From 77b6310acfd57e500211784806bb60c76c9a6cb2 Mon Sep 17 00:00:00 2001
From: Huang Yang <huangyang@loongson.cn>
Date: Mon, 22 Apr 2024 03:23:18 +0000
Subject: [PATCH] greatsql 8.0.32 add loongarch support

---
 extra/duktape/duktape-2.7.0/src/duk_config.h  | 12 ++++++++++
 .../source/i18n/double-conversion-utils.h     |  3 ++-
 storage/ndb/include/portlib/mt-asm.h          | 24 +++++++++++++++++++
 3 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/extra/duktape/duktape-2.7.0/src/duk_config.h b/extra/duktape/duktape-2.7.0/src/duk_config.h
index 77cddc1d..2c919ea9 100644
--- a/extra/duktape/duktape-2.7.0/src/duk_config.h
+++ b/extra/duktape/duktape-2.7.0/src/duk_config.h
@@ -42,6 +42,7 @@
  *      - SPARC 64-bit
  *      - RISC-V 32-bit
  *      - RISC-V 64-bit
+ *      - loongarch 64-bit
  *      - SuperH
  *      - Motorola 68k
  *      - Emscripten
@@ -303,6 +304,11 @@
 #endif
 #endif  /* __riscv */
 
+/* loongarch64 */
+#if defined(__loongarch64)
+#define DUK_F_LOONGARCH64
+#endif
+
 /* SuperH */
 #if defined(__sh__) || \
     defined(__sh1__) || defined(__SH1__) || \
@@ -991,6 +997,12 @@
 #define DUK_USE_BYTEORDER 1
 #undef DUK_USE_PACKED_TVAL
 #define DUK_F_PACKED_TVAL_PROVIDED
+#elif defined(DUK_F_LOONGARCH64)
+/* --- loongarch 64-bit --- */
+#define DUK_USE_ARCH_STRING "loongarch64"
+#define DUK_USE_BYTEORDER 1
+#undef DUK_USE_PACKED_TVAL
+#define DUK_F_PACKED_TVAL_PROVIDED
 #elif defined(DUK_F_SUPERH)
 /* --- SuperH --- */
 #define DUK_USE_ARCH_STRING "sh"
diff --git a/extra/icu/icu-release-69-1/source/i18n/double-conversion-utils.h b/extra/icu/icu-release-69-1/source/i18n/double-conversion-utils.h
index c9374636..8d95fe89 100644
--- a/extra/icu/icu-release-69-1/source/i18n/double-conversion-utils.h
+++ b/extra/icu/icu-release-69-1/source/i18n/double-conversion-utils.h
@@ -128,7 +128,8 @@ int main(int argc, char** argv) {
     defined(__riscv) || defined(__e2k__) || \
     defined(__or1k__) || defined(__arc__) || \
     defined(__microblaze__) || defined(__XTENSA__) || \
-    defined(__EMSCRIPTEN__) || defined(__wasm32__)
+    defined(__EMSCRIPTEN__) || defined(__wasm32__) || \
+    defined(__loongarch64)
 #define DOUBLE_CONVERSION_CORRECT_DOUBLE_OPERATIONS 1
 #elif defined(__mc68000__) || \
     defined(__pnacl__) || defined(__native_client__)
diff --git a/storage/ndb/include/portlib/mt-asm.h b/storage/ndb/include/portlib/mt-asm.h
index 418b8d9c..f2518eeb 100644
--- a/storage/ndb/include/portlib/mt-asm.h
+++ b/storage/ndb/include/portlib/mt-asm.h
@@ -156,6 +156,30 @@ xcng(volatile unsigned * addr, int val)
 #define wmb() std::atomic_thread_fence(std::memory_order_seq_cst)
 
 #define cpu_pause()  __asm__ __volatile__ ("yield")
+#elif defined(__loongarch64)
+
+#define NDB_HAVE_MB
+#define NDB_HAVE_RMB
+#define NDB_HAVE_WMB
+//#define NDB_HAVE_XCNG
+
+// details frome kernel-6.9 arch/loongarch/include/asm/barrier.h
+
+#define DBAR(hint) __asm__ __volatile__("dbar %0 " : : "I"(hint) : "memory")
+
+#define crwrw       0b00000
+#define cr_r_       0b00101
+#define c_w_w       0b01010
+
+#define c_sync()    DBAR(crwrw)
+#define c_rsync()   DBAR(cr_r_)
+#define c_wsync()   DBAR(c_w_w)
+
+#define mb()        c_sync()
+#define rmb()       c_rsync()
+#define wmb()       c_wsync()
+
+#define cpu_pause()  __asm__ __volatile__ ("nop")
 
 #else
 #define NDB_NO_ASM "Unsupported architecture (gcc)"
-- 
2.43.0