From 6c60db8ce99eabdbfcbe0f78a50817494142e39e Mon Sep 17 00:00:00 2001 From: "Timothy M. Jones" Date: Sat, 24 Oct 2009 10:53:57 -0700 Subject: syscall: Implementation of the times system call --- src/sim/syscall_emul.hh | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'src/sim') diff --git a/src/sim/syscall_emul.hh b/src/sim/syscall_emul.hh index e45a6c797..ce7c7fa87 100644 --- a/src/sim/syscall_emul.hh +++ b/src/sim/syscall_emul.hh @@ -1131,6 +1131,30 @@ getrusageFunc(SyscallDesc *desc, int callnum, LiveProcess *process, return 0; } +/// Target times() function. +template +SyscallReturn +timesFunc(SyscallDesc *desc, int callnum, LiveProcess *process, + ThreadContext *tc) +{ + TypedBufferArg bufp(process->getSyscallArg(tc, 0)); + + // Fill in the time structure (in clocks) + int64_t clocks = curTick * OS::_SC_CLK_TCK / Clock::Int::s; + bufp->tms_utime = clocks; + bufp->tms_stime = 0; + bufp->tms_cutime = 0; + bufp->tms_cstime = 0; + + // Convert to host endianness + bufp->tms_utime = htog(bufp->tms_utime); + + // Write back + bufp.copyOut(tc->getMemPort()); + + // Return clock ticks since system boot + return clocks; +} -- cgit v1.2.3