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Implement clock_nanosleep syscall

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EnderIce2 2024-03-20 17:37:04 +02:00
parent 0cc40bafe8
commit 717a98810a
Signed by untrusted user who does not match committer: enderice2
GPG Key ID: EACC3AD603BAB4DD
1 changed files with 53 additions and 1 deletions
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54
syscalls/linux.cpp
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@ -1796,6 +1796,58 @@ static int linux_clock_gettime(SysFrm *, clockid_t clockid, struct timespec *tp)
return 0; return 0;
} }
static int linux_clock_nanosleep(SysFrm *, clockid_t clockid, int flags,
const struct timespec *request,
struct timespec *remain)
{
PCB *pcb = thisProcess;
Memory::VirtualMemoryArea *vma = pcb->vma;
const timespec *pRequest = vma->UserCheckAndGetAddress(request);
timespec *pRemain = vma->UserCheckAndGetAddress(remain);
if (pRequest == nullptr)
return -EFAULT;
UNUSED(pRemain);
UNUSED(flags);
switch (clockid)
{
case CLOCK_REALTIME:
case CLOCK_MONOTONIC:
{
uint64_t time = TimeManager->GetCounter();
uint64_t rqTime = pRequest->tv_sec * Time::ConvertUnit(Time::Seconds) +
pRequest->tv_nsec * Time::ConvertUnit(Time::Nanoseconds);
debug("Sleeping for %ld", rqTime - time);
if (rqTime > time)
pcb->GetContext()->Sleep(rqTime - time);
break;
}
case CLOCK_PROCESS_CPUTIME_ID:
case CLOCK_THREAD_CPUTIME_ID:
case CLOCK_MONOTONIC_RAW:
case CLOCK_REALTIME_COARSE:
case CLOCK_MONOTONIC_COARSE:
case CLOCK_BOOTTIME:
case CLOCK_REALTIME_ALARM:
case CLOCK_BOOTTIME_ALARM:
case CLOCK_SGI_CYCLE:
case CLOCK_TAI:
{
fixme("clockid %d is stub", clockid);
return -ENOSYS;
}
default:
{
warn("Invalid clockid %#lx", clockid);
return -EINVAL;
}
}
return 0;
}
/* https://man7.org/linux/man-pages/man2/exit_group.2.html */ /* https://man7.org/linux/man-pages/man2/exit_group.2.html */
static __noreturn void linux_exit_group(SysFrm *sf, int status) static __noreturn void linux_exit_group(SysFrm *sf, int status)
{ {
@ -2192,7 +2244,7 @@ static SyscallData LinuxSyscallsTableAMD64[] = {
[__NR_amd64_clock_settime] = {"clock_settime", (void *)nullptr}, [__NR_amd64_clock_settime] = {"clock_settime", (void *)nullptr},
[__NR_amd64_clock_gettime] = {"clock_gettime", (void *)linux_clock_gettime}, [__NR_amd64_clock_gettime] = {"clock_gettime", (void *)linux_clock_gettime},
[__NR_amd64_clock_getres] = {"clock_getres", (void *)nullptr}, [__NR_amd64_clock_getres] = {"clock_getres", (void *)nullptr},
[__NR_amd64_clock_nanosleep] = {"clock_nanosleep", (void *)nullptr}, [__NR_amd64_clock_nanosleep] = {"clock_nanosleep", (void *)linux_clock_nanosleep},
[__NR_amd64_exit_group] = {"exit_group", (void *)linux_exit_group}, [__NR_amd64_exit_group] = {"exit_group", (void *)linux_exit_group},
[__NR_amd64_epoll_wait] = {"epoll_wait", (void *)nullptr}, [__NR_amd64_epoll_wait] = {"epoll_wait", (void *)nullptr},
[__NR_amd64_epoll_ctl] = {"epoll_ctl", (void *)nullptr}, [__NR_amd64_epoll_ctl] = {"epoll_ctl", (void *)nullptr},