[Firm] support cygwin?
KIMURA Masaru
hiyuh.root at gmail.com
Mon Dec 7 01:13:56 CET 2015
Hi,
> Having said that, we are of course happy to accept patches that improve
> the situation.
> Let me try to give some hints to get you started:
> - cparser uses machine triples to describe target system configurations.
> The concept itself stems from the infamous autoconf/config.guess
> scripts AFAIK.
> You can learn more about the format in the src/driver/machine_triple.*
> files.
> You should probably research what machine triples are typically in use
> for cygwin.
> - To fix your specific problem you probably need to modify
> src/driver/target.c, specifically:
> * get_host_machine_triple() attempts to guess an apropriate target
> triple if none was specified in config.mak, you
> * set_options_for_machine() takes the information from the triple and
> configures firm for the target, things like selecting the object
> file format, preprocessor defines, size/alignment of some data
> types, etc.
> I typically do a combination of compiling small tests programs and
> reading something like gcc/config/i386/cyg* in the gcc sourcecode to
> find the apropriate values for a new system.
>
> You should also be able to adjust the Makefile to not use -fPIC on cygwin
> or at least provide a way that config.mak can override the default flags
> used to build shared libraries.
Matthias-san,
thank you for giving above bunch of hints.
i'll continue to try this issue.
Peace,
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