Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760366AbbFCNLB (ORCPT ); Wed, 3 Jun 2015 09:11:01 -0400 Received: from verein.lst.de ([213.95.11.211]:52417 "EHLO newverein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760349AbbFCNKx (ORCPT ); Wed, 3 Jun 2015 09:10:53 -0400 Date: Wed, 3 Jun 2015 15:10:51 +0200 From: Torsten Duwe To: Michael Ellerman , ppc-dev Cc: Jiri Kosina , Linux Kernel Mailing List , Steven Rostedt Subject: Re: [PATCH 2/4] ppc64 ftrace configuration Message-ID: <20150603131051.GC19424@lst.de> References: <20150513161100.GA1619@lst.de> <1431653687.13498.1.camel@ellerman.id.au> <20150515084542.GA20453@suse.de> <20150516080534.GA27059@lst.de> <1432006027.8339.3.camel@ellerman.id.au> <20150603130257.GA19424@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150603130257.GA19424@lst.de> User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1857 Lines: 57 Add Kconfig variables and Makefile magic for ftrace with -mprofile-kernel Signed-off-by: Torsten Duwe diff --git a/Makefile b/Makefile index 3d16bcc..bbd5e87 100644 --- a/Makefile +++ b/Makefile @@ -733,7 +733,10 @@ export CC_FLAGS_FTRACE ifdef CONFIG_HAVE_FENTRY CC_USING_FENTRY := $(call cc-option, -mfentry -DCC_USING_FENTRY) endif -KBUILD_CFLAGS += $(CC_FLAGS_FTRACE) $(CC_USING_FENTRY) +ifdef CONFIG_HAVE_MPROFILE_KERNEL +CC_USING_MPROFILE_KERNEL := $(call cc-option, -mprofile-kernel -DCC_USING_MPROFILE_KERNEL) +endif +KBUILD_CFLAGS += $(CC_FLAGS_FTRACE) $(CC_USING_FENTRY) $(CC_USING_MPROFILE_KERNEL) KBUILD_AFLAGS += $(CC_USING_FENTRY) ifdef CONFIG_DYNAMIC_FTRACE ifdef CONFIG_HAVE_C_RECORDMCOUNT diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 22b0940..566f204 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -94,8 +94,10 @@ config PPC select OF_RESERVED_MEM select HAVE_FTRACE_MCOUNT_RECORD select HAVE_DYNAMIC_FTRACE + select HAVE_DYNAMIC_FTRACE_WITH_REGS select HAVE_FUNCTION_TRACER select HAVE_FUNCTION_GRAPH_TRACER + select HAVE_MPROFILE_KERNEL select SYSCTL_EXCEPTION_TRACE select ARCH_WANT_OPTIONAL_GPIOLIB select VIRT_TO_BUS if !PPC64 diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index a5da09c..dd53f3d 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 -- 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/