I am trying to get code coverage for an arm based embedded system. Using x86 for cross compilation.So basically, I have a cross profiling question. For the application I want to generate code coverage data, I have defined a signal handler inside which I call __gcov_flush() to flush code coverage data to .gcda files. I am sending SIGUSR1 to the application. The application uses multiple .so files where bulk of the code and logic is implemented. When I send the signal to the process, the .gcda files for just the application get created/updated. The .gcda files for the .so's are not created/updated at all. Is there a way to make __gcov_flush() flush all the coverage data for the .so's that the application is using? I dont want to force the application to exit() because that would defeat the purpose of what I am trying to do. I need to be able to dump coverage data for the application and the .so it uses at runtime. Please help!! Using ARM GCC v4.5.1. This is what I have done so far to generate code coverage data: I have defined the following options for GCC in the Master makefile: CFLAGS += -fprofile-arcs -ftest-coverage LDFLAGS += -fprofile-arcs -ftest-coverage I am also exporting GCOV_PREFIX and GCOV_PREFIX_STRIP as global environment variables on the target system to force the .gcda files to be created in a specific path. This is working. My only problem is the .gcda files for the .so's not getting created/update when __gcov_flush() is called from the application
