Commit 3dfdc275 authored by Ard Biesheuvel's avatar Ard Biesheuvel Committed by Will Deacon
Browse files

arm64: kernel: Disable latent_entropy GCC plugin in early C runtime 



In subsequent patches, mark portions of the early C code will be marked
as __init.  Unfortunarely, __init implies __latent_entropy, and this
would result in the early C code being instrumented in an unsafe manner.

Disable the latent entropy plugin for the early C code.

Acked-by: default avatarMark Rutland <mark.rutland@arm.com>
Signed-off-by: default avatarArd Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20231129111555.3594833-44-ardb@google.com


Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent b1366d21

arch/arm64/kernel/pi/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -3,6 +3,7 @@ 


KBUILD_CFLAGS	:= $(subst $(CC_FLAGS_FTRACE),,$(KBUILD_CFLAGS)) -fpie \

		   -Os -DDISABLE_BRANCH_PROFILING $(DISABLE_STACKLEAK_PLUGIN) \

		   $(DISABLE_LATENT_ENTROPY_PLUGIN) \

		   $(call cc-option,-mbranch-protection=none) \

		   -I$(srctree)/scripts/dtc/libfdt -fno-stack-protector \

		   -include $(srctree)/include/linux/hidden.h \