在GDB中打印字符数组到文件

我有一个包含大约100k个条目的字符数组.似乎在功能我的时候
打印*缓冲区过早切断.有没有什么可以做的,可以延长gdb将打印到控制台的字符数量？如果没有,我可以将此变量打印到文件？我试图使用转储命令,但似乎没有想出正确的事情.

解决方法

(gdb) help x
examine memory: x/FMT ADDRESS.
ADDRESS is an expression for the memory address to examine.
FMT is a repeat count followed by a format letter and a size letter.
Format letters are o(octal),x(hex),d(decimal),u(unsigned decimal),t(binary),f(float),a(address),i(instruction),c(char) and s(string).
Size letters are b(byte),h(halfword),w(word),g(giant,8 bytes).
The specified number of objects of the specified size are printed
according to the format.

Defaults for format and size letters are those prevIoUsly used.
Default count is 1.  Default address is following last thing printed
with this command or "print".
(gdb) x/8b array
0xbffd7670:     0       0       0       0       0       0       0       0
(gdb) x/16b array
0xbffd7670:     0       0       0       0       0       0       0       0
0xbffd7678:     0       0       0       0       0       0       0       0
(gdb) x/128b array
0xbffd7670:     0       0       0       0       0       0       0       0
0xbffd7678:     0       0       0       0       0       0       0       0
0xbffd7680:     0       0       0       0       0       0       0       0
0xbffd7688:     0       0       0       0       0       0       0       0
0xbffd7690:     0       0       0       0       0       0       0       0
0xbffd7698:     0       0       0       0       0       0       0       0
0xbffd76a0:     0       0       0       0       0       0       0       0
0xbffd76a8:     0       0       0       0       0       0       0       0
0xbffd76b0:     0       0       0       0       0       0       0       0
0xbffd76b8:     0       0       0       0       0       0       0       0
0xbffd76c0:     0       0       0       0       0       0       0       0
0xbffd76c8:     0       0       0       0       0       0       0       0
0xbffd76d0:     0       0       0       0       0       0       0       0
0xbffd76d8:     0       0       0       0       0       0       0       0
0xbffd76e0:     0       0       0       0       0       0       0       0
0xbffd76e8:     0       0       0       0       0       0       0       0
(gdb)

如果您想要打印ASCII字符符号,请使用x /< size> c.

(gdb) set logging file ~/gdb_dump.txt
(gdb) set logging on
copying output to /home/mminich/gdb_dump.txt.
(gdb) x/26c array
0xbfff4b20:     97 'a'  98 'b'  99 'c'  100 'd' 101 'e' 102 'f' 103 'g' 104 'h'
0xbfff4b28:     105 'i' 106 'j' 107 'k' 108 'l' 109 'm' 110 'n' 111 'o' 112 'p'
0xbfff4b30:     113 'q' 114 'r' 115 's' 116 't' 117 'u' 118 'v' 119 'w' 120 'x'
0xbfff4b38:     121 'y' 122 'z'
(gdb) set logging off
Done logging to /home/mminich/gdb_dump.txt.
(gdb)

BTW,我完全同意William Pursell在你的问题上的评论：“我发现在执行数据转储的代码中定义函数更容易,只需从gdb调用它们(在#ifdef DEBUG中包含定义)”

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