/* MIPS-specific support for 32-bit ELF
- Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
- 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+ Copyright (C) 1993-2015 Free Software Foundation, Inc.
Most of the information added by Ian Lance Taylor, Cygnus Support,
<ian@cygnus.com>.
static irix_compat_t elf32_mips_irix_compat
(bfd *);
-extern const bfd_target bfd_elf32_bigmips_vec;
-extern const bfd_target bfd_elf32_littlemips_vec;
+extern const bfd_target mips_elf32_be_vec;
+extern const bfd_target mips_elf32_le_vec;
/* Nonzero if ABFD is using the N32 ABI. */
#define ABI_N32_P(abfd) \
0x0, /* src_mask */
0xffffffff, /* dst_mask */
FALSE), /* pcrel_offset */
+
+ EMPTY_HOWTO (52),
+ EMPTY_HOWTO (53),
+ EMPTY_HOWTO (54),
+ EMPTY_HOWTO (55),
+ EMPTY_HOWTO (56),
+ EMPTY_HOWTO (57),
+ EMPTY_HOWTO (58),
+ EMPTY_HOWTO (59),
+
+ HOWTO (R_MIPS_PC21_S2, /* type */
+ 2, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 21, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ _bfd_mips_elf_generic_reloc, /* special_function */
+ "R_MIPS_PC21_S2", /* name */
+ TRUE, /* partial_inplace */
+ 0x001fffff, /* src_mask */
+ 0x001fffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ HOWTO (R_MIPS_PC26_S2, /* type */
+ 2, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 26, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ _bfd_mips_elf_generic_reloc, /* special_function */
+ "R_MIPS_PC26_S2", /* name */
+ TRUE, /* partial_inplace */
+ 0x03ffffff, /* src_mask */
+ 0x03ffffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ HOWTO (R_MIPS_PC18_S3, /* type */
+ 3, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 18, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ _bfd_mips_elf_generic_reloc, /* special_function */
+ "R_MIPS_PC18_S3", /* name */
+ TRUE, /* partial_inplace */
+ 0x0003ffff, /* src_mask */
+ 0x0003ffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ HOWTO (R_MIPS_PC19_S2, /* type */
+ 2, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 19, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ _bfd_mips_elf_generic_reloc, /* special_function */
+ "R_MIPS_PC19_S2", /* name */
+ TRUE, /* partial_inplace */
+ 0x0007ffff, /* src_mask */
+ 0x0007ffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ HOWTO (R_MIPS_PCHI16, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ _bfd_mips_elf_generic_reloc, /* special_function */
+ "R_MIPS_PCHI16", /* name */
+ TRUE, /* partial_inplace */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ HOWTO (R_MIPS_PCLO16, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ _bfd_mips_elf_generic_reloc, /* special_function */
+ "R_MIPS_PCLO16", /* name */
+ TRUE, /* partial_inplace */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
};
/* The reloc used for BFD_RELOC_CTOR when doing a 64 bit link. This
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ _bfd_mips_elf_generic_reloc, /* special_function */
"R_MIPS_COPY", /* name */
FALSE, /* partial_inplace */
0x0, /* src_mask */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ _bfd_mips_elf_generic_reloc, /* special_function */
"R_MIPS_JUMP_SLOT", /* name */
FALSE, /* partial_inplace */
0x0, /* src_mask */
0x0, /* dst_mask */
FALSE); /* pcrel_offset */
+/* Used in EH tables. */
+static reloc_howto_type elf_mips_eh_howto =
+ HOWTO (R_MIPS_EH, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ _bfd_mips_elf_generic_reloc, /* special_function */
+ "R_MIPS_EH", /* name */
+ TRUE, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE); /* pcrel_offset */
+
/* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a
dangerous relocation. */
{ BFD_RELOC_MIPS_TLS_TPREL32, R_MIPS_TLS_TPREL32 },
{ BFD_RELOC_MIPS_TLS_TPREL64, R_MIPS_TLS_TPREL64 },
{ BFD_RELOC_MIPS_TLS_TPREL_HI16, R_MIPS_TLS_TPREL_HI16 },
- { BFD_RELOC_MIPS_TLS_TPREL_LO16, R_MIPS_TLS_TPREL_LO16 }
+ { BFD_RELOC_MIPS_TLS_TPREL_LO16, R_MIPS_TLS_TPREL_LO16 },
+ { BFD_RELOC_MIPS_21_PCREL_S2, R_MIPS_PC21_S2 },
+ { BFD_RELOC_MIPS_26_PCREL_S2, R_MIPS_PC26_S2 },
+ { BFD_RELOC_MIPS_18_PCREL_S3, R_MIPS_PC18_S3 },
+ { BFD_RELOC_MIPS_19_PCREL_S2, R_MIPS_PC19_S2 },
+ { BFD_RELOC_HI16_S_PCREL, R_MIPS_PCHI16 },
+ { BFD_RELOC_LO16_PCREL, R_MIPS_PCLO16 }
};
static const struct elf_reloc_map mips16_reloc_map[] =
return &elf_mips_copy_howto;
case BFD_RELOC_MIPS_JUMP_SLOT:
return &elf_mips_jump_slot_howto;
+ case BFD_RELOC_MIPS_EH:
+ return &elf_mips_eh_howto;
}
}
return &elf_mips_copy_howto;
if (strcasecmp (elf_mips_jump_slot_howto.name, r_name) == 0)
return &elf_mips_jump_slot_howto;
+ if (strcasecmp (elf_mips_eh_howto.name, r_name) == 0)
+ return &elf_mips_eh_howto;
return NULL;
}
return &elf_mips_copy_howto;
case R_MIPS_JUMP_SLOT:
return &elf_mips_jump_slot_howto;
+ case R_MIPS_EH:
+ return &elf_mips_eh_howto;
default:
if (r_type >= R_MICROMIPS_min && r_type < R_MICROMIPS_max)
return &elf_micromips_howto_table_rel[r_type - R_MICROMIPS_min];
{
unsigned long mach;
+ if (ABI_N32_P (abfd))
+ return FALSE;
+
/* Irix 5 and 6 are 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. */
if (SGI_COMPAT (abfd))
elf_bad_symtab (abfd) = TRUE;
- if (ABI_N32_P (abfd))
- return FALSE;
-
mach = _bfd_elf_mips_mach (elf_elfheader (abfd)->e_flags);
bfd_default_set_arch_mach (abfd, bfd_arch_mips, mach);
-
return TRUE;
}
\f
case 256: /* Linux/MIPS */
/* pr_cursig */
- elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
+ elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
/* pr_pid */
- elf_tdata (abfd)->core_lwpid = bfd_get_32 (abfd, note->descdata + 24);
+ elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
/* pr_reg */
offset = 72;
return FALSE;
case 128: /* Linux/MIPS elf_prpsinfo */
- elf_tdata (abfd)->core_program
+ elf_tdata (abfd)->core->program
= _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
- elf_tdata (abfd)->core_command
+ elf_tdata (abfd)->core->command
= _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
}
implementations, so strip it off if it exists. */
{
- char *command = elf_tdata (abfd)->core_command;
+ char *command = elf_tdata (abfd)->core->command;
int n = strlen (command);
if (0 < n && command[n - 1] == ' ')
static irix_compat_t
elf32_mips_irix_compat (bfd *abfd)
{
- if ((abfd->xvec == &bfd_elf32_bigmips_vec)
- || (abfd->xvec == &bfd_elf32_littlemips_vec))
+ if ((abfd->xvec == &mips_elf32_be_vec)
+ || (abfd->xvec == &mips_elf32_le_vec))
return ict_irix5;
else
return ict_none;
#define elf_backend_collect TRUE
#define elf_backend_type_change_ok TRUE
#define elf_backend_can_gc_sections TRUE
+#define elf_backend_gc_mark_extra_sections \
+ _bfd_mips_elf_gc_mark_extra_sections
#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_default_use_rela_p 0
#define elf_backend_sign_extend_vma TRUE
#define elf_backend_plt_readonly 1
-#define elf_backend_plt_sym_val _bfd_mips_elf_plt_sym_val
#define elf_backend_discard_info _bfd_mips_elf_discard_info
#define elf_backend_ignore_discarded_relocs \
#define elf_backend_write_section _bfd_mips_elf_write_section
#define elf_backend_mips_irix_compat elf32_mips_irix_compat
#define elf_backend_mips_rtype_to_howto mips_elf32_rtype_to_howto
+#define elf_backend_sort_relocs_p _bfd_mips_elf_sort_relocs_p
+
#define bfd_elf32_bfd_is_local_label_name \
mips_elf_is_local_label_name
#define bfd_elf32_bfd_is_target_special_symbol \
_bfd_mips_elf_is_target_special_symbol
+#define bfd_elf32_get_synthetic_symtab _bfd_mips_elf_get_synthetic_symtab
#define bfd_elf32_find_nearest_line _bfd_mips_elf_find_nearest_line
#define bfd_elf32_find_inliner_info _bfd_mips_elf_find_inliner_info
#define bfd_elf32_new_section_hook _bfd_mips_elf_new_section_hook
#define bfd_elf32_bfd_print_private_bfd_data \
_bfd_mips_elf_print_private_bfd_data
#define bfd_elf32_bfd_relax_section _bfd_mips_elf_relax_section
+#define bfd_elf32_mkobject _bfd_mips_elf_mkobject
/* Support for SGI-ish mips targets. */
-#define TARGET_LITTLE_SYM bfd_elf32_littlemips_vec
+#define TARGET_LITTLE_SYM mips_elf32_le_vec
#define TARGET_LITTLE_NAME "elf32-littlemips"
-#define TARGET_BIG_SYM bfd_elf32_bigmips_vec
+#define TARGET_BIG_SYM mips_elf32_be_vec
#define TARGET_BIG_NAME "elf32-bigmips"
/* The SVR4 MIPS ABI says that this should be 0x10000, but Irix 5 uses
#undef ELF_MAXPAGESIZE
#undef ELF_COMMONPAGESIZE
-#define TARGET_LITTLE_SYM bfd_elf32_tradlittlemips_vec
+#define TARGET_LITTLE_SYM mips_elf32_trad_le_vec
#define TARGET_LITTLE_NAME "elf32-tradlittlemips"
-#define TARGET_BIG_SYM bfd_elf32_tradbigmips_vec
+#define TARGET_BIG_SYM mips_elf32_trad_be_vec
#define TARGET_BIG_NAME "elf32-tradbigmips"
/* The MIPS ABI says at Page 5-1:
#undef TARGET_BIG_SYM
#undef TARGET_BIG_NAME
-#define TARGET_LITTLE_SYM bfd_elf32_tradlittlemips_freebsd_vec
+#define TARGET_LITTLE_SYM mips_elf32_tradfbsd_le_vec
#define TARGET_LITTLE_NAME "elf32-tradlittlemips-freebsd"
-#define TARGET_BIG_SYM bfd_elf32_tradbigmips_freebsd_vec
+#define TARGET_BIG_SYM mips_elf32_tradfbsd_be_vec
#define TARGET_BIG_NAME "elf32-tradbigmips-freebsd"
#undef ELF_OSABI
#define ELF_OSABI ELFOSABI_FREEBSD
-/* The kernel recognizes executables as valid only if they carry a
- "FreeBSD" label in the ELF header. So we put this label on all
- executables and (for simplicity) also all other object files. */
-
-static void
-elf_fbsd_post_process_headers (bfd *abfd, struct bfd_link_info *info)
-{
- _bfd_elf_set_osabi (abfd, info);
-}
-
-#undef elf_backend_post_process_headers
-#define elf_backend_post_process_headers elf_fbsd_post_process_headers
#undef elf32_bed
#define elf32_bed elf32_fbsd_tradbed
#undef ELF_MAXPAGESIZE
#undef ELF_COMMONPAGESIZE
-#define TARGET_LITTLE_SYM bfd_elf32_littlemips_vxworks_vec
+#define TARGET_LITTLE_SYM mips_elf32_vxworks_le_vec
#define TARGET_LITTLE_NAME "elf32-littlemips-vxworks"
-#define TARGET_BIG_SYM bfd_elf32_bigmips_vxworks_vec
+#define TARGET_BIG_SYM mips_elf32_vxworks_be_vec
#define TARGET_BIG_NAME "elf32-bigmips-vxworks"
+#undef ELF_OSABI
#undef elf32_bed
#define elf32_bed elf32_mips_vxworks_bed
#define elf_backend_default_use_rela_p 1
#undef elf_backend_got_header_size
#define elf_backend_got_header_size (4 * 3)
-#undef elf_backend_plt_sym_val
#undef elf_backend_finish_dynamic_symbol
#define elf_backend_finish_dynamic_symbol \
#undef elf_backend_symbol_processing
/* NOTE: elf_backend_rela_normal is not defined for MIPS. */
+#undef bfd_elf32_get_synthetic_symtab
+
#include "elf32-target.h"
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