[Bug 20314] New: wine loader doesn't work on Debian/kFreeBSD

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=20314

           Summary: wine loader doesn't work on Debian/kFreeBSD
           Product: Wine
           Version: 1.1.31
          Platform: PC
               URL: http://www.debian.org/ports/kfreebsd-gnu/
        OS/Version: FreeBSD
            Status: NEW
          Keywords: download, source
          Severity: critical
          Priority: P2
         Component: loader
        AssignedTo: wine-bugs at winehq.org
        ReportedBy: austinenglish at gmail.com


Found out about the debian/FreeBSD port, so I gave it a spin. Wine mostly
compiles, with a couple warnings (I'll send a patch in a bit), but the killer
is loader/preloader.c. It's disabled on FreeBSD normally, by configure.ac:
case $host_cpu in
  *i[[3456789]]86*)
    case $host_os in
      linux* | k*bsd*-gnu)
        AC_SUBST(EXTRA_BINARIES,"wine-preloader") ;;
    esac
    ;;
esac

but the k*bsd*-gnu enables it here. The problem is, preloader.c has some linux
specific stuff:
static inline int wld_prctl( int code, int arg )
{
    int ret;
    __asm__ __volatile__( "pushl %%ebx; movl %2,%%ebx; int $0x80; popl %%ebx"
                          : "=a" (ret) : "0" (SYS_prctl), "r" (code), "c" (arg)
);
    return SYSCALL_RET(ret);
}

The SYS_prctl is Linux specific, see:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=550435

I tried removing the k*bsd*-gnu from configure.ac, but the loader still doesn't
work:
wine: failed to initialize: /usr/local/lib/wine/ntdll.dll.so: failed to map
segment from shared object: Cannot allocate memory

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