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Add fatal signal handlers for unit tests

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This way debug assertions print a full stacktrace for unit tests.
This commit is contained in:
Markus Mäkelä
2019-06-11 13:53:24 +03:00
parent 470968a296
commit 7fe18a0488
1 changed files with 49 additions and 0 deletions
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49
server/core/test/test_utils.hh
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@ -22,6 +22,7 @@
#include <maxscale/query_classifier.hh> #include <maxscale/query_classifier.hh>
#include <maxscale/paths.h> #include <maxscale/paths.h>
#include <maxbase/alloc.h> #include <maxbase/alloc.h>
#include <maxbase/stacktrace.hh>
#include <maxscale/routingworker.hh> #include <maxscale/routingworker.hh>
#include <sys/stat.h> #include <sys/stat.h>
@ -40,8 +41,56 @@ void preload_module(const char* name, const char* path, const char* type)
set_libdir(MXS_STRDUP(old_libdir.c_str())); set_libdir(MXS_STRDUP(old_libdir.c_str()));
} }
static int set_signal(int sig, void (* handler)(int));
static void sigfatal_handler(int i)
{
set_signal(i, SIG_DFL);
mxb::dump_stacktrace(
[](const char* symbol, const char* cmd) {
MXS_ALERT(" %s: %s", symbol, cmd);
});
raise(i);
}
static int set_signal(int sig, void (* handler)(int))
{
int rc = 0;
struct sigaction sigact = {};
sigact.sa_handler = handler;
int err;
do
{
errno = 0;
err = sigaction(sig, &sigact, NULL);
}
while (errno == EINTR);
if (err < 0)
{
MXS_ERROR("Failed call sigaction() in %s due to %d, %s.",
program_invocation_short_name,
errno,
mxs_strerror(errno));
rc = 1;
}
return rc;
}
void init_test_env(char* __attribute((unused))path = nullptr, uint32_t init_type = QC_INIT_BOTH) void init_test_env(char* __attribute((unused))path = nullptr, uint32_t init_type = QC_INIT_BOTH)
{ {
set_signal(SIGSEGV, sigfatal_handler);
set_signal(SIGABRT, sigfatal_handler);
set_signal(SIGILL, sigfatal_handler);
set_signal(SIGFPE, sigfatal_handler);
#ifdef SIGBUS
set_signal(SIGBUS, sigfatal_handler);
#endif
config_get_global_options()->n_threads = 1; config_get_global_options()->n_threads = 1;
if (!mxs_log_init(NULL, NULL, MXS_LOG_TARGET_STDOUT)) if (!mxs_log_init(NULL, NULL, MXS_LOG_TARGET_STDOUT))