Make size calculation more robust.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2929

diff --git a/coregrind/vg_signals.c b/coregrind/vg_signals.c
index 00409c918abd3542841fbddb4e267e023bc76dd2..7ec14898ee352e58670f338dc3f98e45197037ef 100644 (file)
--- a/coregrind/vg_signals.c
+++ b/coregrind/vg_signals.c
@@ -2045,7 +2045,7 @@ void VG_(sigstartup_actions) ( void )
 
    /* Register an alternative stack for our own signal handler to run on. */
    altstack_info.ss_sp = &(sigstack[0]);
-   altstack_info.ss_size = VG_SIGSTACK_SIZE_W * sizeof(UInt);
+   altstack_info.ss_size = sizeof(sigstack);
    altstack_info.ss_flags = 0;
    ret = VG_(sigaltstack)(&altstack_info, NULL);
    if (ret != 0) {