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553cb3ed46
sys/param.h was manually adjusted to not define __NetBSD_Version__ since it will be defined by the compiler.
134 lines
3.8 KiB
C
Vendored
134 lines
3.8 KiB
C
Vendored
/* $NetBSD: mcontext.h,v 1.15 2019/12/27 00:32:17 kamil Exp $ */
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/*-
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* Copyright (c) 1999 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Klaus Klein.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _I386_MCONTEXT_H_
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#define _I386_MCONTEXT_H_
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/*
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* mcontext extensions to handle signal delivery.
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*/
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#define _UC_SETSTACK 0x00010000
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#define _UC_CLRSTACK 0x00020000
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#define _UC_VM 0x00040000
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#define _UC_TLSBASE 0x00080000
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/*
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* Layout of mcontext_t according to the System V Application Binary Interface,
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* Intel386(tm) Architecture Processor Supplement, Fourth Edition.
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*/
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/*
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* General register state
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*/
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#define _NGREG 19
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typedef int __greg_t;
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typedef __greg_t __gregset_t[_NGREG];
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#define _REG_GS 0
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#define _REG_FS 1
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#define _REG_ES 2
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#define _REG_DS 3
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#define _REG_EDI 4
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#define _REG_ESI 5
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#define _REG_EBP 6
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#define _REG_ESP 7
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#define _REG_EBX 8
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#define _REG_EDX 9
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#define _REG_ECX 10
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#define _REG_EAX 11
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#define _REG_TRAPNO 12
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#define _REG_ERR 13
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#define _REG_EIP 14
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#define _REG_CS 15
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#define _REG_EFL 16
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#define _REG_UESP 17
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#define _REG_SS 18
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/*
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* Floating point register state
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*/
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typedef struct {
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union {
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struct {
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int __fp_state[27]; /* Environment and registers */
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} __fpchip_state; /* x87 regs in fsave format */
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struct {
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char __fp_xmm[512];
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} __fp_xmm_state; /* x87 and xmm regs in fxsave format */
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int __fp_fpregs[128];
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} __fp_reg_set;
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int __fp_pad[33]; /* Historic padding */
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} __fpregset_t;
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__CTASSERT(sizeof (__fpregset_t) == 512 + 33 * 4);
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typedef struct {
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__gregset_t __gregs;
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__fpregset_t __fpregs;
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__greg_t _mc_tlsbase;
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} mcontext_t;
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#define _UC_FXSAVE 0x20 /* FP state is in FXSAVE format in XMM space */
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#define _UC_MACHINE_PAD 4 /* Padding appended to ucontext_t */
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#define _UC_UCONTEXT_ALIGN (~0xf)
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#ifndef _UC_MACHINE_SP
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#define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_UESP])
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#endif
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#define _UC_MACHINE_FP(uc) ((uc)->uc_mcontext.__gregs[_REG_EBP])
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#define _UC_MACHINE_PC(uc) ((uc)->uc_mcontext.__gregs[_REG_EIP])
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#define _UC_MACHINE_INTRV(uc) ((uc)->uc_mcontext.__gregs[_REG_EAX])
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#define _UC_MACHINE_SET_PC(uc, pc) _UC_MACHINE_PC(uc) = (pc)
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#define __UCONTEXT_SIZE 776
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#if defined(_RTLD_SOURCE) || defined(_LIBC_SOURCE) || \
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defined(__LIBPTHREAD_SOURCE__)
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#include <sys/tls.h>
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__BEGIN_DECLS
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static __inline void *
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__lwp_getprivate_fast(void)
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{
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void *__tmp;
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__asm volatile("movl %%gs:0, %0" : "=r" (__tmp));
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return __tmp;
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}
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__END_DECLS
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#endif
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#endif /* !_I386_MCONTEXT_H_ */ |