Hi everyone,
Here is my implementation of the 'time' system call which uses
getElapsedTime() to calculate the current time. As before, comments welcome.
Cheers
Tim
--
The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.
diff --git a/src/kern/linux/linux.hh b/src/kern/linux/linux.hh
--- a/src/kern/linux/linux.hh
+++ b/src/kern/linux/linux.hh
@@ -62,6 +62,7 @@
typedef uint64_t size_t;
typedef uint64_t off_t;
typedef int64_t time_t;
+ typedef int64_t clock_t;
typedef uint32_t uid_t;
typedef uint32_t gid_t;
//@}
diff --git a/src/sim/syscall_emul.hh b/src/sim/syscall_emul.hh
--- a/src/sim/syscall_emul.hh
+++ b/src/sim/syscall_emul.hh
@@ -1132,6 +1132,25 @@
return curTick;
}
+/// Target time() function.
+template <class OS>
+SyscallReturn
+timeFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
+ ThreadContext *tc)
+{
+ typename OS::time_t sec, usec;
+ getElapsedTime(sec, usec);
+ sec += seconds_since_epoch;
+
+ Addr taddr = (Addr)process->getSyscallArg(tc, 0);
+ if(taddr != 0) {
+ typename OS::time_t t = sec;
+ t = htog(t);
+ TranslatingPort *p = tc->getMemPort();
+ p->writeBlob(taddr, (uint8_t*)&t, (int)sizeof(typename OS::time_t));
+ }
+ return sec;
+}
#endif // __SIM_SYSCALL_EMUL_HH__
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