mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-28 05:51:04 +00:00
256 lines
9.9 KiB
C
256 lines
9.9 KiB
C
/* PPC64 ELF support for BFD.
|
|
Copyright (C) 2003-2017 Free Software Foundation, Inc.
|
|
|
|
This file is part of BFD, the Binary File Descriptor library.
|
|
|
|
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.
|
|
|
|
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.
|
|
|
|
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. */
|
|
|
|
#ifndef _ELF_PPC64_H
|
|
#define _ELF_PPC64_H
|
|
|
|
#include "elf/reloc-macros.h"
|
|
|
|
/* 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)
|
|
|
|
/* 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)
|
|
|
|
/* 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)
|
|
|
|
/* 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)
|
|
|
|
/* Added for ELFv2. */
|
|
RELOC_NUMBER (R_PPC64_REL24_NOTOC, 116)
|
|
RELOC_NUMBER (R_PPC64_ADDR64_LOCAL, 117)
|
|
RELOC_NUMBER (R_PPC64_ENTRY, 118)
|
|
|
|
#ifndef RELOC_MACROS_GEN_FUNC
|
|
/* Relocation only used internally by ld. If you need to use these
|
|
reloc numbers, you can change them to some other unused value
|
|
without affecting the ABI. They will never appear in object files. */
|
|
RELOC_NUMBER (R_PPC64_LO_DS_OPT, 128)
|
|
/* Reloc only used internally by gas. As above, value is unimportant. */
|
|
RELOC_NUMBER (R_PPC64_16DX_HA, 129)
|
|
#endif
|
|
|
|
/* Power9 split rel16 for addpcis. */
|
|
RELOC_NUMBER (R_PPC64_REL16DX_HA, 246)
|
|
|
|
/* Support STT_GNU_IFUNC plt calls. */
|
|
RELOC_NUMBER (R_PPC64_JMP_IREL, 247)
|
|
RELOC_NUMBER (R_PPC64_IRELATIVE, 248)
|
|
|
|
/* 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)
|
|
|
|
/* These are GNU extensions to enable C++ vtable garbage collection. */
|
|
RELOC_NUMBER (R_PPC64_GNU_VTINHERIT, 253)
|
|
RELOC_NUMBER (R_PPC64_GNU_VTENTRY, 254)
|
|
|
|
END_RELOC_NUMBERS (R_PPC64_max)
|
|
|
|
#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))
|
|
|
|
|
|
/* 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
|
|
|
|
/* 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)
|
|
|
|
// 3 bit other field to bytes.
|
|
static inline unsigned int
|
|
ppc64_decode_local_entry(unsigned int other)
|
|
{
|
|
return ((1 << other) >> 2) << 2;
|
|
}
|
|
|
|
// 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)));
|
|
}
|
|
|
|
/* 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
|
|
|
|
/* Specify the start of the .glink section. */
|
|
#define DT_PPC64_GLINK DT_LOPROC
|
|
|
|
/* Specify the start and size of the .opd section. */
|
|
#define DT_PPC64_OPD (DT_LOPROC + 1)
|
|
#define DT_PPC64_OPDSZ (DT_LOPROC + 2)
|
|
|
|
/* Specify whether various optimisations are possible. */
|
|
#define DT_PPC64_OPT (DT_LOPROC + 3)
|
|
#define PPC64_OPT_TLS 1
|
|
#define PPC64_OPT_MULTI_TOC 2
|
|
|
|
#endif /* _ELF_PPC64_H */
|