Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754816AbbLDP2h (ORCPT ); Fri, 4 Dec 2015 10:28:37 -0500 Received: from verein.lst.de ([213.95.11.211]:39687 "EHLO newverein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753393AbbLDP2d (ORCPT ); Fri, 4 Dec 2015 10:28:33 -0500 In-Reply-To: <20151204152419.28E0D691D2@newverein.lst.de> References: <20151204152419.28E0D691D2@newverein.lst.de> From: Torsten Duwe Date: Fri, 4 Dec 2015 14:50:51 +0100 Subject: [PATCH v5 4/9] ppc64 ftrace_with_regs configuration variables To: Steven Rostedt , Michael Ellerman Cc: Jiri Kosina , Denis Kirjanov , Petr Mladek , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, live-patching@vger.kernel.org Message-Id: <20151204152832.16121691D3@newverein.lst.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2325 Lines: 74 * Makefile: - globally use -mprofile-kernel in case it's configured and available. * 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 | 10 ++++++++++ kernel/trace/Kconfig | 5 +++++ 3 files changed, 17 insertions(+) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index db49e0d..89b1a2a 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 96efd82..2f9b527 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -133,6 +133,16 @@ else CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=powerpc64 endif +ifeq ($(CONFIG_PPC64),y) +ifdef CONFIG_HAVE_MPROFILE_KERNEL +CC_USING_MPROFILE_KERNEL := $(call cc-option,-mprofile-kernel) +ifdef CC_USING_MPROFILE_KERNEL +CC_FLAGS_FTRACE := -pg $(CC_USING_MPROFILE_KERNEL) +KBUILD_CPPFLAGS += -DCC_USING_MPROFILE_KERNEL +endif +endif +endif + CFLAGS-$(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 e45db6b..a138f6d 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/