From 55b049fc342376a370f96abdbeb63133d92373ef Mon Sep 17 00:00:00 2001
From: Ji <24671280+XieJiSS@users.noreply.github.com>
Date: Thu, 25 Nov 2021 15:06:30 +0800
Subject: [PATCH 1/2] fix: build on risc-v

Patch is modified from https://reviews.llvm.org/file/data/du5ol5zctyqw53ma7dwz/PHID-FILE-knherxziu4tl4erti5ab/file
---
 .../range_tree/lib/portability/toku_time.h      | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/utilities/transactions/lock/range/range_tree/lib/portability/toku_time.h b/utilities/transactions/lock/range/range_tree/lib/portability/toku_time.h
index 225e3fa72119..c2a42288a93f 100644
--- a/utilities/transactions/lock/range/range_tree/lib/portability/toku_time.h
+++ b/utilities/transactions/lock/range/range_tree/lib/portability/toku_time.h
@@ -137,6 +137,23 @@ static inline tokutime_t toku_time_now(void) {
   uint64_t result;
   asm volatile("stckf %0" : "=Q"(result) : : "cc");
   return result;
+#elif defined(__riscv) && __riscv_xlen == 32
+  uint32_t cycles_lo, cycles_hi0, cycles_hi1;
+  // Implemented in assembly because Clang insisted on branching.
+  asm volatile(
+    "rdcycleh %0\n"
+    "rdcycle %1\n"
+    "rdcycleh %2\n"
+    "sub %0, %0, %2\n"
+    "seqz %0, %0\n"
+    "sub %0, zero, %0\n"
+    "and %1, %1, %0\n"
+    : "=r"(cycles_hi0), "=r"(cycles_lo), "=r"(cycles_hi1));
+  return (static_cast<uint64_t>(cycles_hi1) << 32) | cycles_lo;
+#elif defined(__riscv) && __riscv_xlen == 64
+  uint64_t cycles;
+  asm volatile("rdcycle %0" : "=r"(cycles));
+  return cycles;
 #else
 #error No timer implementation for this platform
 #endif

From 1e730ed46f677592bca2712bda55be65604b2da7 Mon Sep 17 00:00:00 2001
From: XieJiSS <24671280+XieJiSS@users.noreply.github.com>
Date: Wed, 16 Feb 2022 14:37:44 +0800
Subject: [PATCH 2/2] format: edit risc-v asm code for linter

---
 .../range/range_tree/lib/portability/toku_time.h | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/utilities/transactions/lock/range/range_tree/lib/portability/toku_time.h b/utilities/transactions/lock/range/range_tree/lib/portability/toku_time.h
index c2a42288a93f..37fde032356e 100644
--- a/utilities/transactions/lock/range/range_tree/lib/portability/toku_time.h
+++ b/utilities/transactions/lock/range/range_tree/lib/portability/toku_time.h
@@ -141,14 +141,14 @@ static inline tokutime_t toku_time_now(void) {
   uint32_t cycles_lo, cycles_hi0, cycles_hi1;
   // Implemented in assembly because Clang insisted on branching.
   asm volatile(
-    "rdcycleh %0\n"
-    "rdcycle %1\n"
-    "rdcycleh %2\n"
-    "sub %0, %0, %2\n"
-    "seqz %0, %0\n"
-    "sub %0, zero, %0\n"
-    "and %1, %1, %0\n"
-    : "=r"(cycles_hi0), "=r"(cycles_lo), "=r"(cycles_hi1));
+      "rdcycleh %0\n"
+      "rdcycle %1\n"
+      "rdcycleh %2\n"
+      "sub %0, %0, %2\n"
+      "seqz %0, %0\n"
+      "sub %0, zero, %0\n"
+      "and %1, %1, %0\n"
+      : "=r"(cycles_hi0), "=r"(cycles_lo), "=r"(cycles_hi1));
   return (static_cast<uint64_t>(cycles_hi1) << 32) | cycles_lo;
 #elif defined(__riscv) && __riscv_xlen == 64
   uint64_t cycles;