| 1 |
205 |
julius |
/* PPC ELF support for BFD.
|
| 2 |
|
|
Copyright 1995, 1996, 1998, 2000, 2001, 2002, 2003, 2005, 2007, 2008,
|
| 3 |
|
|
2009 Free Software Foundation, Inc.
|
| 4 |
|
|
|
| 5 |
|
|
By Michael Meissner, Cygnus Support, <meissner@cygnus.com>, from information
|
| 6 |
|
|
in the System V Application Binary Interface, PowerPC Processor Supplement
|
| 7 |
|
|
and the PowerPC Embedded Application Binary Interface (eabi).
|
| 8 |
|
|
|
| 9 |
|
|
This file is part of BFD, the Binary File Descriptor library.
|
| 10 |
|
|
|
| 11 |
|
|
This program is free software; you can redistribute it and/or modify
|
| 12 |
|
|
it under the terms of the GNU General Public License as published by
|
| 13 |
|
|
the Free Software Foundation; either version 2 of the License, or
|
| 14 |
|
|
(at your option) any later version.
|
| 15 |
|
|
|
| 16 |
|
|
This program is distributed in the hope that it will be useful,
|
| 17 |
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 18 |
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 19 |
|
|
GNU General Public License for more details.
|
| 20 |
|
|
|
| 21 |
|
|
You should have received a copy of the GNU General Public License
|
| 22 |
|
|
along with this program; if not, write to the Free Software
|
| 23 |
|
|
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
|
| 24 |
|
|
|
| 25 |
|
|
/* This file holds definitions specific to the PPC ELF ABI. Note
|
| 26 |
|
|
that most of this is not actually implemented by BFD. */
|
| 27 |
|
|
|
| 28 |
|
|
#ifndef _ELF_PPC_H
|
| 29 |
|
|
#define _ELF_PPC_H
|
| 30 |
|
|
|
| 31 |
|
|
#include "elf/reloc-macros.h"
|
| 32 |
|
|
|
| 33 |
|
|
/* Relocations. */
|
| 34 |
|
|
START_RELOC_NUMBERS (elf_ppc_reloc_type)
|
| 35 |
|
|
RELOC_NUMBER (R_PPC_NONE, 0)
|
| 36 |
|
|
RELOC_NUMBER (R_PPC_ADDR32, 1)
|
| 37 |
|
|
RELOC_NUMBER (R_PPC_ADDR24, 2)
|
| 38 |
|
|
RELOC_NUMBER (R_PPC_ADDR16, 3)
|
| 39 |
|
|
RELOC_NUMBER (R_PPC_ADDR16_LO, 4)
|
| 40 |
|
|
RELOC_NUMBER (R_PPC_ADDR16_HI, 5)
|
| 41 |
|
|
RELOC_NUMBER (R_PPC_ADDR16_HA, 6)
|
| 42 |
|
|
RELOC_NUMBER (R_PPC_ADDR14, 7)
|
| 43 |
|
|
RELOC_NUMBER (R_PPC_ADDR14_BRTAKEN, 8)
|
| 44 |
|
|
RELOC_NUMBER (R_PPC_ADDR14_BRNTAKEN, 9)
|
| 45 |
|
|
RELOC_NUMBER (R_PPC_REL24, 10)
|
| 46 |
|
|
RELOC_NUMBER (R_PPC_REL14, 11)
|
| 47 |
|
|
RELOC_NUMBER (R_PPC_REL14_BRTAKEN, 12)
|
| 48 |
|
|
RELOC_NUMBER (R_PPC_REL14_BRNTAKEN, 13)
|
| 49 |
|
|
RELOC_NUMBER (R_PPC_GOT16, 14)
|
| 50 |
|
|
RELOC_NUMBER (R_PPC_GOT16_LO, 15)
|
| 51 |
|
|
RELOC_NUMBER (R_PPC_GOT16_HI, 16)
|
| 52 |
|
|
RELOC_NUMBER (R_PPC_GOT16_HA, 17)
|
| 53 |
|
|
RELOC_NUMBER (R_PPC_PLTREL24, 18)
|
| 54 |
|
|
RELOC_NUMBER (R_PPC_COPY, 19)
|
| 55 |
|
|
RELOC_NUMBER (R_PPC_GLOB_DAT, 20)
|
| 56 |
|
|
RELOC_NUMBER (R_PPC_JMP_SLOT, 21)
|
| 57 |
|
|
RELOC_NUMBER (R_PPC_RELATIVE, 22)
|
| 58 |
|
|
RELOC_NUMBER (R_PPC_LOCAL24PC, 23)
|
| 59 |
|
|
RELOC_NUMBER (R_PPC_UADDR32, 24)
|
| 60 |
|
|
RELOC_NUMBER (R_PPC_UADDR16, 25)
|
| 61 |
|
|
RELOC_NUMBER (R_PPC_REL32, 26)
|
| 62 |
|
|
RELOC_NUMBER (R_PPC_PLT32, 27)
|
| 63 |
|
|
RELOC_NUMBER (R_PPC_PLTREL32, 28)
|
| 64 |
|
|
RELOC_NUMBER (R_PPC_PLT16_LO, 29)
|
| 65 |
|
|
RELOC_NUMBER (R_PPC_PLT16_HI, 30)
|
| 66 |
|
|
RELOC_NUMBER (R_PPC_PLT16_HA, 31)
|
| 67 |
|
|
RELOC_NUMBER (R_PPC_SDAREL16, 32)
|
| 68 |
|
|
RELOC_NUMBER (R_PPC_SECTOFF, 33)
|
| 69 |
|
|
RELOC_NUMBER (R_PPC_SECTOFF_LO, 34)
|
| 70 |
|
|
RELOC_NUMBER (R_PPC_SECTOFF_HI, 35)
|
| 71 |
|
|
RELOC_NUMBER (R_PPC_SECTOFF_HA, 36)
|
| 72 |
|
|
RELOC_NUMBER (R_PPC_ADDR30, 37)
|
| 73 |
|
|
|
| 74 |
|
|
#ifndef RELOC_MACROS_GEN_FUNC
|
| 75 |
|
|
/* Fake relocations for branch stubs, only used internally by ld. */
|
| 76 |
|
|
RELOC_NUMBER (R_PPC_RELAX, 48)
|
| 77 |
|
|
RELOC_NUMBER (R_PPC_RELAX_PLT, 49)
|
| 78 |
|
|
RELOC_NUMBER (R_PPC_RELAX_PLTREL24, 50)
|
| 79 |
|
|
#endif
|
| 80 |
|
|
|
| 81 |
|
|
/* Relocs added to support TLS. */
|
| 82 |
|
|
RELOC_NUMBER (R_PPC_TLS, 67)
|
| 83 |
|
|
RELOC_NUMBER (R_PPC_DTPMOD32, 68)
|
| 84 |
|
|
RELOC_NUMBER (R_PPC_TPREL16, 69)
|
| 85 |
|
|
RELOC_NUMBER (R_PPC_TPREL16_LO, 70)
|
| 86 |
|
|
RELOC_NUMBER (R_PPC_TPREL16_HI, 71)
|
| 87 |
|
|
RELOC_NUMBER (R_PPC_TPREL16_HA, 72)
|
| 88 |
|
|
RELOC_NUMBER (R_PPC_TPREL32, 73)
|
| 89 |
|
|
RELOC_NUMBER (R_PPC_DTPREL16, 74)
|
| 90 |
|
|
RELOC_NUMBER (R_PPC_DTPREL16_LO, 75)
|
| 91 |
|
|
RELOC_NUMBER (R_PPC_DTPREL16_HI, 76)
|
| 92 |
|
|
RELOC_NUMBER (R_PPC_DTPREL16_HA, 77)
|
| 93 |
|
|
RELOC_NUMBER (R_PPC_DTPREL32, 78)
|
| 94 |
|
|
RELOC_NUMBER (R_PPC_GOT_TLSGD16, 79)
|
| 95 |
|
|
RELOC_NUMBER (R_PPC_GOT_TLSGD16_LO, 80)
|
| 96 |
|
|
RELOC_NUMBER (R_PPC_GOT_TLSGD16_HI, 81)
|
| 97 |
|
|
RELOC_NUMBER (R_PPC_GOT_TLSGD16_HA, 82)
|
| 98 |
|
|
RELOC_NUMBER (R_PPC_GOT_TLSLD16, 83)
|
| 99 |
|
|
RELOC_NUMBER (R_PPC_GOT_TLSLD16_LO, 84)
|
| 100 |
|
|
RELOC_NUMBER (R_PPC_GOT_TLSLD16_HI, 85)
|
| 101 |
|
|
RELOC_NUMBER (R_PPC_GOT_TLSLD16_HA, 86)
|
| 102 |
|
|
RELOC_NUMBER (R_PPC_GOT_TPREL16, 87)
|
| 103 |
|
|
RELOC_NUMBER (R_PPC_GOT_TPREL16_LO, 88)
|
| 104 |
|
|
RELOC_NUMBER (R_PPC_GOT_TPREL16_HI, 89)
|
| 105 |
|
|
RELOC_NUMBER (R_PPC_GOT_TPREL16_HA, 90)
|
| 106 |
|
|
RELOC_NUMBER (R_PPC_GOT_DTPREL16, 91)
|
| 107 |
|
|
RELOC_NUMBER (R_PPC_GOT_DTPREL16_LO, 92)
|
| 108 |
|
|
RELOC_NUMBER (R_PPC_GOT_DTPREL16_HI, 93)
|
| 109 |
|
|
RELOC_NUMBER (R_PPC_GOT_DTPREL16_HA, 94)
|
| 110 |
|
|
RELOC_NUMBER (R_PPC_TLSGD, 95)
|
| 111 |
|
|
RELOC_NUMBER (R_PPC_TLSLD, 96)
|
| 112 |
|
|
|
| 113 |
|
|
/* The remaining relocs are from the Embedded ELF ABI, and are not
|
| 114 |
|
|
in the SVR4 ELF ABI. */
|
| 115 |
|
|
RELOC_NUMBER (R_PPC_EMB_NADDR32, 101)
|
| 116 |
|
|
RELOC_NUMBER (R_PPC_EMB_NADDR16, 102)
|
| 117 |
|
|
RELOC_NUMBER (R_PPC_EMB_NADDR16_LO, 103)
|
| 118 |
|
|
RELOC_NUMBER (R_PPC_EMB_NADDR16_HI, 104)
|
| 119 |
|
|
RELOC_NUMBER (R_PPC_EMB_NADDR16_HA, 105)
|
| 120 |
|
|
RELOC_NUMBER (R_PPC_EMB_SDAI16, 106)
|
| 121 |
|
|
RELOC_NUMBER (R_PPC_EMB_SDA2I16, 107)
|
| 122 |
|
|
RELOC_NUMBER (R_PPC_EMB_SDA2REL, 108)
|
| 123 |
|
|
RELOC_NUMBER (R_PPC_EMB_SDA21, 109)
|
| 124 |
|
|
RELOC_NUMBER (R_PPC_EMB_MRKREF, 110)
|
| 125 |
|
|
RELOC_NUMBER (R_PPC_EMB_RELSEC16, 111)
|
| 126 |
|
|
RELOC_NUMBER (R_PPC_EMB_RELST_LO, 112)
|
| 127 |
|
|
RELOC_NUMBER (R_PPC_EMB_RELST_HI, 113)
|
| 128 |
|
|
RELOC_NUMBER (R_PPC_EMB_RELST_HA, 114)
|
| 129 |
|
|
RELOC_NUMBER (R_PPC_EMB_BIT_FLD, 115)
|
| 130 |
|
|
RELOC_NUMBER (R_PPC_EMB_RELSDA, 116)
|
| 131 |
|
|
|
| 132 |
|
|
/* Support STT_GNU_IFUNC plt calls. */
|
| 133 |
|
|
RELOC_NUMBER (R_PPC_IRELATIVE, 248)
|
| 134 |
|
|
|
| 135 |
|
|
/* These are GNU extensions used in PIC code sequences. */
|
| 136 |
|
|
RELOC_NUMBER (R_PPC_REL16, 249)
|
| 137 |
|
|
RELOC_NUMBER (R_PPC_REL16_LO, 250)
|
| 138 |
|
|
RELOC_NUMBER (R_PPC_REL16_HI, 251)
|
| 139 |
|
|
RELOC_NUMBER (R_PPC_REL16_HA, 252)
|
| 140 |
|
|
|
| 141 |
|
|
/* These are GNU extensions to enable C++ vtable garbage collection. */
|
| 142 |
|
|
RELOC_NUMBER (R_PPC_GNU_VTINHERIT, 253)
|
| 143 |
|
|
RELOC_NUMBER (R_PPC_GNU_VTENTRY, 254)
|
| 144 |
|
|
|
| 145 |
|
|
/* This is a phony reloc to handle any old fashioned TOC16 references
|
| 146 |
|
|
that may still be in object files. */
|
| 147 |
|
|
RELOC_NUMBER (R_PPC_TOC16, 255)
|
| 148 |
|
|
|
| 149 |
|
|
END_RELOC_NUMBERS (R_PPC_max)
|
| 150 |
|
|
|
| 151 |
|
|
#define IS_PPC_TLS_RELOC(R) \
|
| 152 |
|
|
((R) >= R_PPC_TLS && (R) <= R_PPC_GOT_DTPREL16_HA)
|
| 153 |
|
|
|
| 154 |
|
|
/* Specify the value of _GLOBAL_OFFSET_TABLE_. */
|
| 155 |
|
|
#define DT_PPC_GOT (DT_LOPROC)
|
| 156 |
|
|
|
| 157 |
|
|
/* Specify that tls descriptors should be optimized. */
|
| 158 |
|
|
#define DT_PPC_TLSOPT (DT_LOPROC + 1)
|
| 159 |
|
|
|
| 160 |
|
|
/* Processor specific flags for the ELF header e_flags field. */
|
| 161 |
|
|
|
| 162 |
|
|
#define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag. */
|
| 163 |
|
|
|
| 164 |
|
|
#define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag. */
|
| 165 |
|
|
#define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib flag. */
|
| 166 |
|
|
|
| 167 |
|
|
/* Processor specific section headers, sh_type field. */
|
| 168 |
|
|
|
| 169 |
|
|
#define SHT_ORDERED SHT_HIPROC /* Link editor is to sort the \
|
| 170 |
|
|
entries in this section \
|
| 171 |
|
|
based on the address \
|
| 172 |
|
|
specified in the associated \
|
| 173 |
|
|
symbol table entry. */
|
| 174 |
|
|
|
| 175 |
|
|
/* Processor specific section flags, sh_flags field. */
|
| 176 |
|
|
|
| 177 |
|
|
#define SHF_EXCLUDE 0x80000000 /* Link editor is to exclude \
|
| 178 |
|
|
this section from executable \
|
| 179 |
|
|
and shared objects that it \
|
| 180 |
|
|
builds when those objects \
|
| 181 |
|
|
are not to be furhter \
|
| 182 |
|
|
relocated. */
|
| 183 |
|
|
|
| 184 |
|
|
/* Object attribute tags. */
|
| 185 |
|
|
enum
|
| 186 |
|
|
{
|
| 187 |
|
|
/* 0-3 are generic. */
|
| 188 |
|
|
Tag_GNU_Power_ABI_FP = 4, /* Value 1 for hard-float, 2 for
|
| 189 |
|
|
soft-float, 3 for single=precision
|
| 190 |
|
|
hard-float; 0 for not tagged or not
|
| 191 |
|
|
using any ABIs affected by the
|
| 192 |
|
|
differences. */
|
| 193 |
|
|
|
| 194 |
|
|
/* Value 1 for general purpose registers only, 2 for AltiVec
|
| 195 |
|
|
registers, 3 for SPE registers; 0 for not tagged or not using any
|
| 196 |
|
|
ABIs affected by the differences. */
|
| 197 |
|
|
Tag_GNU_Power_ABI_Vector = 8,
|
| 198 |
|
|
|
| 199 |
|
|
/* Value 1 for ABIs using r3/r4 for returning structures <= 8 bytes,
|
| 200 |
|
|
2 for ABIs using memory; 0 for not tagged or not using any ABIs
|
| 201 |
|
|
affected by the differences. */
|
| 202 |
|
|
Tag_GNU_Power_ABI_Struct_Return = 12
|
| 203 |
|
|
};
|
| 204 |
|
|
|
| 205 |
|
|
#endif /* _ELF_PPC_H */
|
