round and fmin/fmax are relatively commonly used functions but were not
implemented anywhere in the tcc Windows distribution package. Newer mingw(64)
math.h stil doesn't include these implementations.
Add C implementations for these functions and place it as inline functions at
win32/include/tcc/tcc_libm.h - which is already included from math.h .
The code is mostly taken from musl-libc rs-1.0 (MIT) [*],
musl-libc: http://git.musl-libc.org/cgit/musl/tree/src/math?h=rs-1.0
license: http://git.musl-libc.org/cgit/musl/tree/COPYRIGHT?h=rs-1.0
Potential enhancements:
- Check how many useful libm implementations are still missing and consider
adding them (some of them already work via the MS runtime).
- Consider putting libm implementations in an actual libm.a file, or add a dummy
one such that build processes which try to link with libm will not fail.
The asm code cannot currently be used with tcc since tcc doesn't support 't'
constraint.
Use inline C implementation instead, place it win32/include/tcc/tcc_libm.h, and
include it from win32/include/math.h.
Since fpclassify now works, it also fixes few other macros which depend on it.
Implicitly fixed: isfinite, isinf, isnan, isnormal.
The implementations were taken from musl-libc rs-1.0 (MIT license).
musl-libc: http://git.musl-libc.org/cgit/musl/tree/src/math?h=rs-1.0
license: http://git.musl-libc.org/cgit/musl/tree/COPYRIGHT?h=rs-1.0
It was broken due to tcc not able to compile asm with 't' constraint, and it's
still broken because fpclassify on which it now depends has the same issue. Next
commit will fix this.
* Documentation is now in "docs".
* Source code is now in "src".
* Misc. fixes here and there so that everything still works.
I think I got everything in this commit, but I only tested this
on Linux (Make) and Windows (CMake), so I might've messed
something up on other platforms...
just for testing. Is it needed? I'm not a MSYS citizen.
run4flat is a tcc fork by David Mertens that knows how to work with
multiple symbol tables. Excelent work. A good descriptions of the
tcc internals inside a code comments.
A non declared function leads to a seriuos problems. And while
gcc don't turn this warning on lets tcc do it. This warning
can be turned off by -Wno-implicit-function-declaration option.
And autor must explicitly do this if program must be compiled
with this warning off.
- tccgen: error out for cast to void, as in
void foo(void) { return 1; }
This avoids an assertion failure in x86_64-gen.c, also.
also fix tests2/03_struct.c accordingly
- Error: "memory full" - be more specific
- Makefiles: remove circular dependencies, lookup tcctest.c from VPATH
- tcc.h: cleanup lib, include, crt and libgcc search paths"
avoid duplication or trailing slashes with no CONFIG_MULTIARCHDIR
(as from 9382d6f1a0e2d0104a82ed805207d9e742c6b068)
- tcc.h: remove ";{B}" from PE search path
in ce5e12c2f950052d8109b6b7a56d900547705c08 James Lyon wrote:
"... I'm not sure this is the right way to fix this problem."
And the answer is: No, please. (copying libtcc1.a for tests instead)
- win32/build_tcc.bat: do not move away a versioned file
- tccpe.c: avoid conflict with imp_sym->st_value, cleanup
- _parseLibs.bat, _tcc.bat: no instructions for usage, removed.
from commit 642b6d0f50c6b6a842c9239a102fe34d5619e931
- avoid assumption "ret_align == register_size" which is
false for non-arm targets
- rename symbol "sret" to more descriptive "ret_nregs"
This fixes commit dcec8673f21da86ae3dcf1ca3e9498127715b795
Also:
- remove multiple definitions in win32/include/math.h
tcc.c:
process.h:177:20: note: expected 'char * const*' but argument is of type 'char const*const*'
tccpe.c:
Add the possibility to use noname functions by ordinal.
use def file: "AliasName @n"
build-tcc.bat:
1. Enable 32 bits mode on 64 bits OS.
2. build doc.
_parseLibs.bat:
Convenient to use "*.def + *.c" instead of *.a, just use -l*
_tcc.bat:
a practice of _parseLibs.bat
Signed-off-by: YX Hao <lifenjoiner@163.com>
For "tcc -run file.c", I was trying to initialize the FP control
in a function in libtcc1.a (_runmain) before calling main.
Unfortunately that turned out to cause problems with for example
libtcc_test since such usage doesn't necessarily define a 'main'
function.
So for tcc -run we're back to relying on the FP control word
that is set in the startup code of tcc.exe rsp. libtcc.dll.
This fixes part of commit 73faaea227a53e365dd75f1dba7a5071c7b5e541
- Use runtime function for conversion
- Also initialize fp with tcc -run on windows
This fixes a bug where
double x = 1.0;
double y = 1.0000000000000001;
double z = x < y ? 0 : sqrt (x*x - y*y);
caused a bad sqrt because rounding precision for the x < y comparison
was different to the one used within the sqrt function.
This also fixes a bug where
printf("%d, %d", (int)pow(10, 2), (int)pow(10, 2));
would print
100, 99
Unrelated:
win32: document relative include & lib lookup
win32: normalize_slashes: do not mirror silly gcc behavior
This reverts part of commit 8a81f9e1036637e21a47e14fb56bf64133546890
winapi: add missing WINAPI decl. for some functions
This replaces -> use instead:
-----------------------------------
- tcc_set_linker -> tcc_set_options(s, "-Wl,...");
- tcc_set_warning -> tcc_set_options(s, "-W...");
- tcc_enable_debug -> tcc_set_options(s, "-g");
parse_args is moved to libtcc.c (now tcc_parse_args).
Also some cleanups:
- reorder TCCState members
- add some comments here and there
- do not use argv's directly, make string copies
- use const char* in tcc_set_linker
- tccpe: use fd instead of fp
tested with -D MEM_DEBUG: 0 bytes left
tests/Makefile:
- print-search-dirs when 'hello' fails
- split off hello-run
win32/include/_mingw.h:
- fix for compatibility with mingw headers
(While our headers in win32 are from mingw-64 and don't have
the problem)
tiny_libmaker:
- don't use "dangerous" mktemp
Should fix some warnings wrt. access out of array bounds.
tccelf.c: fix "static function unused" warning
x86_64-gen.c: fix "ctype.ref uninitialzed" warning and cleanup
tcc-win32.txt: remove obsolete limitation notes.
Not wise if stddef.h was already included. This is related to commit
3aa26a794e24a298493a2bc9d70fbd9aebf6437a
Instead hack stddef.h to have identical definition and thus
avoid the issue mentionned there.
- remove redunant else branch
- zero-terminate linker_arg
- declare cstr_xxx as PUB_FUNC
(which are functions used in tcc.c but not in the libtcc API.
Useful for a tcc(.exe) that uses the libtcc.(so/dll))
- while at it, export PUB_FUNCs from dll
This reverts commit 16202e054f0385499ec16463b87e23c97dc02328.
Changed win32 build to use ONE_SOURCE just like libtcc.dll
Therefore CString can be used again...
- use {B} to substitute tcc_lih_path (instead of \b)
- expand CONFIG_TCC_CRTPREFIX in CONFIG_TCC_LIBPATHS
which fixes duplicate CONFIG_SYSROOT.
- put default CONFIG_SYSROOT ("") into tcc.h
- remove hack from commit db6fcce78f4d8ea25036dd6643e9fa83d8e52e5a
because $(tccdir)/include is already in sysincludes
- configure: error out for unrecognized options.
- win32/build-tcc.bat: put libtcc into base dir where it will
find lib/include automatically, and build libtcc_test example.
