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Michael Matz fab8787b23 macos: Fix GOT access to local defined symbols
if a GOT slot is required (due to codegen, indicated by
presence of some relocation types), then it needs to contain
the address of the wanted symbol, also when it's local and defined,
i.e. not overridable.  For simplicity we use a GOT slot for that as
well (other storage would require rewriting relocs and symbols,
as resolving of GOT relocs is hardwired to be based on s1->got).
But that means we need to fill in its indirect symbol mapping slot as
well, for which Mach-O provides a mean to say "not symbol based,
resolved locally".  So this fixes this testcase:

static int loc;
int _start(void)
{
  loc = 42;
  return loc - 42;
}

(where our codegen currently uses a GOT-based access for the write
by accident)
2020-06-20 22:12:02 +02:00
examples makefile: unify cross with native builds 2017-02-25 12:51:04 +01:00
include tccpp.c: compile 'tcc_predefs' from string 2020-06-17 18:01:45 +02:00
lib macos: Add system include dir for building libs 2020-06-20 22:09:17 +02:00
tests macos: Use SDK path for headers 2020-06-20 22:09:21 +02:00
win32 win32/include/math.h: rint/trunc: pop fp stack 2020-04-11 21:45:57 +02:00
.gitignore OSX: make libtcc.dylib 2020-03-21 23:57:00 +08:00
arm64-gen.c Add vla bound support for arm,arm64 and riscv64 2020-06-17 11:24:17 +02:00
arm64-link.c Add bound checking to arm, arm64 and riscv64 2020-06-16 07:39:48 +02:00
arm-asm.c allow libtcc states to be used concurrently 2019-12-11 02:36:19 +01:00
arm-gen.c Add vla bound support for arm,arm64 and riscv64 2020-06-17 11:24:17 +02:00
arm-link.c Add bound checking to arm, arm64 and riscv64 2020-06-16 07:39:48 +02:00
c67-gen.c tccgen.c: cleanup debug support 2020-05-11 11:41:56 +02:00
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 macos: detect clang also when called as gcc 2020-06-20 22:09:21 +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 Add bound checking to arm, arm64 and riscv64 2020-06-16 07:39:48 +02:00
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 for_each_element for all; add tcc_exit_state 2020-06-20 22:11:57 +02:00
libtcc.h Add error_func and error_opaque getters to libtcc 2019-10-14 09:36:14 +02:00
Makefile macos: First cut at generating Mach-O executables 2020-06-20 22:09:21 +02:00
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-asm.c Add bound checking to arm, arm64 and riscv64 2020-06-16 07:39:48 +02:00
riscv64-gen.c Add vla bound support for arm,arm64 and riscv64 2020-06-17 11:24:17 +02:00
riscv64-link.c Add bound checking to arm, arm64 and riscv64 2020-06-16 07:39:48 +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 Add bound checking to arm, arm64 and riscv64 2020-06-16 07:39:48 +02:00
tcc.c tcc --help -v: cleanup 2020-06-17 17:41:46 +02:00
tcc.h for_each_element for all; add tcc_exit_state 2020-06-20 22:11:57 +02:00
tccasm.c Fix some printf like functions 2020-05-05 09:00:24 +02:00
tcccoff.c allow libtcc states to be used concurrently 2019-12-11 02:36:19 +01:00
tccelf.c for_each_element for all; add tcc_exit_state 2020-06-20 22:11:57 +02:00
tccgen.c macos: First cut at generating Mach-O executables 2020-06-20 22:09:21 +02:00
tcclib.h Revert all of my changes to directories & codingstyle. 2015-07-29 16:57:12 -04:00
tccmacho.c macos: Fix GOT access to local defined symbols 2020-06-20 22:12:02 +02:00
tccpe.c tcc -MD: drop system includes and duplicates 2020-06-17 18:01:40 +02:00
tccpp.c Fake __has_include handling 2020-06-20 22:09:21 +02:00
tccrun.c macos: make Mach-O somewhat ELF_OBJ_ONLY 2020-06-20 22:09:21 +02:00
tcctok.h Fake __has_include handling 2020-06-20 22:09:21 +02:00
tcctools.c tcc -MD: drop system includes and duplicates 2020-06-17 18:01:40 +02:00
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 Add bound checking to arm, arm64 and riscv64 2020-06-16 07:39:48 +02:00
x86_64-link.c macos: make Mach-O somewhat ELF_OBJ_ONLY 2020-06-20 22:09:21 +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 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.