// powerpc.h -- ELF definitions specific to EM_PPC and EM_PPC64  -*- C++ -*-

// Copyright (C) 2008-2024 Free Software Foundation, Inc.
// Written by David S. Miller <[email protected]>.

// This file is part of elfcpp.

// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public License
// as published by the Free Software Foundation; either version 2, or
// (at your option) any later version.

// In addition to the permissions in the GNU Library General Public
// License, the Free Software Foundation gives you unlimited
// permission to link the compiled version of this file into
// combinations with other programs, and to distribute those
// combinations without any restriction coming from the use of this
// file.  (The Library Public License restrictions do apply in other
// respects; for example, they cover modification of the file, and
/// distribution when not linked into a combined executable.)

// 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
// Library General Public License for more details.

// You should have received a copy of the GNU Library 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 ELFCPP_POWERPC_H
#define ELFCPP_POWERPC_H

namespace elfcpp
{

// The relocation numbers for 32-bit and 64-bit powerpc are nearly
// identical.  Therefore I've adopted the convention of using
// R_POWERPC_foo for values which are the same in R_PPC_* and R_PPC64_*.
// For relocations which are specific to the word size I will use
// R_PPC_foo or R_PPC64_foo.
enum
{
 R_POWERPC_NONE = 0,
 R_POWERPC_ADDR32 = 1,
 R_POWERPC_ADDR24 = 2,
 R_POWERPC_ADDR16 = 3,
 R_POWERPC_ADDR16_LO = 4,
 R_POWERPC_ADDR16_HI = 5,
 R_POWERPC_ADDR16_HA = 6,
 R_POWERPC_ADDR14 = 7,
 R_POWERPC_ADDR14_BRTAKEN = 8,
 R_POWERPC_ADDR14_BRNTAKEN = 9,
 R_POWERPC_REL24 = 10,
 R_POWERPC_REL14 = 11,
 R_POWERPC_REL14_BRTAKEN = 12,
 R_POWERPC_REL14_BRNTAKEN = 13,
 R_POWERPC_GOT16 = 14,
 R_POWERPC_GOT16_LO = 15,
 R_POWERPC_GOT16_HI = 16,
 R_POWERPC_GOT16_HA = 17,
 R_PPC_PLTREL24 = 18,
 R_POWERPC_COPY = 19,
 R_POWERPC_GLOB_DAT = 20,
 R_POWERPC_JMP_SLOT = 21,
 R_POWERPC_RELATIVE = 22,
 R_PPC_LOCAL24PC = 23,
 R_POWERPC_UADDR32 = 24,
 R_POWERPC_UADDR16 = 25,
 R_POWERPC_REL32 = 26,
 R_POWERPC_PLT32 = 27,
 R_POWERPC_PLTREL32 = 28,
 R_POWERPC_PLT16_LO = 29,
 R_POWERPC_PLT16_HI = 30,
 R_POWERPC_PLT16_HA = 31,
 R_PPC_SDAREL16 = 32,
 R_POWERPC_SECTOFF = 33,
 R_POWERPC_SECTOFF_LO = 34,
 R_POWERPC_SECTOFF_HI = 35,
 R_POWERPC_SECTOFF_HA = 36,
 R_POWERPC_ADDR30 = 37,
 R_PPC64_ADDR64 = 38,
 R_PPC64_ADDR16_HIGHER = 39,
 R_PPC64_ADDR16_HIGHERA = 40,
 R_PPC64_ADDR16_HIGHEST = 41,
 R_PPC64_ADDR16_HIGHESTA = 42,
 R_PPC64_UADDR64 = 43,
 R_PPC64_REL64 = 44,
 R_PPC64_PLT64 = 45,
 R_PPC64_PLTREL64 = 46,
 R_PPC64_TOC16 = 47,
 R_PPC64_TOC16_LO = 48,
 R_PPC64_TOC16_HI = 49,
 R_PPC64_TOC16_HA = 50,
 R_PPC64_TOC = 51,
 R_PPC64_PLTGOT16 = 52,
 R_PPC64_PLTGOT16_LO = 53,
 R_PPC64_PLTGOT16_HI = 54,
 R_PPC64_PLTGOT16_HA = 55,
 R_PPC64_ADDR16_DS = 56,
 R_PPC64_ADDR16_LO_DS = 57,
 R_PPC64_GOT16_DS = 58,
 R_PPC64_GOT16_LO_DS = 59,
 R_PPC64_PLT16_LO_DS = 60,
 R_PPC64_SECTOFF_DS = 61,
 R_PPC64_SECTOFF_LO_DS = 62,
 R_PPC64_TOC16_DS = 63,
 R_PPC64_TOC16_LO_DS = 64,
 R_PPC64_PLTGOT16_DS = 65,
 R_PPC64_PLTGOT16_LO_DS = 66,
 R_POWERPC_TLS = 67,
 R_POWERPC_DTPMOD = 68,
 R_POWERPC_TPREL16 = 69,
 R_POWERPC_TPREL16_LO = 70,
 R_POWERPC_TPREL16_HI = 71,
 R_POWERPC_TPREL16_HA = 72,
 R_POWERPC_TPREL = 73,
 R_POWERPC_DTPREL16 = 74,
 R_POWERPC_DTPREL16_LO = 75,
 R_POWERPC_DTPREL16_HI = 76,
 R_POWERPC_DTPREL16_HA = 77,
 R_POWERPC_DTPREL = 78,
 R_POWERPC_GOT_TLSGD16 = 79,
 R_POWERPC_GOT_TLSGD16_LO = 80,
 R_POWERPC_GOT_TLSGD16_HI = 81,
 R_POWERPC_GOT_TLSGD16_HA = 82,
 R_POWERPC_GOT_TLSLD16 = 83,
 R_POWERPC_GOT_TLSLD16_LO = 84,
 R_POWERPC_GOT_TLSLD16_HI = 85,
 R_POWERPC_GOT_TLSLD16_HA = 86,
 R_POWERPC_GOT_TPREL16 = 87,
 R_POWERPC_GOT_TPREL16_LO = 88,
 R_POWERPC_GOT_TPREL16_HI = 89,
 R_POWERPC_GOT_TPREL16_HA = 90,
 R_POWERPC_GOT_DTPREL16 = 91,
 R_POWERPC_GOT_DTPREL16_LO = 92,
 R_POWERPC_GOT_DTPREL16_HI = 93,
 R_POWERPC_GOT_DTPREL16_HA = 94,
 R_PPC_TLSGD = 95,
 R_PPC64_TPREL16_DS = 95,
 R_PPC_TLSLD = 96,
 R_PPC64_TPREL16_LO_DS = 96,
 R_PPC64_TPREL16_HIGHER = 97,
 R_PPC64_TPREL16_HIGHERA = 98,
 R_PPC64_TPREL16_HIGHEST = 99,
 R_PPC64_TPREL16_HIGHESTA = 100,
 R_PPC_EMB_NADDR32 = 101,
 R_PPC64_DTPREL16_DS = 101,
 R_PPC_EMB_NADDR16 = 102,
 R_PPC64_DTPREL16_LO_DS = 102,
 R_PPC_EMB_NADDR16_LO = 103,
 R_PPC64_DTPREL16_HIGHER = 103,
 R_PPC_EMB_NADDR16_HI = 104,
 R_PPC64_DTPREL16_HIGHERA = 104,
 R_PPC_EMB_NADDR16_HA = 105,
 R_PPC64_DTPREL16_HIGHEST = 105,
 R_PPC_EMB_SDAI16 = 106,
 R_PPC64_DTPREL16_HIGHESTA = 106,
 R_PPC_EMB_SDA2I16 = 107,
 R_PPC64_TLSGD = 107,
 R_PPC_EMB_SDA2REL = 108,
 R_PPC64_TLSLD = 108,
 R_PPC_EMB_SDA21 = 109,
 R_PPC64_TOCSAVE = 109,
 R_PPC_EMB_MRKREF = 110,
 R_PPC64_ADDR16_HIGH = 110,
 R_PPC_EMB_RELSEC16 = 111,
 R_PPC64_ADDR16_HIGHA = 111,
 R_PPC_EMB_RELST_LO = 112,
 R_PPC64_TPREL16_HIGH = 112,
 R_PPC_EMB_RELST_HI = 113,
 R_PPC64_TPREL16_HIGHA = 113,
 R_PPC_EMB_RELST_HA = 114,
 R_PPC64_DTPREL16_HIGH = 114,
 R_PPC_EMB_BIT_FLD = 115,
 R_PPC64_DTPREL16_HIGHA = 115,
 R_PPC_EMB_RELSDA = 116,
 R_PPC64_REL24_NOTOC = 116,
 R_PPC64_ADDR64_LOCAL = 117,
 R_PPC64_ENTRY = 118,
 R_POWERPC_PLTSEQ = 119,
 R_POWERPC_PLTCALL = 120,
 R_PPC64_PLTSEQ_NOTOC = 121,
 R_PPC64_PLTCALL_NOTOC = 122,
 R_PPC64_PCREL_OPT = 123,
 R_PPC64_REL24_P9NOTOC = 124,

 R_PPC64_D34 = 128,
 R_PPC64_D34_LO = 129,
 R_PPC64_D34_HI30 = 130,
 R_PPC64_D34_HA30 = 131,
 R_PPC64_PCREL34 = 132,
 R_PPC64_GOT_PCREL34 = 133,
 R_PPC64_PLT_PCREL34 = 134,
 R_PPC64_PLT_PCREL34_NOTOC = 135,
 R_PPC64_ADDR16_HIGHER34 = 136,
 R_PPC64_ADDR16_HIGHERA34 = 137,
 R_PPC64_ADDR16_HIGHEST34 = 138,
 R_PPC64_ADDR16_HIGHESTA34 = 139,
 R_PPC64_REL16_HIGHER34 = 140,
 R_PPC64_REL16_HIGHERA34 = 141,
 R_PPC64_REL16_HIGHEST34 = 142,
 R_PPC64_REL16_HIGHESTA34 = 143,
 R_PPC64_D28 = 144,
 R_PPC64_PCREL28 = 145,
 R_PPC64_TPREL34 = 146,
 R_PPC64_DTPREL34 = 147,
 R_PPC64_GOT_TLSGD_PCREL34 = 148,
 R_PPC64_GOT_TLSLD_PCREL34 = 149,
 R_PPC64_GOT_TPREL_PCREL34 = 150,
 R_PPC64_GOT_DTPREL_PCREL34 = 151,

 R_PPC_VLE_REL8 = 216,
 R_PPC_VLE_REL15 = 217,
 R_PPC_VLE_REL24 = 218,
 R_PPC_VLE_LO16A = 219,
 R_PPC_VLE_LO16D = 220,
 R_PPC_VLE_HI16A = 221,
 R_PPC_VLE_HI16D = 222,
 R_PPC_VLE_HA16A = 223,
 R_PPC_VLE_HA16D = 224,
 R_PPC_VLE_SDA21 = 225,
 R_PPC_VLE_SDA21_LO = 226,
 R_PPC_VLE_SDAREL_LO16A = 227,
 R_PPC_VLE_SDAREL_LO16D = 228,
 R_PPC_VLE_SDAREL_HI16A = 229,
 R_PPC_VLE_SDAREL_HI16D = 230,
 R_PPC_VLE_SDAREL_HA16A = 231,
 R_PPC_VLE_SDAREL_HA16D = 232,

 R_PPC64_REL16_HIGH = 240,
 R_PPC64_REL16_HIGHA = 241,
 R_PPC64_REL16_HIGHER = 242,
 R_PPC64_REL16_HIGHERA = 243,
 R_PPC64_REL16_HIGHEST = 244,
 R_PPC64_REL16_HIGHESTA = 245,

 R_POWERPC_REL16DX_HA = 246,
 R_PPC64_JMP_IREL = 247,
 R_POWERPC_IRELATIVE = 248,
 R_POWERPC_REL16 = 249,
 R_POWERPC_REL16_LO = 250,
 R_POWERPC_REL16_HI = 251,
 R_POWERPC_REL16_HA = 252,
 R_POWERPC_GNU_VTINHERIT = 253,
 R_POWERPC_GNU_VTENTRY = 254,
 R_PPC_TOC16 = 255,
};

// e_flags values defined for powerpc
enum
{
 EF_PPC_EMB = 0x80000000,             // PowerPC embedded flag.
 EF_PPC_RELOCATABLE = 0x00010000,     // PowerPC -mrelocatable flag.  */
 EF_PPC_RELOCATABLE_LIB = 0x00008000, // PowerPC -mrelocatable-lib flag.  */
};

// e_flags values defined for powerpc64
enum
{
 // ABI version
 // 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.
 EF_PPC64_ABI = 3
};

// Object attribute tags.  0-3 are generic.
enum
{
 // FP ABI, low 2 bits:
 // 1 for double precision 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.
 // Next 2 bits:
 // 1 for ibm long double
 // 2 for 64-bit long double
 // 3 for IEEE long double.
 // 0 for not tagged or not using any ABIs affected by the differences.
 Tag_GNU_Power_ABI_FP = 4,

 // 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
};

// DT_PPC_OPT bits
enum
{
 PPC_OPT_TLS = 1
};

// DT_PPC64_OPT bits
enum
{
 PPC64_OPT_TLS = 1,
 PPC64_OPT_MULTI_TOC = 2,
 PPC64_OPT_LOCALENTRY = 4
};

enum
{
 // 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.

 STO_PPC64_LOCAL_BIT = 5,
 STO_PPC64_LOCAL_MASK = 0xE0
};

// 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)));
}

} // End namespace elfcpp.

#endif // !defined(ELFCPP_POWERPC_H)

You are viewing proxied material from ftp.icm.edu.pl. The copyright of proxied material belongs to its original authors. Any comments or complaints in relation to proxied material should be directed to the original authors of the content concerned. Please see the disclaimer for more details.