Date: Thu, 15 Nov 2007 19:36:23 +0200 From: Giorgos Keramidas <keramida@ceid.upatras.gr> To: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> Cc: freebsd-questions@freebsd.org Subject: Re: OT: gcc/binutils question Message-ID: <20071115173623.GA1749@kobe.laptop> In-Reply-To: <20071115171510.D59698@wojtek.tensor.gdynia.pl> References: <20071115171510.D59698@wojtek.tensor.gdynia.pl>
next in thread | previous in thread | raw e-mail | index | archive | help
On 2007-11-15 17:17, Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> wrote:
> how to convert arbitrary data (in file) to object file, so i will be able
> to do
>
> extern char something[]
>
> and use it - in C.
Try to file2c(1) utility. Quoting from its manpage:
% EXAMPLES
% The command:
%
% date | file2c 'const char date[] = {' ',0};'
%
% will produce:
%
% const char date[] = {
% 83,97,116,32,74,97,110,32,50,56,32,49,54,58,50,56,58,48,53,
% 32,80,83,84,32,49,57,57,53,10
% ,0};
> i did wrote converter that converts data from file to
>
> const char something[]={firstbyte,secondbyte,.....};
>
> and then cc to compile it.
>
> and it's VERY SLOW when data are few megs - while it's no work in fact.
I think there's something wrong with the converter, then. The file2c(1)
utility converts my kernel (6 MB of data) in less than 3 seconds:
$ /usr/bin/time file2c 'const char kernel[] = {' '};' \
< /boot/kernel/kernel > /dev/null
2.98 real 2.92 user 0.11 sys
$
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20071115173623.GA1749>