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authorThomas Gleixner <tglx@linutronix.de>2019-02-10 20:44:19 +0100
committerThomas Gleixner <tglx@linutronix.de>2019-02-10 20:44:19 +0100
commitfd659cc095af9cc103e7a2a6448e8bb027035e40 (patch)
tree3cc147fd2180371bfa84a0688e00f5220b874ee2 /arch/xtensa
parentMerge tag 'platform-drivers-x86-v5.0-2' of git://git.infradead.org/linux-platform-drivers-x86 (diff)
parentsyscalls: remove obsolete __IGNORE_ macros (diff)
downloadlinux-dev-fd659cc095af9cc103e7a2a6448e8bb027035e40.tar.xz
linux-dev-fd659cc095af9cc103e7a2a6448e8bb027035e40.zip
Merge tag 'y2038-syscall-cleanup' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground into timers/2038
Pull preparatory work for y2038 changes from Arnd Bergmann: System call unification and cleanup The system call tables have diverged a bit over the years, and a number of the recent additions never made it into all architectures, for one reason or another. This is an attempt to clean it up as far as we can without breaking compatibility, doing a number of steps: - Add system calls that have not yet been integrated into all architectures but that we definitely want there. This includes {,f}statfs64() and get{eg,eu,g,p,u,pp}id() on alpha, which have been missing traditionally. - The s390 compat syscall handling is cleaned up to be more like what we do on other architectures, while keeping the 31-bit pointer extension. This was merged as a shared branch by the s390 maintainers and is included here in order to base the other patches on top. - Add the separate ipc syscalls on all architectures that traditionally only had sys_ipc(). This version is done without support for IPC_OLD that is we have in sys_ipc. The new semtimedop_time64 syscall will only be added here, not in sys_ipc - Add syscall numbers for a couple of syscalls that we probably don't need everywhere, in particular pkey_* and rseq, for the purpose of symmetry: if it's in asm-generic/unistd.h, it makes sense to have it everywhere. I expect that any future system calls will get assigned on all platforms together, even when they appear to be specific to a single architecture. - Prepare for having the same system call numbers for any future calls. In combination with the generated tables, this hopefully makes it easier to add new calls across all architectures together. All of the above are technically separate from the y2038 work, but are done as preparation before we add the new 64-bit time_t system calls everywhere, providing a common baseline set of system calls. I expect that glibc and other libraries that want to use 64-bit time_t will require linux-5.1 kernel headers for building in the future, and at a much later point may also require linux-5.1 or a later version as the minimum kernel at runtime. Having a common baseline then allows the removal of many architecture or kernel version specific workarounds.
Diffstat (limited to 'arch/xtensa')
-rw-r--r--arch/xtensa/include/asm/unistd.h12
-rw-r--r--arch/xtensa/kernel/syscalls/syscall.tbl7
2 files changed, 4 insertions, 15 deletions
diff --git a/arch/xtensa/include/asm/unistd.h b/arch/xtensa/include/asm/unistd.h
index 0d34629dafc5..81cc52ea1bd5 100644
--- a/arch/xtensa/include/asm/unistd.h
+++ b/arch/xtensa/include/asm/unistd.h
@@ -10,18 +10,6 @@
#define __ARCH_WANT_SYS_UTIME
#define __ARCH_WANT_SYS_GETPGRP
-/*
- * Ignore legacy system calls in the checksyscalls.sh script
- */
-
-#define __IGNORE_fork /* use clone */
-#define __IGNORE_time
-#define __IGNORE_alarm /* use setitimer */
-#define __IGNORE_pause
-#define __IGNORE_mmap /* use mmap2 */
-#define __IGNORE_vfork /* use clone */
-#define __IGNORE_fadvise64 /* use fadvise64_64 */
-
#define NR_syscalls __NR_syscalls
#endif /* _XTENSA_UNISTD_H */
diff --git a/arch/xtensa/kernel/syscalls/syscall.tbl b/arch/xtensa/kernel/syscalls/syscall.tbl
index 69cf91b03b26..c699e014e0dd 100644
--- a/arch/xtensa/kernel/syscalls/syscall.tbl
+++ b/arch/xtensa/kernel/syscalls/syscall.tbl
@@ -103,7 +103,7 @@
91 common madvise sys_madvise
92 common shmget sys_shmget
93 common shmat xtensa_shmat
-94 common shmctl sys_shmctl
+94 common shmctl sys_old_shmctl
95 common shmdt sys_shmdt
# Socket Operations
96 common socket sys_socket
@@ -177,12 +177,12 @@
161 common semtimedop sys_semtimedop
162 common semget sys_semget
163 common semop sys_semop
-164 common semctl sys_semctl
+164 common semctl sys_old_semctl
165 common available165 sys_ni_syscall
166 common msgget sys_msgget
167 common msgsnd sys_msgsnd
168 common msgrcv sys_msgrcv
-169 common msgctl sys_msgctl
+169 common msgctl sys_old_msgctl
170 common available170 sys_ni_syscall
# File System
171 common umount2 sys_umount
@@ -372,3 +372,4 @@
349 common pkey_alloc sys_pkey_alloc
350 common pkey_free sys_pkey_free
351 common statx sys_statx
+352 common rseq sys_rseq