HADOOP-11484. hadoop-mapreduce-client-nativetask fails to build on ARM AARCH64 due to x86 asm statements (Edward Nevill via Colin P. McCabe)

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -753,6 +753,9 @@ Release 2.7.0 - UNRELEASED
     HDFS-7610. Fix removal of dynamically added DN volumes (Lei (Eddy) Xu via
     Colin P. McCabe)
 
+    HADOOP-11484. hadoop-mapreduce-client-nativetask fails to build on ARM
+    AARCH64 due to x86 asm statements (Edward Nevill via Colin P. McCabe)
+
 Release 2.6.1 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/native/src/lib/primitives.h

@@ -97,11 +97,18 @@ inline void simple_memcpy(void * dest, const void * src, size_t len) {
  * little-endian to big-endian or vice versa
  */
 inline uint32_t bswap(uint32_t val) {
+#ifdef __aarch64__
+  __asm__("rev %w[dst], %w[src]" : [dst]"=r"(val) : [src]"r"(val));
+#else
   __asm__("bswap %0" : "=r" (val) : "0" (val));
+#endif
   return val;
 }
 
 inline uint64_t bswap64(uint64_t val) {
+#ifdef __aarch64__
+  __asm__("rev %[dst], %[src]" : [dst]"=r"(val) : [src]"r"(val));
+#else
 #ifdef __X64
   __asm__("bswapq %0" : "=r" (val) : "0" (val));
 #else
@@ -114,6 +121,7 @@ inline uint64_t bswap64(uint64_t val) {
 
   return (lower << 32) + higher;
 
+#endif
 #endif
   return val;
 }

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/native/src/util/Checksum.cc

@@ -579,6 +579,11 @@ const uint32_t CRC32C_T8_7[256] = {0x00000000, 0x493C7D27, 0x9278FA4E, 0xDB44876
     0xCF56CE31, 0x14124958, 0x5D2E347F, 0xE54C35A1, 0xAC704886, 0x7734CFEF, 0x3E08B2C8, 0xC451B7CC,
     0x8D6DCAEB, 0x56294D82, 0x1F1530A5};
 
+#ifdef __aarch64__
+// Awaiting HW implementation
+#define SOFTWARE_CRC
+#endif
+
 #ifndef SOFTWARE_CRC
 #define USE_HARDWARE_CRC32C 1
 #endif