# git rev-parse -q --verify 414eece95b98b209cef0f49cfcac108fd00b8ced^{commit} 414eece95b98b209cef0f49cfcac108fd00b8ced already have revision, skipping fetch # git checkout -q -f -B kisskb 414eece95b98b209cef0f49cfcac108fd00b8ced # git clean -qxdf # < git log -1 # commit 414eece95b98b209cef0f49cfcac108fd00b8ced # Merge: 6dd580b93da8 5e95325fbbbd # Author: Linus Torvalds # Date: Tue Feb 23 15:13:45 2021 -0800 # # Merge tag 'clang-lto-v5.12-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux # # Pull more clang LTO updates from Kees Cook: # "Clang LTO x86 enablement. # # Full disclosure: while this has _not_ been in linux-next (since it # initially looked like the objtool dependencies weren't going to make # v5.12), it has been under daily build and runtime testing by Sami for # quite some time. These x86 portions have been discussed on lkml, with # Peter, Josh, and others helping nail things down. # # The bulk of the changes are to get objtool working happily. The rest # of the x86 enablement is very small. # # Summary: # # - Generate __mcount_loc in objtool (Peter Zijlstra) # # - Support running objtool against vmlinux.o (Sami Tolvanen) # # - Clang LTO enablement for x86 (Sami Tolvanen)" # # Link: https://lore.kernel.org/lkml/20201013003203.4168817-26-samitolvanen@google.com/ # Link: https://lore.kernel.org/lkml/cover.1611263461.git.jpoimboe@redhat.com/ # # * tag 'clang-lto-v5.12-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: # kbuild: lto: force rebuilds when switching CONFIG_LTO # x86, build: allow LTO to be selected # x86, cpu: disable LTO for cpu.c # x86, vdso: disable LTO only for vDSO # kbuild: lto: postpone objtool # objtool: Split noinstr validation from --vmlinux # x86, build: use objtool mcount # tracing: add support for objtool mcount # objtool: Don't autodetect vmlinux.o # objtool: Fix __mcount_loc generation with Clang's assembler # objtool: Add a pass for generating __mcount_loc # < /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 414eece95b98b209cef0f49cfcac108fd00b8ced # < make -s -j 32 ARCH=um O=/kisskb/build/linus_um-allmodconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 allmodconfig # 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 32 ARCH=um O=/kisskb/build/linus_um-allmodconfig_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 32 ARCH=um O=/kisskb/build/linus_um-allmodconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 olddefconfig .config:4511:warning: override: reassigning to symbol GCC_PLUGIN_CYC_COMPLEXITY .config:4513:warning: override: reassigning to symbol GCC_PLUGIN_LATENT_ENTROPY .config:4517:warning: override: reassigning to symbol UML_NET_ETHERTAP .config:4519:warning: override: reassigning to symbol UML_NET_SLIP .config:4522:warning: override: reassigning to symbol UML_NET_MCAST .config:4524:warning: override: reassigning to symbol UML_NET_SLIRP # make -s -j 32 ARCH=um O=/kisskb/build/linus_um-allmodconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 /usr/bin/env: 'python3': No such file or directory make[5]: *** [Makefile:161: /kisskb/build/linus_um-allmodconfig_um-x86_64/kernel/bpf/preload/bpf_helper_defs.h] Error 127 make[5]: *** Deleting file '/kisskb/build/linus_um-allmodconfig_um-x86_64/kernel/bpf/preload/bpf_helper_defs.h' make[4]: *** [/kisskb/src/kernel/bpf/preload/Makefile:11: kernel/bpf/preload/libbpf.a] Error 2 make[3]: *** [/kisskb/src/scripts/Makefile.build:515: kernel/bpf/preload] Error 2 make[2]: *** [/kisskb/src/scripts/Makefile.build:515: kernel/bpf] Error 2 make[2]: *** Waiting for unfinished jobs.... make[1]: *** [/kisskb/src/Makefile:1837: kernel] Error 2 make[1]: *** Waiting for unfinished jobs.... cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] cc1: warning: /kisskb/src/arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] make: *** [Makefile:185: __sub-make] Error 2 Command 'make -s -j 32 ARCH=um O=/kisskb/build/linus_um-allmodconfig_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-allmodconfig_um-x86_64 # Build took: 0:05:47.163226