Subject: Re: port windows CE code onto netbsd
To: Kamal R. Prasad <email@example.com>
From: David Brownlee <abs@NetBSD.org>
Date: 11/14/2004 21:57:43
On Fri, 12 Nov 2004, Kamal R. Prasad wrote:
>> If the library really doesn't make any external calls then you
>> should just be able to objcopy to convert it to elf and link it
>> into a NetBSD binary (with a possibly a little glue to match up
>> function calling semantics).
> You mean,
> # objcopy -I windows_filename -O netbsd_filename
> will automatically make it a netbsd usable library?
Something more like 'objcopy -O elf32-arm infile outfile'
would give you an elf compatible library. I've not done this
personally but hopefully someone else can chime in.
>> If it makes some external library calls such as malloc() then
>> you need to include another library which provides a 'windows'
>> wrapper to the native version of those functions (if the calling
> The external functions called are the std libc functions. Its likely that the
> function prototypes don't change across platforms because of standardization.
>> semantivcs are different) - the PEACE project is a good example of
>> a more complete version of this
> This seems to be a work in progress.
>> Is there no way you could get the vendor to provide the object
>> code in native NetBSD form?
>> Its relatively simple to setup a windows box to compile
>> NetBSD/arm32 binaries. Maybe if you offered to build a toolchain
>> (donwload NetBSD and './build.sh -m evbarm toolchain' :)
>> and asked them to compile the source using it?
> Not a v. cooperative/competent vendor.
I'd start by compiling a trivial function that just doubles
the argument and returns the result under WinCE arm and to a .a,
objcopy and test the result works, then try the other lib.
David/absolute -- www.NetBSD.org: No hype required --