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System call table generation script must be run to gener-
ate unistd_32.h and syscall_table.h files. This patch will
have changes which will invokes the script.
This patch will generate unistd_32.h and syscall_table.h
files by the syscall table generation script invoked by
m68k/Makefile and the generated files against the removed
files must be identical.
The generated uapi header file will be included in uapi/-
asm/unistd.h and generated system call table header file
will be included by kernel/syscalltable.S file.
Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
NR_syscalls macro holds the number of system call
exist in m68k architecture. We have to change the
value of NR_syscalls, if we add or delete a system
call.
One of the patch in this patch series has a script
which will generate a uapi header based on syscall-
.tbl file. The syscall.tbl file contains the total
number of system calls information. So we have two
option to update NR_syscalls value.
1. Update NR_syscalls in asm/unistd.h manually by
counting the no.of system calls. No need to up-
date NR_syscalls until we either add a new sys-
tem call or delete existing system call.
2. We can keep this feature it above mentioned sc-
ript, that will count the number of syscalls and
keep it in a generated file. In this case we
don't need to explicitly update NR_syscalls in
asm/unistd.h file.
The 2nd option will be the recommended one. For that,
I added the __NR_syscalls macro in uapi/asm/unistd.h
along with NR_syscalls asm/unistd.h. The macro __NR-
_syscalls also added for making the name convention
same across all architecture. While __NR_syscalls
isn't strictly part of the uapi, having it as part
of the generated header to simplifies the implement-
ation. We also need to enclose this macro with #ifdef
__KERNEL__ to avoid side effects.
Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Many user space API headers are missing licensing information, which
makes it hard for compliance tools to determine the correct license.
By default are files without license information under the default
license of the kernel, which is GPLV2. Marking them GPLV2 would exclude
them from being included in non GPLV2 code, which is obviously not
intended. The user space API headers fall under the syscall exception
which is in the kernels COPYING file:
NOTE! This copyright does *not* cover user programs that use kernel
services by normal system calls - this is merely considered normal use
of the kernel, and does *not* fall under the heading of "derived work".
otherwise syscall usage would not be possible.
Update the files which contain no license information with an SPDX
license identifier. The chosen identifier is 'GPL-2.0 WITH
Linux-syscall-note' which is the officially assigned identifier for the
Linux syscall exception. SPDX license identifiers are a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne. See the previous patch in this series for the
methodology of how this patch was researched.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>
