I'm having a tough time figuring out how to get some compile flags added
to one of my targets without it breaking the ASM source file compile.
I currently have a build with a C_CLAGS setting that looks like below:
set(CMAKE_C_FLAGS "${GCC_PROCESSOR_FLAGS}
${GCC_OPTIMIZATION_FLAGS} ${GCC_WARNING_FLAGS} ${GCC_DEBUG_FLAGS}
${GCC_C_FLAGS} ")
The only important part of the above is the GCC_DEBUG_FLAGS which looks
like this:
set(GCC_DEBUG_FLAGS "-g3 -ggdb -DDEBUG -DMXC_ASSERT_ENABLE")
I'm in the process of creating a "release" build. I'd prefer to make a
release target instead of generating with 'cmake -D RELEASE'
For my release build. I'd like to have the same options as above except
for ${GCC_DEBUG_FLAGS}. Those should be omitted. However, I'd still
like them included for all the other targets.
So I changed CMAKE_C_FLAGS to the following:
set(CMAKE_C_FLAGS "${GCC_PROCESSOR_FLAGS}
${GCC_OPTIMIZATION_FLAGS} ${GCC_WARNING_FLAGS} ${GCC_C_FLAGS} ")
Essentially removing setting the debug flags by default.
Now my release target works fine. No debug settings.
The problem comes when I try to add those debug options back into the
other builds using the per target config methods.
Doesn't matter if I use target_compile_options() or
set_target_properties() and change the COMPILE_FLAGS or COMPILE_OPTIONS
property the result is the same.
What happens is that all the options that I specify also get added to
the ASM_FLAGS setting.
In my sources list what looks similar to the following:
set(PROJ_SOURCES
${PROJ_DIRECTORY}/file1.c
${PROJ_DIRECTORY}/file2.c
${PROJ_DIRECTORY}/asm_file.S )
When -DDEBUG -DMXC_ASSERT_ENABLE get added to ASM_FLAGS then the
assembler chokes on -DDEBUG
/usr/bin/arm-none-eabi-as: unrecognized option '-EBUG'
I've also tried breaking the options apart so that the -D options are on
their own and I used target_compile_definitions() to set just the defines.
The result is still the same but instead of getting added to ASM_FLAGS
they get added to ASM_DEFINES but the assembler still chokes.
How can I add compile options to my targets that only get added to
C_FLAGS and not to my ASM_FLAGS?
Thanks.
--
Richard A. Smith
sm...@whoop.com
--
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