On 02/09/2010 07:32 AM, Will Coleda wrote:
On Mon, Feb 8, 2010 at 7:46 PM, Chris Johns<[email protected]> wrote:
On 2/9/2010 9:01 AM, Joel Sherrill wrote:
On 02/08/2010 12:57 PM, Andrew Whitworth wrote:
I'm pretty strongly in favor of this change. Having more information
available about how individual files are compiled is always a good
thing. %2 improvement on build times isn't itself a motivating factor,
but a more straight-forward build process is.
Since we (RTEMS folks) want Parrot on RTEMS don't forget
that cross-builds often will have to specify flags for CPU
model. We will add "-BBSPDIR/ -specs bsp_specs -qrtems" on
every compile line. This adds a directory to the system
path for the compiler that is board specific and augments
gcc's rules with bsp_specs.
This can be done by passing a parameter to Configure.pl - see the
--help on that for adding CFLAGS.
Chris is the one who has done all the work so far. He is in
Sidney so we will have to wait for him to comment.
If Parrot builds tools on the host require to build the target code there
needs to be 2 separate sets of flags. Does it ? Typically HOST_CFLAGS
handles the host and CFLAGS handles the target. This also goes for CC where
HOST_CC handles the host compiler and CC is the target compiler.
Chris
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We don't go out of our way to support cross-platform compilation at
the moment; we don't use HOST_CFLAGS; I /think/ there is a mechanism
to allow specifying a config file to be used instead of using the one
Configure.pl would build after probing your system. Can any parrot
porters who've done this (all 2 of you) jump in here?
--
Joel Sherrill, Ph.D. Director of Research& Development
[email protected] On-Line Applications Research
Ask me about RTEMS: a free RTOS Huntsville AL 35805
Support Available (256) 722-9985
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