port-amd64/43833: SVR$ compat support missing for amd64

[Wolfgang.Stukenbrock%nagler-company.com@localhost]

>Number:         43833
>Category:       port-amd64
>Synopsis:       SVR$ compat support missing for amd64
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    port-amd64-maintainer
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Fri Sep 03 11:45:01 +0000 2010
>Originator:     W. Stukenbrock
>Release:        NetBSD 5.0.2
>Organization:
Dr. Nagler & Company GmbH
        
>Environment:
        
        
System: NetBSD s051 5.0.2 NetBSD 5.0.2 (NSW-S051) #2: Thu Aug 12 18:30:48 CEST 
2010 wgstuken@s051:/usr/src/sys/arch/amd64/compile/NSW-S051 amd64
Architecture: x86_64
Machine: amd64
>Description:
        There is still no SVR4 compat support for this architecture.

        It would be very niche to have that in order to run Solaris X86 
binaries on a NetBSD system.

        My concrete problem is, that the JRE for linux (64 and 32) bit will not 
work reliable in the
        linux or linux32 emulations. There seems to be a timing problem during 
startup of the engine,
        so that it will crash most times. If the machine-code-compiler is 
deactivated on the command line
        for the java program, the JRE comes up most times - still not all the 
times.
        I simply hope that JRE would run much more stable on Solaris as it does 
on any Linux and that
        it would work in the emulation too.
        At the moment it is impossible to run a JRE on a NetBSD-5.0.2-amd64 
system in a reliable way.

        A quick-try from my side by just enabling the SVR4 compat in an amd64 
kernel shows, that
        (at least) some lines in files.amd64 are missing (see below) and that 
the machine dependen headerfiles
        svr4_machdep.h and svr4_32_machdep.h must be written.

        "missing" lines in files.amd64:
# SVR4 binary compatibility (COMPAT_SVR4)
include "compat/svr4/files.svr4"  
# file    arch/i386/i386/svr4_machdep.c           compat_svr4
# file    arch/i386/i386/svr4_sigcode.S           compat_svr4
# file    arch/i386/i386/svr4_syscall.c           compat_svr4

# SVR4 binary compatibility (COMPAT_SVR4_32)
include "compat/svr4_32/files.svr4_32"  
# file    arch/i386/i386/svr4_machdep.c           compat_svr4_32
# file    arch/i386/i386/svr4_sigcode.S           compat_svr4_32
# file    arch/i386/i386/svr4_syscall.c           compat_svr4_32
        END of missing lines

        Accedently my knowledge about the stack-frame differences of 32 and 64 
bit Intel-CPU's is nearly zero.
        So I cannot guess a valid svr4_*machdep.h file and try if the rest of 
the emulation is already working.

>How-To-Repeat:
        not relevant
>Fix:
        

>Unformatted: