FIX: Ignore SIG_BUDGET until explicitly unblocked.

The SIG_BUDGET should be ignored until the user
code is ready for them, even if that code has
already set up a signal handler.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/syscalls.c b/src/syscalls.c
index 12fe485..d3ca5d8 100644
--- a/src/syscalls.c
+++ b/src/syscalls.c
@@ -19,6 +19,12 @@ pid_t gettid(void)
 
 int set_rt_task_param(pid_t pid, struct rt_task *param)
 {
+        if (param->budget_signal_policy != NO_SIGNALS) {
+                /* drop all signals until they're explicitly activated by
+                 * user code. */
+                ignore_litmus_signals(SIG_BUDGET);
+        }
+
         return syscall(__NR_set_rt_task_param, pid, param);
 }