/* MIPS-specific support for 32-bit ELF
- Copyright (C) 1993-2016 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>.
(bfd *, Elf_Internal_Note *);
static bfd_boolean elf32_mips_grok_psinfo
(bfd *, Elf_Internal_Note *);
+static bfd_boolean elf_n32_mips_grok_freebsd_prstatus
+ (bfd *, Elf_Internal_Note *);
static irix_compat_t elf_n32_mips_irix_compat
(bfd *);
+static bfd_boolean mips_elf_n32_mkobject
+ (bfd *);
extern const bfd_target mips_elf32_n_be_vec;
extern const bfd_target mips_elf32_n_le_vec;
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_mips16_howto_table_rela[] =
0, /* 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 */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0x0000ffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
};
static reloc_howto_type elf_micromips_howto_table_rel[] =
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[] =
}
if (r_type >= R_MIPS_max)
{
- (*_bfd_error_handler) (_("unrecognised MIPS reloc number: %d"), r_type);
+ _bfd_error_handler (_("unrecognised MIPS reloc number: %d"), r_type);
bfd_set_error (bfd_error_bad_value);
r_type = R_MIPS_NONE;
}
return TRUE;
}
+
+static bfd_boolean
+elf_n32_mips_grok_freebsd_prstatus (bfd *abfd, Elf_Internal_Note *note)
+{
+ size_t offset;
+ size_t size;
+ size_t min_size;
+
+ /* Compute offset of pr_getregsz, skipping over pr_statussz.
+ Also compute minimum size of this note. */
+ offset = 4 + 4;
+ min_size = offset + 4 * 2 + 4 + 4 + 4;
+
+ if (note->descsz < min_size)
+ return FALSE;
+
+ /* Check for version 1 in pr_version. */
+ if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1)
+ return FALSE;
+
+ /* Extract size of pr_reg from pr_gregsetsz. */
+ /* Skip over pr_gregsetsz and pr_fpregsetsz. */
+ size = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset);
+ offset += 4 * 2;
+
+ /* Skip over pr_osreldate. */
+ offset += 4;
+
+ /* Read signal from pr_cursig. */
+ if (elf_tdata (abfd)->core->signal == 0)
+ elf_tdata (abfd)->core->signal
+ = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset);
+ offset += 4;
+
+ /* Read TID from pr_pid. */
+ elf_tdata (abfd)->core->lwpid
+ = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset);
+ offset += 4;
+
+ /* Padding before pr_reg. */
+ offset += 4;
+
+ /* Make sure that there is enough data remaining in the note. */
+ if (note->descsz - offset < size)
+ return FALSE;
+
+ /* Make a ".reg/999" section and a ".reg" section. */
+ return _bfd_elfcore_make_pseudosection (abfd, ".reg",
+ size, note->descpos + offset);
+}
\f
/* Depending on the target vector we generate some version of Irix
executables or "normal" MIPS ELF ABI executables. */
return ict_none;
}
\f
+/* Make an n32 MIPS object. We need to set the n32 ABI flag in
+ `e_flags' to tell the object apart from an o32 object. */
+
+static bfd_boolean
+mips_elf_n32_mkobject (bfd *abfd)
+{
+ bfd_boolean ret;
+
+ ret = _bfd_mips_elf_mkobject (abfd);
+ if (ret)
+ elf_elfheader (abfd)->e_flags |= EF_MIPS_ABI2;
+
+ return ret;
+}
+\f
/* ECOFF swapping routines. These are used when dealing with the
.mdebug section, which is in the ECOFF debugging format. */
static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = {
_bfd_mips_elf_copy_indirect_symbol
#define elf_backend_grok_prstatus elf32_mips_grok_prstatus
#define elf_backend_grok_psinfo elf32_mips_grok_psinfo
+#define elf_backend_grok_freebsd_prstatus \
+ elf_n32_mips_grok_freebsd_prstatus
#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
/* MIPS n32 ELF can use a mixture of REL and RELA, but some Relocations
work better/work only in RELA, so we default to this. */
#define bfd_elf32_bfd_set_private_flags _bfd_mips_elf_set_private_flags
#define bfd_elf32_bfd_print_private_bfd_data \
_bfd_mips_elf_print_private_bfd_data
-#define bfd_elf32_bfd_relax_section _bfd_mips_relax_section
-#define bfd_elf32_mkobject _bfd_mips_elf_mkobject
+#define bfd_elf32_mkobject mips_elf_n32_mkobject
/* Support for SGI-ish mips targets using n32 ABI. */
projects / deliverable / binutils-gdb.git / blobdiff