Hi Qian, On 25/06/2019 13:16, Qian Cai wrote: > The linux-next commit "arm64: vdso: Substitute gettimeofday() with C > implementation" [1] breaks clang build. > > error: invalid value 'tiny' in '-mcode-model tiny' > make[1]: *** [scripts/Makefile.build:279: > arch/arm64/kernel/vdso/vgettimeofday.o] Error 1 > make[1]: *** Waiting for unfinished jobs.... > make: *** [arch/arm64/Makefile:180: vdso_prepare] Error 2 > > [1] https://patchwork.kernel.org/patch/11009663/ >
I am not sure what does exactly break from your report. Could you please provide more details? On my env: $ make mrproper && make defconfig && make CC=clang HOSTCC=clang -j$(nproc) ... arch/arm64/Makefile:56: CROSS_COMPILE_COMPAT is clang, the compat vDSO will not be built ... LDS arch/arm64/kernel/vdso/vdso.lds AS arch/arm64/kernel/vdso/note.o AS arch/arm64/kernel/vdso/sigreturn.o CC arch/arm64/kernel/vdso/vgettimeofday.o LD arch/arm64/kernel/vdso/vdso.so.dbg VDSOCHK arch/arm64/kernel/vdso/vdso.so.dbg VDSOSYM include/generated/vdso-offsets.h ... LD vmlinux.o MODPOST vmlinux.o MODINFO modules.builtin.modinfo KSYM .tmp_kallsyms1.o KSYM .tmp_kallsyms2.o LD vmlinux SORTEX vmlinux SYSMAP System.map Building modules, stage 2. OBJCOPY arch/arm64/boot/Image MODPOST 483 modules -- Regards, Vincenzo
