Bugs item #3077238, was opened at 2010-09-28 15:01
Message generated for change (Comment added) made by gleixner
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Category: Build System
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Wolfgang Schnitker (wschnitker)
Assigned to: Alex Joni (alex_joni)
Summary: comp compiles with errors
Initial Comment:
Building a module out of dualbipod.c from step4linux results in some errors.
On my system I have to change following:
COMP is wrong in this line
ifeq ($(BUILDSYS),kbuild)
modules:
$(MAKE) -C $(KERNELDIR) SUBDIRS=$(shell pwd) CC=$(CC) V=0 -o
$(KERNELDIR)/Module.symvers modules
Error 1: originally there is a $(KDIR)/Module.symvers must be KERNELDIR
Error 2: SUBDIRS needs $(shell pwd) not $('pwd') but this results in nonsense.
After doing this, I still have warnings.
sudo comp --install dualbipod.c
make -C /usr/src/linux-headers-2.6.32-122-rtai SUBDIRS=/tmp/tmp625dVT CC=gcc
V=0 -o /usr/src/linux-headers-2.6.32-122-rtai/Module.symvers modules
make[1]: Betrete Verzeichnis '/usr/src/linux-headers-2.6.32-122-rtai'
CC [M] /tmp/tmp625dVT/dualbipod.o
Building modules, stage 2.
MODPOST 1 modules
WARNING: "hal_init" [/tmp/tmp625dVT/dualbipod.ko] undefined!
WARNING: "hal_exit" [/tmp/tmp625dVT/dualbipod.ko] undefined!
WARNING: "hal_malloc" [/tmp/tmp625dVT/dualbipod.ko] undefined!
WARNING: "hal_param_float_new" [/tmp/tmp625dVT/dualbipod.ko] undefined!
WARNING: "hal_ready" [/tmp/tmp625dVT/dualbipod.ko] undefined!
CC /tmp/tmp625dVT/dualbipod.mod.o
LD [M] /tmp/tmp625dVT/dualbipod.ko
make[1]: Verlasse Verzeichnis '/usr/src/linux-headers-2.6.32-122-rtai'
cp dualbipod.ko /usr/realtime-2.6.32-122-rtai/modules/emc2/
The resulting .ko file is useable and works, but there should be no warnings in
compilation of a emc2 Module.
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Comment By: step4linux (gleixner)
Date: 2010-09-29 09:24
Message:
I think it would be wise to split it.
The first part about makefiles is eventually related to
installation/upgrade procedures for 10.04/2.4
On a fresh 10.04/2.4 installation it appears to work.
The second part (warnings from comp): I have seen the same in 8.04/2.3.
Is that normal behaviour of comp ?
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