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Fixes potential writes past the allocated space with mostly illegal flex array initializers. (60_errors_and_warnings.c :test_var_array) In exchange suspicious precautions such as section_reserve or checks with sec->data_allocated were removed. (There is an hard check 'init_assert()' for now but it's meant to be just temporary) Also, instead of filling holes, always memset(0) structures & arrays on stack. Sometimes more efficient, sometimes isn't. At least we can omit putting null initializers. About array range inititializers: Reparsing tokens has a small problem with sideeffects, for example int c = 0, dd[] = { [0 ... 1] = ++c, [2 ... 3] = ++c }; Also, instead of 'squeeze_multi_relocs()', delete pre-existing relocations in advance. This works even if secondary initializers don't even have relocations, as with [0 ... 7] = &stuff, [4] = NULL Also, in tcc.h: new macro "tcc_internal_error()" |
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examples | ||
include | ||
lib | ||
tests | ||
win32 | ||
.gitignore | ||
arm64-gen.c | ||
arm64-link.c | ||
arm-asm.c | ||
arm-gen.c | ||
arm-link.c | ||
c67-gen.c | ||
c67-link.c | ||
Changelog | ||
CodingStyle | ||
coff.h | ||
configure | ||
conftest.c | ||
COPYING | ||
elf.h | ||
i386-asm.c | ||
i386-asm.h | ||
i386-gen.c | ||
i386-link.c | ||
i386-tok.h | ||
il-gen.c | ||
il-opcodes.h | ||
libtcc.c | ||
libtcc.h | ||
Makefile | ||
README | ||
RELICENSING | ||
riscv64-asm.c | ||
riscv64-gen.c | ||
riscv64-link.c | ||
stab.def | ||
stab.h | ||
tcc-doc.texi | ||
tcc.c | ||
tcc.h | ||
tccasm.c | ||
tcccoff.c | ||
tccelf.c | ||
tccgen.c | ||
tcclib.h | ||
tccmacho.c | ||
tccpe.c | ||
tccpp.c | ||
tccrun.c | ||
tcctok.h | ||
tcctools.c | ||
texi2pod.pl | ||
TODO | ||
USES | ||
VERSION | ||
x86_64-asm.h | ||
x86_64-gen.c | ||
x86_64-link.c |
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.