This is the mail archive of the crossgcc@sources.redhat.com mailing list for the crossgcc project.
See the CrossGCC FAQ for lots more information.
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |
Other format: | [Raw text] |
Hi All I m trying to port a code (M68k MOTOROLA) written for MRI to GNU GCC. I m compiling few of the files with GNU GCC and remaining with MRI(microtec). Finally i m trying to link these files using MRI linker. And for intermediate format conversion (elf to ieee695 )i m using the GNU objcopy utility. Doing this i m able to make the final executable but this executable dont run on the target board(motorola 68k). When i analised the map files generated i noted that only physically first function of GNU compiled file gets the proper section name and address, remaining functions are in a noname section.The part of the map file looks like: Function Name Section Address object module _accept .text 00000000 comm.o _close 00000102 $$ _get 0000064C $$ _my_id 0000087E $$ _init 00000158 $$ _mlbx 00000432 $$ _open 000003AE $$ _pend 000004BE $$ Probably all the function have been assignd a common section,named ".text". Now if i try to rename this section as "code" using objcopy utility the resulting map file will look like: Function Name Section Address object module _accept code 00007D7C comm.o _close 00000102 $$ _get 0000064C $$ _my_id 0000087E $$ _init 00000158 $$ _mlbx 00000432 $$ _open 000003AE $$ _pend 000004BE $$ Only first function is renamed as "code" with the proper address,remaining are having the same address as before. Note that in MRI compiled files every function gets the section "code" with a proper addesss,but here in the case of GNU compiled file it is not happening. further note that I dont get any error message from the compiler in the build process,but the code dont execute,giving error " Invalid Instruction ". Now my questions: 1. Is the map file generated is correct (i really doubt) ? 2. Is the problem is because of format generated by objcopy. 3. How can i get a MRI compatible format( i have already tried -M option ) ? 4. In most of the document it is written that object file format needs to be enhanced to make it MRI compatible,but nobody talks how ? If anyone has faced the same probem and can help me pls reply asap. Thanks Trilok Tak _____________________________________________________________ Get email for your site ---> http://www.everyone.net ------ Want more information? See the CrossGCC FAQ, http://www.objsw.com/CrossGCC/ Want to unsubscribe? Send a note to crossgcc-unsubscribe@sources.redhat.com
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |