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Add new PPC relocations

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Michael Meissner 1996-01-15 22:50:07 +00:00
parent c682be533c
commit 4500a1128e
3 changed files with 133 additions and 3 deletions
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8
bfd/ChangeLog
View file

@ -1,3 +1,11 @@
Mon Jan 15 17:46:27 1996 Michael Meissner <meissner@tiktok.cygnus.com>
* reloc.c: Add new PowerPC relocations.
* {bfd-in2,libbfd}.h: Regenerate.
* elf32-ppc.c (ppc_elf_howto_raw): Add more PPC relocations.
(ppc_elf_reloc_type_lookup): Lookup new relocations.
Mon Jan 15 14:29:44 1996 Ian Lance Taylor <ian@cygnus.com>
* aoutx.h (howto_table_ext): Fix RELOC_BASE10 and RELOC_BASE22

16
bfd/bfd-in2.h
View file

@ -1633,6 +1633,22 @@ to compensate for the borrow when the low bits are added. */
BFD_RELOC_PPC_JMP_SLOT,
BFD_RELOC_PPC_RELATIVE,
BFD_RELOC_PPC_LOCAL24PC,
BFD_RELOC_PPC_EMB_NADDR32,
BFD_RELOC_PPC_EMB_NADDR16,
BFD_RELOC_PPC_EMB_NADDR16_LO,
BFD_RELOC_PPC_EMB_NADDR16_HI,
BFD_RELOC_PPC_EMB_NADDR16_HA,
BFD_RELOC_PPC_EMB_SDAI16,
BFD_RELOC_PPC_EMB_SDA2I16,
BFD_RELOC_PPC_EMB_SDA2REL,
BFD_RELOC_PPC_EMB_SDA21,
BFD_RELOC_PPC_EMB_MRKREF,
BFD_RELOC_PPC_EMB_RELSEC16,
BFD_RELOC_PPC_EMB_RELST_LO,
BFD_RELOC_PPC_EMB_RELST_HI,
BFD_RELOC_PPC_EMB_RELST_HA,
BFD_RELOC_PPC_EMB_BIT_FLD,
BFD_RELOC_PPC_EMB_RELSDA,
/* The type of reloc used to build a contructor table - at the moment
probably a 32 bit wide absolute relocation, but the target can choose.

112
bfd/elf32-ppc.c
View file

@ -665,7 +665,7 @@ static reloc_howto_type ppc_elf_howto_raw[] =
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* A sign-extended 16 bit value relative to _SDA_BASE, for use with
/* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
small data items. FIXME: Not supported. */
HOWTO (R_PPC_SDAREL16, /* type */
0, /* rightshift */
@ -681,7 +681,6 @@ static reloc_howto_type ppc_elf_howto_raw[] =
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* These next 4 relocations were added by Sun. */
/* 32-bit section relative relocation. FIXME: not supported. */
HOWTO (R_PPC_SECTOFF, /* type */
0, /* rightshift */
@ -760,7 +759,7 @@ static reloc_howto_type ppc_elf_howto_raw[] =
0xffffffff, /* dst_mask */
false), /* pcrel_offset */
/* 16 bit value resulting from the addend minus the symbol */
/* 16 bit value resulting from the addend minus the symbol */
HOWTO (R_PPC_EMB_NADDR16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
@ -822,6 +821,97 @@ static reloc_howto_type ppc_elf_howto_raw[] =
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* 16 bit value resulting from allocating a 4 byte word to hold an
address in the .sdata section, and returning the offset from
_SDA_BASE_ for that relocation */
HOWTO (R_PPC_EMB_SDAI16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_EMB_SDAI16", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* 16 bit value resulting from allocating a 4 byte word to hold an
address in the .sdata2 section, and returning the offset from
_SDA2_BASE_ for that relocation */
HOWTO (R_PPC_EMB_SDA2I16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_EMB_SDA2I16", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
small data items. FIXME: Not supported. */
HOWTO (R_PPC_EMB_SDA2REL, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_EMB_SDA2REL", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
signed offset from the appropriate base, and filling in the register
field with the appropriate register (0, 2, or 13). */
HOWTO (R_PPC_EMB_SDA21, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_EMB_SDA21", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* Relocation not handled: R_PPC_EMB_MRKREF */
/* Relocation not handled: R_PPC_EMB_RELSEC16 */
/* Relocation not handled: R_PPC_EMB_RELST_LO */
/* Relocation not handled: R_PPC_EMB_RELST_HI */
/* Relocation not handled: R_PPC_EMB_RELST_HA */
/* Relocation not handled: R_PPC_EMB_BIT_FLD */
/* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
in the 16 bit signed offset from the appropriate base, and filling in the
register field with the appropriate register (0, 2, or 13). */
HOWTO (R_PPC_EMB_RELSDA, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
true, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_EMB_RELSDA", /* name */
false, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
false), /* pcrel_offset */
/* Phony reloc to handle AIX style TOC entries */
HOWTO (R_PPC_TOC16, /* type */
0, /* rightshift */
@ -905,6 +995,22 @@ ppc_elf_reloc_type_lookup (abfd, code)
case BFD_RELOC_HI16_S_BASEREL: ppc_reloc = R_PPC_SECTOFF_HA; break;
case BFD_RELOC_CTOR: ppc_reloc = R_PPC_ADDR32; break;
case BFD_RELOC_PPC_TOC16: ppc_reloc = R_PPC_TOC16; break;
case BFD_RELOC_PPC_EMB_NADDR32: ppc_reloc = R_PPC_EMB_NADDR32; break;
case BFD_RELOC_PPC_EMB_NADDR16: ppc_reloc = R_PPC_EMB_NADDR16; break;
case BFD_RELOC_PPC_EMB_NADDR16_LO: ppc_reloc = R_PPC_EMB_NADDR16_LO; break;
case BFD_RELOC_PPC_EMB_NADDR16_HI: ppc_reloc = R_PPC_EMB_NADDR16_HI; break;
case BFD_RELOC_PPC_EMB_NADDR16_HA: ppc_reloc = R_PPC_EMB_NADDR16_HA; break;
case BFD_RELOC_PPC_EMB_SDAI16: ppc_reloc = R_PPC_EMB_SDAI16; break;
case BFD_RELOC_PPC_EMB_SDA2I16: ppc_reloc = R_PPC_EMB_SDA2I16; break;
case BFD_RELOC_PPC_EMB_SDA2REL: ppc_reloc = R_PPC_EMB_SDA2REL; break;
case BFD_RELOC_PPC_EMB_SDA21: ppc_reloc = R_PPC_EMB_SDA21; break;
case BFD_RELOC_PPC_EMB_MRKREF: ppc_reloc = R_PPC_EMB_MRKREF; break;
case BFD_RELOC_PPC_EMB_RELSEC16: ppc_reloc = R_PPC_EMB_RELSEC16; break;
case BFD_RELOC_PPC_EMB_RELST_LO: ppc_reloc = R_PPC_EMB_RELST_LO; break;
case BFD_RELOC_PPC_EMB_RELST_HI: ppc_reloc = R_PPC_EMB_RELST_HI; break;
case BFD_RELOC_PPC_EMB_RELST_HA: ppc_reloc = R_PPC_EMB_RELST_HA; break;
case BFD_RELOC_PPC_EMB_BIT_FLD: ppc_reloc = R_PPC_EMB_BIT_FLD; break;
case BFD_RELOC_PPC_EMB_RELSDA: ppc_reloc = R_PPC_EMB_RELSDA; break;
}
return ppc_elf_howto_table[ (int)ppc_reloc ];