X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=include%2Finstrumentation%2Fsyscalls%2Fheaders%2Fsyscalls_integers_override.h;h=334aea8f48369387c4d446878194d77378514772;hb=87ad3fdc188bdecd650cd6accdd8ea0bfa4c40e0;hp=e5578640ae6a1b5a3c022196a2cf6321751ba672;hpb=f25545b11fd0f467ca6271817885d82a431e906e;p=lttng-modules.git diff --git a/include/instrumentation/syscalls/headers/syscalls_integers_override.h b/include/instrumentation/syscalls/headers/syscalls_integers_override.h index e5578640..334aea8f 100644 --- a/include/instrumentation/syscalls/headers/syscalls_integers_override.h +++ b/include/instrumentation/syscalls/headers/syscalls_integers_override.h @@ -2,6 +2,121 @@ #ifndef CREATE_SYSCALL_TABLE +/* + * The `flags` argument of the mmap syscall is split in two parts: + * - The type of mapping is described by the four least significant bits of the 4 + * bytes integer, + * - The options on the mapping are described by the remaining 28 most + * significant bits. + */ +#define MAPPING_TYPE_RESERVED_BITS 4 +#define LTTNG_MMAP_FLAGS_TO_CTF(x) ((x) >> MAPPING_TYPE_RESERVED_BITS) + +/* + * Enumeration of the mmap flags, as described in the 'mmap' + * system call man page. + */ +SC_LTTNG_TRACEPOINT_ENUM(lttng_mmap_protection, + TP_ENUM_VALUES( + ctf_enum_value("PROT_EXEC", PROT_EXEC) + ctf_enum_value("PROT_READ", PROT_READ) + ctf_enum_value("PROT_WRITE", PROT_WRITE) + ctf_enum_value("PROT_NONE", PROT_NONE) + ) +) + +SC_LTTNG_TRACEPOINT_ENUM(lttng_mmap_flags_mapping_type, + TP_ENUM_VALUES( + ctf_enum_value("MAP_SHARED", MAP_SHARED) + ctf_enum_value("MAP_PRIVATE", MAP_PRIVATE) +#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0)) + ctf_enum_value("MAP_SHARED_VALIDATE", MAP_SHARED_VALIDATE) +#endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0)) */ + ) +) + +/* + * Shift the values of the options so we can read them from the `flags` integer + * directly. + */ +SC_LTTNG_TRACEPOINT_ENUM(lttng_mmap_flags_options, + TP_ENUM_VALUES( + ctf_enum_value("", 0) + +#if defined (MAP_32BIT) && MAP_32BIT != 0 + ctf_enum_value("MAP_32BIT", LTTNG_MMAP_FLAGS_TO_CTF(MAP_32BIT)) +#endif /* defined (MAP_32BIT) && MAP_32BIT != 0 */ + + ctf_enum_value("MAP_ANONYMOUS", LTTNG_MMAP_FLAGS_TO_CTF(MAP_ANONYMOUS)) + ctf_enum_value("MAP_DENYWRITE", LTTNG_MMAP_FLAGS_TO_CTF(MAP_DENYWRITE)) + ctf_enum_value("MAP_EXECUTABLE", LTTNG_MMAP_FLAGS_TO_CTF(MAP_EXECUTABLE)) + ctf_enum_value("MAP_FIXED", LTTNG_MMAP_FLAGS_TO_CTF(MAP_FIXED)) + +#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,17,0)) + ctf_enum_value("MAP_FIXED_NOREPLACE", LTTNG_MMAP_FLAGS_TO_CTF(MAP_FIXED_NOREPLACE)) +#endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,17,0)) */ + + ctf_enum_value("MAP_GROWSDOWN", LTTNG_MMAP_FLAGS_TO_CTF(MAP_GROWSDOWN)) + ctf_enum_value("MAP_HUGETLB", LTTNG_MMAP_FLAGS_TO_CTF(MAP_HUGETLB)) + +#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) + +#if defined (MAP_HUGE_2MB) && MAP_HUGE_2MB != 0 + ctf_enum_value("MAP_HUGE_2MB", LTTNG_MMAP_FLAGS_TO_CTF(MAP_HUGE_2MB)) +#endif /* defined (MAP_HUGE_2MB) && MAP_HUGE_2MB != 0 */ + +#if defined (MAP_HUGE_1GB) && MAP_HUGE_1GB != 0 + ctf_enum_value("MAP_HUGE_1GB", LTTNG_MMAP_FLAGS_TO_CTF(MAP_HUGE_1GB)) +#endif /* defined (MAP_HUGE_1GB) && MAP_HUGE_1GB != 0 */ + +#endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) */ + + ctf_enum_value("MAP_LOCKED", LTTNG_MMAP_FLAGS_TO_CTF(MAP_LOCKED)) + ctf_enum_value("MAP_NONBLOCK", LTTNG_MMAP_FLAGS_TO_CTF(MAP_NONBLOCK)) + ctf_enum_value("MAP_NORESERVE", LTTNG_MMAP_FLAGS_TO_CTF(MAP_NORESERVE)) + ctf_enum_value("MAP_POPULATE", LTTNG_MMAP_FLAGS_TO_CTF(MAP_POPULATE)) + ctf_enum_value("MAP_STACK", LTTNG_MMAP_FLAGS_TO_CTF(MAP_STACK)) + +#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0)) + ctf_enum_value("MAP_SYNC", LTTNG_MMAP_FLAGS_TO_CTF(MAP_SYNC)) +#endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0)) */ + +#if defined (MAP_UNINITIALIZED) && MAP_UNINITIALIZED != 0 + ctf_enum_value("MAP_UNINITIALIZED", LTTNG_MMAP_FLAGS_TO_CTF(MAP_UNINITIALIZED)) +#endif /* defined (MAP_UNINITIALIZED) && MAP_UNINITIALIZED != 0 */ + ) +) + +#define LTTNG_MMAP_FLAGS_TYPE \ + lttng_kernel_static_event_field("type", \ + lttng_kernel_static_type_enum(&__enum_lttng_mmap_flags_mapping_type, \ + lttng_kernel_static_type_integer(4, 1, 0, __BYTE_ORDER, 16)), \ + false, false, false) + +#define LTTNG_MMAP_FLAGS_OPTIONS \ + lttng_kernel_static_event_field("options", \ + lttng_kernel_static_type_enum(&__enum_lttng_mmap_flags_options, \ + lttng_kernel_static_type_integer(28, 1, 0, __BYTE_ORDER, 16)), \ + false, false, false) + +#if (__BYTE_ORDER == __LITTLE_ENDIAN) +#define LTTNG_MMAP_FLAGS \ +lttng_kernel_static_event_field_array( \ + [0] = LTTNG_MMAP_FLAGS_TYPE, \ + [1] = LTTNG_MMAP_FLAGS_OPTIONS, \ +) +#else +#define LTTNG_MMAP_FLAGS \ +lttng_kernel_static_event_field_array( \ + [0] = LTTNG_MMAP_FLAGS_OPTIONS, \ + [1] = LTTNG_MMAP_FLAGS_TYPE, \ +) +#endif + +/* + * Use a custom field here so that tracer writes a single integer and the + * work of splitting it up in two fields is left to the trace reader. + */ #define OVERRIDE_32_mmap #define OVERRIDE_64_mmap SC_LTTNG_TRACEPOINT_EVENT(mmap, @@ -13,8 +128,18 @@ SC_LTTNG_TRACEPOINT_EVENT(mmap, TP_FIELDS(sc_exit(ctf_integer_hex(unsigned long, ret, ret)) sc_in(ctf_integer_hex(unsigned long, addr, addr)) sc_in(ctf_integer(size_t, len, len)) - sc_in(ctf_integer(int, prot, prot)) - sc_in(ctf_integer(int, flags, flags)) + sc_in(ctf_enum(lttng_mmap_protection, int, prot, prot)) + sc_in( + ctf_custom_field( + ctf_custom_type( + lttng_kernel_static_type_struct(2, LTTNG_MMAP_FLAGS, lttng_alignof(uint32_t) * CHAR_BIT) + ), + flags, + ctf_custom_code( + ctf_integer_type(uint32_t, flags) + ) + ) + ) sc_in(ctf_integer(int, fd, fd)) sc_in(ctf_integer(off_t, offset, off)) ) @@ -45,14 +170,14 @@ SC_LTTNG_TRACEPOINT_ENUM(lttng_fcntl_cmd_flags, #endif /* #if !defined(CONFIG_64BIT) || defined(CONFIG_COMPAT) */ ctf_enum_value("F_SETOWN_EX", F_SETOWN_EX) ctf_enum_value("F_GETOWN_EX", F_GETOWN_EX) -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0)) +#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,6,0)) ctf_enum_value("F_GETOWNER_UIDS", F_GETOWNER_UIDS) -#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0)) */ -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,15,0)) +#endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,6,0)) */ +#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,15,0)) ctf_enum_value("F_OFD_GETLK", F_OFD_GETLK) ctf_enum_value("F_OFD_SETLK", F_OFD_SETLK) ctf_enum_value("F_OFD_SETLKW", F_OFD_SETLKW) -#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,15,0)) */ +#endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,15,0)) */ ctf_enum_value("F_SETLEASE", F_SETLEASE) ctf_enum_value("F_GETLEASE", F_GETLEASE) ctf_enum_value("F_NOTIFY", F_NOTIFY) @@ -60,16 +185,16 @@ SC_LTTNG_TRACEPOINT_ENUM(lttng_fcntl_cmd_flags, ctf_enum_value("F_DUPFD_CLOEXEC", F_DUPFD_CLOEXEC) ctf_enum_value("F_SETPIPE_SZ", F_SETPIPE_SZ) ctf_enum_value("F_GETPIPE_SZ", F_GETPIPE_SZ) -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,17,0)) +#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,17,0)) ctf_enum_value("F_ADD_SEALS", F_ADD_SEALS) ctf_enum_value("F_GET_SEALS", F_GET_SEALS) -#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,17,0)) */ -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0)) +#endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,17,0)) */ +#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,14,0)) ctf_enum_value("F_GET_RW_HINT", F_GET_RW_HINT) ctf_enum_value("F_SET_RW_HINT", F_SET_RW_HINT) ctf_enum_value("F_GET_FILE_RW_HINT", F_GET_FILE_RW_HINT) ctf_enum_value("F_SET_FILE_RW_HINT", F_SET_FILE_RW_HINT) -#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0)) */ +#endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,14,0)) */ ) )