函数逻辑报告 |
Source Code:fs\exec.c |
Create Date:2022-07-29 10:33:50 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
首页 | 函数Tree |
注解内核,赢得工具 | 下载SCCT | English |
函数名称:This function makes sure the current process has its own signal table,* so that flush_signal_handlers can later reset the handlers without* disturbing other processes. (Other processes might share the signal* table via the CLONE_SIGHAND option to clone().)
函数原型:static int de_thread(struct task_struct *tsk)
返回类型:int
参数:
类型 | 参数 | 名称 |
---|---|---|
struct task_struct * | tsk |
1063 | oldsighand等于sighand |
1066 | 如果thread_group_empty(tsk)则转到:no_thread_group |
1072 | spin_lock_irq(lock) |
1078 | spin_unlock_irq(lock) |
1079 | 返回:负EAGAIN |
1082 | group_exit_task等于tsk |
1089 | spin_unlock_irq(lock) |
1090 | 进程调度 |
1091 | 如果__fatal_signal_pending(tsk)则转到:killed |
1093 | spin_lock_irq(lock) |
1095 | spin_unlock_irq(lock) |
1102 | 如果非thread_group_leader(tsk)则 |
1103 | leader等于group_leader |
1105 | 循环 |
1106 | 开始摘除线程组 |
1107 | write_lock_irq( & tasklist_lock) |
1113 | 如果此条件成立可能性大(为编译器优化)(exit_state)则退出 |
1116 | write_unlock_irq( & tasklist_lock) |
1117 | 摘除线程组完成 |
1118 | 进程调度 |
1119 | 如果__fatal_signal_pending(tsk)则转到:killed |
1133 | start_time等于start_time |
1134 | start_boottime等于start_boottime |
1136 | BUG_ON(!same_thread_group(leader, tsk)) |
1137 | BUG_ON(Do to the insanities of de_thread it is possible for a process* to have the pid of the thread group leader without actually being* the thread group leader) |
1151 | change_pid(tsk, PIDTYPE_PID, task_pid(leader)) |
1156 | 更新RCU锁项 |
1157 | list_replace_init( & sibling, & sibling) |
1159 | group_leader等于tsk |
1160 | group_leader等于tsk |
1162 | exit_signal等于SIGCHLD |
1163 | exit_signal等于负1 |
1165 | BUG_ON(exit_state != EXIT_ZOMBIE) |
1173 | 如果此条件成立可能性小(为编译器优化)(ptrace)则__wake_up_parent(leader, parent) |
1175 | write_unlock_irq( & tasklist_lock) |
1176 | 摘除线程组完成 |
1178 | release_task(leader) |
1181 | group_exit_task = NULL |
1184 | no_thread_group : |
1186 | exit_signal等于SIGCHLD |
1199 | newsighand等于分配高速缓存区 |
1200 | 如果非newsighand则返回:负ENOMEM |
1207 | write_lock_irq( & tasklist_lock) |
1208 | 加自旋锁 |
1210 | 自旋锁解锁 |
1211 | write_unlock_irq( & tasklist_lock) |
1213 | __cleanup_sighand(oldsighand) |
1216 | BUG_ON(!thread_group_leader(tsk)) |
1217 | 返回:0 |
1219 | killed : |
1221 | read_lock( & tasklist_lock) |
1222 | group_exit_task = NULL |
1224 | read_unlock( & tasklist_lock) |
1225 | 返回:负EAGAIN |
名称 | 描述 |
---|---|
flush_old_exec | Calling this is the point of no return. None of the failures will be* seen by userspace since either the process is already taking a fatal* signal (via de_thread() or coredump), or will have SEGV raised |
源代码转换工具 开放的插件接口 | X |
---|---|
支持:c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现:逻辑报告 代码生成和批量转换代码 |