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HADOOP-14922. Build of Mapreduce Native Task module fails with unknown opcode "bswap". Contributed by Anup Halarnkar.

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This commit is contained in:
Masatake Iwasaki 2021-05-21 01:36:26 +00:00
parent e4062ad027
commit 0d59500e8c
1 changed files with 4 additions and 0 deletions
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4
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/native/src/lib/primitives.h
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@ -99,6 +99,8 @@ inline void simple_memcpy(void * dest, const void * src, size_t len) {
inline uint32_t bswap(uint32_t val) {
#ifdef __aarch64__
__asm__("rev %w[dst], %w[src]" : [dst]"=r"(val) : [src]"r"(val));
#elif defined(__ppc64__)||(__PPC64__)||(__powerpc64__)
return __builtin_bswap32(val);
#else
__asm__("bswap %0" : "=r" (val) : "0" (val));
#endif
@ -108,6 +110,8 @@ inline uint32_t bswap(uint32_t val) {
inline uint64_t bswap64(uint64_t val) {
#ifdef __aarch64__
__asm__("rev %[dst], %[src]" : [dst]"=r"(val) : [src]"r"(val));
#elif defined(__ppc64__)||(__PPC64__)||(__powerpc64__)
return __builtin_bswap64(val);
#else
#ifdef __X64
__asm__("bswapq %0" : "=r" (val) : "0" (val));