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James Lyon 41b3c7a507 Improved variable length array support.
VLA storage is now freed when it goes out of scope. This makes it
possible to use a VLA inside a loop without consuming an unlimited
amount of memory.

Combining VLAs with alloca() should work as in GCC - when a VLA is
freed, memory allocated by alloca() after the VLA was created is also
freed. There are some exceptions to this rule when using goto: if a VLA
is in scope at the goto, jumping to a label will reset the stack pointer
to where it was immediately after the last VLA was created prior to the
label, or to what it was before the first VLA was created if the label
is outside the scope of any VLA. This means that in some cases combining
alloca() and VLAs will free alloca() memory where GCC would not.
2013-04-27 22:58:52 +01:00
examples Revert "Make ex1.c and ex4.c be executable on any systems" 2012-06-12 15:45:13 +02:00
include Fixed x86-64 long double passing. 2013-04-26 16:42:12 +01:00
lib Fixed x86-64 long double passing. 2013-04-26 16:42:12 +01:00
tests Improved variable length array support. 2013-04-27 22:58:52 +01:00
win32 add version number to manpage 2013-02-17 00:48:51 +01:00
.gitignore x86-64 ABI fixes. 2013-04-19 00:46:49 +01:00
arm-gen.c Improved variable length array support. 2013-04-27 22:58:52 +01:00
c67-gen.c Improved variable length array support. 2013-04-27 22:58:52 +01:00
Changelog Add support for KfreeBSD 64bits 2013-02-18 11:42:49 +01:00
CMakeLists.txt Improved variable length array support. 2013-04-27 22:58:52 +01:00
coff.h add version number to manpage 2013-02-17 00:48:51 +01:00
config.h.in Improved variable length array support. 2013-04-27 22:58:52 +01:00
config.texi.in Added cross compilation to CMake build system. 2013-04-25 01:08:18 +01:00
configure Improved variable length array support. 2013-04-27 22:58:52 +01:00
conftest.c Add arm ABI detection in conftest.c 2013-02-14 16:40:16 +01:00
COPYING changed license to LGPL 2003-05-24 14:18:56 +00:00
elf.h add version number to manpage 2013-02-17 00:48:51 +01:00
i386-asm.c add version number to manpage 2013-02-17 00:48:51 +01:00
i386-asm.h i386-asm: support "pause" opcode 2011-02-24 09:38:13 -08:00
i386-gen.c Improved variable length array support. 2013-04-27 22:58:52 +01:00
i386-tok.h integrate x86_64-asm.c into i386-asm.c 2009-12-19 22:16:20 +01:00
il-gen.c add version number to manpage 2013-02-17 00:48:51 +01:00
il-opcodes.h added CIL target 2002-02-10 16:14:03 +00:00
libtcc.c Sorted out CMake on x86-64 and fixed silly XMM# bug introduced when working on Win64 stdargs. 2013-04-25 22:30:53 +01:00
libtcc.h libtcc: new LIBTCCAPI tcc_set_options(TCCState*, const char*str) 2013-02-12 19:13:28 +01:00
Makefile Sorted out CMake on x86-64 and fixed silly XMM# bug introduced when working on Win64 stdargs. 2013-04-25 22:30:53 +01:00
README Fix building instruction wrt make/gmake 2013-04-08 23:26:27 +02:00
stab.def added 2002-12-08 14:36:36 +00:00
stab.h added 2002-12-08 14:36:36 +00:00
tcc-doc.texi document $CPATH, $C_INCLUDE_PATH, $LIBRARY_PATH 2013-02-20 14:23:44 +01:00
tcc.c x86-64 ABI fixes. 2013-04-19 00:46:49 +01:00
tcc.h Improved variable length array support. 2013-04-27 22:58:52 +01:00
tccasm.c configure: cleanup 2013-02-14 06:53:07 +01:00
tcccoff.c portability: fix void* <-> target address conversion confusion 2013-02-04 16:24:59 +01:00
tccelf.c add version number to manpage 2013-02-17 00:48:51 +01:00
tccgen.c Improved variable length array support. 2013-04-27 22:58:52 +01:00
tcclib.h Sorted out CMake on x86-64 and fixed silly XMM# bug introduced when working on Win64 stdargs. 2013-04-25 22:30:53 +01:00
tccpe.c add version number to manpage 2013-02-17 00:48:51 +01:00
tccpp.c remove doubled prototype 2013-02-18 15:44:18 +01:00
tccrun.c Fix synchronization between data and instr caches 2013-03-19 14:03:15 +01:00
tcctok.h 64-bit tests now pass (well, nearly). 2013-04-24 02:19:15 +01:00
texi2pod.pl automatic man page generation from tcc-doc.texi 2003-05-18 18:11:06 +00:00
TODO remove doubled prototype 2013-02-18 15:44:18 +01:00
VERSION Release TinyCC 0.9.26 2013-02-15 14:23:58 +01:00
x86_64-asm.h x86-64: fix udiv, add cqto instruction 2009-12-19 22:16:19 +01:00
x86_64-gen.c Improved variable length array support. 2013-04-27 22:58:52 +01:00

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/x86_64/arm Linux/OSX/FreeBSD host (for Windows read tcc-win32.txt)

Note: For OSX and FreeBSD, gmake should be used instead of make.

   ./configure
   make
   make test
   make install

Alternatively, out-of-tree builds are supported: you may use different
directories to hold build objects, kept separate from your source tree:

   mkdir _build
   cd _build
   ../configure
   make
   make test
   make install

Texi2html must be installed to compile the doc. 
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 ! As for ex1.c, can also be launched
directly as a script: './ex4.c'.

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 tcc-win32.txt.

License:
-------

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

Fabrice Bellard.