[src/trunk]: src/sys/arch/i386/i386 Delete dead code.

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

details:   https://anonhg.NetBSD.org/src/rev/f05c15bf6a8c
branches:  trunk
changeset: 511333:f05c15bf6a8c
user:      sommerfeld <sommerfeld%NetBSD.org@localhost>
date:      Mon Jun 18 03:33:59 2001 +0000

description:
Delete dead code.
Mask segment registers from trap frame with 0xffff for cleanliness.

diffstat:

 sys/arch/i386/i386/process_machdep.c |  27 +++++++--------------------
 1 files changed, 7 insertions(+), 20 deletions(-)

diffs (56 lines):

diff -r 28ee6c2ec7a9 -r f05c15bf6a8c sys/arch/i386/i386/process_machdep.c
--- a/sys/arch/i386/i386/process_machdep.c      Mon Jun 18 03:32:14 2001 +0000
+++ b/sys/arch/i386/i386/process_machdep.c      Mon Jun 18 03:33:59 2001 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: process_machdep.c,v 1.33 2001/06/17 21:01:35 sommerfeld Exp $  */
+/*     $NetBSD: process_machdep.c,v 1.34 2001/06/18 03:33:59 sommerfeld Exp $  */
 
 /*-
  * Copyright (c) 1998, 2000 The NetBSD Foundation, Inc.
@@ -116,10 +116,10 @@
        } else
 #endif
        {
-               regs->r_gs = tf->tf_gs;
-               regs->r_fs = tf->tf_fs;
-               regs->r_es = tf->tf_es;
-               regs->r_ds = tf->tf_ds;
+               regs->r_gs = tf->tf_gs & 0xffff;
+               regs->r_fs = tf->tf_fs & 0xffff;
+               regs->r_es = tf->tf_es & 0xffff;
+               regs->r_ds = tf->tf_ds & 0xffff;
                regs->r_eflags = tf->tf_eflags;
        }
        regs->r_edi = tf->tf_edi;
@@ -130,9 +130,9 @@
        regs->r_ecx = tf->tf_ecx;
        regs->r_eax = tf->tf_eax;
        regs->r_eip = tf->tf_eip;
-       regs->r_cs = tf->tf_cs;
+       regs->r_cs = tf->tf_cs & 0xffff;
        regs->r_esp = tf->tf_esp;
-       regs->r_ss = tf->tf_ss;
+       regs->r_ss = tf->tf_ss & 0xffff;
 
        return (0);
 }
@@ -191,19 +191,6 @@
        } else
 #endif
        {
-#define        verr_ldt(slot)  (slot < pmap->pm_ldt_len && \
-                        (pmap->pm_ldt[slot].sd.sd_type & SDT_MEMRO) != 0 && \
-                        pmap->pm_ldt[slot].sd.sd_dpl == SEL_UPL && \
-                        pmap->pm_ldt[slot].sd.sd_p == 1)
-#define        verr_gdt(slot)  (slot < NGDT && \
-                        (gdt[slot].sd.sd_type & SDT_MEMRO) != 0 && \
-                        gdt[slot].sd.sd_dpl == SEL_UPL && \
-                        gdt[slot].sd.sd_p == 1)
-#define        verr(sel)       (ISLDT(sel) ? verr_ldt(IDXSEL(sel)) : \
-                                     verr_gdt(IDXSEL(sel)))
-#define        valid_sel(sel)  (ISPL(sel) == SEL_UPL && verr(sel))
-#define        null_sel(sel)   (!ISLDT(sel) && IDXSEL(sel) == 0)
-
                /*
                 * Check for security violations.
                 */