(Logical change 1.137)

tests/test-mem.c

@@ -0,0 +1,58 @@
+#include <libunwind.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <sys/resource.h>
+
+#define panic(args...)				\
+	{ fprintf (stderr, args); exit (-1); }
+
+int verbose;
+
+static void
+do_backtrace (void)
+{
+  unw_cursor_t cursor;
+  unw_word_t ip, sp;
+  unw_context_t uc;
+  int ret;
+
+  unw_getcontext (&uc);
+  if (unw_init_local (&cursor, &uc) < 0)
+    panic ("unw_init_local failed!\n");
+
+  do
+    {
+      unw_get_reg (&cursor, UNW_REG_IP, &ip);
+      unw_get_reg (&cursor, UNW_REG_SP, &sp);
+
+      if (verbose)
+	printf ("%016lx (sp=%016lx)\n", (long) ip, (long) sp);
+
+      ret = unw_step (&cursor);
+      if (ret < 0)
+	{
+	  unw_get_reg (&cursor, UNW_REG_IP, &ip);
+	  panic ("FAILURE: unw_step() returned %d for ip=%lx\n",
+		 ret, (long) ip);
+	}
+    }
+  while (ret > 0);
+}
+
+int
+main (int argc, char **argv)
+{
+  struct rlimit rlim;
+
+  verbose = argc > 1;
+
+  rlim.rlim_cur = 0;
+  rlim.rlim_max = RLIM_INFINITY;
+  setrlimit (RLIMIT_DATA, &rlim);
+  setrlimit (RLIMIT_AS, &rlim);
+
+  do_backtrace ();
+  return 0;
+}