[MIPS] Temporarily disable Mips shared-textrel errors
Clang++ for Mips and Mips64 generates read-only exception unwind
tables that trigger DT_TEXTREL warnings at link time. Until Clang
is fixed, ignore those performance warnings instead of failing the build.
With this patch, Mips clang++ can be (optionally) used when building
libdeqp.
NDK's Mips llvm has been using an alternate temporary fix, marking the
.gcc_exception_table section as read-write for Mips only:
https://android-review.googlesource.com/#/c/119660/
A permanent fix using a read-only exception table is pending upstream:
http://reviews.llvm.org/D9669
Change-Id: Ie0cd7da398acbe45dbe39adc251e7fd5b5ca1445
diff --git a/core/clang/mips.mk b/core/clang/mips.mk
index 08daf40..70832a3 100644
--- a/core/clang/mips.mk
+++ b/core/clang/mips.mk
@@ -14,6 +14,11 @@
-msynci \
-mno-fused-madd
+# Temporary workaround for Mips clang++ problem, creates
+# relocated ptrs in read-only pic .gcc_exception_table;
+# permanent fix pending at http://reviews.llvm.org/D9669
+CLANG_CONFIG_mips_UNKNOWN_CFLAGS += -Wl,--warn-shared-textrel
+
# We don't have any mips flags to substitute yet.
define subst-clang-incompatible-mips-flags
$(1)