diff options
Diffstat (limited to 'src/runtime/rt_time.C')
| -rw-r--r-- | src/runtime/rt_time.C | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/runtime/rt_time.C b/src/runtime/rt_time.C index e222a3718..66032586a 100644 --- a/src/runtime/rt_time.C +++ b/src/runtime/rt_time.C @@ -25,6 +25,8 @@ #include <sys/time.h> #include <runtime/interface.h> +#define BITS_32_TO_63_MASK 0x00000000FFFFFFFF + void nanosleep(uint64_t sec, uint64_t nsec) { if (g_hostInterfaces && g_hostInterfaces->nanosleep) @@ -36,9 +38,19 @@ void nanosleep(uint64_t sec, uint64_t nsec) int clock_gettime(clockid_t i_clkId, timespec_t* o_tp) { int l_rc = -1; + if (g_hostInterfaces && g_hostInterfaces->clock_gettime) { l_rc = g_hostInterfaces->clock_gettime(i_clkId, o_tp); + + // If the back-half (bits 32:63) are all 0's then the + // nanoseconds are stored in the first 32 bits of the tv_nsec + // member of the timespec_t struct. We must shift over so later + // hostboot code interprets this correctly + if( (o_tp->tv_nsec & BITS_32_TO_63_MASK) == 0x0) + { + o_tp->tv_nsec = o_tp->tv_nsec >> 32; + } } return l_rc; } |
