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/* Copyright (C) 2002-2021 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 <https://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 #include <bits/types.h> #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 __glibc_reserved1[7]; }; struct _fpreg { unsigned short significand[4]; unsigned short exponent; }; struct _fpxreg { unsigned short significand[4]; unsigned short exponent; unsigned short __glibc_reserved1[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 __glibc_reserved1; struct _fpxreg _fxsr_st[8]; struct _xmmreg _xmm[8]; __uint32_t __glibc_reserved2[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 __glibc_reserved1[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 __glibc_reserved1[2]; __uint64_t __glibc_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 */