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Daniel Glöckner 12265da6cd Runtime lib functions
Yesterday I felt the urge to change a few things in TinyCC.
This is the first and biggest change of all of them.

- use __aeabi_*divmod functions in ARM EABI to make binaries depend
  solely on standardized library functions

- refactor ARM floating point <-> integer conversion a bit

- rename long long->float and shift library functions to correspond to
  the names used by GCC

- compile more tokens conditionally to reduce the size of TinyCC

The intention is primarily to allow users of the ARM target to use
libgcc (which is usually available as a shared library) instead of
libtcc1 (which can't be compiled for ARM due to lack of an inline
assembler).

Changing the EABI target to use the divmod functions in theory allows
to use it without libtcc1 on any (not necessarily GCC based) ARM EABI
system.

  Daniel
2008-09-12 22:22:36 +02:00
examples moved examples 2005-04-14 23:56:18 +00:00
win32 get rid of a warning and fix .bat 2008-03-25 21:05:48 +00:00
.cvsignore update 2005-04-15 00:11:02 +00:00
COPYING changed license to LGPL 2003-05-24 14:18:56 +00:00
Changelog update manual, changelog 2008-03-31 19:50:58 +00:00
Makefile Patch for DESTDIR installation (Adam Sampson) 2008-09-12 02:36:26 +02:00
README update 2005-06-17 22:07:03 +00:00
TODO Udated and cleaned up TODO. 2008-01-16 22:33:56 +00:00
VERSION update 2006-10-28 14:47:46 +00:00
alloca86-bt.S Just warn about unknown directives, define __STDC_VERSION__=199901L 2008-01-16 20:16:35 +00:00
alloca86.S Just warn about unknown directives, define __STDC_VERSION__=199901L 2008-01-16 20:16:35 +00:00
arm-gen.c Runtime lib functions 2008-09-12 22:22:36 +02:00
asmtest.S update 2004-10-18 00:12:31 +00:00
bcheck.c Import changesets (part 4) 428,457,460,467: defines for openbsd etc. 2007-12-16 18:24:44 +00:00
boundtest.c added strlen test 2002-02-10 16:14:56 +00:00
c67-gen.c Set VT_LVAL_xxx flags for function arguments in gfunc_prolog (Daniel Glöckner) 2008-09-12 02:36:32 +02:00
coff.h C67 COFF executable format support (TK) 2004-10-05 22:33:55 +00:00
configure Checkin tiny_libmaker (ar replacement) by Timovj Lahde 2008-03-08 19:55:47 +00:00
elf.h Use _WIN32 for a windows hosted tcc and define it for the PE target. 2007-12-13 19:07:19 +00:00
float.h added float.h std header 2001-12-13 23:21:29 +00:00
gcctestsuite.sh update 2003-10-05 09:48:53 +00:00
i386-asm.c get rid of a warning and fix .bat 2008-03-25 21:05:48 +00:00
i386-asm.h push/pop fixes - added fxsave and fxrstor 2004-10-18 00:14:16 +00:00
i386-gen.c Set VT_LVAL_xxx flags for function arguments in gfunc_prolog (Daniel Glöckner) 2008-09-12 02:36:32 +02:00
il-gen.c Set VT_LVAL_xxx flags for function arguments in gfunc_prolog (Daniel Glöckner) 2008-09-12 02:36:32 +02:00
il-opcodes.h added CIL target 2002-02-10 16:14:03 +00:00
libtcc.h initial implementation of -E option 2006-10-16 19:44:00 +00:00
libtcc1.c Runtime lib functions 2008-09-12 22:22:36 +02:00
libtcc_test.c win32 configure 2004-10-07 21:11:43 +00:00
stab.def added 2002-12-08 14:36:36 +00:00
stab.h added 2002-12-08 14:36:36 +00:00
stdarg.h added va_copy() 2006-10-28 19:45:50 +00:00
stdbool.h update 2001-12-17 21:57:01 +00:00
stddef.h Import more changesets from Rob Landley's fork (part 2) 2007-11-21 17:16:31 +00:00
tcc-doc.texi update manual, changelog 2008-03-31 19:50:58 +00:00
tcc.c Runtime lib functions 2008-09-12 22:22:36 +02:00
tccasm.c Import more changesets from Rob Landley's fork (part 2) 2007-11-21 17:16:31 +00:00
tcccoff.c added -f[no-]leading-underscore 2005-06-15 22:32:10 +00:00
tccelf.c release loaded dlls cleanly (Sam K) 2008-05-05 22:40:49 +00:00
tcclib.h added include tests 2002-08-18 13:25:12 +00:00
tccpe.c release loaded dlls cleanly (Sam K) 2008-05-05 22:40:49 +00:00
tcctest.c update manual, changelog 2008-03-31 19:50:58 +00:00
tcctok.h Runtime lib functions 2008-09-12 22:22:36 +02:00
texi2pod.pl automatic man page generation from tcc-doc.texi 2003-05-18 18:11:06 +00:00
varargs.h added varargs.h 2002-11-24 15:59:16 +00:00

README

Tiny C Compiler - C Scripting Everywhere - The Smallest ANSI C compiler
-----------------------------------------------------------------------

Features:
--------

- SMALL! You can compile and execute C code everywhere, for example on
  rescue disks.

- FAST! tcc generates optimized x86 code. No byte code
  overhead. Compile, assemble and link about 7 times faster than 'gcc
  -O0'.

- UNLIMITED! Any C dynamic library can be used directly. TCC is
  heading torward full ISOC99 compliance. TCC can of course compile
  itself.

- SAFE! tcc includes an optional memory and bound checker. Bound
  checked code can be mixed freely with standard code.

- Compile and execute C source directly. No linking or assembly
  necessary. Full C preprocessor included. 

- C script supported : just add '#!/usr/local/bin/tcc -run' at the first
  line of your C source, and execute it directly from the command
  line.

Documentation:
-------------

1) Installation on a i386 Linux host (for Windows read win32/readme.txt)

   ./configure
   make
   make test
   make install

By default, tcc is installed in /usr/local/bin.
./configure --help  shows configuration options.


2) Introduction

We assume here that you know ANSI C. Look at the example ex1.c to know
what the programs look like.

The include file <tcclib.h> can be used if you want a small basic libc
include support (especially useful for floppy disks). Of course, you
can also use standard headers, although they are slower to compile.

You can begin your C script with '#!/usr/local/bin/tcc -run' on the first
line and set its execute bits (chmod a+x your_script). Then, you can
launch the C code as a shell or perl script :-) The command line
arguments are put in 'argc' and 'argv' of the main functions, as in
ANSI C.

3) Examples

ex1.c: simplest example (hello world). Can also be launched directly
as a script: './ex1.c'.

ex2.c: more complicated example: find a number with the four
operations given a list of numbers (benchmark).

ex3.c: compute fibonacci numbers (benchmark).

ex4.c: more complicated: X11 program. Very complicated test in fact
because standard headers are being used !

ex5.c: 'hello world' with standard glibc headers.

tcc.c: TCC can of course compile itself. Used to check the code
generator.

tcctest.c: auto test for TCC which tests many subtle possible bugs. Used
when doing 'make test'.

4) Full Documentation

Please read tcc-doc.html to have all the features of TCC.

Additional information is available for the Windows port in
win32/readme.txt.

License:
-------

TCC is distributed under the GNU Lesser General Public License (see
COPYING file).

Fabrice Bellard.