On 3/15/18, Aleksei Fedotov <lexa@xxxxxxxxx> wrote: >>> It looks like passing O= or KBUILD_OUTPUT= doesn't work for out of tree >>> modules. > >> It doesn't? It should, what is the result when you try to do that? > > It is trying to use path specified in O= as path to the pre-build > kernel and fails to find kernel scripts: > > $ make V=1 -C $(KDIR) M=`pwd` O=`pwd`/build_x86 > make: Entering directory '/home/lexa/linux' > make -C /home/lexa/module/build_x86 KBUILD_SRC=/home/lexa/linux \ > -f /home/lexa/linux/Makefile > make[1]: Entering directory '/home/lexa/module/build_x86' > mkdir -p /home/lexa/module/.tmp_versions ; rm -f > /home/lexa/module/.tmp_versions/* > > WARNING: Symbol version dump ./Module.symvers > is missing; modules will have no dependencies and modversions. > > make -f /home/lexa/linux/scripts/Makefile.build obj=/home/lexa/module > make -f /home/lexa/linux/scripts/Makefile.build > obj=/home/lexa/module/module1 need-builtin=1 > rm -f /home/lexa/module/module1/built-in.o; ar rcSTPD > /home/lexa/module/module1/built-in.o > gcc -Wp,-MD,/home/lexa/module/module1/.task1.o.d -nostdinc -isystem > /usr/lib/gcc/x86_64-linux-gnu/5/include > -I/home/lexa/linux/arch/x86/include -I./arch/x86/include/generated > -I/home/lexa/linux/include -I./include > -I/home/lexa/linux/arch/x86/include/uapi > -I./arch/x86/include/generated/uapi -I/home/lexa/linux/include/uapi > -I./include/generated/uapi -include > /home/lexa/linux/include/linux/kconfig.h -I/home/lexa/module/module1 > -I/home/lexa/module/module1 -D__KERNEL__ -Wall -Wundef > -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common > -fshort-wchar -Werror-implicit-function-declaration > -Wno-format-security -std=gnu89 -fno-PIE -mno-sse -mno-mmx -mno-sse2 > -mno-3dnow -mno-avx -m64 -falign-jumps=1 -falign-loops=1 -mno-80387 > -mno-fp-ret-in-387 -mpreferred-stack-boundary=3 -mskip-rax-setup > -mtune=generic -mno-red-zone -mcmodel=kernel -funit-at-a-time > -DCONFIG_X86_X32_ABI -DCONFIG_AS_CFI=1 -DCONFIG_AS_CFI_SIGNAL_FRAME=1 > -DCONFIG_AS_CFI_SECTIONS=1 -DCONFIG_AS_FXSAVEQ=1 -DCONFIG_AS_SSSE3=1 > -DCONFIG_AS_CRC32=1 -DCONFIG_AS_AVX=1 -DCONFIG_AS_AVX2=1 > -DCONFIG_AS_AVX512=1 -DCONFIG_AS_SHA1_NI=1 -DCONFIG_AS_SHA256_NI=1 > -pipe -Wno-sign-compare -fno-asynchronous-unwind-tables > -mindirect-branch=thunk-extern -mindirect-branch-register -DRETPOLINE > -fno-delete-null-pointer-checks -O2 --param=allow-store-data-races=0 > -DCC_HAVE_ASM_GOTO -Wframe-larger-than=1024 -fstack-protector-strong > -Wno-unused-but-set-variable -fno-var-tracking-assignments -g > -gdwarf-4 -pg -mfentry -DCC_USING_FENTRY -Wdeclaration-after-statement > -Wno-pointer-sign -fno-strict-overflow -fno-stack-check > -fconserve-stack -Werror=implicit-int -Werror=strict-prototypes > -Werror=date-time -Werror=incompatible-pointer-types > -Werror=designated-init -DMODULE -DKBUILD_BASENAME='"task1"' > -DKBUILD_MODNAME='"mod1"' -c -o /home/lexa/module/module1/.tmp_task1.o > /home/lexa/module/module1/task1.c > /bin/sh: 1: scripts/basic/fixdep: not found make oldconfig? > /home/lexa/linux/scripts/Makefile.build:316: recipe for target > '/home/lexa/module/module1/task1.o' failed > make[3]: *** [/home/lexa/module/module1/task1.o] Error 127 > /home/lexa/linux/scripts/Makefile.build:575: recipe for target > '/home/lexa/module/module1' failed > make[2]: *** [/home/lexa/module/module1] Error 2 > /home/lexa/linux/Makefile:1509: recipe for target > '_module_/home/lexa/module' failed > make[1]: *** [_module_/home/lexa/module] Error 2 > make[1]: Leaving directory '/home/lexa/module/build_x86' > Makefile:146: recipe for target 'sub-make' failed > make: *** [sub-make] Error 2 > make: Leaving directory '/home/lexa/linux' > > > >> And do you have a pointer to your Makefile, perhaps you are doing >> something "wrong" in it? > > I don't use Makefile in my module, I solely rely only on Kbuild files. > Is that wrong? > > -- > Kind Regards, > Aleksei > > _______________________________________________ > Kernelnewbies mailing list > Kernelnewbies@xxxxxxxxxxxxxxxxx > https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > -- Regards / Mit besten Grüßen, Denis _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
