[Test] Enable printing stack trace after fatal errors

include/cantera/base/global.h

@@ -275,6 +275,13 @@ bool legacy_rate_constants_used();
 //! @copydoc Application::Messages::setLogger
 void setLogger(Logger* logwriter);
 
+//! Enables printing a stacktrace to `std::err` if a segfault occurs. The Boost
+//! documentation says doing this from an error handler is not safe on all platforms
+//! and risks deadlocking. However, it can be useful for debugging and is therefore
+//! enabled when running tests.
+//! @since New in Cantera 3.0
+void printStackTraceOnSegfault();
+
 //! Clip *value* such that lower <= value <= upper
 template <class T>
 inline T clip(const T& value, const T& lower, const T& upper)

interfaces/cython/cantera/_utils.pxd

@@ -81,6 +81,7 @@ cdef extern from "cantera/base/global.h" namespace "Cantera":
     cdef string CxxVersion "Cantera::version" ()
     cdef cbool CxxUsesHDF5 "Cantera::usesHDF5" ()
     cdef cbool CxxDebugModeEnabled "Cantera::debugModeEnabled" ()
+    cdef void CxxPrintStackTraceOnSegfault "Cantera::printStackTraceOnSegfault" ()
 
 
 cdef extern from "cantera/cython/utils_utils.h":

interfaces/cython/cantera/_utils.pyx

@@ -72,6 +72,15 @@ _USE_SPARSE = False
 def debug_mode_enabled():
     return CxxDebugModeEnabled()
 
+def print_stack_trace_on_segfault():
+    """
+    Enable printing a stack trace if a segfault occurs. Not recommended for general
+    use as it is possible for this to deadlock.
+
+    .. versionadded:: 3.0
+    """
+    CxxPrintStackTraceOnSegfault()
+
 def appdelete():
     """ Delete all global Cantera C++ objects """
     CxxAppdelete()

src/base/global.cpp

@@ -6,8 +6,13 @@
 #include "cantera/base/FactoryBase.h"
 #include "application.h"
 #include "cantera/base/AnyMap.h"
+
+#define BOOST_STACKTRACE_GNU_SOURCE_NOT_REQUIRED
+#include <boost/stacktrace.hpp>
 #include <boost/core/demangle.hpp>
 
+#include <signal.h>
+
 namespace Cantera
 {
 
@@ -105,6 +110,26 @@ bool legacy_rate_constants_used()
     return app()->legacy_rate_constants_used();
 }
 
+namespace {
+void stacktraceWriter(int signum) {
+    if (signum == SIGSEGV) {
+        std::cerr << "\nSegmentation fault. Stack trace:\n";
+    } else {
+        std::cerr << "\nProcess terminated abnormally. Stack trace:\n";
+    }
+    ::signal(signum, SIG_DFL);
+    std::cerr << boost::stacktrace::stacktrace();
+    ::raise(signum);
+}
+}
+
+void printStackTraceOnSegfault()
+{
+    // Install signal handler to print stacktrace in case of segfault.
+    ::signal(SIGSEGV, &stacktraceWriter);
+    ::signal(SIGABRT, &stacktraceWriter);
+}
+
 // **************** Global Data ****************
 
 void appdelete()

test/clib/test_clib.cpp

@@ -230,6 +230,7 @@ int main(int argc, char** argv)
     printf("Running main() from test_clib.cpp\n");
     testing::InitGoogleTest(&argc, argv);
     make_deprecation_warnings_fatal();
+    printStackTraceOnSegfault();
     vector<string> fileNames = {"gtest-freeflame.yaml", "gtest-freeflame.h5"};
     for (const auto& fileName : fileNames) {
         if (std::ifstream(fileName).good()) {

test/equil/equil_gas.cpp

@@ -315,6 +315,7 @@ int main(int argc, char** argv)
     printf("Running main() from equil_gas.cpp\n");
     testing::InitGoogleTest(&argc, argv);
     make_deprecation_warnings_fatal();
+    printStackTraceOnSegfault();
     int result = RUN_ALL_TESTS();
     appdelete();
     return result;

test/general/string_processing.cpp

@@ -118,6 +118,7 @@ int main(int argc, char** argv)
     printf("Running main() from string_processing.cpp\n");
     testing::InitGoogleTest(&argc, argv);
     Cantera::make_deprecation_warnings_fatal();
+    Cantera::printStackTraceOnSegfault();
     int result = RUN_ALL_TESTS();
     Cantera::appdelete();
     return result;

test/general/test_misc.cpp

@@ -0,0 +1,11 @@
+// This file is part of Cantera. See License.txt in the top-level directory or
+// at https://cantera.org/license.txt for license and copyright information.
+
+#include "gtest/gtest.h"
+#include "cantera/base/global.h"
+
+using namespace Cantera;
+
+TEST(FatalError, stacktrace) {
+    EXPECT_DEATH(std::abort(), "Stack trace");
+}

test/kinetics/pdep.cpp

@@ -226,6 +226,7 @@ int main(int argc, char** argv)
 {
     printf("Running main() from pdep.cpp\n");
     Cantera::make_deprecation_warnings_fatal();
+    Cantera::printStackTraceOnSegfault();
     testing::InitGoogleTest(&argc, argv);
     int result = RUN_ALL_TESTS();
     Cantera::appdelete();

test/oneD/test_oneD.cpp

@@ -108,6 +108,7 @@ int main(int argc, char** argv)
     printf("Running main() from test_oneD.cpp\n");
     testing::InitGoogleTest(&argc, argv);
     make_deprecation_warnings_fatal();
+    printStackTraceOnSegfault();
     int result = RUN_ALL_TESTS();
     appdelete();
     return result;

test/python/utilities.py

@@ -20,6 +20,7 @@
 
 cantera.add_directory(TEST_DATA_PATH)
 cantera.add_directory(CANTERA_DATA_PATH)
+cantera.print_stack_trace_on_segfault()
 
 @pytest.fixture
 def allow_deprecated():

test/thermo/nasapoly.cpp

@@ -132,6 +132,7 @@ int main(int argc, char** argv)
 {
     printf("Running main() from nasapoly.cpp\n");
     Cantera::make_deprecation_warnings_fatal();
+    Cantera::printStackTraceOnSegfault();
     testing::InitGoogleTest(&argc, argv);
     int result = RUN_ALL_TESTS();
     Cantera::appdelete();

test/transport/transportFromScratch.cpp

@@ -171,6 +171,8 @@ TEST_F(TransportFromScratch, thermalConductivityMulti)
 int main(int argc, char** argv)
 {
     printf("Running main() from transportFromScratch.cpp\n");
+    make_deprecation_warnings_fatal();
+    printStackTraceOnSegfault();
     testing::InitGoogleTest(&argc, argv);
     int result = RUN_ALL_TESTS();
     appdelete();

test/zeroD/test_zeroD.cpp

@@ -197,6 +197,7 @@ int main(int argc, char** argv)
     printf("Running main() from test_zeroD.cpp\n");
     testing::InitGoogleTest(&argc, argv);
     Cantera::make_deprecation_warnings_fatal();
+    printStackTraceOnSegfault();
     int result = RUN_ALL_TESTS();
     Cantera::appdelete();
     return result;