0cdf4ffabc
To keep these structures ABI-compatible, half the size of r_trapno, r_err, mc_trapno, mc_flags. Add fsbase and gsbase to mcontext on both amd64 and i386. Add flags to amd64 mcontext to indicate that it contains valid segments or bases. In collaboration with: pho Discussed with: peter Reviewed by: jhb
111 lines
3.6 KiB
C
111 lines
3.6 KiB
C
/*-
|
|
* 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 _MACHINE_UCONTEXT_H_
|
|
#define _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(_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 /* !_MACHINE_UCONTEXT_H_ */
|