[ros-dev] [ros-diffs] [sir_richard] 45041: [NTOS]: Put ASM macros back since the HAL also uses them.
Gabriel ilardi
gabrielilardi at hotmail.it
Mon Jan 11 09:19:55 CET 2010
Hi,
Just for the record, with this revision I can't enter in graphic mode in 2nd stage, I always get this at the end of the drivers loading:
(subsystems/win32/win32k/ntuser/sysparams.c:1499) UserSystemParametersInfo called without active windowstation.
PuTTYEntered debugger on last-chance exception (Exception Code: 0xc000001d) (Invalid Opcode)
kdb:> bt
Eip:
<00010002>
Frames:
<43504420>
Couldn't access memory at 0x2A2A2A0E!
kdb:>
Best regards,
Gabriel.
> Date: Mon, 11 Jan 2010 06:41:19 +0000
> To: ros-diffs at reactos.org
> From: sir_richard at svn.reactos.org
> Subject: [ros-diffs] [sir_richard] 45041: [NTOS]: Put ASM macros back since the HAL also uses them.
>
> Author: sir_richard
> Date: Mon Jan 11 07:41:19 2010
> New Revision: 45041
>
> URL: http://svn.reactos.org/svn/reactos?rev=45041&view=rev
> Log:
> [NTOS]: Put ASM macros back since the HAL also uses them.
>
>
> Modified:
> trunk/reactos/ntoskrnl/include/internal/i386/asmmacro.S
>
> Modified: trunk/reactos/ntoskrnl/include/internal/i386/asmmacro.S
> URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/include/internal/i386/asmmacro.S?rev=45041&r1=45040&r2=45041&view=diff
> ==============================================================================
> --- trunk/reactos/ntoskrnl/include/internal/i386/asmmacro.S [iso-8859-1] (original)
> +++ trunk/reactos/ntoskrnl/include/internal/i386/asmmacro.S [iso-8859-1] Mon Jan 11 07:41:19 2010
> @@ -114,6 +114,28 @@
> .endm
>
> //
> +// @name UNHANDLED_V86_PATH
> +//
> +// This macro prints out that the current code path is for unhandled VDM support
> +//
> +// @param None
> +//
> +// @remark None.
> +//
> +.macro UNHANDLED_V86_PATH
> + /* Get EIP */
> + call $+5
> +
> + /* Print debug message */
> + push offset _V86UnhandledMsg
> + call _DbgPrint
> + add esp, 8
> +
> + /* Loop indefinitely */
> + jmp $
> +.endm
> +
> +//
> // @name IDT
> //
> // This macro creates an IDT entry for the given handler
> @@ -255,6 +277,58 @@
> .endm
>
> //
> +// @name INVALID_V86_OPCODE
> +//
> +// This macro creates one or more entries for unhandled V86 Opcodes
> +// in the V86 Opcode Table.
> +//
> +// @param count.
> +// Number of entries to generate.
> +//
> +// @remark None.
> +//
> +.macro INVALID_V86_OPCODE count
> + .rept \count
> + .byte 0
> + .endr
> +.endm
> +
> +//
> +// @name GENERATE_PREFIX_HANDLER
> +//
> +// This macro creates a prefix opcode handler.
> +//
> +// @param None.
> +//
> +// @remark None.
> +//
> +.macro GENERATE_PREFIX_HANDLER Name
> +.func Opcode&Name&PrefixV86
> +_Opcode&Name&PrefixV86:
> + or ebx, PREFIX_FLAG_&Name
> + jmp _OpcodeGenericPrefixV86
> +.endfunc
> +.endm
> +
> +//
> +// @name INVALID_V86_OPCODE
> +//
> +// This macro prints out visible message and hangs the computer.
> +//
> +// @param None.
> +//
> +// @remark Temporary debugging use.
> +//
> +.macro UNHANDLED_V86_OPCODE
> + /* Print debug message, breakpoint and freeze */
> + push ecx
> + push offset V86DebugMsg
> + call _DbgPrint
> + add esp, 8
> + jmp $
> +.endm
> +
> +//
> // @name TRAP_FIXUPS
> //
> // This macro contains out-of-line code for various Trap Frame Fixups, such as:
> @@ -448,6 +522,96 @@
> cli
> jmp 1b
> 2:
> +.endm
> +
> +//
> +// @name TRAP_PROLOG
> +//
> +// This macro creates a standard trap entry prologue.
> +// It should be used for entry into any kernel trap (KiTrapXx), but not for
> +// system calls, which require special handling.
> +//
> +// @param Label
> +// Identifying name of the caller function; will be used to append
> +// to the name V86 and DR helper functions, which must already exist.
> +//
> +// @remark Use as follows:
> +// _KiTrap00:
> +// /* Push fake error code */
> +// push 0
> +//
> +// /* Enter common prologue */
> +// TRAP_PROLOG(0)
> +//
> +// /* Handle trap */
> +// <Your Trap Code Here>
> +//
> +.macro TRAP_PROLOG Label EndLabel
> + /* Just to be safe, clear out the HIWORD, since it's reserved */
> + mov word ptr [esp+2], 0
> +
> + /* Save the non-volatiles */
> + push ebp
> + push ebx
> + push esi
> + push edi
> +
> + /* Save FS and set it to PCR */
> + push fs
> + mov ebx, KGDT_R0_PCR
> + .byte 0x66
> + mov fs, bx
> +
> + /* Save exception list and bogus previous mode */
> + push fs:[KPCR_EXCEPTION_LIST]
> + push -1
> +
> + /* Save volatiles and segment registers */
> + push eax
> + push ecx
> + push edx
> + push ds
> + push es
> + push gs
> +
> + /* Set the R3 data segment */
> + mov ax, KGDT_R3_DATA + RPL_MASK
> +
> + /* Skip debug registers and debug stuff */
> + sub esp, 0x30
> +
> + /* Load the segment registers */
> + .byte 0x66
> + mov ds, ax
> + .byte 0x66
> + mov es, ax
> +
> + /* Check if this interrupt happened in 16-bit mode */
> + cmp esp, 0x10000
> + jb _Ki16BitStackException
> +
> + /* Set up frame */
> + mov ebp, esp
> +
> + /* Check if this was from V86 Mode */
> + test dword ptr [ebp+KTRAP_FRAME_EFLAGS], EFLAGS_V86_MASK
> + jnz V86_&Label
> +
> +V86_&EndLabel:
> + /* Get current thread */
> + mov ecx, fs:[KPCR_CURRENT_THREAD]
> + cld
> +
> + /* Flush DR7 */
> + and dword ptr [ebp+KTRAP_FRAME_DR7], 0
> +
> + /* Check if the thread was being debugged */
> + test byte ptr [ecx+KTHREAD_DEBUG_ACTIVE], 0xFF
> + jnz Dr_&Label
> +
> + /* Set the Trap Frame Debug Header */
> +Dr_&EndLabel:
> + SET_TF_DEBUG_HEADER
> .endm
>
> //
> @@ -735,6 +899,164 @@
> .endm
>
> //
> +// @name V86_TRAP_PROLOG
> +//
> +// This macro creates a V86 Trap entry prologue.
> +// It should be used for entry into any fast-system call (KiGetTickCount,
> +// KiCallbackReturn, KiRaiseAssertion) and the generic system call handler
> +// (KiSystemService)
> +//
> +// @param Label
> +// Unique label identifying the name of the caller function; will be
> +// used to append to the name of the DR helper function, which must
> +// already exist.
> +//
> +// @remark None.
> +//
> +.macro V86_TRAP_PROLOG Label EndLabel
> +
> + /* Skip everything to the error code */
> + sub esp, KTRAP_FRAME_ERROR_CODE
> +
> + /* Clear the error code */
> + mov word ptr [esp+KTRAP_FRAME_ERROR_CODE+2], 0
> +
> + /* Save the registers we'll trample */
> + mov [esp+KTRAP_FRAME_EBX], ebx
> + mov [esp+KTRAP_FRAME_EAX], eax
> + mov [esp+KTRAP_FRAME_EBP], ebp
> + mov [esp+KTRAP_FRAME_ESI], esi
> + mov [esp+KTRAP_FRAME_EDI], edi
> +
> + /* Save PCR and Ring 3 segments */
> + mov ebx, KGDT_R0_PCR
> + mov eax, KGDT_R3_DATA + RPL_MASK
> +
> + /* Save ECX and EDX too */
> + mov [esp+KTRAP_FRAME_ECX], ecx
> + mov [esp+KTRAP_FRAME_EDX], edx
> +
> + /* Set debugging markers */
> + mov dword ptr [esp+KTRAP_FRAME_PREVIOUS_MODE], -1
> + mov dword ptr [esp+KTRAP_FRAME_DEBUGARGMARK], 0xBADB0D00
> +
> + /* Now set segments (use OVERRIDE, 0x66) */
> + .byte 0x66
> + mov fs, bx
> + .byte 0x66
> + mov ds, ax
> + .byte 0x66
> + mov es, ax
> +
> + /* Set the trap frame in the stack and clear the direction flag */
> + mov ebp, esp
> + cld
> +
> + /* Save the exception list */
> + mov eax, fs:[KPCR_EXCEPTION_LIST]
> + mov [esp+KTRAP_FRAME_EXCEPTION_LIST], eax
> +
> + /* Check if we need debugging */
> + mov eax, dr7
> + test eax, ~DR7_RESERVED_MASK
> + mov [esp+KTRAP_FRAME_DR7], eax
> + jnz Dr_&Label
> +
> +Dr_&EndLabel:
> +.endm
> +
> +//
> +// @name V86_TRAP_EPILOG
> +//
> +// This macro creates an epilogue for leaving V86 traps
> +//
> +// @param None.
> +//
> +// @remark None.
> +//
> +.macro V86_TRAP_EPILOG
> +
> + /* Get the current thread and make it unalerted */
> +ExitBegin:
> + mov ebx, PCR[KPCR_CURRENT_THREAD]
> + mov byte ptr [ebx+KTHREAD_ALERTED], 0
> +
> + /* Check if it has User-mode APCs pending */
> + cmp byte ptr [ebx+KTHREAD_PENDING_USER_APC], 0
> + jne PendingUserApc
> +
> + /* It doesn't, pop the frame */
> + add esp, KTRAP_FRAME_EDX
> + pop edx
> + pop ecx
> + pop eax
> +
> + /* Check if DR registers should be restored */
> + test dword ptr [ebp+KTRAP_FRAME_DR7], ~DR7_RESERVED_MASK
> + jnz V86DebugRestore
> +
> + /* Finish popping the rest of the frame, and return to P-mode */
> +V86DebugContinue:
> + add esp, 12
> + pop edi
> + pop esi
> + pop ebx
> + pop ebp
> + add esp, 4
> + iretd
> +
> +V86DebugRestore:
> +
> + /* Get DR0, 1 */
> + xor ebx, ebx
> + mov esi, [ebp+KTRAP_FRAME_DR0]
> + mov edi, [ebp+KTRAP_FRAME_DR1]
> +
> + /* Clear DR 7 */
> + mov dr7, ebx
> +
> + /* Get DR2 and load DR0-2 */
> + mov ebx, [ebp+KTRAP_FRAME_DR2]
> + mov dr0, esi
> + mov dr1, edi
> + mov dr2, ebx
> +
> + /* Get DR3-7 */
> + mov esi, [ebp+KTRAP_FRAME_DR0]
> + mov edi, [ebp+KTRAP_FRAME_DR1]
> + mov ebx, [ebp+KTRAP_FRAME_DR7]
> +
> + /* Load them */
> + mov dr3, esi
> + mov dr6, edi
> + mov dr7, ebx
> + jmp V86DebugContinue
> +
> +PendingUserApc:
> +
> + /* Raise to APC level */
> + mov ecx, APC_LEVEL
> + call @KfRaiseIrql at 4
> +
> + /* Save KIRQL and deliver APCs */
> + push eax
> + sti
> + push ebp
> + push 0
> + push UserMode
> + call _KiDeliverApc at 12
> +
> + /* Restore IRQL */
> + pop ecx
> + call @KfLowerIrql at 4
> + cli
> +
> + /* Check if we're not in V86 anymore */
> + test dword ptr [ebp+KTRAP_FRAME_EFLAGS], EFLAGS_V86_MASK
> + jnz ExitBegin
> +.endm
> +
> +//
> // @name TRAP_EPILOG
> //
> // This macro creates an epilogue for leaving any system trap.
>
>
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