pthread_t到gdb线程id
有没有人知道从pthread_t到GDB用信息线程显示的方法？
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 有谁知道我怎么弄清楚这是哪个线程？ 它似乎是22768，但我的线程都没有那么低。
pthread_t的值与您在GDB中看到的该线程的系统相关线程ID（在Linux gettid(2) ）不同。
AFAIK，没有任何function可以在两者之间进行转换。 你需要自己跟踪。
新版本的GDB实际上在info thread输出pthread_t的值，使得pthread_t与线程号的关联变得微不足道。
例如，使用GDB 7.0 ：
cat tc #include void *fn(void *p) { sleep(180); } int main() { pthread_t pth1, pth2; pthread_create(&pth1, 0, fn, 0); pthread_create(&pth2, 0, fn, 0); pthread_join(pth1, 0); return 0; } gcc -g -m32 -pthread tc && gdb -q ../a.out (gdb) r [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". [New Thread 0xf7e56b90 (LWP 25343)] [New Thread 0xf7655b90 (LWP 25344)] Program received signal SIGINT, Interrupt. 0xffffe405 in __kernel_vsyscall () (gdb) info thread 3 Thread 0xf7655b90 (LWP 25344) 0xffffe405 in __kernel_vsyscall () 2 Thread 0xf7e56b90 (LWP 25343) 0xffffe405 in __kernel_vsyscall () * 1 Thread 0xf7e576b0 (LWP 25338) 0xffffe405 in __kernel_vsyscall () (gdb) up 2 #2 0x080484e2 in main () at tc:13 13 pthread_join(pth1, 0); (gdb) p/x pth1 $1 = 0xf7e56b90 ## this is thread #2 above (gdb) p/x pth2 $2 = 0xf7655b90 ## this is thread #3 above