Date: Wed, 14 Jun 2000 00:26:27 -0400 From: "Matthew Emmerton" <matt@gsicomp.on.ca> To: "Mark Newton" <newton@internode.com.au> Cc: <freebsd-hackers@FreeBSD.ORG> Subject: SVR4 Emulation and SCO OpenServer 5 Message-ID: <008b01bfd5b8$b5e3fee0$1200a8c0@matt>
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This is a multi-part message in MIME format. ------=_NextPart_000_0088_01BFD597.2DED2F00 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable According to the lxrun (Linux Emulator for SCO) documentation and the = Debian ibcs2/svr3 emulator package, OpenServer 5 is SVR3 (with extension = for symbolic links and a few other goodies.) SCO documentation backs up the SVR3 lineage for OSR5, and verifies that = UnixWare 2 and 7 are SVR4 and SVR5, respectively. The SVR3 heritage would explain why a few test programs that I wrote = performing simple system calls (exec, fork, chdir, etc) fail under the = SVR4 emulator, because they're trying to execute syscall 40 which is = undefined in SVR4 -- but refers to the xenix call gate under ibcs2/svr3. If this is indeed the case, the ibcs2 code will need to modified to = support ELF executables so that SCO OpenServer 5 binaries can be run = under the ibcs2/svr3 emulator, with appropriate changes being made to = allow the SCO extensions. -- Matthew Emmerton GSI Computer Services +1 (800) 217-5409 (Canada) ------=_NextPart_000_0088_01BFD597.2DED2F00 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META content=3D"text/html; charset=3Diso-8859-1" = http-equiv=3DContent-Type> <META content=3D"MSHTML 5.00.2919.6307" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT face=3DArial size=3D2>According to the lxrun (Linux Emulator = for SCO)=20 documentation and the Debian ibcs2/svr3 emulator package, OpenServer 5 = is SVR3=20 (with extension for symbolic links and a few other = goodies.)</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>SCO documentation backs up the = SVR3 lineage=20 for OSR5, and verifies that UnixWare 2 and 7 are SVR4 and SVR5,=20 respectively.</FONT></DIV> <DIV> </DIV> <DIV><FONT face=3DArial size=3D2>The SVR3 heritage would explain why a = few test=20 programs that I wrote performing simple system calls (exec, fork, chdir, = etc)=20 fail under the SVR4 emulator, because they're trying to execute syscall = 40 which=20 is undefined in SVR4 -- but refers to the xenix call gate under=20 ibcs2/svr3.</FONT></DIV> <DIV> </DIV> <DIV><FONT face=3DArial size=3D2>If this is indeed the case, the ibcs2 = code will=20 need to modified to support ELF executables so that SCO OpenServer 5 = binaries=20 can be run under the ibcs2/svr3 emulator, with appropriate changes being = made to=20 allow the SCO extensions.</FONT></DIV> <DIV> </DIV> <DIV><FONT face=3DArial size=3D2>--<BR>Matthew Emmerton<BR>GSI Computer=20 Services<BR>+1 (800) 217-5409 (Canada)</FONT></DIV> <DIV> </DIV></BODY></HTML> ------=_NextPart_000_0088_01BFD597.2DED2F00-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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