Libc-498.1.5.tar.gz

[apple/libc.git] / sys / mprotect.c

diff --git a/sys/mprotect.c b/sys/mprotect.c
index 2dcc7c7fcc04b5c762088582cbabf82f70cb6bfe..3e6e98dc78003f976933c5a218691d0368581ff0 100644 (file)
--- a/sys/mprotect.c
+++ b/sys/mprotect.c
@@ -24,18 +24,18 @@
 #include <unistd.h>
 #include <sys/types.h>
 #include <sys/mman.h>
-#include <sys/syscall.h>
 
 /*
  * Stub function to account for the differences in standard compliance
  * while maintaining binary backward compatibility.
+ *
+ * This is only the legacy behavior.
  */
+extern int __mprotect(void *, size_t, int);
+
 int
 mprotect(void *addr, size_t len, int prot)
 {
-#if __DARWIN_UNIX03
-       return syscall(SYS_mprotect, addr, len, prot);
-#else  /* !__DARWIN_UNIX03 */
        void    *aligned_addr;
        int     page_mask;
        size_t  offset;
@@ -50,7 +50,7 @@ mprotect(void *addr, size_t len, int prot)
        offset = ((uintptr_t) addr) & page_mask;
        aligned_addr = (void *) (((uintptr_t) addr) & ~page_mask);
        len += offset;
-       rv = syscall(SYS_mprotect, aligned_addr, len, prot);
+       rv = __mprotect(aligned_addr, len, prot);
        if (rv == -1 && errno == ENOMEM) {
                /*
                 * Standards now require that we return ENOMEM if there was
@@ -60,5 +60,4 @@ mprotect(void *addr, size_t len, int prot)
                errno = EINVAL;
        }
        return rv;
-#endif /* !__DARWIN_UNIX03 */
 }