# 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/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version # < git log --format=%s --max-count=1 414eece95b98b209cef0f49cfcac108fd00b8ced # < make -s -j 8 ARCH=x86 O=/kisskb/build/linus_x86-allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux- allmodconfig # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_SAMPLES=n # < make -s -j 8 ARCH=x86 O=/kisskb/build/linus_x86-allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux- help # make -s -j 8 ARCH=x86 O=/kisskb/build/linus_x86-allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux- olddefconfig # make -s -j 8 ARCH=x86 O=/kisskb/build/linus_x86-allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux- /kisskb/src/lib/bitfield_kunit.c: In function 'test_bitfields_constants': /kisskb/src/lib/bitfield_kunit.c:93:1: warning: the frame size of 7432 bytes is larger than 2048 bytes [-Wframe-larger-than=] } ^ Completed OK # rm -rf /kisskb/build/linus_x86-allmodconfig_x86_64-gcc8 # Build took: 0:46:46.649942