add deprecated SIGIOT alias for SIGABRT

[musl] / src / exit / atexit.c

diff --git a/src/exit/atexit.c b/src/exit/atexit.c
index c613d85..c31f3dc 100644 (file)
--- a/src/exit/atexit.c
+++ b/src/exit/atexit.c
@@ -14,30 +14,33 @@ static struct fl
        void *a[COUNT];
 } builtin, *head;
 
-static int lock;
+static int lock[2];
 
 void __funcs_on_exit()
 {
        int i;
        void (*func)(void *), *arg;
-       LOCK(&lock);
-       for (; head; head=head->next) {
-               for (i=COUNT-1; i>=0 && !head->f[i]; i--);
-               if (i<0) continue;
+       LOCK(lock);
+       for (; head; head=head->next) for (i=COUNT-1; i>=0; i--) {
+               if (!head->f[i]) continue;
                func = head->f[i];
                arg = head->a[i];
                head->f[i] = 0;
-               UNLOCK(&lock);
+               UNLOCK(lock);
                func(arg);
-               LOCK(&lock);
+               LOCK(lock);
        }
 }
 
+void __cxa_finalize(void *dso)
+{
+}
+
 int __cxa_atexit(void (*func)(void *), void *arg, void *dso)
 {
        int i;
 
-       LOCK(&lock);
+       LOCK(lock);
 
        /* Defer initialization of head so it can be in BSS */
        if (!head) head = &builtin;
@@ -46,7 +49,7 @@ int __cxa_atexit(void (*func)(void *), void *arg, void *dso)
        if (head->f[COUNT-1]) {
                struct fl *new_fl = calloc(sizeof(struct fl), 1);
                if (!new_fl) {
-                       UNLOCK(&lock);
+                       UNLOCK(lock);
                        return -1;
                }
                new_fl->next = head;
@@ -58,7 +61,7 @@ int __cxa_atexit(void (*func)(void *), void *arg, void *dso)
        head->f[i] = func;
        head->a[i] = arg;
 
-       UNLOCK(&lock);
+       UNLOCK(lock);
        return 0;
 }