[PATCH] winegcc - do not create .exe.so

Charles Davis cdavis at mymail.mines.edu
Sun Mar 20 23:10:42 CDT 2011

On 3/20/11 9:31 PM, Ben Klein wrote:
> On 21 March 2011 12:26, Charles Davis <cdavis at mymail.mines.edu> wrote:
>> Also, as near as I can tell, this will only work on x86 Linux. It won't
>> work anywhere else (e.g. Mac OS X, FreeBSD, Solaris, etc.). This is
>> because the 'start' code invokes execve(2) using the interrupt 80h
>> interface. Even if other systems use int 80h for their syscall vector
>> (Mac OS does, at least for Unix syscalls), the syscall numbers usually
>> aren't the same across different platforms.
> Does this also mean it will fail to work on amd64/ia64 systems?
For 32-bit (x86) code running on an x86-64/IA64 system, it will work.
For 64-bit code, no, it won't work. In fact, x86-64 and IA64 kernels
keep the old int 80h interface around solely for the benefit of old
32-bit programs (like old versions of Wine, before Maarten Lankhorst and
AJ fixed it) that expect it to be there.

In fact, even if 64-bit code supported the int 80h interface, it still
wouldn't work, because even across different architectures on Linux, the
syscall numbers are different.


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