include/instrumentation/events/arch/x86/exceptions.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 #if !defined(LTTNG_TRACE_EXCEPTIONS_H) || defined(TRACE_HEADER_MULTI_READ)
   3 #define LTTNG_TRACE_EXCEPTIONS_H
   4
   5 #include <lttng/tracepoint-event.h>
   6 #include <linux/version.h>
   7
   8 #undef TRACE_SYSTEM
   9 #define TRACE_SYSTEM x86_exceptions
  10
  11 LTTNG_TRACEPOINT_EVENT_CLASS(x86_exceptions_class,
  12
  13         TP_PROTO(unsigned long address, struct pt_regs *regs,
  14                 unsigned long error_code),
  15
  16         TP_ARGS(address, regs, error_code),
  17
  18         TP_FIELDS(
  19                 ctf_integer_hex(unsigned long, address, address)
  20                 ctf_integer_hex(unsigned long, ip, regs->ip)
  21                 /*
  22                  * Note: we cast error_code from unsigned long
  23                  * to unsigned char to save space in the trace.
  24                  * Currently, only 5 low bits are used. Should be made
  25                  * larger if error codes are added to the kernel.
  26                  */
  27                 ctf_integer_hex(unsigned char, error_code, error_code)
  28         )
  29 )
  30
  31 #define LTTNG_EXCEPTIONS_TRACEPOINT_EVENT_INSTANCE_MAP(name, map)       \
  32 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(x86_exceptions_class,               \
  33         name,                                                           \
  34         map,                                                            \
  35         TP_PROTO(unsigned long address, struct pt_regs *regs,           \
  36                 unsigned long error_code),                              \
  37         TP_ARGS(address, regs, error_code)                              \
  38 )
  39
  40 LTTNG_EXCEPTIONS_TRACEPOINT_EVENT_INSTANCE_MAP(page_fault_user,
  41                 x86_exceptions_page_fault_user)
  42 LTTNG_EXCEPTIONS_TRACEPOINT_EVENT_INSTANCE_MAP(page_fault_kernel,
  43                 x86_exceptions_page_fault_kernel)
  44
  45 #endif /* LTTNG_TRACE_EXCEPTIONS_H */
  46
  47 #undef TRACE_INCLUDE_PATH
  48 #define TRACE_INCLUDE_PATH instrumentation/events/arch/x86
  49 #undef TRACE_INCLUDE_FILE
  50 #define TRACE_INCLUDE_FILE exceptions
  51
  52 /* This part must be outside protection */
  53 #include <lttng/define_trace.h>