linux-kernel - Re: [PATCH/RFC] Re: linux-next: build failure after merge of the luto-misc tree

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Message-ID: <20160721131248.GH18962@kernel.org>
Date:	Thu, 21 Jul 2016 10:12:48 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	Josh Poimboeuf <jpoimboe@...hat.com>,
	Andy Lutomirski <luto@...capital.net>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...nel.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	"linux-next@...r.kernel.org" <linux-next@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH/RFC] Re: linux-next: build failure after merge of the
 luto-misc tree

Em Thu, Jul 21, 2016 at 09:29:50AM +1000, Stephen Rothwell escreveu:
> Hi Arnaldo,
> 
> On Tue, 19 Jul 2016 23:52:02 -0300 Arnaldo Carvalho de Melo <acme@...nel.org> wrote:
> >
> > Humm, it seems that the compiler used is not the cross one, but the
> > native, check if, say, __powerpc__ is defined.
> 
> Yes, __powerpc__ is defined (unsuprisingly).

Maybe this one?

diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile
index 1f75b0a046cc..3500fcf7bd47 100644
--- a/tools/objtool/Makefile
+++ b/tools/objtool/Makefile
@@ -1,10 +1,14 @@
 include ../scripts/Makefile.include
 
+HOSTARCH=$(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \
+                                -e s/sun4u/sparc64/ \
+                                -e s/arm.*/arm/ -e s/sa110/arm/ \
+                                -e s/s390x/s390/ -e s/parisc64/parisc/ \
+                                -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
+                                -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ )
+
 ifndef ($(ARCH))
-ARCH ?= $(shell uname -m)
-ifeq ($(ARCH),x86_64)
-ARCH := x86
-endif
+ARCH ?= $(HOSTARCH)
 endif
 
 # always use the host compiler
@@ -26,7 +30,7 @@ OBJTOOL_IN := $(OBJTOOL)-in.o
 
 all: $(OBJTOOL)
 
-INCLUDES := -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(ARCH)/include/uapi
+INCLUDES := -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi
 CFLAGS   += -Wall -Werror $(EXTRA_WARNINGS) -fomit-frame-pointer -O2 -g $(INCLUDES)
 LDFLAGS  += -lelf $(LIBSUBCMD)