mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2024-12-03 09:41:26 +00:00
* elf32-mn10300.c (reloc_type): Remove big endian mn10300 reloc
variants.
(elf32_mn10300_howto_table, mn10300_reloc_map): Likewise.
(bfd_elf32_mn10300_reloc): Write data in little endian format.
* reloc.c: Remove mn10300 big endian relocs.
* bfd-in2.h, libbfd.h: Rebuilt.
* elf32-mn10200.c: Update from elf32-mn10300.c.
This commit is contained in:
Jeff Law
parent
dfd832cb9b
commit
e14af8fc41
@ -24,22 +24,37 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
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PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
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static void mn10200_info_to_howto_rel
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PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
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static void mn10200_info_to_howto
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PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
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static bfd_reloc_status_type bfd_elf32_mn10200_reloc
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PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
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/* Try to minimize the amount of space occupied by relocation tables
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on the ROM (not that the ROM won't be swamped by other ELF overhead). */
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#define USE_REL
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/* We have to use RELA instructions since md_apply_fix3 in the assembler
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does absolutely nothing. */
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#define USE_RELA
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enum reloc_type
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{
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R_MN10200_NONE = 0,
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#if 0
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R_MN10200_32,
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R_MN10200_16,
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R_MN10200_8,
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R_MN10200_32B,
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R_MN10200_16B,
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R_MN10200_PCREL32_1BYTE,
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R_MN10200_PCREL16_1BYTE,
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R_MN10200_PCREL8_1BYTE,
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R_MN10200_PCREL32_2BYTE,
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R_MN10200_PCREL16_2BYTE,
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#endif
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R_MN10200_MAX
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};
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static reloc_howto_type elf_mn10200_howto_table[] =
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{
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/* */
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/* Dummy relocation. Does nothing. */
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HOWTO (R_MN10200_NONE,
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0,
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2,
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@ -53,6 +68,153 @@ static reloc_howto_type elf_mn10200_howto_table[] =
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0,
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0,
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false),
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#if 0
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/* Standard 32 bit reloc. */
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HOWTO (R_MN10200_32,
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0,
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2,
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32,
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false,
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0,
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complain_overflow_bitfield,
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bfd_elf_generic_reloc,
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"R_MN10200_32",
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false,
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0xffffffff,
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0xffffffff,
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false),
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/* Standard 16 bit reloc. */
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HOWTO (R_MN10200_16,
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0,
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1,
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16,
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false,
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0,
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complain_overflow_bitfield,
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bfd_elf_generic_reloc,
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"R_MN10200_16",
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false,
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0xffff,
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0xffff,
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false),
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/* Standard 8 bit reloc. */
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HOWTO (R_MN10200_8,
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0,
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0,
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8,
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false,
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0,
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complain_overflow_bitfield,
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bfd_elf_generic_reloc,
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"R_MN10200_8",
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false,
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0xff,
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0xff,
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false),
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/* Standard 32 bit reloc, except it explicitly writes big-endian format. */
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HOWTO (R_MN10200_32B,
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0,
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2,
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32,
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false,
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0,
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complain_overflow_bitfield,
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bfd_elf32_mn10200_reloc,
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"R_MN10200_32B",
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false,
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0xffffffff,
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0xffffffff,
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false),
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/* Standard 16 bit reloc, except it explicitly writes big-endian format. */
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HOWTO (R_MN10200_16B,
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0,
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1,
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16,
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false,
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0,
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complain_overflow_bitfield,
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bfd_elf32_mn10200_reloc,
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"R_MN10200_16B",
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false,
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0xffff,
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0xffff,
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false),
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/* Simple 32bit pc-relative reloc with a 1 byte adjustment
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to get the pc-relative offset correct. */
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HOWTO (R_MN10200_PCREL32_1BYTE,
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0,
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2,
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32,
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true,
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0,
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complain_overflow_bitfield,
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bfd_elf32_mn10200_reloc,
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"R_MN10200_PCREL32_1BYTE",
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true,
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0xffffffff,
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0xffffffff,
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false),
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/* Simple 16bit pc-relative reloc with a 1 byte adjustment
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to get the pc-relative offset correct. */
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HOWTO (R_MN10200_PCREL16_1BYTE,
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0,
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1,
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16,
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true,
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0,
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complain_overflow_bitfield,
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bfd_elf32_mn10200_reloc,
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"R_MN10200_PCREL16_1BYTE",
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true,
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0xffff,
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0xffff,
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false),
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/* Simple 8 pc-relative reloc with a 1 byte adjustment
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to get the pc-relative offset correct. */
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HOWTO (R_MN10200_PCREL8_1BYTE,
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0,
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0,
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8,
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true,
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0,
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complain_overflow_bitfield,
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bfd_elf32_mn10200_reloc,
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"R_MN10200_PCREL8_1BYTE",
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true,
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0xff,
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0xff,
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true),
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/* Simple 32 pc-relative reloc with a 2 byte adjustment
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to get the pc-relative offset correct. */
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HOWTO (R_MN10200_PCREL32_2BYTE,
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0,
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2,
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32,
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true,
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0,
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complain_overflow_bitfield,
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bfd_elf32_mn10200_reloc,
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"R_MN10200_PCREL32_2BYTE",
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true,
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0xffffffff,
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0xffffffff,
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true),
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/* Simple 16 pc-relative reloc with a 2 byte adjustment
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to get the pc-relative offset correct. */
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HOWTO (R_MN10200_PCREL16_2BYTE,
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0,
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1,
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16,
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true,
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0,
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complain_overflow_bitfield,
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bfd_elf32_mn10200_reloc,
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"R_MN10200_PCREL16_2BYTE",
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true,
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0xffff,
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0xffff,
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true),
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#endif
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};
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struct mn10200_reloc_map
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@ -64,6 +226,18 @@ struct mn10200_reloc_map
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static const struct mn10200_reloc_map mn10200_reloc_map[] =
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{
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{ BFD_RELOC_NONE, R_MN10200_NONE, },
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#if 0
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{ BFD_RELOC_32, R_MN10200_32, },
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{ BFD_RELOC_16, R_MN10200_16, },
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{ BFD_RELOC_8, R_MN10200_8, },
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{ BFD_RELOC_MN10200_32B, R_MN10200_32B, },
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{ BFD_RELOC_MN10200_16B, R_MN10200_16B, },
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{ BFD_RELOC_32_PCREL, R_MN10200_PCREL32_1BYTE, },
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{ BFD_RELOC_16_PCREL, R_MN10200_PCREL16_1BYTE, },
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{ BFD_RELOC_8_PCREL, R_MN10200_PCREL8_1BYTE, },
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{ BFD_RELOC_MN10200_32_PCREL, R_MN10200_PCREL32_2BYTE, },
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{ BFD_RELOC_MN10200_16_PCREL, R_MN10200_PCREL16_2BYTE, },
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#endif
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};
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static reloc_howto_type *
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@ -84,13 +258,13 @@ bfd_elf32_bfd_reloc_type_lookup (abfd, code)
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return NULL;
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}
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/* Set the howto pointer for an V850 ELF reloc. */
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/* Set the howto pointer for an MN10200 ELF reloc. */
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static void
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mn10200_info_to_howto_rel (abfd, cache_ptr, dst)
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mn10200_info_to_howto (abfd, cache_ptr, dst)
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bfd *abfd;
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arelent *cache_ptr;
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Elf32_Internal_Rel *dst;
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Elf32_Internal_Rela *dst;
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{
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unsigned int r_type;
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@ -99,13 +273,112 @@ mn10200_info_to_howto_rel (abfd, cache_ptr, dst)
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cache_ptr->howto = &elf_mn10200_howto_table[r_type];
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}
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static bfd_reloc_status_type
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bfd_elf32_mn10200_reloc (abfd, reloc, symbol, data, isection, obfd, err)
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bfd *abfd;
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arelent *reloc;
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asymbol *symbol;
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PTR data;
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asection *isection;
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bfd *obfd;
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char **err;
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{
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if (obfd != (bfd *) NULL
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&& (symbol->flags & BSF_SECTION_SYM) == 0
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&& (! reloc->howto->partial_inplace
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|| reloc->addend == 0))
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{
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reloc->address += isection->output_offset;
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return bfd_reloc_ok;
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}
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else if (obfd != NULL)
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{
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return bfd_reloc_continue;
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}
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#if 0
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/* Catch relocs involving undefined symbols. */
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if (bfd_is_und_section (symbol->section)
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&& (symbol->flags & BSF_WEAK) == 0
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&& obfd == NULL)
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return bfd_reloc_undefined;
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/* We handle final linking of some relocs ourselves. */
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{
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long relocation;
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/* Is the address of the relocation really within the section? */
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if (reloc->address > isection->_cooked_size)
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return bfd_reloc_outofrange;
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/* Work out which section the relocation is targetted at and the
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initial relocation command value. */
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/* Get symbol value. (Common symbols are special.) */
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if (bfd_is_com_section (symbol->section))
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relocation = 0;
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else
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relocation = symbol->value;
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/* Convert input-section-relative symbol value to absolute + addend. */
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relocation += symbol->section->output_section->vma;
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relocation += symbol->section->output_offset;
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relocation += reloc->addend;
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if (reloc->howto->pc_relative == true)
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{
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/* Here the variable relocation holds the final address of the
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symbol we are relocating against, plus any addend. */
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relocation -= isection->output_section->vma + isection->output_offset;
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/* Deal with pcrel_offset */
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relocation -= reloc->address;
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if (reloc->howto->type == R_MN10200_PCREL32_1BYTE
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|| reloc->howto->type == R_MN10200_PCREL16_1BYTE
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|| reloc->howto->type == R_MN10200_PCREL8_1BYTE)
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relocation += 1;
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else if (reloc->howto->type == R_MN10200_PCREL32_2BYTE
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|| reloc->howto->type == R_MN10200_PCREL16_2BYTE)
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relocation += 2;
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}
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/* I've got no clue... */
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reloc->addend = 0;
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if (reloc->howto->size == 0)
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{
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if (relocation > 0x7f || relocation < -0x80)
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return bfd_reloc_overflow;
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bfd_put_8 (abfd, relocation & 0xff,
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(bfd_byte *)data + reloc->address);
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}
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else if (reloc->howto->size == 1)
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{
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if (relocation > 0x7fff || relocation < -0x8000)
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return bfd_reloc_overflow;
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bfd_putb16 (relocation & 0xffff, (bfd_byte *)data + reloc->address);
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}
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else if (reloc->howto->size == 2)
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bfd_putb32 (relocation, (bfd_byte *)data + reloc->address);
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return bfd_reloc_ok;
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}
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#endif
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return bfd_reloc_continue;
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}
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#define TARGET_LITTLE_SYM bfd_elf32_mn10200_vec
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#define TARGET_LITTLE_NAME "elf32-mn10200"
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#define ELF_ARCH bfd_arch_mn10200
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#define ELF_MACHINE_CODE EM_CYGNUS_MN10200
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#define ELF_MAXPAGESIZE 0x1000
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#define elf_info_to_howto 0
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#define elf_info_to_howto_rel mn10200_info_to_howto_rel
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#define elf_info_to_howto mn10200_info_to_howto
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#define elf_info_to_howto_rel 0
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#define elf_symbol_leading_char '_'
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#include "elf32-target.h"
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@ -40,8 +40,6 @@ enum reloc_type
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R_MN10300_32,
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R_MN10300_16,
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R_MN10300_8,
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R_MN10300_32B,
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R_MN10300_16B,
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R_MN10300_PCREL32_1BYTE,
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R_MN10300_PCREL16_1BYTE,
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R_MN10300_PCREL8_1BYTE,
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@ -108,34 +106,6 @@ static reloc_howto_type elf_mn10300_howto_table[] =
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0xff,
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0xff,
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false),
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/* Standard 32 bit reloc, except it explicitly writes big-endian format. */
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HOWTO (R_MN10300_32B,
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0,
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2,
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32,
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false,
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0,
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complain_overflow_bitfield,
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bfd_elf32_mn10300_reloc,
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"R_MN10300_32B",
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false,
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0xffffffff,
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0xffffffff,
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false),
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/* Standard 16 bit reloc, except it explicitly writes big-endian format. */
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HOWTO (R_MN10300_16B,
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0,
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1,
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16,
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false,
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0,
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complain_overflow_bitfield,
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bfd_elf32_mn10300_reloc,
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"R_MN10300_16B",
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false,
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0xffff,
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0xffff,
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false),
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/* Simple 32bit pc-relative reloc with a 1 byte adjustment
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to get the pc-relative offset correct. */
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HOWTO (R_MN10300_PCREL32_1BYTE,
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@ -225,8 +195,6 @@ static const struct mn10300_reloc_map mn10300_reloc_map[] =
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{ BFD_RELOC_32, R_MN10300_32, },
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{ BFD_RELOC_16, R_MN10300_16, },
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{ BFD_RELOC_8, R_MN10300_8, },
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{ BFD_RELOC_MN10300_32B, R_MN10300_32B, },
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{ BFD_RELOC_MN10300_16B, R_MN10300_16B, },
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{ BFD_RELOC_32_PCREL, R_MN10300_PCREL32_1BYTE, },
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{ BFD_RELOC_16_PCREL, R_MN10300_PCREL16_1BYTE, },
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{ BFD_RELOC_8_PCREL, R_MN10300_PCREL8_1BYTE, },
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@ -352,10 +320,11 @@ bfd_elf32_mn10300_reloc (abfd, reloc, symbol, data, isection, obfd, err)
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if (relocation > 0x7fff || relocation < -0x8000)
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return bfd_reloc_overflow;
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bfd_putb16 (relocation & 0xffff, (bfd_byte *)data + reloc->address);
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bfd_put_16 (abfd, relocation & 0xffff,
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(bfd_byte *)data + reloc->address);
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}
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else if (reloc->howto->size == 2)
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bfd_putb32 (relocation, (bfd_byte *)data + reloc->address);
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bfd_put_32 (abfd, relocation, (bfd_byte *)data + reloc->address);
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return bfd_reloc_ok;
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}
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