/* MIPS-specific support for 32-bit ELF
- Copyright (C) 1993-2014 Free Software Foundation, Inc.
+ Copyright (C) 1993-2017 Free Software Foundation, Inc.
Most of the information added by Ian Lance Taylor, Cygnus Support,
<ian@cygnus.com>.
/* No relocation. */
HOWTO (R_MIPS_NONE, /* type */
0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 3, /* size (0 = byte, 1 = short, 2 = long) */
0, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
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
0x0000ffff, /* src_mask */
0x0000ffff, /* dst_mask */
FALSE), /* pcrel_offset */
+
+ /* MIPS16 16-bit PC-relative branch offset. */
+ HOWTO (R_MIPS16_PC16_S1, /* type */
+ 1, /* 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_MIPS16_PC16_S1", /* name */
+ TRUE, /* partial_inplace */
+ 0x0000ffff, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
};
static reloc_howto_type elf_micromips_howto_table_rel[] =
TRUE); /* pcrel_offset */
/* 32 bit pc-relative. This was a GNU extension used by embedded-PIC.
- It was co-opted by mips-linux for exception-handling data. It is no
- longer used, but should continue to be supported by the linker for
- backward compatibility. (GCC stopped using it in May, 2004.) */
+ It was co-opted by mips-linux for exception-handling data. GCC stopped
+ using it in May, 2004, then started using it again for compact unwind
+ tables. */
static reloc_howto_type elf_mips_gnu_pcrel32 =
HOWTO (R_MIPS_PC32, /* type */
0, /* rightshift */
{ 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[] =
R_MIPS16_TLS_DTPREL_LO16 - R_MIPS16_min },
{ BFD_RELOC_MIPS16_TLS_GOTTPREL, R_MIPS16_TLS_GOTTPREL - R_MIPS16_min },
{ BFD_RELOC_MIPS16_TLS_TPREL_HI16, R_MIPS16_TLS_TPREL_HI16 - R_MIPS16_min },
- { BFD_RELOC_MIPS16_TLS_TPREL_LO16, R_MIPS16_TLS_TPREL_LO16 - R_MIPS16_min }
+ { BFD_RELOC_MIPS16_TLS_TPREL_LO16, R_MIPS16_TLS_TPREL_LO16 - R_MIPS16_min },
+ { BFD_RELOC_MIPS16_16_PCREL_S1, R_MIPS16_PC16_S1 - R_MIPS16_min }
};
static const struct elf_reloc_map micromips_reloc_map[] =
return &elf_micromips_howto_table_rel[r_type - R_MICROMIPS_min];
if (r_type >= R_MIPS16_min && r_type < R_MIPS16_max)
return &elf_mips16_howto_table_rel[r_type - R_MIPS16_min];
- BFD_ASSERT (r_type < (unsigned int) R_MIPS_max);
+ if (r_type >= (unsigned int) R_MIPS_max)
+ {
+ _bfd_error_handler (_("Unrecognised MIPS reloc number: %d"), r_type);
+ bfd_set_error (bfd_error_bad_value);
+ r_type = R_MIPS_NONE;
+ }
return &elf_mips_howto_table_rel[r_type];
}
}
#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_ecoff_debug_swap &mips_elf32_ecoff_debug_swap
#define elf_backend_got_header_size (4 * MIPS_RESERVED_GOTNO)
+#define elf_backend_want_dynrelro 1
#define elf_backend_may_use_rel_p 1
#define elf_backend_may_use_rela_p 0
#define elf_backend_default_use_rela_p 0
#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 \
#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_dtrel_excludes_plt
+#define elf_backend_dtrel_excludes_plt 1
#undef elf_backend_finish_dynamic_symbol
#define elf_backend_finish_dynamic_symbol \
projects / deliverable / binutils-gdb.git / blobdiff