os/board/rtl8730e: Optimize the CFLAGS length #7035
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Generate a response file containing all the CFLAGS instead of loading an entire CFLAGS string directly. --- > Before CFLAGS length: 3777 / 4096 > After CFLAGS length: 28 / 4096 Built with before and after modification, MD5 sum of TizenRT/build/output/bin/kernel_rtl8730e_200204.trpk match.
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| endif | ||
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| # Generate response file containing all CFLAGS | ||
| CFLAGS_FILE := $(TOPDIR)/cflags.rsp |
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The CFLAGS response file approach is a valid solution for addressing command line length limitations. However, the implementation should be carefully integrated with the existing build system to ensure robustness and maintainability. The approach is particularly useful for complex builds with many include paths and definitions.
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Optimize the CFLAGS length
Currently, there are many
-Iinclude paths appended toCFLAGS. This may cause the limit of 4096 to exceed.This PR would edit the Makefile to generate a temporary response file containing all the
CFLAGSinstead of loading an entire CFLAGS string directly.Verification
Built with before and after modification, MD5 sum of
TizenRT/build/output/bin/kernel_rtl8730e_200204.trpkmatch.