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List: linux-kernel
Subject: Re: [PATCH] Undefined symbols in 2.4.0-test6pre[12]
From: John Silva <jps () aerizen ! com>
Date: 2000-08-07 9:28:08
[Download RAW message or body]
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>
>
> >
> > -
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>
> -
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