Very Computer

# add_drv foo
drvconfig: Driver (foo) failed to attach
Warning: Driver (foo) successfully added to system but failed to attach

I have studied some previous postings on this subject and I am now
convinced that I am running with a 64-bit kernel and that that is why it
didn't work at first. So, just to get _something_ working, I compiled
the sample driver "pio", with the compiler option -xarch=v9. This sample
driver is supposed to be ready for 64 bit. I then renamed it "foo" and
put it in /kernel/drv/sparcv9, and tried add_drv again:

# add_drv foo
/kernel/drv//sparcv9/foo: undefined symbol
/kernel/drv//sparcv9/foo: undefined symbol
WARNING: mod_load: cannot load module 'foo'
drvconfig: Driver (foo) failed to attach
Warning: Driver (foo) successfully added to system but failed to attach

It seems to complain about two undefined symbols, but which ones? If I
refer to a fictional function, such as "foobar", in the source code, I
get the following message:

# add_drv foo
/kernel/drv//sparcv9/foo: undefined symbol
/kernel/drv//sparcv9/foo: undefined symbol
/kernel/drv//sparcv9/foo: undefined symbol foobar
WARNING: mod_load: cannot load module 'foo'
drvconfig: Driver (foo) failed to attach
Warning: Driver (foo) successfully added to system but failed to attach

It seems to me that the missing symbols are nameless and I don't know
what to do to avoid references to them. I compiled the sample driver
"ae" in the same fashion with -xarch=v9, and the same thing happened. To
look at the symbol table I ran the command:

# ld -D symbols,detail -r -o sparc/foo sparc/foo.o

I get a very long list of symbols, but symbols 31 and 32 look
suspicious:

debug: symbol[30]=ddi_soft_state_fini  (global); adding
debug:    entered  0x000000000000 0x000000000000  FUNC GLOB 0   UNDEF       REF_REL_NEED
debug: symbol[31]=  (global); adding
debug:    entered  REG_G2         0x000000000000  REGI GLOB 0   UNDEF       REF_REL_NEED
debug: symbol[32]=  (global); adding
debug:    entered  REG_G3         0x000000000000  REGI GLOB 0   UNDEF       REF_REL_NEED

There seems to bee two global undefined symbols which are needed, but
without a name. What do I do?

--
Roar A. Lauritzsen, M.Sc.                  Tel:     +47 23 23 84 26
Senior Systems Engineer                    Fax:     +47 23 23 84 01
Fast Search & Transfer ASA                 Mobile:  +47 91 16 21 10
P.O.Box 1677 Vika, NO-0120 Oslo, Norway    Home: http://www.fast.no

        -xregs=no%appl

Casper
--
Expressed in this posting are my opinions.  They are in no way related
to opinions held by my employer, Sun Microsystems.
Statements on Sun products included here are not gospel and may
be fiction rather than truth.

Quote:> You need to add the folloing compile time option:

>         -xregs=no%appl

    -xarch=v9 -xregs=no%appl

Otherwise, when you run add_drv, you will get the message:

    drvconfig: Driver failed to attach

--
Roar A. Lauritzsen, M.Sc.                  Tel:     +47 23 23 84 26
Senior Systems Engineer                    Fax:     +47 23 23 84 01
Fast Search & Transfer ASA                 Mobile:  +47 91 16 21 10
P.O.Box 1677 Vika, NO-0120 Oslo, Norway    Home: http://www.fast.no

 SUNWddk/src/drivers/pio/README:

  DRIVER NAME:
        pio -- sample programmed I/O driver

 CAVEATS AND CONSTRAINTS:
        This sample code is written for hypothetical hardware and will not
        run on any platform.                                      ~~~~~~~~
        ~~~~~~~~~~~~~~~~~~~

 pio sample code is written for fiction device. If you want to attach
this driver, should be modify for real hardware.
--
ASADA Kazuhisa / TRUST SYSTEM INC., Osaka, Japan