| Commit message (Collapse) | Author | Age | Files | Lines |
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__clear_cache is defined in lib-arm64.c with a single call to
__arm64_clear_cache, which is the real built-in function and is
turned into inline assembler by gen_clear_cache in arm64-gen.c
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Implementation is mostly shared with __builtin_frame_address.
It seems to work on arm64, i386 and x86_64. It may need to be
adapted for other targets.
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A test program:
/* result of the new version inroduced in 4ad186c5ef61: t2a = 44100312 */
#include<stdio.h>
int main() {
int t1 = 176401255;
float f = 0.25f;
int t2a = (int)(t1 * f); // must be 44100313
int t2b = (int)(t1 * (float)0.25f);
printf("t2a=%d t2b=%d \n",t2a,t2b);
return 0;
}
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Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
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This makes TCCs assembler understand the '.hidden symbol' directive
(and emits a STV_HIDDEN ELF symbol then).
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This adds parsing of (GCC compatible) visibility attribute
in order to mark selected global symbols as hidden. The generated
.o files contain hidden symbols already, the TCC linker doesn't
yet do the right thing.
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For program manipulating argv or arge as pointer with construct such as:
(while *argv++) {
do_something_with_argv;
}
it is necessary to have argv and arge inside a region. This patch create
regions argv and arge) if main is declared with those parameters.
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Variants __fixsfdi/__fixxfdi are not needed for now because
the value is converted to double always.
Also:
- remove __tcc_fpinit for unix as it seems redundant by the
__setfpucw call in the startup code
- avoid reference to s->runtime_main in cross compilers
- configure: fix --with-libgcc help
- tcctok.h: cleanup
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TLS support in tinyCC is absolutely not ready:
- segment register not select in load and store
- no relocation added for computing offset of per-thread symbol
- no support for TLS-specific relocations
- no program header added as per Drepper document about TLS
This reverts commit 1c4afd13501f07a673aed5f130166f2ee0f30927.
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- 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
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tcctest1-3 fail, but this appears to be due to bugs in GCC rather than TCC
(from manual inspection of the output).
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This reverts commit af26ac56bfc584b70e20158e67f7035024076ec8.
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TOK_alloca is now available on x86-64 so make put definition of
TOK_alloca outside the BCHECK conditional macro definition but test if
arch is i386 or x86-64. This makes C99 VLA works (understand compile) on
x86-64.
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- add __builtin_va_arg_types to check how arguments were passed
- move most code of stdarg into libtcc1.c
- remove __builtin_malloc and __builtin_free
- add a test case based on the bug report
(http://www.mail-archive.com/tinycc-devel@nongnu.org/msg03036.html)
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tcc is now able to compile many asm files generated by gcc
--
By by ... Detlef
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--
By by ... Detlef
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--
By by ... Detlef
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Some patches, to allow tcc to compile asm sources generated by gcc
and help tcc with the autoconf stuff used in Wine
( http://source.winehq.org/git/wine.git/ )
--
By by ... Detlef
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--
By by ... Detlef
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exception handler borrowed from k1w1. Thanks.
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Also, disable 16bit support for now as it causes bugs
in 32bit mode. #define I386_ASM_16 if you want it.
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(Because GNU's alloca.h unconditionally #undef's alloca)
Also, remove gcc specific sections in headers. and
instead change tests such that gcc does not use them.
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We need malloc and free to implement va_start and va_end.
Since malloc and free may be replaced by #define, we add __builtin_malloc and __builtin_free.
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Adding the GCC extension __builtin_frame_address(). We support only zero as the argument for now.
With this functionality, we can implement GCC compatible stdarg by macros in x86-64.
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Yesterday I felt the urge to change a few things in TinyCC.
This is the first and biggest change of all of them.
- use __aeabi_*divmod functions in ARM EABI to make binaries depend
solely on standardized library functions
- refactor ARM floating point <-> integer conversion a bit
- rename long long->float and shift library functions to correspond to
the names used by GCC
- compile more tokens conditionally to reduce the size of TinyCC
The intention is primarily to allow users of the ARM target to use
libgcc (which is usually available as a shared library) instead of
libtcc1 (which can't be compiled for ARM due to lack of an inline
assembler).
Changing the EABI target to use the divmod functions in theory allows
to use it without libtcc1 on any (not necessarily GCC based) ARM EABI
system.
Daniel
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