[greatlrd] 28205: Remove init.s and put Thomas's code into boot.s, so we don't have 2 files for the same purpose. Write the few lines of C code that were part of the "final" code into boot.S as well, to avoid yet another trampoline jump. and Thanks again to Thomas for finding and fixing the bug.
6 Aug
2007
6 Aug
'07
11:55 p.m.
Author: greatlrd
Date: Tue Aug 7 03:55:35 2007
New Revision: 28205
URL: http://svn.reactos.org/svn/reactos?rev=28205&view=rev
Log:
Remove init.s and put Thomas's code into boot.s, so we don't have 2 files for the
same purpose.
Write the few lines of C code that were part of the "final" code into boot.S as
well, to avoid yet another trampoline jump. and
Thanks again to Thomas for finding and fixing the bug.
Modified:
trunk/reactos/include/ndk/asm.h
trunk/reactos/ntoskrnl/include/internal/ke.h
trunk/reactos/ntoskrnl/ke/i386/boot.S
trunk/reactos/ntoskrnl/ke/i386/init.S
trunk/reactos/ntoskrnl/ke/i386/kiinit.c
trunk/reactos/ntoskrnl/ntoskrnl.rbuild
Modified: trunk/reactos/include/ndk/asm.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/include/ndk/asm.h?rev=2820…
==============================================================================
--- trunk/reactos/include/ndk/asm.h (original)
+++ trunk/reactos/include/ndk/asm.h Tue Aug 7 03:55:35 2007
@@ -113,6 +113,7 @@
#define KTHREAD_WAIT_IRQL 0x4E
#define KTHREAD_NEXT_PROCESSOR 0x40
#define KTHREAD_WAIT_REASON 0x5A
+#define KTHREAD_PRIORITY 0x5B
#define KTHREAD_SWAP_BUSY 0x5D
#define KTHREAD_SERVICE_TABLE 0x118
#define KTHREAD_PREVIOUS_MODE 0xD7
@@ -611,3 +612,4 @@
#endif // !_ASM_H
+
Modified: trunk/reactos/ntoskrnl/include/internal/ke.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/include/internal/…
==============================================================================
--- trunk/reactos/ntoskrnl/include/internal/ke.h (original)
+++ trunk/reactos/ntoskrnl/include/internal/ke.h Tue Aug 7 03:55:35 2007
@@ -831,6 +831,17 @@
VOID
NTAPI
+KiSetupStackAndInitializeKernel(
+ IN PKPROCESS InitProcess,
+ IN PKTHREAD InitThread,
+ IN PVOID IdleStack,
+ IN PKPRCB Prcb,
+ IN CCHAR Number,
+ IN PLOADER_PARAMETER_BLOCK LoaderBlock
+);
+
+VOID
+NTAPI
KiInitSpinLocks(
IN PKPRCB Prcb,
IN CCHAR Number
Modified: trunk/reactos/ntoskrnl/ke/i386/boot.S
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ke/i386/boot.S?re…
==============================================================================
--- trunk/reactos/ntoskrnl/ke/i386/boot.S (original)
+++ trunk/reactos/ntoskrnl/ke/i386/boot.S Tue Aug 7 03:55:35 2007
@@ -1,8 +1,9 @@
/*
* FILE: ntoskrnl/ke/i386/boot.S
* COPYRIGHT: See COPYING in the top level directory
- * PURPOSE: FreeLDR Wrapper Bootstrap Code
- * PROGRAMMER: Alex Ionescu (alex(a)relsoft.net)
+ * PURPOSE: FreeLDR Wrapper Bootstrap Code and Bootstrap Trampoline
+ * PROGRAMMERs: Alex Ionescu (alex(a)relsoft.net)
+ * Thomas Weidenmueller <w3seek(a)reactos.org>
*/
/* INCLUDES ******************************************************************/
@@ -38,3 +39,41 @@
/* FREELDR Boot: Cal the FreeLDR wrapper */
jmp @KiRosPrepareForSystemStartup@8
.endfunc
+
+.globl _KiSetupStackAndInitializeKernel@24
+.func KiSetupStackAndInitializeKernel@24
+_KiSetupStackAndInitializeKernel@24:
+
+ /* Save current stack */
+ mov esi, esp
+
+ /* Setup the new stack */
+ mov esp, [esp+12]
+ sub esp, NPX_FRAME_LENGTH + KTRAP_FRAME_ALIGN + KTRAP_FRAME_LENGTH
+ push CR0_EM + CR0_TS + CR0_MP
+
+ /* Copy all parameters to the new stack */
+ push [esi+24]
+ push [esi+20]
+ push [esi+16]
+ push [esi+12]
+ push [esi+8]
+ push [esi+4]
+ xor ebp, ebp
+ call _KiInitializeKernel@24
+
+ /* Set the priority of this thread to 0 */
+ mov ebx, PCR[KPCR_CURRENT_THREAD]
+ mov byte ptr [ebx+KTHREAD_PRIORITY], 0
+
+ /* Force interrupts enabled and lower IRQL back to DISPATCH_LEVEL */
+ sti
+ mov ecx, DISPATCH_LEVEL
+ call @KfLowerIrql@4
+
+ /* Set the right wait IRQL */
+ mov byte ptr [ebx+KTHREAD_WAIT_IRQL], DISPATCH_LEVEL;
+
+ /* Jump into the idle loop */
+ jmp @KiIdleLoop@0
+.endfunc
Modified: trunk/reactos/ntoskrnl/ke/i386/init.S
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ke/i386/init.S?re…
==============================================================================
--- trunk/reactos/ntoskrnl/ke/i386/init.S (original)
+++ trunk/reactos/ntoskrnl/ke/i386/init.S Tue Aug 7 03:55:35 2007
@@ -1,39 +1,0 @@
-/*
- * FILE: ntoskrnl/ke/i386/init.S
- * COPYRIGHT: See COPYING in the top level directory
- * PURPOSE: Kernel Initialization
- * PROGRAMMER: Thomas Weidenmueller <w3seek(a)reactos.org>
- */
-
-/* INCLUDES ******************************************************************/
-
-#include <asm.h>
-#include <internal/i386/asmmacro.S>
-.intel_syntax noprefix
-
-/* FUNCTIONS ******************************************************************/
-
-.text
-.globl _KiSetupStackAndInitializeKernel@24
-.func KiSetupStackAndInitializeKernel@24
-_KiSetupStackAndInitializeKernel@24:
-
- mov esi, esp
-
- /* Setup the new stack */
- mov esp, [esp + 12]
- sub esp, NPX_FRAME_LENGTH + KTRAP_FRAME_ALIGN + KTRAP_FRAME_LENGTH
- push CR0_EM + CR0_TS + CR0_MP
-
- /* Copy all parameters to the new stack */
- push [esi + 24]
- push [esi + 20]
- push [esi + 16]
- push [esi + 12]
- push [esi + 8]
- push [esi + 4]
- xor ebp, ebp
- call _KiInitializeKernel@24
-
- jmp _KiSystemStartupFinal@0
-.endfunc
Modified: trunk/reactos/ntoskrnl/ke/i386/kiinit.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ke/i386/kiinit.c?…
==============================================================================
--- trunk/reactos/ntoskrnl/ke/i386/kiinit.c (original)
+++ trunk/reactos/ntoskrnl/ke/i386/kiinit.c Tue Aug 7 03:55:35 2007
@@ -11,16 +11,6 @@
#include <ntoskrnl.h>
#define NDEBUG
#include <debug.h>
-
-
-VOID
-NTAPI
-KiSetupStackAndInitializeKernel(IN PKPROCESS InitProcess,
- IN PKTHREAD InitThread,
- IN PVOID IdleStack,
- IN PKPRCB Prcb,
- IN CCHAR Number,
- IN PLOADER_PARAMETER_BLOCK LoaderBlock);
/* GLOBALS *******************************************************************/
@@ -765,41 +755,11 @@
/* Align stack and make space for the trap frame and NPX frame */
InitialStack &= ~(KTRAP_FRAME_ALIGN - 1);
- /* NOTE: We cannot setup the stack using inline assembly and then later assume
- that the compiler is smart enough to figure out how the stack layout
- changed! This is to avoid generating wrong code. We cannot directly
- call KiInitializeKernel from here! */
-
+ /* Switch to new kernel stack and start kernel bootstrapping */
KiSetupStackAndInitializeKernel(&KiInitialProcess.Pcb,
InitialThread,
(PVOID)InitialStack,
(PKPRCB)__readfsdword(KPCR_PRCB),
(CCHAR)Cpu,
KeLoaderBlock);
-
- /* NOTE: KiSetupStackAndInitializeKernel never returns! Do NOT add any code here! */
- ASSERT(FALSE);
}
-
-VOID
-NTAPI
-KiSystemStartupFinal(VOID)
-{
- /* NOTE: This routine is called after setting up the stack in KiSystemStartup!
- This code cannot be moved to KiSystemStartup because it cannot be assumed
- that the compiler can generate working code after modifying ESP/EBP
- using inline assembly! */
-
- /* Set the priority of this thread to 0 */
- KeGetCurrentThread()->Priority = 0;
-
- /* Force interrupts enabled and lower IRQL back to DISPATCH_LEVEL */
- _enable();
- KfLowerIrql(DISPATCH_LEVEL);
-
- /* Set the right wait IRQL */
- KeGetCurrentThread()->WaitIrql = DISPATCH_LEVEL;
-
- /* Jump into the idle loop */
- KiIdleLoop();
-}
Modified: trunk/reactos/ntoskrnl/ntoskrnl.rbuild
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ntoskrnl.rbuild?r…
==============================================================================
--- trunk/reactos/ntoskrnl/ntoskrnl.rbuild (original)
+++ trunk/reactos/ntoskrnl/ntoskrnl.rbuild Tue Aug 7 03:55:35 2007
@@ -37,7 +37,6 @@
<file>cpu.c</file>
<file>ctxswitch.S</file>
<file>exp.c</file>
- <file>init.S</file>
<file>irqobj.c</file>
<file>kiinit.c</file>
<file>ldt.c</file>
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