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我有一個程序作爲殭屍進程運行。我想調試它。但是我得到了一個gdb錯誤。gdb是否可以附加殭屍程序(<defunct>)?
mobile:/usr/local/ads5/bin# ps axf | grep ads_resolver
5583 pts/2 S 0:00 ./ads_resolver main.cfg
5584 pts/2 Zl 0:36 \_ [ads_resolver] <defunct>
mobile:/usr/local/ads5/bin# gdb ads_resolver 5584
GNU gdb 6.8-debian
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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 "i486-linux-gnu"...
Attaching to program: /usr/local/ads5/bin/ads_resolver, process 5584
ptrace: Operation not permitted.
/usr/local/ads5/bin/5584: No such file or directory.
(gdb) info threads
No registers.
有我的代碼,創建殭屍進程:
template < class T>
int Monitor <T>::Start()
{
pid_t pid;
pid = fork();
if(pid == 0)
{
IgnoreSignal::IgnoreDaemon();
signal(SIGCHLD,Monitor<T>::ReStart);
pid = fork();
if(pid == 0)
{
IgnoreSignal::IgnoreAll();
T worker;
worker.Run();
}
while(1)
{
sleep(60);
}
}
return 0;
}
嘗試'須藤gdb',雖然一個解釋你將不得不等待別人有更多的Unix知識的答案。 – 2011-03-30 12:12:44