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> |
| da0f6c58 MD |
6 | #include <linux/version.h> |
| 7 | ||
| 8c7f2a9f FD |
8 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,15,0)) |
| 9 | #include <../arch/x86/include/asm/traps.h> | |
| 10 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,15,0)) */ | |
| 11 | ||
| 12 | /* Only define this enum once. */ | |
| 13 | ||
| 14 | #ifndef ONCE_LTTNG_EXCEPTIONS_H | |
| 15 | #define ONCE_LTTNG_EXCEPTIONS_H | |
| 16 | ||
| 17 | enum { | |
| 18 | X86_PF_PROT = 1 << 0, | |
| 19 | X86_PF_WRITE = 1 << 1, | |
| 20 | X86_PF_USER = 1 << 2, | |
| 21 | X86_PF_RSVD = 1 << 3, | |
| 22 | X86_PF_INSTR = 1 << 4, | |
| 23 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,6,0)) | |
| 24 | X86_PF_PK = 1 << 5, | |
| 25 | #endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,6,0)) */ | |
| 26 | }; | |
| 27 | ||
| 28 | #endif /* ONCE_LTTNG_EXCEPTIONS_H */ | |
| 29 | ||
| 30 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,15,0)) */ | |
| 31 | ||
| da0f6c58 MD |
32 | #undef TRACE_SYSTEM |
| 33 | #define TRACE_SYSTEM x86_exceptions | |
| 34 | ||
| 8c7f2a9f FD |
35 | LTTNG_TRACEPOINT_ENUM(lttng_x86_pf_error_code, |
| 36 | TP_ENUM_VALUES( | |
| 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 (LINUX_VERSION_CODE >= KERNEL_VERSION(4,6,0)) | |
| 43 | ctf_enum_value("PROTECTION_KEYS_BLOCK", X86_PF_PK) | |
| 44 | #endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,6,0)) */ | |
| 45 | ) | |
| 46 | ) | |
| 47 | ||
| da0f6c58 MD |
48 | LTTNG_TRACEPOINT_EVENT_CLASS(x86_exceptions_class, |
| 49 | ||
| 50 | TP_PROTO(unsigned long address, struct pt_regs *regs, | |
| 51 | unsigned long error_code), | |
| 52 | ||
| 53 | TP_ARGS(address, regs, error_code), | |
| 54 | ||
| 55 | TP_FIELDS( | |
| 56 | ctf_integer_hex(unsigned long, address, address) | |
| 57 | ctf_integer_hex(unsigned long, ip, regs->ip) | |
| 58 | /* | |
| 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. | |
| 63 | */ | |
| 8c7f2a9f | 64 | ctf_enum(lttng_x86_pf_error_code, unsigned char, error_code, error_code) |
| da0f6c58 MD |
65 | ) |
| 66 | ) | |
| 67 | ||
| 68 | #define LTTNG_EXCEPTIONS_TRACEPOINT_EVENT_INSTANCE_MAP(name, map) \ | |
| 69 | LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(x86_exceptions_class, \ | |
| 70 | name, \ | |
| 71 | map, \ | |
| 72 | TP_PROTO(unsigned long address, struct pt_regs *regs, \ | |
| 73 | unsigned long error_code), \ | |
| 74 | TP_ARGS(address, regs, error_code) \ | |
| 75 | ) | |
| 76 | ||
| 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) | |
| 81 | ||
| 82 | #endif /* LTTNG_TRACE_EXCEPTIONS_H */ | |
| 83 | ||
| 84 | #undef TRACE_INCLUDE_PATH | |
| 4f47ccf0 | 85 | #define TRACE_INCLUDE_PATH instrumentation/events/arch/x86 |
| da0f6c58 MD |
86 | #undef TRACE_INCLUDE_FILE |
| 87 | #define TRACE_INCLUDE_FILE exceptions | |
| 88 | ||
| 89 | /* This part must be outside protection */ | |
| 3b4aafcb | 90 | #include <lttng/define_trace.h> |