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c149a665ac
Vsyscall emulation is slow, so make it easy to track down. Signed-off-by: Andy Lutomirski <luto@mit.edu> Link: http://lkml.kernel.org/r/cdaad7da946a80b200df16647c1700db3e1171e9.1312378163.git.luto@mit.edu Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
30 lines
550 B
C
30 lines
550 B
C
#undef TRACE_SYSTEM
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#define TRACE_SYSTEM vsyscall
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#if !defined(__VSYSCALL_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
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#define __VSYSCALL_TRACE_H
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#include <linux/tracepoint.h>
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TRACE_EVENT(emulate_vsyscall,
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TP_PROTO(int nr),
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TP_ARGS(nr),
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TP_STRUCT__entry(__field(int, nr)),
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TP_fast_assign(
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__entry->nr = nr;
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),
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TP_printk("nr = %d", __entry->nr)
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);
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#endif
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#undef TRACE_INCLUDE_PATH
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#define TRACE_INCLUDE_PATH ../../arch/x86/kernel
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#define TRACE_INCLUDE_FILE vsyscall_trace
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#include <trace/define_trace.h>
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