Hi, I was wondering whether anyone out there would be able to provide me with some information about memory mapping in uCLinux. I have done a fair bit of searching for information and so far i understand that there is some support for mmap() in the uCLinux kernel however i have so far been unable to get it to work.
I have an application which was written using mmap() to map a large data file (120MB) into virtual memory. The application was initially written with desktop/server linux in mind and therefore the assumption that there would be MMU support on the platform. I am currently trying to port this application to an embedded platform which currently runs uCLinux. The hardware in question is the KB9202B from KwikByte and consists of an Arm core with 64MB SDRAM. It also has a SD/MMC card reader which is where i would like to store the data file. The application only needs read access to the data. I have read (http://www.linuxjournal.com/article/7221) that memory mapping is possible if the filesystem from which the mapped file comes from is ROMFS and the mapping is readonly. If this is the case, would it be feasible to store my data file on an SD card using ROMFS and memory map this into the address space? Regards, Nick Vaughan. ================================================================= Nick Vaughan Codestuff LTD Breich Pit Studio West Calder EH55 8PL tel: +44 1506 870 777 fax: +44 1506 870 770 email: [EMAIL PROTECTED] Winners of the IIPSEC 2006 Award for Innovation. Winners of the IIPSEC 2006 Award for Best Software Product. Codestuff is a private limited company, registered in Scotland with number 261589 and having its registered office at Breich Pit Studio, West Calder, West Lothian EH55 8PL. Our VAT registration number is 829 9597 53. ================================================================= _______________________________________________ uClinux-dev mailing list uClinux-dev@uclinux.org http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by uclinux-dev@uclinux.org To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev
