include/instrumentation/syscalls/syscalls_integers_override.h

   1 // SPDX-FileCopyrightText: 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   2 //
   3 // SPDX-License-Identifier: GPL-2.0-only OR LGPL-2.1-only
   4
   5 #ifndef CREATE_SYSCALL_TABLE
   6
   7 #ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM
   8
   9 /*
  10  * The `flags` argument of the mmap syscall is split in two parts:
  11  * - The type of mapping is described by the four least significant bits of the 4
  12  *   bytes integer,
  13  * - The options on the mapping are described by the remaining 28 most
  14  *   significant bits.
  15  */
  16 #define MAPPING_TYPE_RESERVED_BITS 4
  17 #define LTTNG_MMAP_FLAGS_TO_CTF(x) ((x) >> MAPPING_TYPE_RESERVED_BITS)
  18
  19 /*
  20  * Enumeration of the mmap flags, as described in the 'mmap'
  21  * system call man page.
  22  */
  23 SC_LTTNG_TRACEPOINT_ENUM(lttng_mmap_protection,
  24         TP_ENUM_VALUES(
  25                 ctf_enum_value("PROT_EXEC",     PROT_EXEC)
  26                 ctf_enum_value("PROT_READ",     PROT_READ)
  27                 ctf_enum_value("PROT_WRITE",    PROT_WRITE)
  28                 ctf_enum_value("PROT_NONE",     PROT_NONE)
  29         )
  30 )
  31
  32 SC_LTTNG_TRACEPOINT_ENUM(lttng_mmap_flags_mapping_type,
  33         TP_ENUM_VALUES(
  34                 ctf_enum_value("MAP_SHARED",            MAP_SHARED)
  35                 ctf_enum_value("MAP_PRIVATE",           MAP_PRIVATE)
  36 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0))
  37                 ctf_enum_value("MAP_SHARED_VALIDATE",   MAP_SHARED_VALIDATE)
  38 #endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0)) */
  39         )
  40 )
  41
  42 /*
  43  * Shift the values of the options so we can read them from the `flags` integer
  44  * directly.
  45  */
  46 SC_LTTNG_TRACEPOINT_ENUM(lttng_mmap_flags_options,
  47         TP_ENUM_VALUES(
  48                 ctf_enum_value("<none>",                0)
  49
  50 #if defined (MAP_32BIT) && MAP_32BIT != 0
  51                 ctf_enum_value("MAP_32BIT",             LTTNG_MMAP_FLAGS_TO_CTF(MAP_32BIT))
  52 #endif /* defined (MAP_32BIT) && MAP_32BIT != 0 */
  53
  54                 ctf_enum_value("MAP_ANONYMOUS",         LTTNG_MMAP_FLAGS_TO_CTF(MAP_ANONYMOUS))
  55                 ctf_enum_value("MAP_DENYWRITE",         LTTNG_MMAP_FLAGS_TO_CTF(MAP_DENYWRITE))
  56                 ctf_enum_value("MAP_EXECUTABLE",        LTTNG_MMAP_FLAGS_TO_CTF(MAP_EXECUTABLE))
  57                 ctf_enum_value("MAP_FIXED",             LTTNG_MMAP_FLAGS_TO_CTF(MAP_FIXED))
  58
  59 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,17,0))
  60                 ctf_enum_value("MAP_FIXED_NOREPLACE",   LTTNG_MMAP_FLAGS_TO_CTF(MAP_FIXED_NOREPLACE))
  61 #endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,17,0)) */
  62
  63                 ctf_enum_value("MAP_GROWSDOWN",         LTTNG_MMAP_FLAGS_TO_CTF(MAP_GROWSDOWN))
  64                 ctf_enum_value("MAP_HUGETLB",           LTTNG_MMAP_FLAGS_TO_CTF(MAP_HUGETLB))
  65
  66 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
  67
  68 #if defined (MAP_HUGE_2MB) && MAP_HUGE_2MB != 0
  69                 ctf_enum_value("MAP_HUGE_2MB",          LTTNG_MMAP_FLAGS_TO_CTF(MAP_HUGE_2MB))
  70 #endif /* defined (MAP_HUGE_2MB) && MAP_HUGE_2MB != 0 */
  71
  72 #if defined (MAP_HUGE_1GB) && MAP_HUGE_1GB != 0
  73                 ctf_enum_value("MAP_HUGE_1GB",          LTTNG_MMAP_FLAGS_TO_CTF(MAP_HUGE_1GB))
  74 #endif /* defined (MAP_HUGE_1GB) && MAP_HUGE_1GB != 0 */
  75
  76 #endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) */
  77
  78                 ctf_enum_value("MAP_LOCKED",            LTTNG_MMAP_FLAGS_TO_CTF(MAP_LOCKED))
  79                 ctf_enum_value("MAP_NONBLOCK",          LTTNG_MMAP_FLAGS_TO_CTF(MAP_NONBLOCK))
  80                 ctf_enum_value("MAP_NORESERVE",         LTTNG_MMAP_FLAGS_TO_CTF(MAP_NORESERVE))
  81                 ctf_enum_value("MAP_POPULATE",          LTTNG_MMAP_FLAGS_TO_CTF(MAP_POPULATE))
  82                 ctf_enum_value("MAP_STACK",             LTTNG_MMAP_FLAGS_TO_CTF(MAP_STACK))
  83
  84 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0))
  85                 ctf_enum_value("MAP_SYNC",              LTTNG_MMAP_FLAGS_TO_CTF(MAP_SYNC))
  86 #endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0)) */
  87
  88 #if defined (MAP_UNINITIALIZED) && MAP_UNINITIALIZED != 0
  89                 ctf_enum_value("MAP_UNINITIALIZED",     LTTNG_MMAP_FLAGS_TO_CTF(MAP_UNINITIALIZED))
  90 #endif /* defined (MAP_UNINITIALIZED) && MAP_UNINITIALIZED != 0 */
  91         )
  92 )
  93
  94 #define LTTNG_MMAP_FLAGS_TYPE                                           \
  95         lttng_kernel_static_event_field("type",                         \
  96                 lttng_kernel_static_type_enum(&__enum_lttng_mmap_flags_mapping_type, \
  97                                 lttng_kernel_static_type_integer(4, 1, 0, __BYTE_ORDER, 16)), \
  98                 false, false)
  99
 100 #define LTTNG_MMAP_FLAGS_OPTIONS                                        \
 101         lttng_kernel_static_event_field("options",                      \
 102                 lttng_kernel_static_type_enum(&__enum_lttng_mmap_flags_options, \
 103                                 lttng_kernel_static_type_integer(28, 1, 0, __BYTE_ORDER, 16)), \
 104                 false, false)
 105
 106 #if (__BYTE_ORDER == __LITTLE_ENDIAN)
 107 #define LTTNG_MMAP_FLAGS                        \
 108 lttng_kernel_static_event_field_array(          \
 109         [0] = LTTNG_MMAP_FLAGS_TYPE,            \
 110         [1] = LTTNG_MMAP_FLAGS_OPTIONS,         \
 111 )
 112 #else
 113 #define LTTNG_MMAP_FLAGS                        \
 114 lttng_kernel_static_event_field_array(          \
 115         [0] = LTTNG_MMAP_FLAGS_OPTIONS,         \
 116         [1] = LTTNG_MMAP_FLAGS_TYPE,            \
 117 )
 118 #endif
 119
 120 #endif /* CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM */
 121
 122 #define OVERRIDE_32_mmap
 123 #define OVERRIDE_64_mmap
 124 SC_LTTNG_TRACEPOINT_EVENT(mmap,
 125         TP_PROTO(sc_exit(unsigned long ret,)
 126                 unsigned long addr, unsigned long len,
 127                 unsigned long prot, unsigned long flags,
 128                 unsigned long fd, unsigned long off),
 129         TP_ARGS(sc_exit(ret,) addr, len, prot, flags, fd, off),
 130         TP_FIELDS(sc_exit(ctf_integer_hex(unsigned long, ret, ret))
 131                 sc_in(ctf_integer_hex(unsigned long, addr, addr))
 132                 sc_in(ctf_integer(size_t, len, len))
 133 #ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM
 134                 /*
 135                  * Use a custom field here so that tracer writes a single
 136                  * integer and the work of splitting it up in two fields is
 137                  * left to the trace reader.
 138                  */
 139                 sc_in(ctf_enum(lttng_mmap_protection, int, prot, prot))
 140                 sc_in(
 141                         ctf_custom_field(
 142                                 ctf_custom_type(
 143                                         lttng_kernel_static_type_struct(2, LTTNG_MMAP_FLAGS, lttng_alignof(uint32_t) * CHAR_BIT)
 144                                 ),
 145                                 flags,
 146                                 ctf_custom_code(
 147                                         ctf_integer_type(uint32_t, flags)
 148                                 )
 149                         )
 150                 )
 151 #else
 152                 sc_in(ctf_integer(int, prot, prot))
 153                 sc_in(ctf_integer(int, flags, flags))
 154 #endif /* CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM */
 155                 sc_in(ctf_integer(int, fd, fd))
 156                 sc_in(ctf_integer(off_t, offset, off))
 157         )
 158 )
 159
 160 #ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM
 161 /*
 162  * Enumeration of the open flags, as described in the 'open'
 163  * system call man page.
 164  */
 165 SC_LTTNG_TRACEPOINT_ENUM(lttng_fcntl_cmd_flags,
 166         TP_ENUM_VALUES(
 167                 ctf_enum_value("F_DUPFD", F_DUPFD)
 168                 ctf_enum_value("F_GETFD", F_GETFD)
 169                 ctf_enum_value("F_SETFD", F_SETFD)
 170                 ctf_enum_value("F_GETFL", F_GETFL)
 171                 ctf_enum_value("F_SETFL", F_SETFL)
 172                 ctf_enum_value("F_GETLK", F_GETLK)
 173                 ctf_enum_value("F_SETLK", F_SETLK)
 174                 ctf_enum_value("F_SETLKW", F_SETLKW)
 175                 ctf_enum_value("F_SETOWN", F_SETOWN)
 176                 ctf_enum_value("F_GETOWN", F_GETOWN)
 177                 ctf_enum_value("F_SETSIG", F_SETSIG)
 178                 ctf_enum_value("F_GETSIG", F_GETSIG)
 179 #if !defined(CONFIG_64BIT) || defined(CONFIG_COMPAT)
 180                 ctf_enum_value("F_GETLK64", F_GETLK64)
 181                 ctf_enum_value("F_SETLK64", F_SETLK64)
 182                 ctf_enum_value("F_SETLKW64", F_SETLKW64)
 183 #endif  /* #if !defined(CONFIG_64BIT) || defined(CONFIG_COMPAT) */
 184                 ctf_enum_value("F_SETOWN_EX", F_SETOWN_EX)
 185                 ctf_enum_value("F_GETOWN_EX", F_GETOWN_EX)
 186 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,6,0))
 187                 ctf_enum_value("F_GETOWNER_UIDS", F_GETOWNER_UIDS)
 188 #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,6,0)) */
 189 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,15,0))
 190                 ctf_enum_value("F_OFD_GETLK", F_OFD_GETLK)
 191                 ctf_enum_value("F_OFD_SETLK", F_OFD_SETLK)
 192                 ctf_enum_value("F_OFD_SETLKW", F_OFD_SETLKW)
 193 #endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,15,0)) */
 194                 ctf_enum_value("F_SETLEASE", F_SETLEASE)
 195                 ctf_enum_value("F_GETLEASE", F_GETLEASE)
 196                 ctf_enum_value("F_NOTIFY", F_NOTIFY)
 197                 ctf_enum_value("F_CANCELLK", F_CANCELLK)
 198                 ctf_enum_value("F_DUPFD_CLOEXEC", F_DUPFD_CLOEXEC)
 199                 ctf_enum_value("F_SETPIPE_SZ", F_SETPIPE_SZ)
 200                 ctf_enum_value("F_GETPIPE_SZ", F_GETPIPE_SZ)
 201 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,17,0))
 202                 ctf_enum_value("F_ADD_SEALS", F_ADD_SEALS)
 203                 ctf_enum_value("F_GET_SEALS", F_GET_SEALS)
 204 #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,17,0)) */
 205 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,14,0))
 206                 ctf_enum_value("F_GET_RW_HINT", F_GET_RW_HINT)
 207                 ctf_enum_value("F_SET_RW_HINT", F_SET_RW_HINT)
 208                 ctf_enum_value("F_GET_FILE_RW_HINT", F_GET_FILE_RW_HINT)
 209                 ctf_enum_value("F_SET_FILE_RW_HINT", F_SET_FILE_RW_HINT)
 210 #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,14,0)) */
 211         )
 212 )
 213
 214 #define OVERRIDE_32_fcntl
 215 #define OVERRIDE_64_fcntl
 216 SC_LTTNG_TRACEPOINT_EVENT(fcntl,
 217         TP_PROTO(sc_exit(long ret,) unsigned int fd, unsigned int cmd, unsigned long arg),
 218         TP_ARGS(sc_exit(ret,) fd, cmd, arg),
 219         TP_FIELDS(
 220                 sc_exit(ctf_integer(long, ret, ret))
 221                 sc_in(ctf_integer(unsigned int, fd, fd))
 222                 sc_in(ctf_enum(lttng_fcntl_cmd_flags, unsigned int, cmd, cmd))
 223                 sc_inout(ctf_integer(unsigned long, arg, arg)))
 224 )
 225 #endif /* CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM */
 226
 227 #endif /* CREATE_SYSCALL_TABLE */