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Split syscall tracepoint generation in their own files
[lttng-modules.git] / src / lttng-syscalls.c
diff --git a/src/lttng-syscalls.c b/src/lttng-syscalls.c
index 2b469cb5b1c3fbb59a967b53e8a0d5fd6938a6f2..6b52b69bbf7dd2c3d0f50e2dfaa6b2f2d96a160f 100644 (file)
--- a/src/lttng-syscalls.c
+++ b/src/lttng-syscalls.c
@@ -62,15 +62,11 @@ enum sc_type {
 #define SYSCALL_EXIT_STR               __stringify(SYSCALL_EXIT_TOK)
 #define COMPAT_SYSCALL_EXIT_STR                __stringify(COMPAT_SYSCALL_EXIT_TOK)
 
-static
 void syscall_entry_event_probe(void *__data, struct pt_regs *regs, long id);
-static
 void syscall_exit_event_probe(void *__data, struct pt_regs *regs, long ret);
 
-static
 void syscall_entry_event_notifier_probe(void *__data, struct pt_regs *regs,
                long id);
-static
 void syscall_exit_event_notifier_probe(void *__data, struct pt_regs *regs,
                long ret);
 
@@ -120,275 +116,15 @@ typedef __kernel_old_time_t time_t;
 #include <instrumentation/syscalls/headers/syscalls_unknown.h>
 #undef TRACE_SYSTEM
 
-#define SC_ENTER
-
-#undef sc_exit
-#define sc_exit(...)
-#undef sc_in
-#define sc_in(...)     __VA_ARGS__
-#undef sc_out
-#define sc_out(...)
-#undef sc_inout
-#define sc_inout(...)  __VA_ARGS__
-
-/* Hijack probe callback for system call enter */
-#undef TP_PROBE_CB
-#define TP_PROBE_CB(_template)         &syscall_entry_event_probe
-#define SC_LTTNG_TRACEPOINT_EVENT(_name, _proto, _args, _fields) \
-       LTTNG_TRACEPOINT_EVENT(syscall_entry_##_name, PARAMS(_proto), PARAMS(_args), \
-               PARAMS(_fields))
-#define SC_LTTNG_TRACEPOINT_EVENT_CODE(_name, _proto, _args, _locvar, _code_pre, _fields, _code_post) \
-       LTTNG_TRACEPOINT_EVENT_CODE(syscall_entry_##_name, PARAMS(_proto), PARAMS(_args), \
-               PARAMS(_locvar), PARAMS(_code_pre),                             \
-               PARAMS(_fields), PARAMS(_code_post))
-#define SC_LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS(_name, _fields) \
-       LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS(syscall_entry_##_name, PARAMS(_fields))
-#define SC_LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS(_template, _name)            \
-       LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS(syscall_entry_##_template, syscall_entry_##_name)
-/* Enumerations only defined at first inclusion. */
-#define SC_LTTNG_TRACEPOINT_ENUM(_name, _values) \
-       LTTNG_TRACEPOINT_ENUM(_name, PARAMS(_values))
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM syscall_entry_integers
-#define TRACE_INCLUDE_FILE syscalls_integers
-#include <instrumentation/syscalls/headers/syscalls_integers.h>
-#undef TRACE_INCLUDE_FILE
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM syscall_entry_pointers
-#define TRACE_INCLUDE_FILE syscalls_pointers
-#include <instrumentation/syscalls/headers/syscalls_pointers.h>
-#undef TRACE_INCLUDE_FILE
-#undef TRACE_SYSTEM
-#undef SC_LTTNG_TRACEPOINT_ENUM
-#undef SC_LTTNG_TRACEPOINT_EVENT_CODE
-#undef SC_LTTNG_TRACEPOINT_EVENT
-#undef SC_LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS
-#undef SC_LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS
-#undef TP_PROBE_CB
-#undef _TRACE_SYSCALLS_INTEGERS_H
-#undef _TRACE_SYSCALLS_POINTERS_H
-
-/* Hijack probe callback for compat system call enter */
-#define TP_PROBE_CB(_template)         &syscall_entry_event_probe
-#define LTTNG_SC_COMPAT
-#define SC_LTTNG_TRACEPOINT_EVENT(_name, _proto, _args, _fields) \
-       LTTNG_TRACEPOINT_EVENT(compat_syscall_entry_##_name, PARAMS(_proto), PARAMS(_args), \
-               PARAMS(_fields))
-#define SC_LTTNG_TRACEPOINT_EVENT_CODE(_name, _proto, _args, _locvar, _code_pre, _fields, _code_post) \
-       LTTNG_TRACEPOINT_EVENT_CODE(compat_syscall_entry_##_name, PARAMS(_proto), PARAMS(_args), \
-               PARAMS(_locvar), PARAMS(_code_pre), PARAMS(_fields), PARAMS(_code_post))
-#define SC_LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS(_name, _fields) \
-       LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS(compat_syscall_entry_##_name, PARAMS(_fields))
-#define SC_LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS(_template, _name)            \
-       LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS(compat_syscall_entry_##_template, \
-               compat_syscall_entry_##_name)
-/* Enumerations only defined at inital inclusion (not here). */
-#define SC_LTTNG_TRACEPOINT_ENUM(_name, _values)
-#define TRACE_SYSTEM compat_syscall_entry_integers
-#define TRACE_INCLUDE_FILE compat_syscalls_integers
-#include <instrumentation/syscalls/headers/compat_syscalls_integers.h>
-#undef TRACE_INCLUDE_FILE
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM compat_syscall_entry_pointers
-#define TRACE_INCLUDE_FILE compat_syscalls_pointers
-#include <instrumentation/syscalls/headers/compat_syscalls_pointers.h>
-#undef TRACE_INCLUDE_FILE
-#undef TRACE_SYSTEM
-#undef SC_LTTNG_TRACEPOINT_ENUM
-#undef SC_LTTNG_TRACEPOINT_EVENT_CODE
-#undef SC_LTTNG_TRACEPOINT_EVENT
-#undef SC_LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS
-#undef SC_LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS
-#undef TP_PROBE_CB
-#undef _TRACE_SYSCALLS_INTEGERS_H
-#undef _TRACE_SYSCALLS_POINTERS_H
-#undef LTTNG_SC_COMPAT
-
-#undef SC_ENTER
-
-#define SC_EXIT
-
-#undef sc_exit
-#define sc_exit(...)           __VA_ARGS__
-#undef sc_in
-#define sc_in(...)
-#undef sc_out
-#define sc_out(...)            __VA_ARGS__
-#undef sc_inout
-#define sc_inout(...)          __VA_ARGS__
-
-/* Hijack probe callback for system call exit */
-#define TP_PROBE_CB(_template)         &syscall_exit_event_probe
-#define SC_LTTNG_TRACEPOINT_EVENT(_name, _proto, _args, _fields) \
-       LTTNG_TRACEPOINT_EVENT(syscall_exit_##_name, PARAMS(_proto), PARAMS(_args), \
-               PARAMS(_fields))
-#define SC_LTTNG_TRACEPOINT_EVENT_CODE(_name, _proto, _args, _locvar, _code_pre, _fields, _code_post) \
-       LTTNG_TRACEPOINT_EVENT_CODE(syscall_exit_##_name, PARAMS(_proto), PARAMS(_args), \
-               PARAMS(_locvar), PARAMS(_code_pre), PARAMS(_fields), PARAMS(_code_post))
-#define SC_LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS(_name, _fields) \
-       LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS(syscall_exit_##_name, PARAMS(_fields))
-#define SC_LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS(_template, _name)            \
-       LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS(syscall_exit_##_template,        \
-               syscall_exit_##_name)
-/* Enumerations only defined at inital inclusion (not here). */
-#define SC_LTTNG_TRACEPOINT_ENUM(_name, _values)
-#define TRACE_SYSTEM syscall_exit_integers
-#define TRACE_INCLUDE_FILE syscalls_integers
-#include <instrumentation/syscalls/headers/syscalls_integers.h>
-#undef TRACE_INCLUDE_FILE
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM syscall_exit_pointers
-#define TRACE_INCLUDE_FILE syscalls_pointers
-#include <instrumentation/syscalls/headers/syscalls_pointers.h>
-#undef TRACE_INCLUDE_FILE
-#undef TRACE_SYSTEM
-#undef SC_LTTNG_TRACEPOINT_ENUM
-#undef SC_LTTNG_TRACEPOINT_EVENT_CODE
-#undef SC_LTTNG_TRACEPOINT_EVENT
-#undef SC_LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS
-#undef SC_LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS
-#undef TP_PROBE_CB
-#undef _TRACE_SYSCALLS_INTEGERS_H
-#undef _TRACE_SYSCALLS_POINTERS_H
-
-
-/* Hijack probe callback for compat system call exit */
-#define TP_PROBE_CB(_template)         &syscall_exit_event_probe
-#define LTTNG_SC_COMPAT
-#define SC_LTTNG_TRACEPOINT_EVENT(_name, _proto, _args, _fields) \
-       LTTNG_TRACEPOINT_EVENT(compat_syscall_exit_##_name, PARAMS(_proto), PARAMS(_args), \
-               PARAMS(_fields))
-#define SC_LTTNG_TRACEPOINT_EVENT_CODE(_name, _proto, _args, _locvar, _code_pre, _fields, _code_post) \
-       LTTNG_TRACEPOINT_EVENT_CODE(compat_syscall_exit_##_name, PARAMS(_proto), PARAMS(_args), \
-               PARAMS(_locvar), PARAMS(_code_pre), PARAMS(_fields), PARAMS(_code_post))
-#define SC_LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS(_name, _fields) \
-       LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS(compat_syscall_exit_##_name, PARAMS(_fields))
-#define SC_LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS(_template, _name)            \
-       LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS(compat_syscall_exit_##_template, \
-               compat_syscall_exit_##_name)
-/* Enumerations only defined at inital inclusion (not here). */
-#define SC_LTTNG_TRACEPOINT_ENUM(_name, _values)
-#define TRACE_SYSTEM compat_syscall_exit_integers
-#define TRACE_INCLUDE_FILE compat_syscalls_integers
-#include <instrumentation/syscalls/headers/compat_syscalls_integers.h>
-#undef TRACE_INCLUDE_FILE
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM compat_syscall_exit_pointers
-#define TRACE_INCLUDE_FILE compat_syscalls_pointers
-#include <instrumentation/syscalls/headers/compat_syscalls_pointers.h>
-#undef TRACE_INCLUDE_FILE
-#undef TRACE_SYSTEM
-#undef SC_LTTNG_TRACEPOINT_ENUM
-#undef SC_LTTNG_TRACEPOINT_EVENT_CODE
-#undef SC_LTTNG_TRACEPOINT_EVENT
-#undef SC_LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS
-#undef SC_LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS
 #undef TP_PROBE_CB
-#undef _TRACE_SYSCALLS_INTEGERS_H
-#undef _TRACE_SYSCALLS_POINTERS_H
-#undef LTTNG_SC_COMPAT
-
-#undef SC_EXIT
-
-#undef TP_MODULE_NOINIT
-#undef LTTNG_PACKAGE_BUILD
-#undef CREATE_TRACE_POINTS
-
-#define CREATE_SYSCALL_TABLE
-
-#define SC_ENTER
 
-#undef sc_exit
-#define sc_exit(...)
-
-#undef TRACE_SYSCALL_TABLE
-#define TRACE_SYSCALL_TABLE(_template, _name, _nr, _nrargs)    \
-       [ _nr ] = {                                             \
-               .event_func = __event_probe__syscall_entry_##_template, \
-               .nrargs = (_nrargs),                            \
-               .fields = __event_fields___syscall_entry_##_template, \
-               .desc = &__event_desc___syscall_entry_##_name,  \
-       },
-
-/* Event syscall enter tracing table */
-static const struct trace_syscall_entry _sc_table[] = {
-#include <instrumentation/syscalls/headers/syscalls_integers.h>
-#include <instrumentation/syscalls/headers/syscalls_pointers.h>
-};
-
-
-const struct trace_syscall_table sc_table = {
-       .table = _sc_table,
-       .len = ARRAY_SIZE(_sc_table),
-};
-
-#undef TRACE_SYSCALL_TABLE
-#define TRACE_SYSCALL_TABLE(_template, _name, _nr, _nrargs)    \
-       [ _nr ] = {                                             \
-               .event_func = __event_probe__compat_syscall_entry_##_template, \
-               .nrargs = (_nrargs),                            \
-               .fields = __event_fields___compat_syscall_entry_##_template, \
-               .desc = &__event_desc___compat_syscall_entry_##_name, \
-       },
-
-/* Event compat syscall enter table */
-const struct trace_syscall_entry _compat_sc_table[] = {
-#include <instrumentation/syscalls/headers/compat_syscalls_integers.h>
-#include <instrumentation/syscalls/headers/compat_syscalls_pointers.h>
-};
-
-const struct trace_syscall_table compat_sc_table = {
-       .table = _compat_sc_table,
-       .len = ARRAY_SIZE(_compat_sc_table),
-};
-
-#undef SC_ENTER
-
-#define SC_EXIT
-
-#undef sc_exit
-#define sc_exit(...)           __VA_ARGS__
-
-#undef TRACE_SYSCALL_TABLE
-#define TRACE_SYSCALL_TABLE(_template, _name, _nr, _nrargs)    \
-       [ _nr ] = {                                             \
-               .event_func = __event_probe__syscall_exit_##_template, \
-               .nrargs = (_nrargs),                            \
-               .fields = __event_fields___syscall_exit_##_template, \
-               .desc = &__event_desc___syscall_exit_##_name, \
-       },
+extern const struct trace_syscall_table sc_table;
+extern const struct trace_syscall_table compat_sc_table;
 
 /* Event syscall exit table */
-static const struct trace_syscall_entry _sc_exit_table[] = {
-#include <instrumentation/syscalls/headers/syscalls_integers.h>
-#include <instrumentation/syscalls/headers/syscalls_pointers.h>
-};
-
-const struct trace_syscall_table sc_exit_table = {
-       .table = _sc_exit_table,
-       .len = ARRAY_SIZE(_sc_exit_table),
-};
-
+extern const struct trace_syscall_table sc_exit_table;
+extern const struct trace_syscall_table compat_sc_exit_table;
 
-#undef TRACE_SYSCALL_TABLE
-#define TRACE_SYSCALL_TABLE(_template, _name, _nr, _nrargs)    \
-       [ _nr ] = {                                             \
-               .event_func = __event_probe__compat_syscall_exit_##_template, \
-               .nrargs = (_nrargs),                            \
-               .fields = __event_fields___compat_syscall_exit_##_template, \
-               .desc = &__event_desc___compat_syscall_exit_##_name, \
-       },
-
-/* Event compat syscall exit table */
-const struct trace_syscall_entry _compat_sc_exit_table[] = {
-#include <instrumentation/syscalls/headers/compat_syscalls_integers.h>
-#include <instrumentation/syscalls/headers/compat_syscalls_pointers.h>
-};
-
-const struct trace_syscall_table compat_sc_exit_table = {
-       .table = _compat_sc_exit_table,
-       .len = ARRAY_SIZE(_compat_sc_exit_table),
-};
 
 #undef SC_EXIT
 
@@ -810,7 +546,6 @@ void syscall_exit_event_probe(void *__data, struct pt_regs *regs, long ret)
                               regs, ret);
 }
 
-static
 void syscall_exit_event_notifier_probe(void *__data, struct pt_regs *regs,
                long ret)
 {
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