ipc: relay sigreturn() to arch-specific implementation

lux-operating-system · Nov 26, 2024 · 521d935 · 521d935
1 parent 7e209de
commit 521d935
Show file tree

Hide file tree

Showing 2 changed files with 12 additions and 0 deletions.
diff --git a/src/include/kernel/signal.h b/src/include/kernel/signal.h
@@ -107,3 +107,4 @@ void signalHandle(Thread *);
 
 int kill(Thread *, pid_t, int);
 int sigaction(Thread *, int, const struct sigaction *, struct sigaction *);
+void sigreturn(Thread *);
diff --git a/src/ipc/signal.c b/src/ipc/signal.c
@@ -325,4 +325,15 @@ int sigaction(Thread *t, int sig, const struct sigaction *act, struct sigaction
     memcpy(&handlers[sig-1], act, sizeof(struct sigaction));
     releaseLock(&t->lock);
     return 0;
+}
+
+/* sigreturn(): returns from a signal handler and restores previous state
+ * params: t - calling thread
+ * returns: nothing
+ */
+
+void sigreturn(Thread *t) {
+    if(!t->handlingSignal) return;
+    platformSigreturn(t);
+    t->handlingSignal = false;
 }