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set semihosting sys_clock time origin

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Koen De Vleeschauwer 2020-05-13 13:54:18 +02:00 committed by UweBonnes
parent 499309f648
commit 54ee00b0f6
1 changed files with 6 additions and 0 deletions
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6
src/target/cortexm.c
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@ -71,6 +71,10 @@ static target_addr cortexm_check_watch(target *t);
static int cortexm_hostio_request(target *t); static int cortexm_hostio_request(target *t);
#if !defined(PC_HOSTED)
static uint32_t time0_sec = UINT32_MAX; /* sys_clock time origin */
#endif
struct cortexm_priv { struct cortexm_priv {
ADIv5_AP_t *ap; ADIv5_AP_t *ap;
bool stepping; bool stepping;
@ -1206,6 +1210,8 @@ static int cortexm_hostio_request(target *t)
if (syscall == SYS_TIME) { /* SYS_TIME: time in seconds */ if (syscall == SYS_TIME) { /* SYS_TIME: time in seconds */
ret = sec; ret = sec;
} else { /* SYS_CLOCK: time in hundredths of seconds */ } else { /* SYS_CLOCK: time in hundredths of seconds */
if (time0_sec > sec) time0_sec = sec; /* set sys_clock time origin */
sec -= time0_sec;
uint64_t csec64 = (sec * 1000000ull + usec)/10000ull; uint64_t csec64 = (sec * 1000000ull + usec)/10000ull;
uint32_t csec = csec64 & 0x7fffffff; uint32_t csec = csec64 & 0x7fffffff;
ret = csec; ret = csec;