I'm fairly certain there is a bug in the COFF code. My particular problem is
with coff-x86-64 in the development version of binutils, but I've had similar
troubles with 32-bit coff in the past.
I have rather large COFF object files built by MASM that I translate to ELF
using objcopy.
The instruction that isn't converting properly is:
"mov rax, OFFSET some_variable"
Dumpbin and objdump seem to indicate the relocation record for "some_variable"
is not being converted properly. I'd be happy to provide you with source code,
object files, or even work to get the smallest possible reproducible source
file. If you're not interested in the problem, I'll find some way to work
around the trouble.
The similar 32-bit object file problem I had forced me to replace
"CALL some_routine"
with:
push OFFSET xxx
push OFFSET somer_routine
ret
xxx:
This may have been fixed. I don't know as I've used macros to work around the
problem for several years.
--
Summary: COFF relocation record bug
Product: binutils
Version: 2.18 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: binutils
AssignedTo: unassigned at sources dot redhat dot com
ReportedBy: gwoltman at earthlink dot net
CC: bug-binutils at gnu dot org
http://sourceware.org/bugzilla/show_bug.cgi?id=4365
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