# git rev-parse -q --verify dcb85f85fa6f142aae1fe86f399d4503d49f2b60^{commit} dcb85f85fa6f142aae1fe86f399d4503d49f2b60 already have revision, skipping fetch # git checkout -q -f -B kisskb dcb85f85fa6f142aae1fe86f399d4503d49f2b60 # git clean -qxdf # < git log -1 # commit dcb85f85fa6f142aae1fe86f399d4503d49f2b60 # Author: Kees Cook # Date: Thu Feb 3 12:17:54 2022 -0800 # # gcc-plugins/stackleak: Use noinstr in favor of notrace # # While the stackleak plugin was already using notrace, objtool is now a # bit more picky. Update the notrace uses to noinstr. Silences the # following objtool warnings when building with: # # CONFIG_DEBUG_ENTRY=y # CONFIG_STACK_VALIDATION=y # CONFIG_VMLINUX_VALIDATION=y # CONFIG_GCC_PLUGIN_STACKLEAK=y # # vmlinux.o: warning: objtool: do_syscall_64()+0x9: call to stackleak_track_stack() leaves .noinstr.text section # vmlinux.o: warning: objtool: do_int80_syscall_32()+0x9: call to stackleak_track_stack() leaves .noinstr.text section # vmlinux.o: warning: objtool: exc_general_protection()+0x22: call to stackleak_track_stack() leaves .noinstr.text section # vmlinux.o: warning: objtool: fixup_bad_iret()+0x20: call to stackleak_track_stack() leaves .noinstr.text section # vmlinux.o: warning: objtool: do_machine_check()+0x27: call to stackleak_track_stack() leaves .noinstr.text section # vmlinux.o: warning: objtool: .text+0x5346e: call to stackleak_erase() leaves .noinstr.text section # vmlinux.o: warning: objtool: .entry.text+0x143: call to stackleak_erase() leaves .noinstr.text section # vmlinux.o: warning: objtool: .entry.text+0x10eb: call to stackleak_erase() leaves .noinstr.text section # vmlinux.o: warning: objtool: .entry.text+0x17f9: call to stackleak_erase() leaves .noinstr.text section # # Note that the plugin's addition of calls to stackleak_track_stack() from # noinstr functions is expected to be safe, as it isn't runtime # instrumentation and is self-contained. # # Cc: Alexander Popov # Suggested-by: Peter Zijlstra # Signed-off-by: Kees Cook # Signed-off-by: Linus Torvalds # < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version # < git log --format=%s --max-count=1 dcb85f85fa6f142aae1fe86f399d4503d49f2b60 # < make -s -j 8 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux- randconfig # Added to kconfig CONFIG_STANDALONE=y # Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y # Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=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_BPF_PRELOAD=n # Added to kconfig # < make -s -j 8 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux- help # make -s -j 8 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux- olddefconfig .config:5909:warning: override: reassigning to symbol STANDALONE .config:5910:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD .config:5915:warning: override: reassigning to symbol GCC_PLUGIN_LATENT_ENTROPY # make -s -j 8 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux- vmlinux.o: warning: objtool: do_syscall_64()+0xc: call to static_key_count.constprop.0() leaves .noinstr.text section vmlinux.o: warning: objtool: vmx_l1d_flush()+0xe: call to static_key_count() leaves .noinstr.text section vmlinux.o: warning: objtool: vmx_vcpu_enter_exit()+0x48: call to static_key_count() leaves .noinstr.text section vmlinux.o: warning: objtool: vmx_update_host_rsp()+0x1c: call to static_key_count() leaves .noinstr.text section vmlinux.o: warning: objtool: svm_vcpu_enter_exit()+0x52: call to static_key_count() leaves .noinstr.text section vmlinux.o: warning: objtool: enter_from_user_mode()+0xe: call to test_bit() leaves .noinstr.text section vmlinux.o: warning: objtool: syscall_enter_from_user_mode()+0x17: call to test_bit() leaves .noinstr.text section vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare()+0xe: call to test_bit() leaves .noinstr.text section vmlinux.o: warning: objtool: exit_to_user_mode()+0x17: call to static_key_count() leaves .noinstr.text section vmlinux.o: warning: objtool: syscall_exit_to_user_mode()+0x32: call to static_key_count() leaves .noinstr.text section vmlinux.o: warning: objtool: irqentry_enter_from_user_mode()+0xe: call to test_bit() leaves .noinstr.text section vmlinux.o: warning: objtool: irqentry_exit_to_user_mode()+0x1e: call to static_key_count() leaves .noinstr.text section Completed OK # rm -rf /kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc11 # Build took: 0:08:24.552152