[smart/syscall] fix exit(2) and add exit_group(2) (#8005)
Signed-off-by: shell <smokewood@qq.com> Signed-off-by: shell <wangxiaoyao@rt-thread.com> Signed-off-by: Shell <smokewood@qq.com>
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47b183a297
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@ -122,7 +122,7 @@ void *arch_signal_ucontext_restore(rt_base_t user_sp)
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else
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{
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LOG_I("User frame corrupted during signal handling\nexiting...");
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sys_exit(EXIT_FAILURE);
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sys_exit_group(EXIT_FAILURE);
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}
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return (char *)&new_sp->frame + sizeof(struct rt_hw_exp_stack);
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@ -158,7 +158,7 @@ void *arch_signal_ucontext_save(rt_base_t user_sp, siginfo_t *psiginfo,
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else
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{
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LOG_I("%s: User stack overflow", __func__);
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sys_exit(EXIT_FAILURE);
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sys_exit_group(EXIT_FAILURE);
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}
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return new_sp;
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@ -152,7 +152,7 @@ void *arch_signal_ucontext_restore(rt_base_t user_sp)
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else
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{
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LOG_I("User frame corrupted during signal handling\nexiting...");
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sys_exit(EXIT_FAILURE);
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sys_exit_group(EXIT_FAILURE);
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}
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return (void *)&new_sp->frame;
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@ -191,7 +191,7 @@ void *arch_signal_ucontext_save(rt_base_t lr, siginfo_t *psiginfo,
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else
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{
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LOG_I("%s: User stack overflow", __func__);
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sys_exit(EXIT_FAILURE);
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sys_exit_group(EXIT_FAILURE);
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}
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return new_sp;
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@ -272,7 +272,7 @@ void *arch_signal_ucontext_restore(rt_base_t user_sp)
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else
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{
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LOG_I("User frame corrupted during signal handling\nexiting...");
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sys_exit(EXIT_FAILURE);
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sys_exit_group(EXIT_FAILURE);
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}
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return (void *)&new_sp->frame;
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@ -314,7 +314,7 @@ void *arch_signal_ucontext_save(int signo, siginfo_t *psiginfo,
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else
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{
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LOG_I("%s: User stack overflow", __func__);
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sys_exit(EXIT_FAILURE);
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sys_exit_group(EXIT_FAILURE);
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}
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return new_sp;
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@ -538,7 +538,7 @@ void lwp_thread_signal_catch(void *exp_frame)
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if (handler == LWP_SIG_ACT_DFL)
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{
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LOG_D("%s: default handler; and exit", __func__);
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sys_exit(0);
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sys_exit_group(0);
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}
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/**
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@ -318,14 +318,14 @@ static void _crt_thread_entry(void *parameter)
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#endif /* ARCH_MM_MMU */
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}
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/* thread/process */
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void sys_exit(int value)
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/* exit group */
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sysret_t sys_exit_group(int value)
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{
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rt_base_t level;
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rt_thread_t tid, main_thread;
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struct rt_lwp *lwp;
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LOG_D("thread/process exit.");
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LOG_D("process exit");
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tid = rt_thread_self();
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lwp = (struct rt_lwp *)tid->lwp;
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@ -370,15 +370,51 @@ void sys_exit(int value)
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#endif /* ARCH_MM_MMU */
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rt_thread_delete(tid);
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rt_schedule();
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rt_hw_interrupt_enable(level);
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rt_schedule();
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return;
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/* never reach here */
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return 0;
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}
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/* exit group */
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void sys_exit_group(int status)
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/* thread exit */
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void sys_exit(int status)
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{
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rt_base_t level;
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rt_thread_t tid, main_thread;
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struct rt_lwp *lwp;
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LOG_D("thread exit");
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tid = rt_thread_self();
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lwp = (struct rt_lwp *)tid->lwp;
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level = rt_hw_interrupt_disable();
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#ifdef ARCH_MM_MMU
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if (tid->clear_child_tid)
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{
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int t = 0;
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int *clear_child_tid = tid->clear_child_tid;
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tid->clear_child_tid = RT_NULL;
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lwp_put_to_user(clear_child_tid, &t, sizeof t);
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sys_futex(clear_child_tid, FUTEX_WAKE, 1, RT_NULL, RT_NULL, 0);
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}
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main_thread = rt_list_entry(lwp->t_grp.prev, struct rt_thread, sibling);
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if (main_thread == tid && tid->sibling.prev == &lwp->t_grp)
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{
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lwp_terminate(lwp);
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lwp_wait_subthread_exit();
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lwp->lwp_ret = status;
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}
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#endif /* ARCH_MM_MMU */
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rt_thread_delete(tid);
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rt_hw_interrupt_enable(level);
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rt_schedule();
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return;
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}
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@ -1842,6 +1878,7 @@ sysret_t _sys_fork(void)
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thread->user_stack_size = self_thread->user_stack_size;
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thread->signal.sigset_mask = self_thread->signal.sigset_mask;
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thread->thread_idr = self_thread->thread_idr;
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thread->clear_child_tid = self_thread->clear_child_tid;
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thread->lwp = (void *)lwp;
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thread->tid = tid;
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@ -45,6 +45,7 @@ const char *lwp_get_syscall_name(rt_uint32_t number);
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const void *lwp_get_sys_api(rt_uint32_t number);
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void sys_exit(int value);
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sysret_t sys_exit_group(int status);
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ssize_t sys_read(int fd, void *buf, size_t nbyte);
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ssize_t sys_write(int fd, const void *buf, size_t nbyte);
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off_t sys_lseek(int fd, off_t offset, int whence);
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@ -34,7 +34,6 @@ extern long list_thread(void);
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#include <lwp_core_dump.h>
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#endif
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void sys_exit(int value);
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void check_user_fault(struct rt_hw_exp_stack *regs, uint32_t pc_adj, char *info)
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{
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uint32_t mode = regs->cpsr;
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@ -46,7 +45,7 @@ void check_user_fault(struct rt_hw_exp_stack *regs, uint32_t pc_adj, char *info)
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lwp_core_dump(regs, pc_adj);
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#endif
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backtrace((unsigned long)regs->pc, (unsigned long)regs->x30, (unsigned long)regs->x29);
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sys_exit(-1);
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sys_exit_group(-1);
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}
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}
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@ -28,7 +28,6 @@ extern long list_thread(void);
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#include <lwp_core_dump.h>
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#endif
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void sys_exit(int value);
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void check_user_fault(struct rt_hw_exp_stack *regs, uint32_t pc_adj, char *info)
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{
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uint32_t mode = regs->cpsr;
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@ -39,7 +38,7 @@ void check_user_fault(struct rt_hw_exp_stack *regs, uint32_t pc_adj, char *info)
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#ifdef LWP_USING_CORE_DUMP
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lwp_core_dump(regs, pc_adj);
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#endif
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sys_exit(-1);
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sys_exit_group(-1);
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}
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}
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@ -45,7 +45,7 @@ void syscall_handler(struct rt_hw_stack_frame *regs)
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if (syscallfunc == RT_NULL)
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{
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LOG_E("unsupported syscall!\n");
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sys_exit(-1);
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sys_exit_group(-1);
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}
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#if DBG_LVL >= DBG_INFO
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@ -225,7 +225,7 @@ void handle_user(rt_size_t scause, rt_size_t stval, rt_size_t sepc, struct rt_hw
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LOG_E("User Fault, killing thread: %s", rt_thread_self()->parent.name);
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EXIT_TRAP;
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sys_exit(-1);
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sys_exit_group(-1);
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}
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#endif
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@ -45,7 +45,7 @@ void syscall_handler(struct rt_hw_stack_frame *regs)
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if (syscallfunc == RT_NULL)
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{
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LOG_E("unsupported syscall!\n");
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sys_exit(-1);
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sys_exit_group(-1);
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}
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#if DBG_LVL >= DBG_INFO
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@ -222,7 +222,7 @@ void handle_user(rt_size_t scause, rt_size_t stval, rt_size_t sepc, struct rt_hw
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LOG_E("User Fault, killing thread: %s", rt_thread_self()->parent.name);
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EXIT_TRAP;
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sys_exit(-1);
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sys_exit_group(-1);
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}
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#endif
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