Package: gcc-mingw-w64-x86-64
Version: 4.9.1-19+14.3
Severity: normal
Dear Maintainer,
the gcc and g++ cross compilers (both i686-w64-mingw32-gcc and
x86_64-w64-mingw32-gcc) handle __attribute__((packed)) wrong.
Source code example:
#include <stdio.h>
struct S
{
bool _b;
unsigned _u;
} __attribute__((packed)) ;
int main(int argc, char **argv)
{
printf("sizeof(S)=%d\n", sizeof(S));
return 0;
}
Compile and run:
g++ -o packed packed.cpp && ./packed
sizeof(S)=5
x86_64-w64-mingw32-g++ -o packed.exe packed.cpp && wine packed.exe
sizeof(S)=8
wheezy cross-compiled .exe binaries also report 5.
By the way:
/usr/lib/gcc/i686-w64-mingw32/4.9-posix/libstdc++-6.dll
/usr/lib/gcc/i686-w64-mingw32/4.9-win32/libstdc++-6.dll
/usr/lib/gcc/x86_64-w64-mingw32/4.9-posix/libstdc++-6.dll
/usr/lib/gcc/x86_64-w64-mingw32/4.9-win32/libstdc++-6.dll
should be chmod +x, since samba is now configured by default to
refuse exec permission of files without x permission,
resulting in confisuing error during exe start.
-- System Information:
Debian Release: 8.1
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.16.0-4-amd64 (SMP w/6 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages gcc-mingw-w64-x86-64 depends on:
ii binutils-mingw-w64-x86-64 2.25-5+5.2
ii gcc-mingw-w64-base 4.9.1-19+14.3
ii libc6 2.19-18
ii libcloog-isl4 0.18.2-1+b2
ii libgmp10 2:6.0.0+dfsg-6
ii libisl10 0.12.2-2
ii libmpc3 1.0.2-1
ii libmpfr4 3.1.2-2
ii mingw-w64-x86-64-dev 3.2.0-2
ii zlib1g 1:1.2.8.dfsg-2+b1
gcc-mingw-w64-x86-64 recommends no packages.
Versions of packages gcc-mingw-w64-x86-64 suggests:
pn gcc-4.9-locales <none>
-- no debconf information
