drivers/staging/lttng/instrumentation/events/lttng-module/syscalls.h

   1 #undef TRACE_SYSTEM
   2 #define TRACE_SYSTEM raw_syscalls
   3 #define TRACE_INCLUDE_FILE syscalls
   4
   5 #if !defined(_TRACE_EVENTS_SYSCALLS_H) || defined(TRACE_HEADER_MULTI_READ)
   6 #define _TRACE_EVENTS_SYSCALLS_H
   7
   8 #include <linux/tracepoint.h>
   9
  10 #ifdef CONFIG_HAVE_SYSCALL_TRACEPOINTS
  11
  12 #ifndef _TRACE_SYSCALLS_DEF_
  13 #define _TRACE_SYSCALLS_DEF_
  14
  15 #include <asm/ptrace.h>
  16 #include <asm/syscall.h>
  17
  18 #endif /* _TRACE_SYSCALLS_DEF_ */
  19
  20 TRACE_EVENT(sys_enter,
  21
  22         TP_PROTO(struct pt_regs *regs, long id),
  23
  24         TP_ARGS(regs, id),
  25
  26         TP_STRUCT__entry(
  27                 __field(        long,           id              )
  28                 __array(        unsigned long,  args,   6       )
  29         ),
  30
  31         TP_fast_assign(
  32                 tp_assign(id, id)
  33                 {
  34                         tp_memcpy(args,
  35                                 ({
  36                                         unsigned long args_copy[6];
  37                                         syscall_get_arguments(current, regs,
  38                                                         0, 6, args_copy);
  39                                         args_copy;
  40                                 }), 6 * sizeof(unsigned long));
  41                 }
  42         ),
  43
  44         TP_printk("NR %ld (%lx, %lx, %lx, %lx, %lx, %lx)",
  45                   __entry->id,
  46                   __entry->args[0], __entry->args[1], __entry->args[2],
  47                   __entry->args[3], __entry->args[4], __entry->args[5])
  48 )
  49
  50 TRACE_EVENT(sys_exit,
  51
  52         TP_PROTO(struct pt_regs *regs, long ret),
  53
  54         TP_ARGS(regs, ret),
  55
  56         TP_STRUCT__entry(
  57                 __field(        long,   id      )
  58                 __field(        long,   ret     )
  59         ),
  60
  61         TP_fast_assign(
  62                 tp_assign(id, syscall_get_nr(current, regs))
  63                 tp_assign(ret, ret)
  64         ),
  65
  66         TP_printk("NR %ld = %ld",
  67                   __entry->id, __entry->ret)
  68 )
  69
  70 #endif /* CONFIG_HAVE_SYSCALL_TRACEPOINTS */
  71
  72 #endif /* _TRACE_EVENTS_SYSCALLS_H */
  73
  74 /* This part must be outside protection */
  75 #include "../../../probes/define_trace.h"
  76