Re: [PATCH] UnitTestFrameworkPkg: Add code coverage support for GCC

["Guo, Gua" <gua.guo@intel.com>]

Hi All

I want to follow below steps to generate code coverage data based the default build. But I notice currently GCC compiler flags won't generate *gcda and *.gcno.
So add the CC flags to generate necessary data that require by "lcov" tool.

I'm not sure whether have any concern to add the flags by default.

Step1. sudo apt-get install lcov
Step2. stuart_ci_build -c .pytool/CISettings.py -p MdePkg -t NOOPT -a IA32,X64 TOOL_CHAIN_TAG=GCC5 --verbose
Step3. lcov -c --rc lcov_branch_coverage=1 -o UnitTest.info -d Build/MdePkg/HostTest/NOOPT_GCC5/X64/MdePkg/
Step4. genhtml UnitTest.info --branch-coverage -o .Build/UnitTestReport
Step5. Open "Build/UnitTestReport/index.html"

Thanks,
Gua

-----Original Message-----
From: Guo, Gua <gua.guo@intel.com> 
Sent: Tuesday, September 13, 2022 9:24 PM
To: devel@edk2.groups.io
Cc: Guo, Gua <gua.guo@intel.com>; Kinney, Michael D <michael.d.kinney@intel.com>; Sean Brogan <sean.brogan@microsoft.com>; Barkelew, Bret <bret.barkelew@microsoft.com>; Michael Kubacki <mikuback@linux.microsoft.com>
Subject: [PATCH] UnitTestFrameworkPkg: Add code coverage support for GCC

From: Gua Guo <gua.guo@intel.com>

In order to collect code coverage after running executable file, generate *.gcda and *.gcno file that require by lcov tool to generate code coverage report.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Michael Kubacki <mikuback@linux.microsoft.com>
Signed-off-by: Gua Guo <gua.guo@intel.com>
---
 UnitTestFrameworkPkg/UnitTestFrameworkPkgHost.dsc.inc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/UnitTestFrameworkPkg/UnitTestFrameworkPkgHost.dsc.inc b/UnitTestFrameworkPkg/UnitTestFrameworkPkgHost.dsc.inc
index 4dd8d4ac67..8623aecb33 100644
--- a/UnitTestFrameworkPkg/UnitTestFrameworkPkgHost.dsc.inc
+++ b/UnitTestFrameworkPkg/UnitTestFrameworkPkgHost.dsc.inc
@@ -19,7 +19,7 @@
   MemoryAllocationLib|UnitTestFrameworkPkg/Library/Posix/MemoryAllocationLibPosix/MemoryAllocationLibPosix.inf  [BuildOptions]-  GCC:*_*_*_CC_FLAGS = -fno-pie+  GCC:*_*_*_CC_FLAGS = -fno-pie -ftest-coverage -fprofile-arcs !ifdef $(UNIT_TESTING_DEBUG)   MSFT:*_*_*_CC_FLAGS  = -D UNIT_TESTING_DEBUG=1   GCC:*_*_*_CC_FLAGS   = -D UNIT_TESTING_DEBUG=1-- 
2.31.1.windows.1