/* ARC-specific support for 32-bit ELF
- Copyright 1994, 1995, 1997, 1999, 2001 Free Software Foundation, Inc.
+ Copyright 1994, 1995, 1997, 1999, 2001, 2002
+ Free Software Foundation, Inc.
Contributed by Doug Evans (dje@cygnus.com).
This file is part of BFD, the Binary File Descriptor library.
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/arc.h"
+#include "libiberty.h"
static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
static void arc_info_to_howto_rel
- PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
-static boolean arc_elf_object_p
+ PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
+static bfd_boolean arc_elf_object_p
PARAMS ((bfd *));
static void arc_elf_final_write_processing
- PARAMS ((bfd *, boolean));
+ PARAMS ((bfd *, bfd_boolean));
+static bfd_reloc_status_type arc_elf_b22_pcrel
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
/* Try to minimize the amount of space occupied by relocation tables
on the ROM (not that the ROM won't be swamped by other ELF overhead). */
-#define USE_REL
+#define USE_REL 1
static reloc_howto_type elf_arc_howto_table[] =
{
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_ARC_NONE", /* name */
- false, /* partial_inplace */
+ TRUE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
/* A standard 32 bit relocation. */
HOWTO (R_ARC_32, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_ARC_32", /* name */
- false, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
/* A 26 bit absolute branch, right shifted by 2. */
HOWTO (R_ARC_B26, /* type */
2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
26, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_ARC_B26", /* name */
- false, /* partial_inplace */
+ TRUE, /* partial_inplace */
0x00ffffff, /* src_mask */
0x00ffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
/* A relative 22 bit branch; bits 21-2 are stored in bits 26-7. */
HOWTO (R_ARC_B22_PCREL, /* type */
2, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
22, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
7, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ arc_elf_b22_pcrel, /* special_function */
"R_ARC_B22_PCREL", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0x07ffff80, /* src_mask */
0x07ffff80, /* dst_mask */
- false), /* pcrel_offset */
-
+ FALSE), /* pcrel_offset */
};
/* Map BFD reloc types to ARC ELF reloc types. */
{
unsigned int i;
- for (i = 0; i < sizeof (arc_reloc_map) / sizeof (struct arc_reloc_map); i++)
- {
- if (arc_reloc_map[i].bfd_reloc_val == code)
- return &elf_arc_howto_table[arc_reloc_map[i].elf_reloc_val];
- }
+ for (i = ARRAY_SIZE (arc_reloc_map); i--;)
+ if (arc_reloc_map[i].bfd_reloc_val == code)
+ return elf_arc_howto_table + arc_reloc_map[i].elf_reloc_val;
+
return NULL;
}
arc_info_to_howto_rel (abfd, cache_ptr, dst)
bfd *abfd ATTRIBUTE_UNUSED;
arelent *cache_ptr;
- Elf32_Internal_Rel *dst;
+ Elf_Internal_Rela *dst;
{
unsigned int r_type;
/* Set the right machine number for an ARC ELF file. */
-static boolean
+static bfd_boolean
arc_elf_object_p (abfd)
bfd *abfd;
{
- int mach = bfd_mach_arc_6;
+ unsigned int mach = bfd_mach_arc_6;
if (elf_elfheader(abfd)->e_machine == EM_ARC)
{
static void
arc_elf_final_write_processing (abfd, linker)
bfd *abfd;
- boolean linker ATTRIBUTE_UNUSED;
+ bfd_boolean linker ATTRIBUTE_UNUSED;
{
unsigned long val;
elf_elfheader (abfd)->e_flags |= val;
}
+bfd_reloc_status_type
+arc_elf_b22_pcrel (abfd, reloc_entry, symbol, data, input_section,
+ output_bfd, error_message)
+ bfd * abfd;
+ arelent * reloc_entry;
+ asymbol * symbol;
+ PTR data;
+ asection * input_section;
+ bfd * output_bfd;
+ char ** error_message;
+{
+ /* If linking, back up the final symbol address by the address of the
+ reloc. This cannot be accomplished by setting the pcrel_offset
+ field to TRUE, as bfd_install_relocation will detect this and refuse
+ to install the offset in the first place, but bfd_perform_relocation
+ will still insist on removing it. */
+ if (output_bfd == (bfd *) NULL)
+ reloc_entry->addend -= reloc_entry->address;
+
+ /* Fall through to the default elf reloc handler. */
+ return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
+ input_section, output_bfd, error_message);
+}
+
#define TARGET_LITTLE_SYM bfd_elf32_littlearc_vec
#define TARGET_LITTLE_NAME "elf32-littlearc"
#define TARGET_BIG_SYM bfd_elf32_bigarc_vec
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