[src/trunk]: src/sys/arch/amd64/amd64 Remove dumb debug code and outdated com...

[maxv <maxv%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/9f00858edb68
branches:  trunk
changeset: 355662:9f00858edb68
user:      maxv <maxv%NetBSD.org@localhost>
date:      Tue Aug 08 17:00:42 2017 +0000

description:
Remove dumb debug code and outdated comment.

diffstat:

 sys/arch/amd64/amd64/locore.S |  10 +---------
 1 files changed, 1 insertions(+), 9 deletions(-)

diffs (31 lines):

diff -r 0a3e08f6f3ac -r 9f00858edb68 sys/arch/amd64/amd64/locore.S
--- a/sys/arch/amd64/amd64/locore.S     Tue Aug 08 16:57:32 2017 +0000
+++ b/sys/arch/amd64/amd64/locore.S     Tue Aug 08 17:00:42 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: locore.S,v 1.124 2017/07/01 10:44:42 maxv Exp $        */
+/*     $NetBSD: locore.S,v 1.125 2017/08/08 17:00:42 maxv Exp $        */
 
 /*
  * Copyright-o-rama!
@@ -1082,12 +1082,6 @@
 
        /* Switch to newlwp's stack. */
        movq    L_PCB(%r12),%r14
-#ifdef XEN /* XXX debug code */
-       cmpq    $0,PCB_RSP(%r14)
-       jne 999f
-       callq _C_LABEL(cpu_Debugger);
-999:
-#endif
        movq    PCB_RSP(%r14),%rsp
        movq    PCB_RBP(%r14),%rbp
 
@@ -1236,8 +1230,6 @@
  * syscall()
  *
  * syscall insn entry.
- * This currently isn't much faster, but it can be made faster in the future.
- * (Actually we've already saved a few 100 clocks by not loading the trap gate)
  */
 IDTVEC(syscall)
 #ifndef XEN