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Michael Matz 86ac6b9bee x86_64: Fix indirection in struct paramaters
The first loop setting up struct arguments must not remove
elements from the vstack (via vtop--), as gen_reg needs them to
potentially evict some argument still held in registers to stack.

Swapping the arg in question to top (and back to its place) also
simplifies the vstore call itself, as not funny save/restore
or some "non-existing" stack elements need to be done.

Generally for a stack a vop-- operation conceptually clobbers
that element, so further references to it aren't allowed anymore.
2012-04-18 20:57:13 +02:00
examples Make ex1.c and ex4.c be executable on any systems 2011-07-07 12:17:04 +02:00
include Remove semicolon in x86-64 va_arg definition. 2011-08-05 20:32:57 +02:00
lib Further changes improving the OSX build. Everything builds. libtest passes. 2012-03-06 13:26:36 -05:00
tests x86_64: Fix indirection in struct paramaters 2012-04-18 20:57:13 +02:00
win32 win32: tcc.exe uses libtcc.dll 2012-04-18 18:38:11 +02:00
.gitignore Further changes improving the OSX build. Everything builds. libtest passes. 2012-03-06 13:26:36 -05:00
COPYING changed license to LGPL 2003-05-24 14:18:56 +00:00
Changelog Update Changelog 2011-05-17 23:40:49 +02:00
Makefile support "x86_64-linux-gnu" subdirs with lib & include 2012-04-18 18:44:39 +02:00
README Document in README that ex4.c can be executed. 2011-07-07 12:15:43 +02:00
TODO re-apply VLA by Thomas Preud'homme 2011-04-06 09:17:03 -07:00
VERSION update Changelog, bump version: 0.9.25 2009-05-11 19:01:26 +02:00
arm-gen.c Remove vnrott (duplicate vrotb) 2012-03-14 15:39:16 +01:00
c67-gen.c rename error/warning -> tcc_(error/warning) 2011-08-11 17:07:56 +02:00
coff.h C67 COFF executable format support (TK) 2004-10-05 22:33:55 +00:00
configure Revert "Multiple fixes for 64 bit sections" 2012-03-03 10:12:06 -06:00
elf.h elf.h: define SHF_MERGE etc. 2011-07-14 19:35:20 +02:00
i386-asm.c rename error/warning -> tcc_(error/warning) 2011-08-11 17:07:56 +02:00
i386-asm.h i386-asm: support "pause" opcode 2011-02-24 09:38:13 -08:00
i386-gen.c i386: fix loading of LLOCAL floats 2012-01-23 01:45:11 +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 rename error/warning -> tcc_(error/warning) 2011-08-11 17:07:56 +02:00
il-opcodes.h added CIL target 2002-02-10 16:14:03 +00:00
libtcc.c libtcc: tcc_get_symbol uses the TCCState parameter 2012-04-18 18:48:26 +02:00
libtcc.h libtcc: minor adjustments 2011-08-11 16:55:30 +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 Inform user that -b only exists on i386. 2012-03-13 19:43:43 +01:00
tcc.c tcc.c: fix previous commit "Use CString to concat linker options" 2012-04-18 18:32:37 +02:00
tcc.h libtcc: tcc_get_symbol uses the TCCState parameter 2012-04-18 18:48:26 +02:00
tccasm.c Compile tccasm.c conditionally (TCC_CONFIG_ASM) 2012-01-06 18:34:21 +01:00
tcccoff.c rename error/warning -> tcc_(error/warning) 2011-08-11 17:07:56 +02:00
tccelf.c libtcc: tcc_get_symbol uses the TCCState parameter 2012-04-18 18:48:26 +02:00
tccgen.c Fix bitfield loads into char/short. 2012-04-18 20:57:13 +02:00
tccpe.c tcc.h: define TCC_IS_NATIVE 2012-03-05 20:15:56 +01:00
tccpp.c tcc_realloc: auto "memory full" error 2012-04-18 18:43:55 +02:00
tccrun.c tcc.h: define TCC_IS_NATIVE 2012-03-05 20:15:56 +01:00
tcctok.h tcctok.h: fix ifdef target/host confusion 2011-04-12 00:11:47 -07:00
texi2pod.pl automatic man page generation from tcc-doc.texi 2003-05-18 18:11:06 +00:00
x86_64-asm.h x86-64: fix udiv, add cqto instruction 2009-12-19 22:16:19 +01:00
x86_64-gen.c x86_64: Fix indirection in struct paramaters 2012-04-18 20:57:13 +02:00

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 tcc-win32.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 ! 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.