[OE-core] [PATCH 1/2] libunwind: fix build by linking with bfd instead of gold

[Andreas Müller]

works around:
<native-sysroot>/ld: error: Gperf-simple.o: cannot make copy relocation for protected symbol '_Uarm_local_addr_space', defined in ../src/.libs/libunwind-arm.so
collect2: error: ld returned 1 exit status
Makefile:1038: recipe for target 'Gperf-simple' failed
make[1]: *** [Gperf-simple] Error 1
make[1]: *** Waiting for unfinished jobs....
<...>
<native-sysroot>/ld: error: Lperf-simple.o: cannot make copy relocation for protected symbol '_ULarm_local_addr_space', defined in ../src/.libs/libunwind.so
collect2: error: ld returned 1 exit status
Makefile:1094: recipe for target 'Lperf-simple' failed
make[1]: *** [Lperf-simple] Error 1
<...>
ERROR: oe_runmake failed
<native-sysroot>/ld: error: Gperf-trace.o: cannot make copy relocation for protected symbol '_Uarm_local_addr_space', defined in ../src/.libs/libunwind-arm.so
collect2: error: ld returned 1 exit status
Makefile:1042: recipe for target 'Gperf-trace' failed
make[1]: *** [Gperf-trace] Error 1
<native-sysroot>/ld: error: Lperf-trace.o: cannot make copy relocation for protected symbol '_ULarm_local_addr_space', defined in ../src/.libs/libunwind.so
collect2: error: ld returned 1 exit status
Makefile:1098: recipe for target 'Lperf-trace' failed
make[1]: *** [Lperf-trace] Error 1
<...>
<native-sysroot>/ld: error: test-coredump-unwind.o: cannot make copy relocation for protected symbol '_UCD_accessors', defined in ../src/.libs/libunwind-coredump.so
collect2: error: ld returned 1 exit status
Makefile:1186: recipe for target 'test-coredump-unwind' failed

Signed-off-by: Andreas Müller <schnitzeltony at googlemail.com>
---
 meta/recipes-support/libunwind/libunwind_git.bb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/meta/recipes-support/libunwind/libunwind_git.bb b/meta/recipes-support/libunwind/libunwind_git.bb
index cd4cb89..4249430 100644
--- a/meta/recipes-support/libunwind/libunwind_git.bb
+++ b/meta/recipes-support/libunwind/libunwind_git.bb
@@ -26,3 +26,4 @@ SECURITY_CFLAGS_append_aarch64 = " -fPIE"
 
 S = "${WORKDIR}/git"
 
+LDFLAGS += "-Wl,-z,relro,-z,now ${@bb.utils.contains('DISTRO_FEATURES', 'ld-is-gold', ' -fuse-ld=bfd ', '', d)}"
-- 
2.5.5