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
5 #include <lttng/tracepoint-event.h>
6 #include <lttng/kernel-version.h>
8 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0))
9 #include <../arch/x86/include/asm/traps.h>
10 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0)) */
12 /* Only define this enum once. */
14 #ifndef ONCE_LTTNG_EXCEPTIONS_H
15 #define ONCE_LTTNG_EXCEPTIONS_H
19 X86_PF_WRITE
= 1 << 1,
22 X86_PF_INSTR
= 1 << 4,
23 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0))
25 #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0)) */
28 #endif /* ONCE_LTTNG_EXCEPTIONS_H */
30 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0)) */
33 #define TRACE_SYSTEM x86_exceptions
35 LTTNG_TRACEPOINT_ENUM(lttng_x86_pf_error_code
,
37 ctf_enum_value("PROTECTION_FAULT", X86_PF_PROT
)
38 ctf_enum_value("WRITE_ACCESS", X86_PF_WRITE
)
39 ctf_enum_value("USER_MODE", X86_PF_USER
)
40 ctf_enum_value("RESERVED_BIT", X86_PF_RSVD
)
41 ctf_enum_value("INSTRUCTION_FETCH", X86_PF_INSTR
)
42 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0))
43 ctf_enum_value("PROTECTION_KEYS_BLOCK", X86_PF_PK
)
44 #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0)) */
48 LTTNG_TRACEPOINT_EVENT_CLASS(x86_exceptions_class
,
50 TP_PROTO(unsigned long address
, struct pt_regs
*regs
,
51 unsigned long error_code
),
53 TP_ARGS(address
, regs
, error_code
),
56 ctf_integer_hex(unsigned long, address
, address
)
57 ctf_integer_hex(unsigned long, ip
, regs
->ip
)
59 * Note: we cast error_code from unsigned long
60 * to unsigned char to save space in the trace.
61 * Currently, only 5 low bits are used. Should be made
62 * larger if error codes are added to the kernel.
64 ctf_enum(lttng_x86_pf_error_code
, unsigned char, error_code
, error_code
)
68 #define LTTNG_EXCEPTIONS_TRACEPOINT_EVENT_INSTANCE_MAP(name, map) \
69 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(x86_exceptions_class, \
72 TP_PROTO(unsigned long address, struct pt_regs *regs, \
73 unsigned long error_code), \
74 TP_ARGS(address, regs, error_code) \
77 LTTNG_EXCEPTIONS_TRACEPOINT_EVENT_INSTANCE_MAP(page_fault_user
,
78 x86_exceptions_page_fault_user
)
79 LTTNG_EXCEPTIONS_TRACEPOINT_EVENT_INSTANCE_MAP(page_fault_kernel
,
80 x86_exceptions_page_fault_kernel
)
82 #endif /* LTTNG_TRACE_EXCEPTIONS_H */
84 #undef TRACE_INCLUDE_PATH
85 #define TRACE_INCLUDE_PATH instrumentation/events/arch/x86
86 #undef TRACE_INCLUDE_FILE
87 #define TRACE_INCLUDE_FILE exceptions
89 /* This part must be outside protection */
90 #include <lttng/define_trace.h>