如何查看堆栈中的字符串值？
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我有以下汇编代码。
我可以在“ lea”之后看到“％rax”寄存器中的字符串值-（A）
(gdb) p (char*)0x558efff0a010
$1 = 0x558efff0a010 "abc"
但是在“移动”之后我看不到堆栈中的值-（B）
(gdb) p (char*)0x7fff2754b2a8
$2 = 0x7fff2754b2a8 "\020\240\360\377\216U"
我想念什么吗？
汇编代码
.data
.L0:
.string "abc"
.text
.global f
f:
push %rbp
mov %rsp, %rbp
sub $8, %rsp
lea .L0(%rip), %rax -- (A)
mov %rax, -8(%rbp) -- (B)
leave
ret
main：
rax 0x558effd095fa 94072665576954
rbp 0x7fff2754b2c0 0x7fff2754b2c0
rsp 0x7fff2754b2c0 0x7fff2754b2c0
--------------|--------------
ADDRESS |VALUE
--------------|--------------
0x7fff2754b2c0| <= rbp, rsp
--------------|--------------
f（）
rax 0x0 0
rbp 0x7fff2754b2c0 0x7fff2754b2c0
rsp 0x7fff2754b2b8 0x7fff2754b2b8
--------------|--------------
ADDRESS |VALUE
--------------|--------------
0x7fff2754b2c0| <= rbp
--------------|--------------
0x7fff2754b2b8| <= rsp
--------------|--------------
push％rbp
rax 0x0 0
rbp 0x7fff2754b2c0 0x7fff2754b2c0
rsp 0x7fff2754b2b0 0x7fff2754b2b0
--------------|--------------
ADDRESS |VALUE
--------------|--------------
0x7fff2754b2c0| <= rbp
--------------|--------------
0x7fff2754b2b8|
--------------|--------------
0x7fff2754b2b0| <= rsp
--------------|--------------
mov％rsp，％rbp
rax 0x0 0
rbp 0x7fff2754b2b0 0x7fff2754b2b0
rsp 0x7fff2754b2b0 0x7fff2754b2b0
--------------|--------------
ADDRESS |VALUE
--------------|--------------
0x7fff2754b2c0|
--------------|--------------
0x7fff2754b2b8|
--------------|--------------
0x7fff2754b2b0| <= rbp, rsp
--------------|--------------
[sub $ 8，％rsp
rax 0x0 0
rbp 0x7fff2754b2b0 0x7fff2754b2b0
rsp 0x7fff2754b2a8 0x7fff2754b2a8
--------------|--------------
ADDRESS |VALUE
--------------|--------------
0x7fff2754b2c0|
--------------|--------------
0x7fff2754b2b8|
--------------|--------------
0x7fff2754b2b0| <= rbp
--------------|--------------
0x7fff2754b2a8| <= rsp
--------------|--------------
lea .L0（％rip），％rax
rax 0x558efff0a010 94072667676688
rbp 0x7fff2754b2b0 0x7fff2754b2b0
rsp 0x7fff2754b2a8 0x7fff2754b2a8
--------------|--------------
ADDRESS |VALUE
--------------|--------------
0x7fff2754b2c0|
--------------|--------------
0x7fff2754b2b8|
--------------|--------------
0x7fff2754b2b0| <= rbp
--------------|--------------
0x7fff2754b2a8| <= rsp
--------------|--------------
(gdb) p (char*)0x558efff0a010
$1 = 0x558efff0a010 "abc"
mov％rax，-8（％rbp）
rax 0x558efff0a010 94072667676688
rbp 0x7fff2754b2b0 0x7fff2754b2b0
rsp 0x7fff2754b2a8 0x7fff2754b2a8
--------------|--------------
ADDRESS |VALUE
--------------|--------------
0x7fff2754b2c0|
--------------|--------------
0x7fff2754b2b8|
--------------|--------------
0x7fff2754b2b0| <= rbp
--------------|--------------
0x7fff2754b2a8| <= rsp
--------------|--------------
(gdb) p (char*)0x7fff2754b2a8
$2 = 0x7fff2754b2a8 "\020\240\360\377\216U"
答案
字符串数据仍然仅位于绝对地址0x558efff0a010。
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