LKM trouble with compile stdint.h

dzaku · 10-20-2014, 07:12 AM

Hi all :")

i have trouble

Code:

usr/lib/gcc/arm-linux-gnueabihf/4.7/include/stdint.h:3:26: error: no include path in which to search for stdint.h

I try write LKM with <bcm2835.h> (http://www.airspayce.com/mikem/bcm28...8h_source.html)

my make file is

Code:

obj-m :=  gpio.o
LIBS = -lbcm2835 -lrt
DEPS=bcm2835.h
all:
        make -C /lib/modules/3.12-1-rpi/build  M=/home/pi/module modules

my example code

Code:

#include <linux/init.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <bcm2835.h>



MODULE_LICENSE("Dual BSD/GPL");

static int hello_init(void) {
  printk("<1> Hello world!\n");
  return 0;
}

static void hello_exit(void) {
  printk("<1> Bye, cruel world\n");
}

module_init(hello_init);
module_exit(hello_exit);

i read somwhere kernel modules, and thus have no access to glibc (or its headers).

Code:

make -C /lib/modules/3.12-1-rpi/build  M=/home/pi/module modules
make[1]: WejÅcie do katalogu '/usr/src/linux-headers-3.12-1-rpi'
Makefile:10: *** mixed implicit and normal rules: deprecated syntax
  CC [M]  /home/pi/module/gpio.o
/home/pi/module/gpio.c:4:21: fatal error: bcm2835.h: Nie ma takiego pliku ani katalogu
compilation terminated.
/usr/src/linux-headers-3.12-1-common/scripts/Makefile.build:314: polecenia dla obiektu '/home/pi/module/gpio.o' nie powiodÅy siÄ
make[4]: *** [/home/pi/module/gpio.o] BÅÄd 1
/usr/src/linux-headers-3.12-1-common/Makefile:1245: polecenia dla obiektu '_module_/home/pi/module' nie powiodÅy siÄ
make[3]: *** [_module_/home/pi/module] BÅÄd 2
Makefile:130: polecenia dla obiektu 'sub-make' nie powiodÅy siÄ
make[2]: *** [sub-make] BÅÄd 2
Makefile:8: polecenia dla obiektu 'all' nie powiodÅy siÄ
make[1]: *** [all] BÅÄd 2
make[1]: Opuszczenie katalogu '/usr/src/linux-headers-3.12-1-rpi'
Makefile:5: polecenia dla obiektu 'all' nie powiodÅy siÄ
make: *** [all] BÅÄd 2

Help?

knudfl · 10-20-2014, 07:38 AM

A line with "extra INCLUDES" is actually allowed in the Makefile.
Example :
EXTRA_CFLAGS += -I/usr/lib/gcc/arm-linux-gnueabihf/4.7/include/

Code:

obj-m :=  gpio.o
LIBS = -lbcm2835 -lrt
DEPS=bcm2835.h

EXTRA_CFLAGS += -I/usr/lib/gcc/arm-linux-gnueabihf/4.7/include/
all:
        make -C /lib/modules/3.12-1-rpi/build  M=/home/pi/module modules

jeremy · 10-20-2014, 10:53 AM

Please post your thread in only one forum. Posting a single thread in the most relevant forum will make it easier for members to help you and will keep the discussion in one place. This thread is being closed because it is a duplicate.

--jeremy