SERVER-7080 Link to backtrace, backtrace_symbols and backtrace_symbols_fd at runtime

Do not make direct calls to backtrace, backtrace_symbols or backtrace_symbols_fd,
which are present in Solaris 11 but not in Solaris 10.  Instead, see if they are
available in a loaded library (which will be libc.so.1) at runtime and either
call them or call an emulation.

1 files changed, 43 insertions, 0 deletions

diff --git a/src/mongo/platform/backtrace.h b/src/mongo/platform/backtrace.h
new file mode 100644
index 00000000000..962cfa43119
--- /dev/null
+++ b/src/mongo/platform/backtrace.h
@@ -0,0 +1,43 @@
+/*    Copyright 2013 10gen Inc.
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+#pragma once
+
+#if !defined(_WIN32)
+#if defined(__sunos__) || !defined(MONGO_HAVE_EXECINFO_BACKTRACE)
+
+namespace mongo {
+    namespace pal {
+        int backtrace(void** array, int size);
+        char** backtrace_symbols(void* const* array, int size);
+        void backtrace_symbols_fd(void* const* array, int size, int fd);
+    } // namespace pal
+    using pal::backtrace;
+    using pal::backtrace_symbols;
+    using pal::backtrace_symbols_fd;
+} // namespace mongo
+
+#else
+
+#include <execinfo.h>
+
+namespace mongo {
+    using ::backtrace;
+    using ::backtrace_symbols;
+    using ::backtrace_symbols_fd;
+} // namespace mongo
+
+#endif
+#endif