On Linux 32: sizeof(long)=32 == sizeof(void *)=32
on Linux 64: sizeof(long)=64 == sizeof(void *)=64
on Windows 64: sizeof(long)=32 != sizeof(void *)=64
The following program (errno.c) reports errno=2 when run
using "tcc -run errno.c"
#include <errno.h>
#include <stdio.h>
int main(void) { printf("errno=%d\n", errno); return 0; }
A test program (must be compiled by the above version of the tcc):
/* Tickle a bug in TinyC on 64-bit systems:
* the LSB of the top word or ARGP gets set
* for no obvious reason.
*
* Source: a legacy language interpreter which
* has a little stack / stack pointer for arguments.
*
* Output is: 0x8049620 0x10804961c
* Should be: 0x8049620 0x804961c
*/
#include <stdio.h>
#define NARGS 20000
int ARG[NARGS];
int *ARGSPACE = ARG;
int *ARGP = ARG - 1;
main() { printf("%p %p\n", ARGSPACE, ARGP); }
Force to use a NATIVE_DEFINES insteed of the DEFINES for the
native tcc. After this change we have on debian/ubuntu
# ./x86_64-tcc -vv
tcc version 0.9.26 (x86-64, Linux)
install: /usr/local/lib/tcc
crt:
/usr/lib/x86_64-linux-gnu
libraries:
/usr/lib/x86_64-linux-gnu
/usr/lib
/lib/x86_64-linux-gnu
/lib
/usr/local/lib/x86_64-linux-gnu
/usr/local/lib
include:
/usr/local/include/x86_64-linux-gnu
/usr/local/include
/usr/include/x86_64-linux-gnu
/usr/include
/usr/local/lib/tcc/include
elfinterp:
/lib64/ld-linux-x86-64.so.2
Before this change the output was
# ./x86_64-tcc -vv
tcc version 0.9.26 (x86-64, Linux)
install: /usr/local/lib/tcc
crt:
/usr/lib
libraries:
/usr/lib
/lib
/usr/local/lib
include:
/usr/local/include
/usr/include
/usr/local/lib/tcc/include
elfinterp:
/lib64/ld-linux-x86-64.so.2
This change don't fix a cross compilers
The following check in tccgen.c is removed
if (nocode_wanted)
tcc_error("statement expression in global scope");
This check is introduced in commit 5bcc3eed7b and breaks compilation
of the linux 2.4.26 kernel.
int i = i++ causes a segfault because of missing guard. Looking
recursively at all backend functions called from middle end several more
guard appeared to be missing.
i386-tcc.exe is a compiler for i386 Linux. A HOST_OS variable in Makefile is
introduced and used to select a native compiler (which one to name as tcc.exe)
Some structs are passed in registers. When they need more than
one the implementation of __va_arg on x86-64 didn't correctly account
for this. This fixes only the cases where the structs consist of
integer types, as there the register save area is consecutive.
Fixes some tests from 73_arm64.c, but still leaves those failing
that use floating point in the large-but-regpassed structs.
The common code to move a returned structure packed into
registers into memory on the caller side didn't take the
register size into account when allocating local storage,
so sometimes that lead to stack overwrites (e.g. in 73_arm64.c),
on x86_64. This fixes it by generally making gfunc_sret also return
the register size.
__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
More precisely, treat (0 << x) and so on as constant expressions, but
not if const_wanted as we do not want to allow "case (x*0):", ...
Do not optimise (0 / x) and (0 % x) here as x might be zero, though
for an architecture that does not generate an exception for division
by zero the back end might choose to optimise those.
a test program:
struct {
int a[2], b[2];
} cases[] = {
{ ((int)0), (((int)0)) },
((int)0), (((int)0)) /* error: ',' expected (got ")") */
};
int main() { return 0; }
This commit allow to skip ')' in the decl_initializer() and to see ','
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;
}
* Don't use /usr/local/lib/tcc/libtcc1.a for i386 and x86_64
A $(tccdir)/i386 directory was used to install a libtcc1.a
but only when cross compiling. And no x86_64 directory.
* Build/install i386-tcc/x86_64-tcc and not a tcc
* Build/install i386-win-tcc/x86_64-win-tcc and not a i386-win-mingw32-tcc/...
* DEFINES = -DTCC_TARGET_I386... also for i386-tcc and i386-win-tcc
* Make a symlink tcc to the i386-tcc/x86_64-tcc for a "make test"
* Build a $(ARCH) directory with a symlink to the libtcc1.a for a "make test"
* Remove a /usr/local/lib/tcc directory on uninstall
* Remove a /usr/local/share/doc/tcc directory on uninstall
* Remove a $(ARCH) directory on "make clean"
* Remove a *-tcc files on "make clean"
produce a
i386-win-mingw32-tcc
i386-win-tcc
x86_64-win-mingw32-tcc
x86_64-win-tcc
arm-win-mingw32ce-tcc
arm-win-tcc
instead of the
i386-w64-mingw32-tcc
i386-win32-tcc
x86_64-w64-mingw32-tcc
x86_64-win32-tcc
arm-wince-mingw32ce-tcc
arm-win32-tcc
Replacing a *-win32 directory names with a *-win names
because this names are based on the names of the tcc
x86_64-win32-tcc, i386-win32-tcc
seyko