feat: new syscall: sigpending, sigsuspend

[lunaix-os.git] / lunaix-os / kernel / signal.c

diff --git a/lunaix-os/kernel/signal.c b/lunaix-os/kernel/signal.c
index 19deff29802ba83713a6d1d2b173dc3ca9e1b256..de83438435ddbfb66ddd3c3cf2d97bb4470c7d26 100644 (file)
--- a/lunaix-os/kernel/signal.c
+++ b/lunaix-os/kernel/signal.c
@@ -17,9 +17,9 @@ default_sighandler_term(int signum)
 
 void* default_handlers[_SIG_NUM] = {
     // TODO: 添加默认handler
+    [_SIGINT] = default_sighandler_term,  [_SIGTERM] = default_sighandler_term,
+    [_SIGKILL] = default_sighandler_term, [_SIGSEGV] = default_sighandler_term,
     [_SIGINT] = default_sighandler_term,
-    [_SIGTERM] = default_sighandler_term,
-    [_SIGKILL] = default_sighandler_term,
 };
 
 // Referenced in kernel/asm/x86/interrupt.S
@@ -160,7 +160,8 @@ __DEFINE_LXSYSCALL2(int, signal, int, signum, sighandler_t, handler)
     return 0;
 }
 
-__DEFINE_LXSYSCALL(int, pause)
+void
+__do_pause()
 {
     __current->flags |= PROC_FINPAUSE;
 
@@ -170,10 +171,30 @@ __DEFINE_LXSYSCALL(int, pause)
         }
     })
     __current->k_status = EINTR;
+}
+
+__DEFINE_LXSYSCALL(int, pause)
+{
+    __do_pause();
     return -1;
 }
 
 __DEFINE_LXSYSCALL2(int, kill, pid_t, pid, int, signum)
 {
     return signal_send(pid, signum);
+}
+
+__DEFINE_LXSYSCALL1(int, sigpending, sigset_t, *sigset)
+{
+    *sigset = __current->sig_pending;
+    return 0;
+}
+
+__DEFINE_LXSYSCALL1(int, sigsuspend, sigset_t, *mask)
+{
+    sigset_t tmp = __current->sig_mask;
+    __current->sig_mask = (*mask) & ~_SIGNAL_UNMASKABLE;
+    __do_pause();
+    __current->sig_mask = tmp;
+    return -1;
 }
\ No newline at end of file