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

tip-bot for Hendrik Brueckner
2017-12-28T15:36:03Z

Commit-ID: a9a3f1d18a6c9ccf89728e23474645aa91e2f4f1
Gitweb: https://git.kernel.org/tip/a9a3f1d18a6c9ccf89728e23474645aa91e2f4f1
Author: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
AuthorDate: Wed, 13 Dec 2017 17:46:54 -0300
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Wed, 27 Dec 2017 12:15:57 -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@de.ibm.com>
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Thomas Richter <tmricht@linux.vnet.ibm.com>
Cc: linux s390 list <linux-s390@vger.kernel.org>
Link: https://lkml.kernel.org/r/20171207080951.GC4889@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/Makefile.config | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index eb6bd99..f050f38 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -58,7 +58,7 @@ endif
ifeq ($(ARCH),s390)
NO_PERF_REGS := 0
NO_SYSCALL_TABLE := 0
- CFLAGS += -I$(OUTPUT)arch/s390/include/generated
+ CFLAGS += -fPIC -I$(OUTPUT)arch/s390/include/generated
endif

ifeq ($(NO_PERF_REGS),0)