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initialize the old "int 0x80" syscall only for COMPAT_16/NETBSD32, 

and the very old callgate for COMPAT_10/IBCS2
This commit is contained in:
drochner 2004-03-23 19:35:16 +00:00
parent be0359e629
commit 35b8d1d3ff
1 changed files with 12 additions and 3 deletions
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15
sys/arch/amd64/amd64/machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: machdep.c,v 1.21 2004/03/01 12:06:02 drochner Exp $ */
/* $NetBSD: machdep.c,v 1.22 2004/03/23 19:35:16 drochner Exp $ */
/*-
* Copyright (c) 1996, 1997, 1998, 2000 The NetBSD Foundation, Inc.
@ -72,12 +72,14 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.21 2004/03/01 12:06:02 drochner Exp $");
__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.22 2004/03/23 19:35:16 drochner Exp $");
#include "opt_user_ldt.h"
#include "opt_ddb.h"
#include "opt_kgdb.h"
#include "opt_compat_netbsd.h"
#include "opt_compat_netbsd32.h"
#include "opt_compat_ibcs2.h"
#include "opt_cpureset_delay.h"
#include "opt_multiprocessor.h"
#include "opt_mtrr.h"
@ -1029,8 +1031,12 @@ void cpu_init_idt()
typedef void (vector) __P((void));
extern vector IDTVEC(syscall);
extern vector IDTVEC(syscall32);
#if defined(COMPAT_16) || defined(COMPAT_NETBSD32)
extern vector IDTVEC(osyscall);
#endif
#if defined(COMPAT_10) || defined(COMPAT_IBCS2)
extern vector IDTVEC(oosyscall);
#endif
extern vector *IDTVEC(exceptions)[];
#define KBTOB(x) ((size_t)(x) * 1024UL)
@ -1437,10 +1443,11 @@ init_x86_64(first_avail)
x86_btop(VM_MAXUSER_ADDRESS) - 1, SDT_MEMRWA, SEL_UPL, 1, 0, 1);
/* make ldt gates and memory segments */
#if defined(COMPAT_10) || defined(COMPAT_IBCS2)
setgate((struct gate_descriptor *)(ldtstore + LSYS5CALLS_SEL),
&IDTVEC(oosyscall), 0, SDT_SYS386CGT, SEL_UPL,
GSEL(GCODE_SEL, SEL_KPL));
#endif
*(struct mem_segment_descriptor *)(ldtstore + LUCODE_SEL) =
*GDT_ADDR_MEM(gdtstore, GUCODE_SEL);
*(struct mem_segment_descriptor *)(ldtstore + LUDATA_SEL) =
@ -1485,10 +1492,12 @@ init_x86_64(first_avail)
idt_allocmap[x] = 1;
}
#if defined(COMPAT_16) || defined(COMPAT_NETBSD32)
/* new-style interrupt gate for syscalls */
setgate(&idt[128], &IDTVEC(osyscall), 0, SDT_SYS386IGT, SEL_UPL,
GSEL(GCODE_SEL, SEL_KPL));
idt_allocmap[128] = 1;
#endif
setregion(&region, gdtstore, DYNSEL_START - 1);
lgdt(&region);