参考：

kernel - Why is the name of a process in /proc/PID/status not matching package name or ps command - Stack Overflowhttps://stackoverflow.com/questions/14176058/why-is-the-name-of-a-process-in-proc-pid-status-not-matching-package-name-or-ps

设置和查看线程名：

#include <stdio.h>
#include <stdlib.h>
#include <sys/prctl.h>
#include <unistd.h>
#include <pthread.h>
#include <string.h>void* thread1(void* a)
{prctl(PR_SET_NAME,"THREAD1");while(1) sleep(1000);
}void* thread2(void* a)
{prctl(PR_SET_NAME,"THREAD2");while(1) sleep(1000);
}int main()
{pthread_t th1,th2;pthread_create(&th1,NULL,thread1,NULL);pthread_create(&th2,NULL,thread2,NULL);char name[1024]={0};prctl(PR_GET_NAME, (unsigned long)name);printf("prctl api %s\n", name);memset(name,0,sizeof(name));pthread_getname_np(pthread_self(), name, 1024);printf("pthread api %s\n", name);int ret = prctl(PR_SET_NAME,"THREADMAIN");printf("-------ret=%d\n",ret);memset(name,0,sizeof(name));prctl(PR_GET_NAME, (unsigned long)name);printf("prctl api %s\n", name);memset(name,0,sizeof(name));pthread_getname_np(pthread_self(), name, 1024);printf("pthread api %s\n", name);//printf("/\n");memset(name,0,sizeof(name));prctl(PR_GET_NAME, (unsigned long)name);printf("prctl api %s\n", name);memset(name,0,sizeof(name));pthread_getname_np(pthread_self(), name, 1024);printf("pthread api  %s\n", name);int rc = pthread_setname_np(pthread_self(), "xxxx");printf("-------rc=%d\n",rc);memset(name,0,sizeof(name));prctl(PR_GET_NAME, (unsigned long)name);printf("prctl api %s\n", name);memset(name,0,sizeof(name));pthread_getname_np(pthread_self(), name, 1024);printf("pthread api  %s\n", name);while(1) sleep(1000);
}