------- Additional Comments From angustia at arrozcru dot no-ip dot org 2006-12-19 17:10 ------- Subject: New: strip breaks mixed msvc++ (with manifest) and gcc (with debug) generated pei-i386
After running the file with wine, I came closer to the problem. Specifically reading around http://source.winehq.org/source/dlls/ntdll/virtual.c#L1068 gmmain.exe (the original file with msvc++ manifest and gcc debug) had these sections: Idx Name Size VMA LMA File off Algn 0 .text 000083b4 00401000 00401000 00001000 2**4 CONTENTS, ALLOC, LOAD, READONLY, CODE 1 .rdata 00001d0e 0040a000 0040a000 0000a000 2**4 CONTENTS, ALLOC, LOAD, READONLY, DATA 2 .data 00001000 0040c000 0040c000 0000c000 2**4 CONTENTS, ALLOC, LOAD, DATA 3 .stab 00000324 0040f000 0040f000 0000d000 2**2 CONTENTS, ALLOC, LOAD, DATA, DEBUGGING 4 .stabstr 00000787 00410000 00410000 0000e000 2**0 CONTENTS, ALLOC, LOAD, DATA, DEBUGGING 5 .rsrc 000001f8 00411000 00411000 0000f000 2**2 CONTENTS, ALLOC, LOAD, READONLY, DATA Strip removed .stab and .stabstr. That way, .rsrc was moved down the file. But the VirtualAddress value from .rsrc's IMAGE_SECTION_HEADER was not updated, and that lead to the error. PointerToRawData was, though. I looked for other programs to strip pei-i386 executables. I came accross PE Explorer, in which I can remove some sections and re-save the file. Whenever I remove a section, it asks me "Number of sections has been changed. Update NumberOfSections and recalculate SizeOfImage?". It seems to me that the sections headers need to and can safely be updated. I don't know if it's possible to come accross a file in which the VirtualAddress value can't be changed. I really don't know much about executable file formats. Anyways, after I remove .stab and .stabstr with PE Explorer, and run binutils' strip on the output file (which I named gmmain2.exe), it works alright, and the size is exactly the same as if I had run strip on the original file, with debug information. Here is their objdump -h. gmmain2.exe: file format pei-i386 Sections: Idx Name Size VMA LMA File off Algn 0 .text 000083b4 00401000 00401000 00000400 2**4 CONTENTS, ALLOC, LOAD, READONLY, CODE 1 .rdata 00001d0e 0040a000 0040a000 00008800 2**4 CONTENTS, ALLOC, LOAD, READONLY, DATA 2 .data 00001000 0040c000 0040c000 0000a600 2**4 CONTENTS, ALLOC, LOAD, DATA 3 .rsrc 000001f8 0040f000 0040f000 0000b600 2**2 CONTENTS, ALLOC, LOAD, DATA gmsmain.exe: file format pei-i386 Sections: Idx Name Size VMA LMA File off Algn 0 .text 000083b4 00401000 00401000 00000400 2**4 CONTENTS, ALLOC, LOAD, READONLY, CODE 1 .rdata 00001d0e 0040a000 0040a000 00008800 2**4 CONTENTS, ALLOC, LOAD, READONLY, DATA 2 .data 00001000 0040c000 0040c000 0000a600 2**4 CONTENTS, ALLOC, LOAD, DATA 3 .rsrc 000001f8 00411000 00411000 0000b600 2**2 CONTENTS, ALLOC, LOAD, DATA You can find both files here (gmsmain.exe is the same as in the other tarball. gmmain2.exe is the working file). http://arrozcru.no-ip.org/stripped_files.tar.gz Ramiro Polla -- http://sourceware.org/bugzilla/show_bug.cgi?id=3732 ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. _______________________________________________ bug-binutils mailing list bug-binutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-binutils
