1 /* SPDX-License-Identifier: GPL-2.0-only */
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.
10 #ifdef CREATE_TRACE_POINTS
12 #define TRACE_SYSTEM module
15 #if !defined(LTTNG_TRACE_MODULE_H) || defined(TRACE_HEADER_MULTI_READ)
16 #define LTTNG_TRACE_MODULE_H
18 #include <lttng/tracepoint-event.h>
19 #include <linux/version.h>
20 #include <linux/kernel.h>
24 #ifndef _TRACE_MODULE_DEF
25 #define _TRACE_MODULE_DEF
30 LTTNG_TRACEPOINT_ENUM(taint
,
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 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
45 ctf_enum_value("OOT_MODULE", 1UL << TAINT_OOT_MODULE
)
47 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,15,0))
48 ctf_enum_value("UNSIGNED_MODULE", 1UL << TAINT_UNSIGNED_MODULE
)
50 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,17,0))
51 ctf_enum_value("SOFTLOCKUP", 1UL << TAINT_SOFTLOCKUP
)
53 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
54 ctf_enum_value("LIVEPATCH", 1UL << TAINT_LIVEPATCH
)
56 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,15,0))
57 ctf_enum_value("AUX", 1UL << TAINT_AUX
)
59 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,17,0))
60 ctf_enum_value("RANDSTRUCT", 1UL << TAINT_RANDSTRUCT
)
65 LTTNG_TRACEPOINT_EVENT(module_load
,
67 TP_PROTO(struct module
*mod
),
72 ctf_enum(taint
, unsigned int, taints
, mod
->taints
)
73 ctf_string(name
, mod
->name
)
77 LTTNG_TRACEPOINT_EVENT(module_free
,
79 TP_PROTO(struct module
*mod
),
84 ctf_string(name
, mod
->name
)
88 #ifdef CONFIG_MODULE_UNLOAD
89 /* trace_module_get/put are only used if CONFIG_MODULE_UNLOAD is defined */
91 LTTNG_TRACEPOINT_EVENT_CLASS(module_refcnt
,
93 TP_PROTO(struct module
*mod
, unsigned long ip
),
98 ctf_integer_hex(unsigned long, ip
, ip
)
99 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0))
100 ctf_integer(int, refcnt
, atomic_read(&mod
->refcnt
))
102 ctf_integer(int, refcnt
, __this_cpu_read(mod
->refptr
->incs
) + __this_cpu_read(mod
->refptr
->decs
))
104 ctf_string(name
, mod
->name
)
108 LTTNG_TRACEPOINT_EVENT_INSTANCE(module_refcnt
, module_get
,
110 TP_PROTO(struct module
*mod
, unsigned long ip
),
115 LTTNG_TRACEPOINT_EVENT_INSTANCE(module_refcnt
, module_put
,
117 TP_PROTO(struct module
*mod
, unsigned long ip
),
121 #endif /* CONFIG_MODULE_UNLOAD */
123 LTTNG_TRACEPOINT_EVENT(module_request
,
125 TP_PROTO(char *name
, bool wait
, unsigned long ip
),
127 TP_ARGS(name
, wait
, ip
),
130 ctf_integer_hex(unsigned long, ip
, ip
)
131 ctf_integer(bool, wait
, wait
)
132 ctf_string(name
, name
)
136 #endif /* CONFIG_MODULES */
138 #endif /* LTTNG_TRACE_MODULE_H */
140 /* This part must be outside protection */
141 #include <lttng/define_trace.h>