Bugzilla exe Patch#See "Īnd if the user decides that they have become aware and that for their case this is a legal use, they could silence the information by using a "-no-check-overlap-noload-sections" flag sent to LD.īinutils LD individual section selection patch suggestion Basically, in a default run, LD would just print information of the sort of: The attached patch is a suggestion of such a change. But as one user of LD who both needs overlaps but at the same time has been bitten by longish debugging hours because of not realizing that I had incidentally created unwanted/accidental overlaps I suggest the following change:ġ) Have LD inform by default if there are noload sections overlapping other sectionsĢ) If someone saw the information, became aware of the overlap and consciously makes a choice to quiet down that information, provide a LD flag that would silence that extra verbosity Like the link in the last comment shows, this behavior is sane because BSS sections have to be able to overlap between themselves and data sections for overlay reasons. The GNU General Public License version 3 or (at your option) a later version. Bugzilla exe software#This program is free software you may redistribute it under the terms of The following command output describes the system I am using:Ĭopyright 2013 Free Software Foundation, Inc. bss segmentsģ) The nm command will show that the linker has assigned the sameĪddress to both main (a function) and var2 (a variable). TheĮxpected behavior (if the bug has not been fixed) is thatġ) The ld command will not produce any messages.Ģ) The objdump command will show that the. That will assemble and linkĪn object file named "lib.out", and run objdump and nm on it. To reproduce the problem, unpack the attached tar file into an emptyĭirectory and run the command "sh mk". Of a completely unrelated function, and no problem would be evident Bugzilla exe code#Then the calling one function could overwrite a portion of the code If LD doesn't treat this condition as anĮrror, the result is likely to be malfunctions which are difficult toĭebug. Of the output sections to increase in size so that it overlaps the Is a chance that changes to the program being linked will cause one If a linker script uses fixed addresses for output sections, there The reason that this has the potential to be a serious problem is that Sections, at least if one of the overlapping sections is the ".bss" Section if so doing creates areas with overlapping LMAs.Ĭontrary to the documentation, LD actually allows creating overlapping Section, and may not be moved backwards outside of an output The location counter may not be moved backwards inside an output According to section 3.10.5 (title "The Location Counter"):
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