pthread_t 到 gdb 线程 id [英] pthread_t to gdb thread id

问题描述

有谁知道从 pthread_t 到 GDB 显示的信息线程的方法吗?

Does anyone know a way to go from a pthread_t to what GDB displays with info threads?

所以我有:

(gdb) info threads
  37 Thread 22887  0xb7704422 in __kernel_vsyscall ()
  36 Thread 22926  0xb7704422 in __kernel_vsyscall ()
  35 Thread 22925  0xb7704422 in __kernel_vsyscall ()
  34 Thread 22924  0xb7704422 in __kernel_vsyscall ()
  33 Thread 22922  0xb7704422 in __kernel_vsyscall ()
  32 Thread 22921  0xb7704422 in __kernel_vsyscall ()

(gdb) p m_messageQueue->m_creationThread
$3 = 2694822768
(gdb) p/x m_messageQueue->m_creationThread
$4 = 0xa09fbb70

有谁知道我怎么知道这是哪个线程?它似乎是 22768，但我的线程都没有这么低.

Does anyone know how I figure out which thread this is? It would appear to be 22768, but none of my threads go that low.

推荐答案

pthread_t 的值和你看到的那个线程的系统相关线程id(在Linux gettid(2))不同在 GDB 中.

The value of pthread_t is not the same as that thread's system dependent thread id (in Linux gettid(2)) which you see in GDB.

AFAIK，没有任何函数可以在两者之间进行转换.您需要自己跟踪.

AFAIK, there isn't any function to convert between the two. You need to keep track of that yourself.

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