Hi Don,
I copied the System.map to my 7260 and ran:
depmod -a -F System.map
I got a lot of "Unresolved symbols in /lib/modules/2.4.26-ts11/..."
I looked into the directory and this files are already there..
I read that depmod tells about dependency issues but, I do not understand why
there is a dependency issue if I am writing a module that does not use other
modules.
is there a way for me to somehow link this dependency problems?
Thank you for your help
Regards
Omar
--- In Don Tucker <> wrote:
>
> Did you run depmod? I copy the System.map that was generated in the
> source directory of the kernel after the build over to the TS-7260, and
> then after all of the modules have been copied over onto the TS-7260, I
> run "depmod -a -F System.map" there.
>
> Don
>
> On 1/31/2011 3:16 PM, omarcillo1 wrote:
> >
> > Hi everyone,
> >
> > I have been trying to compile a module to tun on my TS7260, I am using
> > the crosscompiler on cygwin, the code is very simple
> >
> > #define MODULE
> > #include <linux/module.h>
> >
> > int init_module(void) { printk("<1>Hello, world\n"); return 0; }
> > void cleanup_module(void) { printk("<1>Goodbye cruel world\n"); }
> >
> > I downloaded the crosscompiler, the kernel source code. using the
> > makefile of the kernel source I wrote a makefile to compile this module:
> >
> >
> > VERSION = 2
> > PATCHLEVEL = 4
> > SUBLEVEL = 26
> > EXTRAVERSION =-ts11
> >
> > KERNELRELEASE=$(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
> >
> > ARCH := arm
> > KERNELPATH=kernel-$(shell echo $(KERNELRELEASE) | sed -e "s/-//g")
> >
> > CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
> > else if [ -x /bin/bash ]; then echo /bin/bash; \
> > else echo sh; fi ; fi)
> > TOPDIR := $(shell /bin/pwd)
> >
> > HPATH = $(TOPDIR)/include
> > FINDHPATH = $(HPATH)/asm $(HPATH)/linux $(HPATH)/scsi $(HPATH)/net
> > $(HPATH)/math-emu
> >
> > HOSTCC = gcc
> > HOSTCFLAGS = -Wall -Wstrict-prototypes -Os -fomit-frame-pointer
> > CROSS_COMPILE = $(shell cd
> > /opt/crosstool/gcc-3.3.4-glibc-2.3.2/arm-unknown-linux-gnu/bin &&
> > pwd)/arm-unknown-linux-gnu-
> >
> > AS = $(CROSS_COMPILE)as
> > LD = $(CROSS_COMPILE)ld
> > CC = $(CROSS_COMPILE)gcc
> > CPP = $(CC) -E
> > AR = $(CROSS_COMPILE)ar
> > NM = $(CROSS_COMPILE)nm
> > STRIP = $(CROSS_COMPILE)strip
> > OBJCOPY = $(CROSS_COMPILE)objcopy
> > OBJDUMP = $(CROSS_COMPILE)objdump
> > MAKEFILES = $(TOPDIR)/.config
> > GENKSYMS = /sbin/genksyms
> > DEPMOD = /sbin/depmod
> > MODFLAGS = -DMODULE
> > CFLAGS_KERNEL =
> > PERL = perl
> > AWK = awk
> > RPM := $(shell if [ -x "/usr/bin/rpmbuild" ]; then echo rpmbuild; \
> > else echo rpm; fi)
> >
> > export VERSION PATCHLEVEL SUBLEVEL EXTRAVERSION KERNELRELEASE ARCH \
> > CONFIG_SHELL TOPDIR HPATH HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC \
> > CPP AR NM STRIP OBJCOPY OBJDUMP MAKE MAKEFILES GENKSYMS MODFLAGS PERL AWK
> > # here is the module I am compiling
> > all: hello.o
> >
> > ifeq (.config,$(wildcard .config))
> > include .config
> > ifeq (.depend,$(wildcard .depend))
> > include .depend
> > do-it-all: Version vmlinux
> > else
> > CONFIGURATION = depend
> > do-it-all: depend
> > endif
> > else
> > CONFIGURATION = config
> > do-it-all: config
> > endif
> >
> > MODLIB := $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
> > export MODLIB
> >
> > CPPFLAGS := -D__KERNEL__ -I$(HPATH)
> >
> > CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes -Wno-trigraphs -O2 \
> > -fno-strict-aliasing -fno-common
> > ifndef CONFIG_FRAME_POINTER
> > CFLAGS += -fomit-frame-pointer
> > endif
> > AFLAGS := -D__ASSEMBLY__ $(CPPFLAGS)
> >
> > export ROOT_DEV = CURRENT
> >
> > export SVGA_MODE = -DSVGA_MODE=NORMAL_VGA
> >
> > CORE_FILES =hello.o
> >
> > clean:
> >
> > It compiles no problem when I type
> >
> > file hello.o I got :
> > hello.o ELF 32-bit LSB relocatable, ARM, version 1, not stripped
> >
> > I transferred hello.o to the TS7260 and I said:
> > insmod: kernel-module version mismatch
> > ./hello.o was compile fro kernel version
> > while this kernel is version 2.4.26-ts11
> >
> > I read that you have to compile the kernel first so I get the version
> > .h file but after doing that I got the same problem..
> >
> > I am missing a configuration step..
> >
> > Regards
> > Omar
> >
> >
>
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