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Benedikt Meurer 05627e0de4 Merge the new ARM backend into trunk (PR#5433). 
Initial merge of the new ARM backend (commit ec5b444c7f) from my development
repository at https://github.com/bmeurer/ocaml-arm/tree/ec5b444c7f .

Compared to the old ARM backend, this one does the following:
- Support for both software and hardware floating-point (VFPv3).
- Properly supports interworking with Thumb/Thumb-2 code for both OCaml and C
  code.
- Supports dynamic linking and large memory models (PR#5049).
- Optional support for position-independent code via a command line option
  -fPIC. This is disabled by default and not required for natdynlink.
- Can emit both ARM and Thumb-2 code, with avg. code size savings of 28% for
  Thumb-2 (quite close the optimal 30% advertised by ARM Ltd.).
- Supports both AAPCS (armel) as well as extended VFP calling conventions
  (armhf).
- Supports several special ARM instructions to reduce code size and latency.
- Uses standard ARM EABI runtime functions instead of relying on GCC internals.
- Supports exception backtraces.
- Supports profiling using gprof.



git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@12124 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
 		2012-02-04 10:15:24 +00:00
asmcomp Merge the new ARM backend into trunk (PR#5433). 2012-02-04 10:15:24 +00:00
asmrun Merge the new ARM backend into trunk (PR#5433). 2012-02-04 10:15:24 +00:00
boot Fix PR#4072 2012-02-01 09:30:23 +00:00
build Don't attempt to install Camlp4 if -no-camlp4 was specified. 2012-02-03 12:03:04 +00:00
bytecomp Fix PR#4072 2012-02-01 09:30:23 +00:00
byterun fix whitespace 2012-01-26 14:13:51 +00:00
camlp4 Merge the unused_declarations branch. 2012-01-18 09:15:27 +00:00
config Fix #5439: Upgrade to latest config.guess and config.sub. 2012-01-18 09:32:12 +00:00
debugger merge branches/gadts-devel 2011-11-24 09:02:48 +00:00
driver PR#1898: add -nopromptcont option to suppress secondary prompts 2012-01-27 12:48:15 +00:00
emacs PR#5176: caml-types.el: large types trigger stack overflow in regexp matcher 2012-02-03 20:37:26 +00:00
experimental a patch to allow 'with module type S = ...' and 'S := ...' 2012-01-10 04:10:41 +00:00
lex renaming of Objective Caml to OCaml and cleanup of copyright headers 2011-07-27 14:17:02 +00:00
man document the interval notation for warning sets; use it for default warnings 2012-01-27 13:28:56 +00:00
ocamlbuild Fix PR#5461 2012-01-17 21:57:54 +00:00
ocamldoc at least on my machine, makeindex doesn't like "|"| in a \verb within a \index 2012-02-03 16:02:28 +00:00
otherlibs Partial fix for #5398: at least avoid an out-of-bounds access. 2012-01-30 16:07:18 +00:00
parsing Reverting bad commit. 2012-01-20 14:23:34 +00:00
stdlib hack to make ocamldoc happy; should be fixed properly 2012-02-03 16:01:06 +00:00
testsuite Fix missing reference files in letrec testsuite 2012-01-23 14:58:33 +00:00
tools Small fix on the previous commit 2012-01-27 13:58:04 +00:00
toplevel PR#1898: add -nopromptcont option to suppress secondary prompts 2012-01-27 12:48:15 +00:00
typing Fix PR#5498 2012-02-03 05:58:57 +00:00
utils document the interval notation for warning sets; use it for default warnings 2012-01-27 13:28:56 +00:00
win32caml #5179: the 'official' 32-bit mingw compiler is now the one from the mingw-w64 project, packaged in Cygwin (as supported by flexdll 0.27). 2011-12-12 11:38:06 +00:00
yacc renaming of Objective Caml to OCaml and cleanup of copyright headers 2011-07-27 14:17:02 +00:00
.depend Direct implementation of the approximation of free identifiers + get rid of Unused_var module. 2012-01-18 17:41:12 +00:00
.ignore uniform .ignore system 2011-07-20 15:37:36 +00:00
Changes Merge the new ARM backend into trunk (PR#5433). 2012-02-04 10:15:24 +00:00
INSTALL merge changes from 3.12.0 to 3.12.1 2011-07-20 09:17:07 +00:00
LICENSE merge changes from 3.12.0 to 3.12.1 2011-07-20 09:17:07 +00:00
Makefile fix configure on MacOSX/64-bit; add an option to configure or build without camlp4 2012-01-23 15:18:22 +00:00
Makefile.nt Unused_var has been removed. 2012-01-18 18:50:31 +00:00
README Removed the obsolete native-code generators for Alpha, HPPA, IA64 and MIPS. 2011-12-17 11:12:50 +00:00
README.win32 update instructions for recompilation under MSVC 2012-02-03 16:03:43 +00:00
Upgrading clean up spaces and tabs 2010-01-22 12:48:24 +00:00
VERSION PR#1835: add function Digest.from_hex 2012-01-26 22:56:48 +00:00
_tags renaming of Objective Caml to OCaml and cleanup of copyright headers 2011-07-27 14:17:02 +00:00
configure Merge the new ARM backend into trunk (PR#5433). 2012-02-04 10:15:24 +00:00
myocamlbuild.ml Fix PR#5475 2012-01-17 21:47:36 +00:00
myocamlbuild_config.mli #5478: makes it possible to specify a custom 'ar' command. 2012-01-16 09:05:37 +00:00

README 

OVERVIEW:

OCaml is an implementation of the ML language, based on the Caml Light
dialect extended with a complete class-based object system and a
powerful module system in the style of Standard ML.

OCaml comprises two compilers. One generates bytecode which is then
interpreted by a C program. This compiler runs quickly, generates
compact code with moderate memory requirements, and is portable to
essentially any 32 or 64 bit Unix platform. Performance of generated
programs is quite good for a bytecoded implementation.  This compiler
can be used either as a standalone, batch-oriented compiler that
produces standalone programs, or as an interactive, toplevel-based
system.

The other compiler generates high-performance native code for a number
of processors. Compilation takes longer and generates bigger code, but
the generated programs deliver excellent performance, while retaining
the moderate memory requirements of the bytecode compiler. The
native-code compiler currently runs on the following platforms:

Tier 1 (actively used and maintained by the core Caml team):

    AMD64 (Opteron)    Linux, MacOS X, MS Windows
    IA32 (Pentium)     Linux, FreeBSD, MacOS X, MS Windows
    PowerPC            Linux, MacOS X
    ARM                Linux

Tier 2 (maintained when possible, with help from users):

    AMD64              FreeBSD, OpenBSD
    IA32 (Pentium)     NetBSD, OpenBSD, Solaris 9
    PowerPC            NetBSD
    SPARC              Solaris, Linux, NetBSD

Other operating systems for the processors above have not been tested,
but the compiler may work under other operating systems with little work.

Before the introduction of objects, OCaml was known as Caml Special
Light. OCaml is almost upwards compatible with Caml Special Light,
except for a few additional reserved keywords that have forced some
renaming of standard library functions.

CONTENTS:

  Changes               what's new with each release
  INSTALL               instructions for installation
  LICENSE               license and copyright notice
  Makefile              main Makefile
  README                this file
  README.win32          infos on the MS Windows ports of O.Caml
  asmcomp/              native-code compiler and linker
  asmrun/               native-code runtime library
  boot/                 bootstrap compiler
  bytecomp/             bytecode compiler and linker
  byterun/              bytecode interpreter and runtime system
  camlp4/               the Camlp4 preprocessor
  config/               autoconfiguration stuff
  debugger/             source-level replay debugger
  driver/               driver code for the compilers
  emacs/                Caml editing mode and debugger interface for GNU Emacs
  lex/                  lexer generator
  maccaml/              the Macintosh GUI
  ocamldoc/             documentation generator
  otherlibs/            several external libraries
  parsing/              syntax analysis
  stdlib/               standard library
  tools/                various utilities
  toplevel/             interactive system
  typing/               typechecking
  utils/                utility libraries
  yacc/                 parser generator

COPYRIGHT:

All files marked "Copyright INRIA" in this distribution are copyright
1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
2007, 2008, 2009, 2010, 2011, 2012 Institut National de Recherche en
Informatique et en Automatique (INRIA) and distributed under the
conditions stated in file LICENSE.

INSTALLATION:

See the file INSTALL for installation instructions on Unix, Linux and
MacOS X machines.  For MS Windows, see README.win32.

DOCUMENTATION:

The OCaml manual is distributed in HTML, PDF, Postscript, DVI, and
Emacs Info files.  It is available on the World Wide Web, at

        http://caml.inria.fr/

AVAILABILITY:

The complete OCaml distribution can be accessed at

        http://caml.inria.fr/

KEEPING IN TOUCH WITH THE CAML COMMUNITY:

There exists a mailing list of users of the Caml implementations
developed at INRIA. The purpose of this list is to share
experience, exchange ideas (and even code), and report on applications
of the Caml language. Messages can be written in English or in
French. The list has more than 1000 subscribers.

Messages to the list should be sent to:

              caml-list@inria.fr

You can subscribe to this list via the Web interface at

        https://sympa-roc.inria.fr/wws/info/caml-list

Archives of the list are available on the Web site above.

The Usenet news groups comp.lang.ml and comp.lang.functional
also contains discussions about the ML family of programming languages,
including Caml.

BUG REPORTS AND USER FEEDBACK:

Please report bugs using the Web interface to the bug-tracking system
at http://caml.inria.fr/bin/caml-bugs

To be effective, bug reports should include a complete program
(preferably small) that exhibits the unexpected behavior, and the
configuration you are using (machine type, etc).

You can also contact the implementors directly at caml@inria.fr.


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