| /* PPC ELF support for BFD. |
| Copyright 1995, 1996, 1998, 2000, 2001, 2002, 2003, 2005, 2007, 2008 |
| Free Software Foundation, Inc. |
| |
| By Michael Meissner, Cygnus Support, <meissner@cygnus.com>, from information |
| in the System V Application Binary Interface, PowerPC Processor Supplement |
| and the PowerPC Embedded Application Binary Interface (eabi). |
| |
| 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 2 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. */ |
| |
| /* This file holds definitions specific to the PPC ELF ABI. Note |
| that most of this is not actually implemented by BFD. */ |
| |
| #ifndef _ELF_PPC_H |
| #define _ELF_PPC_H |
| |
| #include "elf/reloc-macros.h" |
| |
| /* Relocations. */ |
| START_RELOC_NUMBERS (elf_ppc_reloc_type) |
| RELOC_NUMBER (R_PPC_NONE, 0) |
| RELOC_NUMBER (R_PPC_ADDR32, 1) |
| RELOC_NUMBER (R_PPC_ADDR24, 2) |
| RELOC_NUMBER (R_PPC_ADDR16, 3) |
| RELOC_NUMBER (R_PPC_ADDR16_LO, 4) |
| RELOC_NUMBER (R_PPC_ADDR16_HI, 5) |
| RELOC_NUMBER (R_PPC_ADDR16_HA, 6) |
| RELOC_NUMBER (R_PPC_ADDR14, 7) |
| RELOC_NUMBER (R_PPC_ADDR14_BRTAKEN, 8) |
| RELOC_NUMBER (R_PPC_ADDR14_BRNTAKEN, 9) |
| RELOC_NUMBER (R_PPC_REL24, 10) |
| RELOC_NUMBER (R_PPC_REL14, 11) |
| RELOC_NUMBER (R_PPC_REL14_BRTAKEN, 12) |
| RELOC_NUMBER (R_PPC_REL14_BRNTAKEN, 13) |
| RELOC_NUMBER (R_PPC_GOT16, 14) |
| RELOC_NUMBER (R_PPC_GOT16_LO, 15) |
| RELOC_NUMBER (R_PPC_GOT16_HI, 16) |
| RELOC_NUMBER (R_PPC_GOT16_HA, 17) |
| RELOC_NUMBER (R_PPC_PLTREL24, 18) |
| RELOC_NUMBER (R_PPC_COPY, 19) |
| RELOC_NUMBER (R_PPC_GLOB_DAT, 20) |
| RELOC_NUMBER (R_PPC_JMP_SLOT, 21) |
| RELOC_NUMBER (R_PPC_RELATIVE, 22) |
| RELOC_NUMBER (R_PPC_LOCAL24PC, 23) |
| RELOC_NUMBER (R_PPC_UADDR32, 24) |
| RELOC_NUMBER (R_PPC_UADDR16, 25) |
| RELOC_NUMBER (R_PPC_REL32, 26) |
| RELOC_NUMBER (R_PPC_PLT32, 27) |
| RELOC_NUMBER (R_PPC_PLTREL32, 28) |
| RELOC_NUMBER (R_PPC_PLT16_LO, 29) |
| RELOC_NUMBER (R_PPC_PLT16_HI, 30) |
| RELOC_NUMBER (R_PPC_PLT16_HA, 31) |
| RELOC_NUMBER (R_PPC_SDAREL16, 32) |
| RELOC_NUMBER (R_PPC_SECTOFF, 33) |
| RELOC_NUMBER (R_PPC_SECTOFF_LO, 34) |
| RELOC_NUMBER (R_PPC_SECTOFF_HI, 35) |
| RELOC_NUMBER (R_PPC_SECTOFF_HA, 36) |
| RELOC_NUMBER (R_PPC_ADDR30, 37) |
| |
| /* Relocs added to support TLS. */ |
| RELOC_NUMBER (R_PPC_TLS, 67) |
| RELOC_NUMBER (R_PPC_DTPMOD32, 68) |
| RELOC_NUMBER (R_PPC_TPREL16, 69) |
| RELOC_NUMBER (R_PPC_TPREL16_LO, 70) |
| RELOC_NUMBER (R_PPC_TPREL16_HI, 71) |
| RELOC_NUMBER (R_PPC_TPREL16_HA, 72) |
| RELOC_NUMBER (R_PPC_TPREL32, 73) |
| RELOC_NUMBER (R_PPC_DTPREL16, 74) |
| RELOC_NUMBER (R_PPC_DTPREL16_LO, 75) |
| RELOC_NUMBER (R_PPC_DTPREL16_HI, 76) |
| RELOC_NUMBER (R_PPC_DTPREL16_HA, 77) |
| RELOC_NUMBER (R_PPC_DTPREL32, 78) |
| RELOC_NUMBER (R_PPC_GOT_TLSGD16, 79) |
| RELOC_NUMBER (R_PPC_GOT_TLSGD16_LO, 80) |
| RELOC_NUMBER (R_PPC_GOT_TLSGD16_HI, 81) |
| RELOC_NUMBER (R_PPC_GOT_TLSGD16_HA, 82) |
| RELOC_NUMBER (R_PPC_GOT_TLSLD16, 83) |
| RELOC_NUMBER (R_PPC_GOT_TLSLD16_LO, 84) |
| RELOC_NUMBER (R_PPC_GOT_TLSLD16_HI, 85) |
| RELOC_NUMBER (R_PPC_GOT_TLSLD16_HA, 86) |
| RELOC_NUMBER (R_PPC_GOT_TPREL16, 87) |
| RELOC_NUMBER (R_PPC_GOT_TPREL16_LO, 88) |
| RELOC_NUMBER (R_PPC_GOT_TPREL16_HI, 89) |
| RELOC_NUMBER (R_PPC_GOT_TPREL16_HA, 90) |
| RELOC_NUMBER (R_PPC_GOT_DTPREL16, 91) |
| RELOC_NUMBER (R_PPC_GOT_DTPREL16_LO, 92) |
| RELOC_NUMBER (R_PPC_GOT_DTPREL16_HI, 93) |
| RELOC_NUMBER (R_PPC_GOT_DTPREL16_HA, 94) |
| |
| /* The remaining relocs are from the Embedded ELF ABI, and are not |
| in the SVR4 ELF ABI. */ |
| RELOC_NUMBER (R_PPC_EMB_NADDR32, 101) |
| RELOC_NUMBER (R_PPC_EMB_NADDR16, 102) |
| RELOC_NUMBER (R_PPC_EMB_NADDR16_LO, 103) |
| RELOC_NUMBER (R_PPC_EMB_NADDR16_HI, 104) |
| RELOC_NUMBER (R_PPC_EMB_NADDR16_HA, 105) |
| RELOC_NUMBER (R_PPC_EMB_SDAI16, 106) |
| RELOC_NUMBER (R_PPC_EMB_SDA2I16, 107) |
| RELOC_NUMBER (R_PPC_EMB_SDA2REL, 108) |
| RELOC_NUMBER (R_PPC_EMB_SDA21, 109) |
| RELOC_NUMBER (R_PPC_EMB_MRKREF, 110) |
| RELOC_NUMBER (R_PPC_EMB_RELSEC16, 111) |
| RELOC_NUMBER (R_PPC_EMB_RELST_LO, 112) |
| RELOC_NUMBER (R_PPC_EMB_RELST_HI, 113) |
| RELOC_NUMBER (R_PPC_EMB_RELST_HA, 114) |
| RELOC_NUMBER (R_PPC_EMB_BIT_FLD, 115) |
| RELOC_NUMBER (R_PPC_EMB_RELSDA, 116) |
| |
| /* Fake relocations for branch stubs, only used internally by ld. */ |
| #define R_PPC_RELAX32 245 |
| #define R_PPC_RELAX32PC 246 |
| #define R_PPC_RELAX32_PLT 247 |
| #define R_PPC_RELAX32PC_PLT 248 |
| |
| /* These are GNU extensions used in PIC code sequences. */ |
| RELOC_NUMBER (R_PPC_REL16, 249) |
| RELOC_NUMBER (R_PPC_REL16_LO, 250) |
| RELOC_NUMBER (R_PPC_REL16_HI, 251) |
| RELOC_NUMBER (R_PPC_REL16_HA, 252) |
| |
| /* These are GNU extensions to enable C++ vtable garbage collection. */ |
| RELOC_NUMBER (R_PPC_GNU_VTINHERIT, 253) |
| RELOC_NUMBER (R_PPC_GNU_VTENTRY, 254) |
| |
| /* This is a phony reloc to handle any old fashioned TOC16 references |
| that may still be in object files. */ |
| RELOC_NUMBER (R_PPC_TOC16, 255) |
| |
| END_RELOC_NUMBERS (R_PPC_max) |
| |
| #define IS_PPC_TLS_RELOC(R) \ |
| ((R) >= R_PPC_TLS && (R) <= R_PPC_GOT_DTPREL16_HA) |
| |
| /* Specify the value of _GLOBAL_OFFSET_TABLE_. */ |
| #define DT_PPC_GOT DT_LOPROC |
| |
| /* Processor specific flags for the ELF header e_flags field. */ |
| |
| #define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag. */ |
| |
| #define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag. */ |
| #define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib flag. */ |
| |
| /* Processor specific section headers, sh_type field. */ |
| |
| #define SHT_ORDERED SHT_HIPROC /* Link editor is to sort the \ |
| entries in this section \ |
| based on the address \ |
| specified in the associated \ |
| symbol table entry. */ |
| |
| /* Processor specific section flags, sh_flags field. */ |
| |
| #define SHF_EXCLUDE 0x80000000 /* Link editor is to exclude \ |
| this section from executable \ |
| and shared objects that it \ |
| builds when those objects \ |
| are not to be furhter \ |
| relocated. */ |
| |
| /* Object attribute tags. */ |
| enum |
| { |
| /* 0-3 are generic. */ |
| Tag_GNU_Power_ABI_FP = 4, /* Value 1 for hard-float, 2 for |
| soft-float, 3 for single=precision |
| hard-float; 0 for not tagged or not |
| using any ABIs affected by the |
| differences. */ |
| |
| /* Value 1 for general purpose registers only, 2 for AltiVec |
| registers, 3 for SPE registers; 0 for not tagged or not using any |
| ABIs affected by the differences. */ |
| Tag_GNU_Power_ABI_Vector = 8, |
| |
| /* Value 1 for ABIs using r3/r4 for returning structures <= 8 bytes, |
| 2 for ABIs using memory; 0 for not tagged or not using any ABIs |
| affected by the differences. */ |
| Tag_GNU_Power_ABI_Struct_Return = 12 |
| }; |
| |
| #endif /* _ELF_PPC_H */ |
