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coverage: build with -O0 to get more information

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per the gcov man page:

 You should compile your code without optimization if you plan to use
 gcov because the optimization, by combining some lines of code into one
 function, may not give you as much information .

Fixes #5548

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
This commit is contained in:
Anas Nashif 2018-01-03 12:26:19 -05:00 committed by Anas Nashif
parent 8a67369887
commit 34aebad4b1
1 changed files with 10 additions and 2 deletions
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12
CMakeLists.txt
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@ -67,8 +67,13 @@ zephyr_include_directories(
zephyr_compile_definitions(
KERNEL
__ZEPHYR__=1
)
if(NOT CONFIG_COVERAGE)
zephyr_compile_definitions(
_FORTIFY_SOURCE=2
)
endif()
# We need to set an optimization level.
# Default to -Os
@ -79,10 +84,13 @@ zephyr_compile_definitions(
#
# Finally, the user can use Kconfig to add compiler options that will
# come after these options and override them
set_ifndef(OPTIMIZE_FOR_SIZE_FLAG "-Os")
set_ifndef(OPTIMIZE_FOR_DEBUG_FLAG "-Og")
set_ifndef(OPTIMIZE_FOR_SIZE_FLAG "-Os")
set_ifndef(OPTIMIZE_FOR_DEBUG_FLAG "-Og")
set_ifndef(OPTIMIZE_FOR_COVERAGE_FLAG "-O0")
if(CONFIG_DEBUG)
set(OPTIMIZATION_FLAG ${OPTIMIZE_FOR_DEBUG_FLAG})
elseif(CONFIG_COVERAGE)
set(OPTIMIZATION_FLAG ${OPTIMIZE_FOR_COVERAGE_FLAG})
else()
set(OPTIMIZATION_FLAG ${OPTIMIZE_FOR_SIZE_FLAG}) # Default
endif()