{KERNEL32]

- move BaseFiberStartup to fiber.S
- add FPO debug info for MSVC builds
- remove excessive END directives (fixes msvc build)
- add a stub for amd64

svn path=/trunk/; revision=52810
This commit is contained in:
Timo Kreuzer 2011-07-23 17:16:51 +00:00
parent 09a15b8b05
commit 1476736018
3 changed files with 46 additions and 31 deletions

View file

@ -1,19 +1,27 @@
/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS system libraries
* FILE: lib/kernel32/thread/i386/fiber.S
* PURPOSE: Fiber context switch code for the x86 architecture
* PROGRAMMERS: Alex Ionescu (alex@relsoft.net)
* KJK::Hyperion <noog@libero.it>
* FILE: dll/win32//kernel32/client/amd64/fiber.S
* PURPOSE: Fiber context switch code for the amd64 architecture
* PROGRAMMER:
*/
#include <asm.inc>
PUBLIC BaseFiberStartup
.PROC BaseFiberStartup
UNIMPLEMENTED BaseFiberStartup
/* FIXME: TODO */
ret
.ENDP BaseFiberStartup
PUBLIC SwitchToFiber
SwitchToFiber:
UNIMPLEMENTED BaseFiberStartup
/* FIXME: TODO */
ret 4
ret
END

View file

@ -10,16 +10,32 @@
#include <asm.inc>
#include <ks386.inc>
EXTERN _BaseThreadStartup@8:PROC
.code
PUBLIC _BaseFiberStartup@0
.PROC BaseFiberStartup@0
/* Frame pointer is zeroed */
FPO 0, 0, 0, 0, 0, FRAME_FPO
/* Get the fiber data */
mov eax, fs:[TEB_FIBER_DATA]
push dword ptr [eax+FIBER_CONTEXT_EBX] /* Parameter */
push dword ptr [eax+FIBER_CONTEXT_EAX] /* Start Address */
call _BaseThreadStartup@8
.ENDP BaseFiberStartup@0
PUBLIC _SwitchToFiber@4
_SwitchToFiber@4:
/* Get the TEB */
mov edx, fs:[TEB_SELF]
/* Get the Fiber */
mov eax, [edx+TEB_FIBER_DATA]
/* Save the non-volatile registers */
mov [eax+FIBER_CONTEXT_EBX], ebx
mov [eax+FIBER_CONTEXT_ESI], esi
@ -29,27 +45,27 @@ _SwitchToFiber@4:
/* Check if we're to save FPU State */
cmp dword ptr [eax+FIBER_CONTEXT_FLAGS], CONTEXT_FULL OR CONTEXT_FLOATING_POINT
jnz NoFpuStateSave
/* Save the FPU State (Status and Control)*/
fstsw [eax+FIBER_CONTEXT_FLOAT_SAVE_STATUS_WORD]
fnstcw [eax+FIBER_CONTEXT_FLOAT_SAVE_CONTROL_WORD]
/* Check if the CPU supports SIMD MXCSR State Save */
cmp byte ptr ds:[PF_XMMI_INSTRUCTIONS_AVAILABLE], 1
jnz NoFpuStateSave
stmxcsr [eax+FIBER_CONTEXT_DR6]
NoFpuStateSave:
/* Save stack since we're not touching it anymore */
mov [eax+FIBER_CONTEXT_ESP], esp
/* Transfer some data from the TEB */
mov ecx, [edx+TEB_FLS_DATA]
mov [eax+FIBER_FLS_DATA], ecx
mov ecx, [edx+TEB_ACTIVATION_CONTEXT_STACK_POINTER]
mov [eax+FIBER_ACTIVATION_CONTEXT_STACK], ecx
/* Transfer some data related to the Stack */
mov ecx, [edx+TEB_EXCEPTION_LIST]
mov [eax+FIBER_EXCEPTION_LIST], ecx
@ -57,11 +73,11 @@ NoFpuStateSave:
mov [eax+FIBER_STACK_LIMIT], ecx
mov ecx, [edx+TEB_GUARANTEED_STACK_BYTES]
mov [eax+FIBER_GUARANTEED_STACK_BYTES], ecx
/* Switch to the new fiber */
mov ecx, [esp+4]
mov [edx+TEB_FIBER_DATA], ecx
/* Switch Fiber Data */
mov esi, [ecx+FIBER_EXCEPTION_LIST]
mov [edx+TEB_EXCEPTION_LIST], esi
@ -75,34 +91,34 @@ NoFpuStateSave:
mov [edx+TEB_GUARANTEED_STACK_BYTES], esi
mov esi, [ecx+FIBER_ACTIVATION_CONTEXT_STACK]
mov [edx+TEB_ACTIVATION_CONTEXT_STACK_POINTER], esi
/* Restore FPU State */
cmp dword ptr [eax+FIBER_CONTEXT_FLAGS], CONTEXT_FULL OR CONTEXT_FLOATING_POINT
jnz NoFpuStateRestore
/* Check if the Status Word Changed */
mov esi, [eax+FIBER_CONTEXT_FLOAT_SAVE_STATUS_WORD]
cmp si, word ptr [ecx+FIBER_CONTEXT_FLOAT_SAVE_STATUS_WORD]
jnz StatusWordChanged
/* Check if the Control Word Changed */
mov esi, [eax+FIBER_CONTEXT_FLOAT_SAVE_CONTROL_WORD]
cmp si, word ptr [ecx+FIBER_CONTEXT_FLOAT_SAVE_CONTROL_WORD]
jz ControlWordEqual
StatusWordChanged:
/* Load the new one */
mov word ptr [ecx+FIBER_CONTEXT_FLOAT_SAVE_TAG_WORD], HEX(0FFFF)
fldenv [ecx+FIBER_CONTEXT_FLOAT_SAVE_CONTROL_WORD]
ControlWordEqual:
/* Load the new one */
cmp byte ptr ds:[PF_XMMI_INSTRUCTIONS_AVAILABLE], 1
jnz NoFpuStateRestore
ldmxcsr [ecx+FIBER_CONTEXT_DR6]
NoFpuStateRestore:
/* Restore non-volatile registers */
@ -111,7 +127,7 @@ NoFpuStateRestore:
mov ebx, [ecx+FIBER_CONTEXT_EBX]
mov ebp, [ecx+FIBER_CONTEXT_EBP]
mov esp, [ecx+FIBER_CONTEXT_ESP]
/* Restore FLS Data */
mov eax, [ecx+FIBER_FLS_DATA]
mov [edx+TEB_FLS_DATA], eax

View file

@ -24,7 +24,7 @@ _BaseThreadStartupThunk@0:
push eax /* lpStartAddress */
push 0 /* Return EIP */
jmp _BaseThreadStartup@8
END
PUBLIC _BaseProcessStartThunk@0
_BaseProcessStartThunk@0:
@ -35,16 +35,7 @@ _BaseProcessStartThunk@0:
push 0 /* Return EIP */
jmp _BaseProcessStartup@4
END
PUBLIC _BaseFiberStartup@0
_BaseFiberStartup@0:
/* Get the fiber data */
mov eax, fs:[TEB_FIBER_DATA]
push dword ptr [eax+FIBER_CONTEXT_EBX] /* Parameter */
push dword ptr [eax+FIBER_CONTEXT_EAX] /* Start Address */
call _BaseThreadStartup@8
END
/* EOF */