This is a manual revert of commit 7f3c5d099b6f8452dc4dcfe4179ea48e6a13d0eb, but using ccflags-$(CONFIG_CC_IS_CLANG) which is shorter.
Turns out that this is reproducible still under specific compiler versions (mea culpa: I did not test every supported version of clang), and even a few randconfigs bots found. We'll have to revisit this again in the future, for now back this out. Reported-by: Nathan Chancellor <nat...@kernel.org> Closes: https://github.com/ClangBuiltLinux/linux/issues/252#issuecomment-1690371256 Reported-by: kernel test robot <l...@intel.com> Closes: https://lore.kernel.org/llvm/202308260344.vc4giuk7-...@intel.com/ Suggested-by: Nathan Chancellor <nat...@kernel.org> Reviewed-by: Nathan Chancellor <nat...@kernel.org> Signed-off-by: Nick Desaulniers <ndesaulni...@google.com> --- Changes in v2: - Use ccflags-$(CONFIG_CC_IS_CLANG) as per Nathan. - Move that to be below the initial setting of ccflags-y as per Nathan. - Add Nathan's Suggested-by and Reviewed-by tags. - Update commit message slightly, including oneline. - Link to v1: https://lore.kernel.org/r/20230828-ppc_rerevert-v1-1-74f55b818...@google.com --- arch/powerpc/xmon/Makefile | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/powerpc/xmon/Makefile b/arch/powerpc/xmon/Makefile index 7705aa74a24d..682c7c0a6f77 100644 --- a/arch/powerpc/xmon/Makefile +++ b/arch/powerpc/xmon/Makefile @@ -12,6 +12,10 @@ ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) ccflags-$(CONFIG_PPC64) := $(NO_MINIMAL_TOC) +# Clang stores addresses on the stack causing the frame size to blow +# out. See https://github.com/ClangBuiltLinux/linux/issues/252 +ccflags-$(CONFIG_CC_IS_CLANG) += -Wframe-larger-than=4096 + obj-y += xmon.o nonstdio.o spr_access.o xmon_bpts.o ifdef CONFIG_XMON_DISASSEMBLY --- base-commit: 2ee82481c392eec06a7ef28df61b7f0d8e45be2e change-id: 20230828-ppc_rerevert-647427f04ce1 Best regards, -- Nick Desaulniers <ndesaulni...@google.com>
