vmm_proc.c 文件参考

浏览源代码.

函数
STATIC VOID	OsVmDumpSeqSpaces (struct SeqBuf *seqBuf)
static int	VmmProcFill (struct SeqBuf *m, void *v)
	.read 接口的现实 更多...
void	ProcVmmInit (void)

变量
static const struct ProcFileOperations	VMM_PROC_FOPS
	实现 操作proc file 接口,也可理解为驱动程序不同 更多...

函数说明

OsVmDumpSeqSpaces()

STATIC VOID OsVmDumpSeqSpaces

(

struct SeqBuf *

seqBuf

)

在文件 vmm_proc.c 第 44 行定义.

{
    LosVmSpace *space = NULL;
    LosVmMapRegion *region = NULL;
    LosRbNode *pstRbNode = NULL;
    LosRbNode *pstRbNodeNext = NULL;
    UINT32 pssPages = 0;
    UINT32 spacePages;
    UINT32 regionPages;
    LosProcessCB *pcb = NULL;
    LOS_DL_LIST *aspaceList = LOS_GetVmSpaceList();
    LosMux *aspaceListMux = OsGVmSpaceMuxGet();
 
    (VOID)LOS_MuxAcquire(aspaceListMux);
    LOS_DL_LIST_FOR_EACH_ENTRY(space, aspaceList, LosVmSpace, node) {
        (VOID)LOS_MuxAcquire(&space->regionMux);
        spacePages = OsCountAspacePages(space);
        pcb = OsGetPIDByAspace(space);
        if (pcb == NULL) {
            (VOID)LOS_MuxRelease(&space->regionMux);
            continue;
        }
        (VOID)LosBufPrintf(seqBuf, "\r\n PID    aspace     name       base       size     pages \n");
        (VOID)LosBufPrintf(seqBuf, " ----   ------     ----       ----       -----     ----\n");
        (VOID)LosBufPrintf(seqBuf, " %-4d %#010x %-10.10s %#010x %#010x %d\n",
                           pcb->processID, space, pcb->processName, space->base, space->size, spacePages);
        (VOID)LosBufPrintf(seqBuf,
            "\r\n\t region      name                base       size       mmu_flags      pages   pg/ref\n");
        (VOID)LosBufPrintf(seqBuf,
            "\t ------      ----                ----       ----        ---------      -----   -----\n");
 
        RB_SCAN_SAFE(&space->regionRbTree, pstRbNode, pstRbNodeNext)
            region = (LosVmMapRegion *)pstRbNode;
            regionPages = OsCountRegionPages(space, region, &pssPages);
            CHAR *flagsStr = OsArchFlagsToStr(region->regionFlags);
            if (flagsStr == NULL) {
                break;
            }
            (VOID)LosBufPrintf(seqBuf, "\t %#010x  %-19.19s %#010x %#010x  %-15.15s %4d    %4d\n",
                region, OsGetRegionNameOrFilePath(region), region->range.base,
                region->range.size, flagsStr, regionPages, pssPages);
            (VOID)LOS_MemFree(m_aucSysMem0, flagsStr);
            (VOID)OsRegionOverlapCheck(space, region);
        RB_SCAN_SAFE_END(&space->regionRbTree, pstRbNode, pstRbNodeNext)
        (VOID)LOS_MuxRelease(&space->regionMux);
    }
    (VOID)LOS_MuxRelease(aspaceListMux);
}

函数调用图:

这是这个函数的调用关系图:

ProcVmmInit()

void ProcVmmInit

(

void

)

在文件 vmm_proc.c 第 106 行定义.

{
    struct ProcDirEntry *pde = CreateProcEntry("vmm", 0, NULL);//创建目录
    if (pde == NULL) {
        PRINT_ERR("create /proc/vmm error!\n");
        return;
    }
 
    pde->procFileOps = &VMM_PROC_FOPS;//每个目录的驱动程序都不一样
}

函数调用图:

这是这个函数的调用关系图:

VmmProcFill()

static int VmmProcFill ( struct SeqBuf *  m, void *  v  )

static

.read 接口的现实

在文件 vmm_proc.c 第 93 行定义.

{
    (void)v;
    OsVmDumpSeqSpaces(m);
 
    return 0;
}

函数调用图:

变量说明

VMM_PROC_FOPS

const struct ProcFileOperations VMM_PROC_FOPS

static

初始值:

= {
    .write      = NULL,
    .read       = VmmProcFill,
}

实现 操作proc file 接口,也可理解为驱动程序不同

在文件 vmm_proc.c 第 101 行定义.