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https://github.com/zephyrproject-rtos/zephyr
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f25ac092b9
Several Zephyr SDK toolchains support multilibs. Instead of hard-coding locations of the libraries, the proper/cleanest way is to query the GCC compiler for the locations of libgcc and libc. However, in order to do this, we need to ensure a certain order of initialization in the Makefile: 1. Determine CROSS_COMPILE. We cannot determine LIB_INCLUDE_DIR, TOOLCHAIN_CFLAGS yet, as we don't know the KBUILD_CFLAGS yet. 2. Calculate KBUILD_CFLAGS using CROSS_COMPILE KBUILD_CFLAGS often need the compiler to validate options, i.e: KBUILD_CFLAGS += $(call cc-option,-mabi=aapcs -mthumb -mcpu=cortex-m0) However, LIB_INCLUDE_DIR, TOOLCHAIN_CFLAGS should not be needed for this 3. Finally, using CROSS_COMPILE and KBUILD_CFLAGS determine LIB_INCLUDE_DIR, TOOLCHAIN_CFLAGS by querying GCC using -print-libgcc-file-name and -print-multi-directory command line options. This change should only affect Zephyr SDK toolchains, all other toolchains are expected to function as before. Change-Id: I27b460d46fe65d05fcb8bafb51cd6b3deba275ed Signed-off-by: Juro Bystricky <juro.bystricky@intel.com> Signed-off-by: Kumar Gala <kumar.gala@linaro.org> |
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| .. | ||
| basic | ||
| cross_compiler | ||
| gen_idt | ||
| gen_offset_header | ||
| kconfig | ||
| patches | ||
| sanity_chk | ||
| support | ||
| .gitignore | ||
| build_grub.sh | ||
| check_known_checkpatch_issues.sh | ||
| checkconfig.py | ||
| checkpatch.pl | ||
| checkstack.pl | ||
| compare_footprint | ||
| config | ||
| diffconfig | ||
| do_checkpatch.sh | ||
| expr_parser.py | ||
| filter-known-issues.py | ||
| gcc-version.sh | ||
| headerdep.pl | ||
| Kbuild.include | ||
| maintainer-checkpatch.bash | ||
| make-ll | ||
| Makefile | ||
| Makefile.build | ||
| Makefile.clean | ||
| Makefile.extrawarn | ||
| Makefile.headersinst | ||
| Makefile.help | ||
| Makefile.host | ||
| Makefile.lib | ||
| Makefile.modbuiltin | ||
| Makefile.toolchain.gccarmemb | ||
| Makefile.toolchain.issm | ||
| Makefile.toolchain.xtools | ||
| Makefile.toolchain.zephyr | ||
| mkmakefile | ||
| mksysmap | ||
| qemu-machine-hack.py | ||
| sanitycheck | ||
| size_report | ||
| spelling.txt | ||
| sysgen | ||
| tags.sh | ||
| timestamp | ||