[B][C][SRU][PATCH 1/1] selftests/powerpc/pmu: Link ebb tests with -no-pie

Po-Hsu Lin po-hsu.lin at canonical.com
Wed Apr 24 06:49:35 UTC 2019

From: Joel Stanley <joel at jms.id.au>

BugLink: https://bugs.launchpad.net/bugs/1812805

When running the ebb tests after building on a ppc64le Ubuntu machine:

 $ pmu/ebb/reg_access_test: error while loading shared libraries:
 R_PPC64_ADDR16_HI reloc at 0x000000013a965130 for symbol `' out of

This is because the Ubuntu toolchain builds has PIE enabled by default.
Change it to be always off instead.

Signed-off-by: Joel Stanley <joel at jms.id.au>
Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>
(cherry picked from commit 98415da03ae6559dc62899fd31e55e194779c45b)
Signed-off-by: Po-Hsu Lin <po-hsu.lin at canonical.com>
 tools/testing/selftests/powerpc/pmu/ebb/Makefile | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/testing/selftests/powerpc/pmu/ebb/Makefile b/tools/testing/selftests/powerpc/pmu/ebb/Makefile
index c4e64bc..2035100 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/Makefile
+++ b/tools/testing/selftests/powerpc/pmu/ebb/Makefile
@@ -5,6 +5,9 @@ noarg:
 # The EBB handler is 64-bit code and everything links against it
 CFLAGS += -m64
+# Toolchains may build PIE by default which breaks the assembly
+LDFLAGS += -no-pie
 TEST_GEN_PROGS := reg_access_test event_attributes_test cycles_test	\
 	 cycles_with_freeze_test pmc56_overflow_test		\
 	 ebb_vs_cpu_event_test cpu_event_vs_ebb_test		\

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