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Thomas Preud'homme bf692af31b Fix error logic for undefined reference in library
Prior to this patch, an error would only be given when a library has an
unresolved undefined symbol if there is no undefined reference for the
same symbol in the executable itself. This patch changes the logic to
check both that the executable has the symbol in its static symbol table
*and* that it is defined to decide if the error path should be followed.
2016-12-03 17:26:51 +00:00
examples Revert "Make ex1.c and ex4.c be executable on any systems" 2012-06-12 15:45:13 +02:00
include Avoid conflicting definition for va_list on 64-bit Macs 2016-08-04 13:14:52 -04:00
lib Remove warning when __builtin_frame_address is used with gcc >= 6. 2016-11-30 06:18:48 +01:00
tests Implement gcc bitfield algorithm; add -mms-bitfields 2016-11-28 09:01:12 -05:00
win32 tccrun/win64: cleanup runtime function table 2016-10-19 19:21:27 +02:00
.gitignore Move utility functions `trimfront/back` to tccpp.c 2016-04-13 14:33:21 +03:00
COPYING changed license to LGPL 2003-05-24 14:18:56 +00:00
Changelog Revert all of my changes to directories & codingstyle. 2015-07-29 16:57:12 -04:00
CodingStyle CodingStyle: Remove reference to misaligned struct CString. 2016-01-06 19:09:28 +00:00
Makefile x86_64-asm: =m operand fixes 2016-11-20 14:50:56 +01:00
README Fix building instruction wrt make/gmake 2013-04-08 23:26:27 +02:00
RELICENSING Adding two more people to the RELICENSING file. 2015-07-31 16:56:23 -04:00
TODO Insert spaces between certain tokens when tcc is invoked with -E. 2016-05-09 19:27:31 +01:00
VERSION Release TinyCC 0.9.26 2013-02-15 14:23:58 +01:00
arm-gen.c arm-gen.c: support VLAs 2016-10-09 00:14:40 +02:00
arm64-gen.c arm64: Fix -run 2016-10-14 17:32:10 +02:00
c67-gen.c Merge the integer members of union CValue into "uint64_t i". 2015-11-17 19:09:35 +00:00
coff.h Revert all of my changes to directories & codingstyle. 2015-07-29 16:57:12 -04:00
configure configure: prefer lib64 on 64-bit platforms 2016-11-28 14:48:54 +01:00
conftest.c Revert all of my changes to directories & codingstyle. 2015-07-29 16:57:12 -04:00
elf.h tccgen: scopes levels for local symbols (update 1) 2016-05-05 20:04:00 +02:00
i386-asm.c tccelf: introduce add32/64le() 2016-11-20 14:52:56 +01:00
i386-asm.h x86-asm: Reject some invalid arith imm8 instruction 2016-05-16 05:10:21 +02:00
i386-gen.c i386 + bcheck: fix __bound_local_new 2016-11-09 01:04:45 -08:00
i386-tok.h x86_64-asm: =m operand fixes 2016-11-20 14:50:56 +01:00
il-gen.c Revert all of my changes to directories & codingstyle. 2015-07-29 16:57:12 -04:00
il-opcodes.h Revert all of my changes to directories & codingstyle. 2015-07-29 16:57:12 -04:00
libtcc.c Implement gcc bitfield algorithm; add -mms-bitfields 2016-11-28 09:01:12 -05:00
libtcc.h libtcc: filetype cleanup 2016-10-01 20:46:16 +02:00
stab.def Revert all of my changes to directories & codingstyle. 2015-07-29 16:57:12 -04:00
stab.h Revert all of my changes to directories & codingstyle. 2015-07-29 16:57:12 -04:00
tcc-doc.texi Implement gcc bitfield algorithm; add -mms-bitfields 2016-11-28 09:01:12 -05:00
tcc.c Implement gcc bitfield algorithm; add -mms-bitfields 2016-11-28 09:01:12 -05:00
tcc.h Implement gcc bitfield algorithm; add -mms-bitfields 2016-11-28 09:01:12 -05:00
tccasm.c x86_64-asm: =m operand fixes 2016-11-20 14:50:56 +01:00
tcccoff.c Revert all of my changes to directories & codingstyle. 2015-07-29 16:57:12 -04:00
tccelf.c Fix error logic for undefined reference in library 2016-12-03 17:26:51 +00:00
tccgen.c Implement gcc bitfield algorithm; add -mms-bitfields 2016-11-28 09:01:12 -05:00
tcclib.h Revert all of my changes to directories & codingstyle. 2015-07-29 16:57:12 -04:00
tccpe.c tccpp_new/delete and other cleanups 2016-10-17 23:24:01 +02:00
tccpp.c tccgen: fix inline_functions double free fix 2016-11-11 20:25:13 +01:00
tccrun.c x86_64-asm: =m operand fixes 2016-11-20 14:50:56 +01:00
tcctok.h lib/libtcc1.c: cleanup 2016-10-19 19:21:36 +02:00
texi2pod.pl Revert all of my changes to directories & codingstyle. 2015-07-29 16:57:12 -04:00
x86_64-asm.h x86-asm: Reject some invalid arith imm8 instruction 2016-05-16 05:10:21 +02:00
x86_64-gen.c i386 + bcheck: fix __bound_local_new 2016-11-09 01:04:45 -08:00

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/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.