如何從x86_64程序集調用sprintf？

Question

我想雙轉換爲字符串在棧上從x86_64的彙編代碼：

 bs.code += isa.movsd(registers.xmm0, MemRef(registers.rsp)) 
     bs.code += isa.pop(registers.rax) 

     bs.code += isa.push(registers.rbp) 
     bs.code += isa.mov(registers.rbp, registers.rsp) 

     bs.code += isa.sub(registers.rsp, 100) 
     bs.code += isa.and_(registers.rsp, -16) 

     bs.code += isa.mov(registers.rdi, registers.rsp) 
     bs.code += isa.mov(registers.rsi, <address of "%i\0">) 
     bs.code += isa.mov(registers.rax, <address of sprintf in libc>) 
     bs.code += isa.call(registers.rax) 

在call(rax)程序段錯誤與

Program received signal SIGSEGV, Segmentation fault. 
0x00007ffff6a2919b in *__GI___overflow (f=0x7fffffffb5d0, ch=9698128) at genops.c:248 
warning: Source file is more recent than executable. 
248 return _IO_OVERFLOW (f, ch); 

我認爲sprintf必須要特別，因爲它叫使用可變參數，所以任何人都可以建議正確的方式從彙編做到這一點？

Answer 1

如果你在C中編寫一個簡單的調用sprintf並使用gcc -s foo.c，會有幫助嗎？