Go to file
gr ef42295fe8 tccrun.c: standalone backtraces with -bt[N] or -b
This makes it possible to get backtraces with executables
(including DLLs/SOs) like we had it already with -g -run.

Option -b includes -bt, and -bt includes -g.

- new file lib/bt-exe.c: used to link rt_printline and the
  exception handler from tccrun.c into executables/DLLs.

- new file lib/bt-log.c: provides a function that may be
  called from user code to print out a backtrace with a
  message (currently for i386/x86_64 only):

     int (*tcc_backtrace)(const char *fmt, ...);

  As an extra hack, if 'fmt' is prefixed like "^file.c^..."
  then the backtrace will skip calls from within 'file.c'.

- new file lib/bt-dll.c:  used on win32 to link the backtrace
  and bcheck functions with the main module at runtime

- bcheck.c: now uses the tcc_backtrace function from above

- tccgen.c: minor cleanups

- tccelf.c: stab sections get SHF_ALLOC for easy access.
  Also in relocate_section(): 64bit relocations for stabs
  in DLLs cannot work.  To find DLL addresses, the DLL base
  is added manually in tccrun.c via rc.prog_base instead.

- tccpe.c: there are some changes to allow merging sections,
  used to merge .finit_array into .data in the first place.

- tccpp.c: tcc -run now #defines __TCC_RUN__
  also: refactor a line in tal_realloc that was incompatible
  with bcheck

- tcctest.c: fixed a problem with r12 which tcc cannot preserve
  as well as gcc does.

- tests2/112_backtrace.c: test the feature and the bcheck test18
  that previously was in boundtest.c
2020-01-17 22:58:39 +01:00
examples makefile: unify cross with native builds 2017-02-25 12:51:04 +01:00
include add C11 stdalign.h header 2019-09-08 15:04:06 +03:00
lib tccrun.c: standalone backtraces with -bt[N] or -b 2020-01-17 22:58:39 +01:00
tests tccrun.c: standalone backtraces with -bt[N] or -b 2020-01-17 22:58:39 +01:00
win32 tccrun.c: standalone backtraces with -bt[N] or -b 2020-01-17 22:58:39 +01:00
.gitignore allow libtcc states to be used concurrently 2019-12-11 02:36:19 +01:00
arm64-gen.c Adjust return value promotion for some archs 2019-12-17 01:46:06 +01:00
arm64-link.c allow libtcc states to be used concurrently 2019-12-11 02:36:19 +01:00
arm-asm.c allow libtcc states to be used concurrently 2019-12-11 02:36:19 +01:00
arm-gen.c tccrun.c: standalone backtraces with -bt[N] or -b 2020-01-17 22:58:39 +01:00
arm-link.c allow libtcc states to be used concurrently 2019-12-11 02:36:19 +01:00
c67-gen.c remove VT_LVAL_BYTE etc. 2019-12-16 20:59:23 +01:00
c67-link.c allow libtcc states to be used concurrently 2019-12-11 02:36:19 +01:00
Changelog 'long' review 2017-09-24 18:57:48 +02:00
CodingStyle CodingStyle: Remove reference to misaligned struct CString. 2016-01-06 19:09:28 +00:00
coff.h Spelling fixes in C comments only 2017-05-07 21:38:09 -07:00
configure riscv: More insns, operands and arg slots 2019-09-01 23:13:19 +02:00
conftest.c riscv64: Add skeleton target 2019-08-14 18:18:46 +02:00
COPYING changed license to LGPL 2003-05-24 14:18:56 +00:00
elf.h riscv64: Add skeleton target 2019-08-14 18:18:46 +02:00
i386-asm.c allow libtcc states to be used concurrently 2019-12-11 02:36:19 +01:00
i386-asm.h x86-asm: Fix lar opcode operands 2016-12-15 17:47:08 +01:00
i386-gen.c Cleanup new bound checking code 2020-01-16 01:19:59 +01:00
i386-link.c Update bound checking code. 2020-01-15 08:53:19 +01:00
i386-tok.h x86-64-asm: Support high registers %r8 - %r15 2016-12-15 17:47:09 +01:00
il-gen.c Spelling fixes in C comments only 2017-05-07 21:38:09 -07:00
il-opcodes.h Revert all of my changes to directories & codingstyle. 2015-07-29 16:57:12 -04:00
libtcc.c tccrun.c: standalone backtraces with -bt[N] or -b 2020-01-17 22:58:39 +01:00
libtcc.h Add error_func and error_opaque getters to libtcc 2019-10-14 09:36:14 +02:00
Makefile tccrun.c: standalone backtraces with -bt[N] or -b 2020-01-17 22:58:39 +01:00
README README: Fix typo and remove trailing whitespace 2019-09-14 15:37:20 +02:00
RELICENSING Add note about native Windows bootstrap using Cygwin. 2017-02-23 06:45:26 +01:00
riscv64-gen.c riscv64: adjust for cast changes 2019-12-17 00:48:57 +01:00
riscv64-link.c allow libtcc states to be used concurrently 2019-12-11 02:36:19 +01:00
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 tccrun.c: standalone backtraces with -bt[N] or -b 2020-01-17 22:58:39 +01:00
tcc.c tccrun.c: standalone backtraces with -bt[N] or -b 2020-01-17 22:58:39 +01:00
tcc.h tccrun.c: standalone backtraces with -bt[N] or -b 2020-01-17 22:58:39 +01:00
tccasm.c allow libtcc states to be used concurrently 2019-12-11 02:36:19 +01:00
tcccoff.c allow libtcc states to be used concurrently 2019-12-11 02:36:19 +01:00
tccelf.c tccrun.c: standalone backtraces with -bt[N] or -b 2020-01-17 22:58:39 +01:00
tccgen.c tccrun.c: standalone backtraces with -bt[N] or -b 2020-01-17 22:58:39 +01:00
tcclib.h Revert all of my changes to directories & codingstyle. 2015-07-29 16:57:12 -04:00
tccpe.c tccrun.c: standalone backtraces with -bt[N] or -b 2020-01-17 22:58:39 +01:00
tccpp.c tccrun.c: standalone backtraces with -bt[N] or -b 2020-01-17 22:58:39 +01:00
tccrun.c tccrun.c: standalone backtraces with -bt[N] or -b 2020-01-17 22:58:39 +01:00
tcctok.h bcheck cleanup 2019-12-14 13:26:18 +01:00
tcctools.c allow libtcc states to be used concurrently 2019-12-11 02:36:19 +01:00
texi2pod.pl Revert all of my changes to directories & codingstyle. 2015-07-29 16:57:12 -04:00
TODO Remove a bit-field TODO 2017-04-29 22:09:10 +02:00
VERSION update VERSION to 0.9.27 2017-02-08 19:56:15 +01:00
x86_64-asm.h x86-64-asm: Fix mov im64,rax encoding 2017-02-23 00:16:25 +01:00
x86_64-gen.c Cleanup new bound checking code 2020-01-16 01:19:59 +01:00
x86_64-link.c tccrun.c: standalone backtraces with -bt[N] or -b 2020-01-17 22:58:39 +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 toward 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

   ./configure
   make
   make test
   make install

   Notes: For OSX and FreeBSD, gmake should be used instead of make.
   For Windows read tcc-win32.txt.

makeinfo 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.