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Dylan Fei b8513fe895 arm64-gen: fix address calculation for large symbol offsets
When accessing a global symbol with an addend > 0xffffff, the AArch64
backend incorrectly encoded an 'add xr, xt, #0' (Add Immediate)
instead of 'add xr, xr, xt' (Add Register).

This resulted in the base address of the symbol being overwritten
by the offset value rather than being summed with it.

Fixes the issue where (sym + 0x1000000) would resolve to 0x1000000
instead of the correct memory address.
2025-12-28 21:32:58 +08:00
.github/workflows Use macos 15 in build.yml 2025-12-17 18:21:01 +01:00
examples Small updates 2025-12-17 20:22:08 +01:00
include Add bound check support for alloca on all targets 2025-11-29 07:54:28 +01:00
lib Move -run -nostdlib code to lib directory 2025-12-15 14:45:11 +01:00
tests Fix clang macos 15 bug on arm64 in tests/tcctest.c 2025-12-17 19:54:22 +01:00
win32 Add WM_MOUSEHWHEEL to winuser.h 2025-11-26 11:10:10 +13:00
.gitignore make: make shorter command lines 2024-11-30 20:05:02 +01:00
arm64-asm.c Revert "Move almost all global variables to TCCState, actually all tests pass on Ubuntu 18.04 x86_64" 2021-10-22 07:39:54 +02:00
arm64-gen.c arm64-gen: fix address calculation for large symbol offsets 2025-12-28 21:32:58 +08:00
arm64-link.c Add support for backtrace() 2024-11-09 08:04:45 +01:00
arm-asm.c arm-asm: Accept additional register names 2025-05-07 22:29:46 +02:00
arm-gen.c Move -run -nostdlib code to lib directory 2025-12-15 14:45:11 +01:00
arm-link.c tccgen.c: fix two scope problems 2025-08-22 19:14:44 +02:00
arm-tok.h arm-asm: Accept additional register names 2025-05-07 22:29:46 +02:00
c67-gen.c tccgen: local scope for types of function parameters 2025-08-18 21:06:03 +02:00
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 Problems solved on for libtcc, pie, riscv64, arm64 2025-12-21 07:05:55 +01:00
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 Problems solved on for libtcc, pie, riscv64, arm64 2025-12-21 07:05:55 +01:00
i386-asm.c i386-asm.c: Optional % for variables in specific registers 2025-09-21 13:18:37 +02:00
i386-asm.h Add endbr32 for i386 2025-07-14 08:27:14 +02:00
i386-gen.c Move -run -nostdlib code to lib directory 2025-12-15 14:45:11 +01:00
i386-link.c div fixes 2024-06-11 14:26:34 +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 Problems solved on for libtcc, pie, riscv64, arm64 2025-12-21 07:05:55 +01:00
libtcc.h tccrun: resign from "advanced" system calls (memaligh/gettid) 2024-02-25 19:55:06 +01:00
Makefile Relocation updates 2025-12-23 06:46:22 +01:00
optclash tcc options: document behavior and clashes (no-op) 2025-10-27 14:50:54 +02:00
README Reverts & cleanups 2025-10-09 13:08:33 +02:00
RELICENSING Relicensing TinyCC 2024-08-11 15:18:36 +02:00
riscv64-asm.c rv64: Implement some pseudo-ops from Zicsr 2025-11-29 21:11:46 +02:00
riscv64-gen.c Fix pointer difference issue in aarch64/riscv64 2025-12-23 16:01:10 +08:00
riscv64-link.c Problems solved on for libtcc, pie, riscv64, arm64 2025-12-21 07:05:55 +01:00
riscv64-tok.h Implement some RV64F/D instructions 2025-11-28 15:23:07 +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 linker options & tcc_load_ldscript() reworked 2025-03-28 21:23:19 +01:00
tcc.c tcc -run: support custom stdin with -rstdin FILE 2025-10-27 14:50:56 +02:00
tcc.h Move -run -nostdlib code to lib directory 2025-12-15 14:45:11 +01:00
tccasm.c allow cross compiling for alloca on arm64 2025-12-01 18:09:04 +01:00
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 elf: Set ph sizes only if ph was allocated 2025-11-29 22:28:36 +02:00
tccgen.c Set TYPE_PARAM parsing mode in old-style param lists 2025-12-02 07:30:27 +02:00
tcclib.h Revert all of my changes to directories & codingstyle. 2015-07-29 16:57:12 -04:00
tccmacho.c linker options & tcc_load_ldscript() reworked 2025-03-28 21:23:19 +01:00
tccpe.c tccpe: add COFF symbol table for GDB 2025-09-08 17:22:21 +02:00
tccpp.c Small updates 2025-12-17 20:22:08 +01:00
tccrun.c Move -run -nostdlib code to lib directory 2025-12-15 14:45:11 +01:00
tcctok.h Add bound check support for alloca on all targets 2025-11-29 07:54:28 +01:00
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 Move -run -nostdlib code to lib directory 2025-12-15 14:45:11 +01:00
x86_64-link.c Relocation updates 2025-12-23 06:46:22 +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 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.