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path: root/arch/xtensa/include/uapi/asm/unistd.h
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2018-12-03xtensa: generate uapi header and syscall table header filesFiroz Khan1-781/+2
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 xtensa/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/syscall.c file. Signed-off-by: Firoz Khan <firoz.khan@linaro.org> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2018-12-03xtensa: add __NR_syscalls along with __NR_syscall_countFiroz Khan1-1/+3
__NR_syscall_count macro holds the number of system call exist in xtensa architecture. We have to change the value of __NR_syscall_count, 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- _syscall_count value. 1. Update __NR_syscall_count in asm/unistd.h manually by counting the no.of system calls. No need to update __NR- _syscall_count until we either add a new system call or delete existing system call. 2. We can keep this feature it above mentioned script, that will count the number of syscalls and keep it in a generated file. In this case we don't need to expli- citly update __NR_syscall_count 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. 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 implementation. 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: Max Filippov <jcmvbkbc@gmail.com> [Max: Drop __NR_syscall_count completely, use __NR_syscalls instead]
2017-11-02License cleanup: add SPDX license identifier to uapi header files with no ↵Greg Kroah-Hartman1-0/+1
license 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>
2017-04-01xtensa: wire up statx system callMax Filippov1-1/+4
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2016-11-14xtensa: wire up new pkey_{mprotect,alloc,free} syscallsMax Filippov1-1/+8
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2016-07-31xtensa: wire up new syscallsMax Filippov1-1/+14
Wire up userfaultfd, membarrier, mlock2, copy_file_range, preadv2, pwritev2 Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2015-03-04xtensa: provide __NR_sync_file_range2 instead of __NR_sync_file_rangeMax Filippov1-1/+1
xtensa actually uses sync_file_range2 implementation, so it should define __NR_sync_file_range2 as other architectures that use that function. That fixes userspace interface (that apparently never worked) and avoids special-casing xtensa in libc implementations. See the thread ending at http://lists.busybox.net/pipermail/uclibc/2015-February/048833.html for more details. Cc: stable@vger.kernel.org Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2015-03-04xtensa: wire bpf and execveat syscallsMax Filippov1-1/+5
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-10-21xtensa: re-wire umount syscall to sys_oldumountMax Filippov1-1/+2
Userspace actually passes single parameter (path name) to the umount syscall, so new umount just fails. Fix it by requesting old umount syscall implementation and re-wiring umount to it. Cc: stable@vger.kernel.org Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-10-06xtensa: add seccomp, getrandom, and memfd_create syscallsMax Filippov1-1/+8
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-08-14xtensa: add renameat2 syscallMiklos Szeredi1-1/+4
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Cc: Chris Zankel <chris@zankel.net> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-02-21xtensa: wire up sched_setattr and sched_getattr syscallsMax Filippov1-1/+6
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2013-02-27Merge tag 'xtensa-next-20130225' of git://github.com/czankel/xtensa-linuxLinus Torvalds1-1/+6
Pull xtensa update from Chris Zankel: "Added features: - add support for thread local storage (TLS) - add accept4 and finit_module syscalls - support medium-priority interrupts - add support for dc232c processor variant - support file-base simulated disk for ISS simulator Bug fixes: - fix return values returned by the str[n]cmp functions - avoid mmap cache aliasing - fix handling of 'windowed registers' in ptrace" * tag 'xtensa-next-20130225' of git://github.com/czankel/xtensa-linux: xtensa: add accept4 syscall xtensa: add support for TLS xtensa: add missing include asm/uaccess.h to checksum.h xtensa: do not enable GENERIC_GPIO by default xtensa: complete ptrace handling of register windows xtensa: add support for oprofile xtensa: move spill_registers to traps.h xtensa: ISS: add host file-based simulated disk xtensa: fix str[n]cmp return value xtensa: avoid mmap cache aliasing xtensa: add finit_module syscall xtensa: pull signal definitions from signal-defs.h xtensa: fix ipc_parse_version selection xtensa: dispatch medium-priority interrupts xtensa: Add config files for Diamond 233L - Rev C processor variant xtensa: use new common dtc rule xtensa: rename prom_update_property to of_update_property
2013-02-26xtensa: add accept4 syscallChris Zankel1-1/+4
Signed-off-by: Chris Zankel <chris@zankel.net>
2013-02-24xtensa: add finit_module syscallMax Filippov1-1/+3
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2013-02-04xtensa: switch to generic sigaltstackAl Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-11-29xtensa: switch to generic clone()Al Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-10-26xtensa: switch to generic sys_execve()Max Filippov1-1/+1
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-26xtensa: allow multi-inclusion for uapi/unistd.hChris Zankel1-11/+3
Xtensa implements a method that allows to generate a arbitrary output for each system call by defining the __SYSCALL(number, function, num_args). This usually requires to include uapi/unistd.h twice. Instead of removing the guard agains multiple inclusion entirely, allow to include unistd.h again only if __SYSCALL is defined. Note that __SYSCALL gets always undefined at the end of the file. Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-19xtensa: add missing system calls to the syscall tableChris Zankel1-20/+78
Add the following system calls to the syscall table: fallocate sendmmsg umount2 syncfs epoll_create1 inotify_init1 signalfd4 dup3 pipe2 timerfd_create timerfd_settime timerfd_gettime eventfd2 preadv pwritev fanotify_init fanotify_mark process_vm_readv process_vm_writev name_to_handle_at open_by_handle_at sync_file_range perf_event_open rt_tgsigqueueinfo clock_adjtime prlimit64 kcmp Note that we have to use the 'sys_sync_file_range2' version, so that the 64-bit arguments are aligned correctly to the argument registers. Signed-off-by: Chris Zankel <chris@zankel.net>
2012-10-16UAPI: (Scripted) Disintegrate arch/xtensa/include/asmDavid Howells1-0/+704
UAPI: (Scripted) Disintegrate arch/xtensa/include/asm 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> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
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