Search notes:

arch/x86/boot/compressed/piggy.o

gcc -Wp,-MMD,arch/x86/boot/compressed/.piggy.o.d -nostdinc -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/compiler-version.h -include ./include/linux/kconfig.h -D__KERNEL__ -Werror -fmacro-prefix-map=./= -m64 -O2 -fno-strict-aliasing -fPIE -Wundef -DDISABLE_BRANCH_PROFILING -mcmodel=small -mno-red-zone -mno-mmx -mno-sse -ffreestanding -fshort-wchar -fno-stack-protector -Wno-address-of-packed-member -Wno-pointer-sign -fmacro-prefix-map=./= -fno-asynchronous-unwind-tables -D__DISABLE_EXPORTS -Wa,-mrelax-relocations=no -include ./include/linux/hidden.h -D__ASSEMBLY__ \
  -c \
  -o arch/x86/boot/compressed/piggy.o \
     arch/x86/boot/compressed/piggy.S

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