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int main()
{
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push 4
push 3
push 2
push 1
call func
add esp 0x10 //µ÷ÓÃÕ߻ָ´¶ÑÕ»Ö¸Õëesp£¬4¸ö²ÎÊýµÄ´óСÊÇ0x10(4x4)
}
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_cdeclÊÇCºÍC£«£«³ÌÐòµÄȱʡµ÷Ó÷½Ê½¡£Ã¿Ò»¸öµ÷ÓÃËüµÄº¯Êý¶¼°üº¬Çå¿Õ¶ÑÕ»µÄ´úÂ룬ËùÒÔ²úÉúµÄ¿ÉÖ´ÐÐÎļþ´óС»á±Èµ÷ÓÃ_stdcallº¯ÊýµÄ´ó¡£º¯Êý²ÉÓôÓÓÒµ½×óµÄѹջ·½Ê½¡£VC½«º¯Êý±àÒëºó»áÔÚº¯ÊýÃûÇ°Ãæ¼ÓÉÏÏ»®Ïßǰ׺¡£ÊÇMFCȱʡµ÷ÓÃÔ¼¶¨
2.Èç¹ûº¯ÊýfuncÊÇ__stdcall£¬µ÷ÓÃʱÇé¿öÈçÏÂ
int main()
{
//²ÎÊý´ÓÓÒµ½×óѹջ
push 4
push 3
push 2
push 1
call func
//»Ö¸´¶ÑÕ»Ö¸ÕëÓɱ»µ÷ÓÃÕßfunc¸ºÔ𣬷½·¨ÊÇ"ret 0x10"
}
_stdcallÊÇPascal³ÌÐòµÄȱʡµ÷Ó÷½Ê½£¬Í¨³£ÓÃÓÚWin32 ApiÖУ¬º¯Êý²ÉÓôÓÓÒµ½×óµÄѹջ·½Ê½£¬×Ô¼ºÔÚÍ˳öʱÇå¿Õ¶ÑÕ»¡£VC½«º¯Êý±àÒëºó»áÔÚº¯ÊýÃûǰ
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int main()
{
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push 1
push 2
push 3
push 4
call func
//»Ö¸´¶ÑÕ»Ö¸ÕëÓɱ»µ÷ÓÃÕßfunc¸ºÔ𣬷½·¨ÊÇ"ret 0x10"
}
3.Èç¹ûº¯ÊýfuncÊÇ__fastcall£¬µ÷ÓÃÇé¿öÈçÏÂ
int main()
{
//²ÎÊýÏÈÓÃecx, edx, eax´«µÝ£¬È»ºóÔÙѹջ
//²»½øÕ»
//(²»ÖªÎªÊ²Ã´£¬°ïÖúÖÐдµÄÊÇ´Ó×óµ½ÓÒ´«µÝµÄ£¬
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push 4
mov ecx 3
mov edx 2
mov eax 1
call func
//»Ö¸´¶ÑÕ»Ö¸ÕëÓɱ»µ÷ÓÃÕßfunc¸ºÔ𣬷½·¨ÊÇ"ret 0x04",
//ÒòΪֻ½øÕ»Ò»¸ö²ÎÊý£¬ÆäÓàÓüĴæÆ÷´«µÝ£¬ËùÒÔÓÃret 0x04»Ö¸´
}
__fastcallµ÷ÓÃÔ¼¶¨ÊÇ“ÈË”ÈçÆäÃû£¬ËüµÄÖ÷ÒªÌØµã¾ÍÊǿ죬ÒòΪËüÊÇͨ¹ý¼Ä´æÆ÷À´´«ËͲÎÊýµÄ£¨Êµ¼ÊÉÏ£¬ËüÓÃECXºÍEDX´«ËÍǰÁ½¸öË«×Ö£¨DWORD£©»ò¸üСµÄ²ÎÊý£¬Ê£ÏµIJÎÊýÈÔ¾É×ÔÓÒÏò×óѹջ´«ËÍ£¬±»µ÷Óõĺ¯ÊýÔÚ·µ»ØÇ°ÇåÀí´«ËͲÎÊýµÄÄÚ´æÕ»£©£¬ÔÚº¯ÊýÃûÐÞÊÎÔ¼¶¨·½Ã棬ËüºÍǰÁ½Õß¾ù²»Í¬¡£
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