Hi, I rebased some patches with should compile a working u-boot with clang and gcc (besides a couple which don't have memset), but I didn't bother too much about that for now.
Obviously this is not intended for the next release, but a request for comment. Clang is not really fond of the gd assignment and I tried to get rid of them since crt0.S already handles this. I also added clearing gd (in a broken way) to crt0.S to prevent all board_init_f having to do it again and again (i2c / serial typically depends on it). The most important question is if these patches break any existing board. Your feedback is welcome. Kind regards, Jeroen patches are also at (with some twister board specific ones): https://github.com/jhofstee/u-boot/commits/v2014.07-rc2-clang Jeroen Hofstee (10): ARM: crt0.S: clear the global data ARM: omap3/board: add spl specific board_init_f board_r: only assign gd when requested ARM: do not set gd in generic board again ARM: SPL: do not set gd again cc-option: make it work with clang ARM: make gd a function a function for clang inline: use the gcc inline version instead of the c99 one. eabi_compat: add __aeabi_memcpy __aeabi_memset README.clang: build command with clang arch/arm/cpu/armv7/omap3/board.c | 15 ++++++++++----- arch/arm/include/asm/config.h | 2 -- arch/arm/include/asm/global_data.h | 17 +++++++++++++++++ arch/arm/lib/crt0.S | 6 ++++++ arch/arm/lib/eabi_compat.c | 15 +++++++++++++-- arch/arm/lib/spl.c | 3 --- common/board_r.c | 2 +- doc/README.clang | 15 +++++++++++++++ include/linux/compiler-gcc.h | 7 ++++--- scripts/Kbuild.include | 4 ++-- 10 files changed, 68 insertions(+), 18 deletions(-) create mode 100644 doc/README.clang -- 1.8.3.2 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
