Rename: tests/sig.c -> tests/ia64-test-sig.c

(Logical change 1.41)

1 files changed, 93 insertions, 0 deletions

diff --git a/tests/ia64-test-sig.c b/tests/ia64-test-sig.c
index e69de29b..95b3d5f0 100644
--- a/tests/ia64-test-sig.c
+++ b/tests/ia64-test-sig.c
@@ -0,0 +1,93 @@
+/* libunwind - a platform-independent unwind library
+   Copyright (C) 2001-2003 Hewlett-Packard Co
+	Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
+
+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.  */
+
+/* This shows how to use the unwind interface to modify any ancestor
+   frame while still returning to the parent frame.  */
+
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <libunwind-ia64.h>
+
+#define panic(args...)				\
+	{ fprintf (stderr, args); exit (-1); }
+
+static void
+sighandler (int signal)
+{
+  unw_cursor_t cursor, cursor2;
+  unw_word_t ip;
+  unw_context_t uc;
+
+  printf ("caught signal %d\n", signal);
+
+  unw_getcontext (&uc);
+  if (unw_init_local (&cursor, &uc) < 0)
+    panic ("unw_init() failed!\n");
+
+  /* get cursor for caller of sighandler: */
+  if (unw_step (&cursor) < 0)
+    panic ("unw_step() failed!\n");
+
+  cursor2 = cursor;
+  while (!unw_is_signal_frame (&cursor2))
+    if (unw_step (&cursor2) < 0)
+      panic ("failed to find signal frame!\n");
+
+  if (unw_step (&cursor2) < 0)
+    panic ("unw_step() failed!\n");
+
+  if (unw_get_reg (&cursor2, UNW_REG_IP, &ip) < 0)
+    panic ("failed to get IP!\n");
+
+  /* skip faulting instruction (doesn't handle MLX template) */
+  ++ip;
+  if ((ip & 0x3) == 0x3)
+    ip += 13;
+
+  if (unw_set_reg (&cursor2, UNW_REG_IP, ip) < 0)
+    panic ("failed to set IP!\n");
+
+  unw_resume (&cursor);	/* update context & return to caller of sighandler() */
+
+  panic ("unexpected return from unw_resume()!\n");
+}
+
+static void
+doit (volatile char *p)
+{
+  int ch;
+
+  ch = *p;	/* trigger SIGSEGV */
+
+  printf ("doit: finishing execution!\n");
+}
+
+int
+main (int argc, char **argv)
+{
+  signal (SIGSEGV, sighandler);
+  doit (0);
+  return 0;
+}