When manipulating object code, it's often useful to separate symbol references
from symbol definitions -- for example in conjunction with the --wrap option to
ld. Ordinarily --wrap doesn't work within the scope of a single object file,
since the assembler has already resolved references to symbols defined in the
same file. The attached patch to objcopy (current CVS) supports undoing this
binding process, by providing an --unbind-symbol operation which replaces a
single symbol entry SYMBOL with (up to) two: __def_SYMBOL and __ref_SYMBOL.
It's not been extensively tested, but seems to work. If it looks good, please
consider committing it. I'd be grateful for feedback in any case.
--
Summary: [PATCH] support symbol unbinding in objcopy
Product: binutils
Version: 2.19 (HEAD)
Status: NEW
Severity: enhancement
Priority: P2
Component: binutils
AssignedTo: unassigned at sources dot redhat dot com
ReportedBy: srk31 at srcf dot ucam dot org
CC: bug-binutils at gnu dot org
http://sourceware.org/bugzilla/show_bug.cgi?id=6765
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