compiler-rt: backport a patch fixing ARMv5 cross-compile

Compiler-rt cross-compile for ARMv5 fails because D99282 made it an error if DMB
is used for any pre-ARMv6 targets. More specifically, the "#error only supported
on ARMv6+" added in D99282 will cause compilation to fail when any source file
which includes assembly.h are compiled for pre-ARMv6 targets. Since the only
place where DMB is used is syn-ops.h (which is only included by
arm/sync_fetch_and_* and these files are excluded from being built for older
targets), this patch moves the definition there to avoid the issues described
above.

Signed-off-by: Ming Liu <liu.ming50@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/recipes-devtools/clang/common.inc b/recipes-devtools/clang/common.inc
index b61d239..7cbd7f4 100644
--- a/recipes-devtools/clang/common.inc
+++ b/recipes-devtools/clang/common.inc
@@ -45,6 +45,7 @@ SRC_URI = "\
     file://0033-lldb-Link-with-libatomic-on-x86.patch \
     file://0034-clang-exclude-openembedded-distributions-from-settin.patch \
     file://0035-compiler-rt-Enable-__int128-for-ppc32.patch \
+    file://0036-compiler-rt-builtins-Move-DMB-definition-to-syn-opsh.patch \
     "
 # Fallback to no-PIE if not set
 GCCPIE ??= ""