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-rw-r--r--src/thread/i386/__set_thread_area.s13
1 files changed, 9 insertions, 4 deletions
diff --git a/src/thread/i386/__set_thread_area.s b/src/thread/i386/__set_thread_area.s
index 1d852689..3a558fb0 100644
--- a/src/thread/i386/__set_thread_area.s
+++ b/src/thread/i386/__set_thread_area.s
@@ -6,10 +6,10 @@ __set_thread_area:
 	push $0x51
 	push $0xfffff
 	push 16(%esp)
-	xor %edx,%edx
-	mov %gs,%dx
-	sub $3,%edx
-	sar $3,%edx
+	call 1f
+1:	addl $4f-1b,(%esp)
+	pop %ecx
+	mov (%ecx),%edx
 	push %edx
 	mov %esp,%ebx
 	xor %eax,%eax
@@ -18,6 +18,7 @@ __set_thread_area:
 	testl %eax,%eax
 	jnz 2f
 	movl (%esp),%edx
+	movl %edx,(%ecx)
 	leal 3(,%edx,8),%edx
 3:	movw %dx,%gs
 1:
@@ -38,3 +39,7 @@ __set_thread_area:
 	mov $7,%dl
 	inc %al
 	jmp 3b
+
+.data
+	.align 4
+4:	.long -1