Hi,
I am having a strange problem with external module Makefile, with wildcard and patsubst it is giving issue. but without those it is working fine.
See the logs for further info. I serached in google, any idea why this happens. if this is a known issue (or wrong coding) send me a link expalining why this is happening.
I can see wildcard and patsubst used in core KBUILD Makefiles
[root@RHEL5U3-DL580G4 new]# ls
Makefile sdirac1.c sdirac1.h sdirac2.c sdirac2.h sdirac3.c sdirac3.h
[root@RHEL5U3-DL580G4 new]# cat Makefile
obj-m := dirac.o
dirac-objs = $(patsubst %.c,%.ko,$(wildcard , *.c))
#dirac-objs = sdirac1.o sdirac2.o sdirac3.o
KDIR := /lib/modules/$(shell uname -r)/build
all:
echo $(dirac-objs)
make -C $(KDIR) M=`pwd` modules
[root@RHEL5U3-DL580G4 new]# make
echo sdirac1.ko sdirac2.ko sdirac3.ko
sdirac1.ko sdirac2.ko sdirac3.ko
make -C /lib/modules/2.6.18-128.el5PAE/build M=`pwd` modules
make[1]: Entering directory `/usr/src/kernels/2.6.18-128.el5-PAE-i686'
make[2]: *** No rule to make target `/root/Desktop/new/dirac.c', needed by `/root/Desktop/new/dirac.o'. Stop.
make[1]: *** [_module_/root/Desktop/new] Error 2
make[1]: Leaving directory `/usr/src/kernels/2.6.18-128.el5-PAE-i686'
make: *** [all] Error 2
[root@RHEL5U3-DL580G4 new]# vim Makefile
####I changed the Makefile Here ######
[root@RHEL5U3-DL580G4 new]# cat Makefile
obj-m := dirac.o
#dirac-objs = $(patsubst %.c,%.ko,$(wildcard , *.c))
dirac-objs = sdirac1.o sdirac2.o sdirac3.o
KDIR := /lib/modules/$(shell uname -r)/build
all:
echo $(dirac-objs)
make -C $(KDIR) M=`pwd` modules
[root@RHEL5U3-DL580G4 new]# make
echo sdirac1.o sdirac2.o sdirac3.o
sdirac1.o sdirac2.o sdirac3.o
make -C /lib/modules/2.6.18-128.el5PAE/build M=`pwd` modules
make[1]: Entering directory `/usr/src/kernels/2.6.18-128.el5-PAE-i686'
CC [M] /root/Desktop/new/sdirac1.o
CC [M] /root/Desktop/new/sdirac2.o
CC [M] /root/Desktop/new/sdirac3.o
LD [M] /root/Desktop/new/dirac.o
Building modules, stage 2.
MODPOST
CC /root/Desktop/new/dirac.mod.o
LD [M] /root/Desktop/new/dirac.ko
make[1]: Leaving directory `/usr/src/kernels/2.6.18-128.el5-PAE-i686'
[root@RHEL5U3-DL580G4 new]# ls
dirac.ko dirac.mod.o Makefile Module.symvers sdirac1.h sdirac2.c sdirac2.o sdirac3.h
dirac.mod.c dirac.o Module.markers sdirac1.c sdirac1.o sdirac2.h sdirac3.c sdirac3.o
[root@RHEL5U3-DL580G4 new]#
Thanks
Nobin Mathew.
