feat: 支持系统、进程信息获取

BREAKING CHANGE:
支持系统、进程信息获取对外变更：
1.添加"/proc/meminfo" 获取系统内存使用情况
2.添加"/proc/filesystems" 获取文件系统信息
3.添加"/proc/[pid]/meminfo" 获取进程的内存占用信息
4.添加"/proc/[pid]/cpup" 获取进程的CPUP信息

Close #I6AMVG
Signed-off-by: Nzhushengle <zhushengle@huawei.com>
Change-Id: I8c1cab0bf956ced0cf16401907d869058d98cfa6

fs/proc/BUILD.gn

@@ -34,7 +34,9 @@ module_name = get_path_info(rebase_path("."), "name")
 kernel_module(module_name) {
   sources = [
     "os_adapt/fd_proc.c",
+    "os_adapt/file_sys.c",
     "os_adapt/fs_cache_proc.c",
+    "os_adapt/mem_info.c",
     "os_adapt/mounts_proc.c",
     "os_adapt/power_proc.c",
     "os_adapt/proc_init.c",

fs/proc/include/internal.h

@@ -49,6 +49,10 @@ extern bool procfsInit;
 int ProcCreateProcessDir(UINT32 pid, uintptr_t process);
 
 void ProcFreeProcessDir(struct ProcDirEntry *processDir);
+
+void ProcSysMemInfoInit(void);
+
+void ProcFileSysInit(void);
 #endif
 
 void ProcPmInit(void);
@@ -63,15 +67,15 @@ struct ProcDirEntry *ProcFindEntry(const char *path);
 
 void ProcFreeEntry(struct ProcDirEntry *pde);
 
-extern int ProcStat(const char *file, struct ProcStat *buf);
+int ProcStat(const char *file, struct ProcStat *buf);
 
-extern void ProcMountsInit(void);
+void ProcMountsInit(void);
 
-extern void ProcUptimeInit(void);
+void ProcUptimeInit(void);
 
-extern void ProcFsCacheInit(void);
+void ProcFsCacheInit(void);
 
-extern void ProcFdInit(void);
+void ProcFdInit(void);
 
 #ifdef __cplusplus
 #if __cplusplus

fs/proc/os_adapt/file_sys.c

+/*
+ * Copyright (c) 2023-2023 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.
+ */
+
+#include "fs/fs.h"
+#include "proc_fs.h"
+#include "proc_file.h"
+#include "errno.h"
+#include "sys/mount.h"
+
+extern struct fsmap_t g_fsmap[];
+extern struct fsmap_t g_fsmap_end;
+
+static int FsFileSysProcRead(struct SeqBuf *seqBuf, void *buf)
+{
+    (void)buf;
+
+    struct fsmap_t *m = NULL;
+    for (m = &g_fsmap[0]; m != &g_fsmap_end; ++m) {
+        if (m->fs_filesystemtype) {
+            if (m->is_bdfs == true) {
+                (void)LosBufPrintf(seqBuf, "\n       %s\n", m->fs_filesystemtype);
+            } else {
+                (void)LosBufPrintf(seqBuf, "%s  %s\n", "nodev", m->fs_filesystemtype);
+            }
+        }
+    }
+    return 0;
+}
+
+static const struct ProcFileOperations FILESYS_PROC_FOPS = {
+    .read = FsFileSysProcRead,
+};
+
+void ProcFileSysInit(void)
+{
+    struct ProcDirEntry *pde = CreateProcEntry("filesystems", 0, NULL);
+    if (pde == NULL) {
+        PRINT_ERR("creat /proc/filesystems error!\n");
+        return;
+    }
+    pde->procFileOps = &FILESYS_PROC_FOPS;
+}

fs/proc/os_adapt/mem_info.c

+/*
+ * Copyright (c) 2023-2023 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.
+ */
+
+#include "internal.h"
+#include "proc_fs.h"
+#include "vnode.h"
+#include "los_memory.h"
+#include "los_vm_filemap.h"
+#include "los_memory_pri.h"
+
+static int SysMemInfoFill(struct SeqBuf *seqBuf, void *arg)
+{
+    (void)arg;
+    LOS_MEM_POOL_STATUS mem = {0};
+    if (LOS_MemInfoGet(m_aucSysMem0, &mem) == LOS_NOK) {
+        return -EBADF;
+    }
+    (void)LosBufPrintf(seqBuf, "\nUsedSize:%25u KB\n", mem.totalUsedSize);
+    (void)LosBufPrintf(seqBuf, "FreeSize:%25u KB\n", mem.totalFreeSize);
+    (void)LosBufPrintf(seqBuf, "MaxFreeNodeSize:%18u KB\n", mem.maxFreeNodeSize);
+    (void)LosBufPrintf(seqBuf, "UsedNodeNum:%22u KB\n", mem.usedNodeNum);
+    (void)LosBufPrintf(seqBuf, "FreeNodeNum:%22u KB\n", mem.freeNodeNum);
+#ifdef LOSCFG_MEM_WATERLINE
+    (void)LosBufPrintf(seqBuf, "UsageWaterLine:%19u KB\n", mem.freeNodeNum);
+#endif
+     return 0;
+}
+
+static const struct ProcFileOperations SYS_MEMINFO_PROC_FOPS = {
+    .read = SysMemInfoFill,
+};
+
+void ProcSysMemInfoInit(void)
+{
+    struct ProcDirEntry *pde = CreateProcEntry("meminfo", 0, NULL);
+    if (pde == NULL) {
+        PRINT_ERR("create mem_info error!\n");
+        return;
+    }
+
+    pde->procFileOps = &SYS_MEMINFO_PROC_FOPS;
+}

fs/proc/os_adapt/proc_init.c

 /*
  * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2023 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:
@@ -68,6 +68,10 @@ void ProcFsInit(void)
 #ifdef LOSCFG_KERNEL_PM
     ProcPmInit();
 #endif
+#ifdef LOSCFG_PROC_PROCESS_DIR
+    ProcSysMemInfoInit();
+    ProcFileSysInit();
+#endif
 }
 
 LOS_MODULE_INIT(ProcFsInit, LOS_INIT_LEVEL_KMOD_EXTENDED);

fs/proc/os_adapt/process_proc.c

@@ -36,8 +36,14 @@
 #include "los_process_pri.h"
 
 #ifdef LOSCFG_PROC_PROCESS_DIR
+#include "los_vm_dump.h"
+
 typedef enum {
     PROC_PID,
+    PROC_PID_MEM,
+#ifdef LOSCFG_KERNEL_CPUP
+    PROC_PID_CPUP,
+#endif
 } ProcessDataType;
 
 struct ProcProcess {
@@ -100,10 +106,86 @@ static const struct ProcFileOperations PID_CONTAINER_FOPS = {
 };
 #endif /* LOSCFG_KERNEL_CONTAINER */
 
+static int ProcessMemInfoRead(struct SeqBuf *seqBuf, LosProcessCB *pcb)
+{
+    unsigned int intSave;
+    unsigned int size = sizeof(LosVmSpace) + sizeof(LosVmMapRegion);
+    LosVmSpace *vmSpace = (LosVmSpace *)LOS_MemAlloc(m_aucSysMem1, size);
+    if (vmSpace == NULL) {
+        return -ENOMEM;
+    }
+    (void)memset_s(vmSpace, size, 0, size);
+    LosVmMapRegion *heap = (LosVmMapRegion *)((char *)vmSpace + sizeof(LosVmSpace));
+
+    SCHEDULER_LOCK(intSave);
+    if (OsProcessIsInactive(pcb)) {
+        SCHEDULER_UNLOCK(intSave);
+        (void)LOS_MemFree(m_aucSysMem1, vmSpace);
+        return -EINVAL;
+    }
+    (void)memcpy_s(vmSpace, sizeof(LosVmSpace), pcb->vmSpace, sizeof(LosVmSpace));
+    (void)memcpy_s(heap, sizeof(LosVmMapRegion), pcb->vmSpace->heap, sizeof(LosVmMapRegion));
+    SCHEDULER_UNLOCK(intSave);
+
+    (void)LosBufPrintf(seqBuf, "\nVMSpaceSize:           %u KB\n", vmSpace->size);
+    (void)LosBufPrintf(seqBuf, "VMRegionSize:            %u KB\n", heap->range.size);
+    (void)LosBufPrintf(seqBuf, "RegionFlags:             %s\n", OsGetRegionNameOrFilePath(heap));
+    (void)LosBufPrintf(seqBuf, "ShmidAboutSharedRegion:  %u\n", heap->shmid);
+    (void)LosBufPrintf(seqBuf, "VMSpaceRorkFlags:        0x%x\n", heap->forkFlags);
+    (void)LosBufPrintf(seqBuf, "VMRegionRype:            0x%x\n", heap->regionType);
+    (void)LosBufPrintf(seqBuf, "VMSpaceMappingAreaSize:  %u KB\n", vmSpace->mapSize);
+    (void)LosBufPrintf(seqBuf, "TLB Asid:                %u\n", vmSpace->archMmu.asid);
+    (void)LOS_MemFree(m_aucSysMem1, vmSpace);
+    return 0;
+}
+
+#ifdef LOSCFG_KERNEL_CPUP
+static int ProcessCpupRead(struct SeqBuf *seqBuf, LosProcessCB *pcb)
+{
+    unsigned int intSave;
+    OsCpupBase *processCpup = (OsCpupBase *)LOS_MemAlloc(m_aucSysMem1, sizeof(OsCpupBase));
+    if (processCpup == NULL) {
+        return -ENOMEM;
+    }
+    (void)memset_s(processCpup, sizeof(OsCpupBase), 0, sizeof(OsCpupBase));
+
+    SCHEDULER_LOCK(intSave);
+    if (OsProcessIsInactive(pcb)) {
+        SCHEDULER_UNLOCK(intSave);
+        (VOID)LOS_MemFree(m_aucSysMem1, processCpup);
+        return -EINVAL;
+    }
+    (void)memcpy_s(processCpup, sizeof(OsCpupBase), pcb->processCpup, sizeof(OsCpupBase));
+    SCHEDULER_UNLOCK(intSave);
+
+    (void)LosBufPrintf(seqBuf, "\nTotalRunningTime:      %lu\n", processCpup->allTime);
+    (void)LosBufPrintf(seqBuf, "StartTime:               %lu\n", processCpup->startTime);
+    (void)LosBufPrintf(seqBuf, "HistoricalRunningTime:   ");
+    for (UINT32 i = 0; i < OS_CPUP_HISTORY_RECORD_NUM + 1; i++) {
+        (void)LosBufPrintf(seqBuf, "%lu  ", processCpup->historyTime[i]);
+    }
+    (void)LosBufPrintf(seqBuf, "\n");
+    (void)LOS_MemFree(m_aucSysMem1, processCpup);
+    return 0;
+}
+#endif
+
 static int ProcProcessRead(struct SeqBuf *m, void *v)
 {
-    (void)m;
-    (void)v;
+    if ((m == NULL) || (v == NULL)) {
+        return -EINVAL;
+    }
+    struct ProcessData *data = (struct ProcessData *)v;
+    switch (data->type) {
+        case PROC_PID_MEM:
+            return ProcessMemInfoRead(m, (LosProcessCB *)data->process);
+#ifdef LOSCFG_KERNEL_CPUP
+        case PROC_PID_CPUP:
+            return ProcessCpupRead(m, (LosProcessCB *)data->process);
+#endif
+        default:
+            break;
+    }
     return -EINVAL;
 }
 
@@ -119,6 +201,21 @@ static struct ProcProcess g_procProcess[] = {
         .fileOps = &PID_FOPS
 
     },
+    {
+        .name = "meminfo",
+        .mode = 0,
+        .type = PROC_PID_MEM,
+        .fileOps = &PID_FOPS
+    },
+#ifdef LOSCFG_KERNEL_CPUP
+    {
+        .name = "cpup",
+        .mode = 0,
+        .type = PROC_PID_CPUP,
+        .fileOps = &PID_FOPS
+
+    },
+#endif
 #ifdef LOSCFG_KERNEL_CONTAINER
     {
         .name = "container",

testsuites/unittest/process/fs/process_fs_test.cpp

@@ -80,6 +80,55 @@ HWTEST_F(ProcessFsTest, ItProcessFs001, TestSize.Level0)
     ItProcessFs001();
 }
 
+/**
+* @tc.name: Process_fs_Test_002
+* @tc.desc: System memory information acquisition test
+* @tc.type: FUNC
+* @tc.require: issueI6AMVG
+* @tc.author:
+*/
+HWTEST_F(ProcessFsTest, ItProcessFs002, TestSize.Level0)
+{
+    ItProcessFs002();
+}
+
+/**
+* @tc.name: Process_fs_Test_003
+* @tc.desc: Get the file system type information supported by the system test
+* @tc.type: FUNC
+* @tc.require: issueI6AMVG
+* @tc.author:
+*/
+HWTEST_F(ProcessFsTest, ItProcessFs003, TestSize.Level0)
+{
+    ItProcessFs003();
+}
+
+/**
+* @tc.name: Process_fs_Test_004
+* @tc.desc: Process memory information acquisition test
+* @tc.type: FUNC
+* @tc.require: issueI6AMVG
+* @tc.author:
+*/
+HWTEST_F(ProcessFsTest, ItProcessFs004, TestSize.Level0)
+{
+    ItProcessFs004();
+}
+
+/**
+* @tc.name: Process_fs_Test_005
+* @tc.desc: Process cpup information acquisition test
+* @tc.type: FUNC
+* @tc.require: issueI6AMVG
+* @tc.author:
+*/
+
+HWTEST_F(ProcessFsTest, ItProcessFs005, TestSize.Level0)
+{
+    ItProcessFs005();
+}
+
 /**
 * @tc.name: Process_fs_Test_007
 * @tc.desc: Process mount directory test