On 4/9/2023 4:50 pm, zhengxiaojun wrote: > > > 在 2023/8/31 13:39, Chris Johns 写道: >> On 31/8/2023 3:12 pm, zhengxiaojun wrote: >>> >>> >>> 在 2023/8/31 6:05, Chris Johns 写道: >>>> On 31/8/2023 12:48 am, zhengxiaojun wrote: >>>>> Hi, >>>>> I use the latest rtems-tools to generate RAP file, I found the object >>>>> file >>>>> become too small(elf,2184bytes==>rap,736bytes) and the file loaded failed, >>>>> error >>>>> message like this "load app.out error:offset past end of file: offset=736 >>>>> size=736 error." >>>> >>>> What arch and BSP? >>>> >>>>> I reverted the rtl-rap.cpp commit( >>>>> 0ad4aaafc20afcb5aacb7a82b0b3a8150b638975 >>>>> linker/rap: Ignore relocation records with no section), the rap file can >>>>> be >>>>> loaded. >>>> >>>> I think the commit has the wrong ticket id, it should be 4069 ... >>>> >>>> https://devel.rtems.org/ticket/4069 >>>> >>>> My guess is the length includes the relocs that have been dropped because >>>> they >>>> do not have a symbol section. A reloc without a symbol section cannot be >>>> located >>>> because you do not know the section to locate it against. >>>> >>>> Are you able to review the rtems-ld code for the issue? >>>> >>> I found something suspicious, get_relocations(s) return all the count of >>> relocation and write to rap file, but actual count is less, because ignore >>> the >>> reloc with section=0. >> >> Right, this aligns with my guess. That value should the number written out >> and >> it should not assume all are written. >> >>> This issue is similar to ticket #4781, maybe the same. >> >> Yeah it could. It would be nice if it is. >> >>> reduce count or write all relocs in rap ? I do not know which is the right >>> solution. >> >> I am not sure. If relocs are needed then we have to have them and the patch >> you >> isolated is wrong or needs more understanding to know why it is there. I >> suspect >> an arch had an issue and this was the solution but that is guess on my part. > > I tried to make the length fit the relocs write to rap file, the file can not > be > loaded, it crashed. So the relocs(reloc.symsect == 0) can not be ignored, at > least in arm.
Can you please open a ticket and can you please add the code to build into the RAP with the commands you are using? A script would help. > In addition, I saw a loader complaint "rtl: unsupported section:..." about > .ARM.attributes， the arm linkcmds always keep it. > Should it be dealt with? The RTL may need to be taught to ignore the section. Chris _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
