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Print stack trace on assertion failure

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Summary:
This will help me a lot! When we hit an assertion in unittest, we get the whole stack trace now.

Also, changed stack trace a bit, we now include actual demangled C++ class::function symbols!

Test Plan: Added ASSERT_TRUE(false) to a test, observed a stack trace

Reviewers: haobo, dhruba, kailiu

Reviewed By: kailiu

CC: leveldb

Differential Revision: https://reviews.facebook.net/D14499
This commit is contained in:
Igor Canadi 2013-12-06 17:11:09 -08:00
parent 07c8448845
commit 9644e0e0c7
3 changed files with 21 additions and 16 deletions
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32
port/stack_trace.cc
View File

@ -31,12 +31,7 @@ static const char* GetExecutableName()
}
}
static void StackTraceHandler(int sig) {
// reset to default handler
signal(sig, SIG_DFL);
fprintf(stderr, "Received signal %d (%s)\n", sig, strsignal(sig));
void PrintStack(int first_frames_to_skip) {
const int kMaxFrames = 100;
void *frames[kMaxFrames];
@ -45,11 +40,8 @@ static void StackTraceHandler(int sig) {
auto executable = GetExecutableName();
const int kSkip = 2; // skip the top two signal handler related frames
for (int i = kSkip; i < num_frames; ++i)
{
fprintf(stderr, "#%-2d %p ", i - kSkip, frames[i]);
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]);
}
@ -57,22 +49,29 @@ static void StackTraceHandler(int sig) {
// out source to addr2line, for the address translation
const int kLineMax = 256;
char cmd[kLineMax];
sprintf(cmd,"addr2line %p -e %s 2>&1", frames[i] , executable);
sprintf(cmd, "addr2line %p -e %s -f -C 2>&1", frames[i], executable);
auto f = popen(cmd, "r");
if (f) {
char line[kLineMax];
while (fgets(line, sizeof(line), f)) {
fprintf(stderr, "%s", line);
line[strlen(line) - 1] = 0; // remove newline
fprintf(stderr, "%s\t", line);
}
pclose(f);
} else {
fprintf(stderr, "\n");
}
} else {
fprintf(stderr, "\n");
fprintf(stderr, " %p", frames[i]);
}
fprintf(stderr, "\n");
}
}
static void StackTraceHandler(int sig) {
// reset to default handler
signal(sig, SIG_DFL);
fprintf(stderr, "Received signal %d (%s)\n", sig, strsignal(sig));
// skip the top three signal handler related frames
PrintStack(3);
// re-signal to default handler (so we still get core dump if needed...)
raise(sig);
}
@ -96,6 +95,7 @@ void InstallStackTraceHandler() {
namespace rocksdb {
void InstallStackTraceHandler() {}
void PrintStack(int first_frames_to_skip) {}
}

3
util/stack_trace.h
View File

@ -11,4 +11,7 @@ namespace rocksdb {
// Currently supports linux only. No-op otherwise.
void InstallStackTraceHandler();
// Prints stack, skips skip_first_frames frames
void PrintStack(int first_frames_to_skip = 0);
} // namespace rocksdb

2
util/testharness.h
View File

@ -15,6 +15,7 @@
#include "rocksdb/env.h"
#include "rocksdb/slice.h"
#include "util/random.h"
#include "util/stack_trace.h"
namespace rocksdb {
namespace test {
@ -58,6 +59,7 @@ class Tester {
~Tester() {
if (!ok_) {
fprintf(stderr, "%s:%d:%s\n", fname_, line_, ss_.str().c_str());
PrintStack(2);
exit(1);
}
}