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Add fatal signal hanlder to TestConnections

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The tests now print a stack trace to standard output if it receives a
fatal signal. This will help debug test failures caused by broken tests
and unexpected results.
This commit is contained in:
Markus Mäkelä
2017-10-02 10:32:46 +03:00
parent 1fd50222f8
commit 6f84f960ff
1 changed files with 32 additions and 0 deletions
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32
maxscale-system-test/testconnections.cpp
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@ -4,6 +4,8 @@
#include <stdarg.h>
#include <sys/time.h>
#include <time.h>
#include <signal.h>
#include <execinfo.h>
#include "mariadb_func.h"
#include "maxadmin_operations.h"
@ -18,6 +20,28 @@ static std::string required_repl_version;
static std::string required_galera_version;
}
static int signal_set(int sig, void (*handler)(int))
{
struct sigaction sigact = {};
sigact.sa_handler = handler;
do
{
errno = 0;
sigaction(sig, &sigact, NULL);
}
while (errno == EINTR);
}
void sigfatal_handler(int i)
{
void *addrs[128];
int count = backtrace(addrs, 128);
backtrace_symbols_fd(addrs, count, STDERR_FILENO);
signal_set(i, SIG_DFL);
raise(i);
}
void TestConnections::check_nodes(bool value)
{
maxscale::check_nodes = value;
@ -44,6 +68,14 @@ TestConnections::TestConnections(int argc, char *argv[]):
global_result(0), binlog_cmd_option(0), enable_timeouts(true), use_ipv6(false),
no_galera(false)
{
signal_set(SIGSEGV, sigfatal_handler);
signal_set(SIGABRT, sigfatal_handler);
signal_set(SIGFPE, sigfatal_handler);
signal_set(SIGILL, sigfatal_handler);
#ifdef SIGBUS
signal_set(SIGBUS, sigfatal_handler);
#endif
chdir(test_dir);
gettimeofday(&start_time, NULL);
ports[0] = rwsplit_port;