--- linux/kernel/system_call.s	2018/04/24 18:00:13	1.1.1.1
+++ linux/kernel/system_call.s	2018/04/24 18:02:17	1.1.1.3
@@ -45,9 +45,9 @@ signal	= 12
 restorer = 16		# address of info-restorer
 sig_fn	= 20		# table of 32 signal addresses
 
-nr_system_calls = 67
+nr_system_calls = 319
 
-.globl _system_call,_sys_fork,_timer_interrupt,_hd_interrupt,_sys_execve
+.globl system_call,sys_fork,timer_interrupt,hd_interrupt,sys_execve
 
 .align 2
 bad_sys_call:
@@ -56,9 +56,9 @@ bad_sys_call:
 .align 2
 reschedule:
 	pushl $ret_from_sys_call
-	jmp _schedule
+	jmp schedule
 .align 2
-_system_call:
+system_call:
 	cmpl $nr_system_calls-1,%eax
 	ja bad_sys_call
 	push %ds
@@ -72,16 +72,24 @@ _system_call:
 	mov %dx,%es
 	movl $0x17,%edx		# fs points to local data space
 	mov %dx,%fs
-	call _sys_call_table(,%eax,4)
+
+	movl sys_call_table(,%eax,4),%edx	# if sys_null
+	cmpl $sys_null,%edx					# then the syscall is not
+	jne 1f								# implemented.
+	popl  %edx							# 1st argument is syscall nr
+	pushl %eax
+1:
+
+	call *sys_call_table(,%eax,4)
 	pushl %eax
-	movl _current,%eax
+	movl current,%eax
 	cmpl $0,state(%eax)		# state
 	jne reschedule
 	cmpl $0,counter(%eax)		# counter
 	je reschedule
 ret_from_sys_call:
-	movl _current,%eax		# task[0] cannot have signals
-	cmpl _task,%eax
+	movl current,%eax		# task[0] cannot have signals
+	cmpl task,%eax
 	je 3f
 	movl CS(%esp),%ebx		# was old code segment supervisor
 	testl $3,%ebx			# mode? If so - don't check signals
@@ -106,7 +114,7 @@ ret_from_sys_call:
 	pushl %ecx
 	pushl $28
 	pushl %edx
-	call _verify_area
+	call verify_area
 	popl %edx
 	addl $4,%esp
 	popl %ecx
@@ -137,12 +145,12 @@ default_signal:
 	cmpl $SIG_CHLD,%ecx
 	je 2b
 	pushl %ecx
-	call _do_exit		# remember to set bit 7 when dumping core
+	call do_exit		# remember to set bit 7 when dumping core
 	addl $4,%esp
 	jmp 3b
 
 .align 2
-_timer_interrupt:
+timer_interrupt:
 	push %ds		# save ds,es and put kernel data space
 	push %es		# into them. %fs is used by _system_call
 	push %fs
@@ -155,27 +163,27 @@ _timer_interrupt:
 	mov %ax,%es
 	movl $0x17,%eax
 	mov %ax,%fs
-	incl _jiffies
+	incl jiffies
 	movb $0x20,%al		# EOI to interrupt controller #1
 	outb %al,$0x20
 	movl CS(%esp),%eax
 	andl $3,%eax		# %eax is CPL (0 or 3, 0=supervisor)
 	pushl %eax
-	call _do_timer		# 'do_timer(long CPL)' does everything from
+	call do_timer		# 'do_timer(long CPL)' does everything from
 	addl $4,%esp		# task switching to accounting ...
 	jmp ret_from_sys_call
 
 .align 2
-_sys_execve:
+sys_execve:
 	lea EIP(%esp),%eax
 	pushl %eax
-	call _do_execve
+	call do_execve
 	addl $4,%esp
 	ret
 
 .align 2
-_sys_fork:
-	call _find_empty_process
+sys_fork:
+	call find_empty_process
 	testl %eax,%eax
 	js 1f
 	push %gs
@@ -183,11 +191,11 @@ _sys_fork:
 	pushl %edi
 	pushl %ebp
 	pushl %eax
-	call _copy_process
+	call copy_process
 	addl $20,%esp
 1:	ret
 
-_hd_interrupt:
+hd_interrupt:
 	pushl %eax
 	pushl %ecx
 	pushl %edx
@@ -204,10 +212,10 @@ _hd_interrupt:
 	jmp 1f			# give port chance to breathe
 1:	jmp 1f
 1:	outb %al,$0xA0		# same to controller #2
-	movl _do_hd,%eax
+	movl do_hd,%eax
 	testl %eax,%eax
 	jne 1f
-	movl $_unexpected_hd_interrupt,%eax
+	movl $unexpected_hd_interrupt,%eax
 1:	call *%eax		# "interesting" way of handling intr.
 	pop %fs
 	pop %es