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David Given c084f9f224 Remove the Mark() and Release() procedures from the Pascal compiler and 
standard library, because they never worked and come from an achingly old
version of the Pascal specification. Fix the implementations of New() and
Dispose() to use the standard C memory allocator rather than rolling their own
(also in C). Write test!
2016-11-24 20:35:26 +01:00
..
include Change sbrk() to take an int rather than an intptr_t (following the OpenBSD way 2016-11-23 22:06:24 +01:00
libsys Forgot to check in the change to qemuppc's brk() to set errno on memory 2016-11-24 19:47:11 +01:00
tests Remove the Mark() and Release() procedures from the Pascal compiler and 2016-11-24 20:35:26 +01:00
boot.s Add just enough Open Firmware support for an output console. 2016-11-12 22:09:54 +01:00
build-pkg.lua Add a rather bodged test framework for the qemuppc plat, which only runs if the 2016-11-13 13:37:22 +01:00
build-tools.lua Add the very experimental qemuppc plat, intended to generate minimal images 2016-11-12 19:20:58 +01:00
descr Made csa and csb work with mcg; adjust the libem functions and the 2016-11-19 10:55:41 +01:00
README Add the very experimental qemuppc plat, intended to generate minimal images 2016-11-12 19:20:58 +01:00

README 

# $Source: /cvsroot/tack/Ack/plat/linux386/README,v $
# $State: Exp $
# $Revision: 1.2 $


The linux386 platform
=====================

linux386 is an i386-based BSP that produces Linux ELF executables.

This port only implements a very limited number of system calls; basically,
just enough to make the demo apps run. Adding more is easy, but there are some
subtleties that require more thought. The port should be considered only in
proof-of-concept stage right now.

Important note: you *can't* link access ELF shared libraries from these
executables. In other words, you have to all your work from inside ACK.

IEEE floating point is available, but requires an FPU.

The executables are generated with aelfslod and are extremely simple; there's
one rwx ELF section which contains all the application's code and data. This
is not optimal, but it does work.


Bugs
====

isatty() is a stub and always returns 0.


Example command line
====================

ack -mlinux386 -O -o linux386.exe examples/paranoia.c

The file linux386.exe can then be run on a i386 Linux machine (or on an
emulation thereof).


David Given
dg@cowlark.com