diff options
| author |   José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
|---|---|---|
| committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
| commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
| tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/arch/x86/entry/thunk_32.S | |
| parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) | |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/arch/x86/entry/thunk_32.S')
| -rw-r--r-- | kernel/arch/x86/entry/thunk_32.S | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/kernel/arch/x86/entry/thunk_32.S b/kernel/arch/x86/entry/thunk_32.S new file mode 100644 index 000000000..e5a17114a --- /dev/null +++ b/kernel/arch/x86/entry/thunk_32.S @@ -0,0 +1,40 @@ +/* + * Trampoline to trace irqs off. (otherwise CALLER_ADDR1 might crash) + * Copyright 2008 by Steven Rostedt, Red Hat, Inc + * (inspired by Andi Kleen's thunk_64.S) + * Subject to the GNU public license, v.2. No warranty of any kind. + */ + #include <linux/linkage.h> + #include <asm/asm.h> + + /* put return address in eax (arg1) */ + .macro THUNK name, func, put_ret_addr_in_eax=0 + .globl \name +\name: + pushl %eax + pushl %ecx + pushl %edx + + .if \put_ret_addr_in_eax + /* Place EIP in the arg1 */ + movl 3*4(%esp), %eax + .endif + + call \func + popl %edx + popl %ecx + popl %eax + ret + _ASM_NOKPROBE(\name) + .endm + +#ifdef CONFIG_TRACE_IRQFLAGS + THUNK trace_hardirqs_on_thunk,trace_hardirqs_on_caller,1 + THUNK trace_hardirqs_off_thunk,trace_hardirqs_off_caller,1 +#endif + +#ifdef CONFIG_PREEMPT + THUNK ___preempt_schedule, preempt_schedule + THUNK ___preempt_schedule_notrace, preempt_schedule_notrace +#endif + |