Package: ruby-pg-query
Version: 2.2.1-2
Severity: wishlist
Tags: patch
User: debian-de...@lists.debian.org
Usertags: loongarch64
Dear ruby-pg-query maintainers,
Fixed a compilation error with ruby-pg-query due to lack of loongarch
spinlock support.
thanks,
Zang Ruochen
From 1e02735872612b4653f89ac0b0117ed9076d299f Mon Sep 17 00:00:00 2001
From: Zang Ruochen <zangruoc...@loongson.cn>
Date: Sun, 8 Oct 2023 02:07:14 +0000
Subject: [PATCH] add loongarch spinlock support.
---
ext/pg_query/include/storage/s_lock.h | 39 +++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/ext/pg_query/include/storage/s_lock.h
b/ext/pg_query/include/storage/s_lock.h
index 6b368a5..393f0ab 100644
--- a/ext/pg_query/include/storage/s_lock.h
+++ b/ext/pg_query/include/storage/s_lock.h
@@ -696,6 +696,45 @@ do \
#endif /* __mips__ && !__sgi */
+#if defined(__loongarch__) /* loongarch */
+#define HAS_TEST_AND_SET
+
+typedef unsigned int slock_t;
+
+#define TAS(lock) tas(lock)
+
+static __inline__ int
+tas(volatile slock_t *lock)
+{
+ register volatile slock_t *_l = lock;
+ register int _res;
+ register int _tmp;
+
+ __asm__ __volatile__(
+ " ll.w %0, %2 \n"
+ " ori %1, %0, 1 \n"
+ " sc.w %1, %2 \n"
+ " xori %1, %1, 1 \n"
+ " or %0, %0, %1 \n"
+ " dbar 0 \n"
+: "=&r" (_res), "=&r" (_tmp), "+ZC" (*_l)
+: /* no inputs */
+: "memory");
+ return _res;
+}
+
+#define S_UNLOCK(lock) \
+do \
+{ \
+ __asm__ __volatile__( \
+ " dbar 0 \n" \
+: /* no outputs */ \
+: /* no inputs */ \
+: "memory"); \
+ *((volatile slock_t *) (lock)) = 0; \
+} while (0)
+
+#endif /* __loongarch__ */
#if defined(__m32r__) && defined(HAVE_SYS_TAS_H) /* Renesas' M32R */
#define HAS_TEST_AND_SET
--
2.40.1
