Author: dim
Date: Wed Sep 9 20:48:57 2020
New Revision: 365509
URL: https://svnweb.freebsd.org/changeset/base/365509
Log:
Follow-up r364753 by enabling compiler-rt's atomic implementation only
for clang, as it uses clang specific builtins, and does not compile
correctly with gcc. Note that gcc packages usually come with their own
libatomic, providing these primitives.
PR: 230888
MFC after: 3 days
X-MFC-With: r364753
Modified:
head/lib/libcompiler_rt/Makefile.inc
Modified: head/lib/libcompiler_rt/Makefile.inc
==============================================================================
--- head/lib/libcompiler_rt/Makefile.inc Wed Sep 9 19:07:34 2020
(r365508)
+++ head/lib/libcompiler_rt/Makefile.inc Wed Sep 9 20:48:57 2020
(r365509)
@@ -18,7 +18,6 @@ SRCF+= ashldi3
SRCF+= ashlti3
SRCF+= ashrdi3
SRCF+= ashrti3
-SRCF+= atomic
SRCF+= bswapdi2
SRCF+= bswapsi2
SRCF+= clear_cache
@@ -122,6 +121,12 @@ SRCF+= udivti3
SRCF+= umoddi3
SRCF+= umodsi3
SRCF+= umodti3
+
+# Enable compiler-rt's atomic implementation only for clang, as it uses clang
+# specific builtins, and gcc packages usually come with their own libatomic.
+.if "${COMPILER_TYPE}" == "clang"
+SRCF+= atomic
+.endif
# Avoid using SSE2 instructions on i386, if unsupported.
.if ${MACHINE_CPUARCH} == "i386" && empty(MACHINE_CPU:Msse2)
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