I am trying to write a kernel module that will call the getpid()
routine. However, it doesn't seem to be defined in the kernel
headers--though it is defined in /usr/include. I'm using the
following make file for kernel modules:
obj-m += a4.o
all:
make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
clean:
make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
and it keeps flagging getpid() as not defined.
Also, getpid() is supposed to need the following:
#include <sys/types.h>
#include <unistd.h>
but it can't find these header files in the kernel headers.
What's the story? What do I have to do to get this to work?
TIA, Matt
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