instrumentation/events/lttng-module/arch/x86/exceptions.h

   1 #if !defined(LTTNG_TRACE_EXCEPTIONS_H) || defined(TRACE_HEADER_MULTI_READ)
   2 #define LTTNG_TRACE_EXCEPTIONS_H
   3
   4 #include <probes/lttng-tracepoint-event.h>
   5 #include <linux/version.h>
   6
   7 #undef TRACE_SYSTEM
   8 #define TRACE_SYSTEM x86_exceptions
   9
  10 LTTNG_TRACEPOINT_EVENT_CLASS(x86_exceptions_class,
  11
  12         TP_PROTO(unsigned long address, struct pt_regs *regs,
  13                 unsigned long error_code),
  14
  15         TP_ARGS(address, regs, error_code),
  16
  17         TP_FIELDS(
  18                 ctf_integer_hex(unsigned long, address, address)
  19                 ctf_integer_hex(unsigned long, ip, regs->ip)
  20                 /*
  21                  * Note: we cast error_code from unsigned long
  22                  * to unsigned char to save space in the trace.
  23                  * Currently, only 5 low bits are used. Should be made
  24                  * larger if error codes are added to the kernel.
  25                  */
  26                 ctf_integer_hex(unsigned char, error_code, error_code)
  27         )
  28 )
  29
  30 #define LTTNG_EXCEPTIONS_TRACEPOINT_EVENT_INSTANCE_MAP(name, map)       \
  31 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(x86_exceptions_class,               \
  32         name,                                                           \
  33         map,                                                            \
  34         TP_PROTO(unsigned long address, struct pt_regs *regs,           \
  35                 unsigned long error_code),                              \
  36         TP_ARGS(address, regs, error_code)                              \
  37 )
  38
  39 LTTNG_EXCEPTIONS_TRACEPOINT_EVENT_INSTANCE_MAP(page_fault_user,
  40                 x86_exceptions_page_fault_user)
  41 LTTNG_EXCEPTIONS_TRACEPOINT_EVENT_INSTANCE_MAP(page_fault_kernel,
  42                 x86_exceptions_page_fault_kernel)
  43
  44 #endif /* LTTNG_TRACE_EXCEPTIONS_H */
  45
  46 #undef TRACE_INCLUDE_PATH
  47 #define TRACE_INCLUDE_PATH instrumentation/events/lttng-module/arch/x86
  48 #undef TRACE_INCLUDE_FILE
  49 #define TRACE_INCLUDE_FILE exceptions
  50
  51 /* This part must be outside protection */
  52 #include <probes/define_trace.h>