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gdb.threads/execl.c: Ensure all threads are started before execl.

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Use a pthread_barrier to ensure all threads are started before
proceeding to the breakpoint where info threads output is checked.
This commit is contained in:
John Baldwin
2023-03-06 16:55:22 -08:00
parent cf622c39ab
commit 5c1e53c99c
1 changed files with 8 additions and 0 deletions
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8
gdb/testsuite/gdb.threads/execl.c
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@@ -26,9 +26,13 @@
#include <string.h>
#include <stdlib.h>
static pthread_barrier_t threads_started_barrier;
void *
thread_function (void *arg)
{
pthread_barrier_wait (&threads_started_barrier);
while (1)
sleep (100);
return NULL;
@@ -41,9 +45,13 @@ main (int argc, char* argv[])
pthread_t thread2;
char *new_image;
pthread_barrier_init (&threads_started_barrier, NULL, 3);
pthread_create (&thread1, NULL, thread_function, NULL);
pthread_create (&thread2, NULL, thread_function, NULL);
pthread_barrier_wait (&threads_started_barrier);
new_image = malloc (strlen (argv[0]) + 2);
strcpy (new_image, argv[0]);
strcat (new_image, "1");