Greg Earle wrote:
> On Jan 8, 2005, at 9:51 PM, sigsegv@rambler.ru wrote:
> 
>> Greetings, I'm struggling to get 32-bit binaries working with 64-bit 
>> netbsd-2.0 kernel. I unpacked 32-bit base.tgz set and copied lib, 
>> libexec into /emul/netbsd32, usr/lib usr/libexec into /emul/netbsd32/usr
>>
>> From base.tgz 32-bit binaries under bin work fine, but almost any 
>> binary under usr/bin gives:
>>
>> Syntax error: "(" unexpected
>>
>> Am I missing something?
> 
> 
> They are not being recognized as binary executables - the
> system thinks they are shell scripts.
> 
> I would say to use "ldd" and "ktrace" to see what's happening,
> but you do not say whether you are talking about binaries in
> /usr/bin or /emul/netbsd32/usr/bin.  If the latter, then
> use "/usr/bin/ldd" and "/usr/bin/ktrace" to see what the
> system thinks those binaries are (ldd), and where it goes to
> look for things (shared libraries, etc.) when it runs (ktrace).
> 
>     - Greg
> 
> 

Well just to make sure I wasn't missing any shared libs, i copied the 
entire distribution for sparc into /usr/pkg/emul/netbsd32 and set up 
/emul to be a symlink to /usr/pkg/emul

Still, I hit the same problem, binaries under /emul/netbsd32/bin execute 
OK, but the ones under /emul/netbsd32/usr/bin don't. Below are the 
traces for two sample executables (both are 32-bit dynamically linked 
sparc executables), seems to be that for one executable the OS knows how 
to use 32-bit emulation, but for the other one it doesn't. I don't 
really know what's going on the kernel level, so any help/suggestions 
would be much appreciated :-)

This is what I get from executing /emul/netbsd32/bin/date:

Sun Jan  9 12:19:58 UTC 2005
    360 ktruss   emul(netbsd)
    360 ktruss   fktrace                            = 0
    360 date     emul(netbsd32)
    360 date     netbsd32_execve("/emul/netbsd32/bin/date", 
0xffffffffffffd9e0, 0xffffffffffffd9f0) JUSTRETURN
    360 date     netbsd32_mmap(0, 0x8000, 0x3, 0x1002, 0, 0, 0, 0) = 
0x40026000
    360 date     netbsd32_open("/emul/netbsd32/etc/ld.so.conf", 0, 0) = 3
    360 date     netbsd32___fstat13(0x3, 0xffffd930) = 0, 4294957360
    360 date     netbsd32_mmap(0, 0x58, 0x1, 0x1, 0, 0, 0, 0) = 0x40050000
    360 date     netbsd32_close(0x3)

...

360 date     netbsd32_close(0x3)                = 0, 8589914480
    360 date     netbsd32___fstat13(0x1, 0xffffd320) = 0, 4294955808
    360 date     netbsd32_break(0x2a000)            = 0
    360 date     netbsd32_write(0x1, 0x28000, 0x1d) = 29, 163840
        "Sun Jan  9 12:19:58 UTC 2005\n"
    360 date     netbsd32_exit(0)


This is what I get from executing /emul/netbsd32/usr/bin/id:

  754 ktruss   emul(netbsd)
    754 ktruss   fktrace                            = 0
    754 ktruss   execve("/emul/netbsd32/usr/bin/id", 0xffffffffffffd9e0, 
0xffffffffffffd9f0) Err#8 ENOEXEC
    754 sh       emul(netbsd)
    754 sh       execve("/bin/sh", 0xffffffffffffd3a0, 
0xffffffffffffd9f0) JUSTRETURN
    754 sh       mmap(0, 0x8000, 0x3, 0x1002, 0xffffffffffffffff, 0, 0) 
= 0x40222000
    754 sh       open("/etc/ld.so.conf", 0, 0x7f7f7f7f7f7f7f7f) Err#2 ENOENT
    754 sh       open("/lib/libedit.so.2", 0, 0x7f7f7f7f7f7f7f7f) = 3

...

754 sh       break(0x22c000)                    = 0, 1171456
    754 sh       write(0x2, 0x22a000, 0x1e)         = 30, 2269184
        "/emul/netbsd32/usr/bin/id: 1: "
    754 sh       write(0x2, 0x22a000, 0x1d)         = 29, 2269184
        "Syntax error: "(" unexpected\n"
    754 sh       exit(0x2)