| 1 | /* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only) */ |
| 2 | |
| 3 | #ifndef CREATE_SYSCALL_TABLE |
| 4 | |
| 5 | /* |
| 6 | * The `flags` argument of the mmap syscall is split in two parts: |
| 7 | * - The type of mapping is described by the four least significant bits of the 4 |
| 8 | * bytes integer, |
| 9 | * - The options on the mapping are described by the remaining 28 most |
| 10 | * significant bits. |
| 11 | */ |
| 12 | #define MAPPING_TYPE_RESERVED_BITS 4 |
| 13 | #define LTTNG_MMAP_FLAGS_TO_CTF(x) ((x) >> MAPPING_TYPE_RESERVED_BITS) |
| 14 | |
| 15 | /* |
| 16 | * Enumeration of the mmap flags, as described in the 'mmap' |
| 17 | * system call man page. |
| 18 | */ |
| 19 | SC_LTTNG_TRACEPOINT_ENUM(lttng_mmap_protection, |
| 20 | TP_ENUM_VALUES( |
| 21 | ctf_enum_value("PROT_EXEC", PROT_EXEC) |
| 22 | ctf_enum_value("PROT_READ", PROT_READ) |
| 23 | ctf_enum_value("PROT_WRITE", PROT_WRITE) |
| 24 | ctf_enum_value("PROT_NONE", PROT_NONE) |
| 25 | ) |
| 26 | ) |
| 27 | |
| 28 | SC_LTTNG_TRACEPOINT_ENUM(lttng_mmap_flags_mapping_type, |
| 29 | TP_ENUM_VALUES( |
| 30 | ctf_enum_value("MAP_SHARED", MAP_SHARED) |
| 31 | ctf_enum_value("MAP_PRIVATE", MAP_PRIVATE) |
| 32 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,15,0)) |
| 33 | ctf_enum_value("MAP_SHARED_VALIDATE", MAP_SHARED_VALIDATE) |
| 34 | #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(4,15,0)) */ |
| 35 | ) |
| 36 | ) |
| 37 | |
| 38 | /* |
| 39 | * Shift the values of the options so we can read them from the `flags` integer |
| 40 | * directly. |
| 41 | */ |
| 42 | SC_LTTNG_TRACEPOINT_ENUM(lttng_mmap_flags_options, |
| 43 | TP_ENUM_VALUES( |
| 44 | ctf_enum_value("<none>", 0) |
| 45 | ctf_enum_value("MAP_32BIT", LTTNG_MMAP_FLAGS_TO_CTF(MAP_32BIT)) |
| 46 | ctf_enum_value("MAP_ANONYMOUS", LTTNG_MMAP_FLAGS_TO_CTF(MAP_ANONYMOUS)) |
| 47 | ctf_enum_value("MAP_DENYWRITE", LTTNG_MMAP_FLAGS_TO_CTF(MAP_DENYWRITE)) |
| 48 | ctf_enum_value("MAP_EXECUTABLE", LTTNG_MMAP_FLAGS_TO_CTF(MAP_EXECUTABLE)) |
| 49 | ctf_enum_value("MAP_FIXED", LTTNG_MMAP_FLAGS_TO_CTF(MAP_FIXED)) |
| 50 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,17,0)) |
| 51 | ctf_enum_value("MAP_FIXED_NOREPLACE", LTTNG_MMAP_FLAGS_TO_CTF(MAP_FIXED_NOREPLACE)) |
| 52 | #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(4,17,0)) */ |
| 53 | ctf_enum_value("MAP_GROWSDOWN", LTTNG_MMAP_FLAGS_TO_CTF(MAP_GROWSDOWN)) |
| 54 | ctf_enum_value("MAP_HUGETLB", LTTNG_MMAP_FLAGS_TO_CTF(MAP_HUGETLB)) |
| 55 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0)) |
| 56 | ctf_enum_value("MAP_HUGETLB_2MB", LTTNG_MMAP_FLAGS_TO_CTF(MAP_HUGE_2MB)) |
| 57 | ctf_enum_value("MAP_HUGETLB_1GB", LTTNG_MMAP_FLAGS_TO_CTF(MAP_HUGE_1GB)) |
| 58 | #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0)) */ |
| 59 | ctf_enum_value("MAP_LOCKED", LTTNG_MMAP_FLAGS_TO_CTF(MAP_LOCKED)) |
| 60 | ctf_enum_value("MAP_NONBLOCK", LTTNG_MMAP_FLAGS_TO_CTF(MAP_NONBLOCK)) |
| 61 | ctf_enum_value("MAP_NORESERVE", LTTNG_MMAP_FLAGS_TO_CTF(MAP_NORESERVE)) |
| 62 | ctf_enum_value("MAP_POPULATE", LTTNG_MMAP_FLAGS_TO_CTF(MAP_POPULATE)) |
| 63 | ctf_enum_value("MAP_STACK", LTTNG_MMAP_FLAGS_TO_CTF(MAP_STACK)) |
| 64 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,15,0)) |
| 65 | ctf_enum_value("MAP_SYNC", LTTNG_MMAP_FLAGS_TO_CTF(MAP_SYNC)) |
| 66 | #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(4,15,0)) */ |
| 67 | ctf_enum_value("MAP_UNINITIALIZED", LTTNG_MMAP_FLAGS_TO_CTF(MAP_UNINITIALIZED)) |
| 68 | ) |
| 69 | ) |
| 70 | |
| 71 | #define LTTNG_MMAP_FLAGS_TYPE \ |
| 72 | { \ |
| 73 | .name = "type", \ |
| 74 | .type = { \ |
| 75 | .atype = atype_enum_nestable, \ |
| 76 | .u = { \ |
| 77 | .enum_nestable = { \ |
| 78 | .desc = &__enum_lttng_mmap_flags_mapping_type, \ |
| 79 | .container_type = __LTTNG_COMPOUND_LITERAL( \ |
| 80 | struct lttng_type, __type_integer(uint32_t, \ |
| 81 | 4, 1, -1, __BYTE_ORDER, 16, none)), \ |
| 82 | }, \ |
| 83 | }, \ |
| 84 | }, \ |
| 85 | } |
| 86 | |
| 87 | #define LTTNG_MMAP_FLAGS_OPTIONS \ |
| 88 | { \ |
| 89 | .name = "options", \ |
| 90 | .type = { \ |
| 91 | .atype = atype_enum_nestable, \ |
| 92 | .u = { \ |
| 93 | .enum_nestable = { \ |
| 94 | .desc = &__enum_lttng_mmap_flags_options, \ |
| 95 | .container_type = __LTTNG_COMPOUND_LITERAL( \ |
| 96 | struct lttng_type, __type_integer(uint32_t, \ |
| 97 | 28, 1, -1, __BYTE_ORDER, 16, none)),\ |
| 98 | }, \ |
| 99 | }, \ |
| 100 | }, \ |
| 101 | } |
| 102 | |
| 103 | #if (__BYTE_ORDER == __LITTLE_ENDIAN) |
| 104 | #define LTTNG_MMAP_FLAGS \ |
| 105 | [0] = LTTNG_MMAP_FLAGS_TYPE, \ |
| 106 | [1] = LTTNG_MMAP_FLAGS_OPTIONS, |
| 107 | |
| 108 | #else |
| 109 | #define LTTNG_MMAP_FLAGS \ |
| 110 | [0] = LTTNG_MMAP_FLAGS_OPTIONS, \ |
| 111 | [1] = LTTNG_MMAP_FLAGS_TYPE, |
| 112 | #endif |
| 113 | |
| 114 | /* |
| 115 | * Use a custom field here so that tracer writes a single integer and the |
| 116 | * work of splitting it up in two fields is left to the trace reader. |
| 117 | */ |
| 118 | #define OVERRIDE_32_mmap |
| 119 | #define OVERRIDE_64_mmap |
| 120 | SC_LTTNG_TRACEPOINT_EVENT(mmap, |
| 121 | TP_PROTO(sc_exit(unsigned long ret,) |
| 122 | unsigned long addr, unsigned long len, |
| 123 | unsigned long prot, unsigned long flags, |
| 124 | unsigned long fd, unsigned long off), |
| 125 | TP_ARGS(sc_exit(ret,) addr, len, prot, flags, fd, off), |
| 126 | TP_FIELDS(sc_exit(ctf_integer_hex(unsigned long, ret, ret)) |
| 127 | sc_in(ctf_integer_hex(unsigned long, addr, addr)) |
| 128 | sc_in(ctf_integer(size_t, len, len)) |
| 129 | sc_in(ctf_enum(lttng_mmap_protection, int, prot, prot)) |
| 130 | sc_in( |
| 131 | ctf_custom_field( |
| 132 | ctf_custom_type( |
| 133 | { |
| 134 | .atype = atype_struct_nestable, |
| 135 | .u.struct_nestable.nr_fields = 2, |
| 136 | .u.struct_nestable.fields = |
| 137 | __LTTNG_COMPOUND_LITERAL(struct lttng_event_field, |
| 138 | LTTNG_MMAP_FLAGS |
| 139 | ), |
| 140 | .u.struct_nestable.alignment = lttng_alignof(uint32_t) * CHAR_BIT, |
| 141 | } |
| 142 | ), |
| 143 | flags, |
| 144 | ctf_custom_code( |
| 145 | ctf_integer_type(uint32_t, flags) |
| 146 | ) |
| 147 | ) |
| 148 | ) |
| 149 | sc_in(ctf_integer(int, fd, fd)) |
| 150 | sc_in(ctf_integer(off_t, offset, off)) |
| 151 | ) |
| 152 | ) |
| 153 | |
| 154 | /* |
| 155 | * Enumeration of the open flags, as described in the 'open' |
| 156 | * system call man page. |
| 157 | */ |
| 158 | SC_LTTNG_TRACEPOINT_ENUM(lttng_fcntl_cmd_flags, |
| 159 | TP_ENUM_VALUES( |
| 160 | ctf_enum_value("F_DUPFD", F_DUPFD) |
| 161 | ctf_enum_value("F_GETFD", F_GETFD) |
| 162 | ctf_enum_value("F_SETFD", F_SETFD) |
| 163 | ctf_enum_value("F_GETFL", F_GETFL) |
| 164 | ctf_enum_value("F_SETFL", F_SETFL) |
| 165 | ctf_enum_value("F_GETLK", F_GETLK) |
| 166 | ctf_enum_value("F_SETLK", F_SETLK) |
| 167 | ctf_enum_value("F_SETLKW", F_SETLKW) |
| 168 | ctf_enum_value("F_SETOWN", F_SETOWN) |
| 169 | ctf_enum_value("F_GETOWN", F_GETOWN) |
| 170 | ctf_enum_value("F_SETSIG", F_SETSIG) |
| 171 | ctf_enum_value("F_GETSIG", F_GETSIG) |
| 172 | #if !defined(CONFIG_64BIT) || defined(CONFIG_COMPAT) |
| 173 | ctf_enum_value("F_GETLK64", F_GETLK64) |
| 174 | ctf_enum_value("F_SETLK64", F_SETLK64) |
| 175 | ctf_enum_value("F_SETLKW64", F_SETLKW64) |
| 176 | #endif /* #if !defined(CONFIG_64BIT) || defined(CONFIG_COMPAT) */ |
| 177 | ctf_enum_value("F_SETOWN_EX", F_SETOWN_EX) |
| 178 | ctf_enum_value("F_GETOWN_EX", F_GETOWN_EX) |
| 179 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0)) |
| 180 | ctf_enum_value("F_GETOWNER_UIDS", F_GETOWNER_UIDS) |
| 181 | #endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0)) */ |
| 182 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,15,0)) |
| 183 | ctf_enum_value("F_OFD_GETLK", F_OFD_GETLK) |
| 184 | ctf_enum_value("F_OFD_SETLK", F_OFD_SETLK) |
| 185 | ctf_enum_value("F_OFD_SETLKW", F_OFD_SETLKW) |
| 186 | #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,15,0)) */ |
| 187 | ctf_enum_value("F_SETLEASE", F_SETLEASE) |
| 188 | ctf_enum_value("F_GETLEASE", F_GETLEASE) |
| 189 | ctf_enum_value("F_NOTIFY", F_NOTIFY) |
| 190 | ctf_enum_value("F_CANCELLK", F_CANCELLK) |
| 191 | ctf_enum_value("F_DUPFD_CLOEXEC", F_DUPFD_CLOEXEC) |
| 192 | ctf_enum_value("F_SETPIPE_SZ", F_SETPIPE_SZ) |
| 193 | ctf_enum_value("F_GETPIPE_SZ", F_GETPIPE_SZ) |
| 194 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,17,0)) |
| 195 | ctf_enum_value("F_ADD_SEALS", F_ADD_SEALS) |
| 196 | ctf_enum_value("F_GET_SEALS", F_GET_SEALS) |
| 197 | #endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,17,0)) */ |
| 198 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0)) |
| 199 | ctf_enum_value("F_GET_RW_HINT", F_GET_RW_HINT) |
| 200 | ctf_enum_value("F_SET_RW_HINT", F_SET_RW_HINT) |
| 201 | ctf_enum_value("F_GET_FILE_RW_HINT", F_GET_FILE_RW_HINT) |
| 202 | ctf_enum_value("F_SET_FILE_RW_HINT", F_SET_FILE_RW_HINT) |
| 203 | #endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0)) */ |
| 204 | ) |
| 205 | ) |
| 206 | |
| 207 | #define OVERRIDE_32_fcntl |
| 208 | #define OVERRIDE_64_fcntl |
| 209 | SC_LTTNG_TRACEPOINT_EVENT(fcntl, |
| 210 | TP_PROTO(sc_exit(long ret,) unsigned int fd, unsigned int cmd, unsigned long arg), |
| 211 | TP_ARGS(sc_exit(ret,) fd, cmd, arg), |
| 212 | TP_FIELDS( |
| 213 | sc_exit(ctf_integer(long, ret, ret)) |
| 214 | sc_in(ctf_integer(unsigned int, fd, fd)) |
| 215 | sc_in(ctf_enum(lttng_fcntl_cmd_flags, unsigned int, cmd, cmd)) |
| 216 | sc_inout(ctf_integer(unsigned long, arg, arg))) |
| 217 | ) |
| 218 | |
| 219 | #endif /* CREATE_SYSCALL_TABLE */ |