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(sigsetjmp): Use macros from jmpbuf.h instead of hardcoded values.

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(Logical change 1.259)
This commit is contained in:
hp.com!davidm 2004-08-31 13:59:10 +00:00
parent e1e7db0e9b
commit c961dc646e
1 changed files with 8 additions and 5 deletions
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13
src/sigsetjmp.c
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@ -1,5 +1,5 @@
/* libunwind - a platform-independent unwind library
Copyright (C) 2003 Hewlett-Packard Co
Copyright (C) 2003-2004 Hewlett-Packard Co
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
This file is part of libunwind.
@ -27,6 +27,8 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
#include <setjmp.h>
#include <stdlib.h>
#include "jmpbuf.h"
int
sigsetjmp (sigjmp_buf env, int savemask)
{
@ -35,13 +37,14 @@ sigsetjmp (sigjmp_buf env, int savemask)
/* This should work on most platforms, but may not be
performance-optimal; check the code! */
wp[0] = (unw_word_t) __builtin_frame_address (0);
wp[1] = (unw_word_t) __builtin_return_address (0);
wp[2] = savemask;
wp[JB_SP] = (unw_word_t) __builtin_frame_address (0);
wp[JB_RP] = (unw_word_t) __builtin_return_address (0);
wp[JB_MASK_SAVED] = savemask;
/* Note: we assume here that "wp" has same or better alignment as
sigset_t. */
if (savemask && sigprocmask (SIG_BLOCK, NULL, (sigset_t *) (wp + 3)) < 0)
if (savemask
&& sigprocmask (SIG_BLOCK, NULL, (sigset_t *) (wp + JB_MASK)) < 0)
abort ();
return 0;
}