- snprintf(uuid_s, sizeof(uuid_s),
- "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
- uuid_c[0], uuid_c[1], uuid_c[2], uuid_c[3],
- uuid_c[4], uuid_c[5], uuid_c[6], uuid_c[7],
- uuid_c[8], uuid_c[9], uuid_c[10], uuid_c[11],
- uuid_c[12], uuid_c[13], uuid_c[14], uuid_c[15]);
-
- ret = lttng_metadata_printf(session,
- "typealias integer { size = 8; align = %u; signed = false; } := uint8_t;\n"
- "typealias integer { size = 16; align = %u; signed = false; } := uint16_t;\n"
- "typealias integer { size = 32; align = %u; signed = false; } := uint32_t;\n"
- "typealias integer { size = 64; align = %u; signed = false; } := uint64_t;\n"
- "typealias integer { size = %u; align = %u; signed = false; } := unsigned long;\n"
- "typealias integer { size = 5; align = 1; signed = false; } := uint5_t;\n"
- "typealias integer { size = 27; align = 1; signed = false; } := uint27_t;\n"
- "\n"
- "trace {\n"
- " major = %u;\n"
- " minor = %u;\n"
- " uuid = \"%s\";\n"
- " byte_order = %s;\n"
- " packet.header := struct {\n"
- " uint32_t magic;\n"
- " uint8_t uuid[16];\n"
- " uint32_t stream_id;\n"
- " };\n"
- "};\n\n",
- lttng_alignof(uint8_t) * CHAR_BIT,
- lttng_alignof(uint16_t) * CHAR_BIT,
- lttng_alignof(uint32_t) * CHAR_BIT,
- lttng_alignof(uint64_t) * CHAR_BIT,
- sizeof(unsigned long) * CHAR_BIT,
- lttng_alignof(unsigned long) * CHAR_BIT,
- CTF_SPEC_MAJOR,
- CTF_SPEC_MINOR,
- uuid_s,
-#if (BYTE_ORDER == BIG_ENDIAN)
- "be"
-#else
- "le"
-#endif
- );
- if (ret)
- goto end;
-
- /* ignore error, just use empty string if error. */
- hostname[0] = '\0';
- ret = gethostname(hostname, sizeof(hostname));
- if (ret && errno == ENAMETOOLONG)
- hostname[HOST_NAME_MAX - 1] = '\0';
- lttng_ust_getprocname(procname);
- procname[LTTNG_UST_PROCNAME_LEN - 1] = '\0';
- ret = lttng_metadata_printf(session,
- "env {\n"
- " hostname = \"%s\";\n"
- " vpid = %d;\n"
- " procname = \"%s\";\n"
- " domain = \"ust\";\n"
- " tracer_name = \"lttng-ust\";\n"
- " tracer_major = %u;\n"
- " tracer_minor = %u;\n"
- " tracer_patchlevel = %u;\n"
- "};\n\n",
- hostname,
- (int) getpid(),
- procname,
- LTTNG_UST_MAJOR_VERSION,
- LTTNG_UST_MINOR_VERSION,
- LTTNG_UST_PATCHLEVEL_VERSION
- );
- if (ret)
- goto end;
-
- ret = lttng_metadata_printf(session,
- "clock {\n"
- " name = %s;\n",
- "monotonic"
- );
- if (ret)
- goto end;