Print out stack trace in mac, too

Summary: While debugging Mac-only issue with ThreadLocalPtr, this was very useful. Let's print out stack trace in MAC OS, too.

Test Plan: Verified that somewhat useful stack trace was generated on mac. Will run PrintStack() on linux, too.

Reviewers: ljin, haobo

Reviewed By: haobo

CC: leveldb

Differential Revision: https://reviews.facebook.net/D18189

.gitignore

@@ -17,6 +17,7 @@ build_config.mk
 *.jar
 *.*jnilib*
 *.d-e
+*.o-*
 
 ldb
 manifest_dump

db/db_bench.cc

@@ -28,11 +28,11 @@
 #include "rocksdb/statistics.h"
 #include "rocksdb/perf_context.h"
 #include "port/port.h"
+#include "port/stack_trace.h"
 #include "util/crc32c.h"
 #include "util/histogram.h"
 #include "util/mutexlock.h"
 #include "util/random.h"
-#include "util/stack_trace.h"
 #include "util/string_util.h"
 #include "util/statistics.h"
 #include "util/testutil.h"
@@ -2528,7 +2528,7 @@ class Benchmark {
 }  // namespace rocksdb
 
 int main(int argc, char** argv) {
-  rocksdb::InstallStackTraceHandler();
+  rocksdb::port::InstallStackTraceHandler();
   google::SetUsageMessage(std::string("\nUSAGE:\n") + std::string(argv[0]) +
                           " [OPTIONS]...");
   google::ParseCommandLineFlags(&argc, &argv, true);

port/stack_trace.cc

@@ -3,9 +3,19 @@
 //  LICENSE file in the root directory of this source tree. An additional grant
 //  of patent rights can be found in the PATENTS file in the same directory.
 //
-#include "util/stack_trace.h"
+#include "port/stack_trace.h"
 
-#ifdef OS_LINUX
+namespace rocksdb {
+namespace port {
+
+#if defined(ROCKSDB_LITE) || !(defined(OS_LINUX) || defined(OS_MACOSX))
+
+// noop
+
+void InstallStackTraceHandler() {}
+void PrintStack(int first_frames_to_skip) {}
+
+#else
 
 #include <execinfo.h>
 #include <signal.h>
@@ -14,10 +24,10 @@
 #include <string.h>
 #include <unistd.h>
 
-namespace rocksdb {
+namespace {
 
-static const char* GetExecutableName()
-{
+#ifdef OS_LINUX
+const char* GetExecutableName() {
   static char name[1024];
 
   char link[1024];
@@ -31,25 +41,16 @@ static const char* GetExecutableName()
   }
 }
 
-void PrintStack(int first_frames_to_skip) {
-  const int kMaxFrames = 100;
-  void *frames[kMaxFrames];
-
-  auto num_frames = backtrace(frames, kMaxFrames);
-  auto symbols = backtrace_symbols(frames, num_frames);
-
-  auto executable = GetExecutableName();
-
-  for (int i = first_frames_to_skip; i < num_frames; ++i) {
-    fprintf(stderr, "#%-2d  ", i - first_frames_to_skip);
-    if (symbols) {
-      fprintf(stderr, "%s ", symbols[i]);
+void PrintStackTraceLine(const char* symbol, void* frame) {
+  static const char* executable = GetExecutableName();
+  if (symbol) {
+    fprintf(stderr, "%s ", symbol);
   }
   if (executable) {
     // out source to addr2line, for the address translation
     const int kLineMax = 256;
     char cmd[kLineMax];
-      sprintf(cmd, "addr2line %p -e %s -f -C 2>&1", frames[i], executable);
+    snprintf(cmd, kLineMax, "addr2line %p -e %s -f -C 2>&1", frame, executable);
     auto f = popen(cmd, "r");
     if (f) {
       char line[kLineMax];
@@ -60,9 +61,36 @@ void PrintStack(int first_frames_to_skip) {
       pclose(f);
     }
   } else {
-      fprintf(stderr, " %p", frames[i]);
+    fprintf(stderr, " %p", frame);
   }
+
   fprintf(stderr, "\n");
+}
+#elif OS_MACOSX
+
+void PrintStackTraceLine(const char* symbol, void* frame) {
+  // TODO(icanadi) demangle
+  if (symbol) {
+    fprintf(stderr, "%s ", symbol);
+  }
+  fprintf(stderr, " %p", frame);
+  fprintf(stderr, "\n");
+}
+
+#endif
+
+}  // namespace
+
+void PrintStack(int first_frames_to_skip) {
+  const int kMaxFrames = 100;
+  void* frames[kMaxFrames];
+
+  auto num_frames = backtrace(frames, kMaxFrames);
+  auto symbols = backtrace_symbols(frames, num_frames);
+
+  for (int i = first_frames_to_skip; i < num_frames; ++i) {
+    fprintf(stderr, "#%-2d  ", i - first_frames_to_skip);
+    PrintStackTraceLine((symbols != nullptr) ? symbols[i] : nullptr, frames[i]);
   }
 }
 
@@ -85,18 +113,9 @@ void InstallStackTraceHandler() {
   signal(SIGABRT, StackTraceHandler);
 
   printf("Installed stack trace handler for SIGILL SIGSEGV SIGBUS SIGABRT\n");
-
 }
 
+#endif
+
+}  // namespace port
 }  // namespace rocksdb
-
-#else // no-op for non-linux system for now
-
-namespace rocksdb {
-
-void InstallStackTraceHandler() {}
-void PrintStack(int first_frames_to_skip) {}
-
-}
-
-#endif // OS_LINUX

port/stack_trace.h

@@ -5,6 +5,7 @@
 //
 #pragma once
 namespace rocksdb {
+namespace port {
 
 // Install a signal handler to print callstack on the following signals:
 // SIGILL SIGSEGV SIGBUS SIGABRT
@@ -14,4 +15,5 @@ void InstallStackTraceHandler();
 // Prints stack, skips skip_first_frames frames
 void PrintStack(int first_frames_to_skip = 0);
 
+}  // namespace port
 }  // namespace rocksdb

util/signal_test.cc

@@ -3,7 +3,7 @@
 //  LICENSE file in the root directory of this source tree. An additional grant
 //  of patent rights can be found in the PATENTS file in the same directory.
 //
-#include "util/stack_trace.h"
+#include "port/stack_trace.h"
 #include <assert.h>
 
 namespace {
@@ -26,7 +26,7 @@ void f3() {
 }  // namespace
 
 int main() {
-  rocksdb::InstallStackTraceHandler();
+  rocksdb::port::InstallStackTraceHandler();
 
   f3();
 

util/testharness.h

@@ -12,10 +12,10 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <sstream>
+#include "port/stack_trace.h"
 #include "rocksdb/env.h"
 #include "rocksdb/slice.h"
 #include "util/random.h"
-#include "util/stack_trace.h"
 
 namespace rocksdb {
 namespace test {
@@ -59,7 +59,7 @@ class Tester {
   ~Tester() {
     if (!ok_) {
       fprintf(stderr, "%s:%d:%s\n", fname_, line_, ss_.str().c_str());
-      PrintStack(2);
+      port::PrintStack(2);
       exit(1);
     }
   }