https://sourceware.org/bugzilla/show_bug.cgi?id=29810
Bug ID: 29810
Summary: objcopy to pe-i386 corrupts relocations
Product: binutils
Version: 2.39
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: stsp at users dot sourceforge.net
Target Milestone: ---
Created attachment 14468
--> https://sourceware.org/bugzilla/attachment.cgi?id=14468&action=edit
test case
Attached test-case shows that the
program can be compiled correctly
directly to PE - use "make good"
for that.
To demonstrate the bug, use "make bad" -
in that case an extra step is added,
such as the source is compiled to elf
first and then converted to PE with
objcopy.
The test-case manages to avoid the linker crash
https://sourceware.org/bugzilla/show_bug.cgi?id=29807
by using strip, and it manages to avoid
https://sourceware.org/bugzilla/show_bug.cgi?id=29809
by using "strip --strip-debug".
At the end, linking fails complaining to
the "0-bit reloc in dll":
i686-w64-mingw32-gcc hel.o prnt.o -o bad.exe
/usr/bin/i686-w64-mingw32-ld: error: 0-bit reloc in dll
/usr/bin/i686-w64-mingw32-ld: error: 0-bit reloc in dll
/usr/bin/i686-w64-mingw32-ld: error: 0-bit reloc in dll
/usr/bin/i686-w64-mingw32-ld: error: 0-bit reloc in dll
collect2: error: ld returned 1 exit status
make: *** [Makefile:14: bad.exe] Error 1
The test case uses mingw for convenience, but
the same error happens invoking ld directly:
$ ld -mi386pe hel.o prnt.o -o bad.exe
ld: error: 0-bit reloc in dll
ld: error: 0-bit reloc in dll
ld: error: 0-bit reloc in dll
ld: error: 0-bit reloc in dll
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