tree 1420eceb167b85aac72957ede9d7725e2aed6242
parent 516001db8a6ac1a10b75e6a9d152831de274e8be
author Andy Green <andy@warmcat.com> 1510629954 +0800
committer Andy Green <andy@warmcat.com> 1512099455 +0800

gcov: add in cmake and adapt defaults

1) Introduce LWS_WITH_GCOV to build with gcc / clang coverage instrumentation.

$ cd build
$ make clean && rm -f `find . -name "*.gcno" -o -name "*.gcda"` && make -j16 && sudo make install && sudo /usr/local/bin/libwebsockets-test-server -s
...
$ gcov `find . -name *.c.gcno | grep -v test-apps` -b | sed "/\.h.\$/,/^$/d"

The above are available in two helper scripts

 - scripts/build-gcov.sh
 - scripts/gcov.sh

2)

CMake defaults changed:

 - LWS_WITH_ZIP_FOPS: OFF
 - LWS_WITH_RANGES: OFF
 - LWS_WITHOUT_EXTENSIONS: ON
 - LWS_WITH_ZLIB: OFF

New CMake controls that default-OFF:

 - LWS_WITH_GENHASH
 - LWS_WITH_GENRSA

these are implied by LWS_WITH_JWS (which is implied by LWS_WITH_ACME)

3) rename ./lib/tls/XXX/server.c and client.c to XXX-server.c / XXX-client.c.

This is because gcov dumps its results using the .c filename part only,
the copies overwrite each other if there are different .c files in the tree
with the same filename part.

4) Add onetime test-client mode and test to ./test-apps/attack.sh

5) Add gcov howto in READMEs/README.build.md using attack.sh