| /*- |
| * Copyright (c) 1999 Marcel Moolenaar |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer |
| * in this position and unchanged. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * $FreeBSD$ |
| */ |
| |
| #ifndef _BSD_MACHINE_UCONTEXT_H_ |
| #define _BSD_MACHINE_UCONTEXT_H_ |
| |
| typedef struct __mcontext { |
| /* |
| * The first 20 fields must match the definition of |
| * sigcontext. So that we can support sigcontext |
| * and ucontext_t at the same time. |
| */ |
| __register_t mc_onstack; /* XXX - sigcontext compat. */ |
| __register_t mc_gs; /* machine state (struct trapframe) */ |
| __register_t mc_fs; |
| __register_t mc_es; |
| __register_t mc_ds; |
| __register_t mc_edi; |
| __register_t mc_esi; |
| __register_t mc_ebp; |
| __register_t mc_isp; |
| __register_t mc_ebx; |
| __register_t mc_edx; |
| __register_t mc_ecx; |
| __register_t mc_eax; |
| __register_t mc_trapno; |
| __register_t mc_err; |
| __register_t mc_eip; |
| __register_t mc_cs; |
| __register_t mc_eflags; |
| __register_t mc_esp; |
| __register_t mc_ss; |
| |
| int mc_len; /* sizeof(mcontext_t) */ |
| #define _MC_FPFMT_NODEV 0x10000 /* device not present or configured */ |
| #define _MC_FPFMT_387 0x10001 |
| #define _MC_FPFMT_XMM 0x10002 |
| int mc_fpformat; |
| #define _MC_FPOWNED_NONE 0x20000 /* FP state not used */ |
| #define _MC_FPOWNED_FPU 0x20001 /* FP state came from FPU */ |
| #define _MC_FPOWNED_PCB 0x20002 /* FP state came from PCB */ |
| int mc_ownedfp; |
| int mc_spare1[1]; /* align next field to 16 bytes */ |
| /* |
| * See <machine/npx.h> for the internals of mc_fpstate[]. |
| */ |
| int mc_fpstate[128] __aligned(16); |
| |
| __register_t mc_fsbase; |
| __register_t mc_gsbase; |
| |
| int mc_spare2[6]; |
| } mcontext_t; |
| |
| #if defined(_FREEBSD_KERNEL) && defined(COMPAT_FREEBSD4) |
| |
| struct mcontext4 { |
| __register_t mc_onstack; /* XXX - sigcontext compat. */ |
| __register_t mc_gs; /* machine state (struct trapframe) */ |
| __register_t mc_fs; |
| __register_t mc_es; |
| __register_t mc_ds; |
| __register_t mc_edi; |
| __register_t mc_esi; |
| __register_t mc_ebp; |
| __register_t mc_isp; |
| __register_t mc_ebx; |
| __register_t mc_edx; |
| __register_t mc_ecx; |
| __register_t mc_eax; |
| __register_t mc_trapno; |
| __register_t mc_err; |
| __register_t mc_eip; |
| __register_t mc_cs; |
| __register_t mc_eflags; |
| __register_t mc_esp; /* machine state */ |
| __register_t mc_ss; |
| __register_t mc_fpregs[28]; /* env87 + fpacc87 + u_long */ |
| __register_t __spare__[17]; |
| }; |
| #endif |
| |
| #endif /* !_BSD_MACHINE_UCONTEXT_H_ */ |
