probes/lttng-probe-syscalls.c

   1 /*
   2  * probes/lttng-probe-sched.c
   3  *
   4  * Copyright 2010 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   5  *
   6  * LTTng sched probes.
   7  *
   8  * Dual LGPL v2.1/GPL v2 license.
   9  */
  10
  11 #include <linux/module.h>
  12
  13 #ifndef SYSCALL_DETAIL
  14
  15 /*
  16  * Create the tracepoint static inlines from the kernel to validate that our
  17  * trace event macros match the kernel we run on.
  18  */
  19 #include <trace/events/syscalls.h>
  20
  21 /*
  22  * Create LTTng tracepoint probes.
  23  */
  24 #define LTTNG_PACKAGE_BUILD
  25 #define CREATE_TRACE_POINTS
  26 #define TRACE_INCLUDE_PATH ../instrumentation/events/lttng-module
  27
  28 #include "../instrumentation/events/lttng-module/syscalls.h"
  29
  30 #else   /* SYSCALL_DETAIL */
  31
  32 /*
  33  * Create LTTng tracepoint probes.
  34  */
  35 #define LTTNG_PACKAGE_BUILD
  36 #define CREATE_TRACE_POINTS
  37
  38 #define TRACE_INCLUDE_PATH ../instrumentation/syscalls/headers
  39
  40 #define TRACE_SYSCALL_TABLE(_name, _nr, _nrargs)
  41
  42 #include "../instrumentation/syscalls/headers/syscalls.h"
  43
  44 #undef LTTNG_PACKAGE_BUILD
  45 #undef CREATE_TRACE_POINTS
  46
  47 struct trace_syscall_entry {
  48         void *func;
  49         unsigned int nrargs;
  50 };
  51
  52 #define CREATE_SYSCALL_TABLE
  53
  54 #undef TRACE_SYSCALL_TABLE
  55 #define TRACE_SYSCALL_TABLE(_name, _nr, _nrargs)        \
  56         [ _nr ] = { .func = __event_probe__##_name, .nrargs = (_nrargs) },
  57
  58 static struct trace_syscall_entry sc_table[] = {
  59 #include "../instrumentation/syscalls/headers/syscalls.h"
  60 };
  61 #undef CREATE_SYSCALL_TABLE
  62
  63 #endif  /* SYSCALL_DETAIL */
  64
  65 MODULE_LICENSE("GPL and additional rights");
  66 MODULE_AUTHOR("Mathieu Desnoyers <mathieu.desnoyers@efficios.com>");
  67 MODULE_DESCRIPTION("LTTng sched probes");