projects / lttng-modules.git / blame
| Commit | Line | Data |
|---|---|---|
| b7cdc182 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| da0f6c58 MD |
2 | #if !defined(LTTNG_TRACE_EXCEPTIONS_H) || defined(TRACE_HEADER_MULTI_READ) |
| 3 | #define LTTNG_TRACE_EXCEPTIONS_H | |
| 4 | ||
| 3b4aafcb | 5 | #include <lttng/tracepoint-event.h> |
| 5f4c791e | 6 | #include <lttng/kernel-version.h> |
| da0f6c58 | 7 | |
| 2eb43df6 | 8 | #ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM |
| 5f4c791e | 9 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0)) |
| 8c7f2a9f | 10 | #include <../arch/x86/include/asm/traps.h> |
| 5f4c791e | 11 | #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0)) */ |
| 8c7f2a9f FD |
12 | |
| 13 | /* Only define this enum once. */ | |
| 14 | ||
| 15 | #ifndef ONCE_LTTNG_EXCEPTIONS_H | |
| 16 | #define ONCE_LTTNG_EXCEPTIONS_H | |
| 17 | ||
| 18 | enum { | |
| 19 | X86_PF_PROT = 1 << 0, | |
| 20 | X86_PF_WRITE = 1 << 1, | |
| 21 | X86_PF_USER = 1 << 2, | |
| 22 | X86_PF_RSVD = 1 << 3, | |
| 23 | X86_PF_INSTR = 1 << 4, | |
| 5f4c791e | 24 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0)) |
| 8c7f2a9f | 25 | X86_PF_PK = 1 << 5, |
| 5f4c791e | 26 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0)) */ |
| 8c7f2a9f FD |
27 | }; |
| 28 | ||
| 29 | #endif /* ONCE_LTTNG_EXCEPTIONS_H */ | |
| 30 | ||
| 5f4c791e | 31 | #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0)) */ |
| 2eb43df6 | 32 | #endif /* CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM */ |
| 8c7f2a9f | 33 | |
| da0f6c58 MD |
34 | #undef TRACE_SYSTEM |
| 35 | #define TRACE_SYSTEM x86_exceptions | |
| 36 | ||
| 2eb43df6 | 37 | #ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM |
| 8c7f2a9f FD |
38 | LTTNG_TRACEPOINT_ENUM(lttng_x86_pf_error_code, |
| 39 | TP_ENUM_VALUES( | |
| 40 | ctf_enum_value("PROTECTION_FAULT", X86_PF_PROT) | |
| 41 | ctf_enum_value("WRITE_ACCESS", X86_PF_WRITE) | |
| 42 | ctf_enum_value("USER_MODE", X86_PF_USER) | |
| 43 | ctf_enum_value("RESERVED_BIT", X86_PF_RSVD) | |
| 44 | ctf_enum_value("INSTRUCTION_FETCH", X86_PF_INSTR) | |
| 5f4c791e | 45 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0)) |
| 8c7f2a9f | 46 | ctf_enum_value("PROTECTION_KEYS_BLOCK", X86_PF_PK) |
| 5f4c791e | 47 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0)) */ |
| 8c7f2a9f FD |
48 | ) |
| 49 | ) | |
| 2eb43df6 | 50 | #endif /* CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM */ |
| 8c7f2a9f | 51 | |
| da0f6c58 MD |
52 | LTTNG_TRACEPOINT_EVENT_CLASS(x86_exceptions_class, |
| 53 | ||
| 54 | TP_PROTO(unsigned long address, struct pt_regs *regs, | |
| 55 | unsigned long error_code), | |
| 56 | ||
| 57 | TP_ARGS(address, regs, error_code), | |
| 58 | ||
| 59 | TP_FIELDS( | |
| 60 | ctf_integer_hex(unsigned long, address, address) | |
| 61 | ctf_integer_hex(unsigned long, ip, regs->ip) | |
| 62 | /* | |
| 63 | * Note: we cast error_code from unsigned long | |
| 64 | * to unsigned char to save space in the trace. | |
| 65 | * Currently, only 5 low bits are used. Should be made | |
| 66 | * larger if error codes are added to the kernel. | |
| 67 | */ | |
| 2eb43df6 | 68 | #ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM |
| 8c7f2a9f | 69 | ctf_enum(lttng_x86_pf_error_code, unsigned char, error_code, error_code) |
| 2eb43df6 MJ |
70 | #else |
| 71 | ctf_integer_hex(unsigned char, error_code, error_code) | |
| 72 | #endif | |
| da0f6c58 MD |
73 | ) |
| 74 | ) | |
| 75 | ||
| 76 | #define LTTNG_EXCEPTIONS_TRACEPOINT_EVENT_INSTANCE_MAP(name, map) \ | |
| 77 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(x86_exceptions_class, \ | |
| 78 | name, \ | |
| 79 | map, \ | |
| 80 | TP_PROTO(unsigned long address, struct pt_regs *regs, \ | |
| 81 | unsigned long error_code), \ | |
| 82 | TP_ARGS(address, regs, error_code) \ | |
| 83 | ) | |
| 84 | ||
| 85 | LTTNG_EXCEPTIONS_TRACEPOINT_EVENT_INSTANCE_MAP(page_fault_user, | |
| 86 | x86_exceptions_page_fault_user) | |
| 87 | LTTNG_EXCEPTIONS_TRACEPOINT_EVENT_INSTANCE_MAP(page_fault_kernel, | |
| 88 | x86_exceptions_page_fault_kernel) | |
| 89 | ||
| 90 | #endif /* LTTNG_TRACE_EXCEPTIONS_H */ | |
| 91 | ||
| 92 | #undef TRACE_INCLUDE_PATH | |
| 4f47ccf0 | 93 | #define TRACE_INCLUDE_PATH instrumentation/events/arch/x86 |
| da0f6c58 MD |
94 | #undef TRACE_INCLUDE_FILE |
| 95 | #define TRACE_INCLUDE_FILE exceptions | |
| 96 | ||
| 97 | /* This part must be outside protection */ | |
| 3b4aafcb | 98 | #include <lttng/define_trace.h> |