| 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 (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0)) |
| 33 | ctf_enum_value("MAP_SHARED_VALIDATE", MAP_SHARED_VALIDATE) |
| 34 | #endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_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 | |
| 46 | #if defined (MAP_32BIT) && MAP_32BIT != 0 |
| 47 | ctf_enum_value("MAP_32BIT", LTTNG_MMAP_FLAGS_TO_CTF(MAP_32BIT)) |
| 48 | #endif /* defined (MAP_32BIT) && MAP_32BIT != 0 */ |
| 49 | |
| 50 | ctf_enum_value("MAP_ANONYMOUS", LTTNG_MMAP_FLAGS_TO_CTF(MAP_ANONYMOUS)) |
| 51 | ctf_enum_value("MAP_DENYWRITE", LTTNG_MMAP_FLAGS_TO_CTF(MAP_DENYWRITE)) |
| 52 | ctf_enum_value("MAP_EXECUTABLE", LTTNG_MMAP_FLAGS_TO_CTF(MAP_EXECUTABLE)) |
| 53 | ctf_enum_value("MAP_FIXED", LTTNG_MMAP_FLAGS_TO_CTF(MAP_FIXED)) |
| 54 | |
| 55 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,17,0)) |
| 56 | ctf_enum_value("MAP_FIXED_NOREPLACE", LTTNG_MMAP_FLAGS_TO_CTF(MAP_FIXED_NOREPLACE)) |
| 57 | #endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,17,0)) */ |
| 58 | |
| 59 | ctf_enum_value("MAP_GROWSDOWN", LTTNG_MMAP_FLAGS_TO_CTF(MAP_GROWSDOWN)) |
| 60 | ctf_enum_value("MAP_HUGETLB", LTTNG_MMAP_FLAGS_TO_CTF(MAP_HUGETLB)) |
| 61 | |
| 62 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) |
| 63 | |
| 64 | #if defined (MAP_HUGE_2MB) && MAP_HUGE_2MB != 0 |
| 65 | ctf_enum_value("MAP_HUGE_2MB", LTTNG_MMAP_FLAGS_TO_CTF(MAP_HUGE_2MB)) |
| 66 | #endif /* defined (MAP_HUGE_2MB) && MAP_HUGE_2MB != 0 */ |
| 67 | |
| 68 | #if defined (MAP_HUGE_1GB) && MAP_HUGE_1GB != 0 |
| 69 | ctf_enum_value("MAP_HUGE_1GB", LTTNG_MMAP_FLAGS_TO_CTF(MAP_HUGE_1GB)) |
| 70 | #endif /* defined (MAP_HUGE_1GB) && MAP_HUGE_1GB != 0 */ |
| 71 | |
| 72 | #endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) */ |
| 73 | |
| 74 | ctf_enum_value("MAP_LOCKED", LTTNG_MMAP_FLAGS_TO_CTF(MAP_LOCKED)) |
| 75 | ctf_enum_value("MAP_NONBLOCK", LTTNG_MMAP_FLAGS_TO_CTF(MAP_NONBLOCK)) |
| 76 | ctf_enum_value("MAP_NORESERVE", LTTNG_MMAP_FLAGS_TO_CTF(MAP_NORESERVE)) |
| 77 | ctf_enum_value("MAP_POPULATE", LTTNG_MMAP_FLAGS_TO_CTF(MAP_POPULATE)) |
| 78 | ctf_enum_value("MAP_STACK", LTTNG_MMAP_FLAGS_TO_CTF(MAP_STACK)) |
| 79 | |
| 80 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0)) |
| 81 | ctf_enum_value("MAP_SYNC", LTTNG_MMAP_FLAGS_TO_CTF(MAP_SYNC)) |
| 82 | #endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0)) */ |
| 83 | |
| 84 | #if defined (MAP_UNINITIALIZED) && MAP_UNINITIALIZED != 0 |
| 85 | ctf_enum_value("MAP_UNINITIALIZED", LTTNG_MMAP_FLAGS_TO_CTF(MAP_UNINITIALIZED)) |
| 86 | #endif /* defined (MAP_UNINITIALIZED) && MAP_UNINITIALIZED != 0 */ |
| 87 | ) |
| 88 | ) |
| 89 | |
| 90 | #define LTTNG_MMAP_FLAGS_TYPE \ |
| 91 | lttng_kernel_static_event_field("type", \ |
| 92 | lttng_kernel_static_type_enum(&__enum_lttng_mmap_flags_mapping_type, \ |
| 93 | lttng_kernel_static_type_integer(4, 1, 0, __BYTE_ORDER, 16)), \ |
| 94 | false, false, false) |
| 95 | |
| 96 | #define LTTNG_MMAP_FLAGS_OPTIONS \ |
| 97 | lttng_kernel_static_event_field("options", \ |
| 98 | lttng_kernel_static_type_enum(&__enum_lttng_mmap_flags_options, \ |
| 99 | lttng_kernel_static_type_integer(28, 1, 0, __BYTE_ORDER, 16)), \ |
| 100 | false, false, false) |
| 101 | |
| 102 | #if (__BYTE_ORDER == __LITTLE_ENDIAN) |
| 103 | #define LTTNG_MMAP_FLAGS \ |
| 104 | lttng_kernel_static_event_field_array( \ |
| 105 | [0] = LTTNG_MMAP_FLAGS_TYPE, \ |
| 106 | [1] = LTTNG_MMAP_FLAGS_OPTIONS, \ |
| 107 | ) |
| 108 | #else |
| 109 | #define LTTNG_MMAP_FLAGS \ |
| 110 | lttng_kernel_static_event_field_array( \ |
| 111 | [0] = LTTNG_MMAP_FLAGS_OPTIONS, \ |
| 112 | [1] = LTTNG_MMAP_FLAGS_TYPE, \ |
| 113 | ) |
| 114 | #endif |
| 115 | |
| 116 | /* |
| 117 | * Use a custom field here so that tracer writes a single integer and the |
| 118 | * work of splitting it up in two fields is left to the trace reader. |
| 119 | */ |
| 120 | #define OVERRIDE_32_mmap |
| 121 | #define OVERRIDE_64_mmap |
| 122 | SC_LTTNG_TRACEPOINT_EVENT(mmap, |
| 123 | TP_PROTO(sc_exit(unsigned long ret,) |
| 124 | unsigned long addr, unsigned long len, |
| 125 | unsigned long prot, unsigned long flags, |
| 126 | unsigned long fd, unsigned long off), |
| 127 | TP_ARGS(sc_exit(ret,) addr, len, prot, flags, fd, off), |
| 128 | TP_FIELDS(sc_exit(ctf_integer_hex(unsigned long, ret, ret)) |
| 129 | sc_in(ctf_integer_hex(unsigned long, addr, addr)) |
| 130 | sc_in(ctf_integer(size_t, len, len)) |
| 131 | sc_in(ctf_enum(lttng_mmap_protection, int, prot, prot)) |
| 132 | sc_in( |
| 133 | ctf_custom_field( |
| 134 | ctf_custom_type( |
| 135 | lttng_kernel_static_type_struct(2, LTTNG_MMAP_FLAGS, lttng_alignof(uint32_t) * CHAR_BIT) |
| 136 | ), |
| 137 | flags, |
| 138 | ctf_custom_code( |
| 139 | ctf_integer_type(uint32_t, flags) |
| 140 | ) |
| 141 | ) |
| 142 | ) |
| 143 | sc_in(ctf_integer(int, fd, fd)) |
| 144 | sc_in(ctf_integer(off_t, offset, off)) |
| 145 | ) |
| 146 | ) |
| 147 | |
| 148 | #ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM |
| 149 | /* |
| 150 | * Enumeration of the open flags, as described in the 'open' |
| 151 | * system call man page. |
| 152 | */ |
| 153 | SC_LTTNG_TRACEPOINT_ENUM(lttng_fcntl_cmd_flags, |
| 154 | TP_ENUM_VALUES( |
| 155 | ctf_enum_value("F_DUPFD", F_DUPFD) |
| 156 | ctf_enum_value("F_GETFD", F_GETFD) |
| 157 | ctf_enum_value("F_SETFD", F_SETFD) |
| 158 | ctf_enum_value("F_GETFL", F_GETFL) |
| 159 | ctf_enum_value("F_SETFL", F_SETFL) |
| 160 | ctf_enum_value("F_GETLK", F_GETLK) |
| 161 | ctf_enum_value("F_SETLK", F_SETLK) |
| 162 | ctf_enum_value("F_SETLKW", F_SETLKW) |
| 163 | ctf_enum_value("F_SETOWN", F_SETOWN) |
| 164 | ctf_enum_value("F_GETOWN", F_GETOWN) |
| 165 | ctf_enum_value("F_SETSIG", F_SETSIG) |
| 166 | ctf_enum_value("F_GETSIG", F_GETSIG) |
| 167 | #if !defined(CONFIG_64BIT) || defined(CONFIG_COMPAT) |
| 168 | ctf_enum_value("F_GETLK64", F_GETLK64) |
| 169 | ctf_enum_value("F_SETLK64", F_SETLK64) |
| 170 | ctf_enum_value("F_SETLKW64", F_SETLKW64) |
| 171 | #endif /* #if !defined(CONFIG_64BIT) || defined(CONFIG_COMPAT) */ |
| 172 | ctf_enum_value("F_SETOWN_EX", F_SETOWN_EX) |
| 173 | ctf_enum_value("F_GETOWN_EX", F_GETOWN_EX) |
| 174 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,6,0)) |
| 175 | ctf_enum_value("F_GETOWNER_UIDS", F_GETOWNER_UIDS) |
| 176 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,6,0)) */ |
| 177 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,15,0)) |
| 178 | ctf_enum_value("F_OFD_GETLK", F_OFD_GETLK) |
| 179 | ctf_enum_value("F_OFD_SETLK", F_OFD_SETLK) |
| 180 | ctf_enum_value("F_OFD_SETLKW", F_OFD_SETLKW) |
| 181 | #endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,15,0)) */ |
| 182 | ctf_enum_value("F_SETLEASE", F_SETLEASE) |
| 183 | ctf_enum_value("F_GETLEASE", F_GETLEASE) |
| 184 | ctf_enum_value("F_NOTIFY", F_NOTIFY) |
| 185 | ctf_enum_value("F_CANCELLK", F_CANCELLK) |
| 186 | ctf_enum_value("F_DUPFD_CLOEXEC", F_DUPFD_CLOEXEC) |
| 187 | ctf_enum_value("F_SETPIPE_SZ", F_SETPIPE_SZ) |
| 188 | ctf_enum_value("F_GETPIPE_SZ", F_GETPIPE_SZ) |
| 189 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,17,0)) |
| 190 | ctf_enum_value("F_ADD_SEALS", F_ADD_SEALS) |
| 191 | ctf_enum_value("F_GET_SEALS", F_GET_SEALS) |
| 192 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,17,0)) */ |
| 193 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,14,0)) |
| 194 | ctf_enum_value("F_GET_RW_HINT", F_GET_RW_HINT) |
| 195 | ctf_enum_value("F_SET_RW_HINT", F_SET_RW_HINT) |
| 196 | ctf_enum_value("F_GET_FILE_RW_HINT", F_GET_FILE_RW_HINT) |
| 197 | ctf_enum_value("F_SET_FILE_RW_HINT", F_SET_FILE_RW_HINT) |
| 198 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,14,0)) */ |
| 199 | ) |
| 200 | ) |
| 201 | |
| 202 | #define OVERRIDE_32_fcntl |
| 203 | #define OVERRIDE_64_fcntl |
| 204 | SC_LTTNG_TRACEPOINT_EVENT(fcntl, |
| 205 | TP_PROTO(sc_exit(long ret,) unsigned int fd, unsigned int cmd, unsigned long arg), |
| 206 | TP_ARGS(sc_exit(ret,) fd, cmd, arg), |
| 207 | TP_FIELDS( |
| 208 | sc_exit(ctf_integer(long, ret, ret)) |
| 209 | sc_in(ctf_integer(unsigned int, fd, fd)) |
| 210 | sc_in(ctf_enum(lttng_fcntl_cmd_flags, unsigned int, cmd, cmd)) |
| 211 | sc_inout(ctf_integer(unsigned long, arg, arg))) |
| 212 | ) |
| 213 | #endif /* CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM */ |
| 214 | |
| 215 | #endif /* CREATE_SYSCALL_TABLE */ |