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| author | Hans-Christian Egtvedt <egtvedt@samfundet.no> | 2014-12-25 19:58:50 +0100 |
|---|---|---|
| committer | Hans-Christian Egtvedt <egtvedt@samfundet.no> | 2015-02-09 15:27:44 +0100 |
| commit | f3240c1f6d18591b2c1ef33ed18d5ca91e62c104 (patch) | |
| tree | 32879b14929eb1cadb337af885cd3fcb48df7a8f /arch/avr32/kernel/syscall-stubs.S | |
| parent | bfa76d49576599a4b9f9b7a71f23d73d6dcff735 (diff) | |
| download | linux-f3240c1f6d18591b2c1ef33ed18d5ca91e62c104.tar.gz linux-f3240c1f6d18591b2c1ef33ed18d5ca91e62c104.tar.xz | |
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: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Diffstat (limited to 'arch/avr32/kernel/syscall-stubs.S')
| -rw-r--r-- | arch/avr32/kernel/syscall-stubs.S | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/avr32/kernel/syscall-stubs.S b/arch/avr32/kernel/syscall-stubs.S index b5fc927cd398..f9c68fab0e2f 100644 --- a/arch/avr32/kernel/syscall-stubs.S +++ b/arch/avr32/kernel/syscall-stubs.S @@ -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 |