/usr/include/x86_64-linux-gnu/bits/sigcontext.h is in libc6-dev 2.23-0ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 | /* Copyright (C) 2002-2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#ifndef _BITS_SIGCONTEXT_H
#define _BITS_SIGCONTEXT_H 1
#if !defined _SIGNAL_H && !defined _SYS_UCONTEXT_H
# error "Never use <bits/sigcontext.h> directly; include <signal.h> instead."
#endif
#define FP_XSTATE_MAGIC1 0x46505853U
#define FP_XSTATE_MAGIC2 0x46505845U
#define FP_XSTATE_MAGIC2_SIZE sizeof(FP_XSTATE_MAGIC2)
struct _fpx_sw_bytes
{
__uint32_t magic1;
__uint32_t extended_size;
__uint64_t xstate_bv;
__uint32_t xstate_size;
__uint32_t padding[7];
};
struct _fpreg
{
unsigned short significand[4];
unsigned short exponent;
};
struct _fpxreg
{
unsigned short significand[4];
unsigned short exponent;
unsigned short padding[3];
};
struct _xmmreg
{
__uint32_t element[4];
};
#ifndef __x86_64__
struct _fpstate
{
/* Regular FPU environment. */
__uint32_t cw;
__uint32_t sw;
__uint32_t tag;
__uint32_t ipoff;
__uint32_t cssel;
__uint32_t dataoff;
__uint32_t datasel;
struct _fpreg _st[8];
unsigned short status;
unsigned short magic;
/* FXSR FPU environment. */
__uint32_t _fxsr_env[6];
__uint32_t mxcsr;
__uint32_t reserved;
struct _fpxreg _fxsr_st[8];
struct _xmmreg _xmm[8];
__uint32_t padding[56];
};
#ifndef sigcontext_struct
/* Kernel headers before 2.1.1 define a struct sigcontext_struct, but
we need sigcontext. Some packages have come to rely on
sigcontext_struct being defined on 32-bit x86, so define this for
their benefit. */
# define sigcontext_struct sigcontext
#endif
#define X86_FXSR_MAGIC 0x0000
struct sigcontext
{
unsigned short gs, __gsh;
unsigned short fs, __fsh;
unsigned short es, __esh;
unsigned short ds, __dsh;
unsigned long edi;
unsigned long esi;
unsigned long ebp;
unsigned long esp;
unsigned long ebx;
unsigned long edx;
unsigned long ecx;
unsigned long eax;
unsigned long trapno;
unsigned long err;
unsigned long eip;
unsigned short cs, __csh;
unsigned long eflags;
unsigned long esp_at_signal;
unsigned short ss, __ssh;
struct _fpstate * fpstate;
unsigned long oldmask;
unsigned long cr2;
};
#else /* __x86_64__ */
struct _fpstate
{
/* FPU environment matching the 64-bit FXSAVE layout. */
__uint16_t cwd;
__uint16_t swd;
__uint16_t ftw;
__uint16_t fop;
__uint64_t rip;
__uint64_t rdp;
__uint32_t mxcsr;
__uint32_t mxcr_mask;
struct _fpxreg _st[8];
struct _xmmreg _xmm[16];
__uint32_t padding[24];
};
struct sigcontext
{
__uint64_t r8;
__uint64_t r9;
__uint64_t r10;
__uint64_t r11;
__uint64_t r12;
__uint64_t r13;
__uint64_t r14;
__uint64_t r15;
__uint64_t rdi;
__uint64_t rsi;
__uint64_t rbp;
__uint64_t rbx;
__uint64_t rdx;
__uint64_t rax;
__uint64_t rcx;
__uint64_t rsp;
__uint64_t rip;
__uint64_t eflags;
unsigned short cs;
unsigned short gs;
unsigned short fs;
unsigned short __pad0;
__uint64_t err;
__uint64_t trapno;
__uint64_t oldmask;
__uint64_t cr2;
__extension__ union
{
struct _fpstate * fpstate;
__uint64_t __fpstate_word;
};
__uint64_t __reserved1 [8];
};
#endif /* __x86_64__ */
struct _xsave_hdr
{
__uint64_t xstate_bv;
__uint64_t reserved1[2];
__uint64_t reserved2[5];
};
struct _ymmh_state
{
__uint32_t ymmh_space[64];
};
struct _xstate
{
struct _fpstate fpstate;
struct _xsave_hdr xstate_hdr;
struct _ymmh_state ymmh;
};
#endif /* _BITS_SIGCONTEXT_H */
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