Support s390/s390x in performance schema's cycle-counting functions. Filed upstream at http://bugs.mysql.com/bug.php?id=59953 diff --git a/include/my_rdtsc.h b/include/my_rdtsc.h index 65f7df1..a28f470 100644 --- a/include/my_rdtsc.h +++ b/include/my_rdtsc.h @@ -128,5 +128,6 @@ void my_timer_init(MY_TIMER_INFO *mti); #define MY_TIMER_ROUTINE_GETSYSTEMTIMEASFILETIME 26 #define MY_TIMER_ROUTINE_ASM_SUNPRO_X86_64 27 #define MY_TIMER_ROUTINE_ASM_AARCH64 28 +#define MY_TIMER_ROUTINE_ASM_S390 29 #endif diff --git a/mysys/my_rdtsc.cc b/mysys/my_rdtsc.cc index ec8e855..c3408b1 100644 --- a/mysys/my_rdtsc.cc +++ b/mysys/my_rdtsc.cc @@ -204,6 +204,13 @@ ulonglong my_timer_cycles(void) { __asm __volatile__("mrs %[rt],cntvct_el0" : [rt] "=r"(result)); return result; } +#elif defined(__GNUC__) && defined(__s390__) + /* covers both s390 and s390x */ + { + ulonglong result; + __asm__ __volatile__ ("stck %0" : "=Q" (result) : : "cc"); + return result; + } #elif defined(HAVE_SYS_TIMES_H) && defined(HAVE_GETHRTIME) /* gethrtime may appear as either cycle or nanosecond counter */ return (ulonglong)gethrtime(); @@ -505,6 +512,8 @@ void my_timer_init(MY_TIMER_INFO *mti) { mti->cycles.routine = MY_TIMER_ROUTINE_ASM_GCC_SPARC32; #elif defined(__GNUC__) && defined(__aarch64__) mti->cycles.routine = MY_TIMER_ROUTINE_ASM_AARCH64; +#elif defined(__GNUC__) && defined(__s390__) + mti->cycles.routine = MY_TIMER_ROUTINE_ASM_S390; #elif defined(HAVE_SYS_TIMES_H) && defined(HAVE_GETHRTIME) mti->cycles.routine = MY_TIMER_ROUTINE_GETHRTIME; #else