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/* Copyright (C) 2005-2009 Red Hat Inc.
Copyright (C) 2006 Intel Corporation.
This file is part of systemtap, and is free software. You can
redistribute it and/or modify it under the terms of the GNU General
Public License (GPL); either version 2, or (at your option) any
later version.
*/
#ifndef _SYS_SDT_H
#define _SYS_SDT_H 1
#include <string.h>
#include <sys/types.h>
#if _LP64
#define STAP_PROBE_STRUCT_ARG(arg) \
__uint64_t arg
#else
#define STAP_PROBE_STRUCT_ARG(arg) \
long arg __attribute__ ((aligned(8)))
#endif
#define STAP_SENTINEL 0x31425250
#define STAP_PROBE_STRUCT(probe,argc) \
struct _probe_ ## probe \
{ \
int probe_type; \
STAP_PROBE_STRUCT_ARG (probe_name); \
STAP_PROBE_STRUCT_ARG (probe_arg); \
}; \
static char probe ## _ ## probe_name [] \
__attribute__ ((section (".probes"))) \
= #probe; \
__extension__ static volatile struct _probe_ ## probe _probe_ ## probe __attribute__ ((section (".probes"))) = {STAP_SENTINEL,(size_t)& probe ## _ ## probe_name[0],argc};
/* The goto _probe_ prevents the label from "drifting" */
#define STAP_LABEL_REF(probe, label) \
if (__builtin_expect(_probe_ ## probe.probe_type < 0, 0)) \
goto label;
/* These baroque macros are used to create a unique label */
#define STAP_CONCAT(a,b) a ## b
#define STAP_LABEL_PREFIX(p) _stapprobe1_ ## p
/* __COUNTER__ is not present in gcc 4.1 */
#if __GNUC__ == 4 && __GNUC_MINOR__ >= 3
#define STAP_COUNTER STAP_CONCAT(__,COUNTER__)
#else
#define STAP_COUNTER STAP_CONCAT(__,LINE__)
#endif
#define STAP_LABEL(a,b) STAP_CONCAT(a,b)
#define STAP_PROBE_(probe,label) \
do { \
STAP_PROBE_STRUCT(probe,(size_t)&& label) \
STAP_LABEL_REF(probe,label); \
label: \
__asm__ volatile ("nop"); \
} while (0)
#define STAP_PROBE1_(probe,label,parm1) \
do { \
STAP_PROBE_STRUCT(probe,(size_t)&& label) \
volatile __typeof__((parm1)) arg1 __attribute__ ((unused)) = parm1; \
label: \
__asm__ volatile ("nop /* %0 */" :: "X"( arg1)); \
STAP_LABEL_REF(probe,label); \
} while (0)
#define STAP_PROBE2_(probe,label,parm1,parm2) \
do { \
STAP_PROBE_STRUCT(probe,(size_t)&& label) \
volatile __typeof__((parm1)) arg1 __attribute__ ((unused)) = parm1; \
volatile __typeof__((parm2)) arg2 __attribute__ ((unused)) = parm2; \
label: \
__asm__ volatile ("nop /* %0 %1 */" :: "X"(arg1), "X"(arg2)); \
STAP_LABEL_REF(probe,label); \
} while (0)
#define STAP_PROBE3_(probe,label,parm1,parm2,parm3) \
do { \
STAP_PROBE_STRUCT(probe,(size_t)&& label) \
volatile __typeof__((parm1)) arg1 __attribute__ ((unused)) = parm1; \
volatile __typeof__((parm2)) arg2 __attribute__ ((unused)) = parm2; \
volatile __typeof__((parm3)) arg3 __attribute__ ((unused)) = parm3; \
label: \
__asm__ volatile ("nop /* %0 %1 %2 */" :: "X"(arg1), "X"(arg2), "X"(arg3)); \
STAP_LABEL_REF(probe,label); \
} while (0)
#define STAP_PROBE4_(probe,label,parm1,parm2,parm3,parm4) \
do { \
STAP_PROBE_STRUCT(probe,(size_t)&& label) \
volatile __typeof__((parm1)) arg1 __attribute__ ((unused)) = parm1; \
volatile __typeof__((parm2)) arg2 __attribute__ ((unused)) = parm2; \
volatile __typeof__((parm3)) arg3 __attribute__ ((unused)) = parm3; \
volatile __typeof__((parm4)) arg4 __attribute__ ((unused)) = parm4; \
label: \
__asm__ volatile ("nop /* %0 %1 %2 %3 */" :: "X"(arg1), "X"(arg2), "X"(arg3), "X"(arg4)); \
STAP_LABEL_REF(probe,label); \
} while (0)
#define STAP_PROBE5_(probe,label,parm1,parm2,parm3,parm4,parm5) \
do { \
STAP_PROBE_STRUCT(probe,(size_t)&& label) \
volatile __typeof__((parm1)) arg1 __attribute__ ((unused)) = parm1; \
volatile __typeof__((parm2)) arg2 __attribute__ ((unused)) = parm2; \
volatile __typeof__((parm3)) arg3 __attribute__ ((unused)) = parm3; \
volatile __typeof__((parm4)) arg4 __attribute__ ((unused)) = parm4; \
volatile __typeof__((parm5)) arg5 __attribute__ ((unused)) = parm5; \
label: \
__asm__ volatile ("nop /* %0 %1 %2 %3 %4 */" :: "X"(arg1), "X"(arg2), "X"(arg3), "X"(arg4), "X"(arg5)); \
STAP_LABEL_REF(probe,label); \
} while (0)
#define STAP_PROBE6_(probe,label,parm1,parm2,parm3,parm4,parm5,parm6) \
do { \
STAP_PROBE_STRUCT(probe,(size_t)&& label) \
volatile __typeof__((parm1)) arg1 __attribute__ ((unused)) = parm1; \
volatile __typeof__((parm2)) arg2 __attribute__ ((unused)) = parm2; \
volatile __typeof__((parm3)) arg3 __attribute__ ((unused)) = parm3; \
volatile __typeof__((parm4)) arg4 __attribute__ ((unused)) = parm4; \
volatile __typeof__((parm5)) arg5 __attribute__ ((unused)) = parm5; \
volatile __typeof__((parm6)) arg6 __attribute__ ((unused)) = parm6; \
label: \
__asm__ volatile ("nop" :: "X"(arg1), "X"(arg2), "X"(arg3), "X"(arg4), "X"(arg5), "X"(arg6)); \
STAP_LABEL_REF(probe,label); \
} while (0)
#define STAP_PROBE7_(probe,label,parm1,parm2,parm3,parm4,parm5,parm6,parm7) \
do { \
STAP_PROBE_STRUCT(probe,(size_t)&& label) \
volatile __typeof__((parm1)) arg1 __attribute__ ((unused)) = parm1; \
volatile __typeof__((parm2)) arg2 __attribute__ ((unused)) = parm2; \
volatile __typeof__((parm3)) arg3 __attribute__ ((unused)) = parm3; \
volatile __typeof__((parm4)) arg4 __attribute__ ((unused)) = parm4; \
volatile __typeof__((parm5)) arg5 __attribute__ ((unused)) = parm5; \
volatile __typeof__((parm6)) arg6 __attribute__ ((unused)) = parm6; \
volatile __typeof__((parm7)) arg7 __attribute__ ((unused)) = parm7; \
label: \
__asm__ volatile ("nop" :: "X"(arg1), "X"(arg2), "X"(arg3), "X"(arg4), "X"(arg5), "X"(arg6), "X"(arg7)); \
STAP_LABEL_REF(probe,label); \
} while (0)
#define STAP_PROBE8_(probe,label,parm1,parm2,parm3,parm4,parm5,parm6,parm7,parm8) \
do { \
STAP_PROBE_STRUCT(probe,(size_t)&& label) \
volatile __typeof__((parm1)) arg1 __attribute__ ((unused)) = parm1; \
volatile __typeof__((parm2)) arg2 __attribute__ ((unused)) = parm2; \
volatile __typeof__((parm3)) arg3 __attribute__ ((unused)) = parm3; \
volatile __typeof__((parm4)) arg4 __attribute__ ((unused)) = parm4; \
volatile __typeof__((parm5)) arg5 __attribute__ ((unused)) = parm5; \
volatile __typeof__((parm6)) arg6 __attribute__ ((unused)) = parm6; \
volatile __typeof__((parm7)) arg7 __attribute__ ((unused)) = parm7; \
volatile __typeof__((parm8)) arg8 __attribute__ ((unused)) = parm8; \
label: \
__asm__ volatile ("nop" :: "X"(arg1), "X"(arg2), "X"(arg3), "X"(arg4), "X"(arg5), "X"(arg6), "X"(arg7), "X"(arg8)); \
STAP_LABEL_REF(probe,label); \
} while (0)
#define STAP_PROBE9_(probe,label,parm1,parm2,parm3,parm4,parm5,parm6,parm7,parm8,parm9) \
do { \
STAP_PROBE_STRUCT(probe,(size_t)&& label) \
volatile __typeof__((parm1)) arg1 __attribute__ ((unused)) = parm1; \
volatile __typeof__((parm2)) arg2 __attribute__ ((unused)) = parm2; \
volatile __typeof__((parm3)) arg3 __attribute__ ((unused)) = parm3; \
volatile __typeof__((parm4)) arg4 __attribute__ ((unused)) = parm4; \
volatile __typeof__((parm5)) arg5 __attribute__ ((unused)) = parm5; \
volatile __typeof__((parm6)) arg6 __attribute__ ((unused)) = parm6; \
volatile __typeof__((parm7)) arg7 __attribute__ ((unused)) = parm7; \
volatile __typeof__((parm8)) arg8 __attribute__ ((unused)) = parm8; \
volatile __typeof__((parm9)) arg9 __attribute__ ((unused)) = parm9; \
label: \
__asm__ volatile ("nop" :: "X"(arg1), "X"(arg2), "X"(arg3), "X"(arg4), "X"(arg5), "X"(arg6), "X"(arg7), "X"(arg8), "X"(arg9)); \
STAP_LABEL_REF(probe,label); \
} while (0)
#define STAP_PROBE10_(probe,label,parm1,parm2,parm3,parm4,parm5,parm6,parm7,parm8,parm9,parm10) \
do { \
STAP_PROBE_STRUCT(probe,(size_t)&& label) \
volatile __typeof__((parm1)) arg1 __attribute__ ((unused)) = parm1; \
volatile __typeof__((parm2)) arg2 __attribute__ ((unused)) = parm2; \
volatile __typeof__((parm3)) arg3 __attribute__ ((unused)) = parm3; \
volatile __typeof__((parm4)) arg4 __attribute__ ((unused)) = parm4; \
volatile __typeof__((parm5)) arg5 __attribute__ ((unused)) = parm5; \
volatile __typeof__((parm6)) arg6 __attribute__ ((unused)) = parm6; \
volatile __typeof__((parm7)) arg7 __attribute__ ((unused)) = parm7; \
volatile __typeof__((parm8)) arg8 __attribute__ ((unused)) = parm8; \
volatile __typeof__((parm9)) arg9 __attribute__ ((unused)) = parm9; \
volatile __typeof__((parm10)) arg10 __attribute__ ((unused)) = parm10; \
label: \
__asm__ volatile ("nop" :: "X"(arg1), "X"(arg2), "X"(arg3), "X"(arg4), "X"(arg5), "X"(arg6), "X"(arg7), "X"(arg8), "X"(arg9), "X"(arg10)); \
STAP_LABEL_REF(probe,label); \
} while (0)
#define STAP_PROBE(provider,probe) \
STAP_PROBE_(probe,STAP_LABEL(STAP_LABEL_PREFIX(probe),STAP_COUNTER))
#define STAP_PROBE1(provider,probe,...) \
STAP_PROBE1_(probe,STAP_LABEL(STAP_LABEL_PREFIX(probe),STAP_COUNTER),__VA_ARGS__)
#define STAP_PROBE2(provider,probe,...) \
STAP_PROBE2_(probe,STAP_LABEL(STAP_LABEL_PREFIX(probe),STAP_COUNTER),__VA_ARGS__)
#define STAP_PROBE3(provider,probe,...) \
STAP_PROBE3_(probe,STAP_LABEL(STAP_LABEL_PREFIX(probe),STAP_COUNTER),__VA_ARGS__)
#define STAP_PROBE4(provider,probe,...) \
STAP_PROBE4_(probe,STAP_LABEL(STAP_LABEL_PREFIX(probe),STAP_COUNTER),__VA_ARGS__)
#define STAP_PROBE5(provider,probe,...) \
STAP_PROBE5_(probe,STAP_LABEL(STAP_LABEL_PREFIX(probe),STAP_COUNTER),__VA_ARGS__)
#define STAP_PROBE6(provider,probe,...) \
STAP_PROBE6_(probe,STAP_LABEL(STAP_LABEL_PREFIX(probe),STAP_COUNTER),__VA_ARGS__)
#define STAP_PROBE7(provider,probe,...) \
STAP_PROBE7_(probe,STAP_LABEL(STAP_LABEL_PREFIX(probe),STAP_COUNTER),__VA_ARGS__)
#define STAP_PROBE8(provider,probe,...) \
STAP_PROBE8_(probe,STAP_LABEL(STAP_LABEL_PREFIX(probe),STAP_COUNTER),__VA_ARGS__)
#define STAP_PROBE9(provider,probe,...) \
STAP_PROBE9_(probe,STAP_LABEL(STAP_LABEL_PREFIX(probe),STAP_COUNTER),__VA_ARGS__)
#define STAP_PROBE10(provider,probe,...) \
STAP_PROBE10_(probe,STAP_LABEL(STAP_LABEL_PREFIX(probe),STAP_COUNTER),__VA_ARGS__)
#define DTRACE_PROBE(provider,probe) \
STAP_PROBE(provider,probe)
#define DTRACE_PROBE1(provider,probe,parm1) \
STAP_PROBE1(provider,probe,parm1)
#define DTRACE_PROBE2(provider,probe,parm1,parm2) \
STAP_PROBE2(provider,probe,parm1,parm2)
#define DTRACE_PROBE3(provider,probe,parm1,parm2,parm3) \
STAP_PROBE3(provider,probe,parm1,parm2,parm3)
#define DTRACE_PROBE4(provider,probe,parm1,parm2,parm3,parm4) \
STAP_PROBE4(provider,probe,parm1,parm2,parm3,parm4)
#define DTRACE_PROBE5(provider,probe,parm1,parm2,parm3,parm4,parm5) \
STAP_PROBE5(provider,probe,parm1,parm2,parm3,parm4,parm5)
#define DTRACE_PROBE6(provider,probe,parm1,parm2,parm3,parm4,parm5,parm6) \
STAP_PROBE6(provider,probe,parm1,parm2,parm3,parm4,parm5,parm6)
#define DTRACE_PROBE7(provider,probe,parm1,parm2,parm3,parm4,parm5,parm6,parm7) \
STAP_PROBE7(provider,probe,parm1,parm2,parm3,parm4,parm5,parm6,parm7)
#define DTRACE_PROBE8(provider,probe,parm1,parm2,parm3,parm4,parm5,parm6,parm7,parm8) \
STAP_PROBE8(provider,probe,parm1,parm2,parm3,parm4,parm5,parm6,parm7,parm8)
#define DTRACE_PROBE9(provider,probe,parm1,parm2,parm3,parm4,parm5,parm6,parm7,parm8,parm9) \
STAP_PROBE9(provider,probe,parm1,parm2,parm3,parm4,parm5,parm6,parm7,parm8,parm9)
#endif /* sys/sdt.h */
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