4a6c2d075d
Replace sigframe sf_extramask by native sigset_t and use it to store/restore the thread signal mask without conversion to/from Linux signal mask. Pointy hat to: dchagin MFC after: 2 weeks
197 lines
4.7 KiB
C
197 lines
4.7 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 2004 Tim J. Robbins
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* Copyright (c) 2001 Doug Rabson
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* Copyright (c) 1994-1996 Søren Schmidt
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* All rights reserved.
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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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* in this position and unchanged.
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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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _X86_LINUX_SIGFRAME_H_
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#define _X86_LINUX_SIGFRAME_H_
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#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
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/* The Linux sigcontext, pretty much a standard 386 trapframe. */
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struct l_sigcontext {
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l_uint sc_gs;
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l_uint sc_fs;
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l_uint sc_es;
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l_uint sc_ds;
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l_uint sc_edi;
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l_uint sc_esi;
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l_uint sc_ebp;
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l_uint sc_esp;
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l_uint sc_ebx;
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l_uint sc_edx;
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l_uint sc_ecx;
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l_uint sc_eax;
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l_uint sc_trapno;
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l_uint sc_err;
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l_uint sc_eip;
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l_uint sc_cs;
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l_uint sc_eflags;
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l_uint sc_esp_at_signal;
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l_uint sc_ss;
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l_uint sc_387;
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l_uint sc_mask;
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l_uint sc_cr2;
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};
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struct l_ucontext {
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l_ulong uc_flags;
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l_uintptr_t uc_link;
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l_stack_t uc_stack;
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struct l_sigcontext uc_mcontext;
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l_sigset_t uc_sigmask;
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} __packed;
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struct l_fpreg {
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u_int16_t significand[4];
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u_int16_t exponent;
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};
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struct l_fpxreg {
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u_int16_t significand[4];
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u_int16_t exponent;
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u_int16_t padding[3];
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};
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struct l_xmmreg {
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u_int32_t element[4];
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};
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struct l_fpstate {
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/* Regular FPU environment */
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u_int32_t cw;
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u_int32_t sw;
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u_int32_t tag;
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u_int32_t ipoff;
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u_int32_t cssel;
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u_int32_t dataoff;
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u_int32_t datasel;
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struct l_fpreg _st[8];
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u_int16_t status;
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u_int16_t magic; /* 0xffff = regular FPU data */
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/* FXSR FPU environment */
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u_int32_t _fxsr_env[6]; /* env is ignored. */
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u_int32_t mxcsr;
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u_int32_t reserved;
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struct l_fpxreg _fxsr_st[8]; /* reg data is ignored. */
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struct l_xmmreg _xmm[8];
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u_int32_t padding[56];
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};
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/*
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* We make the stack look like Linux expects it when calling a signal
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* handler, but use the BSD way of calling the handler and sigreturn().
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*/
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struct l_sigframe {
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l_int sf_sig;
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struct l_sigcontext sf_sc;
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struct l_fpstate sf_fpstate;
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sigset_t sf_sigmask;
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};
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struct l_rt_sigframe {
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l_int sf_sig;
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l_uintptr_t sf_siginfo;
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l_uintptr_t sf_ucontext;
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l_siginfo_t sf_si;
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struct l_ucontext sf_uc;
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};
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#else
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struct l_fpstate {
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u_int16_t cwd;
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u_int16_t swd;
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u_int16_t twd;
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u_int16_t fop;
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u_int64_t rip;
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u_int64_t rdp;
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u_int32_t mxcsr;
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u_int32_t mxcsr_mask;
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u_int32_t st_space[32];
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u_int32_t xmm_space[64];
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u_int32_t reserved2[24];
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};
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struct l_sigcontext {
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l_ulong sc_r8;
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l_ulong sc_r9;
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l_ulong sc_r10;
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l_ulong sc_r11;
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l_ulong sc_r12;
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l_ulong sc_r13;
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l_ulong sc_r14;
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l_ulong sc_r15;
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l_ulong sc_rdi;
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l_ulong sc_rsi;
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l_ulong sc_rbp;
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l_ulong sc_rbx;
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l_ulong sc_rdx;
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l_ulong sc_rax;
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l_ulong sc_rcx;
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l_ulong sc_rsp;
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l_ulong sc_rip;
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l_ulong sc_rflags;
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l_ushort sc_cs;
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l_ushort sc_gs;
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l_ushort sc_fs;
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l_ushort sc___pad0;
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l_ulong sc_err;
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l_ulong sc_trapno;
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l_sigset_t sc_mask;
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l_ulong sc_cr2;
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struct l_fpstate *sc_fpstate;
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l_ulong sc_reserved1[8];
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};
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struct l_ucontext {
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l_ulong uc_flags;
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l_uintptr_t uc_link;
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l_stack_t uc_stack;
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struct l_sigcontext uc_mcontext;
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l_sigset_t uc_sigmask;
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};
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/*
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* We make the stack look like Linux expects it when calling a signal
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* handler, but use the BSD way of calling the handler and sigreturn().
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*/
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struct l_rt_sigframe {
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struct l_ucontext sf_uc;
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struct l_siginfo sf_si;
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};
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#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */
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#endif /* !_X86_LINUX_SIGFRAME_H_ */
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