include/instrumentation/syscalls/headers/syscalls_integers_override.h

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