From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761613AbcAKXdb (ORCPT ); Mon, 11 Jan 2016 18:33:31 -0500 Received: from casper.infradead.org ([85.118.1.10]:43200 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933091AbcAKXcV (ORCPT ); Mon, 11 Jan 2016 18:32:21 -0500 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, "Naveen N. Rao" , Sukadev Bhattiprolu , Wang Nan , Zefan Li , pi3orama@163.com, Arnaldo Carvalho de Melo Subject: [PATCH 09/12] perf bpf: Fix build breakage due to libbpf Date: Mon, 11 Jan 2016 20:31:58 -0300 Message-Id: <1452555121-21739-10-git-send-email-acme@kernel.org> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1452555121-21739-1-git-send-email-acme@kernel.org> References: <1452555121-21739-1-git-send-email-acme@kernel.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Naveen N. Rao" perf build is currently (v4.4-rc5) broken on powerpc: bpf.c:28:4: error: #error __NR_bpf not defined. libbpf does not support your arch. # error __NR_bpf not defined. libbpf does not support your arch. ^ Fix this by including tools/scripts/Makefile.arch for the proper $ARCH macro. While at it, remove redundant LP64 macro definition. Also, since libbpf require $(srctree) now, detect the path of srctree like perf. Signed-off-by: Naveen N. Rao Acked-by: Jiri Olsa Cc: Sukadev Bhattiprolu Cc: Wang Nan Cc: Zefan Li Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1452520124-2073-10-git-send-email-wangnan0@huawei.com [Use tools/scripts/Makefile.arch] Signed-off-by: Wang Nan Signed-off-by: Arnaldo Carvalho de Melo --- tools/lib/bpf/Makefile | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile index 84e0e986ade4..fc1bc75ae56d 100644 --- a/tools/lib/bpf/Makefile +++ b/tools/lib/bpf/Makefile @@ -6,6 +6,12 @@ BPF_EXTRAVERSION = 1 MAKEFLAGS += --no-print-directory +ifeq ($(srctree),) +srctree := $(patsubst %/,%,$(dir $(shell pwd))) +srctree := $(patsubst %/,%,$(dir $(srctree))) +srctree := $(patsubst %/,%,$(dir $(srctree))) +#$(info Determined 'srctree' to be $(srctree)) +endif # Makefiles suck: This macro sets a default value of $(2) for the # variable named by $(1), unless the variable has been set by @@ -31,7 +37,8 @@ INSTALL = install DESTDIR ?= DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))' -LP64 := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1) +include $(srctree)/tools/scripts/Makefile.arch + ifeq ($(LP64), 1) libdir_relative = lib64 else @@ -57,13 +64,6 @@ ifndef VERBOSE VERBOSE = 0 endif -ifeq ($(srctree),) -srctree := $(patsubst %/,%,$(dir $(shell pwd))) -srctree := $(patsubst %/,%,$(dir $(srctree))) -srctree := $(patsubst %/,%,$(dir $(srctree))) -#$(info Determined 'srctree' to be $(srctree)) -endif - FEATURE_USER = .libbpf FEATURE_TESTS = libelf libelf-getphdrnum libelf-mmap bpf FEATURE_DISPLAY = libelf bpf -- 2.1.0