los_hidumper.c 文件参考

浏览源代码.

函数
STATIC INT32	HiDumperOpen (struct file *filep)
STATIC INT32	HiDumperClose (struct file *filep)
STATIC INT32	HiDumperIoctl (struct file *filep, INT32 cmd, unsigned long arg)
VOID	OsShellCmdSystemInfoGet (VOID)
	查看系统资源使用情况 更多...
UINT32	OsShellCmdFree (INT32 argc, const CHAR *argv[])
UINT32	OsShellCmdUname (INT32 argc, const CHAR *argv[])
UINT32	OsShellCmdDumpPmm (VOID)
	查看系统内存物理页及pagecache物理页使用情况 , Debug版本才具备的命令 # pmm 更多...
static void	DumpSysInfo (void)
static void	DoDumpCpuUsageUnsafe (CPUP_INFO_S *processCpupAll, CPUP_INFO_S *processCpup10s, CPUP_INFO_S *processCpup1s)
static void	DumpCpuUsageUnsafe (void)
static void	DumpMemUsage (void)
static void	DumpTaskInfo (void)
static void	PrintFileData (INT32 fd)
static void	PrintFile (const char *filePath, const char *pHeader)
static void	DumpFaultLog (void)
static void	DumpMemData (struct MemDumpParam *param)
static void	InjectKernelCrash (void)
static void	RegisterCommonAdapter (void)
int	HiDumperRegisterAdapter (struct HiDumperAdapter *pAdapter)
int	OsHiDumperDriverInit (void)
	LOS_MODULE_INIT (OsHiDumperDriverInit, LOS_INIT_LEVEL_KMOD_EXTENDED)

变量
static struct HiDumperAdapter	g_adapter
STATIC struct file_operations_vfs	g_hidumperDevOps

函数说明

DoDumpCpuUsageUnsafe()

static void DoDumpCpuUsageUnsafe ( CPUP_INFO_S *  processCpupAll, CPUP_INFO_S *  processCpup10s, CPUP_INFO_S *  processCpup1s  )

static

在文件 los_hidumper.c 第 145 行定义.

{
    UINT32 pid;
 
    PRINTK("%-32s PID CPUUSE CPUUSE10S CPUUSE1S\n", "PName");
    for (pid = 0; pid < g_processMaxNum; pid++) {
        LosProcessCB *processCB = g_processCBArray + pid;
        if (OsProcessIsUnused(processCB)) {
            continue;
        }
        PRINTK("%-32s %u %5u.%1u%8u.%1u%7u.%-1u\n",
            processCB->processName, processCB->processID,
            processCpupAll[pid].usage / LOS_CPUP_PRECISION_MULT,
            processCpupAll[pid].usage % LOS_CPUP_PRECISION_MULT,
            processCpup10s[pid].usage / LOS_CPUP_PRECISION_MULT,
            processCpup10s[pid].usage % LOS_CPUP_PRECISION_MULT,
            processCpup1s[pid].usage / LOS_CPUP_PRECISION_MULT,
            processCpup1s[pid].usage % LOS_CPUP_PRECISION_MULT);
    }
}

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DumpCpuUsageUnsafe()

static void DumpCpuUsageUnsafe ( void  )

static

在文件 los_hidumper.c 第 169 行定义.

{
    PRINTK("\n%s\n", CPU_USAGE_HEADER);
#ifdef LOSCFG_KERNEL_CPUP
    UINT32 size;
    CPUP_INFO_S *processCpup = NULL;
    CPUP_INFO_S *processCpupAll = NULL;
    CPUP_INFO_S *processCpup10s = NULL;
    CPUP_INFO_S *processCpup1s = NULL;
 
    size = sizeof(*processCpup) * g_processMaxNum * CPUP_TYPE_COUNT;
    processCpup = LOS_MemAlloc(m_aucSysMem1, size);
    if (processCpup == NULL) {
        PRINT_ERR("func: %s, LOS_MemAlloc failed, Line: %d\n", __func__, __LINE__);
        return;
    }
    processCpupAll = processCpup;
    processCpup10s = processCpupAll + g_processMaxNum;
    processCpup1s = processCpup10s + g_processMaxNum;
    (VOID)memset_s(processCpup, size, 0, size);
    LOS_GetAllProcessCpuUsage(CPUP_ALL_TIME, processCpupAll, g_processMaxNum * sizeof(CPUP_INFO_S));
    LOS_GetAllProcessCpuUsage(CPUP_LAST_TEN_SECONDS, processCpup10s, g_processMaxNum * sizeof(CPUP_INFO_S));
    LOS_GetAllProcessCpuUsage(CPUP_LAST_ONE_SECONDS, processCpup1s, g_processMaxNum * sizeof(CPUP_INFO_S));
    DoDumpCpuUsageUnsafe(processCpupAll, processCpup10s, processCpup1s);
    (VOID)LOS_MemFree(m_aucSysMem1, processCpup);
#else
    PRINTK("\nUnsupported!\n");
#endif
}

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DumpFaultLog()

static void DumpFaultLog ( void  )

static

在文件 los_hidumper.c 第 271 行定义.

{
#ifdef LOSCFG_BLACKBOX
    PrintFile(KERNEL_FAULT_LOG_PATH, "************kernel fault info************");
    PrintFile(USER_FAULT_LOG_PATH, "************user fault info************");
#endif
}

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DumpMemData()

static void DumpMemData ( struct MemDumpParam *  param )

static

在文件 los_hidumper.c 第 279 行定义.

{
    PRINTK("\nDumpType: %d\n", param->type);
    PRINTK("Unsupported now!\n");
}

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DumpMemUsage()

static void DumpMemUsage ( void  )

static

在文件 los_hidumper.c 第 199 行定义.

{
    PRINTK("\n%s\n", MEM_USAGE_HEADER);
#ifdef LOSCFG_SHELL
    PRINTK("Unit: KB\n");
    const char *argv[1] = {"-k"};
    (VOID)OsShellCmdFree(ARRAY_SIZE(argv), &argv[0]);
    PRINTK("%s\n", PAGE_USAGE_HEADER);
    (VOID)OsShellCmdDumpPmm();
#else
    PRINTK("\nUnsupported!\n");
#endif
}

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DumpSysInfo()

static void DumpSysInfo ( void  )

static

在文件 los_hidumper.c 第 132 行定义.

{
    PRINTK("\n%s\n", SYS_INFO_HEADER);
#ifdef LOSCFG_SHELL
    const char *argv[1] = {"-a"};
    (VOID)OsShellCmdUname(ARRAY_SIZE(argv), &argv[0]);
    (VOID)OsShellCmdSystemInfoGet();
#else
    PRINTK("\nUnsupported!\n");
#endif
}

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DumpTaskInfo()

static void DumpTaskInfo ( void  )

static

在文件 los_hidumper.c 第 213 行定义.

{
    PRINTK("\n%s\n", TASK_INFO_HEADER);
#ifdef LOSCFG_SHELL
    (VOID)OsShellCmdTskInfoGet(OS_ALL_TASK_MASK, NULL, OS_PROCESS_INFO_ALL);
#else
    PRINTK("\nUnsupported!\n");
#endif
}

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HiDumperClose()

STATIC INT32 HiDumperClose

(

struct file *

filep

)

在文件 los_hidumper.c 第 126 行定义.

{
    (VOID)filep;
    return 0;
}

HiDumperIoctl()

static INT32 HiDumperIoctl	(	struct file *	filep,
		INT32	cmd,
		unsigned long	arg
	)

在文件 los_hidumper.c 第 294 行定义.

{
    INT32 ret = 0;
 
    switch (cmd) {
        case HIDUMPER_DUMP_ALL:
            INVOKE_INTERFACE(&g_adapter, struct HiDumperAdapter, DumpSysInfo);
            INVOKE_INTERFACE(&g_adapter, struct HiDumperAdapter, DumpCpuUsage);
            INVOKE_INTERFACE(&g_adapter, struct HiDumperAdapter, DumpMemUsage);
            INVOKE_INTERFACE(&g_adapter, struct HiDumperAdapter, DumpTaskInfo);
            break;
        case HIDUMPER_CPU_USAGE:
            INVOKE_INTERFACE(&g_adapter, struct HiDumperAdapter, DumpCpuUsage);
            break;
        case HIDUMPER_MEM_USAGE:
            INVOKE_INTERFACE(&g_adapter, struct HiDumperAdapter, DumpMemUsage);
            break;
        case HIDUMPER_TASK_INFO:
            INVOKE_INTERFACE(&g_adapter, struct HiDumperAdapter, DumpTaskInfo);
            break;
        case HIDUMPER_INJECT_KERNEL_CRASH:
            INVOKE_INTERFACE(&g_adapter, struct HiDumperAdapter, InjectKernelCrash);
            break;
        case HIDUMPER_DUMP_FAULT_LOG:
            INVOKE_INTERFACE(&g_adapter, struct HiDumperAdapter, DumpFaultLog);
            break;
        case HIDUMPER_MEM_DATA:
            if (g_adapter.DumpMemData != NULL) {
                g_adapter.DumpMemData((struct MemDumpParam *)((UINTPTR)arg));
            }
            break;
        default:
            ret = EPERM;
            PRINTK("Invalid CMD: 0x%x\n", (UINT32)cmd);
            break;
    }
 
    return ret;
}

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HiDumperOpen()

STATIC INT32 HiDumperOpen

(

struct file *

filep

)

在文件 los_hidumper.c 第 120 行定义.

{
    (VOID)filep;
    return 0;
}

HiDumperRegisterAdapter()

int HiDumperRegisterAdapter

(

struct HiDumperAdapter *

pAdapter

)

在文件 los_hidumper.c 第 348 行定义.

{
    if (pAdapter == NULL) {
        PRINT_ERR("pAdapter: %p\n", pAdapter);
        return -1;
    }
 
    REPLACE_INTERFACE(&g_adapter, pAdapter, struct HiDumperAdapter, DumpSysInfo);
    REPLACE_INTERFACE(&g_adapter, pAdapter, struct HiDumperAdapter, DumpCpuUsage);
    REPLACE_INTERFACE(&g_adapter, pAdapter, struct HiDumperAdapter, DumpMemUsage);
    REPLACE_INTERFACE(&g_adapter, pAdapter, struct HiDumperAdapter, DumpTaskInfo);
    REPLACE_INTERFACE(&g_adapter, pAdapter, struct HiDumperAdapter, DumpFaultLog);
    REPLACE_INTERFACE(&g_adapter, pAdapter, struct HiDumperAdapter, DumpMemData);
    REPLACE_INTERFACE(&g_adapter, pAdapter, struct HiDumperAdapter, InjectKernelCrash);
 
    return 0;
}

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InjectKernelCrash()

static void InjectKernelCrash ( void  )

static

在文件 los_hidumper.c 第 285 行定义.

{
#ifdef LOSCFG_DEBUG_VERSION
    *((INT32 *)KERNEL_FAULT_ADDR) = KERNEL_FAULT_VALUE;
#else
    PRINTK("\nUnsupported!\n");
#endif
}

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LOS_MODULE_INIT()

LOS_MODULE_INIT	(	OsHiDumperDriverInit	,
		LOS_INIT_LEVEL_KMOD_EXTENDED
	)

OsHiDumperDriverInit()

int OsHiDumperDriverInit

(

void

)

在文件 los_hidumper.c 第 366 行定义.

{
    INT32 ret;
 
#ifdef LOSCFG_DEBUG_VERSION
    RegisterCommonAdapter();
    ret = register_driver(HIDUMPER_DEVICE, &g_hidumperDevOps, HIDUMPER_DEVICE_MODE, NULL);
    if (ret != 0) {
        PRINT_ERR("Hidumper register driver failed!\n");
        return -1;
    }
#endif
 
    return 0;
}

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OsShellCmdDumpPmm()

UINT32 OsShellCmdDumpPmm

(

VOID

)

查看系统内存物理页及pagecache物理页使用情况 , Debug版本才具备的命令 # pmm

在文件 vm_shellcmd.c 第 184 行定义.

{
    OsVmPhysDump();
 
    PathCacheMemoryDump();
    VnodeMemoryDump();
    return OS_ERROR;
}

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OsShellCmdFree()

UINT32 OsShellCmdFree	(	INT32	argc,
		const CHAR *	argv[]
	)

在文件 mempt_shellcmd.c 第 174 行定义.

{
    if (argc > 1) {
        PRINTK("\nUsage: free or free [-k/-m]\n");
        return OS_ERROR;
    }
    if (OsShellCmdFreeInfo(argc, argv) != 0) {
        return OS_ERROR;
    }
    OsShellCmdSectionInfo(argc, argv);
    return 0;
}

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OsShellCmdSystemInfoGet()

VOID OsShellCmdSystemInfoGet

(

VOID

)

查看系统资源使用情况

在文件 sysinfo_shellcmd.c 第 119 行定义.

{
    UINT8 isTaskEnable  = TRUE;
#ifdef LOSCFG_BASE_IPC_SEM
    UINT8 isSemEnable   = TRUE;
#else
    UINT8 isSemEnable   = FALSE;
#endif
#ifdef LOSCFG_BASE_IPC_QUEUE
    UINT8 isQueueEnable = TRUE;
#else
    UINT8 isQueueEnable = FALSE;
#endif
#ifdef LOSCFG_BASE_CORE_SWTMR_ENABLE
    UINT8 isSwtmrEnable = TRUE;
#else
    UINT8 isSwtmrEnable = FALSE;
#endif
//模块名称  当前使用量 最大可用量                    模块是否开启 
    PRINTK("\n   Module    Used      Total     Enabled\n");
    PRINTK("--------------------------------------------\n");
    PRINTK("   Task      %-10u%-10d%s\n",
           OsShellCmdTaskCntGet(),      //有效任务数
           LOSCFG_BASE_CORE_TSK_LIMIT,  //任务最大数 128
           SYSINFO_ENABLED(isTaskEnable));//任务是否失效 YES or NO
    PRINTK("   Sem       %-10u%-10d%s\n",
           OsShellCmdSemCntGet(),       //信号量的数量
           LOSCFG_BASE_IPC_SEM_LIMIT,   //信号量最大数 1024
           SYSINFO_ENABLED(isSemEnable));//信号量是否失效 YES or NO
    PRINTK("   Queue     %-10u%-10d%s\n",
           OsShellCmdQueueCntGet(),     //队列的数量
           LOSCFG_BASE_IPC_QUEUE_LIMIT, //队列的最大数 1024
           SYSINFO_ENABLED(isQueueEnable));//队列是否失效 YES or NO
    PRINTK("   SwTmr     %-10u%-10d%s\n",
           OsShellCmdSwtmrCntGet(),     //定时器的数量
           LOSCFG_BASE_CORE_SWTMR_LIMIT,    //定时器的总数 1024
           SYSINFO_ENABLED(isSwtmrEnable)); //定时器是否失效 YES or NO
}

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OsShellCmdUname()

UINT32 OsShellCmdUname	(	INT32	argc,
		const CHAR *	argv[]
	)

在文件 mempt_shellcmd.c 第 187 行定义.

{
    if (argc == 0) {
        PRINTK("%s\n", KERNEL_NAME);
        return 0;
    }
 
    if (argc == 1) {
        if (strcmp(argv[0], "-a") == 0) {
            PRINTK("%s %d.%d.%d.%d %s %s\n", KERNEL_NAME, KERNEL_MAJOR, KERNEL_MINOR, KERNEL_PATCH, KERNEL_ITRE,\
                __DATE__, __TIME__);
            return 0;
        } else if (strcmp(argv[0], "-s") == 0) {
            PRINTK("%s\n", KERNEL_NAME);
            return 0;
        } else if (strcmp(argv[0], "-t") == 0) {
            PRINTK("build date : %s %s\n", __DATE__, __TIME__);
            return 0;
        } else if (strcmp(argv[0], "-v") == 0) {
            PRINTK("%d.%d.%d.%d\n", KERNEL_MAJOR, KERNEL_MINOR, KERNEL_PATCH, KERNEL_ITRE);
            return 0;
        } else if (strcmp(argv[0], "--help") == 0) {
            PRINTK("-a,            print all information\n"
                   "-s,            print the kernel name\n"
                   "-t,            print the build date\n"
                   "-v,            print the kernel version\n");
            return 0;
        }
    }
 
    PRINTK("uname: invalid option %s\n"
           "Try 'uname --help' for more information.\n",
           argv[0]);
    return OS_ERROR;
}

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PrintFile()

static void PrintFile ( const char *  filePath, const char *  pHeader  )

static

在文件 los_hidumper.c 第 245 行定义.

{
#ifdef LOSCFG_FS_VFS
    int fd;
 
    if (filePath == NULL || pHeader == NULL) {
        PRINT_ERR("filePath: %p, pHeader: %p\n", filePath, pHeader);
        return;
    }
 
    fd = open(filePath, O_RDONLY);
    if (fd >= 0) {
        PRINTK("\n%s\n", pHeader);
        PrintFileData(fd);
        (void)close(fd);
    } else {
        PRINT_ERR("Open [%s] failed or there's no fault log!\n", filePath);
    }
#else
    (VOID)filePath;
    (VOID)pHeader;
    PRINT_ERR("LOSCFG_FS_VFS isn't defined!\n");
#endif
}

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PrintFileData()

static void PrintFileData ( INT32  fd )

static

在文件 los_hidumper.c 第 224 行定义.

{
#ifdef LOSCFG_FS_VFS
    CHAR buf[READ_BUF_SIZE];
 
    if (fd < 0) {
        PRINT_ERR("fd: %d!\n", fd);
        return;
    }
 
    (void)memset_s(buf, sizeof(buf), 0, sizeof(buf));
    while (read(fd, buf, sizeof(buf) - 1) > 0) {
        PRINTK("%s", buf);
        (void)memset_s(buf, sizeof(buf), 0, sizeof(buf));
    }
#else
    (VOID)fd;
    PRINT_ERR("LOSCFG_FS_VFS isn't defined!\n");
#endif
}

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RegisterCommonAdapter()

static void RegisterCommonAdapter ( void  )

static

在文件 los_hidumper.c 第 334 行定义.

{
    struct HiDumperAdapter adapter;
 
    adapter.DumpSysInfo = DumpSysInfo;
    adapter.DumpCpuUsage = DumpCpuUsageUnsafe;
    adapter.DumpMemUsage = DumpMemUsage;
    adapter.DumpTaskInfo = DumpTaskInfo;
    adapter.DumpFaultLog = DumpFaultLog;
    adapter.DumpMemData = DumpMemData;
    adapter.InjectKernelCrash = InjectKernelCrash;
    HiDumperRegisterAdapter(&adapter);
}

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变量说明

g_adapter

struct HiDumperAdapter g_adapter

static

在文件 los_hidumper.c 第 104 行定义.

g_hidumperDevOps

STATIC struct file_operations_vfs g_hidumperDevOps

初始值:

= {
    HiDumperOpen,  
    HiDumperClose, 
    NULL,          
    NULL,          
    NULL,          
    HiDumperIoctl, 
    NULL,          
#ifndef CONFIG_DISABLE_POLL
    NULL,          
#endif
    NULL,          
}

在文件 los_hidumper.c 第 105 行定义.