1a7266b24d
syscall compare against a variable sv_minsigstksz in struct sysentvec as to properly take the size of the machine- and ABI dependent struct sigframe into account. The SVR4 and iBCS2 modules continue to have a minsigstksz of 8192 to preserve behavior. The real values (if different) are not known at this time. Other ABI modules use the real values. The native MINSIGSTKSZ is now defined as follows: Arch MINSIGSTKSZ ---- ----------- alpha 4096 i386 2048 ia64 12288 Reviewed by: mjacob Suggested by: bde
133 lines
3.9 KiB
C
133 lines
3.9 KiB
C
/*
|
|
* Copyright (c) 1986, 1989, 1991, 1993
|
|
* The Regents of the University of California. 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.
|
|
* 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
|
|
*
|
|
* @(#)signal.h 8.1 (Berkeley) 6/11/93
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _MACHINE_SIGNAL_H_
|
|
#define _MACHINE_SIGNAL_H_
|
|
|
|
/*
|
|
* Machine-dependent signal definitions
|
|
*/
|
|
|
|
typedef int sig_atomic_t;
|
|
|
|
#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
|
|
|
|
/*
|
|
* Minimum signal stack size. The current signal frame
|
|
* for i386 is 408 bytes large.
|
|
*/
|
|
#define MINSIGSTKSZ (512 * 4)
|
|
|
|
#include <machine/trap.h> /* codes for SIGILL, SIGFPE */
|
|
|
|
/*
|
|
* Information pushed on stack when a signal is delivered.
|
|
* This is used by the kernel to restore state following
|
|
* execution of the signal handler. It is also made available
|
|
* to the handler to allow it to restore state properly if
|
|
* a non-standard exit is performed.
|
|
*/
|
|
typedef unsigned int osigset_t;
|
|
|
|
struct osigcontext {
|
|
int sc_onstack; /* sigstack state to restore */
|
|
osigset_t sc_mask; /* signal mask to restore */
|
|
int sc_esp; /* machine state follows: */
|
|
int sc_ebp;
|
|
int sc_isp;
|
|
int sc_eip;
|
|
int sc_efl;
|
|
int sc_es;
|
|
int sc_ds;
|
|
int sc_cs;
|
|
int sc_ss;
|
|
int sc_edi;
|
|
int sc_esi;
|
|
int sc_ebx;
|
|
int sc_edx;
|
|
int sc_ecx;
|
|
int sc_eax;
|
|
int sc_gs;
|
|
int sc_fs;
|
|
int sc_trapno;
|
|
int sc_err;
|
|
};
|
|
|
|
/*
|
|
* The sequence of the fields/registers in struct sigcontext should match
|
|
* those in mcontext_t.
|
|
*/
|
|
struct sigcontext {
|
|
sigset_t sc_mask; /* signal mask to restore */
|
|
int sc_onstack; /* sigstack state to restore */
|
|
int sc_gs; /* machine state (struct trapframe): */
|
|
int sc_fs;
|
|
int sc_es;
|
|
int sc_ds;
|
|
int sc_edi;
|
|
int sc_esi;
|
|
int sc_ebp;
|
|
int sc_isp;
|
|
int sc_ebx;
|
|
int sc_edx;
|
|
int sc_ecx;
|
|
int sc_eax;
|
|
int sc_trapno;
|
|
int sc_err;
|
|
int sc_eip;
|
|
int sc_cs;
|
|
int sc_efl;
|
|
int sc_esp;
|
|
int sc_ss;
|
|
/*
|
|
* XXX FPU state is 27 * 4 bytes h/w, 1 * 4 bytes s/w (probably not
|
|
* needed here), or that + 16 * 4 bytes for emulators (probably all
|
|
* needed here). The "spare" bytes are mostly not spare.
|
|
*/
|
|
int sc_fpregs[28]; /* machine state (FPU): */
|
|
int sc_spare[17];
|
|
};
|
|
|
|
#define sc_sp sc_esp
|
|
#define sc_fp sc_ebp
|
|
#define sc_pc sc_eip
|
|
#define sc_ps sc_efl
|
|
#define sc_eflags sc_efl
|
|
|
|
#endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */
|
|
|
|
#endif /* !_MACHINE_SIGNAL_H_ */
|