319 lines
9.3 KiB
C++
319 lines
9.3 KiB
C++
// powerpc.h -- ELF definitions specific to EM_PPC and EM_PPC64 -*- C++ -*-
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// Copyright (C) 2008-2019 Free Software Foundation, Inc.
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// Written by David S. Miller <davem@davemloft.net>.
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// This file is part of elfcpp.
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public License
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// as published by the Free Software Foundation; either version 2, or
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// (at your option) any later version.
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// In addition to the permissions in the GNU Library General Public
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// License, the Free Software Foundation gives you unlimited
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// permission to link the compiled version of this file into
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// combinations with other programs, and to distribute those
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// combinations without any restriction coming from the use of this
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// file. (The Library Public License restrictions do apply in other
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// respects; for example, they cover modification of the file, and
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/// distribution when not linked into a combined executable.)
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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// You should have received a copy of the GNU Library General Public
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// License along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
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// 02110-1301, USA.
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#ifndef ELFCPP_POWERPC_H
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#define ELFCPP_POWERPC_H
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namespace elfcpp
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{
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// The relocation numbers for 32-bit and 64-bit powerpc are nearly
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// identical. Therefore I've adopted the convention of using
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// R_POWERPC_foo for values which are the same in R_PPC_* and R_PPC64_*.
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// For relocations which are specific to the word size I will use
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// R_PPC_foo or R_PPC64_foo.
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enum
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{
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R_POWERPC_NONE = 0,
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R_POWERPC_ADDR32 = 1,
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R_POWERPC_ADDR24 = 2,
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R_POWERPC_ADDR16 = 3,
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R_POWERPC_ADDR16_LO = 4,
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R_POWERPC_ADDR16_HI = 5,
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R_POWERPC_ADDR16_HA = 6,
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R_POWERPC_ADDR14 = 7,
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R_POWERPC_ADDR14_BRTAKEN = 8,
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R_POWERPC_ADDR14_BRNTAKEN = 9,
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R_POWERPC_REL24 = 10,
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R_POWERPC_REL14 = 11,
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R_POWERPC_REL14_BRTAKEN = 12,
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R_POWERPC_REL14_BRNTAKEN = 13,
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R_POWERPC_GOT16 = 14,
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R_POWERPC_GOT16_LO = 15,
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R_POWERPC_GOT16_HI = 16,
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R_POWERPC_GOT16_HA = 17,
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R_PPC_PLTREL24 = 18,
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R_POWERPC_COPY = 19,
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R_POWERPC_GLOB_DAT = 20,
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R_POWERPC_JMP_SLOT = 21,
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R_POWERPC_RELATIVE = 22,
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R_PPC_LOCAL24PC = 23,
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R_POWERPC_UADDR32 = 24,
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R_POWERPC_UADDR16 = 25,
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R_POWERPC_REL32 = 26,
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R_POWERPC_PLT32 = 27,
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R_POWERPC_PLTREL32 = 28,
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R_POWERPC_PLT16_LO = 29,
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R_POWERPC_PLT16_HI = 30,
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R_POWERPC_PLT16_HA = 31,
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R_PPC_SDAREL16 = 32,
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R_POWERPC_SECTOFF = 33,
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R_POWERPC_SECTOFF_LO = 34,
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R_POWERPC_SECTOFF_HI = 35,
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R_POWERPC_SECTOFF_HA = 36,
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R_POWERPC_ADDR30 = 37,
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R_PPC64_ADDR64 = 38,
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R_PPC64_ADDR16_HIGHER = 39,
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R_PPC64_ADDR16_HIGHERA = 40,
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R_PPC64_ADDR16_HIGHEST = 41,
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R_PPC64_ADDR16_HIGHESTA = 42,
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R_PPC64_UADDR64 = 43,
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R_PPC64_REL64 = 44,
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R_PPC64_PLT64 = 45,
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R_PPC64_PLTREL64 = 46,
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R_PPC64_TOC16 = 47,
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R_PPC64_TOC16_LO = 48,
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R_PPC64_TOC16_HI = 49,
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R_PPC64_TOC16_HA = 50,
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R_PPC64_TOC = 51,
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R_PPC64_PLTGOT16 = 52,
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R_PPC64_PLTGOT16_LO = 53,
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R_PPC64_PLTGOT16_HI = 54,
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R_PPC64_PLTGOT16_HA = 55,
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R_PPC64_ADDR16_DS = 56,
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R_PPC64_ADDR16_LO_DS = 57,
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R_PPC64_GOT16_DS = 58,
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R_PPC64_GOT16_LO_DS = 59,
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R_PPC64_PLT16_LO_DS = 60,
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R_PPC64_SECTOFF_DS = 61,
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R_PPC64_SECTOFF_LO_DS = 62,
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R_PPC64_TOC16_DS = 63,
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R_PPC64_TOC16_LO_DS = 64,
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R_PPC64_PLTGOT16_DS = 65,
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R_PPC64_PLTGOT16_LO_DS = 66,
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R_POWERPC_TLS = 67,
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R_POWERPC_DTPMOD = 68,
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R_POWERPC_TPREL16 = 69,
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R_POWERPC_TPREL16_LO = 70,
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R_POWERPC_TPREL16_HI = 71,
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R_POWERPC_TPREL16_HA = 72,
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R_POWERPC_TPREL = 73,
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R_POWERPC_DTPREL16 = 74,
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R_POWERPC_DTPREL16_LO = 75,
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R_POWERPC_DTPREL16_HI = 76,
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R_POWERPC_DTPREL16_HA = 77,
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R_POWERPC_DTPREL = 78,
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R_POWERPC_GOT_TLSGD16 = 79,
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R_POWERPC_GOT_TLSGD16_LO = 80,
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R_POWERPC_GOT_TLSGD16_HI = 81,
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R_POWERPC_GOT_TLSGD16_HA = 82,
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R_POWERPC_GOT_TLSLD16 = 83,
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R_POWERPC_GOT_TLSLD16_LO = 84,
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R_POWERPC_GOT_TLSLD16_HI = 85,
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R_POWERPC_GOT_TLSLD16_HA = 86,
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R_POWERPC_GOT_TPREL16 = 87,
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R_POWERPC_GOT_TPREL16_LO = 88,
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R_POWERPC_GOT_TPREL16_HI = 89,
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R_POWERPC_GOT_TPREL16_HA = 90,
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R_POWERPC_GOT_DTPREL16 = 91,
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R_POWERPC_GOT_DTPREL16_LO = 92,
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R_POWERPC_GOT_DTPREL16_HI = 93,
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R_POWERPC_GOT_DTPREL16_HA = 94,
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R_PPC_TLSGD = 95,
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R_PPC64_TPREL16_DS = 95,
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R_PPC_TLSLD = 96,
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R_PPC64_TPREL16_LO_DS = 96,
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R_PPC64_TPREL16_HIGHER = 97,
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R_PPC64_TPREL16_HIGHERA = 98,
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R_PPC64_TPREL16_HIGHEST = 99,
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R_PPC64_TPREL16_HIGHESTA = 100,
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R_PPC_EMB_NADDR32 = 101,
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R_PPC64_DTPREL16_DS = 101,
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R_PPC_EMB_NADDR16 = 102,
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R_PPC64_DTPREL16_LO_DS = 102,
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R_PPC_EMB_NADDR16_LO = 103,
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R_PPC64_DTPREL16_HIGHER = 103,
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R_PPC_EMB_NADDR16_HI = 104,
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R_PPC64_DTPREL16_HIGHERA = 104,
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R_PPC_EMB_NADDR16_HA = 105,
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R_PPC64_DTPREL16_HIGHEST = 105,
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R_PPC_EMB_SDAI16 = 106,
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R_PPC64_DTPREL16_HIGHESTA = 106,
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R_PPC_EMB_SDA2I16 = 107,
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R_PPC64_TLSGD = 107,
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R_PPC_EMB_SDA2REL = 108,
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R_PPC64_TLSLD = 108,
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R_PPC_EMB_SDA21 = 109,
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R_PPC64_TOCSAVE = 109,
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R_PPC_EMB_MRKREF = 110,
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R_PPC64_ADDR16_HIGH = 110,
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R_PPC_EMB_RELSEC16 = 111,
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R_PPC64_ADDR16_HIGHA = 111,
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R_PPC_EMB_RELST_LO = 112,
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R_PPC64_TPREL16_HIGH = 112,
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R_PPC_EMB_RELST_HI = 113,
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R_PPC64_TPREL16_HIGHA = 113,
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R_PPC_EMB_RELST_HA = 114,
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R_PPC64_DTPREL16_HIGH = 114,
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R_PPC_EMB_BIT_FLD = 115,
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R_PPC64_DTPREL16_HIGHA = 115,
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R_PPC_EMB_RELSDA = 116,
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R_PPC64_REL24_NOTOC = 116,
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R_PPC64_ADDR64_LOCAL = 117,
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R_PPC64_ENTRY = 118,
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R_POWERPC_PLTSEQ = 119,
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R_POWERPC_PLTCALL = 120,
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R_PPC_VLE_REL8 = 216,
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R_PPC_VLE_REL15 = 217,
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R_PPC_VLE_REL24 = 218,
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R_PPC_VLE_LO16A = 219,
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R_PPC_VLE_LO16D = 220,
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R_PPC_VLE_HI16A = 221,
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R_PPC_VLE_HI16D = 222,
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R_PPC_VLE_HA16A = 223,
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R_PPC_VLE_HA16D = 224,
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R_PPC_VLE_SDA21 = 225,
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R_PPC_VLE_SDA21_LO = 226,
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R_PPC_VLE_SDAREL_LO16A = 227,
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R_PPC_VLE_SDAREL_LO16D = 228,
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R_PPC_VLE_SDAREL_HI16A = 229,
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R_PPC_VLE_SDAREL_HI16D = 230,
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R_PPC_VLE_SDAREL_HA16A = 231,
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R_PPC_VLE_SDAREL_HA16D = 232,
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R_POWERPC_REL16DX_HA = 246,
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R_PPC64_JMP_IREL = 247,
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R_POWERPC_IRELATIVE = 248,
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R_POWERPC_REL16 = 249,
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R_POWERPC_REL16_LO = 250,
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R_POWERPC_REL16_HI = 251,
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R_POWERPC_REL16_HA = 252,
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R_POWERPC_GNU_VTINHERIT = 253,
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R_POWERPC_GNU_VTENTRY = 254,
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R_PPC_TOC16 = 255,
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};
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// e_flags values defined for powerpc
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enum
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{
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EF_PPC_EMB = 0x80000000, // PowerPC embedded flag.
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EF_PPC_RELOCATABLE = 0x00010000, // PowerPC -mrelocatable flag. */
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EF_PPC_RELOCATABLE_LIB = 0x00008000, // PowerPC -mrelocatable-lib flag. */
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};
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// e_flags values defined for powerpc64
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enum
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{
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// ABI version
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// 1 for original function descriptor using ABI,
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// 2 for revised ABI without function descriptors,
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// 0 for unspecified or not using any features affected by the differences.
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EF_PPC64_ABI = 3
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};
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// Object attribute tags. 0-3 are generic.
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enum
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{
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// FP ABI, low 2 bits:
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// 1 for double precision hard-float,
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// 2 for soft-float,
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// 3 for single precision hard-float.
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// 0 for not tagged or not using any ABIs affected by the differences.
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// Next 2 bits:
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// 1 for ibm long double
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// 2 for 64-bit long double
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// 3 for IEEE long double.
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// 0 for not tagged or not using any ABIs affected by the differences.
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Tag_GNU_Power_ABI_FP = 4,
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// Value 1 for general purpose registers only, 2 for AltiVec
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// registers, 3 for SPE registers; 0 for not tagged or not using any
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// ABIs affected by the differences.
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Tag_GNU_Power_ABI_Vector = 8,
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// Value 1 for ABIs using r3/r4 for returning structures <= 8 bytes,
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// 2 for ABIs using memory; 0 for not tagged or not using any ABIs
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// affected by the differences.
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Tag_GNU_Power_ABI_Struct_Return = 12
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};
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// DT_PPC_OPT bits
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enum
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{
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PPC_OPT_TLS = 1
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};
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// DT_PPC64_OPT bits
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enum
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{
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PPC64_OPT_TLS = 1,
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PPC64_OPT_MULTI_TOC = 2,
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PPC64_OPT_LOCALENTRY = 4
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};
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enum
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{
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// The ELFv2 ABI uses three bits in the symbol st_other field of a
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// function definition to specify the number of instructions between a
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// function's global entry point and local entry point.
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// The global entry point is used when it is necessary to set up the
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// toc pointer (r2) for the function. Callers must enter the global
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// entry point with r12 set to the global entry point address. On
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// return from the function, r2 may have a different value to that
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// which it had on entry.
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// The local entry point is used when r2 is known to already be valid
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// for the function. There is no requirement on r12 when using the
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// local entry point, and on return r2 will contain the same value as
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// at entry.
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// A value of zero in these bits means that the function has a single
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// entry point with no requirement on r12 or r2, and that on return r2
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// will contain the same value as at entry.
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// Values of one and seven are reserved.
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STO_PPC64_LOCAL_BIT = 5,
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STO_PPC64_LOCAL_MASK = 0xE0
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};
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// 3 bit other field to bytes.
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static inline unsigned int
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ppc64_decode_local_entry(unsigned int other)
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{
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return ((1 << other) >> 2) << 2;
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}
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// bytes to field value.
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static inline unsigned int
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ppc64_encode_local_entry(unsigned int val)
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{
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return (val >= 4 * 4
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? (val >= 8 * 4
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? (val >= 16 * 4 ? 6 : 5)
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: 4)
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: (val >= 2 * 4
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? 3
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: (val >= 1 * 4 ? 2 : 0)));
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}
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} // End namespace elfcpp.
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#endif // !defined(ELFCPP_POWERPC_H)
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