include/instrumentation/syscalls/headers/syscalls_integers_override.h

   1 /* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only) */
   2
   3 #include <linux/fcntl.h>
   4 #include <linux/mman.h>
   5
   6 #ifndef CREATE_SYSCALL_TABLE
   7
   8 /*
   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
  11  *   bytes integer,
  12  * - The options on the mapping are described by the remaining 28 most
  13  *   significant bits.
  14  */
  15 #define MAPPING_TYPE_RESERVED_BITS 4
  16 #define LTTNG_MMAP_FLAGS_TO_CTF(x) ((x) >> MAPPING_TYPE_RESERVED_BITS)
  17
  18 /*
  19  * Enumeration of the mmap flags, as described in the 'mmap'
  20  * system call man page.
  21  */
  22 SC_LTTNG_TRACEPOINT_ENUM(lttng_mmap_protection,
  23         TP_ENUM_VALUES(
  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)
  28         )
  29 )
  30
  31 SC_LTTNG_TRACEPOINT_ENUM(lttng_mmap_flags_mapping_type,
  32         TP_ENUM_VALUES(
  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)) */
  38         )
  39 )
  40
  41 /*
  42  * Shift the values of the options so we can read them from the `flags` integer
  43  * directly.
  44  */
  45 SC_LTTNG_TRACEPOINT_ENUM(lttng_mmap_flags_options,
  46         TP_ENUM_VALUES(
  47                 ctf_enum_value("<none>",                0)
  48
  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 */
  52
  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))
  57
  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)) */
  61
  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))
  64
  65 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
  66
  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 */
  70
  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 */
  74
  75 #endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) */
  76
  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))
  82
  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)) */
  86
  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 */
  90         )
  91 )
  92
  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)), \
  97                 false, false, false)
  98
  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)), \
 103                 false, false, false)
 104
 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,         \
 110 )
 111 #else
 112 #define LTTNG_MMAP_FLAGS                        \
 113 lttng_kernel_static_event_field_array(          \
 114         [0] = LTTNG_MMAP_FLAGS_OPTIONS,         \
 115         [1] = LTTNG_MMAP_FLAGS_TYPE,            \
 116 )
 117 #endif
 118
 119 /*
 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.
 122  */
 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))
 135                 sc_in(
 136                         ctf_custom_field(
 137                                 ctf_custom_type(
 138                                         lttng_kernel_static_type_struct(2, LTTNG_MMAP_FLAGS, lttng_alignof(uint32_t) * CHAR_BIT)
 139                                 ),
 140                                 flags,
 141                                 ctf_custom_code(
 142                                         ctf_integer_type(uint32_t, flags)
 143                                 )
 144                         )
 145                 )
 146                 sc_in(ctf_integer(int, fd, fd))
 147                 sc_in(ctf_integer(off_t, offset, off))
 148         )
 149 )
 150
 151 /*
 152  * Enumeration of the open flags, as described in the 'open'
 153  * system call man page.
 154  */
 155 SC_LTTNG_TRACEPOINT_ENUM(lttng_fcntl_cmd_flags,
 156         TP_ENUM_VALUES(
 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)) */
 201         )
 202 )
 203
 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),
 209         TP_FIELDS(
 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)))
 214 )
 215
 216 #endif /* CREATE_SYSCALL_TABLE */