Linux-kernel mailing list archive 2000-32,: Re: [PATCH] Undefined symbols in 2.4.0-test6pre[12]

# Re: [PATCH] Undefined symbols in 2.4.0-test6pre[12]

John Silva (jps@aerizen.com)
Mon, 07 Aug 2000 02:28:08 -0700

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This works much better. There's a race between the genksyms rule and the
modversions rule where the modversions dependencies are processed before
genksyms finishes.

--- linux/Rules.make.orig Mon Aug 7 01:32:11 2000
+++ linux/Rules.make Mon Aug 7 02:22:05 2000
@@ -197,14 +197,14 @@
endif

$(MODINCL)/%.ver: %.c
- @if [ ! -r $(MODINCL)/$*.stamp -o $(MODINCL)/$*.stamp -ot $< ]; then \
+ @(if [ ! -r $(MODINCL)/$*.stamp -o $(MODINCL)/$*.stamp -ot $< ]; then \

echo '$(CC) $(CFLAGS) -E -D__GENKSYMS__ $<'; \
echo '| $(GENKSYMS) $(genksyms_smp_prefix) -k
$(VERSION).$(PATCHLEVEL).$(SUBLEVEL) > $@.tmp'; \
$(CC) $(CFLAGS) -E -D__GENKSYMS__ $< \
| $(GENKSYMS) $(genksyms_smp_prefix) -k
$(VERSION).$(PATCHLEVEL).$(SUBLEVEL) > $@.tmp; \
if [ -r $@ ] && cmp -s $@ $@.tmp; then echo $@ is unchanged; rm
-f $@.tmp; \
else echo mv $@.tmp $@; mv -f $@.tmp $@; fi; \
- fi; touch $(MODINCL)/$*.stamp
+ fi; touch $(MODINCL)/$*.stamp; )

$(addprefix $(MODINCL)/,$(SYMTAB_OBJS:.o=.ver)):
$(TOPDIR)/include/linux/autoconf.h

    --

    John Silva wrote:

    > This seems to be due to missing #includes in linux/modversions.h.  Problem
    > occurs on test6 pre1-6.
    >
    > It seems that the make process does not always include the .ver files from
    > the last directory which produced them.
    >
    > The following patch seems to correct the problem.  Can anyone explain why
    > this works?
    >
    > --- linux/Rules.make.orig       Mon Aug  7 01:32:11 2000
    > +++ linux/Rules.make    Mon Aug  7 01:28:18 2000
    > @@ -220,7 +220,7 @@
    >           echo "#endif"; \
    >         ) > $@
    >
    > -dep fastdep: $(TOPDIR)/include/linux/modversions.h
    > +dep fastdep: dummy $(TOPDIR)/include/linux/modversions.h
    >
    >  endif # SYMTAB_OBJS
    >
    > --
    >
    > John Silva wrote:
    >
    > > I've been getting errors from depmod when booting 2.4.0-test6pre[12]
    > > with modules.
    > > 2.4.0-test5 builds and runs fine with the same .config.
    > >
    > > Is there something specific I can look for to resolve this?  I can see
    > > no apparent changes in
    > > the test6pre patches to cause this.
    > >
    > > Errors and config follow.
    > >
    > > depmod: *** Unresolved symbols in
    > > /lib/modules/2.4.0-test6_5/kernel/drivers/block/loop.o
    > > depmod:         schedule
    > > depmod: *** Unresolved symbols in
    > > /lib/modules/2.4.0-test6_5/kernel/drivers/block/cpqarray.o
    > > depmod:         __io_virt_debug
    > > depmod:         __generic_copy_from_user
    > > depmod:         schedule
    > > depmod:         iounmap
    > > depmod:         __ioremap
    > > depmod:         __const_udelay
    > > depmod:         __generic_copy_to_user
    > > depmod: *** Unresolved symbols in
    > > /lib/modules/2.4.0-test6_5/kernel/drivers/char/cpia.o
    > > depmod:         schedule
    > > depmod:         __const_udelay
    > > depmod:         __generic_copy_to_user
    > > depmod: *** Unresolved symbols in
    > > /lib/modules/2.4.0-test6_5/kernel/drivers/char/i2c-old.o
    > > depmod:         __udelay
    > > depmod: *** Unresolved symbols in
    > > /lib/modules/2.4.0-test6_5/kernel/drivers/char/bw-qcam.o
    > > depmod:         schedule
    > >
    >
    > <body removed>
    >
    > >
    > > -
    > > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    > > the body of a message to majordomo@vger.rutgers.edu
    > > Please read the FAQ at http://www.tux.org/lkml/
    >
    > -
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- Next message: Mikael Pettersson: "Re: Undefined symbols in 2.4.0-test6pre[12]"
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- Maybe in reply to: John Silva: "[PATCH] Undefined symbols in 2.4.0-test6pre[12]"