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macbook's Issues

勘误

第1章,1.3节。13页,配图1-12错误,图中所示为 jnz loc_100000f13 , 应改为 jnz loc_100000f06.

p199 错别字

199页第一行,错别字

这里只用32位寄存器是应为x86_x64的机制 -------->因为

提问:汇编函数的第七个参数的入栈偏移

在研究第五章的汇编时
将如下C程序

uint64_t foo(uint64_t a1,uint64_t a2,uint64_t a3,uint64_t a4,uint64_t a5,uint64_t a6,uint64_t a7,uint64_t a8,uint64_t a9,uint64_t a10,uint64_t a11) {
    return a1+a2+a3+a4+a5+a6+a7+a8+a9+a10+a11;
}

编译后得到如下汇编代码

## BB#0:
	push	rbp
	mov	rbp, rsp
	lea	rax, [rdi + rsi]
	add	rax, rdx
	add	rax, rcx
	add	rax, r8
	add	rax, r9
	add	rax, qword ptr [rbp + 16]
	add	rax, qword ptr [rbp + 24]
	add	rax, qword ptr [rbp + 32]
	add	rax, qword ptr [rbp + 40]
	add	rax, qword ptr [rbp + 48]
	pop	rbp
	ret

和书上的例子基本上是相同的
但是有个问题:
为何第七个参数是从[rbp + 16]开始的
而不是[rbp+8]?
因为目测push了所有7-11的参数入栈后
就进入了foo
接着就push rbp
之后再也没有push
这里应该只用了8bytes吧
最后把rbp定位到rsp
我的理解就是找第七号元素只需要[rbp+8]
还请诸位不吝赐教。

HT Editor 使用

1.3 使用HT Editor进行破解
我这里快捷键不是fn+F1....
用的esc+f1......
捣鼓了很久😂

第五章勘误

1.189页“字符串”一节“用于定义类似于C语言字符串字面量的的字符串”多了一个的字
2.191页图5-2下面的第二行文字的“REX”寄存器应为“RAX”寄存器
3.193页第10行助记符的英文错了,应为mnemonic
4.196页“5.4.5 栈操作指令”一节的第三行“这个区域分为两堆和栈个部分”应为“这个区域分为堆和栈两个部分”

建议crackme提供binary

首先非常感谢书和相应的源码。我有一个建议,即提供crackm的binary,做练习之用。当然可以从源码build,不过还是不如直接有binary方便。

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