Rename: src/sigsetjmp.c -> src/setjmp/sigsetjmp.c

(Logical change 1.290)

src/setjmp/sigsetjmp.c

@@ -0,0 +1,50 @@
+/* libunwind - a platform-independent unwind library
+   Copyright (C) 2003-2004 Hewlett-Packard Co
+	Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
+
+This file is part of libunwind.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
+
+#include <libunwind.h>
+#include <setjmp.h>
+#include <stdlib.h>
+
+#include "jmpbuf.h"
+
+int
+sigsetjmp (sigjmp_buf env, int savemask)
+{
+  unw_word_t *wp = (unw_word_t *) env;
+
+  /* This should work on most platforms, but may not be
+     performance-optimal; check the code! */
+
+  wp[JB_SP] = (unw_word_t) __builtin_frame_address (0);
+  wp[JB_RP] = (unw_word_t) __builtin_return_address (0);
+  wp[JB_MASK_SAVED] = savemask;
+
+  /* Note: we assume here that "wp" has same or better alignment as
+     sigset_t.  */
+  if (savemask
+      && sigprocmask (SIG_BLOCK, NULL, (sigset_t *) (wp + JB_MASK)) < 0)
+    abort ();
+  return 0;
+}