/* D30V-specific support for 32-bit ELF
- Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+ Copyright 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
Contributed by Martin Hunt (hunt@cygnus.com).
This file is part of BFD, the Binary File Descriptor library.
#include "sysdep.h"
#include "libbfd.h"
#include "elf-bfd.h"
+#include "elf/d30v.h"
static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
bfd *output_bfd,
char **error_message));
-enum reloc_type
-{
- R_D30V_NONE = 0,
- R_D30V_6,
- R_D30V_9_PCREL,
- R_D30V_9_PCREL_R,
- R_D30V_15,
- R_D30V_15_PCREL,
- R_D30V_15_PCREL_R,
- R_D30V_21,
- R_D30V_21_PCREL,
- R_D30V_21_PCREL_R,
- R_D30V_32,
- R_D30V_32_PCREL,
- R_D30V_32_NORMAL,
- R_D30V_max
-};
-
static reloc_howto_type elf_d30v_howto_table[] =
{
/* This reloc does nothing. */
};
-#define MIN32 (long long)0xffffffff80000000LL
-#define MAX32 0x7fffffffLL
+#define MAX32 ((bfd_signed_vma) 0x7fffffff)
+#define MIN32 (- MAX32 - 1)
static bfd_reloc_status_type
bfd_elf_d30v_reloc (abfd, reloc_entry, symbol, data, input_section, output_bfd, error_message)
bfd *output_bfd;
char **error_message;
{
- long long relocation;
+ bfd_signed_vma relocation;
bfd_vma in1, in2, num;
bfd_vma tmp_addr = 0;
bfd_reloc_status_type r;
reloc_howto_type *howto = reloc_entry->howto;
int make_absolute = 0;
+ if (output_bfd != (bfd *) NULL)
+ {
+ /* Partial linking -- do nothing. */
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
r = bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
input_section, output_bfd, error_message);
if (r != bfd_reloc_continue)
- return r;
+ return r;
/* a hacked-up version of bfd_perform_reloc() follows */
if (bfd_is_und_section (symbol->section)
reloc_target_output_section = symbol->section->output_section;
/* Convert input-section-relative symbol value to absolute. */
- if (output_bfd)
- output_base = 0;
- else
- output_base = reloc_target_output_section->vma;
-
+ output_base = reloc_target_output_section->vma;
relocation += output_base + symbol->section->output_offset;
/* Add in supplied addend. */
if (howto->pc_relative == true)
{
- tmp_addr = input_section->output_section->vma + input_section->output_offset
+ tmp_addr = input_section->output_section->vma + input_section->output_offset
+ reloc_entry->address;
relocation -= tmp_addr;
}
-
- if (output_bfd != (bfd *) NULL)
- {
- /* This is a partial relocation, and we want to apply the relocation
- to the reloc entry rather than the raw data. Modify the reloc
- inplace to reflect what we now know. */
- reloc_entry->addend = relocation;
- reloc_entry->address += input_section->output_offset;
- return flag;
- }
- else
- reloc_entry->addend = 0;
-
+
in1 = bfd_get_32 (abfd, (bfd_byte *) data + addr);
in2 = bfd_get_32 (abfd, (bfd_byte *) data + addr + 4);
| ((in1 & 0x3F) << 26));
in1 &= 0xFFFFFFC0;
in2 = 0x80000000;
-
+
relocation += num;
if (howto->pc_relative == true && howto->bitsize == 32)
{
- /* the D30V has a PC that doesn't wrap and PC-relative jumps */
- /* are signed, so a PC-relative jump can'tbe more than +/- 2^31 byrtes */
- /* if one exceeds this, change it to an absolute jump */
- if (relocation > MAX32)
- {
- relocation = (relocation + tmp_addr) & 0xffffffff;
- make_absolute = 1;
- }
- else if (relocation < MIN32)
+ /* The D30V has a PC that doesn't wrap and PC-relative jumps are
+ signed, so a PC-relative jump can't be more than +/- 2^31 bytes.
+ If one exceeds this, change it to an absolute jump. */
+ if (relocation > MAX32 || relocation < MIN32)
{
relocation = (relocation + tmp_addr) & 0xffffffff;
make_absolute = 1;
}
}
-
+
in1 |= (relocation >> 26) & 0x3F; /* top 6 bits */
- in2 |= ((relocation & 0x03FC0000) << 2); /* next 8 bits */
+ in2 |= ((relocation & 0x03FC0000) << 2); /* next 8 bits */
in2 |= relocation & 0x0003FFFF; /* bottom 18 bits */
-
+
/* change a PC-relative instruction to its absolute equivalent */
/* with this simple hack */
if (make_absolute)
bfd_put_32 (abfd, in1, (bfd_byte *) data + addr);
bfd_put_32 (abfd, in2, (bfd_byte *) data + addr + 4);
-
- return flag;
-}
+ return flag;
+}
static bfd_reloc_status_type
bfd_elf_d30v_reloc_21 (abfd, reloc_entry, symbol, data, input_section, output_bfd, error_message)
reloc_howto_type *howto = reloc_entry->howto;
int mask, max;
+ if (output_bfd != (bfd *) NULL)
+ {
+ /* Partial linking -- do nothing. */
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
r = bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
input_section, output_bfd, error_message);
if (r != bfd_reloc_continue)
- return r;
+ return r;
/* a hacked-up version of bfd_perform_reloc() follows */
if (bfd_is_und_section (symbol->section)
reloc_target_output_section = symbol->section->output_section;
/* Convert input-section-relative symbol value to absolute. */
- if (output_bfd)
- output_base = 0;
- else
- output_base = reloc_target_output_section->vma;
-
+ output_base = reloc_target_output_section->vma;
relocation += output_base + symbol->section->output_offset;
/* Add in supplied addend. */
if (howto->pc_relative == true)
{
- relocation -= input_section->output_section->vma + input_section->output_offset;
+ relocation -= (input_section->output_section->vma
+ + input_section->output_offset);
if (howto->pcrel_offset == true)
relocation -= reloc_entry->address;
}
- if (output_bfd != (bfd *) NULL)
- {
- /* This is a partial relocation, and we want to apply the relocation
- to the reloc entry rather than the raw data. Modify the reloc
- inplace to reflect what we now know. */
- reloc_entry->addend = relocation;
- reloc_entry->address += input_section->output_offset;
- return flag;
- }
- else
- reloc_entry->addend = 0;
-
in1 = bfd_get_32 (abfd, (bfd_byte *) data + addr);
mask = (1 << howto->bitsize) - 1;
if ((int)relocation > max)
flag = bfd_reloc_overflow;
}
- relocation >>= 3;
+ relocation >>= 3;
if (howto->bitsize == 6)
in1 |= ((relocation & (mask >> 12)) << 12);
else
in1 |= relocation & mask;
bfd_put_32 (abfd, in1, (bfd_byte *) data + addr);
-
+
return flag;
-}
+}
/* Map BFD reloc types to D30V ELF reloc types. */
unsigned char elf_reloc_val;
};
-
static const struct d30v_reloc_map d30v_reloc_map[] =
{
{ BFD_RELOC_NONE, R_D30V_NONE, },
static reloc_howto_type *
bfd_elf32_bfd_reloc_type_lookup (abfd, code)
- bfd *abfd;
+ bfd *abfd ATTRIBUTE_UNUSED;
bfd_reloc_code_real_type code;
{
unsigned int i;
static void
d30v_info_to_howto_rel (abfd, cache_ptr, dst)
- bfd *abfd;
+ bfd *abfd ATTRIBUTE_UNUSED;
arelent *cache_ptr;
Elf32_Internal_Rel *dst;
{
static void
d30v_info_to_howto_rela (abfd, cache_ptr, dst)
- bfd *abfd;
+ bfd *abfd ATTRIBUTE_UNUSED;
arelent *cache_ptr;
Elf32_Internal_Rela *dst;
{
}
#define ELF_ARCH bfd_arch_d30v
-#define ELF_MACHINE_CODE EM_CYGNUS_D30V
+#define ELF_MACHINE_CODE EM_D30V
+#define ELF_MACHINE_ALT1 EM_CYGNUS_D30V
#define ELF_MAXPAGESIZE 0x1000
#define TARGET_BIG_SYM bfd_elf32_d30v_vec
projects / deliverable / binutils-gdb.git / blobdiff