找到变量Buf的准确地址
作为参考，我使用以下代码：
#include <stdio.h>
#include <string.h>
int main (void) {
char buf[100]; // ------> How do I find the address in gdb?
printf ("Buffer is at memory location: %08x\n", &buf);
strcpy (buf, "some random text");
printf ("Text is [%s]\n", buf);
return 0;
}
如何让 gdb 向我显示 buf 变量的地址？
As reference, I'm using the following code:
#include <stdio.h>
#include <string.h>
int main (void) {
char buf[100]; // ------> How do I find the address in gdb?
printf ("Buffer is at memory location: %08x\n", &buf);
strcpy (buf, "some random text");
printf ("Text is [%s]\n", buf);
return 0;
}
How can I get gdb to show me the address of the buf variable?
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(gdb) p &a如果您需要变量a的地址。不过，变量可能会缓存在寄存器中，在这种情况下，GDB 会告诉您为寄存器 $xxx 中的标识符“a”请求的地址。旁注：不要使用
gets，请参阅此处。(gdb) p &aif you need the address of variablea. A variable might be cached in a register though, in which case GDB would tell youaddress requested for identifier "a" which is in register $xxx.Sidenote: do not use
gets, see here.当 gdb 设置为 C 语言模式（和 Objective-C）时，
&运算符将起作用。在任何语言模式下，您都可以使用
（输出与您的代码不完全对应。）我写这个答案是因为即使是寻找其他语言答案的人（包括我自己）也发现了这个问题。人们也可以随时通过
set language c切换到C模式，但更改后符号名称可能会有所不同。The
&operator will work when gdb is set to C language mode (and Objective-C).In any language mode you can use
(The output does not correspond exactly to your code.) I am writing this answer because this question is found even by people looking for the answer for other languages (including myself). One can also always switch to the C mode by
set language c, but the symbol names may be different after this change.如果您在 gdb 中输入以下内容，您将获得地址：
如以下记录所示：
If you enter the following into gdb, you'll get the address:
as in the following transcript: