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47 lines
979 B
47 lines
979 B
/*
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* Trampoline to trace irqs off. (otherwise CALLER_ADDR1 might crash)
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* Copyright 2008 by Steven Rostedt, Red Hat, Inc
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* (inspired by Andi Kleen's thunk_64.S)
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* Subject to the GNU public license, v.2. No warranty of any kind.
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*/
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#include <linux/linkage.h>
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#define ARCH_TRACE_IRQS_ON \
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pushl %eax; \
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pushl %ecx; \
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pushl %edx; \
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call trace_hardirqs_on; \
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popl %edx; \
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popl %ecx; \
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popl %eax;
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#define ARCH_TRACE_IRQS_OFF \
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pushl %eax; \
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pushl %ecx; \
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pushl %edx; \
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call trace_hardirqs_off; \
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popl %edx; \
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popl %ecx; \
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popl %eax;
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#ifdef CONFIG_TRACE_IRQFLAGS
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/* put return address in eax (arg1) */
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.macro thunk_ra name,func
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.globl \name
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\name:
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pushl %eax
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pushl %ecx
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pushl %edx
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/* Place EIP in the arg1 */
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movl 3*4(%esp), %eax
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call \func
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popl %edx
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popl %ecx
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popl %eax
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ret
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.endm
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thunk_ra trace_hardirqs_on_thunk,trace_hardirqs_on_caller
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thunk_ra trace_hardirqs_off_thunk,trace_hardirqs_off_caller
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#endif
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