linux命令出现段错误 linux错误代码大全

在Linux下写汇编总是会出现段错误是什么情况？

我这里是ubuntu x86-64，照着抄你的代码运行非常正常。

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编译运行：

as run.s -o run.o

ld run.o -o run

./run

GDB调试也没问题

GNU gdb (Ubuntu 8.1.1-0ubuntu1) 8.1.1

License GPLv3+: GNU GPL version 3 or later ;

This is free software: you are free to change and redistribute it.

There is NO WARRANTY, to the extent permitted by law. Type "show copying"

and "show warranty" for details.

This GDB was configured as "x86_64-linux-gnu".

Type "show configuration" for configuration details.

For bug reporting instructions, please see:

Find the GDB manual and other documentation resources online at:

For help, type "help".

Type "apropos word" to search for commands related to "word"...

Reading symbols from run...done.

(gdb) b _start

Breakpoint 1 at 0x400078: file run.s, line 6.

(gdb) r

Starting program: /home/×××××××/Desktop/run

Breakpoint 1, _start () at run.s:6

6 movl $1, %eax

(gdb) ni

7 movl $0, %ebx

(gdb) ni

8 int $0x80

(gdb) ni

[Inferior 1 (process 10617) exited normally]

(gdb) b _start

linux中的“段错误”通常是由内存分配失败或指针误指引起！

请检查程序中内存分配语句及其释放过程是否合理！

出段错误是一件好事。。。说明你的代码在指针这里出了问题。。。最怕的是编译过了但是程序跑飞了的这种逻辑错误。。改都不知道怎么改。。。出段错误你在程序里你觉得肯能有错的地方加上行打印 printf("%d\n",__LINE__); 或是隔几行加一个。。然后看程序死在那了。

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