On Wed, Oct 17, 2018 at 6:12 PM Borislav Petkov <bp@xxxxxxx> wrote: > > On Wed, Oct 17, 2018 at 05:59:02PM +0900, Masahiro Yamada wrote: > > > DESCEND objtool > > > CALL scripts/checksyscalls.sh > > > CHK include/generated/compile.h > > > Building modules, stage 2. > > > CC arch/x86/boot/compressed/misc.o > > > LZ4 arch/x86/boot/compressed/vmlinux.bin.lz4 > > > /bin/sh: 1: lz4c: not found > > > make[2]: *** [arch/x86/boot/compressed/Makefile:143: arch/x86/boot/compressed/vmlinux.bin.lz4] Error 1 > > > make[2]: *** Waiting for unfinished jobs.... > > > make[1]: *** [arch/x86/boot/Makefile:112: arch/x86/boot/compressed/vmlinux] Error 2 > > > make: *** [arch/x86/Makefile:290: bzImage] Error 2 > > > make: *** Waiting for unfinished jobs.... > > > MODPOST 956 modules > > > > > > What am I missing? > > > > > > I have no idea. > > > > With liblz4-tool package installed on my machine, > > I can build x86 kernel with CONFIG_KERNEL_LZ4. > > What happens if you remove the lz4c executable? Do you see the ugly > error above or the "lz4 tool not found. Please install it." message with > my config? > I tried that. I can see the expected error message. masahiro@pug:~/ref/linux$ git log --oneline | head -n 4 6cd6271 kbuild: check the presence of lzo and lz4 tools when necessary b72cfb7 objtool: move libelf check out of top Makefile e3061d8 kbuild: provide a new place to check necessary host tools b955a91 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc masahiro@pug:~/ref/linux$ git clean -dqfx masahiro@pug:~/ref/linux$ cp ~/Downloads/config.lz4 .config masahiro@pug:~/ref/linux$ sudo mv /usr/bin/lz4c /usr/bin/lz4c.backup [sudo] password for masahiro: masahiro@pug:~/ref/linux$ make HOSTCC scripts/basic/fixdep HOSTCC scripts/kconfig/conf.o YACC scripts/kconfig/zconf.tab.c LEX scripts/kconfig/zconf.lex.c HOSTCC scripts/kconfig/zconf.tab.o HOSTLD scripts/kconfig/conf scripts/kconfig/conf --syncconfig Kconfig * * Restart config... * * * GCC plugins * GCC plugins (GCC_PLUGINS) [N/y/?] (NEW) * * lz4 tool not found. Please install it. * make[1]: *** [scripts/Makefile.toolcheck;46: check_lz4] Error 1 Makefile:595: include/config/auto.conf: No such file or directory make: *** [Makefile;636: include/config/auto.conf] Error 2 make: *** Deleting file 'include/config/auto.conf' -- Best Regards Masahiro Yamada
