/* * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved. * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this list of * conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, this list * of conditions and the following disclaimer in the documentation and/or other materials * provided with the distribution. * * 3. Neither the name of the copyright holder nor the names of its contributors may be used * to endorse or promote products derived from this software without specific prior written * permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _LOS_PROCESS_PRI_H #define _LOS_PROCESS_PRI_H #include "los_task_pri.h" #include "los_sem_pri.h" #include "los_process.h" #include "los_vm_map.h" #if (LOSCFG_KERNEL_LITEIPC == YES) #include "hm_liteipc.h" #endif #ifdef LOSCFG_SECURITY_CAPABILITY #include "capability_type.h" #endif #ifdef LOSCFG_SECURITY_VID #include "vid_type.h" #endif #include "sys/resource.h" #ifdef __cplusplus #if __cplusplus extern "C" { #endif /* __cplusplus */ #endif /* __cplusplus */ #define OS_PCB_NAME_LEN OS_TCB_NAME_LEN #ifdef LOSCFG_SECURITY_CAPABILITY #define OS_GROUPS_NUMBER_MAX 256 typedef struct { UINT32 userID; UINT32 effUserID; UINT32 gid; UINT32 effGid; UINT32 groupNumber; UINT32 groups[1]; } User; #endif typedef struct { UINT32 groupID; /**< Process group ID is the PID of the process that created the group */ LOS_DL_LIST processList; /**< List of processes under this process group */ LOS_DL_LIST exitProcessList; /**< List of closed processes (zombie processes) under this group */ LOS_DL_LIST groupList; /**< Process group list */ } ProcessGroup; typedef struct ProcessCB { CHAR processName[OS_PCB_NAME_LEN]; /**< Process name */ UINT32 processID; /**< Process ID */ UINT16 processStatus; /**< [15:4] Process Status; [3:0] The number of threads currently running in the process */ UINT16 priority; /**< Process priority */ UINT16 consoleID; /**< The console id of task belongs */ UINT16 processMode; /**< Kernel Mode:0; User Mode:1; */ UINT16 readyTaskNum; /**< The number of ready tasks in the current process */ UINT32 parentProcessID; /**< Parent process ID */ UINT32 exitCode; /**< Process exit status */ LOS_DL_LIST pendList; /**< Block list to which the process belongs */ LOS_DL_LIST childrenList; /**< Children process list */ LOS_DL_LIST exitChildList; /**< Exit children process list */ LOS_DL_LIST siblingList; /**< Linkage in parent's children list */ ProcessGroup *group; /**< Process group to which a process belongs */ LOS_DL_LIST subordinateGroupList; /**< Linkage in group list */ UINT32 threadGroupID; /**< Which thread group , is the main thread ID of the process */ LOS_DL_LIST threadSiblingList; /**< List of threads under this process */ volatile UINT32 threadNumber; /**< Number of threads alive under this process */ UINT32 threadCount; /**< Total number of threads created under this process */ LOS_DL_LIST waitList; /**< The process holds the waitLits to support wait/waitpid */ #if (LOSCFG_KERNEL_SMP == YES) UINT32 timerCpu; /**< CPU core number of this task is delayed or pended */ #endif UINTPTR sigHandler; /**< Signal handler */ sigset_t sigShare; /**< Signal share bit */ #if (LOSCFG_KERNEL_LITEIPC == YES) ProcIpcInfo ipcInfo; /**< Memory pool for lite ipc */ #endif #ifdef LOSCFG_KERNEL_VM LosVmSpace *vmSpace; /**< VMM space for processes */ #endif #ifdef LOSCFG_FS_VFS struct files_struct *files; /**< Files held by the process */ #endif timer_t timerID; /**< ITimer */ #ifdef LOSCFG_SECURITY_CAPABILITY User *user; UINT32 capability; #endif #ifdef LOSCFG_SECURITY_VID TimerIdMap timerIdMap; #endif #ifdef LOSCFG_DRIVERS_TZDRIVER struct file *execFile; /**< Exec bin of the process */ #endif mode_t umask; #ifdef LOSCFG_KERNEL_CPUP OsCpupBase processCpup; /**< Process cpu usage */ #endif struct rlimit pl_rlimit[RLIM_NLIMITS]; } LosProcessCB; #define CLONE_VM 0x00000100 #define CLONE_FS 0x00000200 #define CLONE_FILES 0x00000400 #define CLONE_SIGHAND 0x00000800 #define CLONE_PTRACE 0x00002000 #define CLONE_VFORK 0x00004000 #define CLONE_PARENT 0x00008000 #define CLONE_THREAD 0x00010000 #define OS_PCB_FROM_PID(processID) (((LosProcessCB *)g_processCBArray) + (processID)) #define OS_PCB_FROM_SIBLIST(ptr) LOS_DL_LIST_ENTRY((ptr), LosProcessCB, siblingList) #define OS_PCB_FROM_PENDLIST(ptr) LOS_DL_LIST_ENTRY((ptr), LosProcessCB, pendList) /** * @ingroup los_process * Flag that indicates the process or process control block status. * * The process is created but does not participate in scheduling. */ #define OS_PROCESS_STATUS_INIT 0x0010U /** * @ingroup los_process * Flag that indicates the process or process control block status. * * The process is ready. */ #define OS_PROCESS_STATUS_READY 0x0020U /** * @ingroup los_process * Flag that indicates the process or process control block status. * * The process is running. */ #define OS_PROCESS_STATUS_RUNNING 0x0040U /** * @ingroup los_process * Flag that indicates the process or process control block status. * * The process is pending */ #define OS_PROCESS_STATUS_PENDING 0x0080U /** * @ingroup los_process * Flag that indicates the process or process control block status. * * The process is run out but the resources occupied by the process are not recovered. */ #define OS_PROCESS_STATUS_ZOMBIES 0x100U /** * @ingroup los_process * Flag that indicates the process or process control block status. * * The number of task currently running under the process, it only works with multiple cores. */ #define OS_PROCESS_RUNTASK_COUNT_MASK 0x000FU /** * @ingroup los_process * Flag that indicates the process or process control block status. * * The process status mask. */ #define OS_PROCESS_STATUS_MASK 0xFFF0U /** * @ingroup los_process * Flag that indicates the process or process control block status. * * The process status equal this is process control block unused, * coexisting with OS_PROCESS_STATUS_ZOMBIES means that the control block is not recovered. */ #define OS_PROCESS_FLAG_UNUSED 0x0200U /** * @ingroup los_process * Flag that indicates the process or process control block status. * * The process has been call exit, it only works with multiple cores. */ #define OS_PROCESS_FLAG_EXIT 0x0400U /** * @ingroup los_process * Flag that indicates the process or process control block status. * * The process is the leader of the process group. */ #define OS_PROCESS_FLAG_GROUP_LEADER 0x0800U /** * @ingroup los_process * Flag that indicates the process or process control block status. * * The process has performed the exec operation. */ #define OS_PROCESS_FLAG_ALREADY_EXEC 0x1000U /** * @ingroup los_process * Flag that indicates the process or process control block status. * * The process is dying or already dying. */ #define OS_PROCESS_STATUS_INACTIVE (OS_PROCESS_FLAG_EXIT | OS_PROCESS_STATUS_ZOMBIES) /** * @ingroup los_process * Used to check if the process control block is unused. */ STATIC INLINE BOOL OsProcessIsUnused(const LosProcessCB *processCB) { return ((processCB->processStatus & OS_PROCESS_FLAG_UNUSED) != 0); } /** * @ingroup los_process * Used to check if the process is inactive. */ STATIC INLINE BOOL OsProcessIsInactive(const LosProcessCB *processCB) { return ((processCB->processStatus & (OS_PROCESS_FLAG_UNUSED | OS_PROCESS_STATUS_INACTIVE)) != 0); } /** * @ingroup los_process * Used to check if the process is dead. */ STATIC INLINE BOOL OsProcessIsDead(const LosProcessCB *processCB) { return ((processCB->processStatus & (OS_PROCESS_FLAG_UNUSED | OS_PROCESS_STATUS_ZOMBIES)) != 0); } /** * @ingroup los_process * The highest priority of a kernel mode process. */ #define OS_PROCESS_PRIORITY_HIGHEST 0 /** * @ingroup los_process * The lowest priority of a kernel mode process */ #define OS_PROCESS_PRIORITY_LOWEST 31 /** * @ingroup los_process * The highest priority of a user mode process. */ #define OS_USER_PROCESS_PRIORITY_HIGHEST 10 /** * @ingroup los_process * The lowest priority of a user mode process */ #define OS_USER_PROCESS_PRIORITY_LOWEST OS_PROCESS_PRIORITY_LOWEST /** * @ingroup los_process * User state root process default priority */ #define OS_PROCESS_USERINIT_PRIORITY 28 #define OS_GET_PROCESS_STATUS(status) ((UINT16)((UINT16)(status) & OS_PROCESS_STATUS_MASK)) #define OS_PROCESS_GET_RUNTASK_COUNT(status) ((UINT16)(((UINT16)(status)) & OS_PROCESS_RUNTASK_COUNT_MASK)) #define OS_PROCESS_RUNTASK_COUNT_ADD(status) ((UINT16)(((UINT16)(status)) & OS_PROCESS_STATUS_MASK) | \ ((OS_PROCESS_GET_RUNTASK_COUNT(status) + 1) & OS_PROCESS_RUNTASK_COUNT_MASK)) #define OS_PROCESS_RUNTASK_COUNT_DEC(status) ((UINT16)(((UINT16)(status)) & OS_PROCESS_STATUS_MASK) | \ ((OS_PROCESS_GET_RUNTASK_COUNT(status) - 1) & OS_PROCESS_RUNTASK_COUNT_MASK)) #define OS_TASK_DEFAULT_STACK_SIZE 0x2000 #define OS_USER_TASK_SYSCALL_STACK_SIZE 0x3000 #define OS_USER_TASK_STACK_SIZE 0x100000 #define OS_KERNEL_MODE 0x0U #define OS_USER_MODE 0x1U STATIC INLINE BOOL OsProcessIsUserMode(const LosProcessCB *processCB) { return (processCB->processMode == OS_USER_MODE); } #define LOS_SCHED_NORMAL 0U #define LOS_SCHED_FIFO 1U #define LOS_SCHED_RR 2U #define LOS_SCHED_IDLE 3U #define LOS_PRIO_PROCESS 0U #define LOS_PRIO_PGRP 1U #define LOS_PRIO_USER 2U #define OS_USER_PRIVILEGE_PROCESS_GROUP 1U #define OS_KERNEL_PROCESS_GROUP 2U /* * Process exit code * 31 15 8 7 0 * | | exit code | core dump | signal | */ #define OS_PRO_EXIT_OK 0 STATIC INLINE VOID OsProcessExitCodeCoreDumpSet(LosProcessCB *processCB) { processCB->exitCode |= 0x80U; } STATIC INLINE VOID OsProcessExitCodeSignalSet(LosProcessCB *processCB, UINT32 signal) { processCB->exitCode |= signal & 0x7FU; } STATIC INLINE VOID OsProcessExitCodeSignalClear(LosProcessCB *processCB) { processCB->exitCode &= (~0x7FU); } STATIC INLINE BOOL OsProcessExitCodeSignalIsSet(LosProcessCB *processCB) { return (processCB->exitCode) & 0x7FU; } STATIC INLINE VOID OsProcessExitCodeSet(LosProcessCB *processCB, UINT32 code) { processCB->exitCode |= ((code & 0x000000FFU) << 8U) & 0x0000FF00U; /* 8: Move 8 bits to the left, exitCode */ } extern LosProcessCB *g_processCBArray; extern UINT32 g_processMaxNum; #define OS_PID_CHECK_INVALID(pid) (((UINT32)(pid)) >= g_processMaxNum) STATIC INLINE BOOL OsProcessIDUserCheckInvalid(UINT32 pid) { return ((pid >= g_processMaxNum) || (pid == 0)); } STATIC INLINE LosProcessCB *OsCurrProcessGet(VOID) { UINT32 intSave; intSave = LOS_IntLock(); LosProcessCB *runProcess = (LosProcessCB *)OsPercpuGet()->runProcess; LOS_IntRestore(intSave); return runProcess; } STATIC INLINE VOID OsCurrProcessSet(const LosProcessCB *process) { OsPercpuGet()->runProcess = (UINTPTR)process; } #ifdef LOSCFG_SECURITY_CAPABILITY STATIC INLINE User *OsCurrUserGet(VOID) { User *user = NULL; UINT32 intSave; intSave = LOS_IntLock(); user = OsCurrProcessGet()->user; LOS_IntRestore(intSave); return user; } #endif /* * return immediately if no child has exited. */ #define LOS_WAIT_WNOHANG (1 << 0U) /* * return if a child has stopped (but not traced via ptrace(2)). * Status for traced children which have stopped is provided even * if this option is not specified. */ #define LOS_WAIT_WUNTRACED (1 << 1U) /* * return if a stopped child has been resumed by delivery of SIGCONT. * (For Linux-only options, see below.) */ #define LOS_WAIT_WCONTINUED (1 << 3U) /* * Indicates that you are already in a wait state */ #define OS_PROCESS_WAIT (1 << 15U) /* * Wait for any child process to finish */ #define OS_PROCESS_WAIT_ANY OS_TASK_WAIT_ANYPROCESS /* * Wait for the child process specified by the pid to finish */ #define OS_PROCESS_WAIT_PRO OS_TASK_WAIT_PROCESS /* * Waits for any child process in the specified process group to finish. */ #define OS_PROCESS_WAIT_GID OS_TASK_WAIT_GID #define OS_PROCESS_INFO_ALL 1 #define OS_PROCESS_DEFAULT_UMASK 0022 extern UINTPTR __user_init_entry; extern UINTPTR __user_init_bss; extern UINTPTR __user_init_end; extern UINTPTR __user_init_load_addr; extern UINT32 OsSystemProcessCreate(VOID); extern VOID OsProcessCBRecyleToFree(VOID); extern VOID OsProcessResourcesToFree(LosProcessCB *processCB); extern VOID OsProcessExit(LosTaskCB *runTask, INT32 status); extern UINT32 OsUserInitProcess(VOID); extern VOID OsTaskSchedQueueDequeue(LosTaskCB *taskCB, UINT16 status); extern VOID OsTaskSchedQueueEnqueue(LosTaskCB *taskCB, UINT16 status); extern INT32 OsClone(UINT32 flags, UINTPTR sp, UINT32 size); extern UINT32 OsExecRecycleAndInit(LosProcessCB *processCB, const CHAR *name, LosVmSpace *oldAspace, UINTPTR oldFiles); extern UINT32 OsExecStart(const TSK_ENTRY_FUNC entry, UINTPTR sp, UINTPTR mapBase, UINT32 mapSize); extern UINT32 OsSetProcessName(LosProcessCB *processCB, const CHAR *name); extern INT32 OsSetProcessScheduler(INT32 which, INT32 pid, UINT16 prio, UINT16 policy); extern INT32 OsGetProcessPriority(INT32 which, INT32 pid); extern VOID *OsUserStackAlloc(UINT32 processID, UINT32 *size); extern UINT32 OsGetUserInitProcessID(VOID); extern UINT32 OsGetIdleProcessID(VOID); extern INT32 OsSetProcessGroupID(UINT32 pid, UINT32 gid); extern INT32 OsSetCurrProcessGroupID(UINT32 gid); extern UINT32 OsGetKernelInitProcessID(VOID); extern VOID OsSetSigHandler(UINTPTR addr); extern UINTPTR OsGetSigHandler(VOID); extern VOID OsWaitWakeTask(LosTaskCB *taskCB, UINT32 wakePID); #ifdef __cplusplus #if __cplusplus } #endif /* __cplusplus */ #endif /* __cplusplus */ #endif