[1/5] gdb.threads/multi-create: Double the existing stack size.
Commit Message
Setting the stack size to 2*PTHREAD_STACK_MIN actually lowered the
stack on FreeBSD rather than raising it causing non-main threads in
the test program to overflow their stack and crash. Double the
existing stack size rather than assuming that the initial stack size
is PTHREAD_STACK_MIN.
---
gdb/testsuite/gdb.threads/multi-create.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
@@ -39,11 +39,13 @@ create_function (void *arg)
pthread_attr_t attr;
pthread_t threads[NUM_THREAD];
int args[NUM_THREAD];
+ size_t stacksize;
int i = * (int *) arg;
int j;
pthread_attr_init (&attr); /* set breakpoint 1 here. */
- pthread_attr_setstacksize (&attr, 2*PTHREAD_STACK_MIN);
+ pthread_attr_getstacksize (&attr, &stacksize);
+ pthread_attr_setstacksize (&attr, 2 * stacksize);
/* Create a ton of quick-executing threads, then wait for them to
complete. */
@@ -67,10 +69,12 @@ main (int argc, char **argv)
pthread_attr_t attr;
pthread_t threads[NUM_CREATE];
int args[NUM_CREATE];
+ size_t stacksize;
int n, i;
pthread_attr_init (&attr);
- pthread_attr_setstacksize (&attr, 2*PTHREAD_STACK_MIN);
+ pthread_attr_getstacksize (&attr, &stacksize);
+ pthread_attr_setstacksize (&attr, 2 * stacksize);
for (n = 0; n < 100; ++n)
{