xnu-4903.241.1.tar.gz

[apple/xnu.git] / libsyscall / mach / panic.c

diff --git a/libsyscall/mach/panic.c b/libsyscall/mach/panic.c
index d0a658643c12656006a8d8bf3d092b41d7adef56..7049b9561752ce4f003912dd17a2ba465ccbc2c9 100644 (file)
--- a/libsyscall/mach/panic.c
+++ b/libsyscall/mach/panic.c
@@ -57,8 +57,11 @@
 
 #include <mach/mach.h>
 #include <mach/mach_host.h>
-#include <stdarg.h>
-#include <stdio.h>
+
+#include "abort.h"
+#include "string.h"
+
+extern int write(int fd, const char* cbuf, int nbyte);
 
 static mach_port_t master_host_port;
 
@@ -72,14 +75,10 @@ panic_init(mach_port_t port)
 void
 panic(const char *s, ...)
 {
-       va_list listp;
-
-       printf("panic: ");
-       va_start(listp, s);
-       vprintf(s, listp);
-       va_end(listp);
-       printf("\n");
-
+       char buffer[1024];
+       int len = _mach_snprintf(buffer, sizeof(buffer), "panic: %s\n", s);
+       write(__STDERR_FILENO, buffer, len);
+       
 #define RB_DEBUGGER    0x1000  /* enter debugger NOW */
        (void) host_reboot(master_host_port, RB_DEBUGGER);