gold doesn't accept object file as script

[Ian Lance Taylor]

Vladimir Simonov <sv@sw.ru> writes:

> According "man ld" "If the linker cannot recognize the format
> of an object file, it will assume that it is a linker script."
>
> But gold doesn't follow above. For details, see test case below.

That turns out not to be the case.  Gold does implement that.

> Briefly, the command "gcc -fuse-ld=gold -o a.4 -shared exports.ld a.a"
> if exports.ld is linker script leads to warning
> "exports.ld:1:8: ignoring command OPTION; OPTION is only valid for
> scripts specified via -T/--script" and resulted shared library
> doesn't contain func_a.
> exports.ld contains only EXTERN(func_a)

Internally gold implements EXTERN via OPTION, and as the warning says
gold only permits OPTION in a script specified via -T/--script.  So the
bug is that EXTERN is implemented as OPTION.

Fortunately, the fix is simple, as the necessary framework was
introduced for other reasons.  Would you mind giving this patch a try to
see if it fixes your problem?

Ian

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