diff options
authorKhem Raj <>2016-08-07 23:47:58 -0700
committerRichard Purdie <>2016-08-10 10:45:31 +0100
commit2e9a88a21d21f2f71769899888fbbc994bc708f0 (patch)
parenta18457e3318da21b642018897a0df29cb543deea (diff)
world-broken: Add libunwind for musl/arm
gcc and libunwind race and when libunwind wins results are build fails for gcc as described this is only seen on musl/arm since on musl /usr/include is search before gcc fixed headers and unwind.h is in fixed headers. So it works ok on glibc but not on musl due to reversed search order. Signed-off-by: Khem Raj <> Signed-off-by: Ross Burton <>
1 files changed, 7 insertions, 0 deletions
diff --git a/meta/conf/distro/include/ b/meta/conf/distro/include/
index a5f6371d31..d4bdddfcfe 100644
--- a/meta/conf/distro/include/
+++ b/meta/conf/distro/include/
@@ -47,3 +47,10 @@ EXCLUDE_FROM_WORLD_pn-perf_libc-musl = "1"
# error: 'RTLD_NEXT' was not declared in this scope
EXCLUDE_FROM_WORLD_pn-gcc-sanitizers_libc-musl = "1"
+# gcc fails to build when libuwind is staged before building gcc since
+# it then finds the unwind.h header from libunwind and not from libgcc
+# and on arm specially they are different since libgcc defines some functions
+# as macros which are functions in libunwind and it fails during linking
+# libbacktrace/backtrace.c:76: undefined reference to `_Unwind_GetIP'
+EXCLUDE_FROM_WORLD_pn-libunwind_libc-musl_arm = "1"