diff --git a/arch/x86/Makefile_32.cpu b/arch/x86/Makefile_32.cpu index 30e9a264f69d8f2216b3a2e80806e0c79b0063cc..df7fdf811997b7c9e5b9bbcb814c1daf7b7068e8 100644 --- a/arch/x86/Makefile_32.cpu +++ b/arch/x86/Makefile_32.cpu @@ -46,6 +46,12 @@ cflags-$(CONFIG_MGEODEGX1) += -march=pentium-mmx # cpu entries cflags-$(CONFIG_X86_GENERIC) += $(call tune,generic,$(call tune,i686)) +# Work around the pentium-mmx code generator madness of gcc4.4.x which +# does stack alignment by generating horrible code _before_ the mcount +# prologue (push %ebp, mov %esp, %ebp) which breaks the function graph +# tracer assumptions +cflags-$(CONFIG_FUNCTION_GRAPH_TRACER) += $(call cc-option,-mtune=generic) + # Bug fix for binutils: this option is required in order to keep # binutils from generating NOPL instructions against our will. ifneq ($(CONFIG_X86_P6_NOP),y)