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Commit f3240c1f authored by Hans-Christian Egtvedt's avatar Hans-Christian Egtvedt
Browse files

avr32: wire up missing syscalls 



This patch adds a bunch of missing syscalls to AVR32:
__NR_pread64
__NR_pwrite64
__NR_timerfd_create
__NR_fallocate
__NR_timerfd_settime
__NR_timerfd_gettime
__NR_signalfd4
__NR_eventfd2
__NR_epoll_create1
__NR_dup3
__NR_pipe2
__NR_inotify_init1
__NR_preadv
__NR_pwritev
__NR_rt_tgsigqueueinfo
__NR_perf_event_open
__NR_recvmmsg
__NR_fanotify_init
__NR_fanotify_mark
__NR_prlimit64
__NR_name_to_handle_at
__NR_open_by_handle_at
__NR_clock_adjtime
__NR_syncfs
__NR_sendmmsg
__NR_process_vm_readv
__NR_process_vm_writev
__NR_kcmp
__NR_finit_module
__NR_sched_setattr
__NR_sched_getattr
__NR_renameat2
__NR_seccomp
__NR_getrandom
__NR_memfd_create
__NR_bpf
__NR_execveat

On AVR32, all parameters beyond the 5th are passed on the stack. System
calls don't use the stack -- they borrow a callee-saved register
instead. This means that syscalls that take 6 parameters must be called
through a stub that pushes the last parameter on the stack.

This relates to syscall fallocate, fanotify_mark, process_vm_readv, and
process_vm_writev.

Signed-off-by: default avatarHans-Christian Egtvedt <egtvedt@samfundet.no>
parent bfa76d49

arch/avr32/include/asm/unistd.h

+1 −1
Original line number Diff line number Diff line
@@ -10,7 +10,7 @@ 


#include <uapi/asm/unistd.h>



#define NR_syscalls		284

#define NR_syscalls		321



/* Old stuff */

#define __IGNORE_uselib

arch/avr32/include/uapi/asm/unistd.h

+37 −4
Original line number Diff line number Diff line
@@ -222,7 +222,6 @@ 
#define __NR_epoll_wait		207

#define __NR_remap_file_pages	208

#define __NR_set_tid_address	209



#define __NR_timer_create	210

#define __NR_timer_settime	211

#define __NR_timer_gettime	212
@@ -238,7 +237,6 @@ 
				/* 222 reserved for tux */

#define __NR_utimes		223

#define __NR_fadvise64_64	224



#define __NR_cacheflush		225



#define __NR_vserver		226
@@ -281,7 +279,6 @@ 
#define __NR_tee		263

#define __NR_vmsplice		264

#define __NR_epoll_pwait	265



#define __NR_msgget		266

#define __NR_msgsnd		267

#define __NR_msgrcv		268
@@ -294,11 +291,47 @@ 
#define __NR_shmget		275

#define __NR_shmdt		276

#define __NR_shmctl		277



#define __NR_utimensat		278

#define __NR_signalfd		279

/* 280 was __NR_timerfd */

#define __NR_eventfd		281

#define __NR_setns		283

#define __NR_pread64		284

#define __NR_pwrite64		285

#define __NR_timerfd_create	286

#define __NR_fallocate		287

#define __NR_timerfd_settime	288

#define __NR_timerfd_gettime	289

#define __NR_signalfd4		290

#define __NR_eventfd2		291

#define __NR_epoll_create1	292

#define __NR_dup3		293

#define __NR_pipe2		294

#define __NR_inotify_init1	295

#define __NR_preadv		296

#define __NR_pwritev		297

#define __NR_rt_tgsigqueueinfo	298

#define __NR_perf_event_open	299

#define __NR_recvmmsg		300

#define __NR_fanotify_init	301

#define __NR_fanotify_mark	302

#define __NR_prlimit64		303

#define __NR_name_to_handle_at	304

#define __NR_open_by_handle_at	305

#define __NR_clock_adjtime	306

#define __NR_syncfs		307

#define __NR_sendmmsg		308

#define __NR_process_vm_readv	309

#define __NR_process_vm_writev	310

#define __NR_kcmp		311

#define __NR_finit_module	312

#define __NR_sched_setattr	313

#define __NR_sched_getattr	314

#define __NR_renameat2		315

#define __NR_seccomp		316

#define __NR_getrandom		317

#define __NR_memfd_create	318

#define __NR_bpf		319

#define __NR_execveat		320



#endif /* _UAPI__ASM_AVR32_UNISTD_H */

arch/avr32/kernel/syscall-stubs.S

+36 −0
Original line number Diff line number Diff line
@@ -88,3 +88,39 @@ __sys_sync_file_range: 
	call	sys_sync_file_range

	sub	sp, -4

	popm	pc



	.global __sys_fallocate

	.type	__sys_fallocate,@function

__sys_fallocate:

	pushm	lr

	st.w	--sp, ARG6

	call	sys_fallocate

	sub	sp, -4

	popm	pc



	.global __sys_fanotify_mark

	.type	__sys_fanotify_mark,@function

__sys_fanotify_mark:

	pushm	lr

	st.w	--sp, ARG6

	call	sys_fanotify_mark

	sub	sp, -4

	popm	pc



	.global __sys_process_vm_readv

	.type	__sys_process_vm_readv,@function

__sys_process_vm_readv:

	pushm	lr

	st.w	--sp, ARG6

	call	sys_process_vm_readv

	sub	sp, -4

	popm	pc



	.global __sys_process_vm_writev

	.type	__sys_process_vm_writev,@function

__sys_process_vm_writev:

	pushm	lr

	st.w	--sp, ARG6

	call	sys_process_vm_writev

	sub	sp, -4

	popm	pc

arch/avr32/kernel/syscall_table.S

+37 −0
Original line number Diff line number Diff line
@@ -297,4 +297,41 @@ sys_call_table: 
	.long	sys_eventfd

	.long	sys_recvmmsg

	.long	sys_setns

	.long	sys_pread64

	.long	sys_pwrite64		/* 285 */

	.long	sys_timerfd_create

	.long	__sys_fallocate

	.long	sys_timerfd_settime

	.long	sys_timerfd_gettime

	.long	sys_signalfd4		/* 290 */

	.long	sys_eventfd2

	.long	sys_epoll_create1

	.long	sys_dup3

	.long	sys_pipe2

	.long	sys_inotify_init1	/* 295 */

	.long	sys_preadv

	.long	sys_pwritev

	.long	sys_rt_tgsigqueueinfo

	.long	sys_perf_event_open

	.long	sys_recvmmsg		/* 300 */

	.long	sys_fanotify_init

	.long	__sys_fanotify_mark

	.long	sys_prlimit64

	.long	sys_name_to_handle_at

	.long	sys_open_by_handle_at	/* 305 */

	.long	sys_clock_adjtime

	.long	sys_syncfs

	.long	sys_sendmmsg

	.long	__sys_process_vm_readv

	.long	__sys_process_vm_writev	/* 310 */

	.long	sys_kcmp

	.long	sys_finit_module

	.long	sys_sched_setattr

	.long	sys_sched_getattr

	.long	sys_renameat2		/* 315 */

	.long	sys_seccomp

	.long	sys_getrandom

	.long	sys_memfd_create

	.long	sys_bpf

	.long	sys_execveat		/* 320 */

	.long	sys_ni_syscall		/* r8 is saturated at nr_syscalls */