(Logical change 1.276)

tests/ident.c

@@ -0,0 +1,5 @@
+long
+f (long val)
+{
+  return val;
+}

tests/run-ptrace-misc

@@ -0,0 +1,2 @@
+#!/bin/sh
+./test-ptrace -c -t ./test-ptrace-misc

tests/test-ptrace-misc.c

@@ -0,0 +1,118 @@
+/* libunwind - a platform-independent unwind library
+   Copyright (C) 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 <signal.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <sys/types.h>
+
+pid_t self;
+int global[64];
+
+int
+func (int arg)
+{
+  int sum = 0, i, max, arr[1024];
+
+  if (arg == 0)
+    {
+      sum = global[2];
+      sum += sum + sum * getppid ();
+      return sum;
+    }
+  else
+    {
+      max = arg;
+      if (max >= 64)
+	max = 64;
+
+      for (i = 0; i < max; ++i)
+	arr[i] = func (arg - 1);
+
+      for (i = 0; i < max; ++i)
+	if (arr[i] > 16)
+	  sum += arr[i];
+	else
+	  sum -= arr[i];
+    }
+  return sum;
+}
+
+int
+bar (int v)
+{
+  extern long f (long);
+  int arr[1];
+  uintptr_t r;
+
+  /* This is a vain attempt to use up lots of registers to force
+     the frame-chain info to be saved on the memory stack on ia64.
+     It happens to work with gcc v3.3.4 and gcc v3.4.1 but perhaps
+     not with any other compiler.  */
+  r = (uintptr_t) malloc(f (arr[0])
+       + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v)
+       + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v)
+       + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v)
+       + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v)
+       + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v)
+       + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v)
+       + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v)
+       + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v)
+       + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v)
+       + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v)
+       + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v)
+       + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v)
+       + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v)
+       + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v)
+       + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v)
+       + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v)
+       + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + (f (v) + f (v))
+       ))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))
+       )))))))))))))))))))))))))))))))))))))))))))))))))))))));
+  if (r < 2)
+    v = r;
+
+  kill (self, SIGUSR1);	/* tell test-ptrace to start single-stepping */
+  v = func (v);
+  kill (self, SIGUSR2);	/* tell test-ptrace to stop single-stepping */
+  return v;
+}
+
+int
+main (int argc, char **argv)
+{
+  int val = argc;
+
+  signal (SIGUSR1, SIG_IGN);
+  signal (SIGUSR2, SIG_IGN);
+
+  self = getpid ();
+
+  printf ("sum = %d\n", bar (val));
+  return 0;
+}