patch-2.3.17 linux/arch/i386/kernel/entry.S

• Lines: 31
• Date: Sat Sep 4 13:06:08 1999
• Orig file: v2.3.16/linux/arch/i386/kernel/entry.S
• Orig date: Thu Jul 29 15:18:50 1999

diff -u --recursive --new-file v2.3.16/linux/arch/i386/kernel/entry.S linux/arch/i386/kernel/entry.S
@@ -145,7 +145,30 @@
 	andl $-8192,%ebx	# GET_CURRENT
 	movl exec_domain(%ebx),%edx	# Get the execution domain
 	movl 4(%edx),%edx	# Get the lcall7 handler for the domain
+	pushl $0x7
 	call *%edx
+	addl $4, %esp
+	popl %eax
+	jmp ret_from_sys_call
+
+ENTRY(lcall27)
+	pushfl			# We get a different stack layout with call gates,
+	pushl %eax		# which has to be cleaned up later..
+	SAVE_ALL
+	movl EIP(%esp),%eax	# due to call gates, this is eflags, not eip..
+	movl CS(%esp),%edx	# this is eip..
+	movl EFLAGS(%esp),%ecx	# and this is cs..
+	movl %eax,EFLAGS(%esp)	#
+	movl %edx,EIP(%esp)	# Now we move them to their "normal" places
+	movl %ecx,CS(%esp)	#
+	movl %esp,%ebx
+	pushl %ebx
+	andl $-8192,%ebx	# GET_CURRENT
+	movl exec_domain(%ebx),%edx	# Get the execution domain
+	movl 4(%edx),%edx	# Get the lcall7 handler for the domain
+	pushl $0x27
+	call *%edx
+	addl $4, %esp
 	popl %eax
 	jmp ret_from_sys_call