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* elf32-h8300.c (h8_elf_howto_table): Add new PC relative

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relocations.
	(h8_reloc_map): Similarly.
	(elf32_h8_final_link_relocate): Remove incorrect overflow tests.
	Add support for PC relative relocations.
This commit is contained in:
Jeff Law
2001-08-30 02:15:58 +00:00
parent a116b84cf9
commit f235248854
2 changed files with 54 additions and 6 deletions
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6
bfd/ChangeLog
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@ -5,6 +5,12 @@
2001-08-29 Jeff Law <law@redhat.com> 2001-08-29 Jeff Law <law@redhat.com>
* elf32-h8300.c (h8_elf_howto_table): Add new PC relative
relocations.
(h8_reloc_map): Similarly.
(elf32_h8_final_link_relocate): Remove incorrect overflow tests.
Add support for PC relative relocations.
* elf32-h8300.c: Put all prototypes together. * elf32-h8300.c: Put all prototypes together.
(elf32_h8_info_to_howto): Parameter elf_reloc is used. (elf32_h8_info_to_howto): Parameter elf_reloc is used.
(elf32_h8_final_link_relocate): New function for linker. (elf32_h8_final_link_relocate): New function for linker.

54
bfd/elf32-h8300.c
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@ -171,6 +171,34 @@ static reloc_howto_type h8_elf_howto_table[] =
0, /* src_mask */ 0, /* src_mask */
0xffffffff, /* dst_mask */ 0xffffffff, /* dst_mask */
false), /* pcrel_offset */ false), /* pcrel_offset */
#define R_H8_PCREL16_X (R_H8_DIR32A16_X + 1)
HOWTO (R_H8_PCREL16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
true, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
NULL, /* special_function */
"R_H8_PCREL16", /* name */
false, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
true), /* pcrel_offset */
#define R_H8_PCREL8_X (R_H8_PCREL16_X + 1)
HOWTO (R_H8_PCREL8, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
true, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
NULL, /* special_function */
"R_H8_PCREL8", /* name */
false, /* partial_inplace */
0xff, /* src_mask */
0xff, /* dst_mask */
true), /* pcrel_offset */
}; };
/* This structure is used to map BFD reloc codes to H8 ELF relocs. */ /* This structure is used to map BFD reloc codes to H8 ELF relocs. */
@ -194,6 +222,8 @@ static const struct elf_reloc_map h8_reloc_map[] =
{ BFD_RELOC_H8_DIR24A8, R_H8_DIR24A8_X }, { BFD_RELOC_H8_DIR24A8, R_H8_DIR24A8_X },
{ BFD_RELOC_H8_DIR24R8, R_H8_DIR24R8_X }, { BFD_RELOC_H8_DIR24R8, R_H8_DIR24R8_X },
{ BFD_RELOC_H8_DIR32A16, R_H8_DIR32A16_X }, { BFD_RELOC_H8_DIR32A16, R_H8_DIR32A16_X },
{ BFD_RELOC_16_PCREL, R_H8_PCREL16_X },
{ BFD_RELOC_8_PCREL, R_H8_PCREL8_X },
}; };
@ -287,9 +317,6 @@ elf32_h8_final_link_relocate (r_type, input_bfd, output_bfd,
case R_H8_DIR8: case R_H8_DIR8:
value += addend; value += addend;
if ((long) value > 0x7f || (long) value < -0x80)
return bfd_reloc_overflow;
bfd_put_8 (input_bfd, value, hit_data); bfd_put_8 (input_bfd, value, hit_data);
return bfd_reloc_ok; return bfd_reloc_ok;
@ -297,14 +324,29 @@ elf32_h8_final_link_relocate (r_type, input_bfd, output_bfd,
case R_H8_DIR24R8: case R_H8_DIR24R8:
value += addend; value += addend;
if ((long) value > 0x7fffff || (long) value < -0x800000)
return bfd_reloc_overflow;
value &= 0xffffff; value &= 0xffffff;
value |= (bfd_get_32 (input_bfd, hit_data) & 0xff000000); value |= (bfd_get_32 (input_bfd, hit_data) & 0xff000000);
bfd_put_32 (input_bfd, value, hit_data); bfd_put_32 (input_bfd, value, hit_data);
return bfd_reloc_ok; return bfd_reloc_ok;
case R_H8_PCREL16:
value -= (input_section->output_section->vma
+ input_section->output_offset);
value -= offset;
value += addend;
bfd_put_16 (input_bfd, value, hit_data);
return bfd_reloc_ok;
case R_H8_PCREL8:
value -= (input_section->output_section->vma
+ input_section->output_offset);
value -= offset;
value += addend;
bfd_put_8 (input_bfd, value, hit_data);
return bfd_reloc_ok;
default: default:
return bfd_reloc_notsupported; return bfd_reloc_notsupported;
} }