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| author | Hans-Christian Egtvedt <egtvedt@samfundet.no> | 2016-02-28 18:14:41 +0100 |
|---|---|---|
| committer | Hans-Christian Egtvedt <egtvedt@samfundet.no> | 2016-03-14 11:08:29 +0100 |
| commit | b837e97fd35a6b551e3478ace0623a0bd744787c (patch) | |
| tree | 86e994c0e476025a30cd1724f30f4d8caaaa1f18 /arch/avr32/kernel/syscall-stubs.S | |
| parent | b562e44f507e863c6792946e4e1b1449fbbac85d (diff) | |
| download | op-kernel-dev-b837e97fd35a6b551e3478ace0623a0bd744787c.zip op-kernel-dev-b837e97fd35a6b551e3478ace0623a0bd744787c.tar.gz | |
avr32: wire up copy_file_range syscall
This patch wires up the new copy_file_range syscall on AVR32.
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.
Signed-off-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Diffstat (limited to 'arch/avr32/kernel/syscall-stubs.S')
| -rw-r--r-- | arch/avr32/kernel/syscall-stubs.S | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/avr32/kernel/syscall-stubs.S b/arch/avr32/kernel/syscall-stubs.S index f9c68fa..cb39915 100644 --- a/arch/avr32/kernel/syscall-stubs.S +++ b/arch/avr32/kernel/syscall-stubs.S @@ -124,3 +124,12 @@ __sys_process_vm_writev: call sys_process_vm_writev sub sp, -4 popm pc + + .global __sys_copy_file_range + .type __sys_copy_file_range,@function +__sys_copy_file_range: + pushm lr + st.w --sp, ARG6 + call sys_copy_file_range + sub sp, -4 + popm pc |
