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binutils-gdb/include/elf/ppc64.h
Alan Modra ee67d69a3f Add .abiversion related support for ELFv2 
Defines bits in ELF e_flags to differentiate ELFv2 objects from ELFv2,
adds .abiversion directive to explicitly choose the ABI, and code to
check and automatically select ABI.

include/elf/
	* ppc64.h (EF_PPC64_ABI): Define.
bfd/
	* elf64-ppc.c (abiversion, set_abiversion): New functions.
	(ppc64_elf_get_synthetic_symtab): Handle ELFv2 objects without .opd.
	(struct ppc_link_hash_table): Add opd_abi.
	(ppc64_elf_check_relocs): Check no .opd with ELFv2.
	(ppc64_elf_merge_private_bfd_data): New function.
	(ppc64_elf_print_private_bfd_data): New function.
	(ppc64_elf_tls_setup): Set htab->opd_abi.
	(ppc64_elf_size_dynamic_sections): Don't emit OPD related dynamic
	tags for ELFv2.
	(ppc_build_one_stub): Use R_PPC64_IRELATIVE for ELFv2 ifunc.
	(ppc64_elf_finish_dynamic_symbol): Likewise
binutils/
	* readelf.c (get_machine_flags): Display ABI version for EM_PPC64.
gas/
	* config/tc-ppc.c: Include elf/ppc64.h.
	(ppc_abiversion): New variable.
	(md_pseudo_table): Add .abiversion.
	(ppc_elf_abiversion, ppc_elf_end): New functions.
	* config/tc-ppc.h (md_end): Define.
2013-10-30 13:37:47 +10:30

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/* PPC64 ELF support for BFD.
Copyright 2003, 2005, 2009, 2010, 2011 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)
#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)
/* 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
/* 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 that tls descriptors should be optimized. */
#define DT_PPC64_TLSOPT (DT_LOPROC + 3)
#endif /* _ELF_PPC64_H */
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