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aaca1e20ea
Resolve #include lines in linker script templates against the linked component graph: idf_build_library appends every linked component's INCLUDE_DIRS to the C preprocessor invocation for each .in linker script, so a template can include any component header (e.g. a ULP memory-layout template including soc/soc.h) without the owning component having to know about it. Also: - Always pass -I<config_dir> so templates can include sdkconfig.h. - Add a FLAGS option to target_linker_script for explicit preprocessor flags (e.g. -D__ASSEMBLER__ or ld-snippet include dirs); when given, FLAGS replaces the parent-dir==target include heuristic for that script. - Add a MEMORY option to target_linker_script that emits the marked linker script as -T before all others, so section-placement scripts in one component can reference MEMORY regions and REGION_ALIASes declared by a memory-layout script in another component. - Make C-preprocessor comment keeping (-C) part of the default flag set rather than hardcoded, so FLAGS can drop it. linker_script_preprocessor no longer forces -C; both the cmakev1 and cmakev2 preprocessors add it to their default CFLAGS (output unchanged for existing scripts). A ULP template that includes soc/soc.h omits -C so ld does not choke on the header's // comments. - Store per-script metadata (generated output, flags) in MD5-keyed component properties instead of parallel lists. Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
20 lines
1.1 KiB
CMake
20 lines
1.1 KiB
CMake
# Split CFLAGS string into list for proper argument passing
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# Uses UNIX_COMMAND method because NATIVE_COMMAND has issues on Windows
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# where the first argument is parsed specially, causing problems with quoted paths
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# Note: Paths are expected to be quoted in the CFLAGS variable
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separate_arguments(CFLAGS_LIST UNIX_COMMAND "${CFLAGS}")
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# Comment handling is left to the caller via CFLAGS. The default linker-script
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# CFLAGS keep comments (-C) to preserve historical output. Callers whose
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# templates include headers with C++-style "//" comments, which ld rejects,
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# e.g. the ULP memory layout including soc/soc.h, omit -C in their flags.
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execute_process(COMMAND "${CC}" "-P" "-x" "c" "-E" ${CFLAGS_LIST} "${SOURCE}"
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RESULT_VARIABLE RET_CODE
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OUTPUT_VARIABLE PREPROCESSED_LINKER_SCRIPT
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ERROR_VARIABLE ERROR_VAR)
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if(RET_CODE AND NOT RET_CODE EQUAL 0)
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message(FATAL_ERROR "Can't generate ${TARGET}\nRET_CODE: ${RET_CODE}\nERROR_MESSAGE: ${ERROR_VAR}")
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endif()
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string(REPLACE "\\n" "\n" TEXT "${PREPROCESSED_LINKER_SCRIPT}")
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file(WRITE "${TARGET}" "${TEXT}")
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