https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95671
--- Comment #9 from Maxim Britov <ungift-ed at ya dot ru> --- Created attachment 48733 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48733&action=edit gcc -E ... I believe attachment is what you aksed. I did gcc -E -Wp,-MD,arch/x86/entry/vsyscall/.vsyscall_64.o.d -nostdinc -isystem /usr/lib/gcc/x86_64-pc-linux-gnu/10.1.0/include -I./arch/x86/include -I./arch/x86/include/generated -I./include -I./arch/x86/include/uapi -I./arch/x86/include/generated/uapi -I./include/uapi -I./include/generated/uapi -include ./include/linux/kconfig.h -include ./include/linux/compiler_types.h -D__KERNEL__ -Wall -Wundef -Werror=strict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE -Werror=implicit-function-declaration -Werror=implicit-int -Wno-format-security -std=gnu89 -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -mno-avx -m64 -falign-jumps=1 -falign-loops=1 -mno-80387 -mno-fp-ret-in-387 -mpreferred-stack-boundary=3 -mskip-rax-setup -march=bdver2 -mno-red-zone -mcmodel=kernel -Wno-sign-compare -fno-asynchronous-unwind-tables -fno-delete-null-pointer-checks -Wno-frame-address -Wno-format-truncation -Wno-format-overflow -Wno-address-of-packed-member -O2 -fno-allow-store-data-races -Wframe-larger-than=2048 -fno-stack-protector -Wno-unused-but-set-variable -Wimplicit-fallthrough -Wno-unused-const-variable -fno-omit-frame-pointer -fno-optimize-sibling-calls -fno-var-tracking-assignments -Wdeclaration-after-statement -Wvla -Wno-pointer-sign -Wno-stringop-truncation -Wno-zero-length-bounds -Wno-array-bounds -Wno-stringop-overflow -Wno-restrict -Wno-maybe-uninitialized -fno-strict-overflow -fno-merge-all-constants -fmerge-constants -fno-stack-check -fconserve-stack -Werror=date-time -Werror=incompatible-pointer-types -Werror=designated-init -fmacro-prefix-map=./= -Wno-packed-not-aligned -DKBUILD_MODFILE='"arch/x86/entry/vsyscall/vsyscall_64"' -DKBUILD_BASENAME='"vsyscall_64"' -DKBUILD_MODNAME='"vsyscall_64"' -c -o arch/x86/entry/vsyscall/vsyscall_64.o arch/x86/entry/vsyscall/vsyscall_64.c Fail was: make -f ./scripts/Makefile.build obj=arch/x86/entry/vsyscall \ \ need-builtin=1 \ need-modorder=1 gcc -Wp,-MD,arch/x86/entry/vsyscall/.vsyscall_64.o.d -nostdinc -isystem /usr/lib/gcc/x86_64-pc-linux-gnu/10.1.0/include -I./arch/x86/include -I./arch/x86/include/generated -I./include -I./arch/x86/include/uapi -I./arch/x86/include/generated/uapi -I./include/uapi -I./include/generated/uapi -include ./include/linux/kconfig.h -include ./include/linux/compiler_types.h -D__KERNEL__ -Wall -Wundef -Werror=strict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE -Werror=implicit-function-declaration -Werror=implicit-int -Wno-format-security -std=gnu89 -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -mno-avx -m64 -falign-jumps=1 -falign-loops=1 -mno-80387 -mno-fp-ret-in-387 -mpreferred-stack-boundary=3 -mskip-rax-setup -march=bdver2 -mno-red-zone -mcmodel=kernel -Wno-sign-compare -fno-asynchronous-unwind-tables -fno-delete-null-pointer-checks -Wno-frame-address -Wno-format-truncation -Wno-format-overflow -Wno-address-of-packed-member -O2 -fno-allow-store-data-races -Wframe-larger-than=2048 -fno-stack-protector -Wno-unused-but-set-variable -Wimplicit-fallthrough -Wno-unused-const-variable -fno-omit-frame-pointer -fno-optimize-sibling-calls -fno-var-tracking-assignments -Wdeclaration-after-statement -Wvla -Wno-pointer-sign -Wno-stringop-truncation -Wno-zero-length-bounds -Wno-array-bounds -Wno-stringop-overflow -Wno-restrict -Wno-maybe-uninitialized -fno-strict-overflow -fno-merge-all-constants -fmerge-constants -fno-stack-check -fconserve-stack -Werror=date-time -Werror=incompatible-pointer-types -Werror=designated-init -fmacro-prefix-map=./= -Wno-packed-not-aligned -DKBUILD_MODFILE='"arch/x86/entry/vsyscall/vsyscall_64"' -DKBUILD_BASENAME='"vsyscall_64"' -DKBUILD_MODNAME='"vsyscall_64"' -c -o arch/x86/entry/vsyscall/vsyscall_64.o arch/x86/entry/vsyscall/vsyscall_64.c ./tools/objtool/objtool check --uaccess arch/x86/entry/vsyscall/vsyscall_64.o arch/x86/entry/vsyscall/vsyscall_64.o: warning: objtool: emulate_vsyscall()+0x60: can't find jump dest instruction at .text+0xca make[3]: *** [scripts/Makefile.build:267: arch/x86/entry/vsyscall/vsyscall_64.o] Error 255 make[3]: *** Deleting file 'arch/x86/entry/vsyscall/vsyscall_64.o' make[2]: *** [scripts/Makefile.build:488: arch/x86/entry/vsyscall] Error 2 make[1]: *** [scripts/Makefile.build:488: arch/x86/entry] Error 2 make: *** [Makefile:1729: arch/x86] Error 2
