宏调用问题

[太虚野老]

asld10: ACQUIRE_SPINLOCK ecx,<short asld20>
fstRET KefAcquireSpinLockAtDpcLevel
align 4
asld20: SPIN_ON_SPINLOCK ecx,<short asld10>

上面代码的错误信息是：error A2166: structure field expected

ACQUIRE_SPINLOCK 宏定义：
ACQUIRE_SPINLOCK macro LockAddress, SpinLabel, NoChecking

SPIN_ON_SPINLOCK宏定义：
SPIN_ON_SPINLOCK macro LockAddress, AcquireLabel, NoChecking, PollDebugger, NoTimeout

什么原因导致的错误，代码中的尖括号又是啥意思。

宏定义的具体代码我没有写，挺复杂的。如果需要，我再贴上来。

[日立奔腾浪潮微软松下联想]

<short asld20>应该是一个文本替换，在宏内部某个符号被替换为short asld20

[太虚野老]

ACQUIRE_SPINLOCK macro LockAddress, SpinLabel, NoChecking .errb <LockAddress> .errb <SpinLabel> ifndef NT_UP ; ; Attempt to assert the lock ; lock bts dword ptr [LockAddress], 0 ; test and set the spinlock jc SpinLabel ; spinlock owned, go SpinLabe if DBG ifb <NoChecking> push edi ; save edi mov edi,fs:PcPrcb mov edi, [edi].PbCurrentThread or edi, 1 ; spinlock owned mov [LockAddress], edi ; remember current thread pop edi ; restore edi endif ; NoChecking endif ; DBG endif ; NT_UP endm SPIN_ON_SPINLOCK macro LockAddress, AcquireLabel, NoChecking, PollDebugger, NoTimeout local a,b,flag ; define a local label .errb <LockAddress> .errb <AcquireLabel> ifndef NT_UP if DBG EXTRNP Kii386SpinOnSpinLock,2 flag = 0 ifb <NoChecking> flag = flag + 1 endif ifnb <Polldebugger> flag = flag + 2 endif ifb <NoTimeout> flag = flag + 4 endif stdCall Kii386SpinOnSpinLock,<LockAddress,flag> jmp AcquireLabel else ; DBG ; ; Non-Debug version ; a: test dword ptr [LockAddress], 1 ; Was spinlock cleared? jz AcquireLabel ; Yes, go get it YIELD jmp short a endif ; DBG endif ; NT_UP endm

[太虚野老]

我把这两个宏的定义贴出来， 没明白你说的什么意思。

[日立奔腾浪潮微软松下联想]

估计你用的汇编器版本比较低，ml 12.0汇编这两个宏没有问题。<short asld20>尖括号里是一个文本替换，意思是原样替换到使用宏参数的位置，对你的例子：
ACQUIRE_SPINLOCK ecx,<short asld20>
展开之后
jc SpinLabel
会变成
jc short asld20

[太虚野老]

ACQUIRE_SPINLOCK ecx,<short asld20> 中，ecx是ACQUIRE_SPINLOCK 宏的第一个参数吗？