mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-24 11:29:10 +00:00
31a53cd036
machine/signal.h and machine/ucontext.h into common x86 includes, copying from amd64 and merging with i386. Kernel-only compat definitions are kept in the i386/include/sigframe.h and i386/include/signal.h, to reduce amd64 kernel namespace pollution. The amd64 compat uses its own definitions so far. The _MACHINE_ELF_WANT_32BIT definition is to allow the sys/boot/userboot/userboot/elf32_freebsd.c to use i386 ELF definitions on the amd64 compile host. The same hack could be usefully abused by other code too.
73 lines
2.5 KiB
C
73 lines
2.5 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 _X86_SIGFRAME_H_
|
|
#define _X86_SIGFRAME_H_
|
|
|
|
/*
|
|
* Signal frames, arguments passed to application signal handlers.
|
|
*/
|
|
|
|
#ifdef __i386__
|
|
struct sigframe {
|
|
/*
|
|
* The first four members may be used by applications.
|
|
*
|
|
* NOTE: The 4th argument is undocumented, ill commented
|
|
* on and seems to be somewhat BSD "standard". Handlers
|
|
* installed with sigvec may be using it.
|
|
*/
|
|
register_t sf_signum;
|
|
register_t sf_siginfo; /* code or pointer to sf_si */
|
|
register_t sf_ucontext; /* points to sf_uc */
|
|
register_t sf_addr; /* undocumented 4th arg */
|
|
|
|
union {
|
|
__siginfohandler_t *sf_action;
|
|
__sighandler_t *sf_handler;
|
|
} sf_ahu;
|
|
ucontext_t sf_uc; /* = *sf_ucontext */
|
|
siginfo_t sf_si; /* = *sf_siginfo (SA_SIGINFO case) */
|
|
};
|
|
#endif /* __i386__ */
|
|
|
|
#ifdef __amd64__
|
|
struct sigframe {
|
|
union {
|
|
__siginfohandler_t *sf_action;
|
|
__sighandler_t *sf_handler;
|
|
} sf_ahu;
|
|
ucontext_t sf_uc; /* = *sf_ucontext */
|
|
siginfo_t sf_si; /* = *sf_siginfo (SA_SIGINFO case) */
|
|
};
|
|
#endif /* __amd64__ */
|
|
|
|
#endif /* _X86_SIGFRAME_H_ */
|