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[not ready][cmake,ci] Add support for llvm coverage. [skip-ci] #13494

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[not ready][cmake,ci] Add support for llvm coverage. [skip-ci] #13494

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[cmake,ci] Add support for llvm coverage.
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@Axel-Naumann
Axel-Naumann committed Aug 21, 2023
commit fb7bdfee426bffafc972ae5cb2e651ce2b63dbfb
22 changes: 16 additions & 6 deletions .github/workflows/test-coverage.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -61,13 +61,15 @@ jobs:
options: '--security-opt label=disable --rm'
env:
OS_APPLICATION_CREDENTIAL_ID: '7f5b64a265244623a3a933308569bdba'
# Handle up to 256 profiles being generated concurrently and merged
LLVM_PROFILE_FILE: 'llvm_profile_out_%256m.profraw'
PYTHONUNBUFFERED: true

steps:
- name: Install cov packages
- name: Install clang and coverage packages
run: |
sudo dnf -y update
sudo dnf -y install lcov
sudo dnf -y install clang llvm
pip3 install gcovr

- name: Checkout
Expand All @@ -86,7 +88,11 @@ jobs:

- name: Apply option override from matrix for this job
env:
OVERRIDE: "coverage=On"
OVERRIDE: |
coverage=On
CMAKE_CXX_COMPILER=clang++
CMAKE_C_COMPILER=clang
CMAKE_BUILD_TYPE=Release
FILE: .github/workflows/root-ci-config/buildconfig/fedora38.txt
shell: bash
run: |
Expand Down Expand Up @@ -133,13 +139,17 @@ jobs:
--repository ${{ github.server_url }}/${{ github.repository }}
"

- name: Merge raw coverage reports
run: |
find . -name '*.profraw' > input-profraw.txt
llvm-profdata merge -sparse --input-files=input-profraw.txt --output=merged.profdata
llvm-cov export -format=lcov -instr-profile merged.profdata
ls -ltr
- name: Upload coverage to Codecov
if: ${{ !cancelled() }}
uses: codecov/codecov-action@v3
with:
env_vars: OS,PYTHON
fail_ci_if_error: true
files: /github/home/ROOT-CI/build/cobertura-cov.xml
flags: unittests
name: codecov-umbrella
files: /github/home/ROOT-CI/build/merged.profdata.lcov
verbose: true
20 changes: 14 additions & 6 deletions CMakeLists.txt
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Expand Up @@ -311,12 +311,20 @@ endif()

#---Enable test coverage -----------------------------------------------------------------------
if(coverage)
set(GCC_COVERAGE_COMPILE_FLAGS "-fprofile-arcs -ftest-coverage")
set(GCC_COVERAGE_LINK_FLAGS "-fprofile-arcs")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${GCC_COVERAGE_COMPILE_FLAGS}")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${GCC_COVERAGE_LINK_FLAGS}")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHAREDLINKER_FLAGS} ${GCC_COVERAGE_LINK_FLAGS}")
set(CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS "${CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS} ${GCC_COVERAGE_COMPILE_FLAGS}")
if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
# GCC
set(COVERAGE_COMPILE_FLAGS "-fprofile-arcs -ftest-coverage")
set(COVERAGE_LINK_FLAGS "-fprofile-arcs")
elseif (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
set(COVERAGE_COMPILE_FLAGS "-fprofile-instr-generate -fcoverage-mapping")
set(COVERAGE_LINK_FLAGS "-fprofile-instr-generate")
else()
message(FATAL_ERROR "Coverage currently only supported for GCC and clang!")
endif()
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${COVERAGE_COMPILE_FLAGS}")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${COVERAGE_LINK_FLAGS}")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHAREDLINKER_FLAGS} ${COVERAGE_LINK_FLAGS}")
set(CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS "${CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS} ${COVERAGE_COMPILE_FLAGS}")
endif()

#--- Enable build timing -----------------------------------------------------------------------
Expand Down