-/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1992, 1994 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
-#include <ansidecl.h>
-#include <gnu-stabs.h>
+#include <stddef.h>
#include <setjmp.h>
+#include <signal.h>
-#undef longjmp
-#ifndef HAVE_GNU_LD
+/* Set the signal mask to the one specified in ENV, and jump
+ to the position specified in ENV, causing the setjmp
+ call there to return VAL, or 1 if VAL is 0. */
__NORETURN
-#endif
-function_alias_void(longjmp, __longjmp, (env, val),
- DEFUN(longjmp, (env, val), CONST jmp_buf env AND int val))
+void
+longjmp (const sigjmp_buf env, int val)
+{
+ if (env[0].__mask_was_saved)
+ /* Restore the saved signal mask. */
+ (void) sigprocmask (SIG_SETMASK, &env[0].__saved_mask, (sigset_t *) NULL);
+
+ /* Call the machine-dependent function to restore machine state. */
+ __longjmp (env[0].__jmpbuf, val ?: 1);
+}