From e66909f76ffc172d3e64691a492f5a548e1d7b04 Mon Sep 17 00:00:00 2001
From: hinus <hinus@163.com>
Date: Fri, 6 Aug 2021 11:30:20 +0800
Subject: [PATCH] Title: Some unimplemented sys calls. Issue:
 https://gitee.com/hinus/linux_kernel_011/issues/I446CV Description: System
 calls unimplemented, such as break, ptrace.

---
 include/linux/sys.h | 42 +++++++++++++++++++++---------------------
 kernel/sys.c        | 44 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 65 insertions(+), 21 deletions(-)

diff --git a/include/linux/sys.h b/include/linux/sys.h
index 291b74a..14ab8c4 100644
--- a/include/linux/sys.h
+++ b/include/linux/sys.h
@@ -15,7 +15,7 @@ extern int sys_time();
 //extern int sys_mknod();
 extern int sys_chmod();
 extern int sys_chown();
-//extern int sys_break();
+extern int sys_break();
 //extern int sys_stat();
 //extern int sys_lseek();
 extern int sys_getpid();
@@ -24,37 +24,37 @@ extern int sys_getpid();
 //extern int sys_setuid();
 extern int sys_getuid();
 //extern int sys_stime();
-//extern int sys_ptrace();
+extern int sys_ptrace();
 //extern int sys_alarm();
 extern int sys_fstat();
 extern int sys_pause();
 //extern int sys_utime();
-//extern int sys_stty();
-//extern int sys_gtty();
+extern int sys_stty();
+extern int sys_gtty();
 //extern int sys_access();
 extern int sys_nice();
-//extern int sys_ftime();
+extern int sys_ftime();
 extern int sys_sync();
 //extern int sys_kill();
-//extern int sys_rename();
+extern int sys_rename();
 extern int sys_mkdir();
 extern int sys_rmdir();
 extern int sys_dup();
 //extern int sys_pipe();
 //extern int sys_times();
-//extern int sys_prof();
+extern int sys_prof();
 extern int sys_brk();
 //extern int sys_setgid();
 extern int sys_getgid();
 extern int sys_signal();
 extern int sys_geteuid();
 extern int sys_getegid();
-//extern int sys_acct();
-//extern int sys_phys();
-//extern int sys_lock();
+extern int sys_acct();
+extern int sys_phys();
+extern int sys_lock();
 extern int sys_ioctl();
 //extern int sys_fcntl();
-//extern int sys_mpx();
+extern int sys_mpx();
 //extern int sys_setpgid();
 extern int sys_ulimit();
 //extern int sys_uname();
@@ -106,7 +106,7 @@ fn_ptr sys_call_table[] = {
     sys_chmod,
 
     sys_chown,
-    0, //sys_break,
+    sys_break,
     0, //sys_stat,
     0, //sys_lseek,
     sys_getpid,
@@ -116,28 +116,28 @@ fn_ptr sys_call_table[] = {
     0, //sys_setuid,
     sys_getuid,
     0, //sys_stime,
-    0, //sys_ptrace,
+    sys_ptrace,
     0, //sys_alarm,
 
     sys_fstat,
     sys_pause,
     0, //sys_utime,
-    0, //sys_stty,
-    0, //sys_gtty,
+    sys_stty,
+    sys_gtty,
     0, //sys_access,
 
     sys_nice,
     0, //sys_ftime,
     sys_sync,
     0, //sys_kill,
-    0, //sys_rename,
+    sys_rename,
     sys_mkdir,
 
     sys_rmdir,
     sys_dup,
     0, //    sys_pipe,
     0, //    sys_times,
-    0, //    sys_prof,
+    sys_prof,
     sys_brk,
     0, //    sys_setgid,
 
@@ -145,13 +145,13 @@ fn_ptr sys_call_table[] = {
     sys_signal,
     sys_geteuid,
     sys_getegid,
-    0, //    sys_acct,
-    0, //    sys_phys,
+    sys_acct,
+    sys_phys,
 
-    0, //    sys_lock,
+    sys_lock,
     sys_ioctl,
     0, //    sys_fcntl,
-    0, //    sys_mpx,
+    sys_mpx,
     0, //    sys_setpgid,
     sys_ulimit,
 
diff --git a/kernel/sys.c b/kernel/sys.c
index c853687..43297e2 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -7,6 +7,50 @@
 #include <asm/segment.h>
 #include <string.h>
 
+int sys_ftime() {
+    return -ENOSYS;
+}
+
+int sys_break() {
+    return -ENOSYS;
+}
+
+int sys_ptrace() {
+    return -ENOSYS;
+}
+
+int sys_stty() {
+    return -ENOSYS;
+}
+
+int sys_gtty() {
+    return -ENOSYS;
+}
+
+int sys_prof() {
+    return -ENOSYS;
+}
+
+int sys_rename() {
+    return -ENOSYS;
+}
+
+int sys_acct() {
+    return -ENOSYS;
+}
+
+int sys_phys() {
+    return -ENOSYS;
+}
+
+int sys_lock() {
+    return -ENOSYS;
+}
+
+int sys_mpx() {
+    return -ENOSYS;
+}
+
 int sys_time(long * tloc) {
     int i;
     i = CURRENT_TIME;
-- 
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