/* * 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