linux/arch/xtensa/kernel
Firoz Khan c7914ef69d xtensa: add system call table generation support
The system call tables are in different format in all
architecture and it will be difficult to manually add,
modify or delete the syscall table entries in the res-
pective files. To make it easy by keeping a script and
which will generate the uapi header and syscall table
file. This change will also help to unify the implemen-
tation across all architectures.

The system call table generation script is added in
kernel/syscalls directory which contain the scripts to
generate both uapi header file and system call table
files. The syscall.tbl will be input for the scripts.

syscall.tbl contains the list of available system calls
along with system call number and corresponding entry
point. Add a new system call in this architecture will
be possible by adding new entry in the syscall.tbl file.

Adding a new table entry consisting of:
  	- System call number.
	- ABI.
	- System call name.
	- Entry point name.

syscallhdr.sh and syscalltbl.sh will generate uapi header
unistd_32.h and syscall_table.h files respectively. Both
.sh files will parse the content syscall.tbl to generate
the header and table files. unistd_32.h will be included
by uapi/asm/unistd.h and syscall_table.h is included by
kernel/syscall.c - the real system call table.

ARM, s390 and x86 architecuture does have similar support.
I leverage their implementation to come up with a generic
solution.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2018-12-02 23:45:22 -08:00
..
syscalls xtensa: add system call table generation support 2018-12-02 23:45:22 -08:00
.gitignore xtensa: tell git to ignore generated files 2013-06-05 10:14:19 -07:00
align.S xtensa: clean up word alignment macros in assembly code 2017-12-10 14:48:53 -08:00
asm-offsets.c xtensa: fix coprocessor context offset definitions 2018-11-26 18:37:49 -08:00
coprocessor.S xtensa: use call instead of callx in assembly code 2017-12-10 14:48:52 -08:00
entry.S xtensa: add __NR_syscalls along with __NR_syscall_count 2018-12-02 23:45:21 -08:00
head.S xtensa: fix boot parameters address translation 2018-11-14 00:15:32 -08:00
hw_breakpoint.c perf/arch/xtensa: Implement hw_breakpoint_arch_parse() 2018-06-26 09:07:58 +02:00
irq.c xtensa: drop variant IRQ support 2018-08-20 12:28:05 -07:00
Makefile kbuild/arch/xtensa: Define LINKER_SCRIPT for the linker script 2018-10-04 10:05:38 +02:00
mcount.S xtensa: add static function tracer support 2013-07-08 01:18:57 -07:00
module.c xtensa: clean up custom-controlled debug output 2017-12-16 22:37:08 -08:00
mxhead.S xtensa: drop unused sections and remapped reset handlers 2015-11-03 17:19:39 +03:00
pci-dma.c Xtensa improvements for v4.19: 2018-08-22 14:04:41 -07:00
pci.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
perf_event.c cpu/hotplug: Cleanup state names 2016-12-25 10:47:44 +01:00
platform.c xtensa: cleanup ccount frequency tracking 2013-07-08 01:11:37 -07:00
process.c xtensa: enable coprocessors that are being flushed 2018-11-26 18:37:47 -08:00
ptrace.c xtensa: fix coprocessor part of ptrace_{get,set}xregs 2018-11-26 18:37:51 -08:00
s32c1i_selftest.c xtensa: move S32C1I self-test to a separate file 2016-11-16 15:08:28 -08:00
setup.c xtensa: make bootparam parsing optional 2018-08-20 12:28:05 -07:00
signal.c xtensa: clean up custom-controlled debug output 2017-12-16 22:37:08 -08:00
smp.c sched/headers: Move task->mm handling methods to <linux/sched/mm.h> 2017-03-03 01:43:28 +01:00
stacktrace.c xtensa: clean up access to spilled registers locations 2017-05-01 10:34:43 -07:00
syscall.c xtensa: add __NR_syscalls along with __NR_syscall_count 2018-12-02 23:45:21 -08:00
time.c clocksource/drivers: Rename clocksource_probe to timer_probe 2017-06-14 11:59:16 +02:00
traps.c signal/xtensa: Use force_sig_fault where appropriate 2018-04-25 10:44:12 -05:00
vectors.S xtensa: use call instead of callx in assembly code 2017-12-10 14:48:52 -08:00
vmlinux.lds.S Xtensa fixes and cleanups for v4.20: 2018-11-01 14:32:43 -07:00
xtensa_ksyms.c xtensa: use generic strncpy_from_user with KASAN 2017-12-17 15:34:57 -08:00