[Mingw-w64-public] Large file support?
Hi!
I've compiled a Atari ST emulator that can record video. The one I've
compiled the emulator crashes when the recorded video reaches a certain
size and from what I can gather it's because off_t is 32bit, even if the
the compiler is x86_64.
Using built-in specs.
COLLECT_GCC=/opt/cross-mingw-w64/bin/x86_64-w64-mingw32-gcc
COLLECT_LTO_WRAPPER=/opt/cross-mingw-w64/bin/../lib/gcc/x86_64-w64-mingw32/7.3.1/lto-wrapper
Target: x86_64-w64-mingw32
Configured with:
/home/solskogen/mingw-w64-builder/trunk/bin/gcc/configure
--prefix=/home/solskogen/obj/cross-mingw-w64
--libexecdir=/home/solskogen/obj/cross-mingw-w64/lib
--target=x86_64-w64-mingw32 --disable-nls --enable-fully-dynamic-string
--enable-libstdcxx-time=yes --enable-languages=c,c++
--disable-libstdcxx-pch --enable-checking=release --enable-lto
--disable-dw2-exceptions --enable-libgomp --enable-threads=posix
--disable-multilib --with-sysroot=/home/solskogen/obj/cross-mingw-w64
mingw-w64 is from the 5.x branch of mingw-w64.
With the compiler I used I get this with a small program:
sizeof off_t: 4 bytes
While on Linux
sizeof off_t: 8 bytes
solskogen@friend:~/temp$ cat test.c
#include
int main(int argc, char *argv[])
{
printf("sizeof off_t: %lu bytes\n",sizeof(off_t));
return 0;
}
--
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
___
Mingw-w64-public mailing list
Mingw-w64-public@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/mingw-w64-public
Re: [Mingw-w64-public] Large file support?
On 03/06/2018 12:48 PM, Christer Solskogen wrote: > Hi! > > I've compiled a Atari ST emulator that can record video. The one I've > compiled the emulator crashes when the recorded video reaches a certain > size and from what I can gather it's because off_t is 32bit, even if the > the compiler is x86_64. We cannot change the definition of off_t without breaking compatibility, so use off64_t explicitly instead. Or try recompiling with -D_POSIX=1 -D_FILE_OFFSET_BITS=64. signature.asc Description: OpenPGP digital signature -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot___ Mingw-w64-public mailing list Mingw-w64-public@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mingw-w64-public
Re: [Mingw-w64-public] Large file support?
On 06.03.2018 14:13, JonY via Mingw-w64-public wrote: Or try recompiling with -D_POSIX=1 -D_FILE_OFFSET_BITS=64. Thanks, that worked! -- chs -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot ___ Mingw-w64-public mailing list Mingw-w64-public@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mingw-w64-public
Re: [Mingw-w64-public] Large file support?
On 3/6/18, Christer Solskogen wrote: > On 06.03.2018 14:13, JonY via Mingw-w64-public wrote: >> >> Or try recompiling with -D_POSIX=1 -D_FILE_OFFSET_BITS=64. > > Thanks, that worked! Is _FILE_OFFSET_BITS is really tied to _POSIX? IIRC, _POSIX had more side effects which may or may not be wanted (or I may be wrong..) -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot ___ Mingw-w64-public mailing list Mingw-w64-public@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mingw-w64-public
Re: [Mingw-w64-public] Large file support?
On 03/06/2018 02:10 PM, Ozkan Sezer wrote: > On 3/6/18, Christer Solskogen wrote: >> On 06.03.2018 14:13, JonY via Mingw-w64-public wrote: >>> >>> Or try recompiling with -D_POSIX=1 -D_FILE_OFFSET_BITS=64. >> >> Thanks, that worked! > > Is _FILE_OFFSET_BITS is really tied to _POSIX? IIRC, _POSIX had more > side effects which may or may not be wanted (or I may be wrong..) > Just looking into the headers gave that. signature.asc Description: OpenPGP digital signature -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot___ Mingw-w64-public mailing list Mingw-w64-public@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mingw-w64-public
