From 90bae4d99beb1f31d8bde7c438a36e8875ae6090 Mon Sep 17 00:00:00 2001 From: Nick Desaulniers Date: Mon, 28 Aug 2023 13:39:06 -0700 Subject: powerpc/xmon: Reapply "Relax frame size for clang" This is a manual revert of commit 7f3c5d099b6f ("Revert "powerpc/xmon: Relax frame size for clang"") but using ccflags-$(CONFIG_CC_IS_CLANG) which is shorter. Turns out that this is reproducible still under specific compiler versions (mea culpa: I did not test every supported version of clang), and even a few randconfigs bots found. We'll have to revisit this again in the future, for now back this out. Reported-by: Nathan Chancellor Closes: https://github.com/ClangBuiltLinux/linux/issues/252#issuecomment-1690371256 Reported-by: kernel test robot Closes: https://lore.kernel.org/llvm/202308260344.Vc4Giuk7-lkp@intel.com/ Suggested-by: Nathan Chancellor Reviewed-by: Nathan Chancellor Signed-off-by: Nick Desaulniers Signed-off-by: Michael Ellerman Link: https://msgid.link/20230828-ppc_rerevert-v2-1-46b71a3656c6@google.com --- arch/powerpc/xmon/Makefile | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/powerpc/xmon/Makefile b/arch/powerpc/xmon/Makefile index 7705aa74a24d..682c7c0a6f77 100644 --- a/arch/powerpc/xmon/Makefile +++ b/arch/powerpc/xmon/Makefile @@ -12,6 +12,10 @@ ccflags-remove-$(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 -- cgit v1.2.3