ if (value == (bfd_vma) -1)
+ return false;
+ value = mips_elf_got_offset_from_index (elf_hash_table (info)->dynobj,
+ abfd,
+ value);
+ overflowed_p = mips_elf_overflow_p (value, 16);
+ break;
+
+ case R_MIPS_GOT_OFST:
+ mips_elf_got_page (abfd, info, symbol + addend, &value);
+ overflowed_p = mips_elf_overflow_p (value, 16);
+ break;
+
+ case R_MIPS_SUB:
+ value = symbol - addend;
+ value &= howto->dst_mask;
+ break;
+
+ case R_MIPS_HIGHER:
+ value = mips_elf_higher (addend + symbol);
+ value &= howto->dst_mask;
+ break;
+
+ case R_MIPS_HIGHEST:
+ value = mips_elf_highest (addend + symbol);
+ value &= howto->dst_mask;
+ break;
+
+ case R_MIPS_SCN_DISP:
+ value = symbol + addend - sec->output_offset;
+ value &= howto->dst_mask;
+ break;
+
+ case R_MIPS_PJUMP:
+ case R_MIPS_JALR:
+ /* Both of these may be ignored. R_MIPS_JALR is an optimization
+ hint; we could improve performance by honoring that hint. */
+ return bfd_reloc_continue;
+
+ case R_MIPS_GNU_VTINHERIT:
+ case R_MIPS_GNU_VTENTRY:
+ /* We don't do anything with these at present. */
+ return bfd_reloc_continue;
+
+ case R_MIPS16_26:
+ case R_MIPS16_GPREL:
+ /* These relocations, used for MIPS16, are not clearly
+ documented anywhere. What do they do? */
+ return bfd_reloc_notsupported;
+
+ default:
+ /* An unrecognized relocation type. */
+ return bfd_reloc_notsupported;
+ }
+
+ /* Store the VALUE for our caller. */
+ *valuep = value;
+ return overflowed_p ? bfd_reloc_overflow : bfd_reloc_ok;
+}
+
+/* Obtain the field relocated by RELOCATION. */
+
+static bfd_vma
+mips_elf_obtain_contents (howto, relocation, input_bfd, contents)
+ reloc_howto_type *howto;
+ const Elf_Internal_Rela *relocation;
+ bfd *input_bfd;
+ bfd_byte *contents;
+{
+ bfd_vma x;
+ bfd_byte *location = contents + relocation->r_offset;
+
+ switch (bfd_get_reloc_size (howto))
+ {
+ case 0:
+ x = 0;
+ break;
+
+ case 1:
+ x = bfd_get_8 (input_bfd, location);
+ break;
+
+ case 2:
+ x = bfd_get_16 (input_bfd, location);
+ break;
+
+ case 4:
+ x = bfd_get_32 (input_bfd, location);
+ break;
+
+ case 8:
+#ifdef BFD64
+ x = bfd_get_64 (input_bfd, location);
+#else
+ abort ();
+#endif
+ break;
+
+ default:
+ abort ();
+ break;
+ }
+
+ return x;
+}
+
+/* It has been determined that the result of the RELOCATION is the
+ VALUE. Use HOWTO to place VALUE into the output file at the
+ appropriate position. The SECTION is the section to which the
+ relocatin applies.
+
+ Returns false if anything goes wrong. */
+
+static void
+mips_elf_perform_relocation (howto, relocation, value, input_bfd, contents)
+ reloc_howto_type *howto;
+ const Elf_Internal_Rela *relocation;
+ bfd_vma value;
+ bfd *input_bfd;
+ bfd_byte *contents;
+{
+ bfd_vma x;
+ bfd_byte *location = contents + relocation->r_offset;
+
+ /* Obtain the current value. */
+ x = mips_elf_obtain_contents (howto, relocation, input_bfd, contents);
+
+ /* Clear the field we are setting. */
+ x &= ~howto->dst_mask;
+
+ /* Set the field. */
+ x |= (value & howto->dst_mask);
+
+ /* Put the value into the output. */
+ switch (bfd_get_reloc_size (howto))
+ {
+ case 0:
+ x = 0;
+ break;
+
+ case 1:
+ bfd_put_8 (input_bfd, x, location);
+ break;
+
+ case 2:
+ bfd_put_16 (input_bfd, x, location);
+ break;
+
+ case 4:
+ bfd_put_32 (input_bfd, x, location);
+ break;
+
+ case 8:
+#ifdef BFD64
+ bfd_put_64 (input_bfd, x, location);
+#else
+ abort ();
+#endif
+ break;
+
+ default:
+ abort ();
+ break;
+ }
+}
+
+/* Relocate a MIPS ELF section. */
+
+boolean
+_bfd_mips_elf_relocate_section (output_bfd, info, input_bfd, input_section,
+ contents, relocs, local_syms, local_sections)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+ bfd *input_bfd;
+ asection *input_section;
+ bfd_byte *contents;
+ Elf_Internal_Rela *relocs;
+ Elf_Internal_Sym *local_syms;
+ asection **local_sections;
+{
+ const Elf_Internal_Rela *rel;
+ const Elf_Internal_Rela *relend;
+ bfd_vma addend;
+ bfd_vma last_hi16_addend;
+ boolean next_relocation_for_same_address_p = false;
+ boolean use_saved_addend_p = false;
+ boolean last_hi16_addend_valid_p = false;
+ struct elf_backend_data *bed;
+
+ bed = get_elf_backend_data (output_bfd);
+ relend = relocs + input_section->reloc_count * bed->s->int_rels_per_ext_rel;
+ for (rel = relocs; rel < relend; ++rel)
+ {
+ const char *name;
+ bfd_vma value;
+ int result;
+ reloc_howto_type *howto;
- insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
- insn = ((insn >> 16) & 0xffff) | ((insn & 0xffff) << 16);
- bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
- }
+ /* Find the relocation howto for this relocation. */
+ howto = elf_mips_howto_table + ELF32_R_TYPE (rel->r_info);
- r = _bfd_final_link_relocate (howto, input_bfd, input_section,
- contents, rel->r_offset,
- relocation, addend);
- if (r == bfd_reloc_ok)
+ if (!use_saved_addend_p)
+ {
+ Elf_Internal_Shdr *rel_hdr;
+
+ /* If these relocations were originally of the REL variety,
+ we must pull the addend out of the field that will be
+ relocated. Otherwise, we simply use the contents of the
+ RELA relocation. To determine which flavor or relocation
+ this is, we depend on the fact that the INPUT_SECTION's
+ REL_HDR is read before its REL_HDR2. */
+ rel_hdr = &elf_section_data (input_section)->rel_hdr;
+ if (rel - relocs
+ >= (rel_hdr->sh_size / rel_hdr->sh_entsize
+ * bed->s->int_rels_per_ext_rel))
+ rel_hdr = elf_section_data (input_section)->rel_hdr2;
+ if (rel_hdr->sh_entsize == MIPS_ELF_REL_SIZE (input_bfd))
+ {
+ int r_type = ELF32_R_TYPE (rel->r_info);
+
+ addend = mips_elf_obtain_contents (howto,
+ rel,
+ input_bfd,
+ contents);
+ addend &= howto->src_mask;
+
+ /* For some kinds of relocations, the ADDEND is a
+ combination of the addend stored in two different
+ relocations. */
+ if (r_type == R_MIPS_HI16 || r_type == R_MIPS_GOT16)
{
- unsigned long insn;
+ /* Scan ahead to find a matching R_MIPS_LO16
+ relocation. */
+ bfd_vma l;
+
+ if (!mips_elf_next_lo16_addend (rel, relend, &l))
+ return false;
- if (bfd_little_endian (input_bfd))
- {
- insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
- insn = ((insn >> 16) & 0xffff) | ((insn & 0xffff) << 16);
- bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
- }
+ /* Save the high-order bit for later. When we
+ encounter the R_MIPS_LO16 relocation we will need
+ them again. */
+ addend <<= 16;
+ last_hi16_addend = addend;
+ last_hi16_addend_valid_p = true;
- insn = bfd_get_16 (input_bfd, contents + rel->r_offset);
- insn = ((insn & 0xfc00)
- | ((insn & 0x1f) << 5)
- | ((insn & 0x3e0) >> 5));
- /* If this is a jump to a 32 bit routine, then make
- it jalx. */
- if (other != STO_MIPS16)
- insn |= 0x400;
- bfd_put_16 (input_bfd, insn, contents + rel->r_offset);
+ /* Compute the combined addend. */
+ addend |= l;
}
- }
- else if (r_type == R_MIPS16_GPREL)
- {
- unsigned short extend, insn;
- bfd_byte buf[4];
- unsigned long final;
-
- /* Extract the addend into buf, run the regular reloc,
- and stuff the resulting value back into the
- instructions. */
- if (rel->r_offset > input_section->_raw_size)
- r = bfd_reloc_outofrange;
- else
+ else if (r_type == R_MIPS_LO16)
{
- extend = bfd_get_16 (input_bfd, contents + rel->r_offset);
- insn = bfd_get_16 (input_bfd, contents + rel->r_offset + 2);
- bfd_put_32 (input_bfd,
- (((extend & 0x1f) << 11)
- | (extend & 0x7e0)
- | (insn & 0x1f)),
- buf);
- r = _bfd_final_link_relocate (howto, input_bfd,
- input_section, buf,
- (bfd_vma) 0, relocation,
- addend);
- final = bfd_get_32 (input_bfd, buf);
- bfd_put_16 (input_bfd,
- ((extend & 0xf800)
- | ((final >> 11) & 0x1f)
- | (final & 0x7e0)),
- contents + rel->r_offset);
- bfd_put_16 (input_bfd,
- ((insn & 0xffe0)
- | (final & 0x1f)),
- contents + rel->r_offset + 2);
+ /* Used the saved HI16 addend. */
+ if (!last_hi16_addend_valid_p)
+ return false;
+ addend |= last_hi16_addend;
}
}
else
- r = _bfd_final_link_relocate (howto, input_bfd, input_section,
- contents, rel->r_offset,
- relocation, addend);
-
- /* The jal instruction can only jump to an address which is
- divisible by 4, and it can only jump to an address with
- the same upper 4 bits as the PC. */
- if (r == bfd_reloc_ok
- && (r_type == R_MIPS16_26 || r_type == R_MIPS_26))
- {
- bfd_vma addr;
-
- addr = relocation;
- if (other == STO_MIPS16)
- addr &= ~ (bfd_vma) 1;
- addr += addend;
- if ((addr & 3) != 0
- || ((addr & 0xf0000000)
- != ((input_section->output_section->vma
- + input_section->output_offset
- + rel->r_offset)
- & 0xf0000000)))
- r = bfd_reloc_overflow;
- }
+ addend = rel->r_addend;
+ }
- /* Don't bother to report a relocation overflow for a call
- to a weak undefined symbol with a value of zero. This
- permits us to use
- if (!f) f();
- even if we aren't in range to call address zero. */
- if (r == bfd_reloc_overflow
- && (r_type == R_MIPS16_26 || r_type == R_MIPS_26)
- && relocation + addend == 0
- && h != NULL
- && h->root.type == bfd_link_hash_undefweak)
- r = bfd_reloc_ok;
-
- /* If we've already issued an error for an undefined symbol,
- don't issue another useless error. */
- if (undefined_error
- && (r == bfd_reloc_undefined || r == bfd_reloc_overflow))
- r = bfd_reloc_ok;
-
- if (SGI_COMPAT (abfd)
- && scpt != NULL
- && (input_section->flags & SEC_ALLOC) != 0)
- {
- Elf32_crinfo cptrel;
- bfd_byte *cr;
+ /* In the N32 and 64-bit ABIs there may be multiple consecutive
+ relocations for the same offset. In that case we are
+ supposed to treat the output of each relocation as the addend
+ for the next. */
+ if (rel + 1 < relend
+ && rel->r_offset == rel[1].r_offset
+ && ELF32_R_TYPE (rel[1].r_info) != R_MIPS_NONE)
+ use_saved_addend_p = true;
+ else
+ use_saved_addend_p = false;
+
+ /* Figure out what value we are supposed to relocate. */
+ switch (mips_elf_calculate_relocation (output_bfd,
+ input_bfd,
+ input_section,
+ info,
+ rel,
+ addend,
+ howto,
+ local_syms,
+ local_sections,
+ &value,
+ &name))
+ {
+ case bfd_reloc_continue:
+ /* There's nothing to do. */
+ continue;
- /* Make an entry of compact relocation info. */
- mips_elf_set_cr_format (cptrel, CRF_MIPS_LONG);
- cptrel.vaddr = (rel->r_offset
- + input_section->output_section->vma
- + input_section->output_offset);
+ case bfd_reloc_undefined:
+ return false;
- switch (r_type)
- {
- case R_MIPS_26:
- mips_elf_set_cr_type (cptrel, CRT_MIPS_JMPAD);
- /* XXX How should we set dist2to in this case. */
- mips_elf_set_cr_dist2to (cptrel, 8);
- cptrel.konst = addend + relocation;
- cr = scpt->contents + sizeof (Elf32_External_compact_rel);
- bfd_elf32_swap_crinfo_out (output_bfd, &cptrel,
- ((Elf32_External_crinfo *) cr
- + scpt->reloc_count));
- ++scpt->reloc_count;
- break;
+ case bfd_reloc_notsupported:
+ abort ();
+ break;
- case R_MIPS_GPREL16:
- case R_MIPS_LITERAL:
- case R_MIPS_GPREL32:
- mips_elf_set_cr_type (cptrel, CRT_MIPS_GPHI_LO);
- cptrel.konst = gp - cptrel.vaddr;
- mips_elf_set_cr_dist2to (cptrel, 4);
- cr = scpt->contents + sizeof (Elf32_External_compact_rel);
- bfd_elf32_swap_crinfo_out (output_bfd, &cptrel,
- ((Elf32_External_crinfo *) cr
- + scpt->reloc_count));
- ++scpt->reloc_count;
- break;
+ case bfd_reloc_overflow:
+ if (use_saved_addend_p)
+ /* Ignore overflow until we reach the last relocation for
+ a given location. */
+ ;
+ else if (!name
+ || ! ((*info->callbacks->reloc_overflow)
+ (info, name, howto->name, (bfd_vma) 0,
+ input_bfd, input_section, rel->r_offset)))
+ return false;
+
+ break;
- default:
- break;
- }
- }
+ case bfd_reloc_ok:
+ break;
+
+ default:
+ abort ();
+ break;
}
- if (r != bfd_reloc_ok)
+ /* If we've got another relocation for the address, keep going
+ until we reach the last one. */
+ if (use_saved_addend_p)
{
- switch (r)
- {
- default:
- case bfd_reloc_outofrange:
- abort ();
- case bfd_reloc_overflow:
- {
- const char *name;
-
- if (h != NULL)
- name = h->root.root.string;
- else
- {
- name = bfd_elf_string_from_elf_section (input_bfd,
- symtab_hdr->sh_link,
- sym->st_name);
- if (name == NULL)
- return false;
- if (*name == '\0')
- name = bfd_section_name (input_bfd, sec);
- }
- if (! ((*info->callbacks->reloc_overflow)
- (info, name, howto->name, (bfd_vma) 0,
- input_bfd, input_section, rel->r_offset)))
- return false;
- }
- break;
- }
+ addend = value;
+ continue;
}
+
+ /* Actually perform the relocation. */
+ mips_elf_perform_relocation (howto, rel, value, input_bfd,
+ contents);
}
return true;
also where we undo the increment of the value for a mips16 symbol. */
/*ARGSIGNORED*/
-static boolean
-mips_elf_link_output_symbol_hook (abfd, info, name, sym, input_sec)
+boolean
+_bfd_mips_elf_link_output_symbol_hook (abfd, info, name, sym, input_sec)
bfd *abfd;
struct bfd_link_info *info;
const char *name;
/* The name of the dynamic interpreter. This is put in the .interp
section. */
-#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
+#define ELF_DYNAMIC_INTERPRETER(abfd) \
+ (ABI_N32_P (abfd) ? "/usr/lib32/libc.so.1" \
+ : ABI_64_P (abfd) ? "/usr/lib64/libc.so.1" \
+ : "/usr/lib/libc.so.1")
/* Create dynamic sections when linking against a dynamic object. */
-static boolean
-mips_elf_create_dynamic_sections (abfd, info)
+boolean
+_bfd_mips_elf_create_dynamic_sections (abfd, info)
bfd *abfd;
struct bfd_link_info *info;
{
if (! mips_elf_create_got_section (abfd, info))
return false;
+ /* Create the .msym section on IRIX6. It is used by the dynamic
+ linker to speed up dynamic relocations, and to avoid computing
+ the ELF hash for symbols. */
+ if (IRIX_COMPAT (abfd) == ict_irix6
+ && !mips_elf_create_msym_section (abfd))
+ return false;
+
/* Create .stub section. */
- if (bfd_get_section_by_name (abfd, ".stub") == NULL)
+ if (bfd_get_section_by_name (abfd,
+ MIPS_ELF_STUB_SECTION_NAME (abfd)) == NULL)
{
- s = bfd_make_section (abfd, ".stub");
+ s = bfd_make_section (abfd, MIPS_ELF_STUB_SECTION_NAME (abfd));
if (s == NULL
- || ! bfd_set_section_flags (abfd, s, flags)
- || ! bfd_set_section_alignment (abfd, s, 2))
+ || ! bfd_set_section_flags (abfd, s, flags | SEC_CODE)
+ || ! bfd_set_section_alignment (abfd, s,
+ MIPS_ELF_LOG_FILE_ALIGN (abfd)))
return false;
}
- if (SGI_COMPAT (abfd)
+ if (IRIX_COMPAT (abfd) == ict_irix5
&& !info->shared
&& bfd_get_section_by_name (abfd, ".rld_map") == NULL)
{
s = bfd_make_section (abfd, ".rld_map");
if (s == NULL
|| ! bfd_set_section_flags (abfd, s, flags & ~SEC_READONLY)
- || ! bfd_set_section_alignment (abfd, s, 2))
+ || ! bfd_set_section_alignment (abfd, s,
+ MIPS_ELF_LOG_FILE_ALIGN (abfd)))
return false;
}
- if (SGI_COMPAT (abfd))
+ /* On IRIX5, we adjust add some additional symbols and change the
+ alignments of several sections. There is no ABI documentation
+ indicating that this is necessary on IRIX6, nor any evidence that
+ the linker takes such action. */
+ if (IRIX_COMPAT (abfd) == ict_irix5)
{
for (namep = mips_elf_dynsym_rtproc_names; *namep != NULL; namep++)
{
s = bfd_make_section (abfd, ".compact_rel");
if (s == NULL
|| ! bfd_set_section_flags (abfd, s, flags)
- || ! bfd_set_section_alignment (abfd, s, 2))
+ || ! bfd_set_section_alignment (abfd, s,
+ MIPS_ELF_LOG_FILE_ALIGN (abfd)))
return false;
s->_raw_size = sizeof (Elf32_External_compact_rel);
struct mips_got_info *g;
/* This function may be called more than once. */
- if (bfd_get_section_by_name (abfd, ".got") != NULL)
+ if (mips_elf_got_section (abfd))
return true;
flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
return false;
/* The first several global offset table entries are reserved. */
- s->_raw_size = MIPS_RESERVED_GOTNO * 4;
+ s->_raw_size = MIPS_RESERVED_GOTNO * MIPS_ELF_GOT_SIZE (abfd);
g = (struct mips_got_info *) bfd_alloc (abfd,
sizeof (struct mips_got_info));
if (g == NULL)
return false;
- g->global_gotsym = 0;
+ g->global_gotsym = NULL;
g->local_gotno = MIPS_RESERVED_GOTNO;
g->assigned_gotno = MIPS_RESERVED_GOTNO;
if (elf_section_data (s) == NULL)
return false;
}
elf_section_data (s)->tdata = (PTR) g;
+ elf_section_data (s)->this_hdr.sh_flags
+ |= SHF_ALLOC | SHF_WRITE | SHF_MIPS_GPREL;
return true;
}
+/* Returns the .msym section for ABFD, creating it if it does not
+ already exist. Returns NULL to indicate error. */
+
+static asection *
+mips_elf_create_msym_section (abfd)
+ bfd *abfd;
+{
+ asection *s;
+
+ s = bfd_get_section_by_name (abfd, MIPS_ELF_MSYM_SECTION_NAME (abfd));
+ if (!s)
+ {
+ s = bfd_make_section (abfd, MIPS_ELF_MSYM_SECTION_NAME (abfd));
+ if (!s
+ || !bfd_set_section_flags (abfd, s,
+ SEC_ALLOC
+ | SEC_LOAD
+ | SEC_HAS_CONTENTS
+ | SEC_LINKER_CREATED
+ | SEC_READONLY)
+ || !bfd_set_section_alignment (abfd, s,
+ MIPS_ELF_LOG_FILE_ALIGN (abfd)))
+ return NULL;
+ }
+
+ return s;
+}
+
+/* Add room for N relocations to the .rel.dyn section in ABFD. */
+
+static void
+mips_elf_allocate_dynamic_relocations (abfd, n)
+ bfd *abfd;
+ unsigned int n;
+{
+ asection *s;
+
+ s = bfd_get_section_by_name (abfd, MIPS_ELF_REL_DYN_SECTION_NAME (abfd));
+ BFD_ASSERT (s != NULL);
+
+ if (s->_raw_size == 0)
+ {
+ /* Make room for a null element. */
+ s->_raw_size += MIPS_ELF_REL_SIZE (abfd);
+ ++s->reloc_count;
+ }
+ s->_raw_size += n * MIPS_ELF_REL_SIZE (abfd);
+}
+
/* Look through the relocs for a section during the first phase, and
allocate space in the global offset table. */
-static boolean
-mips_elf_check_relocs (abfd, info, sec, relocs)
+boolean
+_bfd_mips_elf_check_relocs (abfd, info, sec, relocs)
bfd *abfd;
struct bfd_link_info *info;
asection *sec;
const Elf_Internal_Rela *rel_end;
asection *sgot;
asection *sreloc;
+ struct elf_backend_data *bed;
if (info->relocateable)
return true;
asection **n;
if (elf_bad_symtab (abfd))
- symcount = symtab_hdr->sh_size / sizeof (Elf32_External_Sym);
+ symcount = symtab_hdr->sh_size / symtab_hdr->sh_entsize;
else
symcount = symtab_hdr->sh_info;
n = (asection **) bfd_zalloc (abfd,
}
else
{
- sgot = bfd_get_section_by_name (dynobj, ".got");
+ sgot = mips_elf_got_section (dynobj);
if (sgot == NULL)
g = NULL;
else
}
sreloc = NULL;
-
- rel_end = relocs + sec->reloc_count;
- for (rel = relocs; rel < rel_end; rel++)
+ bed = get_elf_backend_data (abfd);
+ rel_end = relocs + sec->reloc_count * bed->s->int_rels_per_ext_rel;
+ for (rel = relocs; rel < rel_end; ++rel)
{
unsigned long r_symndx;
+ int r_type;
struct elf_link_hash_entry *h;
r_symndx = ELF32_R_SYM (rel->r_info);
+ r_type = ELF32_R_TYPE (rel->r_info);
if (r_symndx < extsymoff)
h = NULL;
/* Some relocs require a global offset table. */
if (dynobj == NULL || sgot == NULL)
{
- switch (ELF32_R_TYPE (rel->r_info))
+ switch (r_type)
{
case R_MIPS_GOT16:
case R_MIPS_CALL16:
elf_hash_table (info)->dynobj = dynobj = abfd;
if (! mips_elf_create_got_section (dynobj, info))
return false;
- sgot = bfd_get_section_by_name (dynobj, ".got");
- BFD_ASSERT (sgot != NULL);
- BFD_ASSERT (elf_section_data (sgot) != NULL);
- g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
- BFD_ASSERT (g != NULL);
+ g = mips_elf_got_info (dynobj, &sgot);
break;
case R_MIPS_32:
}
}
- switch (ELF32_R_TYPE (rel->r_info))
+ if (!h && (r_type == R_MIPS_CALL_LO16
+ || r_type == R_MIPS_GOT_LO16
+ || r_type == R_MIPS_GOT_DISP))
{
- case R_MIPS_CALL16:
- case R_MIPS_CALL_HI16:
- case R_MIPS_CALL_LO16:
- /* This symbol requires a global offset table entry. */
+ /* We may need a local GOT entry for this relocation. We
+ don't count R_MIPS_HI16 or R_MIPS_GOT16 relocations
+ because they are always followed by a R_MIPS_LO16
+ relocation for the value. We don't R_MIPS_GOT_PAGE
+ because we can estimate the maximum number of pages
+ needed by looking at the size of the segment.
+
+ This estimation is very conservative since we can merge
+ duplicate entries in the GOT. In order to be less
+ conservative, we could actually build the GOT here,
+ rather than in relocate_section. */
+ g->local_gotno++;
+ sgot->_raw_size += 4;
+ }
+ switch (r_type)
+ {
+ case R_MIPS_CALL16:
if (h == NULL)
{
(*_bfd_error_handler)
bfd_set_error (bfd_error_bad_value);
return false;
}
+ /* Fall through. */
- /* Make sure this symbol is output as a dynamic symbol. */
- if (h->dynindx == -1)
- {
- if (! bfd_elf32_link_record_dynamic_symbol (info, h))
- return false;
- }
-
- if (h->got.offset != (bfd_vma) -1)
- {
- /* We have already allocated space in the .got. */
- break;
- }
-
- /* Note the index of the first global got symbol in .dynsym. */
- if (g->global_gotsym == 0
- || g->global_gotsym > (unsigned long) h->dynindx)
- g->global_gotsym = h->dynindx;
-
- /* Make this symbol to have the corresponding got entry. */
- h->got.offset = 0;
+ case R_MIPS_CALL_HI16:
+ case R_MIPS_CALL_LO16:
+ /* This symbol requires a global offset table entry. */
+ if (!mips_elf_record_global_got_symbol (h, info, g))
+ return false;
/* We need a stub, not a plt entry for the undefined
function. But we record it as if it needs plt. See
case R_MIPS_GOT16:
case R_MIPS_GOT_HI16:
case R_MIPS_GOT_LO16:
+ case R_MIPS_GOT_DISP:
/* This symbol requires a global offset table entry. */
-
- if (h != NULL)
- {
- /* Make sure this symbol is output as a dynamic symbol. */
- if (h->dynindx == -1)
- {
- if (! bfd_elf32_link_record_dynamic_symbol (info, h))
- return false;
- }
-
- if (h->got.offset != (bfd_vma) -1)
- {
- /* We have already allocated space in the .got. */
- break;
- }
- /* Note the index of the first global got symbol in
- .dynsym. */
- if (g->global_gotsym == 0
- || g->global_gotsym > (unsigned long) h->dynindx)
- g->global_gotsym = h->dynindx;
-
- /* Make this symbol to be the global got symbol. */
- h->got.offset = 0;
- }
-
+ if (h && !mips_elf_record_global_got_symbol (h, info, g))
+ return false;
break;
case R_MIPS_32:
{
if (sreloc == NULL)
{
- const char *name = ".rel.dyn";
+ const char *name = MIPS_ELF_REL_DYN_SECTION_NAME (dynobj);
sreloc = bfd_get_section_by_name (dynobj, name);
if (sreloc == NULL)
}
}
if (info->shared)
- {
- /* When creating a shared object, we must copy these
- reloc types into the output file as R_MIPS_REL32
- relocs. We make room for this reloc in the
- .rel.dyn reloc section */
- if (sreloc->_raw_size == 0)
- {
- /* Add a null element. */
- sreloc->_raw_size += sizeof (Elf32_External_Rel);
- ++sreloc->reloc_count;
- }
- sreloc->_raw_size += sizeof (Elf32_External_Rel);
- }
+ /* When creating a shared object, we must copy these
+ reloc types into the output file as R_MIPS_REL32
+ relocs. We make room for this reloc in the
+ .rel.dyn reloc section. */
+ mips_elf_allocate_dynamic_relocations (dynobj, 1);
else
{
struct mips_elf_link_hash_entry *hmips;
hmips = (struct mips_elf_link_hash_entry *) h;
++hmips->mips_32_relocs;
}
+
+ /* Even though we don't directly need a GOT entry for
+ this symbol, a symbol must have a dynamic symbol
+ table index greater that DT_GOTSYM if there are
+ dynamic relocations against it. */
+ if (!mips_elf_record_global_got_symbol (h, info, g))
+ return false;
}
- if (SGI_COMPAT (abfd))
+ if (SGI_COMPAT (dynobj))
mips_elf_hash_table (info)->compact_rel_size +=
sizeof (Elf32_External_crinfo);
-
break;
case R_MIPS_26:
case R_MIPS_GPREL16:
case R_MIPS_LITERAL:
case R_MIPS_GPREL32:
- if (SGI_COMPAT (abfd))
+ if (SGI_COMPAT (dynobj))
mips_elf_hash_table (info)->compact_rel_size +=
sizeof (Elf32_External_crinfo);
break;
symbol, then we will need the fn_stub if there is one.
References from a stub section do not count. */
if (h != NULL
- && ELF32_R_TYPE (rel->r_info) != R_MIPS16_26
+ && r_type != R_MIPS16_26
&& strncmp (bfd_get_section_name (abfd, sec), FN_STUB,
sizeof FN_STUB - 1) != 0
&& strncmp (bfd_get_section_name (abfd, sec), CALL_STUB,
/* Return the section that should be marked against GC for a given
relocation. */
-static asection *
-mips_elf_gc_mark_hook (abfd, info, rel, h, sym)
+asection *
+_bfd_mips_elf_gc_mark_hook (abfd, info, rel, h, sym)
bfd *abfd;
struct bfd_link_info *info;
Elf_Internal_Rela *rel;
case bfd_link_hash_common:
return h->root.u.c.p->section;
+
+ default:
+ break;
}
}
}
/* Update the got entry reference counts for the section being removed. */
-static boolean
-mips_elf_gc_sweep_hook (abfd, info, sec, relocs)
+boolean
+_bfd_mips_elf_gc_sweep_hook (abfd, info, sec, relocs)
bfd *abfd;
struct bfd_link_info *info;
asection *sec;
change the definition to something the rest of the link can
understand. */
-static boolean
-mips_elf_adjust_dynamic_symbol (info, h)
+boolean
+_bfd_mips_elf_adjust_dynamic_symbol (info, h)
struct bfd_link_info *info;
struct elf_link_hash_entry *h;
{
if (! info->relocateable
&& hmips->mips_32_relocs != 0
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
- {
- s = bfd_get_section_by_name (dynobj, ".rel.dyn");
- BFD_ASSERT (s != NULL);
-
- if (s->_raw_size == 0)
- {
- /* Make room for a null element. */
- s->_raw_size += sizeof (Elf32_External_Rel);
- ++s->reloc_count;
- }
- s->_raw_size += hmips->mips_32_relocs * sizeof (Elf32_External_Rel);
- }
+ mips_elf_allocate_dynamic_relocations (dynobj, hmips->mips_32_relocs);
/* For a function, create a stub, if needed. */
if (h->type == STT_FUNC
if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
{
/* We need .stub section. */
- s = bfd_get_section_by_name (dynobj, ".stub");
+ s = bfd_get_section_by_name (dynobj,
+ MIPS_ELF_STUB_SECTION_NAME (dynobj));
BFD_ASSERT (s != NULL);
h->root.u.def.section = s;
static boolean mips_elf_check_mips16_stubs
PARAMS ((struct mips_elf_link_hash_entry *, PTR));
-static boolean
-mips_elf_always_size_sections (output_bfd, info)
+boolean
+_bfd_mips_elf_always_size_sections (output_bfd, info)
bfd *output_bfd;
struct bfd_link_info *info;
{
+ asection *ri;
+
+ /* The .reginfo section has a fixed size. */
+ ri = bfd_get_section_by_name (output_bfd, ".reginfo");
+ if (ri != NULL)
+ bfd_set_section_size (output_bfd, ri, sizeof (Elf32_External_RegInfo));
+
if (info->relocateable
|| ! mips_elf_hash_table (info)->mips16_stubs_seen)
return true;
/* Set the sizes of the dynamic sections. */
-static boolean
-mips_elf_size_dynamic_sections (output_bfd, info)
+boolean
+_bfd_mips_elf_size_dynamic_sections (output_bfd, info)
bfd *output_bfd;
struct bfd_link_info *info;
{
bfd *dynobj;
asection *s;
boolean reltext;
- asection *sgot;
struct mips_got_info *g;
dynobj = elf_hash_table (info)->dynobj;
{
s = bfd_get_section_by_name (dynobj, ".interp");
BFD_ASSERT (s != NULL);
- s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
- s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
+ s->_raw_size
+ = strlen (ELF_DYNAMIC_INTERPRETER (output_bfd)) + 1;
+ s->contents
+ = (bfd_byte *) ELF_DYNAMIC_INTERPRETER (output_bfd);
}
}
- /* Recompute the size of .got for local entires (reserved and
- hipages) if needed. To estimate it, get the upper bound of total
- size of loadable sections. */
- sgot = bfd_get_section_by_name (dynobj, ".got");
-
- if (sgot != NULL)
- {
- bfd_size_type loadable_size = 0;
- bfd_size_type local_gotno;
- struct _bfd *sub;
-
- BFD_ASSERT (elf_section_data (sgot) != NULL);
- g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
- BFD_ASSERT (g != NULL);
-
- for (sub = info->input_bfds; sub; sub = sub->link_next)
- for (s = sub->sections; s != NULL; s = s->next)
- {
- if ((s->flags & SEC_ALLOC) == 0)
- continue;
- loadable_size += (s->_raw_size + 0xf) & ~0xf;
- }
-
- loadable_size += MIPS_FUNCTION_STUB_SIZE;
-
- /* Assume there are two loadable segments consisting of
- contiguous sections. Is 5 enough? */
- local_gotno = (loadable_size >> 16) + 5 + MIPS_RESERVED_GOTNO;
- g->local_gotno = local_gotno;
- sgot->_raw_size += local_gotno * 4;
- }
-
/* The check_relocs and adjust_dynamic_symbol entry points have
determined the sizes of the various dynamic sections. Allocate
memory for them. */
if ((target != NULL
&& (target->flags & SEC_READONLY) != 0
&& (target->flags & SEC_ALLOC) != 0)
- || strcmp (outname, ".rel.dyn") == 0)
+ || strcmp (outname,
+ MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd)) == 0)
reltext = true;
/* We use the reloc_count field as a counter if we need
to copy relocs into the output file. */
- if (strcmp (name, ".rel.dyn") != 0)
+ if (strcmp (name,
+ MIPS_ELF_REL_DYN_SECTION_NAME (output_bfd)) != 0)
s->reloc_count = 0;
}
}
else if (strncmp (name, ".got", 4) == 0)
{
int i;
+ bfd_size_type loadable_size = 0;
+ bfd_size_type local_gotno;
+ struct _bfd *sub;
- BFD_ASSERT (elf_section_data (s) != NULL);
+ BFD_ASSERT (elf_section_data (s) != NULL);
g = (struct mips_got_info *) elf_section_data (s)->tdata;
- BFD_ASSERT (g != NULL);
-
- /* Fix the size of .got section for the correspondence of
- global symbols and got entries. This adds some useless
- got entries. Is this required by ABI really? */
- i = elf_hash_table (info)->dynsymcount - g->global_gotsym;
- s->_raw_size += i * 4;
+ BFD_ASSERT (g != NULL);
+
+ /* Calculate the total loadable size of the output. That
+ will give us the maximum number of GOT_PAGE entries
+ required. */
+ for (sub = info->input_bfds; sub; sub = sub->link_next)
+ {
+ asection *subsection;
+
+ for (subsection = sub->sections;
+ subsection;
+ subsection = subsection->next)
+ {
+ if ((subsection->flags & SEC_ALLOC) == 0)
+ continue;
+ loadable_size += (subsection->_raw_size + 0xf) & ~0xf;
+ }
+ }
+ loadable_size += MIPS_FUNCTION_STUB_SIZE;
+
+ /* Assume there are two loadable segments consisting of
+ contiguous sections. Is 5 enough? */
+ local_gotno = (loadable_size >> 16) + 5;
+ g->local_gotno += local_gotno;
+ s->_raw_size += local_gotno * MIPS_ELF_GOT_SIZE (dynobj);
+
+ /* There has to be a global GOT entry for every symbol with
+ a dynamic symbol table index of DT_MIPS_GOTSYM or
+ higher. Therefore, it make sense to put those symbols
+ that need GOT entries at the end of the symbol table. We
+ do that here. */
+ if (!mips_elf_sort_hash_table (info))
+ return false;
+
+ i = elf_hash_table (info)->dynsymcount - g->global_gotsym->dynindx;
+ s->_raw_size += i * MIPS_ELF_GOT_SIZE (dynobj);
}
- else if (strncmp (name, ".stub", 5) == 0)
+ else if (strcmp (name, MIPS_ELF_STUB_SECTION_NAME (output_bfd)) == 0)
{
/* Irix rld assumes that the function stub isn't at the end
of .text section. So put a dummy. XXX */
else if (SGI_COMPAT (output_bfd)
&& strncmp (name, ".compact_rel", 12) == 0)
s->_raw_size += mips_elf_hash_table (info)->compact_rel_size;
+ else if (strcmp (name, MIPS_ELF_MSYM_SECTION_NAME (output_bfd))
+ == 0)
+ s->_raw_size = (sizeof (Elf32_External_Msym)
+ * (elf_hash_table (info)->dynsymcount
+ + bfd_count_sections (output_bfd)));
else if (strncmp (name, ".init", 5) != 0)
{
/* It's not one of our sections, so don't allocate space. */
if (strip)
{
- asection **spp;
-
- for (spp = &s->output_section->owner->sections;
- *spp != s->output_section;
- spp = &(*spp)->next)
- ;
- *spp = s->output_section->next;
- --s->output_section->owner->section_count;
-
+ _bfd_strip_section_from_output (s);
continue;
}
/* Allocate memory for the section contents. */
- s->contents = (bfd_byte *) bfd_alloc (dynobj, s->_raw_size);
+ s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
if (s->contents == NULL && s->_raw_size != 0)
{
bfd_set_error (bfd_error_no_memory);
return false;
}
- memset (s->contents, 0, s->_raw_size);
}
if (elf_hash_table (info)->dynamic_sections_created)
{
/* SGI object has the equivalence of DT_DEBUG in the
DT_MIPS_RLD_MAP entry. */
- if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_RLD_MAP, 0))
+ if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_RLD_MAP, 0))
return false;
}
else
- if (! bfd_elf32_add_dynamic_entry (info, DT_DEBUG, 0))
+ if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_DEBUG, 0))
return false;
}
if (reltext)
{
- if (! bfd_elf32_add_dynamic_entry (info, DT_TEXTREL, 0))
+ if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_TEXTREL, 0))
return false;
}
- if (! bfd_elf32_add_dynamic_entry (info, DT_PLTGOT, 0))
+ if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_PLTGOT, 0))
return false;
- if (bfd_get_section_by_name (dynobj, ".rel.dyn"))
+ if (bfd_get_section_by_name (dynobj,
+ MIPS_ELF_REL_DYN_SECTION_NAME (dynobj)))
{
- if (! bfd_elf32_add_dynamic_entry (info, DT_REL, 0))
+ if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_REL, 0))
return false;
- if (! bfd_elf32_add_dynamic_entry (info, DT_RELSZ, 0))
+ if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_RELSZ, 0))
return false;
- if (! bfd_elf32_add_dynamic_entry (info, DT_RELENT, 0))
+ if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_RELENT, 0))
return false;
}
- if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_CONFLICTNO, 0))
+ if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_CONFLICTNO, 0))
return false;
- if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_LIBLISTNO, 0))
+ if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_LIBLISTNO, 0))
return false;
if (bfd_get_section_by_name (dynobj, ".conflict") != NULL)
{
- if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_CONFLICT, 0))
+ if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_CONFLICT, 0))
return false;
s = bfd_get_section_by_name (dynobj, ".liblist");
BFD_ASSERT (s != NULL);
- if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_LIBLIST, 0))
+ if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_LIBLIST, 0))
return false;
}
- if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_RLD_VERSION, 0))
+ if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_RLD_VERSION, 0))
return false;
- if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_FLAGS, 0))
+ if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_FLAGS, 0))
return false;
#if 0
/* Time stamps in executable files are a bad idea. */
- if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_TIME_STAMP, 0))
+ if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_TIME_STAMP, 0))
return false;
#endif
#if 0 /* FIXME */
- if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_ICHECKSUM, 0))
+ if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_ICHECKSUM, 0))
return false;
#endif
#if 0 /* FIXME */
- if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_IVERSION, 0))
+ if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_IVERSION, 0))
return false;
#endif
- if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_BASE_ADDRESS, 0))
+ if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_BASE_ADDRESS, 0))
return false;
- if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_LOCAL_GOTNO, 0))
+ if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_LOCAL_GOTNO, 0))
return false;
- if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_SYMTABNO, 0))
+ if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_SYMTABNO, 0))
return false;
- if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_UNREFEXTNO, 0))
+ if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_UNREFEXTNO, 0))
return false;
- if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_GOTSYM, 0))
+ if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_GOTSYM, 0))
return false;
- if (! bfd_elf32_add_dynamic_entry (info, DT_MIPS_HIPAGENO, 0))
+ if (IRIX_COMPAT (dynobj) == ict_irix5
+ && ! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_HIPAGENO, 0))
return false;
-#if 0 /* (SGI_COMPAT) */
- if (! bfd_get_section_by_name (dynobj, ".init"))
- if (! bfd_elf32_add_dynamic_entry (info, DT_INIT, 0))
- return false;
+ if (IRIX_COMPAT (dynobj) == ict_irix6
+ && (bfd_get_section_by_name
+ (dynobj, MIPS_ELF_OPTIONS_SECTION_NAME (dynobj)))
+ && !MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_OPTIONS, 0))
+ return false;
- if (! bfd_get_section_by_name (dynobj, ".fini"))
- if (! bfd_elf32_add_dynamic_entry (info, DT_FINI, 0))
- return false;
-#endif
+ if (bfd_get_section_by_name (dynobj,
+ MIPS_ELF_MSYM_SECTION_NAME (dynobj))
+ && !MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_MSYM, 0))
+ return false;
}
/* If we use dynamic linking, we generate a section symbol for each
That means we must increment the dynamic symbol index of every
other dynamic symbol. */
{
- const char * const *namep;
unsigned int c, i;
- bfd_size_type strindex;
- struct bfd_strtab_hash *dynstr;
struct mips_got_info *g;
c = 0;
if (elf_hash_table (info)->dynamic_sections_created)
{
- if (SGI_COMPAT (output_bfd))
- {
- c = SIZEOF_MIPS_DYNSYM_SECNAMES - 1;
- elf_link_hash_traverse (elf_hash_table (info),
- mips_elf_adjust_dynindx,
- (PTR) &c);
- elf_hash_table (info)->dynsymcount += c;
-
- dynstr = elf_hash_table (info)->dynstr;
- BFD_ASSERT (dynstr != NULL);
-
- for (i = 1, namep = mips_elf_dynsym_sec_names;
- *namep != NULL;
- i++, namep++)
- {
- s = bfd_get_section_by_name (output_bfd, *namep);
- if (s != NULL)
- elf_section_data (s)->dynindx = i;
+ c = bfd_count_sections (output_bfd);
+ elf_link_hash_traverse (elf_hash_table (info),
+ _bfd_elf_link_adjust_dynindx,
+ (PTR) &c);
+ elf_hash_table (info)->dynsymcount += c;
- strindex = _bfd_stringtab_add (dynstr, *namep, true, false);
- if (strindex == (bfd_size_type) -1)
- return false;
-
- mips_elf_hash_table (info)->dynsym_sec_strindex[i] = strindex;
- }
- }
- else
+ for (i = 1, s = output_bfd->sections; s != NULL; s = s->next, i++)
{
- c = bfd_count_sections (output_bfd);
- elf_link_hash_traverse (elf_hash_table (info),
- mips_elf_adjust_dynindx,
- (PTR) &c);
- elf_hash_table (info)->dynsymcount += c;
-
- for (i = 1, s = output_bfd->sections; s != NULL; s = s->next, i++)
- {
- elf_section_data (s)->dynindx = i;
- /* These symbols will have no names, so we don't need to
- fiddle with dynstr_index. */
- }
+ elf_section_data (s)->dynindx = i;
+ /* These symbols will have no names, so we don't need to
+ fiddle with dynstr_index. */
}
}
-
- if (sgot != NULL)
- {
- BFD_ASSERT (elf_section_data (sgot) != NULL);
- g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
- BFD_ASSERT (g != NULL);
-
- /* If there are no global got symbols, fake the last symbol so
- for safety. */
- if (g->global_gotsym)
- g->global_gotsym += c;
- else
- g->global_gotsym = elf_hash_table (info)->dynsymcount - 1;
- }
}
return true;
}
-/* Increment the index of a dynamic symbol by a given amount. Called
- via elf_link_hash_traverse. */
+/* If NAME is one of the special IRIX6 symbols defined by the linker,
+ adjust it appropriately now. */
-static boolean
-mips_elf_adjust_dynindx (h, cparg)
- struct elf_link_hash_entry *h;
- PTR cparg;
+static void
+mips_elf_irix6_finish_dynamic_symbol (abfd, name, sym)
+ bfd *abfd;
+ const char *name;
+ Elf_Internal_Sym *sym;
{
- unsigned int *cp = (unsigned int *) cparg;
-
- if (h->dynindx != -1)
- h->dynindx += *cp;
- return true;
+ /* The linker script takes care of providing names and values for
+ these, but we must place them into the right sections. */
+ static const char* const text_section_symbols[] = {
+ "_ftext",
+ "_etext",
+ "__dso_displacement",
+ "__elf_header",
+ "__program_header_table",
+ NULL
+ };
+
+ static const char* const data_section_symbols[] = {
+ "_fdata",
+ "_edata",
+ "_end",
+ "_fbss",
+ NULL
+ };
+
+ const char* const *p;
+ int i;
+
+ for (i = 0; i < 2; ++i)
+ for (p = (i == 0) ? text_section_symbols : data_section_symbols;
+ *p;
+ ++p)
+ if (strcmp (*p, name) == 0)
+ {
+ /* All of these symbols are given type STT_SECTION by the
+ IRIX6 linker. */
+ sym->st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
+
+ /* The IRIX linker puts these symbols in special sections. */
+ if (i == 0)
+ sym->st_shndx = SHN_MIPS_TEXT;
+ else
+ sym->st_shndx = SHN_MIPS_DATA;
+
+ break;
+ }
}
/* Finish up dynamic symbol handling. We set the contents of various
dynamic sections here. */
-static boolean
-mips_elf_finish_dynamic_symbol (output_bfd, info, h, sym)
+boolean
+_bfd_mips_elf_finish_dynamic_symbol (output_bfd, info, h, sym)
bfd *output_bfd;
struct bfd_link_info *info;
struct elf_link_hash_entry *h;
bfd *dynobj;
bfd_vma gval;
asection *sgot;
+ asection *smsym;
struct mips_got_info *g;
const char *name;
+ struct mips_elf_link_hash_entry *mh;
dynobj = elf_hash_table (info)->dynobj;
gval = sym->st_value;
+ mh = (struct mips_elf_link_hash_entry *) h;
if (h->plt.offset != (bfd_vma) -1)
{
BFD_ASSERT (h->dynindx != -1);
- s = bfd_get_section_by_name (dynobj, ".stub");
+ s = bfd_get_section_by_name (dynobj,
+ MIPS_ELF_STUB_SECTION_NAME (dynobj));
BFD_ASSERT (s != NULL);
/* Fill the stub. */
BFD_ASSERT (h->dynindx != -1);
- sgot = bfd_get_section_by_name (dynobj, ".got");
+ sgot = mips_elf_got_section (dynobj);
BFD_ASSERT (sgot != NULL);
BFD_ASSERT (elf_section_data (sgot) != NULL);
g = (struct mips_got_info *) elf_section_data (sgot)->tdata;
BFD_ASSERT (g != NULL);
- if ((unsigned long) h->dynindx >= g->global_gotsym)
+ /* Run through the global symbol table, creating GOT entries for all
+ the symbols that need them. */
+ if (h->dynindx >= g->global_gotsym->dynindx)
{
- bfd_size_type offset;
+ bfd_vma offset;
+ bfd_vma value;
- /* This symbol has an entry in the global offset table. Set its
- value to the corresponding got entry, if needed. */
- if (h->got.offset == (bfd_vma) -1)
- {
- offset = (h->dynindx - g->global_gotsym + g->local_gotno) * 4;
- BFD_ASSERT (g->local_gotno * 4 <= offset
- && offset < sgot->_raw_size);
- bfd_put_32 (output_bfd, gval, sgot->contents + offset);
- }
+ if (sym->st_value)
+ value = sym->st_value;
+ else
+ /* For an entity defined in a shared object, this will be
+ NULL. (For functions in shared objects for
+ which we have created stubs, ST_VALUE will be non-NULL.
+ That's because such the functions are now no longer defined
+ in a shared object.) */
+ value = h->root.u.def.value;
+
+ offset = mips_elf_global_got_index (dynobj, h);
+ MIPS_ELF_PUT_WORD (output_bfd, value, sgot->contents + offset);
+ }
+
+ /* Create a .msym entry, if appropriate. */
+ smsym = bfd_get_section_by_name (dynobj,
+ MIPS_ELF_MSYM_SECTION_NAME (dynobj));
+ if (smsym)
+ {
+ Elf32_Internal_Msym msym;
+
+ msym.ms_hash_value = bfd_elf_hash (h->root.root.string);
+ /* It is undocumented what the `1' indicates, but IRIX6 uses
+ this value. */
+ msym.ms_info = ELF32_MS_INFO (mh->min_dyn_reloc_index, 1);
+ bfd_mips_elf_swap_msym_out
+ (dynobj, &msym,
+ ((Elf32_External_Msym *) smsym->contents) + h->dynindx);
}
/* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
}
}
+ /* Handle the IRIX6-specific symbols. */
+ if (IRIX_COMPAT (output_bfd) == ict_irix6)
+ mips_elf_irix6_finish_dynamic_symbol (output_bfd, name, sym);
+
if (SGI_COMPAT (output_bfd)
&& ! info->shared)
{
else if (mips_elf_hash_table (info)->use_rld_obj_head
&& strcmp (name, "__rld_obj_head") == 0)
{
- asection *s = bfd_get_section_by_name (dynobj, ".rld_map");
- BFD_ASSERT (s != NULL);
+ /* IRIX6 does not use a .rld_map section. */
+ if (IRIX_COMPAT (output_bfd) == ict_irix5)
+ BFD_ASSERT (bfd_get_section_by_name (dynobj, ".rld_map")
+ != NULL);
mips_elf_hash_table (info)->rld_value = sym->st_value;
}
}
/* Finish up the dynamic sections. */
-static boolean
-mips_elf_finish_dynamic_sections (output_bfd, info)
+boolean
+_bfd_mips_elf_finish_dynamic_sections (output_bfd, info)
bfd *output_bfd;
struct bfd_link_info *info;
{
sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
- sgot = bfd_get_section_by_name (dynobj, ".got");
+ sgot = mips_elf_got_section (dynobj);
if (sgot == NULL)
g = NULL;
else
if (elf_hash_table (info)->dynamic_sections_created)
{
- Elf32_External_Dyn *dyncon, *dynconend;
+ bfd_byte *b;
BFD_ASSERT (sdyn != NULL);
BFD_ASSERT (g != NULL);
- dyncon = (Elf32_External_Dyn *) sdyn->contents;
- dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
- for (; dyncon < dynconend; dyncon++)
+ for (b = sdyn->contents;
+ b < sdyn->contents + sdyn->_raw_size;
+ b += MIPS_ELF_DYN_SIZE (dynobj))
{
Elf_Internal_Dyn dyn;
const char *name;
size_t elemsize;
asection *s;
+ boolean swap_out_p;
- bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
+ /* Read in the current dynamic entry. */
+ (*get_elf_backend_data (dynobj)->s->swap_dyn_in) (dynobj, b, &dyn);
+
+ /* Assume that we're going to modify it and write it out. */
+ swap_out_p = true;
switch (dyn.d_tag)
{
- default:
- break;
-
case DT_RELENT:
- s = bfd_get_section_by_name (dynobj, ".rel.dyn");
+ s = (bfd_get_section_by_name
+ (dynobj,
+ MIPS_ELF_REL_DYN_SECTION_NAME (dynobj)));
BFD_ASSERT (s != NULL);
- dyn.d_un.d_val = sizeof (Elf32_External_Rel);
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
+ dyn.d_un.d_val = MIPS_ELF_REL_SIZE (dynobj);
break;
case DT_STRSZ:
/* Rewrite DT_STRSZ. */
dyn.d_un.d_val =
_bfd_stringtab_size (elf_hash_table (info)->dynstr);
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
case DT_PLTGOT:
s = bfd_get_section_by_name (output_bfd, name);
BFD_ASSERT (s != NULL);
dyn.d_un.d_ptr = s->vma;
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
case DT_MIPS_RLD_VERSION:
dyn.d_un.d_val = 1; /* XXX */
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
case DT_MIPS_FLAGS:
dyn.d_un.d_val = RHF_NOTPOT; /* XXX */
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
case DT_MIPS_CONFLICTNO:
}
else
dyn.d_un.d_val = 0;
-
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
case DT_MIPS_TIME_STAMP:
time ((time_t *) &dyn.d_un.d_val);
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
case DT_MIPS_ICHECKSUM:
/* XXX FIXME: */
+ swap_out_p = false;
break;
case DT_MIPS_IVERSION:
/* XXX FIXME: */
+ swap_out_p = false;
break;
case DT_MIPS_BASE_ADDRESS:
s = output_bfd->sections;
BFD_ASSERT (s != NULL);
dyn.d_un.d_ptr = s->vma & ~(0xffff);
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
case DT_MIPS_LOCAL_GOTNO:
dyn.d_un.d_val = g->local_gotno;
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
case DT_MIPS_SYMTABNO:
name = ".dynsym";
- elemsize = sizeof (Elf32_External_Sym);
+ elemsize = MIPS_ELF_SYM_SIZE (output_bfd);
s = bfd_get_section_by_name (output_bfd, name);
BFD_ASSERT (s != NULL);
dyn.d_un.d_val = s->_cooked_size / elemsize;
else
dyn.d_un.d_val = s->_raw_size / elemsize;
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
case DT_MIPS_UNREFEXTNO:
- /* XXX FIXME: */
- dyn.d_un.d_val = SIZEOF_MIPS_DYNSYM_SECNAMES;
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
+ /* The index into the dynamic symbol table which is the
+ entry of the first external symbol that is not
+ referenced within the same object. */
+ dyn.d_un.d_val = bfd_count_sections (output_bfd) + 1;
break;
case DT_MIPS_GOTSYM:
- dyn.d_un.d_val = g->global_gotsym;
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
+ dyn.d_un.d_val = g->global_gotsym->dynindx;
break;
case DT_MIPS_HIPAGENO:
dyn.d_un.d_val = g->local_gotno - MIPS_RESERVED_GOTNO;
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
case DT_MIPS_RLD_MAP:
dyn.d_un.d_ptr = mips_elf_hash_table (info)->rld_value;
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
+ case DT_MIPS_OPTIONS:
+ s = (bfd_get_section_by_name
+ (output_bfd, MIPS_ELF_OPTIONS_SECTION_NAME (output_bfd)));
+ dyn.d_un.d_ptr = s->vma;
+ break;
+
+ case DT_MIPS_MSYM:
+ s = (bfd_get_section_by_name
+ (output_bfd, MIPS_ELF_MSYM_SECTION_NAME (output_bfd)));
+ dyn.d_un.d_ptr = s->vma;
+ break;
+
+ default:
+ swap_out_p = false;
+ break;
}
+
+ if (swap_out_p)
+ (*get_elf_backend_data (dynobj)->s->swap_dyn_out)
+ (dynobj, &dyn, b);
}
}
This isn't the case of Irix rld. */
if (sgot != NULL && sgot->_raw_size > 0)
{
- bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
- bfd_put_32 (output_bfd, (bfd_vma) 0x80000000, sgot->contents + 4);
+ MIPS_ELF_PUT_WORD (output_bfd, (bfd_vma) 0, sgot->contents);
+ MIPS_ELF_PUT_WORD (output_bfd, (bfd_vma) 0x80000000,
+ sgot->contents + MIPS_ELF_GOT_SIZE (output_bfd));
}
if (sgot != NULL)
- elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
+ elf_section_data (sgot->output_section)->this_hdr.sh_entsize
+ = MIPS_ELF_GOT_SIZE (output_bfd);
{
asection *sdynsym;
+ asection *smsym;
asection *s;
- unsigned int i;
- bfd_vma last;
Elf_Internal_Sym sym;
- long dindx;
- const char *name;
- const char * const * namep = mips_elf_dynsym_sec_names;
Elf32_compact_rel cpt;
/* Set up the section symbols for the output sections. SGI sets
the STT_NOTYPE attribute for these symbols. Should we do so? */
sdynsym = bfd_get_section_by_name (dynobj, ".dynsym");
+ smsym = bfd_get_section_by_name (dynobj,
+ MIPS_ELF_MSYM_SECTION_NAME (dynobj));
if (sdynsym != NULL)
{
- if (SGI_COMPAT (output_bfd))
- {
- sym.st_size = 0;
- sym.st_name = 0;
- sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_NOTYPE);
- sym.st_other = 0;
-
- i = 0;
- last = 0;
- dindx = 0;
- while ((name = *namep++) != NULL)
- {
- s = bfd_get_section_by_name (output_bfd, name);
- if (s != NULL)
- {
- sym.st_value = s->vma;
- dindx = elf_section_data (s)->dynindx;
- last = s->vma + s->_raw_size;
- }
- else
- {
- sym.st_value = last;
- dindx++;
- }
-
- sym.st_shndx = (i < MIPS_TEXT_DYNSYM_SECNO
- ? SHN_MIPS_TEXT
- : SHN_MIPS_DATA);
- ++i;
- sym.st_name =
- mips_elf_hash_table (info)->dynsym_sec_strindex[dindx];
-
- bfd_elf32_swap_symbol_out (output_bfd, &sym,
- (((Elf32_External_Sym *)
- sdynsym->contents)
- + dindx));
- }
-
- /* Set the sh_info field of the output .dynsym section to
- the index of the first global symbol. */
- elf_section_data (sdynsym->output_section)->this_hdr.sh_info =
- SIZEOF_MIPS_DYNSYM_SECNAMES;
- }
- else
- {
- sym.st_size = 0;
- sym.st_name = 0;
- sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION);
- sym.st_other = 0;
-
- for (s = output_bfd->sections; s != NULL; s = s->next)
- {
- int indx;
+ Elf32_Internal_Msym msym;
- sym.st_value = s->vma;
+ sym.st_size = 0;
+ sym.st_name = 0;
+ sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION);
+ sym.st_other = 0;
- indx = elf_section_data (s)->this_idx;
- BFD_ASSERT (indx > 0);
- sym.st_shndx = indx;
+ msym.ms_hash_value = 0;
+ msym.ms_info = ELF32_MS_INFO (0, 1);
- bfd_elf32_swap_symbol_out (output_bfd, &sym,
- (((Elf32_External_Sym *)
- sdynsym->contents)
- + elf_section_data (s)->dynindx));
- }
+ for (s = output_bfd->sections; s != NULL; s = s->next)
+ {
+ int indx;
+ long dynindx;
+
+ sym.st_value = s->vma;
+
+ indx = elf_section_data (s)->this_idx;
+ BFD_ASSERT (indx > 0);
+ sym.st_shndx = indx;
+
+ dynindx = elf_section_data (s)->dynindx;
+
+ (*get_elf_backend_data (output_bfd)->s->swap_symbol_out)
+ (output_bfd, &sym,
+ sdynsym->contents
+ + (dynindx * MIPS_ELF_SYM_SIZE (output_bfd)));
+
+ if (smsym)
+ bfd_mips_elf_swap_msym_out
+ (output_bfd, &msym,
+ (((Elf32_External_Msym *) smsym->contents)
+ + dynindx));
+ }
- /* Set the sh_info field of the output .dynsym section to
+ /* Set the sh_info field of the output .dynsym section to
the index of the first global symbol. */
- elf_section_data (sdynsym->output_section)->this_hdr.sh_info =
- bfd_count_sections (output_bfd) + 1;
- }
+ elf_section_data (sdynsym->output_section)->this_hdr.sh_info =
+ bfd_count_sections (output_bfd) + 1;
}
if (SGI_COMPAT (output_bfd))
s->contents));
/* Clean up a dummy stub function entry in .text. */
- s = bfd_get_section_by_name (dynobj, ".stub");
+ s = bfd_get_section_by_name (dynobj,
+ MIPS_ELF_STUB_SECTION_NAME (dynobj));
if (s != NULL)
{
file_ptr dummy_offset;
}
/* Clean up a first relocation in .rel.dyn. */
- s = bfd_get_section_by_name (dynobj, ".rel.dyn");
+ s = bfd_get_section_by_name (dynobj,
+ MIPS_ELF_REL_DYN_SECTION_NAME (dynobj));
if (s != NULL && s->_raw_size > 0)
- memset (s->contents, 0, sizeof (Elf32_External_Rel));
+ memset (s->contents, 0, MIPS_ELF_REL_SIZE (dynobj));
}
return true;
#define elf_backend_collect true
#define elf_backend_type_change_ok true
#define elf_backend_can_gc_sections true
-#define elf_info_to_howto 0
+#define elf_info_to_howto mips_info_to_howto_rela
#define elf_info_to_howto_rel mips_info_to_howto_rel
#define elf_backend_sym_is_global mips_elf_sym_is_global
-#define elf_backend_object_p mips_elf32_object_p
-#define elf_backend_section_from_shdr mips_elf32_section_from_shdr
+#define elf_backend_object_p _bfd_mips_elf_object_p
+#define elf_backend_section_from_shdr _bfd_mips_elf_section_from_shdr
#define elf_backend_fake_sections _bfd_mips_elf_fake_sections
#define elf_backend_section_from_bfd_section \
_bfd_mips_elf_section_from_bfd_section
-#define elf_backend_section_processing mips_elf32_section_processing
+#define elf_backend_section_processing _bfd_mips_elf_section_processing
#define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing
#define elf_backend_additional_program_headers \
- mips_elf_additional_program_headers
-#define elf_backend_modify_segment_map mips_elf_modify_segment_map
+ _bfd_mips_elf_additional_program_headers
+#define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map
#define elf_backend_final_write_processing \
_bfd_mips_elf_final_write_processing
#define elf_backend_ecoff_debug_swap &mips_elf32_ecoff_debug_swap
+#define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook
+#define elf_backend_create_dynamic_sections \
+ _bfd_mips_elf_create_dynamic_sections
+#define elf_backend_check_relocs _bfd_mips_elf_check_relocs
+#define elf_backend_adjust_dynamic_symbol \
+ _bfd_mips_elf_adjust_dynamic_symbol
+#define elf_backend_always_size_sections \
+ _bfd_mips_elf_always_size_sections
+#define elf_backend_size_dynamic_sections \
+ _bfd_mips_elf_size_dynamic_sections
+#define elf_backend_relocate_section _bfd_mips_elf_relocate_section
+#define elf_backend_link_output_symbol_hook \
+ _bfd_mips_elf_link_output_symbol_hook
+#define elf_backend_finish_dynamic_symbol \
+ _bfd_mips_elf_finish_dynamic_symbol
+#define elf_backend_finish_dynamic_sections \
+ _bfd_mips_elf_finish_dynamic_sections
+#define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook
+#define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook
+
+#define elf_backend_got_header_size (4*MIPS_RESERVED_GOTNO)
+#define elf_backend_plt_header_size 0
#define bfd_elf32_bfd_is_local_label_name \
mips_elf_is_local_label_name
#define bfd_elf32_find_nearest_line _bfd_mips_elf_find_nearest_line
#define bfd_elf32_set_section_contents _bfd_mips_elf_set_section_contents
#define bfd_elf32_bfd_link_hash_table_create \
- mips_elf_link_hash_table_create
-#define bfd_elf32_bfd_final_link mips_elf_final_link
+ _bfd_mips_elf_link_hash_table_create
+#define bfd_elf32_bfd_final_link _bfd_mips_elf_final_link
#define bfd_elf32_bfd_copy_private_bfd_data \
_bfd_mips_elf_copy_private_bfd_data
#define bfd_elf32_bfd_merge_private_bfd_data \
_bfd_mips_elf_merge_private_bfd_data
#define bfd_elf32_bfd_set_private_flags _bfd_mips_elf_set_private_flags
-#define elf_backend_add_symbol_hook mips_elf_add_symbol_hook
-#define elf_backend_create_dynamic_sections \
- mips_elf_create_dynamic_sections
-#define elf_backend_check_relocs mips_elf_check_relocs
-#define elf_backend_adjust_dynamic_symbol \
- mips_elf_adjust_dynamic_symbol
-#define elf_backend_always_size_sections \
- mips_elf_always_size_sections
-#define elf_backend_size_dynamic_sections \
- mips_elf_size_dynamic_sections
-#define elf_backend_relocate_section mips_elf_relocate_section
-#define elf_backend_link_output_symbol_hook \
- mips_elf_link_output_symbol_hook
-#define elf_backend_finish_dynamic_symbol \
- mips_elf_finish_dynamic_symbol
-#define elf_backend_finish_dynamic_sections \
- mips_elf_finish_dynamic_sections
-#define elf_backend_gc_mark_hook mips_elf_gc_mark_hook
-#define elf_backend_gc_sweep_hook mips_elf_gc_sweep_hook
-
+#define bfd_elf32_bfd_print_private_bfd_data \
+ _bfd_mips_elf_print_private_bfd_data
#include "elf32-target.h"
projects / deliverable / binutils-gdb.git / blobdiff