From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757869AbZELPku (ORCPT ); Tue, 12 May 2009 11:40:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756225AbZELPjU (ORCPT ); Tue, 12 May 2009 11:39:20 -0400 Received: from mtagate6.de.ibm.com ([195.212.29.155]:38352 "EHLO mtagate6.de.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754952AbZELPjQ (ORCPT ); Tue, 12 May 2009 11:39:16 -0400 Message-Id: <20090512153900.784747296@linux.vnet.ibm.com> User-Agent: quilt/0.48-1 Date: Tue, 12 May 2009 17:38:55 +0200 From: Peter Oberparleiter To: linux-kernel@vger.kernel.org Cc: Andrew Morton , Andi Kleen , Huang Ying , Li Wei , Michael Ellerman , Ingo Molnar , Heiko Carstens , Martin Schwidefsky Subject: [PATCH 4/4] gcov: enable GCOV_PROFILE_ALL for x86_64 References: <20090512153851.939166562@linux.vnet.ibm.com> Content-Disposition: inline; filename=gcov-profile-all-x86_64.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Peter Oberparleiter Enable gcov profiling of the entire kernel on x86_64. Required changes include disabling profiling for: * arch/kernel/acpi/realmode and arch/kernel/boot/compressed: not linked to main kernel * arch/vdso, arch/kernel/vsyscall_64 and arch/kernel/hpet: profiling causes segfaults during boot (incompatible context) Signed-off-by: Peter Oberparleiter --- arch/x86/boot/Makefile | 1 + arch/x86/boot/compressed/Makefile | 1 + arch/x86/kernel/Makefile | 2 ++ arch/x86/kernel/acpi/realmode/Makefile | 1 + arch/x86/vdso/Makefile | 1 + kernel/gcov/Kconfig | 2 +- 6 files changed, 7 insertions(+), 1 deletion(-) Index: linux-2.6.30-rc5/kernel/gcov/Kconfig =================================================================== --- linux-2.6.30-rc5.orig/kernel/gcov/Kconfig +++ linux-2.6.30-rc5/kernel/gcov/Kconfig @@ -34,7 +34,7 @@ config GCOV_KERNEL config GCOV_PROFILE_ALL bool "Profile entire Kernel" depends on GCOV_KERNEL - depends on S390 || X86_32 + depends on S390 || X86 default n ---help--- This options activates profiling for the entire kernel. Index: linux-2.6.30-rc5/arch/x86/kernel/acpi/realmode/Makefile =================================================================== --- linux-2.6.30-rc5.orig/arch/x86/kernel/acpi/realmode/Makefile +++ linux-2.6.30-rc5/arch/x86/kernel/acpi/realmode/Makefile @@ -42,6 +42,7 @@ KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os $(call cc-option, -mpreferred-stack-boundary=2) KBUILD_CFLAGS += $(call cc-option, -m32) KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ +GCOV_PROFILE := n WAKEUP_OBJS = $(addprefix $(obj)/,$(wakeup-y)) Index: linux-2.6.30-rc5/arch/x86/boot/Makefile =================================================================== --- linux-2.6.30-rc5.orig/arch/x86/boot/Makefile +++ linux-2.6.30-rc5/arch/x86/boot/Makefile @@ -69,6 +69,7 @@ KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os $(call cc-option, -mpreferred-stack-boundary=2) KBUILD_CFLAGS += $(call cc-option, -m32) KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ +GCOV_PROFILE := n $(obj)/bzImage: asflags-y := $(SVGA_MODE) Index: linux-2.6.30-rc5/arch/x86/boot/compressed/Makefile =================================================================== --- linux-2.6.30-rc5.orig/arch/x86/boot/compressed/Makefile +++ linux-2.6.30-rc5/arch/x86/boot/compressed/Makefile @@ -15,6 +15,7 @@ KBUILD_CFLAGS += $(call cc-option,-ffree KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ +GCOV_PROFILE := n LDFLAGS := -m elf_$(UTS_MACHINE) LDFLAGS_vmlinux := -T Index: linux-2.6.30-rc5/arch/x86/vdso/Makefile =================================================================== --- linux-2.6.30-rc5.orig/arch/x86/vdso/Makefile +++ linux-2.6.30-rc5/arch/x86/vdso/Makefile @@ -123,6 +123,7 @@ quiet_cmd_vdso = VDSO $@ -Wl,-T,$(filter %.lds,$^) $(filter %.o,$^) VDSO_LDFLAGS = -fPIC -shared $(call ld-option, -Wl$(comma)--hash-style=sysv) +GCOV_PROFILE := n # # Install the unstripped copy of vdso*.so listed in $(vdso-install-y). Index: linux-2.6.30-rc5/arch/x86/kernel/Makefile =================================================================== --- linux-2.6.30-rc5.orig/arch/x86/kernel/Makefile +++ linux-2.6.30-rc5/arch/x86/kernel/Makefile @@ -24,6 +24,8 @@ CFLAGS_vsyscall_64.o := $(PROFILING) -g0 CFLAGS_hpet.o := $(nostackp) CFLAGS_tsc.o := $(nostackp) CFLAGS_paravirt.o := $(nostackp) +GCOV_PROFILE_vsyscall_64.o := n +GCOV_PROFILE_hpet.o := n obj-y := process_$(BITS).o signal.o entry_$(BITS).o obj-y += traps.o irq.o irq_$(BITS).o dumpstack_$(BITS).o