From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751957AbbKYR3Y (ORCPT ); Wed, 25 Nov 2015 12:29:24 -0500 Received: from verein.lst.de ([213.95.11.211]:60711 "EHLO newverein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751723AbbKYR3S (ORCPT ); Wed, 25 Nov 2015 12:29:18 -0500 In-Reply-To: <20151125172608.9588569260@newverein.lst.de> References: <20151125172608.9588569260@newverein.lst.de> From: Torsten Duwe Date: Wed, 25 Nov 2015 17:37:33 +0100 Subject: [PATCH v4 4/9] ppc64 ftrace_with_regs configuration variables To: Steven Rostedt , Michael Ellerman Cc: Jiri Kosina , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, live-patching@vger.kernel.org Message-Id: <20151125172916.9D50269260@newverein.lst.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Makefile: - globally use -mprofile-kernel in case it's configured. * arch/powerpc/Kconfig / kernel/trace/Kconfig: - declare that ppc64le HAVE_MPROFILE_KERNEL and HAVE_DYNAMIC_FTRACE_WITH_REGS, and use it. Signed-off-by: Torsten Duwe --- arch/powerpc/Kconfig | 2 ++ arch/powerpc/Makefile | 7 +++++++ kernel/trace/Kconfig | 5 +++++ 3 files changed, 14 insertions(+) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 9a7057e..55fd59e 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -97,8 +97,10 @@ config PPC select OF_RESERVED_MEM select HAVE_FTRACE_MCOUNT_RECORD select HAVE_DYNAMIC_FTRACE + select HAVE_DYNAMIC_FTRACE_WITH_REGS if PPC64 && CPU_LITTLE_ENDIAN select HAVE_FUNCTION_TRACER select HAVE_FUNCTION_GRAPH_TRACER + select HAVE_MPROFILE_KERNEL if PPC64 && CPU_LITTLE_ENDIAN select SYSCTL_EXCEPTION_TRACE select ARCH_WANT_OPTIONAL_GPIOLIB select VIRT_TO_BUS if !PPC64 diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index b9b4af2..25d0034 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -133,6 +133,13 @@ else CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=powerpc64 endif +ifeq ($(CONFIG_PPC64),y) +ifdef CONFIG_HAVE_MPROFILE_KERNEL +CC_FLAGS_FTRACE := -pg $(call cc-option,-mprofile-kernel) +KBUILD_CPPFLAGS += -DCC_USING_MPROFILE_KERNEL +endif +endif + CFLAGS-$(CONFIG_CELL_CPU) += $(call cc-option,-mcpu=cell) CFLAGS-$(CONFIG_POWER4_CPU) += $(call cc-option,-mcpu=power4) CFLAGS-$(CONFIG_POWER5_CPU) += $(call cc-option,-mcpu=power5) diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index 1153c43..dbcb635 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -52,6 +52,11 @@ config HAVE_FENTRY help Arch supports the gcc options -pg with -mfentry +config HAVE_MPROFILE_KERNEL + bool + help + Arch supports the gcc options -pg with -mprofile-kernel + config HAVE_C_RECORDMCOUNT bool help -- 1.8.5.6