writing files and for gas.
* elf32-mips.c (_bfd_mips_elf_object_p): New function, broken out
of mips_elf_object_p.
(mips_elf32_object_p): Rename from mips_elf_object_p; call
_bfd_mips_elf_object_p.
(_bfd_mips_elf_final_write_processing): Rename from
mips_elf_final_write_processing and make globally visible.
(_bfd_mips_elf_fake_sections): Rename from
mips_elf_fake_sections and make globally visible.
(_bfd_mips_elf_section_from_bfd_section): Rename from
mips_elf_section_from_bfd_section and make globally visible.
(_bfd_mips_elf_section_processing): New function, broken out of
mips_elf_section_processing.
(mips_elf32_section_processing): Rename from
mips_elf_section_processing; call
_bfd_mips_elf_section_processing.
(_bfd_mips_elf_symbol_processing): Rename from
mips_elf_symbol_processing and make globally visible.
(_bfd_mips_elf_read_ecoff_info): Rename from
mips_elf_read_ecoff_info and make globally visible.
(mips_elf32_ecoff_debug_swap): Rename from
mips_elf_ecoff_debug_swap.
* elf.c (_bfd_elf_symbol_from_bfd_symbol): Use asymbol rather than
struct symbol_cache_entry.
(_bfd_elf_validate_reloc): New function, moved in from
elfcode.h:validate_reloc.
* elfcode.h (validate_reloc): Remove; moved into elf.c and renamed
to _bfd_elf_validate_reloc. Change all callers.
* elf-bfd.h (bfd_section_from_shdr): Declare.
(_bfd_elf_symbol_from_bfd_symbol): Declare.
(_bfd_elf_validate_reloc): Declare.
(_bfd_mips_elf_object_p): Declare.
(_bfd_mips_elf_fake_sections): Declare.
(_bfd_mips_elf_section_from_bfd_section): Declare.
(_bfd_mips_elf_section_processing): Declare.
(_bfd_mips_elf_symbol_processing): Declare.
(_bfd_mips_elf_read_ecoff_info): Declare.
(_bfd_mips_elf_final_write_processing): Declare.
* elfxx-target.h (bfd_elfNN_get_reloc_upper_bound): Don't define
if already defined.
Thu May 30 12:38:49 1996 Ian Lance Taylor <ian@cygnus.com>
+ * elf64-mips.c: Extensive additions to provide better support for
+ writing files and for gas.
+ * elf32-mips.c (_bfd_mips_elf_object_p): New function, broken out
+ of mips_elf_object_p.
+ (mips_elf32_object_p): Rename from mips_elf_object_p; call
+ _bfd_mips_elf_object_p.
+ (_bfd_mips_elf_final_write_processing): Rename from
+ mips_elf_final_write_processing and make globally visible.
+ (_bfd_mips_elf_fake_sections): Rename from
+ mips_elf_fake_sections and make globally visible.
+ (_bfd_mips_elf_section_from_bfd_section): Rename from
+ mips_elf_section_from_bfd_section and make globally visible.
+ (_bfd_mips_elf_section_processing): New function, broken out of
+ mips_elf_section_processing.
+ (mips_elf32_section_processing): Rename from
+ mips_elf_section_processing; call
+ _bfd_mips_elf_section_processing.
+ (_bfd_mips_elf_symbol_processing): Rename from
+ mips_elf_symbol_processing and make globally visible.
+ (_bfd_mips_elf_read_ecoff_info): Rename from
+ mips_elf_read_ecoff_info and make globally visible.
+ (mips_elf32_ecoff_debug_swap): Rename from
+ mips_elf_ecoff_debug_swap.
+ * elf.c (_bfd_elf_symbol_from_bfd_symbol): Use asymbol rather than
+ struct symbol_cache_entry.
+ (_bfd_elf_validate_reloc): New function, moved in from
+ elfcode.h:validate_reloc.
+ * elfcode.h (validate_reloc): Remove; moved into elf.c and renamed
+ to _bfd_elf_validate_reloc. Change all callers.
+ * elf-bfd.h (bfd_section_from_shdr): Declare.
+ (_bfd_elf_symbol_from_bfd_symbol): Declare.
+ (_bfd_elf_validate_reloc): Declare.
+ (_bfd_mips_elf_object_p): Declare.
+ (_bfd_mips_elf_fake_sections): Declare.
+ (_bfd_mips_elf_section_from_bfd_section): Declare.
+ (_bfd_mips_elf_section_processing): Declare.
+ (_bfd_mips_elf_symbol_processing): Declare.
+ (_bfd_mips_elf_read_ecoff_info): Declare.
+ (_bfd_mips_elf_final_write_processing): Declare.
+ * elfxx-target.h (bfd_elfNN_get_reloc_upper_bound): Don't define
+ if already defined.
+
* elf32-mips.c (mips_elf_object_p): Handle E_MIPS_ARCH_4.
(mips_elf_final_write_processing): Likewise.
extern void _bfd_elf_no_info_to_howto PARAMS ((bfd *, arelent *,
Elf_Internal_Rela *));
+extern boolean bfd_section_from_shdr PARAMS ((bfd *, unsigned int shindex));
+
+extern int _bfd_elf_symbol_from_bfd_symbol PARAMS ((bfd *, asymbol **));
+
asection *bfd_section_from_elf_index PARAMS ((bfd *, unsigned int));
boolean _bfd_elf_create_dynamic_sections PARAMS ((bfd *,
struct bfd_link_info *));
file_ptr,
boolean));
+extern boolean _bfd_elf_validate_reloc PARAMS ((bfd *, arelent *));
+
boolean _bfd_elf_create_dynamic_sections PARAMS ((bfd *,
struct bfd_link_info *));
boolean _bfd_elf_create_got_section PARAMS ((bfd *,
/* MIPS ELF specific routines. */
+extern boolean _bfd_mips_elf_object_p PARAMS ((bfd *));
extern boolean _bfd_mips_elf_section_from_shdr
PARAMS ((bfd *, Elf_Internal_Shdr *, const char *));
+extern boolean _bfd_mips_elf_fake_sections
+ PARAMS ((bfd *, Elf_Internal_Shdr *, asection *));
+extern boolean _bfd_mips_elf_section_from_bfd_section
+ PARAMS ((bfd *, Elf_Internal_Shdr *, asection *, int *));
+extern boolean _bfd_mips_elf_section_processing
+ PARAMS ((bfd *, Elf_Internal_Shdr *));
+extern void _bfd_mips_elf_symbol_processing PARAMS ((bfd *, asymbol *));
+extern boolean _bfd_mips_elf_read_ecoff_info
+ PARAMS ((bfd *, asection *, struct ecoff_debug_info *));
+extern void _bfd_mips_elf_final_write_processing PARAMS ((bfd *, boolean));
#endif /* _LIBELF_H_ */
static void bfd_mips_elf32_swap_gptab_out
PARAMS ((bfd *, const Elf32_gptab *, Elf32_External_gptab *));
static boolean mips_elf_sym_is_global PARAMS ((bfd *, asymbol *));
-static boolean mips_elf_object_p PARAMS ((bfd *));
+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 void mips_elf_final_write_processing
- PARAMS ((bfd *, boolean));
static boolean mips_elf_set_private_flags PARAMS ((bfd *, flagword));
static boolean mips_elf_copy_private_bfd_data PARAMS ((bfd *, bfd *));
static boolean mips_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *));
static boolean mips_elf32_section_from_shdr
PARAMS ((bfd *, Elf32_Internal_Shdr *, char *));
-static boolean mips_elf_fake_sections
- PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *));
-static boolean mips_elf_section_from_bfd_section
- PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *, int *));
-static boolean mips_elf_section_processing
+static boolean mips_elf32_section_processing
PARAMS ((bfd *, Elf32_Internal_Shdr *));
-static void mips_elf_symbol_processing PARAMS ((bfd *, asymbol *));
-static boolean mips_elf_read_ecoff_info
- PARAMS ((bfd *, asection *, struct ecoff_debug_info *));
static boolean mips_elf_is_local_label
PARAMS ((bfd *, asymbol *));
static boolean mips_elf_find_nearest_line
return (sym->flags & BSF_SECTION_SYM) == 0 ? true : false;
}
\f
-/* Set the right machine number for a MIPS ELF file. */
+/* Set the right machine number for a MIPS ELF file. This is used for
+ both the 32-bit and the 64-bit ABI. */
-static boolean
-mips_elf_object_p (abfd)
+boolean
+_bfd_mips_elf_object_p (abfd)
bfd *abfd;
{
switch (elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH)
break;
}
+ 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
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 true;
+ return _bfd_mips_elf_object_p (abfd);
}
/* The final processing done just before writing out a MIPS ELF object
file. This gets the MIPS architecture right based on the machine
- number. */
+ number. This is used by both the 32-bit and the 64-bit ABI. */
/*ARGSUSED*/
-static void
-mips_elf_final_write_processing (abfd, linker)
+void
+_bfd_mips_elf_final_write_processing (abfd, linker)
bfd *abfd;
boolean linker;
{
}
/* Set the correct type for a MIPS ELF section. We do this by the
- section name, which is a hack, but ought to work. */
+ section name, which is a hack, but ought to work. This routine is
+ used by both the 32-bit and the 64-bit ABI. */
-static boolean
-mips_elf_fake_sections (abfd, hdr, sec)
+boolean
+_bfd_mips_elf_fake_sections (abfd, hdr, sec)
bfd *abfd;
Elf32_Internal_Shdr *hdr;
asection *sec;
{
hdr->sh_type = SHT_MIPS_GPTAB;
hdr->sh_entsize = sizeof (Elf32_External_gptab);
- /* The sh_info field is set in mips_elf_final_write_processing. */
+ /* The sh_info field is set in final_write_processing. */
}
else if (strcmp (name, ".ucode") == 0)
hdr->sh_type = SHT_MIPS_UCODE;
}
/* Given a BFD section, try to locate the corresponding ELF section
- index. */
+ index. This is used by both the 32-bit and the 64-bit ABI.
+ Actually, it's not clear to me that the 64-bit ABI supports these,
+ but for non-PIC objects we will certainly want support for at least
+ the .scommon section. */
-static boolean
-mips_elf_section_from_bfd_section (abfd, hdr, sec, retval)
+boolean
+_bfd_mips_elf_section_from_bfd_section (abfd, hdr, sec, retval)
bfd *abfd;
Elf32_Internal_Shdr *hdr;
asection *sec;
/* Work over a section just before writing it out. We update the GP
value in the .reginfo section based on the value we are using.
- FIXME: We recognize sections that need the SHF_MIPS_GPREL flag by
- name; there has to be a better way. */
+ This routine is used by both the 32-bit and the 64-bit ABI. FIXME:
+ We recognize sections that need the SHF_MIPS_GPREL flag by name;
+ there has to be a better way. */
-static boolean
-mips_elf_section_processing (abfd, hdr)
+boolean
+_bfd_mips_elf_section_processing (abfd, hdr)
bfd *abfd;
- Elf32_Internal_Shdr *hdr;
+ Elf_Internal_Shdr *hdr;
{
- if (hdr->sh_type == SHT_MIPS_REGINFO)
- {
- bfd_byte buf[4];
-
- BFD_ASSERT (hdr->sh_size == sizeof (Elf32_External_RegInfo));
- BFD_ASSERT (hdr->contents == NULL);
-
- if (bfd_seek (abfd,
- hdr->sh_offset + sizeof (Elf32_External_RegInfo) - 4,
- SEEK_SET) == -1)
- return false;
- bfd_h_put_32 (abfd, (bfd_vma) elf_gp (abfd), buf);
- if (bfd_write (buf, (bfd_size_type) 1, (bfd_size_type) 4, abfd) != 4)
- return false;
- }
-
if (hdr->bfd_section != NULL)
{
const char *name = bfd_get_section_name (abfd, hdr->bfd_section);
return true;
}
+
+/* Work over a section just before writing it out. We update the GP
+ value in the .reginfo section based on the value we are using. The
+ 64 bit ABI does not use the .reginfo section. */
+
+static boolean
+mips_elf32_section_processing (abfd, hdr)
+ bfd *abfd;
+ Elf32_Internal_Shdr *hdr;
+{
+ if (hdr->sh_type == SHT_MIPS_REGINFO)
+ {
+ bfd_byte buf[4];
+
+ BFD_ASSERT (hdr->sh_size == sizeof (Elf32_External_RegInfo));
+ BFD_ASSERT (hdr->contents == NULL);
+
+ if (bfd_seek (abfd,
+ hdr->sh_offset + sizeof (Elf32_External_RegInfo) - 4,
+ SEEK_SET) == -1)
+ return false;
+ bfd_h_put_32 (abfd, (bfd_vma) elf_gp (abfd), buf);
+ if (bfd_write (buf, (bfd_size_type) 1, (bfd_size_type) 4, abfd) != 4)
+ return false;
+ }
+
+ return _bfd_mips_elf_section_processing (abfd, hdr);
+}
\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
static asymbol mips_elf_data_symbol;
static asymbol *mips_elf_data_symbol_ptr;
-/* Handle the special MIPS section numbers that a symbol may use. */
+/* Handle the special MIPS section numbers that a symbol may use.
+ This is used for both the 32-bit and the 64-bit ABI. */
-static void
-mips_elf_symbol_processing (abfd, asym)
+void
+_bfd_mips_elf_symbol_processing (abfd, asym)
bfd *abfd;
asymbol *asym;
{
/* Read ECOFF debugging information from a .mdebug section into a
ecoff_debug_info structure. */
-static boolean
-mips_elf_read_ecoff_info (abfd, section, debug)
+boolean
+_bfd_mips_elf_read_ecoff_info (abfd, section, debug)
bfd *abfd;
asection *section;
struct ecoff_debug_info *debug;
return false;
}
- if (! mips_elf_read_ecoff_info (abfd, msec, &fi->d))
+ if (! _bfd_mips_elf_read_ecoff_info (abfd, msec, &fi->d))
{
msec->flags = origflags;
return false;
reginfo.ri_cprmask[3] |= sub.ri_cprmask[3];
/* ri_gp_value is set by the function
- mips_elf_section_processing when the section is
+ mips_elf32_section_processing when the section is
finally written out. */
/* Hack: reset the SEC_HAS_CONTENTS flag so that
/* The ECOFF linking code expects that we have already
read in the debugging information and set up an
ecoff_debug_info structure, so we do that now. */
- if (! mips_elf_read_ecoff_info (input_bfd, input_section,
- &input_debug))
+ if (! _bfd_mips_elf_read_ecoff_info (input_bfd, input_section,
+ &input_debug))
return false;
if (! (bfd_ecoff_debug_accumulate
\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_elf_ecoff_debug_swap =
+static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap =
{
/* Symbol table magic number. */
magicSym,
_bfd_ecoff_swap_tir_out,
_bfd_ecoff_swap_rndx_out,
/* Function to read in symbolic data. */
- mips_elf_read_ecoff_info
+ _bfd_mips_elf_read_ecoff_info
};
\f
#define TARGET_LITTLE_SYM bfd_elf32_littlemips_vec
#define elf_info_to_howto 0
#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_elf_object_p
+#define elf_backend_object_p mips_elf32_object_p
#define elf_backend_section_from_shdr mips_elf32_section_from_shdr
-#define elf_backend_fake_sections mips_elf_fake_sections
+#define elf_backend_fake_sections _bfd_mips_elf_fake_sections
#define elf_backend_section_from_bfd_section \
- mips_elf_section_from_bfd_section
-#define elf_backend_section_processing mips_elf_section_processing
-#define elf_backend_symbol_processing mips_elf_symbol_processing
+ _bfd_mips_elf_section_from_bfd_section
+#define elf_backend_section_processing mips_elf32_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
#define elf_backend_final_write_processing \
- mips_elf_final_write_processing
-#define elf_backend_ecoff_debug_swap &mips_elf_ecoff_debug_swap
+ _bfd_mips_elf_final_write_processing
+#define elf_backend_ecoff_debug_swap &mips_elf32_ecoff_debug_swap
#define bfd_elf32_bfd_is_local_label mips_elf_is_local_label
#define bfd_elf32_find_nearest_line mips_elf_find_nearest_line
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+/* This file supports the 64-bit MIPS ELF ABI.
+
+ The MIPS 64-bit ELF ABI uses an unusual reloc format. This file
+ overrides the usual ELF reloc handling, and handles reading and
+ writing the relocations here. */
+
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/mips.h"
-/* This file supports the 64-bit MIPS ELF ABI.
-
- The MIPS 64-bit ELF ABI uses an unusual reloc format. This file
- overrides the usual ELF reloc handling, and handles reading and
- writing the relocations here. */
+/* Get the ECOFF swapping routines. The 64-bit ABI is not supposed to
+ use ECOFF. However, we support it anyhow for an easier changeover. */
+#include "coff/sym.h"
+#include "coff/symconst.h"
+#include "coff/internal.h"
+#include "coff/ecoff.h"
+/* The 64 bit versions of the mdebug data structures are in alpha.h. */
+#include "coff/alpha.h"
+#define ECOFF_64
+#include "ecoffswap.h"
static void mips_elf64_swap_reloc_in
PARAMS ((bfd *, const Elf64_Mips_External_Rel *,
static void mips_elf64_swap_reloca_in
PARAMS ((bfd *, const Elf64_Mips_External_Rela *,
Elf64_Mips_Internal_Rela *));
+#if 0
static void mips_elf64_swap_reloc_out
PARAMS ((bfd *, const Elf64_Mips_Internal_Rel *,
Elf64_Mips_External_Rel *));
+#endif
static void mips_elf64_swap_reloca_out
PARAMS ((bfd *, const Elf64_Mips_Internal_Rela *,
Elf64_Mips_External_Rela *));
static reloc_howto_type *mips_elf64_reloc_type_lookup
PARAMS ((bfd *, bfd_reloc_code_real_type));
+static long mips_elf64_get_reloc_upper_bound PARAMS ((bfd *, asection *));
static boolean mips_elf64_slurp_one_reloc_table
PARAMS ((bfd *, asection *, asymbol **, const Elf_Internal_Shdr *));
static boolean mips_elf64_slurp_reloc_table
R_MIPS_CALL_LO16 = 31,
R_MIPS_SCN_DISP = 32,
R_MIPS_REL16 = 33,
- R_MIPS_ADD_IMMEDIATE = 34
+ R_MIPS_ADD_IMMEDIATE = 34,
+ R_MIPS_PJUMP = 35,
+ R_MIPS_RELGOT = 36
};
/* In case we're on a 32-bit machine, construct a 64-bit "-1" value
false, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_MIPS_PJUMP, /* 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_PJUMP", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_MIPS_RELGOT, /* 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_RELGOT", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
false) /* pcrel_offset */
};
false, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_MIPS_PJUMP, /* 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_PJUMP", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ HOWTO (R_MIPS_RELGOT, /* 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_RELGOT", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
false) /* pcrel_offset */
};
dst->r_addend = bfd_h_get_64 (abfd, (bfd_byte *) src->r_addend);
}
+#if 0
+
+/* This is not currently used. */
+
/* Swap out a MIPS 64-bit Rel reloc. */
static void
bfd_h_put_8 (abfd, src->r_type, (bfd_byte *) dst->r_type);
}
+#endif /* 0 */
+
/* Swap out a MIPS 64-bit Rela reloc. */
static void
return NULL;
}
+/* Since each entry in an SHT_REL or SHT_RELA section can represent up
+ to three relocs, we must tell the user to allocate more space. */
+
+static long
+mips_elf64_get_reloc_upper_bound (abfd, sec)
+ bfd *abfd;
+ asection *sec;
+{
+ return (sec->reloc_count * 3 + 1) * sizeof (arelent *);
+}
+
/* Read the relocations from one reloc section. */
static boolean
asection *sec;
PTR data;
{
- /* FIXME. */
- abort ();
+ boolean *failedp = (boolean *) data;
+ unsigned int count;
+ Elf_Internal_Shdr *rela_hdr;
+ Elf64_Mips_External_Rela *ext_rela;
+ unsigned int idx;
+ asymbol *last_sym = 0;
+ int last_sym_idx = 0;
+
+ /* If we have already failed, don't do anything. */
+ if (*failedp)
+ return;
+
+ if ((sec->flags & SEC_RELOC) == 0)
+ return;
+
+ /* The linker backend writes the relocs out itself, and sets the
+ reloc_count field to zero to inhibit writing them here. Also,
+ sometimes the SEC_RELOC flag gets set even when there aren't any
+ relocs. */
+ if (sec->reloc_count == 0)
+ return;
+
+ /* We can combine up to three relocs that refer to the same address
+ if the latter relocs have no associated symbol. */
+ count = 0;
+ for (idx = 0; idx < sec->reloc_count; idx++)
+ {
+ bfd_vma addr;
+ unsigned int i;
+
+ ++count;
+
+ addr = sec->orelocation[idx]->address;
+ for (i = 0; i < 2; i++)
+ {
+ arelent *r;
+
+ if (idx + 1 >= sec->reloc_count)
+ break;
+ r = sec->orelocation[idx + 1];
+ if (r->address != addr
+ || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
+ || (*r->sym_ptr_ptr)->value != 0)
+ break;
+
+ /* We can merge the reloc at IDX + 1 with the reloc at IDX. */
+
+ ++idx;
+ }
+ }
+
+ rela_hdr = &elf_section_data (sec)->rel_hdr;
+
+ rela_hdr->sh_size = rela_hdr->sh_entsize * count;
+ rela_hdr->contents = (PTR) bfd_alloc (abfd, rela_hdr->sh_size);
+ if (rela_hdr->contents == NULL)
+ {
+ *failedp = true;
+ return;
+ }
+
+ ext_rela = (Elf64_Mips_External_Rela *) rela_hdr->contents;
+ for (idx = 0; idx < sec->reloc_count; idx++, ext_rela++)
+ {
+ arelent *ptr;
+ Elf64_Mips_Internal_Rela int_rela;
+ asymbol *sym;
+ int n;
+ unsigned int i;
+
+ ptr = sec->orelocation[idx];
+
+ /* The address of an ELF reloc is section relative for an object
+ file, and absolute for an executable file or shared library.
+ The address of a BFD reloc is always section relative. */
+ if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0)
+ int_rela.r_offset = ptr->address;
+ else
+ int_rela.r_offset = ptr->address + sec->vma;
+
+ sym = *ptr->sym_ptr_ptr;
+ if (sym == last_sym)
+ n = last_sym_idx;
+ else
+ {
+ last_sym = sym;
+ n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym);
+ if (n < 0)
+ {
+ *failedp = true;
+ return;
+ }
+ last_sym_idx = n;
+ }
+
+ int_rela.r_sym = n;
+
+ int_rela.r_addend = ptr->addend;
+
+ int_rela.r_ssym = RSS_UNDEF;
+
+ if ((*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec
+ && ! _bfd_elf_validate_reloc (abfd, ptr))
+ {
+ *failedp = true;
+ return;
+ }
+
+ int_rela.r_type = ptr->howto->type;
+ int_rela.r_type2 = (int) R_MIPS_NONE;
+ int_rela.r_type3 = (int) R_MIPS_NONE;
+
+ for (i = 0; i < 2; i++)
+ {
+ arelent *r;
+
+ if (idx + 1 >= sec->reloc_count)
+ break;
+ r = sec->orelocation[idx + 1];
+ if (r->address != ptr->address
+ || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
+ || (*r->sym_ptr_ptr)->value != 0)
+ break;
+
+ /* We can merge the reloc at IDX + 1 with the reloc at IDX. */
+
+ if (i == 0)
+ int_rela.r_type2 = r->howto->type;
+ else
+ int_rela.r_type3 = r->howto->type;
+
+ ++idx;
+ }
+
+ mips_elf64_swap_reloca_out (abfd, &int_rela, ext_rela);
+ }
+
+ BFD_ASSERT (ext_rela - (Elf64_Mips_External_Rela *) rela_hdr->contents
+ == count);
}
\f
/* Handle a 64-bit MIPS ELF specific section. */
return true;
}
-
+\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_elf64_ecoff_debug_swap =
+{
+ /* Symbol table magic number. */
+ magicSym2,
+ /* Alignment of debugging information. E.g., 4. */
+ 8,
+ /* Sizes of external symbolic information. */
+ sizeof (struct hdr_ext),
+ sizeof (struct dnr_ext),
+ sizeof (struct pdr_ext),
+ sizeof (struct sym_ext),
+ sizeof (struct opt_ext),
+ sizeof (struct fdr_ext),
+ sizeof (struct rfd_ext),
+ sizeof (struct ext_ext),
+ /* Functions to swap in external symbolic data. */
+ ecoff_swap_hdr_in,
+ ecoff_swap_dnr_in,
+ ecoff_swap_pdr_in,
+ ecoff_swap_sym_in,
+ ecoff_swap_opt_in,
+ ecoff_swap_fdr_in,
+ ecoff_swap_rfd_in,
+ ecoff_swap_ext_in,
+ _bfd_ecoff_swap_tir_in,
+ _bfd_ecoff_swap_rndx_in,
+ /* Functions to swap out external symbolic data. */
+ ecoff_swap_hdr_out,
+ ecoff_swap_dnr_out,
+ ecoff_swap_pdr_out,
+ ecoff_swap_sym_out,
+ ecoff_swap_opt_out,
+ ecoff_swap_fdr_out,
+ ecoff_swap_rfd_out,
+ ecoff_swap_ext_out,
+ _bfd_ecoff_swap_tir_out,
+ _bfd_ecoff_swap_rndx_out,
+ /* Function to read in symbolic data. */
+ _bfd_mips_elf_read_ecoff_info
+};
+\f
/* Relocations in the 64 bit MIPS ELF ABI are more complex than in
standard ELF. This structure is used to redirect the relocation
handling routines. */
#define ELF_MACHINE_CODE EM_MIPS
#define ELF_MAXPAGESIZE 0x1000
#define elf_backend_size_info mips_elf64_size_info
+#define elf_backend_object_p _bfd_mips_elf_object_p
#define elf_backend_section_from_shdr mips_elf64_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 _bfd_mips_elf_section_processing
+#define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing
+#define elf_backend_final_write_processing \
+ _bfd_mips_elf_final_write_processing
+#define elf_backend_ecoff_debug_swap &mips_elf64_ecoff_debug_swap
+
+#define bfd_elf64_get_reloc_upper_bound mips_elf64_get_reloc_upper_bound
#define bfd_elf64_bfd_reloc_type_lookup mips_elf64_reloc_type_lookup
#include "elf64-target.h"
projects / binutils-gdb.git / commitdiff