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authorUlrich Drepper <drepper@redhat.com>2001-04-06 21:58:34 +0000
committerUlrich Drepper <drepper@redhat.com>2001-04-06 21:58:34 +0000
commit1a51bde7717d8f0458b682576029576225cf874f (patch)
tree3fd6670fdd151f6b463039b2121caaee06496bf3 /stdlib/tst-setcontext.c
parent99ee59707bafccd24e6dd38190cb3501ffa5c70a (diff)
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Update.
2001-04-06 David Mosberger <davidm@hpl.hp.com> * stdlib/tst-setcontext.c: Move st2[] to global scope. (f2): Verify that stack pointer is inside st2[]. * sysdeps/unix/sysv/linux/ia64/getcontext.S: It helps to save r12. * sysdeps/unix/sysv/linux/ia64/setcontext.S: It helps to restore r12.
Diffstat (limited to 'stdlib/tst-setcontext.c')
-rw-r--r--stdlib/tst-setcontext.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/stdlib/tst-setcontext.c b/stdlib/tst-setcontext.c
index 6ee1b514a6..ed53f9e288 100644
--- a/stdlib/tst-setcontext.c
+++ b/stdlib/tst-setcontext.c
@@ -26,6 +26,8 @@ static ucontext_t ctx[3];
static int was_in_f1;
static int was_in_f2;
+static char st2[8192];
+
static void
f1 (long a0, long a1, long a2, long a3)
{
@@ -49,7 +51,17 @@ f1 (long a0, long a1, long a2, long a3)
static void
f2 (void)
{
+ char on_stack[1];
+
puts ("start f2");
+
+ printf ("&on_stack=%p\n", on_stack);
+ if (on_stack < st2 || on_stack >= st2 + sizeof (st2))
+ {
+ printf ("%s: memory stack is not where it belongs!", __FUNCTION__);
+ exit (1);
+ }
+
if (swapcontext (&ctx[2], &ctx[1]) != 0)
{
printf ("%s: swapcontext: %m\n", __FUNCTION__);
@@ -63,7 +75,6 @@ int
main (void)
{
char st1[8192];
- char st2[8192];
puts ("making contexts");
if (getcontext (&ctx[1]) != 0)