4b12fb6103
Only i386 and amd64 provide a non-trivial __getcontextx(). Use a common trivial implementation in gen/ for other architectures, rather than copying the file to each MD subdirectory. Reviewed by: kib Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D1472
77 lines
2.0 KiB
C
77 lines
2.0 KiB
C
/*
|
|
* Copyright (c) 2011 Konstantin Belousov <kib@FreeBSD.org>
|
|
* 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.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/ucontext.h>
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
|
|
int
|
|
__getcontextx_size(void)
|
|
{
|
|
|
|
return (sizeof(ucontext_t));
|
|
}
|
|
|
|
int
|
|
__fillcontextx2(char *ctx)
|
|
{
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
__fillcontextx(char *ctx)
|
|
{
|
|
ucontext_t *ucp;
|
|
|
|
ucp = (ucontext_t *)ctx;
|
|
return (getcontext(ucp));
|
|
}
|
|
|
|
__weak_reference(__getcontextx, getcontextx);
|
|
|
|
ucontext_t *
|
|
__getcontextx(void)
|
|
{
|
|
char *ctx;
|
|
int error;
|
|
|
|
ctx = malloc(__getcontextx_size());
|
|
if (ctx == NULL)
|
|
return (NULL);
|
|
if (__fillcontextx(ctx) == -1) {
|
|
error = errno;
|
|
free(ctx);
|
|
errno = error;
|
|
return (NULL);
|
|
}
|
|
return ((ucontext_t *)ctx);
|
|
}
|