This implements the time syscall. It should probably somehow
flush the changed value back out to the memory subsystem, I wasn't sure
how to do that when it's an int (and not a structure) being written out.
diff -r 1cc467793e1c src/arch/x86/linux/linux.hh
--- a/src/arch/x86/linux/linux.hh Mon Sep 21 23:16:48 2009 -0400
+++ b/src/arch/x86/linux/linux.hh Mon Sep 21 23:37:15 2009 -0400
@@ -127,6 +127,8 @@
uint64_t mem_unit; /* Memory unit size in bytes */
} tgt_sysinfo;
+ typedef uint64_t timet;
+
};
class X86Linux32 : public Linux
@@ -191,6 +193,9 @@
uint32_t freehigh; /* Available high memory size */
uint32_t mem_unit; /* Memory unit size in bytes */
} tgt_sysinfo;
+
+ typedef uint32_t timet;
+
};
#endif
diff -r 1cc467793e1c src/arch/x86/linux/syscalls.cc
--- a/src/arch/x86/linux/syscalls.cc Mon Sep 21 23:16:48 2009 -0400
+++ b/src/arch/x86/linux/syscalls.cc Mon Sep 21 23:37:15 2009 -0400
@@ -429,7 +429,7 @@
/* 198 */ SyscallDesc("lremovexattr", unimplementedFunc),
/* 199 */ SyscallDesc("fremovexattr", unimplementedFunc),
/* 200 */ SyscallDesc("tkill", unimplementedFunc),
- /* 201 */ SyscallDesc("time", unimplementedFunc),
+ /* 201 */ SyscallDesc("time", timeFunc<X86Linux64>),
/* 202 */ SyscallDesc("futex", ignoreFunc),
/* 203 */ SyscallDesc("sched_setaffinity", unimplementedFunc),
/* 204 */ SyscallDesc("sched_getaffinity", unimplementedFunc),
@@ -520,7 +520,7 @@
/* 10 */ SyscallDesc("unlink", unimplementedFunc),
/* 11 */ SyscallDesc("execve", unimplementedFunc),
/* 12 */ SyscallDesc("chdir", unimplementedFunc),
- /* 13 */ SyscallDesc("time", unimplementedFunc),
+ /* 13 */ SyscallDesc("time", timeFunc<X86Linux32>),
/* 14 */ SyscallDesc("mknod", unimplementedFunc),
/* 15 */ SyscallDesc("chmod", unimplementedFunc),
/* 16 */ SyscallDesc("lchown", unimplementedFunc),
diff -r 1cc467793e1c src/sim/syscall_emul.hh
--- a/src/sim/syscall_emul.hh Mon Sep 21 23:16:48 2009 -0400
+++ b/src/sim/syscall_emul.hh Mon Sep 21 23:37:15 2009 -0400
@@ -1034,6 +1034,24 @@
return 0;
}
+/// Target time() handler.
+template <class OS>
+SyscallReturn
+timeFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
+ ThreadContext *tc)
+{
+ TypedBufferArg<typename OS::timet> tp(process->getSyscallArg(tc, 0));
+
+ struct timeval hostTimeval;
+ getElapsedTime(hostTimeval.tv_sec, hostTimeval.tv_usec);
+
+ if (tp!=NULL) {
+ *tp=seconds_since_epoch+hostTimeval.tv_sec;
+ }
+ return seconds_since_epoch+hostTimeval.tv_sec;
+
+}
+
/// Target utimes() handler.
template <class OS>
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