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[ASM]

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- prefix labels only on x86
- improve syscall stub code

svn path=/trunk/; revision=53333
This commit is contained in:
Timo Kreuzer 2011-08-20 10:39:28 +00:00
parent 58972d8a1f
commit 1490c31014
2 changed files with 12 additions and 2 deletions
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8
reactos/include/asm/asm.inc
View file

@ -32,13 +32,21 @@ rip = 0
/* To avoid reverse syntax we provide a new macro .PROC, replacing PROC... */
.PROC MACRO name
#ifdef _M_IX86
_&name PROC
#else
&name PROC FRAME
#endif
ENDM
#define FUNC .PROC
/* ... and .ENDP, replacing ENDP */
.ENDP MACRO name
#ifdef _M_IX86
_&name ENDP
#else
&name ENDP
#endif
ENDM
#define ENDFUNC .ENDP

6
reactos/include/asm/syscalls.inc
View file

@ -3,12 +3,14 @@
#define KUSER_SHARED_SYSCALL HEX(7ffe0300)
#define KGDT_R0_CODE 8
MACRO(STUBCODE_U, SyscallId, StackBytes)
FPO 0, 0, 0, 0, 0, FRAME_FPO
mov eax, SyscallId
mov ecx, KUSER_SHARED_SYSCALL
call dword ptr [ecx]
ret StackBytes
ENDM
MACRO(STUBCODE_K, SyscallId, StackBytes)
FPO 0, 0, 0, 0, 0, FRAME_FPO
mov eax, SyscallId
lea edx, [esp + 4]
pushfd
@ -18,12 +20,14 @@ MACRO(STUBCODE_K, SyscallId, StackBytes)
ENDM
#elif defined(_M_AMD64)
MACRO(STUBCODE_U, SyscallId, StackBytes)
.ENDPROLOG
mov eax, SyscallId
mov r10, rcx
syscall
ret StackBytes
ENDM
MACRO(STUBCODE_K, SyscallId, StackBytes)
.ENDPROLOG
mov eax, SyscallId
call KiSystemService
ret StackBytes
@ -74,7 +78,6 @@ ENDM
MACRO(START_PROC, Name, Stackbytes)
PUBLIC _&Name&@&Stackbytes
.PROC &Name&@&Stackbytes
FPO 0, 0, 0, 0, 0, FRAME_FPO
ENDM
MACRO(END_PROC, Name, Stackbytes)
.ENDP &Name&@&Stackbytes
@ -87,7 +90,6 @@ ENDM
MACRO(START_PROC, Name, Stackbytes)
PUBLIC &Name
.PROC &Name
FPO 0, 0, 0, 0, 0, FRAME_FPO
ENDM
MACRO(END_PROC, Name, Stackbytes)
.ENDP &Name