(When profiling)ld.so.1 error: relocation error: R_SPARC_WDISP22...symbol _cerror: value 0x36dc48 does not fit

Question

I'm using Solaris 7/Forte C++ 6 update 1. This is a large program consisting of a dozen or so .so's.
The problem only occurs when compiled/linked -xpg or -g for profiling.
From what I've read, it sounds like the compiler/linker has not reserved enough space to store the actual address offset at load/relocation time. However, I can't find any way in which I can control what size it chooses.
Anyone seen this/solved this one before?
Thanks...Steve
[email protected]

Answer 1

The R_SPARC_WDISP22 is a relocation type.
It is normally used for branch instructions.
The error message is probably indicating
that there is a branch instruction
that cannot reach its target.
The target is probably _cerror.
On SPARC, the longest branch instruction
only reaches 22 bits of word displacement,
or -2**23 bytes or -8MBytes.
You can use elfdump -r to see the relocation
information for the *.o files you are linking.
Find one that has that relocation.
Then find the code that is referencing _cerror.
Perhaps there is some strange code
that is trying to branch out of a routine?
I think normally, the compiler will
resolve all the branch relocations,
because the branches and the branch
targets should all be
within the same function.
So, I'm a bit puzzled about
why you are getting a link time error
and not a compile-time error.
In any case, it could be a compiler bug.
We've fixed some like this in the past,
but there could be some we missed.
It looks like you are using an older compiler
(of couse this message is old too),
so you might try upgrading to a newer version.
The newest one in Sun Studio 12 update 1.
Peter.