# git rev-parse -q --verify 870d16757ba8918c3f8cac162b9ca7669556dbab^{commit} 870d16757ba8918c3f8cac162b9ca7669556dbab already have revision, skipping fetch # git checkout -q -f -B kisskb 870d16757ba8918c3f8cac162b9ca7669556dbab # git clean -qxdf # < git log -1 # commit 870d16757ba8918c3f8cac162b9ca7669556dbab # Author: Mark Rutland # Date: Wed Dec 16 21:32:48 2020 +0000 # # arm64: make _TIF_WORK_MASK bits contiguous # # We need the bits of _TIF_WORK_MASK to be contiguous in order to to use # this as an immediate argument to an AND instruction in entry.S. # # We happened to change these bits in commits: # # b5a5a01d8e9a ("arm64: uaccess: remove addr_limit_user_check()") # 192caabd4dd9 ("arm64: add support for TIF_NOTIFY_SIGNAL") # # which each worked in isolation, but the merge resolution in commit: # # 005b2a9dc819 ("Merge tag 'tif-task_work.arch-2020-12-14' of git://git.kernel.dk/linux-block") # # happened to make the bits non-contiguous. # # Fix this by moving TIF_NOTIFY_SIGNAL to be bit 6, which is contiguous # with the rest of _TIF_WORK_MASK. # # Otherwise, we'll get a build-time failure as below: # # arch/arm64/kernel/entry.S: Assembler messages: # arch/arm64/kernel/entry.S:733: Error: immediate out of range at operand 3 -- `and x2,x19,#((1<<1)|(1<<0)|(1<<2)|(1<<3)|(1<<4)|(1<<5)|(1<<7))' # scripts/Makefile.build:360: recipe for target 'arch/arm64/kernel/entry.o' failed # # Fixes: 005b2a9dc819a126 ("Merge tag 'tif-task_work.arch-2020-12-14' of git://git.kernel.dk/linux-block") # Signed-off-by: Mark Rutland # Cc: Catalin Marinas # Cc: Will Deacon # Signed-off-by: Linus Torvalds # < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-gcc --version # < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-ld --version # < git log --format=%s --max-count=1 870d16757ba8918c3f8cac162b9ca7669556dbab # < make -s -j 8 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 allyesconfig # Added to kconfig CONFIG_STANDALONE=y # Added to kconfig CONFIG_KCOV=n # Added to kconfig CONFIG_GCC_PLUGINS=n # Added to kconfig CONFIG_GCC_PLUGIN_CYC_COMPLEXITY=n # Added to kconfig CONFIG_GCC_PLUGIN_SANCOV=n # Added to kconfig CONFIG_GCC_PLUGIN_LATENT_ENTROPY=n # Added to kconfig CONFIG_GCC_PLUGIN_STRUCTLEAK=n # Added to kconfig CONFIG_GCC_PLUGIN_RANDSTRUCT=n # Added to kconfig CONFIG_UML_NET=n # Added to kconfig CONFIG_UML_NET_ETHERTAP=n # Added to kconfig CONFIG_UML_NET_TUNTAP=n # Added to kconfig CONFIG_UML_NET_SLIP=n # Added to kconfig CONFIG_UML_NET_DAEMON=n # Added to kconfig CONFIG_UML_NET_VDE=n # Added to kconfig CONFIG_UML_NET_MCAST=n # Added to kconfig CONFIG_UML_NET_PCAP=n # Added to kconfig CONFIG_UML_NET_SLIRP=n # Added to kconfig CONFIG_GCOV_KERNEL=n # Added to kconfig CONFIG_DEBUG_INFO_BTF=n # < make -s -j 8 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 help # make -s -j 8 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 olddefconfig .config:4404:warning: override: reassigning to symbol GCC_PLUGIN_CYC_COMPLEXITY .config:4406:warning: override: reassigning to symbol GCC_PLUGIN_LATENT_ENTROPY .config:4410:warning: override: reassigning to symbol UML_NET_ETHERTAP .config:4412:warning: override: reassigning to symbol UML_NET_SLIP .config:4415:warning: override: reassigning to symbol UML_NET_MCAST .config:4417:warning: override: reassigning to symbol UML_NET_SLIRP # make -s -j 8 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 /kisskb/src/arch/um/os-Linux/signal.c: In function 'sig_handler_common': /kisskb/src/arch/um/os-Linux/signal.c:51:1: warning: the frame size of 2976 bytes is larger than 2048 bytes [-Wframe-larger-than=] } ^ /kisskb/src/arch/um/os-Linux/signal.c: In function 'timer_real_alarm_handler': /kisskb/src/arch/um/os-Linux/signal.c:95:1: warning: the frame size of 2960 bytes is larger than 2048 bytes [-Wframe-larger-than=] } ^ Auto-detecting system features: ... libelf: [ OFF ] ... zlib: [ OFF ] ... bpf: [ on ] No libelf found make[5]: *** [Makefile:287: elfdep] Error 1 make[4]: *** [/kisskb/src/kernel/bpf/preload/Makefile:8: kernel/bpf/preload/libbpf.a] Error 2 make[3]: *** [/kisskb/src/scripts/Makefile.build:496: kernel/bpf/preload] Error 2 make[3]: *** Waiting for unfinished jobs.... make[2]: *** [/kisskb/src/scripts/Makefile.build:496: kernel/bpf] Error 2 make[2]: *** Waiting for unfinished jobs.... make[1]: *** [/kisskb/src/Makefile:1805: kernel] Error 2 make[1]: *** Waiting for unfinished jobs.... make: *** [Makefile:185: __sub-make] Error 2 Command 'make -s -j 8 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 ' returned non-zero exit status 2 # rm -rf /kisskb/build/linus_um-allyesconfig_um-x86_64 # Build took: 0:05:26.024745