[英]how to use addr2line in commandline
how to use addr2line? 如何使用addr2line? i have a program that gives the backtrace of last 10 addresses that it visited before crash.
我有一个程序,它提供崩溃前访问过的最后10个地址的回溯。 but if i use these address to addr2line like
但如果我使用这些地址addr2line喜欢
addr2line -e test [address]
it just gives me 它只是给了我
??:0
is there a special way to compile to use addr2line like we use ggdb to use gdb? 是否有一种特殊的方式来编译使用addr2line,就像我们使用ggdb来使用gdb一样?
You need to have some debugging information compiled in to your executable. 您需要将一些调试信息编译到您的可执行文件中。 eg
例如
$ gcc t.c # debug information not requested
$ gdb ./a.out
...
(gdb) break main
Breakpoint 1 at 0x400588
(gdb) q
$ addr2line -e a.out 0x400588
??:0 # no information returned
$ gcc -g t.c # default debug information requested with -g
$ addr2line -e a.out 0x400588
t.c:4 # line information returnedd
$
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