From: Cooper Qu <cooper...@linux.alibaba.com>
Tested and pushed.
The SYNC operations are implemented as library functions, not
NSN patterns. As a result, the HAVE defines for the patterns are
not defined. We need to define them to generate the corresponding
__GCC_HAVE_SYNC_COMPARE_AND_SWAP_* and __GCC_ATOMIC_*_LOCK_FREE
defines.
gcc/
* config/csky/csky-linux-elf.h (HAVE_sync_compare_and_swapqi):
Defined.
(HAVE_sync_compare_and_swaphi): Likewise.
(HAVE_sync_compare_and_swapsi): Likewise.
---
gcc/config/csky/csky-linux-elf.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/gcc/config/csky/csky-linux-elf.h b/gcc/config/csky/csky-linux-elf.h
index 58a1f3978b1..e94eb8c579e 100644
--- a/gcc/config/csky/csky-linux-elf.h
+++ b/gcc/config/csky/csky-linux-elf.h
@@ -133,3 +133,13 @@
#ifdef IN_LIBGCC2
extern int cacheflush (void *__addr, const int __nbytes, const int __op);
#endif
+
+/* The SYNC operations are implemented as library functions, not
+ INSN patterns. As a result, the HAVE defines for the patterns are
+ not defined. We need to define them to generate the corresponding
+ __GCC_HAVE_SYNC_COMPARE_AND_SWAP_* and __GCC_ATOMIC_*_LOCK_FREE
+ defines. */
+
+#define HAVE_sync_compare_and_swapqi 1
+#define HAVE_sync_compare_and_swaphi 1
+#define HAVE_sync_compare_and_swapsi 1
--
2.26.2
