los_patchfs.c 文件参考

浏览源代码.

函数
INT32	OsMountPatchFs (VOID)

函数说明

OsMountPatchFs()

INT32 OsMountPatchFs

(

VOID

)

在文件 los_patchfs.c 第 39 行定义.

{
    INT32 ret;
    struct PartitionInfo partInfo = {
        PATCHPART_NAME, PATCH_CMDLINE_ARGNAME,
        PATCH_STORAGE_ARGNAME, NULL,
        PATCH_FSTYPE_ARGNAME, NULL,
        PATCH_ADDR_ARGNAME, -1,
        PATCH_SIZE_ARGNAME, -1,
        NULL, PATCH_PARTITIONNUM
    };
 
#ifdef LOSCFG_SECURITY_BOOT
    partInfo.storageType = strdup(STORAGE_TYPE);
    if (partInfo.storageType == NULL) {
        return LOS_NOK;
    }
    partInfo.fsType      = strdup(FS_TYPE);
    if (partInfo.fsType == NULL) {
        ret = LOS_NOK;
        goto EXIT;
    }
    partInfo.startAddr   = PATCHFS_FLASH_ADDR;
    partInfo.partSize    = PATCHFS_FLASH_SIZE;
#else
    ret = GetPartitionInfo(&partInfo);
    if (ret != LOS_OK) {
        goto EXIT;
    }
    partInfo.startAddr = (partInfo.startAddr >= 0) ? partInfo.startAddr : PATCHFS_FLASH_ADDR;
    partInfo.partSize = (partInfo.partSize >= 0) ? partInfo.partSize : PATCHFS_FLASH_SIZE;
#endif
 
    ret = LOS_NOK;
    partInfo.devName = strdup(PATCH_FLASH_DEV_NAME);
    if (partInfo.devName == NULL) {
        goto EXIT;
    }
    const CHAR *devName = GetDevNameOfPartition(&partInfo);
    if (devName != NULL) {
        ret = mkdir(PATCHFS_MOUNT_POINT, 0);
        if (ret == LOS_OK) {
            ret = mount(devName, PATCHFS_MOUNT_POINT, partInfo.fsType, MS_RDONLY, NULL);
            if (ret != LOS_OK) {
                int err = get_errno();
                PRINT_ERR("Failed to mount %s, errno %d: %s\n", partInfo.partName, err, strerror(err));
            }
        } else {
            int err = get_errno();
            PRINT_ERR("Failed to mkdir %s, errno %d: %s\n", PATCHFS_MOUNT_POINT, err, strerror(err));
        }
    }
 
    if ((ret != LOS_OK) && (devName != NULL)) {
        ResetDevNameofPartition(&partInfo);
    }
 
EXIT:
    free(partInfo.devName);
    partInfo.devName = NULL;
    free(partInfo.storageType);
    partInfo.storageType = NULL;
    free(partInfo.fsType);
    partInfo.fsType = NULL;
    return ret;
}

函数调用图: