linux-kernel - [tip:perf/core] perf s390: Always build with -fPIC

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Date:   Wed, 6 Dec 2017 08:38:12 -0800
From:   tip-bot for Hendrik Brueckner <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     tmricht@...ux.vnet.ibm.com, acme@...hat.com,
        heiko.carstens@...ibm.com, linux-s390@...r.kernel.org,
        linux-kernel@...r.kernel.org, jonathan.hermann@...ibm.com,
        schwidefsky@...ibm.com, hpa@...or.com,
        brueckner@...ux.vnet.ibm.com, mingo@...nel.org, tglx@...utronix.de
Subject: [tip:perf/core] perf s390: Always build with -fPIC

Commit-ID:  1dc4ddf112a408e607a073d951b962b6c6e2bd6c
Gitweb:     https://git.kernel.org/tip/1dc4ddf112a408e607a073d951b962b6c6e2bd6c
Author:     Hendrik Brueckner <brueckner@...ux.vnet.ibm.com>
AuthorDate: Thu, 30 Nov 2017 09:49:25 +0100
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Tue, 5 Dec 2017 10:24:32 -0300

perf s390: Always build with -fPIC

On s390, object files must be compiled with position-indepedent code in
order to be incrementally linked or linked to shared libraries.
Therefore, add -fPIC to the CFLAGS for s390 to ensure each object file
is built properly.

Reported-by: Jonathan Hermann <jonathan.hermann@...ibm.com>
Signed-off-by: Hendrik Brueckner <brueckner@...ux.vnet.ibm.com>
Cc: Heiko Carstens <heiko.carstens@...ibm.com>
Cc: Martin Schwidefsky <schwidefsky@...ibm.com>
Cc: Thomas Richter <tmricht@...ux.vnet.ibm.com>
Cc: linux s390 list <linux-s390@...r.kernel.org>
LPU-Reference: 1512031765-9382-1-git-send-email-brueckner@...ux.vnet.ibm.com
Link: https://lkml.kernel.org/n/tip-a8wga8hrl0d0r84cal96fmgv@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/Makefile.config | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 2c437ba..bf86c09 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -41,6 +41,7 @@ ifeq ($(SRCARCH),x86)
     LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind
   endif
   NO_PERF_REGS := 0
+  CFLAGS += -fPIC
 endif
 
 ifeq ($(SRCARCH),arm)