I am compiling and linking C for an ATmega2560. When I use the default options,
the resulting code works fine. When I try to remove unused trampoline entries
by placing -W,--relax in the ld options, the resulting code seems to have bad
subroutine calls.
Not all subroutine calls are bad, nor are all "bad" call targets always called
with a bad address.
Since the code image is around 120KBytes, this is a complex problem and my code
would not serve as a reasonable debugging case. I will try to come up with a
simple example that shows the problem.
I will attach more information as I get it.
--
Summary: Linker "relax" option results in bad subroutine calls
Product: binutils
Version: 2.18 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: ld
AssignedTo: unassigned at sources dot redhat dot com
ReportedBy: sbell at dataplay dot com
CC: bug-binutils at gnu dot org
GCC target triplet: avr
http://sourceware.org/bugzilla/show_bug.cgi?id=4284
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