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Mounir IDRASSI 43158eaa71 tccelf: consider DSO symbols for PROVIDE
An input shared object can be the only place where a conventional boundary name is referenced or defined. In that case the regular symbol table has no entry, but native ELF linkers still synthesize the executable definition so that it participates in dynamic symbol resolution.

Consult the input dynamic symbol table before treating a plain boundary name as unreferenced. Exercise the case with a DSO-defined end symbol whose address must be interposed by the executable's final boundary.
2026-07-28 18:06:06 +09:00
.github/workflows review some recent changes 2026-07-08 14:01:40 +02:00
examples Small updates 2025-12-17 20:22:08 +01:00
include tccgen: void values, etc... 2026-05-06 13:46:27 +02:00
lib review some recent changes 2026-07-08 14:01:40 +02:00
tests tccelf: consider DSO symbols for PROVIDE 2026-07-28 18:06:06 +09:00
win32 win32: define arm64 Interlocked helpers in winnt.h 2026-05-23 22:39:17 +09:00
.gitignore reverts (11/2025 - 04/2026) 2026-05-03 11:09:45 +02:00
arm64-asm.c arm64-win32 review: fix problems and pass tests 2026-05-04 12:51:10 +02:00
arm64-gen.c tls: fix local-exec addresses and external symbols 2026-07-10 23:58:23 +09:00
arm64-link.c review generic tls support 2026-07-08 14:01:52 +02:00
arm64-tok.h arm64-win32 support : arm64 assembler 2026-05-04 12:49:53 +02:00
arm-asm.c {arm,i386,riscv64}-asm.c: fix generic operand modifier 'n' not negating 2026-07-24 19:27:21 +02:00
arm-gen.c review platform tls support 2026-07-08 14:01:56 +02:00
arm-link.c review generic tls support 2026-07-08 14:01:52 +02:00
arm-tok.h arm-asm: Accept additional register names 2025-05-07 22:29:46 +02:00
c67-gen.c some reverts & fixes 2026-01-10 13:46:23 +01:00
c67-link.c div fixes 2024-06-11 14:26:34 +02:00
Changelog configury update & bump VERSION to 0.9.28rc 2023-09-06 22:42:52 +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 configure & tcc.h: include & lib searchpath cleanup 2026-05-06 13:46:42 +02:00
conftest.c configury update & bump VERSION to 0.9.28rc 2023-09-06 22:42:52 +02:00
COPYING changed license to LGPL 2003-05-24 14:18:56 +00:00
dwarf.h Add dwarf support 2022-05-05 09:10:37 +02:00
elf.h riscv64: emit .riscv.attributes section in ELF output 2026-05-07 11:44:46 +08:00
i386-asm.c {arm,i386,riscv64}-asm.c: fix generic operand modifier 'n' not negating 2026-07-24 19:27:21 +02:00
i386-asm.h Add endbr32 for i386 2025-07-14 08:27:14 +02:00
i386-gen.c tls: fix local-exec addresses and external symbols 2026-07-10 23:58:23 +09:00
i386-link.c review generic tls support 2026-07-08 14:01:52 +02:00
i386-tok.h x86asm: Add lzcnt/tzcnt support 2022-12-13 11:34:54 +01:00
il-gen.c revert "Save registers around attribute cleanup" (almost) 2025-05-25 00:20:23 +02:00
il-opcodes.h Revert all of my changes to directories & codingstyle. 2015-07-29 16:57:12 -04:00
libtcc.c Some more TLS changes 2026-07-09 07:54:16 +02:00
libtcc.h reverts (11/2025 - 04/2026) 2026-05-03 11:09:45 +02:00
Makefile Makefile: restore doc targets 2026-07-14 09:19:24 +03:00
README Reverts & cleanups 2025-10-09 13:08:33 +02:00
RELICENSING Relicensing TinyCC 2026-04-16 10:45:24 -03:00
riscv64-asm.c {arm,i386,riscv64}-asm.c: fix generic operand modifier 'n' not negating 2026-07-24 19:27:21 +02:00
riscv64-gen.c tls: fix local-exec addresses and external symbols 2026-07-10 23:58:23 +09:00
riscv64-link.c review generic tls support 2026-07-08 14:01:52 +02:00
riscv64-tok.h riscv64-asm: complete AMO aq/rl suffixes for all ops 2026-05-07 11:44:46 +08:00
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 review some recent changes 2026-07-08 14:01:40 +02:00
tcc.c configure & tcc.h: include & lib searchpath cleanup 2026-05-06 13:46:42 +02:00
tcc.h tccelf: provide complete ELF boundary symbols 2026-07-28 18:06:04 +09:00
tccasm.c tccgen: void values, etc... 2026-05-06 13:46:27 +02:00
tcccoff.c tcc_error_noabort(): always use this unless compiling 2023-04-25 15:22:03 +02:00
tccdbg.c Relocation updates 2025-12-23 06:46:22 +01:00
tccelf.c tccelf: consider DSO symbols for PROVIDE 2026-07-28 18:06:06 +09:00
tccgen.c Some more TLS changes 2026-07-09 07:54:16 +02:00
tcclib.h arm64-win32 review: fix problems and pass tests 2026-05-04 12:51:10 +02:00
tccmacho.c fix: TLS test failures on osx/win32/armv7 2026-05-13 12:28:58 +08:00
tccpe.c win32: handle quoted LIBRARY names in def files 2026-07-28 11:01:33 +09:00
tccpp.c win32: simplify tcc 0.9.27 self-host (part 2 of 2) 2026-07-14 16:46:05 +03:00
tccrun.c review some recent changes 2026-07-08 14:01:40 +02:00
tcctok.h riscv64: enable gen_clear_cache with I-cache flushing 2026-05-31 22:36:41 +08:00
tcctools.c tcc.c:main() free all & etc... 2025-08-18 20:43:52 +02:00
texi2pod.pl Revert all of my changes to directories & codingstyle. 2015-07-29 16:57:12 -04:00
TODO testing 2025-07-21 00:48:51 -03:00
USES configury update & bump VERSION to 0.9.28rc 2023-09-06 22:42:52 +02:00
VERSION configury update & bump VERSION to 0.9.28rc 2023-09-06 22:42:52 +02:00
x86_64-asm.h x86-64: Fix cvts*2si 2025-12-03 17:21:00 +02:00
x86_64-gen.c Some more TLS changes 2026-07-09 07:54:16 +02:00
x86_64-link.c review generic tls support 2026-07-08 14:01:52 +02:00

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 machine code for i386, x86_64, arm, aarch64 or
  riscv64.  Compiles and links about 10 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 Linux, BSD variants or macOS hosts:

   ./configure
   make
   make test
   make install

   Notes: On BSD hosts, 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 for the Windows port is in tcc-win32.txt.

License:
-------

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

Fabrice Bellard.