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154 lines
3.4 KiB
C
154 lines
3.4 KiB
C
/* Copyright (C) 2001-2023 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _SYS_UCONTEXT_H
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#define _SYS_UCONTEXT_H 1
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#include <features.h>
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#include <bits/types.h>
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#include <bits/types/sigset_t.h>
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#include <bits/types/stack_t.h>
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#ifdef __USE_MISC
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# define __ctx(fld) fld
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#else
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# define __ctx(fld) __ ## fld
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#endif
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/* Type for general register. */
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__extension__ typedef long long int greg_t;
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/* Number of general registers. */
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#define __NGREG 23
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#ifdef __USE_MISC
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# define NGREG __NGREG
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#endif
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/* Container for all general registers. */
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typedef greg_t gregset_t[__NGREG];
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#ifdef __USE_GNU
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/* Number of each register in the `gregset_t' array. */
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enum
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{
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REG_R8 = 0,
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# define REG_R8 REG_R8
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REG_R9,
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# define REG_R9 REG_R9
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REG_R10,
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# define REG_R10 REG_R10
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REG_R11,
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# define REG_R11 REG_R11
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REG_R12,
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# define REG_R12 REG_R12
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REG_R13,
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# define REG_R13 REG_R13
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REG_R14,
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# define REG_R14 REG_R14
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REG_R15,
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# define REG_R15 REG_R15
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REG_RDI,
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# define REG_RDI REG_RDI
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REG_RSI,
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# define REG_RSI REG_RSI
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REG_RBP,
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# define REG_RBP REG_RBP
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REG_RSP,
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# define REG_RSP REG_RSP
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REG_RBX,
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# define REG_RBX REG_RBX
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REG_RDX,
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# define REG_RDX REG_RDX
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REG_RCX,
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# define REG_RCX REG_RCX
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REG_RAX,
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# define REG_RAX REG_RAX
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REG_RIP,
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# define REG_RIP REG_RIP
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REG_CS, /* Actually int cs, pad. */
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# define REG_CS REG_CS
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REG_RFL,
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# define REG_RFL REG_RFL
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REG_ERR,
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# define REG_ERR REG_ERR
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REG_TRAPNO,
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# define REG_TRAPNO REG_TRAPNO
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REG_OLDMASK,
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# define REG_OLDMASK REG_OLDMASK
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REG_CR2
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# define REG_CR2 REG_CR2
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};
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#endif
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struct _libc_fpxreg
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{
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unsigned short int __ctx(significand)[4];
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unsigned short int __ctx(exponent);
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unsigned short int __glibc_reserved1[3];
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};
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struct _libc_xmmreg
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{
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__uint32_t __ctx(element)[4];
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};
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struct _libc_fpstate
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{
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/* 64-bit FXSAVE format. */
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__uint16_t __ctx(cwd);
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__uint16_t __ctx(swd);
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__uint16_t __ctx(ftw);
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__uint16_t __ctx(fop);
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__uint64_t __ctx(rip);
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__uint64_t __ctx(rdp);
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__uint32_t __ctx(mxcsr);
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__uint32_t __ctx(mxcr_mask);
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struct _libc_fpxreg _st[8];
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struct _libc_xmmreg _xmm[16];
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__uint32_t __glibc_reserved1[24];
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};
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/* Structure to describe FPU registers. */
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typedef struct _libc_fpstate *fpregset_t;
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/* Context to describe whole processor state. */
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typedef struct
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{
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gregset_t __ctx(gregs);
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/* Note that fpregs is a pointer. */
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fpregset_t __ctx(fpregs);
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__extension__ unsigned long long __reserved1 [8];
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} mcontext_t;
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/* Userlevel context. */
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typedef struct ucontext_t
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{
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unsigned long int __ctx(uc_flags);
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struct ucontext_t *uc_link;
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stack_t uc_stack;
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mcontext_t uc_mcontext;
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sigset_t uc_sigmask;
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struct _libc_fpstate __fpregs_mem;
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__extension__ unsigned long long int __ssp[4];
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} ucontext_t;
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#undef __ctx
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#endif /* sys/ucontext.h */
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