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Fixed minor bugs interrupt_service2e()

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svn path=/trunk/; revision=998
This commit is contained in:
Eric Kohl 2000-02-22 20:50:07 +00:00
parent 5db4e55264
commit 213e8b569c
1 changed files with 7 additions and 15 deletions
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22
reactos/ntoskrnl/ke/i386/usercall.c
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@ -1,4 +1,4 @@
/* $Id: usercall.c,v 1.7 2000/02/22 07:27:30 rex Exp $
/* $Id: usercall.c,v 1.8 2000/02/22 20:50:07 ekohl Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -26,13 +26,6 @@
extern KE_SERVICE_DESCRIPTOR_TABLE_ENTRY KeServiceDescriptorTable[];
extern KE_SERVICE_DESCRIPTOR_TABLE_ENTRY KeServiceDescriptorTableShadow[];
/*
* These become obsolete when the interrupt handler uses
* the service descriptor tables.
*/
extern SSDT MainSSDT[];
extern SSPT MainSSPT[];
#define _STR(x) #x
#define STR(x) _STR(x)
@ -182,8 +175,8 @@ void interrupt_handler2e(void);
"cmpl $0x0fff, %eax\n\t"
"ja useShadowTable\n\t"
/* Check to see if SS is valid/inrange */
"cmpl _KeServiceDescriptorTable + 8, %eax\n\t"
/* Check to see if EAX is valid/inrange */
"cmpl %es:_KeServiceDescriptorTable + 8, %eax\n\t"
"jbe serviceInRange\n\t"
"movl $"STR(STATUS_INVALID_SYSTEM_SERVICE)", %eax\n\t"
"jmp done\n\t"
@ -230,8 +223,8 @@ void interrupt_handler2e(void);
"subl $0x1000, %eax\n\t"
/* Check to see if SS is valid/inrange */
"cmpl _KeServiceDescriptorTableShadow + 8, %eax\n\t"
/* Check to see if EAX is valid/inrange */
"cmpl %es:_KeServiceDescriptorTableShadow + 24, %eax\n\t"
"jbe shadowServiceInRange\n\t"
"movl $"STR(STATUS_INVALID_SYSTEM_SERVICE)", %eax\n\t"
"jmp done\n\t"
@ -239,7 +232,7 @@ void interrupt_handler2e(void);
"shadowServiceInRange:\n\t"
/* Allocate room for argument list from kernel stack */
"movl %es:_KeServiceDescriptorTableShadow + 12, %ecx\n\t"
"movl %es:_KeServiceDescriptorTableShadow + 28, %ecx\n\t"
"movl %es:(%ecx, %eax, 4), %ecx\n\t"
"subl %ecx, %esp\n\t"
@ -256,7 +249,7 @@ void interrupt_handler2e(void);
"popl %eax\n\t"
/* Make the system service call */
"movl %es:_KeServiceDescriptorTableShadow, %ecx\n\t"
"movl %es:_KeServiceDescriptorTableShadow + 16, %ecx\n\t"
"movl %es:(%ecx, %eax, 4), %eax\n\t"
"call *%eax\n\t"
@ -293,4 +286,3 @@ void interrupt_handler2e(void);
"popl %ebp\n\t" /* Ebp */
"iret\n\t");