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cmake/toolchain: Support LLVM source profiling/coverage for native boards 

Add a a new source coverage for native builds
and new kconfig choice of COVERAGE mode to select which:
* COVERAGE_NATIVE_GCOV: what we had until now with native builds
* COVERAGE_NATIVE_SOURCE: a new LLVM source coverage mode
* COVERAGE_GCOV: the old COVERAGE_GCOV (embedded gcov data generation).

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>
This commit is contained in:
Alberto Escolar Piedras 2023-08-09 16:42:58 +02:00 committed by Carles Cufí
parent d8d5bdfdfa
commit fd27bed45e
3 changed files with 31 additions and 4 deletions
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6
cmake/compiler/clang/compiler_flags.cmake
View File

@ -15,7 +15,11 @@ set_compiler_property(PROPERTY no_printf_return_value)
check_set_compiler_property(PROPERTY hosted)
# clang flags for coverage generation
set_property(TARGET compiler PROPERTY coverage --coverage -fno-inline)
if (CONFIG_COVERAGE_NATIVE_SOURCE)
set_compiler_property(PROPERTY coverage -fprofile-instr-generate -fcoverage-mapping)
else()
set_compiler_property(PROPERTY coverage --coverage -fno-inline)
endif()
# clang flag for colourful diagnostic messages
set_compiler_property(PROPERTY diagnostic -fcolor-diagnostics)

4
cmake/linker/ld/clang/linker_flags.cmake
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@ -1,6 +1,8 @@
# The coverage linker flag is specific for clang.
if (NOT CONFIG_COVERAGE_GCOV)
if (CONFIG_COVERAGE_NATIVE_GCOV)
set_property(TARGET linker PROPERTY coverage --coverage)
elseif(CONFIG_COVERAGE_NATIVE_SOURCE)
set_property(TARGET linker PROPERTY coverage -fprofile-instr-generate -fcoverage-mapping)
endif()
# Extra warnings options for twister run

25
subsys/testsuite/Kconfig
View File

@ -40,10 +40,29 @@ config COVERAGE
For more information see
https://docs.zephyrproject.org/latest/guides/coverage.html
choice
prompt "Coverage mode"
default COVERAGE_NATIVE_GCOV if NATIVE_BUILD
default COVERAGE_GCOV if !NATIVE_BUILD
depends on COVERAGE
config COVERAGE_NATIVE_GCOV
bool "Host compiler gcov based code coverage"
depends on NATIVE_BUILD
help
Build natively with the compiler standard `--coverage` options,
that is with gcov/GCC-compatible coverage
config COVERAGE_NATIVE_SOURCE
bool "Host compiler source based code coverage"
depends on NATIVE_BUILD
depends on "${ZEPHYR_TOOLCHAIN_VARIANT}" = "llvm"
help
Build natively with the compiler source based coverage options.
Today this is only supported with LLVM
config COVERAGE_GCOV
bool "Create Coverage data from hardware platform"
default y
depends on COVERAGE
depends on !NATIVE_BUILD
help
This option will select the custom gcov library. The reports will
@ -51,6 +70,8 @@ config COVERAGE_GCOV
gen_gcov_files.py which creates the required .gcda files. These
can be read by gcov utility. For more details see gcovr.com .
endchoice
config COVERAGE_GCOV_HEAP_SIZE
int "Size of heap allocated for gcov coverage data dump"
default 32768 if X86 || SOC_SERIES_MPS2