Messages in this thread Patch in this message |  | | | Date | Wed, 26 Nov 2008 16:58:26 -0500 | | From | Steven Rostedt <> | | Subject | [PATCH 5/5] powerpc/ppc32: static ftrace fixes for PPC32 |
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From: Steven Rostedt <rostedt@gollum.(none)>
Impact: fix for PowerPC 32 code
There were some early init code that was not safe for static ftrace to boot on my PowerBook. This code must only use relative addressing, and static mcount performs a compare of the ftrace_trace_function pointer, and gets that with an absolute address. In the early init boot up code, this will cause a fault.
This patch removes tracing from the files containing the offending functions.
Signed-off-by: Steven Rostedt <rostedt@gollum.(none)> --- arch/powerpc/kernel/Makefile | 1 + arch/powerpc/lib/Makefile | 3 +++ 2 files changed, 4 insertions(+), 0 deletions(-) diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index 92673b4..d17edb4 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -17,6 +17,7 @@ ifdef CONFIG_FUNCTION_TRACER CFLAGS_REMOVE_cputable.o = -pg -mno-sched-epilog CFLAGS_REMOVE_prom_init.o = -pg -mno-sched-epilog CFLAGS_REMOVE_btext.o = -pg -mno-sched-epilog +CFLAGS_REMOVE_prom.o = -pg -mno-sched-epilog ifdef CONFIG_DYNAMIC_FTRACE # dynamic ftrace setup. diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile index d69912c..8db3527 100644 --- a/arch/powerpc/lib/Makefile +++ b/arch/powerpc/lib/Makefile @@ -6,6 +6,9 @@ ifeq ($(CONFIG_PPC64),y) EXTRA_CFLAGS += -mno-minimal-toc endif +CFLAGS_REMOVE_code-patching.o = -pg +CFLAGS_REMOVE_feature-fixups.o = -pg + obj-y := string.o alloc.o \ checksum_$(CONFIG_WORD_SIZE).o obj-$(CONFIG_PPC32) += div64.o copy_32.o crtsavres.o -- 1.5.6.5 --
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