Optimize coverage CI (eProsima#59)

Author: pablogs9

ci/linux/CMakeLists.txt

@@ -20,10 +20,10 @@ include(ExternalProject)
 include(CheckCXXCompilerFlag)
 include(CheckCCompilerFlag)
 
-set(_c_flags "-fwrapv -fprofile-arcs -ftest-coverage")
-set(_cxx_flags "-fwrapv -fprofile-arcs -ftest-coverage")
-set(_exe_linker_flags "-fprofile-arcs -ftest-coverage")
-set(_shared_linker_flags "-fprofile-arcs -ftest-coverage")
+set(_c_flags "-fwrapv -fprofile-arcs -ftest-coverage --coverage -fno-inline -fno-inline-small-functions -fno-default-inline")
+set(_cxx_flags "-fwrapv -fprofile-arcs -ftest-coverage --coverage -fno-inline -fno-inline-small-functions -fno-default-inline")
+set(_exe_linker_flags "-fprofile-arcs -ftest-coverage --coverage -fno-inline -fno-inline-small-functions -fno-default-inline")
+set(_shared_linker_flags "-fprofile-arcs -ftest-coverage --coverage -fno-inline -fno-inline-small-functions -fno-default-inline")
 
 check_cxx_compiler_flag("-fprofile-abs-path" _have_cxx_fprofile_abs_path)
 if(_have_cxx_fprofile_abs_path)