Gcov with Qt

[maninc]

Hi,

I am trying to compile my code to check Coverage. i have used "-fprofile-arcs -ftest-coverage" option while compiling my code using GCC. Neither i get any .da / .bb / .gcda files or .gcov files after running the application.

I tried using the hack specified in the link below
http://www.qtcentre.org/forum/f-gene...post78633.html But i still face the same issue.

Am i missing some thing or Is there any other configuration needed to use Gcov.

Thanks in advance.

Mani

[wysota]

Did you build the application in debug mode?

[maninc]

Yes i did compile it with debug mode (-g)

[maninc]

Hi,

When i give "make" this is what it does,

gcc -c -pipe -fprofile-arcs -ftest-coverage -g -D_REENTRANT -Wall -W -DQT_DBUS_LIB -DQT_SVG_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED  -I<Include Path> -o ./applicationwindow.o applicationwindow.cpp

gcc -c -pipe -fprofile-arcs -ftest-coverage -g -D_REENTRANT -Wall -W -DQT_DBUS_LIB -DQT_SVG_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED  -I<Include Path> -o ./applicationwindow.o applicationwindow.cpp

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Is there any mistake in the above command ?

Mani

[wysota]

I think this is not enough. You also need to link with the gcov library and pass the same flags to the linker. Here is something that worked for me:

QMAKE_CXXFLAGS += -fprofile-arcs -ftest-coverage
QMAKE_LDFLAGS += -fprofile-arcs -ftest-coverage
LIBS += -lgcov

QMAKE_CXXFLAGS += -fprofile-arcs -ftest-coverage
QMAKE_LDFLAGS += -fprofile-arcs -ftest-coverage
LIBS += -lgcov

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[maninc]

I tried this option as well. No luck yet

[wysota]

I assure you it works fine for me. Please check if all relevant files are compiled with the mentioned options.

[maninc]

Found out the issue. I had to Disable ccache to get the gcno and gcda file to be directed to sourec directory.

Thanks for the help

Mani