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 <[email protected]> 
Sent: Tuesday, September 13, 2022 9:24 PM
To: [email protected]
Cc: Guo, Gua <[email protected]>; Kinney, Michael D 
<[email protected]>; Sean Brogan <[email protected]>; 
Barkelew, Bret <[email protected]>; Michael Kubacki 
<[email protected]>
Subject: [PATCH] UnitTestFrameworkPkg: Add code coverage support for GCC

From: Gua Guo <[email protected]>

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 <[email protected]>
Cc: Sean Brogan <[email protected]>
Cc: Bret Barkelew <[email protected]>
Cc: Michael Kubacki <[email protected]>
Signed-off-by: Gua Guo <[email protected]>
---
 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



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