[m5-dev] [PATCH 3 of 9] Implementation of the time system call

[Timothy M. Jones]

# HG changeset patch
# User Timothy M. Jones <tjon...@inf.ed.ac.uk>
# Date 1255004953 -3600
# Node ID 3f8045e58321a3d55381ecbe2f5ce4cc3e9b0570
# Parent  7435b8dcb32f7952491c8aa531051ab2c664979c
Implementation of the time system call.

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
@@ -1155,6 +1155,25 @@
     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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Scotland, with registration number SC005336.

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