From: Ara.T.Howard@...
Date: 2004-09-07T23:45:14+09:00
Subject: Re: Ruby/HPUX/syscall problem/bug

On Tue, 7 Sep 2004 tad.bochan@bnpparibas.com wrote:

> Hello, I need a little help please.
> If anyone on the list is running ruby on hpux 11+  with  a ruby
> version later than "ruby 1.8.0 (2003-08-04) [hppa2.0w-hpux11.11]",
> could you please try the following code to see if the problem/bug
> has been fixed in the later version ?.
> TIA.
> Tad.
>
> sysfunc="SYS_mmap"
> lib="/usr/include/sys/scall_define.h"
> scall=open(lib).readlines.grep(/\s#{sysfunc}\s/)[0].split[2].to_i
> puts "#{sysfunc} = #{scall}"
> SYS_mmap          = 71
> PROT_NONE         = 0
> PROT_USER         = 0
> PROT_READ         = 1
> PROT_WRITE        = 2
> MAP_SHARED        = 1
> addr,len,prot,flags,ofs=0,80,PROT_READ, MAP_SHARED,0
> filedes=open("shmfile","a+")
> mmfptr=syscall(SYS_mmap, addr, len, prot, flags, filedes.fileno, ofs)
>
> On my system, this fails with the following error report,
>
>> ruby pntrs.rb
> SYS_mmap = 71
> pntrs.rb:13: [BUG] rb_sys_fail() - errno == 0
> ruby 1.8.0 (2003-08-04) [hppa2.0w-hpux11.11]
>
> Abort(coredump)


i can't help you with the hpux problem - but have you tried to compile guy's
mmap module?  i use it all the time and it's very good - seems like that would
be easier that using syscall...

cheers.

-a
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