| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | /* |
| 3 | * Because linux/module.h has tracepoints in the header, and ftrace.h |
| 4 | * eventually includes this file, define_trace.h includes linux/module.h |
| 5 | * But we do not want the module.h to override the TRACE_SYSTEM macro |
| 6 | * variable that define_trace.h is processing, so we only set it |
| 7 | * when module events are being processed, which would happen when |
| 8 | * CREATE_TRACE_POINTS is defined. |
| 9 | */ |
| 10 | #ifdef CREATE_TRACE_POINTS |
| 11 | #undef TRACE_SYSTEM |
| 12 | #define TRACE_SYSTEM module |
| 13 | #endif |
| 14 | |
| 15 | #if !defined(LTTNG_TRACE_MODULE_H) || defined(TRACE_HEADER_MULTI_READ) |
| 16 | #define LTTNG_TRACE_MODULE_H |
| 17 | |
| 18 | #include <lttng/tracepoint-event.h> |
| 19 | #include <lttng/kernel-version.h> |
| 20 | #include <linux/kernel.h> |
| 21 | |
| 22 | #ifdef CONFIG_MODULES |
| 23 | |
| 24 | #ifndef _TRACE_MODULE_DEF |
| 25 | #define _TRACE_MODULE_DEF |
| 26 | struct module; |
| 27 | |
| 28 | #endif |
| 29 | |
| 30 | LTTNG_TRACEPOINT_ENUM(taint, |
| 31 | TP_ENUM_VALUES( |
| 32 | ctf_enum_value("PROPRIETARY_MODULE", 1UL << TAINT_PROPRIETARY_MODULE) |
| 33 | ctf_enum_value("FORCED_MODULE", 1UL << TAINT_FORCED_MODULE) |
| 34 | ctf_enum_value("CPU_OUT_OF_SPEC", 1UL << TAINT_CPU_OUT_OF_SPEC) |
| 35 | ctf_enum_value("FORCED_RMMOD", 1UL << TAINT_FORCED_RMMOD) |
| 36 | ctf_enum_value("MACHINE_CHECK", 1UL << TAINT_MACHINE_CHECK) |
| 37 | ctf_enum_value("BAD_PAGE", 1UL << TAINT_BAD_PAGE) |
| 38 | ctf_enum_value("USER", 1UL << TAINT_USER) |
| 39 | ctf_enum_value("DIE", 1UL << TAINT_DIE) |
| 40 | ctf_enum_value("OVERRIDDEN_ACPI_TABLE", 1UL << TAINT_OVERRIDDEN_ACPI_TABLE) |
| 41 | ctf_enum_value("WARN", 1UL << TAINT_WARN) |
| 42 | ctf_enum_value("CRAP", 1UL << TAINT_CRAP) |
| 43 | ctf_enum_value("FIRMWARE_WORKAROUND", 1UL << TAINT_FIRMWARE_WORKAROUND) |
| 44 | ctf_enum_value("OOT_MODULE", 1UL << TAINT_OOT_MODULE) |
| 45 | ctf_enum_value("UNSIGNED_MODULE", 1UL << TAINT_UNSIGNED_MODULE) |
| 46 | ctf_enum_value("SOFTLOCKUP", 1UL << TAINT_SOFTLOCKUP) |
| 47 | ctf_enum_value("LIVEPATCH", 1UL << TAINT_LIVEPATCH) |
| 48 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0)) |
| 49 | ctf_enum_value("AUX", 1UL << TAINT_AUX) |
| 50 | #endif |
| 51 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,17,0)) |
| 52 | ctf_enum_value("RANDSTRUCT", 1UL << TAINT_RANDSTRUCT) |
| 53 | #endif |
| 54 | ) |
| 55 | ) |
| 56 | |
| 57 | LTTNG_TRACEPOINT_EVENT(module_load, |
| 58 | |
| 59 | TP_PROTO(struct module *mod), |
| 60 | |
| 61 | TP_ARGS(mod), |
| 62 | |
| 63 | TP_FIELDS( |
| 64 | ctf_enum(taint, unsigned int, taints, mod->taints) |
| 65 | ctf_string(name, mod->name) |
| 66 | ) |
| 67 | ) |
| 68 | |
| 69 | LTTNG_TRACEPOINT_EVENT(module_free, |
| 70 | |
| 71 | TP_PROTO(struct module *mod), |
| 72 | |
| 73 | TP_ARGS(mod), |
| 74 | |
| 75 | TP_FIELDS( |
| 76 | ctf_string(name, mod->name) |
| 77 | ) |
| 78 | ) |
| 79 | |
| 80 | #ifdef CONFIG_MODULE_UNLOAD |
| 81 | /* trace_module_get/put are only used if CONFIG_MODULE_UNLOAD is defined */ |
| 82 | |
| 83 | LTTNG_TRACEPOINT_EVENT_CLASS(module_refcnt, |
| 84 | |
| 85 | TP_PROTO(struct module *mod, unsigned long ip), |
| 86 | |
| 87 | TP_ARGS(mod, ip), |
| 88 | |
| 89 | TP_FIELDS( |
| 90 | ctf_integer_hex(unsigned long, ip, ip) |
| 91 | ctf_integer(int, refcnt, atomic_read(&mod->refcnt)) |
| 92 | ctf_string(name, mod->name) |
| 93 | ) |
| 94 | ) |
| 95 | |
| 96 | LTTNG_TRACEPOINT_EVENT_INSTANCE(module_refcnt, module_get, |
| 97 | |
| 98 | TP_PROTO(struct module *mod, unsigned long ip), |
| 99 | |
| 100 | TP_ARGS(mod, ip) |
| 101 | ) |
| 102 | |
| 103 | LTTNG_TRACEPOINT_EVENT_INSTANCE(module_refcnt, module_put, |
| 104 | |
| 105 | TP_PROTO(struct module *mod, unsigned long ip), |
| 106 | |
| 107 | TP_ARGS(mod, ip) |
| 108 | ) |
| 109 | #endif /* CONFIG_MODULE_UNLOAD */ |
| 110 | |
| 111 | LTTNG_TRACEPOINT_EVENT(module_request, |
| 112 | |
| 113 | TP_PROTO(char *name, bool wait, unsigned long ip), |
| 114 | |
| 115 | TP_ARGS(name, wait, ip), |
| 116 | |
| 117 | TP_FIELDS( |
| 118 | ctf_integer_hex(unsigned long, ip, ip) |
| 119 | ctf_integer(bool, wait, wait) |
| 120 | ctf_string(name, name) |
| 121 | ) |
| 122 | ) |
| 123 | |
| 124 | #endif /* CONFIG_MODULES */ |
| 125 | |
| 126 | #endif /* LTTNG_TRACE_MODULE_H */ |
| 127 | |
| 128 | /* This part must be outside protection */ |
| 129 | #include <lttng/define_trace.h> |