Add some stuff that's missing on Solaris (required for correctly running

static destructors).

2 files changed, 52 insertions, 0 deletions

diff --git a/src/cxa_atexit.c b/src/cxa_atexit.c
new file mode 100644
index 0000000..48d6d1d
--- /dev/null
+++ b/src/cxa_atexit.c
@@ -0,0 +1,44 @@
+#ifdef __sun__
+#include <pthread.h>
+#include <stdlib.h>
+
+static struct atexit_handler {
+  void (*f)(void *);
+  void *p;
+  void *d;
+  struct atexit_handler *next;
+} *head;
+
+static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
+
+int __cxa_atexit( void (*f)(void *), void *p, void *d) {
+  pthread_mutex_lock(&lock);
+  struct atexit_handler *h = malloc(sizeof(*d));
+  if (!h) {
+    pthread_mutex_unlock(&lock);
+    return 1;
+  }
+  h->f = f;
+  h->p = p;
+  h->d = d;
+  h->next = head;
+  head = h;
+  pthread_mutex_unlock(&lock);
+  return 0;
+}
+
+void __cxa_finalize(void *d ) {
+  pthread_mutex_lock(&lock);
+  struct atexit_handler **last = &head;
+  for (struct atexit_handler *h = head ; h ; h = h->next) {
+    if ((h->d == d) || (d == 0)) {
+      *last = h->next;
+      h->f(h->p);
+      free(h);
+    } else {
+      last = &head->next;
+    }
+  }
+  pthread_mutex_unlock(&lock);
+}
+#endif
diff --git a/src/cxa_finalize.c b/src/cxa_finalize.c
new file mode 100644
index 0000000..c870ca8
--- /dev/null
+++ b/src/cxa_finalize.c
@@ -0,0 +1,8 @@
+void __cxa_finalize(void *d );
+
+extern void __dso_handle;
+
+__attribute((destructor))
+static void cleanup(void) {
+  __cxa_finalize(&__dso_handle);
+}