1 /* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only) */
3 #include <linux/fcntl.h>
4 #include <linux/mman.h>
6 #ifndef CREATE_SYSCALL_TABLE
9 * The `flags` argument of the mmap syscall is split in two parts:
10 * - The type of mapping is described by the four least significant bits of the 4
12 * - The options on the mapping are described by the remaining 28 most
15 #define MAPPING_TYPE_RESERVED_BITS 4
16 #define LTTNG_MMAP_FLAGS_TO_CTF(x) ((x) >> MAPPING_TYPE_RESERVED_BITS)
19 * Enumeration of the mmap flags, as described in the 'mmap'
20 * system call man page.
22 SC_LTTNG_TRACEPOINT_ENUM(lttng_mmap_protection
,
24 ctf_enum_value("PROT_EXEC", PROT_EXEC
)
25 ctf_enum_value("PROT_READ", PROT_READ
)
26 ctf_enum_value("PROT_WRITE", PROT_WRITE
)
27 ctf_enum_value("PROT_NONE", PROT_NONE
)
31 SC_LTTNG_TRACEPOINT_ENUM(lttng_mmap_flags_mapping_type
,
33 ctf_enum_value("MAP_SHARED", MAP_SHARED
)
34 ctf_enum_value("MAP_PRIVATE", MAP_PRIVATE
)
35 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0))
36 ctf_enum_value("MAP_SHARED_VALIDATE", MAP_SHARED_VALIDATE
)
37 #endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0)) */
42 * Shift the values of the options so we can read them from the `flags` integer
45 SC_LTTNG_TRACEPOINT_ENUM(lttng_mmap_flags_options
,
47 ctf_enum_value("<none>", 0)
49 #if defined (MAP_32BIT) && MAP_32BIT != 0
50 ctf_enum_value("MAP_32BIT", LTTNG_MMAP_FLAGS_TO_CTF(MAP_32BIT
))
51 #endif /* defined (MAP_32BIT) && MAP_32BIT != 0 */
53 ctf_enum_value("MAP_ANONYMOUS", LTTNG_MMAP_FLAGS_TO_CTF(MAP_ANONYMOUS
))
54 ctf_enum_value("MAP_DENYWRITE", LTTNG_MMAP_FLAGS_TO_CTF(MAP_DENYWRITE
))
55 ctf_enum_value("MAP_EXECUTABLE", LTTNG_MMAP_FLAGS_TO_CTF(MAP_EXECUTABLE
))
56 ctf_enum_value("MAP_FIXED", LTTNG_MMAP_FLAGS_TO_CTF(MAP_FIXED
))
58 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,17,0))
59 ctf_enum_value("MAP_FIXED_NOREPLACE", LTTNG_MMAP_FLAGS_TO_CTF(MAP_FIXED_NOREPLACE
))
60 #endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,17,0)) */
62 ctf_enum_value("MAP_GROWSDOWN", LTTNG_MMAP_FLAGS_TO_CTF(MAP_GROWSDOWN
))
63 ctf_enum_value("MAP_HUGETLB", LTTNG_MMAP_FLAGS_TO_CTF(MAP_HUGETLB
))
65 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
67 #if defined (MAP_HUGE_2MB) && MAP_HUGE_2MB != 0
68 ctf_enum_value("MAP_HUGE_2MB", LTTNG_MMAP_FLAGS_TO_CTF(MAP_HUGE_2MB
))
69 #endif /* defined (MAP_HUGE_2MB) && MAP_HUGE_2MB != 0 */
71 #if defined (MAP_HUGE_1GB) && MAP_HUGE_1GB != 0
72 ctf_enum_value("MAP_HUGE_1GB", LTTNG_MMAP_FLAGS_TO_CTF(MAP_HUGE_1GB
))
73 #endif /* defined (MAP_HUGE_1GB) && MAP_HUGE_1GB != 0 */
75 #endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) */
77 ctf_enum_value("MAP_LOCKED", LTTNG_MMAP_FLAGS_TO_CTF(MAP_LOCKED
))
78 ctf_enum_value("MAP_NONBLOCK", LTTNG_MMAP_FLAGS_TO_CTF(MAP_NONBLOCK
))
79 ctf_enum_value("MAP_NORESERVE", LTTNG_MMAP_FLAGS_TO_CTF(MAP_NORESERVE
))
80 ctf_enum_value("MAP_POPULATE", LTTNG_MMAP_FLAGS_TO_CTF(MAP_POPULATE
))
81 ctf_enum_value("MAP_STACK", LTTNG_MMAP_FLAGS_TO_CTF(MAP_STACK
))
83 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0))
84 ctf_enum_value("MAP_SYNC", LTTNG_MMAP_FLAGS_TO_CTF(MAP_SYNC
))
85 #endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0)) */
87 #if defined (MAP_UNINITIALIZED) && MAP_UNINITIALIZED != 0
88 ctf_enum_value("MAP_UNINITIALIZED", LTTNG_MMAP_FLAGS_TO_CTF(MAP_UNINITIALIZED
))
89 #endif /* defined (MAP_UNINITIALIZED) && MAP_UNINITIALIZED != 0 */
93 #define LTTNG_MMAP_FLAGS_TYPE \
94 lttng_kernel_static_event_field("type", \
95 lttng_kernel_static_type_enum(&__enum_lttng_mmap_flags_mapping_type, \
96 lttng_kernel_static_type_integer(4, 1, 0, __BYTE_ORDER, 16)), \
99 #define LTTNG_MMAP_FLAGS_OPTIONS \
100 lttng_kernel_static_event_field("options", \
101 lttng_kernel_static_type_enum(&__enum_lttng_mmap_flags_options, \
102 lttng_kernel_static_type_integer(28, 1, 0, __BYTE_ORDER, 16)), \
105 #if (__BYTE_ORDER == __LITTLE_ENDIAN)
106 #define LTTNG_MMAP_FLAGS \
107 lttng_kernel_static_event_field_array( \
108 [0] = LTTNG_MMAP_FLAGS_TYPE, \
109 [1] = LTTNG_MMAP_FLAGS_OPTIONS, \
112 #define LTTNG_MMAP_FLAGS \
113 lttng_kernel_static_event_field_array( \
114 [0] = LTTNG_MMAP_FLAGS_OPTIONS, \
115 [1] = LTTNG_MMAP_FLAGS_TYPE, \
120 * Use a custom field here so that tracer writes a single integer and the
121 * work of splitting it up in two fields is left to the trace reader.
123 #define OVERRIDE_32_mmap
124 #define OVERRIDE_64_mmap
125 SC_LTTNG_TRACEPOINT_EVENT(mmap
,
126 TP_PROTO(sc_exit(unsigned long ret
,)
127 unsigned long addr
, unsigned long len
,
128 unsigned long prot
, unsigned long flags
,
129 unsigned long fd
, unsigned long off
),
130 TP_ARGS(sc_exit(ret
,) addr
, len
, prot
, flags
, fd
, off
),
131 TP_FIELDS(sc_exit(ctf_integer_hex(unsigned long, ret
, ret
))
132 sc_in(ctf_integer_hex(unsigned long, addr
, addr
))
133 sc_in(ctf_integer(size_t, len
, len
))
134 sc_in(ctf_enum(lttng_mmap_protection
, int, prot
, prot
))
138 lttng_kernel_static_type_struct(2, LTTNG_MMAP_FLAGS
, lttng_alignof(uint32_t) * CHAR_BIT
)
142 ctf_integer_type(uint32_t, flags
)
146 sc_in(ctf_integer(int, fd
, fd
))
147 sc_in(ctf_integer(off_t
, offset
, off
))
152 * Enumeration of the open flags, as described in the 'open'
153 * system call man page.
155 SC_LTTNG_TRACEPOINT_ENUM(lttng_fcntl_cmd_flags
,
157 ctf_enum_value("F_DUPFD", F_DUPFD
)
158 ctf_enum_value("F_GETFD", F_GETFD
)
159 ctf_enum_value("F_SETFD", F_SETFD
)
160 ctf_enum_value("F_GETFL", F_GETFL
)
161 ctf_enum_value("F_SETFL", F_SETFL
)
162 ctf_enum_value("F_GETLK", F_GETLK
)
163 ctf_enum_value("F_SETLK", F_SETLK
)
164 ctf_enum_value("F_SETLKW", F_SETLKW
)
165 ctf_enum_value("F_SETOWN", F_SETOWN
)
166 ctf_enum_value("F_GETOWN", F_GETOWN
)
167 ctf_enum_value("F_SETSIG", F_SETSIG
)
168 ctf_enum_value("F_GETSIG", F_GETSIG
)
169 #if !defined(CONFIG_64BIT) || defined(CONFIG_COMPAT)
170 ctf_enum_value("F_GETLK64", F_GETLK64
)
171 ctf_enum_value("F_SETLK64", F_SETLK64
)
172 ctf_enum_value("F_SETLKW64", F_SETLKW64
)
173 #endif /* #if !defined(CONFIG_64BIT) || defined(CONFIG_COMPAT) */
174 ctf_enum_value("F_SETOWN_EX", F_SETOWN_EX
)
175 ctf_enum_value("F_GETOWN_EX", F_GETOWN_EX
)
176 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,6,0))
177 ctf_enum_value("F_GETOWNER_UIDS", F_GETOWNER_UIDS
)
178 #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,6,0)) */
179 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,15,0))
180 ctf_enum_value("F_OFD_GETLK", F_OFD_GETLK
)
181 ctf_enum_value("F_OFD_SETLK", F_OFD_SETLK
)
182 ctf_enum_value("F_OFD_SETLKW", F_OFD_SETLKW
)
183 #endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,15,0)) */
184 ctf_enum_value("F_SETLEASE", F_SETLEASE
)
185 ctf_enum_value("F_GETLEASE", F_GETLEASE
)
186 ctf_enum_value("F_NOTIFY", F_NOTIFY
)
187 ctf_enum_value("F_CANCELLK", F_CANCELLK
)
188 ctf_enum_value("F_DUPFD_CLOEXEC", F_DUPFD_CLOEXEC
)
189 ctf_enum_value("F_SETPIPE_SZ", F_SETPIPE_SZ
)
190 ctf_enum_value("F_GETPIPE_SZ", F_GETPIPE_SZ
)
191 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,17,0))
192 ctf_enum_value("F_ADD_SEALS", F_ADD_SEALS
)
193 ctf_enum_value("F_GET_SEALS", F_GET_SEALS
)
194 #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,17,0)) */
195 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,14,0))
196 ctf_enum_value("F_GET_RW_HINT", F_GET_RW_HINT
)
197 ctf_enum_value("F_SET_RW_HINT", F_SET_RW_HINT
)
198 ctf_enum_value("F_GET_FILE_RW_HINT", F_GET_FILE_RW_HINT
)
199 ctf_enum_value("F_SET_FILE_RW_HINT", F_SET_FILE_RW_HINT
)
200 #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,14,0)) */
204 #define OVERRIDE_32_fcntl
205 #define OVERRIDE_64_fcntl
206 SC_LTTNG_TRACEPOINT_EVENT(fcntl
,
207 TP_PROTO(sc_exit(long ret
,) unsigned int fd
, unsigned int cmd
, unsigned long arg
),
208 TP_ARGS(sc_exit(ret
,) fd
, cmd
, arg
),
210 sc_exit(ctf_integer(long, ret
, ret
))
211 sc_in(ctf_integer(unsigned int, fd
, fd
))
212 sc_in(ctf_enum(lttng_fcntl_cmd_flags
, unsigned int, cmd
, cmd
))
213 sc_inout(ctf_integer(unsigned long, arg
, arg
)))
216 #endif /* CREATE_SYSCALL_TABLE */