mirror of
https://github.com/adulau/aha.git
synced 2024-12-29 12:16:20 +00:00
48 lines
979 B
ArmAsm
48 lines
979 B
ArmAsm
|
/*
|
||
|
|
* 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>
|
||
|
|
|
||
|
|
#define ARCH_TRACE_IRQS_ON \
|
||
|
|
pushl %eax; \
|
||
|
|
pushl %ecx; \
|
||
|
|
pushl %edx; \
|
||
|
|
call trace_hardirqs_on; \
|
||
|
|
popl %edx; \
|
||
|
|
popl %ecx; \
|
||
|
|
popl %eax;
|
||
|
|
|
||
|
|
#define ARCH_TRACE_IRQS_OFF \
|
||
|
|
pushl %eax; \
|
||
|
|
pushl %ecx; \
|
||
|
|
pushl %edx; \
|
||
|
|
call trace_hardirqs_off; \
|
||
|
|
popl %edx; \
|
||
|
|
popl %ecx; \
|
||
|
|
popl %eax;
|
||
|
|
|
||
|
|
#ifdef CONFIG_TRACE_IRQFLAGS
|
||
|
|
/* put return address in eax (arg1) */
|
||
|
|
.macro thunk_ra name,func
|
||
|
|
.globl \name
|
||
|
|
\name:
|
||
|
|
pushl %eax
|
||
|
|
pushl %ecx
|
||
|
|
pushl %edx
|
||
|
|
/* Place EIP in the arg1 */
|
||
|
|
movl 3*4(%esp), %eax
|
||
|
|
call \func
|
||
|
|
popl %edx
|
||
|
|
popl %ecx
|
||
|
|
popl %eax
|
||
|
|
ret
|
||
|
|
.endm
|
||
|
|
|
||
|
|
thunk_ra trace_hardirqs_on_thunk,trace_hardirqs_on_caller
|
||
|
|
thunk_ra trace_hardirqs_off_thunk,trace_hardirqs_off_caller
|
||
|
|
#endif
|