How to build crashpad for Qt application - c++

Question

I am developing Qt application and I would like to use crashpad to report crashes. I have downloaded sources and built them.
Now I would like to link those statically to my application.
When I go to out folder I see a lot of .a files. Which one should I choose?
> find ./out -name *.a
./obj/handler/libhandler.a
./obj/snapshot/libsnapshot.a
./obj/snapshot/libtest_support.a
./obj/test/libtest.a
./obj/test/libgtest_main.a
./obj/test/libgmock_main.a
./obj/util/libutil.a
./obj/third_party/mini_chromium/mini_chromium/base/libbase.a
./obj/third_party/gtest/libgtest_main.a
./obj/third_party/gtest/libgtest.a
./obj/third_party/gtest/libgmock.a
./obj/third_party/gtest/libgmock_main.a
./obj/minidump/libminidump.a
./obj/minidump/libtest_support.a
./obj/client/libclient.a
Also I have built it using this command:
build/gyp_crashpad.py -Dmac_deployment_target=10.12
I do not know if I should add some parameters
Could someone please help?
Thanks in advance

Answer 1

Build Crashpad via gn and ninja, where gn generates a build configuration, and ninja does the actual building.
For a macOS Qt application to generate minidumps and upload them to a remote server it will need to be linked with the Crashpad libraries libcommon.a, libclient.a, libutil.a, libbase.a, mig_output.a:
# Crashpad libraries
LIBS += -L$$PWD/Crashpad/Libraries/MacOS/$$ARCH -lcommon
LIBS += -L$$PWD/Crashpad/Libraries/MacOS/$$ARCH -lclient
LIBS += -L$$PWD/Crashpad/Libraries/MacOS/$$ARCH -lbase
LIBS += -L$$PWD/Crashpad/Libraries/MacOS/$$ARCH -lutil
LIBS += -L$$PWD/Crashpad/Libraries/MacOS/$$ARCH -lmig_output
The application will also need to be linked with the system library bsm, and frameworks AppKit and Security:
# System libraries
LIBS += -L/usr/lib/ -lbsm
LIBS += -framework AppKit
LIBS += -framework Security
Additionally, you'll need to package crashpad_handler with your application and ensure that it is available at runtime.
More information about building Crashpad can be found here.
An example macOS Qt application that has been integrated with Crashpad can be found here.

Answer 2

Maybe type this in your code:
sys._excepthook = sys.excepthook
def my_exception_hook(exctype, value, traceback):
# Print the error and traceback
print(exctype, value, traceback)
# Call the normal Exception hook after
sys._excepthook(exctype, value, traceback)
sys.exit(1)
# Set the exception hook to our wrapping function
sys.excepthook = my_exception_hook
Also, import sys. This Code prints the error and reports it.