Hi Vinayak, Kindly refer to below mail. I am already using this following method but it is not working. Regards, Kanwal -----Original Message----- From: gcc-help-owner@xxxxxxxxxxx [mailto:gcc-help-owner@xxxxxxxxxxx] On Behalf Of Vinayak Bhalkar Sent: Tuesday, August 29, 2006 5:42 PM To: kanwalpreet.singh@xxxxxx Cc: gcc-help@xxxxxxxxxxx; crossgcc@xxxxxxxxxxxxxxxxxx Subject: Re: FW: GCC ARM Cross Linker Problem Try following- MaskInterrupt = 0x00c008f9; Regards, vinayak --- kanwalpreet.singh@xxxxxx wrote: From: Kanwal Preet Singh CHANANA <kanwalpreet.singh@xxxxxx> To: <gcc-help@xxxxxxxxxxx>, <crossgcc@xxxxxxxxxxxxxxxxxx> Subject: FW: GCC ARM Cross Linker Problem Date: Tue, 29 Aug 2006 14:59:35 +0530 Hi all, I am able to compile & Link my source files with a workaround mentioned below: The absolute symbols defined in symbols.o are 0x000002a8 D CurTask 0x00c008f8 T MaskInterrupt Where Curtask is data located in RoM & MaskInterrupt is function in Thumb Mode. I used following definations in Linker Script pCurTask = 0x000002a8; MaskInterrupt = 0x00c008f8; With this I am able to link & built Image.axf file. But when running on target,the image crashes at a point when it jumps to MaskInterrupt(shown above) . The reason is that the Linker assumes MaskInterrupt function to be in ARM mode.When it jumps there, it expects 4 byte ARM instruction but the code at this location has 2 Byte Thumb Instruction. The Thumb Interwork option is enabled in Build options. Can anyone suggest me a method to Link above symbols in a way so that GCC-ARMv4.0.3 knows whether the symbols is Data or Thumb Function or ARM function? If there is a way, then Image will run correctly on Target. Also if anyone needs any help on Project porting from ADS to GCC-ARM,then I can help him out. Please suggest a wayout to fix the above problem. Regards, Kanwal -----Original Message----- From: gcc-help-owner@xxxxxxxxxxx [mailto:gcc-help-owner@xxxxxxxxxxx] On Behalf Of Kanwal Preet Singh CHANANA Sent: Monday, August 21, 2006 3:48 PM To: gcc-help@xxxxxxxxxxx Subject: GCC ARM Cross Linker Problem Hi all, I am porting my project from ADS from ARM to GCC ARM Tool chain. I am able to compile my source files but fail to link. I have a symbols file (symbols.o) with absolute symbols addresses in format Symboladdress SymbolType Symbolname e.g 0x000002a8 D CurTask 0x00c008f8 T MaskInterrupt These symbols are located in ROM( code built with ADS) & project image will be in flash. When I use this same file during build with ARM ADS, it works fine but with GCC ARM tool chain,I get following error message "./symbols.o: file not recognized: File format not recognized" Can anybody please tell me the solution to this error? Can I link objects built with ADS with GCC ARM ? Regards, Kanwal _____________________________________________________________ Get your free web-based e-mail account from http://www.Math.net Your online tourguide of Mathematics, with books, links, news, message boards, and much more!