RTP memory in Vxworks

cmd进入Command interpreter c进入C interpreter 以下是用cmd命令,打印出rtp memory的情况: 有一点关于shared data比较奇怪,我open的时候大小明明设置的是0x9900300,这里显示的是0x9901000. 原因应该是和WindRiver的库函数有关. [vxWorks *]# rtp meminfo -l -m 0x5a02010 Memory Information for 0x5a02010 RTP (name = "/romfs/pturm.vxe"): Virtual Memory Context: ======================= Virtual Memory Context ID: 0x5973c30 Private Virtual Memory Allocated: 0x2588000 bytes Private Virtual Memory Mapped: 0x2586000 bytes Private Mappings: VIRTUAL ADDR BLOCK LENGTH PHYSICAL ADDR PROT (S/U) CACHE SPECIAL ------------------------ ----------------------- ------------------------- 0xd9901000 0x00099000 0x031ef0000 R-X / R-X CB-/CO/- -- 0xd999a000 0x022dd000 0x031f89000 RW- / RW- CB-/CO/- -- 0xfd400000 0x00001000 ***unmapped*** 0xfd401000 0x00200000 0x034266000 RW- / RW- CB-/CO/- -- 0xfd601000 0x00001000 ***unmapped*** 0xfd602000 0x00010000 0x034466000 RW- / RW- CB-/--/- -- Shared Data Mappings: VIRTUAL ADDR BLOCK LENGTH PHYSICAL ADDR PROT (S/U) CACHE SPECIAL ------------------------ ------------------------- -------------------------- 0xd0000000 0x09901000 0x0285ef000 RW- / RW- CB-/--/- -- Shared Object (POSIX) Mappings: VIRTUAL ADDR BLOCK LENGTH PHYSICAL ADDR PROT (S/U) CACHE SPECIAL ------------------------ ----------------------- -------------------------- Memory Mapped Objects (POSIX): ============================== ADDRESS LENGTH PROT FLAGS OFFSET OBJECT ----------------- ----------------- --------- ------------ -------------- 0xfd602000 0x00010000 RW- PRIVATE N/A ***anonymous***