projects
/
musl
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
|
inline
| side by side
math: raise invalid flag in ilogb*.c on +-0, +-inf and nan
[musl]
/
src
/
exit
/
atexit.c
diff --git
a/src/exit/atexit.c
b/src/exit/atexit.c
index
49c060e
..
c31f3dc
100644
(file)
--- a/
src/exit/atexit.c
+++ b/
src/exit/atexit.c
@@
-1,5
+1,6
@@
#include <stddef.h>
#include <stdlib.h>
#include <stddef.h>
#include <stdlib.h>
+#include <stdint.h>
#include <limits.h>
#include "libc.h"
#include <limits.h>
#include "libc.h"
@@
-9,30
+10,37
@@
static struct fl
{
struct fl *next;
static struct fl
{
struct fl *next;
- void (*f[COUNT])(void);
+ void (*f[COUNT])(void *);
+ void *a[COUNT];
} builtin, *head;
} builtin, *head;
-static int run_atexit_functions(void)
+static int lock[2];
+
+void __funcs_on_exit()
{
int i;
{
int i;
- for (; head; head=head->next) {
- for (i=COUNT-1; i>=0 && !head->f[i]; i--);
- for (; i>=0; i--) head->f[i]();
+ void (*func)(void *), *arg;
+ 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);
+ func(arg);
+ LOCK(lock);
}
}
- return 0;
}
}
-int (*const __funcs_on_exit)(void) = run_atexit_functions;
+void __cxa_finalize(void *dso)
+{
+}
-int
atexit(void (*func)(void)
)
+int
__cxa_atexit(void (*func)(void *), void *arg, void *dso
)
{
{
- static int lock;
int i;
int i;
- /* Hook for atexit extensions */
- if (libc.atexit) return libc.atexit(func);
-
- LOCK(&lock);
+ LOCK(lock);
/* Defer initialization of head so it can be in BSS */
if (!head) head = &builtin;
/* Defer initialization of head so it can be in BSS */
if (!head) head = &builtin;
@@
-41,7
+49,7
@@
int atexit(void (*func)(void))
if (head->f[COUNT-1]) {
struct fl *new_fl = calloc(sizeof(struct fl), 1);
if (!new_fl) {
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;
return -1;
}
new_fl->next = head;
@@
-51,7
+59,18
@@
int atexit(void (*func)(void))
/* Append function to the list. */
for (i=0; i<COUNT && head->f[i]; i++);
head->f[i] = func;
/* Append function to the list. */
for (i=0; i<COUNT && head->f[i]; i++);
head->f[i] = func;
+ head->a[i] = arg;
- UNLOCK(
&
lock);
+ UNLOCK(lock);
return 0;
}
return 0;
}
+
+static void call(void *p)
+{
+ ((void (*)(void))(uintptr_t)p)();
+}
+
+int atexit(void (*func)(void))
+{
+ return __cxa_atexit(call, (void *)(uintptr_t)func, 0);
+}