0,0 → 1,242 |
/* PPC64 ELF support for BFD. |
Copyright 2003, 2005, 2009, 2010, 2011 Free Software Foundation, Inc. |
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This file is part of BFD, the Binary File Descriptor library. |
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This program is free software; you can redistribute it and/or modify |
it under the terms of the GNU General Public License as published by |
the Free Software Foundation; either version 3 of the License, or |
(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
along with this program; if not, write to the Free Software |
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
MA 02110-1301, USA. */ |
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#ifndef _ELF_PPC64_H |
#define _ELF_PPC64_H |
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#include "elf/reloc-macros.h" |
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/* Relocations. */ |
START_RELOC_NUMBERS (elf_ppc64_reloc_type) |
RELOC_NUMBER (R_PPC64_NONE, 0) |
RELOC_NUMBER (R_PPC64_ADDR32, 1) |
RELOC_NUMBER (R_PPC64_ADDR24, 2) |
RELOC_NUMBER (R_PPC64_ADDR16, 3) |
RELOC_NUMBER (R_PPC64_ADDR16_LO, 4) |
RELOC_NUMBER (R_PPC64_ADDR16_HI, 5) |
RELOC_NUMBER (R_PPC64_ADDR16_HA, 6) |
RELOC_NUMBER (R_PPC64_ADDR14, 7) |
RELOC_NUMBER (R_PPC64_ADDR14_BRTAKEN, 8) |
RELOC_NUMBER (R_PPC64_ADDR14_BRNTAKEN, 9) |
RELOC_NUMBER (R_PPC64_REL24, 10) |
RELOC_NUMBER (R_PPC64_REL14, 11) |
RELOC_NUMBER (R_PPC64_REL14_BRTAKEN, 12) |
RELOC_NUMBER (R_PPC64_REL14_BRNTAKEN, 13) |
RELOC_NUMBER (R_PPC64_GOT16, 14) |
RELOC_NUMBER (R_PPC64_GOT16_LO, 15) |
RELOC_NUMBER (R_PPC64_GOT16_HI, 16) |
RELOC_NUMBER (R_PPC64_GOT16_HA, 17) |
/* 18 unused. 32-bit reloc is R_PPC_PLTREL24. */ |
RELOC_NUMBER (R_PPC64_COPY, 19) |
RELOC_NUMBER (R_PPC64_GLOB_DAT, 20) |
RELOC_NUMBER (R_PPC64_JMP_SLOT, 21) |
RELOC_NUMBER (R_PPC64_RELATIVE, 22) |
/* 23 unused. 32-bit reloc is R_PPC_LOCAL24PC. */ |
RELOC_NUMBER (R_PPC64_UADDR32, 24) |
RELOC_NUMBER (R_PPC64_UADDR16, 25) |
RELOC_NUMBER (R_PPC64_REL32, 26) |
RELOC_NUMBER (R_PPC64_PLT32, 27) |
RELOC_NUMBER (R_PPC64_PLTREL32, 28) |
RELOC_NUMBER (R_PPC64_PLT16_LO, 29) |
RELOC_NUMBER (R_PPC64_PLT16_HI, 30) |
RELOC_NUMBER (R_PPC64_PLT16_HA, 31) |
/* 32 unused. 32-bit reloc is R_PPC_SDAREL16. */ |
RELOC_NUMBER (R_PPC64_SECTOFF, 33) |
RELOC_NUMBER (R_PPC64_SECTOFF_LO, 34) |
RELOC_NUMBER (R_PPC64_SECTOFF_HI, 35) |
RELOC_NUMBER (R_PPC64_SECTOFF_HA, 36) |
RELOC_NUMBER (R_PPC64_REL30, 37) |
RELOC_NUMBER (R_PPC64_ADDR64, 38) |
RELOC_NUMBER (R_PPC64_ADDR16_HIGHER, 39) |
RELOC_NUMBER (R_PPC64_ADDR16_HIGHERA, 40) |
RELOC_NUMBER (R_PPC64_ADDR16_HIGHEST, 41) |
RELOC_NUMBER (R_PPC64_ADDR16_HIGHESTA, 42) |
RELOC_NUMBER (R_PPC64_UADDR64, 43) |
RELOC_NUMBER (R_PPC64_REL64, 44) |
RELOC_NUMBER (R_PPC64_PLT64, 45) |
RELOC_NUMBER (R_PPC64_PLTREL64, 46) |
RELOC_NUMBER (R_PPC64_TOC16, 47) |
RELOC_NUMBER (R_PPC64_TOC16_LO, 48) |
RELOC_NUMBER (R_PPC64_TOC16_HI, 49) |
RELOC_NUMBER (R_PPC64_TOC16_HA, 50) |
RELOC_NUMBER (R_PPC64_TOC, 51) |
RELOC_NUMBER (R_PPC64_PLTGOT16, 52) |
RELOC_NUMBER (R_PPC64_PLTGOT16_LO, 53) |
RELOC_NUMBER (R_PPC64_PLTGOT16_HI, 54) |
RELOC_NUMBER (R_PPC64_PLTGOT16_HA, 55) |
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/* The following relocs were added in the 64-bit PowerPC ELF ABI |
revision 1.2. */ |
RELOC_NUMBER (R_PPC64_ADDR16_DS, 56) |
RELOC_NUMBER (R_PPC64_ADDR16_LO_DS, 57) |
RELOC_NUMBER (R_PPC64_GOT16_DS, 58) |
RELOC_NUMBER (R_PPC64_GOT16_LO_DS, 59) |
RELOC_NUMBER (R_PPC64_PLT16_LO_DS, 60) |
RELOC_NUMBER (R_PPC64_SECTOFF_DS, 61) |
RELOC_NUMBER (R_PPC64_SECTOFF_LO_DS, 62) |
RELOC_NUMBER (R_PPC64_TOC16_DS, 63) |
RELOC_NUMBER (R_PPC64_TOC16_LO_DS, 64) |
RELOC_NUMBER (R_PPC64_PLTGOT16_DS, 65) |
RELOC_NUMBER (R_PPC64_PLTGOT16_LO_DS, 66) |
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/* Relocs added to support TLS. PowerPC64 ELF ABI revision 1.5. */ |
RELOC_NUMBER (R_PPC64_TLS, 67) |
RELOC_NUMBER (R_PPC64_DTPMOD64, 68) |
RELOC_NUMBER (R_PPC64_TPREL16, 69) |
RELOC_NUMBER (R_PPC64_TPREL16_LO, 70) |
RELOC_NUMBER (R_PPC64_TPREL16_HI, 71) |
RELOC_NUMBER (R_PPC64_TPREL16_HA, 72) |
RELOC_NUMBER (R_PPC64_TPREL64, 73) |
RELOC_NUMBER (R_PPC64_DTPREL16, 74) |
RELOC_NUMBER (R_PPC64_DTPREL16_LO, 75) |
RELOC_NUMBER (R_PPC64_DTPREL16_HI, 76) |
RELOC_NUMBER (R_PPC64_DTPREL16_HA, 77) |
RELOC_NUMBER (R_PPC64_DTPREL64, 78) |
RELOC_NUMBER (R_PPC64_GOT_TLSGD16, 79) |
RELOC_NUMBER (R_PPC64_GOT_TLSGD16_LO, 80) |
RELOC_NUMBER (R_PPC64_GOT_TLSGD16_HI, 81) |
RELOC_NUMBER (R_PPC64_GOT_TLSGD16_HA, 82) |
RELOC_NUMBER (R_PPC64_GOT_TLSLD16, 83) |
RELOC_NUMBER (R_PPC64_GOT_TLSLD16_LO, 84) |
RELOC_NUMBER (R_PPC64_GOT_TLSLD16_HI, 85) |
RELOC_NUMBER (R_PPC64_GOT_TLSLD16_HA, 86) |
RELOC_NUMBER (R_PPC64_GOT_TPREL16_DS, 87) |
RELOC_NUMBER (R_PPC64_GOT_TPREL16_LO_DS, 88) |
RELOC_NUMBER (R_PPC64_GOT_TPREL16_HI, 89) |
RELOC_NUMBER (R_PPC64_GOT_TPREL16_HA, 90) |
RELOC_NUMBER (R_PPC64_GOT_DTPREL16_DS, 91) |
RELOC_NUMBER (R_PPC64_GOT_DTPREL16_LO_DS, 92) |
RELOC_NUMBER (R_PPC64_GOT_DTPREL16_HI, 93) |
RELOC_NUMBER (R_PPC64_GOT_DTPREL16_HA, 94) |
RELOC_NUMBER (R_PPC64_TPREL16_DS, 95) |
RELOC_NUMBER (R_PPC64_TPREL16_LO_DS, 96) |
RELOC_NUMBER (R_PPC64_TPREL16_HIGHER, 97) |
RELOC_NUMBER (R_PPC64_TPREL16_HIGHERA, 98) |
RELOC_NUMBER (R_PPC64_TPREL16_HIGHEST, 99) |
RELOC_NUMBER (R_PPC64_TPREL16_HIGHESTA, 100) |
RELOC_NUMBER (R_PPC64_DTPREL16_DS, 101) |
RELOC_NUMBER (R_PPC64_DTPREL16_LO_DS, 102) |
RELOC_NUMBER (R_PPC64_DTPREL16_HIGHER, 103) |
RELOC_NUMBER (R_PPC64_DTPREL16_HIGHERA, 104) |
RELOC_NUMBER (R_PPC64_DTPREL16_HIGHEST, 105) |
RELOC_NUMBER (R_PPC64_DTPREL16_HIGHESTA, 106) |
RELOC_NUMBER (R_PPC64_TLSGD, 107) |
RELOC_NUMBER (R_PPC64_TLSLD, 108) |
RELOC_NUMBER (R_PPC64_TOCSAVE, 109) |
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/* Added when HA and HI relocs were changed to report overflows. */ |
RELOC_NUMBER (R_PPC64_ADDR16_HIGH, 110) |
RELOC_NUMBER (R_PPC64_ADDR16_HIGHA, 111) |
RELOC_NUMBER (R_PPC64_TPREL16_HIGH, 112) |
RELOC_NUMBER (R_PPC64_TPREL16_HIGHA, 113) |
RELOC_NUMBER (R_PPC64_DTPREL16_HIGH, 114) |
RELOC_NUMBER (R_PPC64_DTPREL16_HIGHA, 115) |
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#ifndef RELOC_MACROS_GEN_FUNC |
/* Fake relocation only used internally by ld. */ |
RELOC_NUMBER (R_PPC64_LO_DS_OPT, 128) |
#endif |
/* Support STT_GNU_IFUNC plt calls. */ |
RELOC_NUMBER (R_PPC64_JMP_IREL, 247) |
RELOC_NUMBER (R_PPC64_IRELATIVE, 248) |
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/* These are GNU extensions used in PIC code sequences. */ |
RELOC_NUMBER (R_PPC64_REL16, 249) |
RELOC_NUMBER (R_PPC64_REL16_LO, 250) |
RELOC_NUMBER (R_PPC64_REL16_HI, 251) |
RELOC_NUMBER (R_PPC64_REL16_HA, 252) |
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/* These are GNU extensions to enable C++ vtable garbage collection. */ |
RELOC_NUMBER (R_PPC64_GNU_VTINHERIT, 253) |
RELOC_NUMBER (R_PPC64_GNU_VTENTRY, 254) |
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END_RELOC_NUMBERS (R_PPC64_max) |
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#define IS_PPC64_TLS_RELOC(R) \ |
(((R) >= R_PPC64_TLS && (R) <= R_PPC64_DTPREL16_HIGHESTA) \ |
|| ((R) >= R_PPC64_TPREL16_HIGH && (R) <= R_PPC64_DTPREL16_HIGHA)) |
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/* e_flags bits specifying ABI. |
1 for original function descriptor using ABI, |
2 for revised ABI without function descriptors, |
0 for unspecified or not using any features affected by the differences. */ |
#define EF_PPC64_ABI 3 |
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/* The ELFv2 ABI uses three bits in the symbol st_other field of a |
function definition to specify the number of instructions between a |
function's global entry point and local entry point. |
The global entry point is used when it is necessary to set up the |
toc pointer (r2) for the function. Callers must enter the global |
entry point with r12 set to the global entry point address. On |
return from the function, r2 may have a different value to that |
which it had on entry. |
The local entry point is used when r2 is known to already be valid |
for the function. There is no requirement on r12 when using the |
local entry point, and on return r2 will contain the same value as |
at entry. |
A value of zero in these bits means that the function has a single |
entry point with no requirement on r12 or r2, and that on return r2 |
will contain the same value as at entry. |
Values of one and seven are reserved. */ |
#define STO_PPC64_LOCAL_BIT 5 |
#define STO_PPC64_LOCAL_MASK (7 << STO_PPC64_LOCAL_BIT) |
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// 3 bit other field to bytes. |
static inline unsigned int |
ppc64_decode_local_entry(unsigned int other) |
{ |
return ((1 << other) >> 2) << 2; |
} |
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// bytes to field value. |
static inline unsigned int |
ppc64_encode_local_entry(unsigned int val) |
{ |
return (val >= 4 * 4 |
? (val >= 8 * 4 |
? (val >= 16 * 4 ? 6 : 5) |
: 4) |
: (val >= 2 * 4 |
? 3 |
: (val >= 1 * 4 ? 2 : 0))); |
} |
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/* st_other to number of bytes. */ |
#define PPC64_LOCAL_ENTRY_OFFSET(other) \ |
ppc64_decode_local_entry (((other) & STO_PPC64_LOCAL_MASK) \ |
>> STO_PPC64_LOCAL_BIT) |
/* number of bytes to st_other. */ |
#define PPC64_SET_LOCAL_ENTRY_OFFSET(val) \ |
ppc64_encode_local_entry (val) << STO_PPC64_LOCAL_BIT |
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/* Specify the start of the .glink section. */ |
#define DT_PPC64_GLINK DT_LOPROC |
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/* Specify the start and size of the .opd section. */ |
#define DT_PPC64_OPD (DT_LOPROC + 1) |
#define DT_PPC64_OPDSZ (DT_LOPROC + 2) |
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/* Specify whether various optimisations are possible. */ |
#define DT_PPC64_OPT (DT_LOPROC + 3) |
#define PPC64_OPT_TLS 1 |
#define PPC64_OPT_MULTI_TOC 2 |
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#endif /* _ELF_PPC64_H */ |