[LLVMdev] [lld] -Bstatic / -Bdynamic switches handling

[Simon Atanasyan]

Hi,

​This functionality is implemented say incompletely. Now -Bdynamic is not
recognized at all. -Bstatic and -Bshareable are aliases for -static and
-shared options respectively. The linker uses the last option specified in
a command line just to select type of output file.

​Simon​

On Wed, Sep 17, 2014 at 4:30 PM, Oleg Ranevskyy <llvm.mail.list at gmail.com>
wrote:

>  Hello LLD developers!
>
> Lld is claimed to be compatible with the existing linker options.
> However, there is a discrepancy in how the -Bstatic switch (disable
> linking against shared libs) is treated by lld and GNU ld.
>
> According to the GNU ld docs, the switch affects library searching for -l
> options *which follow it*.
> This means -Bstatic can be used multiple times in the command line to
> disable dynamic linking for particular -l options. For example:
>
> ld -Bstatic -lslib1 -lslib2 -Bdynamic -ldlib1 -Bstatic -lslib3...
>
> Even though the GNU linker won't search for so-files for slib1, slib2 and
> slib3, so-file for dlib1 will still be considered as it is preceded by
> -Bdynamic.
>
> Lld behaves differently.
> -Bdynamic is not recognized yet, whereas -Bstatic applies static linkage
> on the binary level, i.e. it's no longer possible to link against any
> shared lib. Lld looks for static archives only if -Bstatic is met in the
> command line.
>
> Is this intentional behaviour or this functionality just hasn't been fully
> implemented yet?
>
> Thank you!
>
> Kind regards,
> Oleg
>
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>


-- 
Simon Atanasyan
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