gcov

I'm using gcov to measure coverage in my C++ code. I'd like to get to 100% coverage, but am hampered by the fact that there are some lines of code that are theoretically un-hittable (methods that are required to be implemented but which are never called, default branches of switch statements, etc.). Each of these branches contains an assert( false ); statement, but gcov still marks them as un-hit. I'd like to be able to tell gcov to ignore these branches. Is there any way to give gcov that information -- by annotating the source code, or by any other mechanism? Please use lcov. It hides gcov's

I now work on C code coverage study and encountered following issue, GCC version 4.4.6: Added compiler flag CFLAGS = --coverage and linker option LDFLAGS := --coverage or LOCAL_LDLIBS := --coverage and got the error: undefined reference to '__gcov_init'" and "undefined reference to '__gcov_merge_add' Added option LOCAL_LDFLAGS := --coverage , and got link error: libgcov.a(_gcov.o): in function __gcov_set_sampling_rate: undefined reference to '__gcov_sampling_rate' libgcov.a(_gcov.o): in function gcov_exit: undefined reference to '__gcov_pmu_profile_filename' libgcov.a(_gcov.o): in function _

Is it possible to produce gcov data files ( .gcda files) by running an executable linked to a shared library built with the --coverage option? Basically, I have the main library consisting of multiple c++ files compiled into one shared library and then a subdirectory called "test" containing a test program that links to and tests the main library. Everything compiles fine and the .gcno files are produced for both the library source files and the test source files. The .gcda files are only produced for the test source files though, but I really need them for the actual source files that are

I have the .gcda and .gcno files in a folder, from which I am running the below command. $ gcovr -r . and the result is as below if I run gcov on the gcda files I get the proper coverage value. After a tedious search in multiple forums and countless experiments, finally I figured out the issue and resolved it. Two things are important to get the proper output from gcovr. One is from where the gcovr is executed and other is the root directory path. gcovr should be executed from the folder where the .gcda and .gcno files exist. And the root path is the folder where the source files(.c or .cpp)

Other people have reported not being able to generate code coverage with XCode 4 , but I find not only can I not do it from within XCode 4, I can't do it even with a simple toy program from the command line. I followed the examples given here and here , which led me to create this cov.c file: #include <stdio.h> int main (void) { int i; for (i = 1; i < 10; i++) { if (i % 3 == 0) printf("%d is divisible by 3\n", i); if (i % 11 == 0) printf("%d is divisible by 11\n", i); } return 0; } I then used the following commands in an attempt to generate code coverage: g++ -c -g -O0 --coverage -o $PWD/obj

I tried to run gcov with -fprofile-arcs & -ftest-coverage and nothing for linking. It was giving this error:- hidden symbol `__gcov_init' in /home/mojave/tools/gcc-4.4.1/amd64/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.4.1/libgcov.a(_gcov.o) is referenced by DSO and program exits. Command to compile- bsub -g /mojave/build/"DummyDate" -J compile-obj/linux24rhel3_x86_64_GCOV64/DXp.o -I -q DFM -S 8192 -R "(model==OPTERON_250)" '/usr/bin/time --format=" ...finished DXp [`hostname`] [%E s with %P CPU]" /home/mojave/tools/gcc-4.4.1/amd64/bin/g++ -fPIC -Wall -Wno-deprecated -DTCL_8_5 -m64 -march