From 9fe8d548fb1a7ea13a25aae88d0fd7ee42e19eab Mon Sep 17 00:00:00 2001
From: Masamichi Takagi <masamichi.takagi@gmail.com>
Date: Sun, 28 Oct 2012 00:40:12 +0900
Subject: [PATCH] increase PIN_SHIFT to 28 for reading large .so-file
 (temporary, we should use pread instead), and added system-call time

---
 kernel/syscall.c        | 12 ++++++++++++
 linux/executer/mcexec.c | 24 +++++++++++++++++++++++-
 2 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/kernel/syscall.c b/kernel/syscall.c
index 80c6bd90..fef8e312 100644
--- a/kernel/syscall.c
+++ b/kernel/syscall.c
@@ -179,6 +179,16 @@ SYSCALL_DECLARE(stat)
 	SYSCALL_FOOTER;
 }
 
+SYSCALL_DECLARE(time)
+{
+	SYSCALL_HEADER;
+    if(aal_mc_syscall_arg0(ctx)) {
+        SYSCALL_ARGS_1(MO);
+    } else {
+        SYSCALL_ARGS_1(D);
+    }
+	SYSCALL_FOOTER;
+}
 
 SYSCALL_DECLARE(gettimeofday)
 {
@@ -950,6 +960,7 @@ static long (*syscall_table[])(int, aal_mc_user_context_t *) = {
 	[110] = sys_getxid,
 	[111] = sys_getxid,
 	[158] = sys_arch_prctl,
+	[201] = sys_time,
 	[202] = sys_futex,
 	[203] = sys_sched_setaffinity,
 	[204] = sys_sched_getaffinity,
@@ -999,6 +1010,7 @@ static char *syscall_name[] = {
 	[110] = "sys_getpgid",
 	[111] = "sys_getppid",
 	[158] = "sys_arch_prctl",
+	[201] = "sys_time",
 	[202] = "sys_futex",
 	[203] = "sys_sched_setaffinity",
 	[204] = "sys_sched_getaffinity",
diff --git a/linux/executer/mcexec.c b/linux/executer/mcexec.c
index aae257eb..3df7342f 100644
--- a/linux/executer/mcexec.c
+++ b/linux/executer/mcexec.c
@@ -16,6 +16,7 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/utsname.h>
+#include <time.h>
 #include <sys/time.h>
 #include <signal.h>
 #include <sys/wait.h>
@@ -208,7 +209,7 @@ void print_desc(struct program_load_desc *desc)
 	}
 }
 
-#define PIN_SHIFT  24
+#define PIN_SHIFT  28
 #define PIN_SIZE  (1 << PIN_SHIFT)
 #define PIN_MASK  ~(unsigned long)(PIN_SIZE - 1)
 
@@ -591,6 +592,27 @@ int main_loop(int fd, int cpu, pthread_mutex_t *lock)
 			}
 			break;
 		
+            /*
+              glibc-2.14.90/sysdeps/unix/sysv/linux/x86_64/time.S
+             linux-2.6.34.13/arch/x86/kernel/vsyscall_64.c
+             /usr/include/time.h
+               /usr/include/bits/types.h
+                 /usr/include/bits/typesizes.h
+                   #define __TIME_T_TYPE           __SLONGWORD_TYPE
+            */
+		case __NR_time: {
+            time_t ret;
+            if(w.sr.args[0]) {
+                ret = time((time_t *)dma_buf);
+            } else {
+                ret = time(NULL);
+            }
+			SET_ERR(ret);
+            printf("time=%ld\n", ret);
+			do_syscall_return(fd, cpu, ret, 1, (unsigned long)dma_buf,
+			                  w.sr.args[0], sizeof(time_t));
+			break; }
+
 		case __NR_gettimeofday:
 			ret = gettimeofday((struct timeval *)dma_buf, NULL);
 			SET_ERR(ret);