Import BSDDB 4.7.25 (as of svn r89086)

os/os_stack.c

@@ -0,0 +1,45 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 2001,2008 Oracle.  All rights reserved.
+ *
+ * $Id: os_stack.c 63573 2008-05-23 21:43:21Z trent.nelson $
+ */
+
+#include "db_config.h"
+
+#include "db_int.h"
+#if defined(HAVE_SYSTEM_INCLUDE_FILES) && defined(HAVE_BACKTRACE) && \
+    defined(HAVE_BACKTRACE_SYMBOLS) && defined(HAVE_EXECINFO_H)
+#include <execinfo.h>
+#endif
+
+/*
+ * __os_stack --
+ *	Output a stack trace to the message file handle.
+ *
+ * PUBLIC: void __os_stack __P((ENV *));
+ */
+void
+__os_stack(env)
+	ENV *env;
+{
+#if defined(HAVE_BACKTRACE) && defined(HAVE_BACKTRACE_SYMBOLS)
+	void *array[200];
+	size_t i, size;
+	char **strings;
+
+	/*
+	 * Solaris and the GNU C library support this interface.  Solaris
+	 * has additional interfaces (printstack and walkcontext), I don't
+	 * know if they offer any additional value or not.
+	 */
+	size = backtrace(array, sizeof(array) / sizeof(array[0]));
+	strings = backtrace_symbols(array, size);
+
+	for (i = 0; i < size; ++i)
+		__db_errx(env, "%s", strings[i]);
+	free(strings);
+#endif
+	COMPQUIET(env, NULL);
+}