Commit | Line | Data |
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8c572eba MD |
1 | /* |
2 | * text-to-ctf.c | |
3 | * | |
4 | * BabelTrace - Convert Text to CTF | |
5 | * | |
6 | * Copyright 2010, 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
7 | * | |
8 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
9 | * of this software and associated documentation files (the "Software"), to deal | |
10 | * in the Software without restriction, including without limitation the rights | |
11 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
12 | * copies of the Software, and to permit persons to whom the Software is | |
13 | * furnished to do so, subject to the following conditions: | |
14 | * | |
15 | * The above copyright notice and this permission notice shall be included in | |
16 | * all copies or substantial portions of the Software. | |
17 | * | |
18 | * Depends on glibc 2.10 for getline(). | |
19 | */ | |
20 | ||
90219914 MD |
21 | #include <sys/types.h> |
22 | #include <sys/stat.h> | |
23 | #include <fcntl.h> | |
24 | #include <sys/mman.h> | |
989c73bc | 25 | #include <dirent.h> |
90219914 | 26 | #include <stdio.h> |
989c73bc | 27 | #include <stdlib.h> |
90219914 MD |
28 | #include <stdint.h> |
29 | #include <unistd.h> | |
30 | #include <errno.h> | |
31 | #include <uuid/uuid.h> | |
32 | #include <string.h> | |
989c73bc | 33 | #include <endian.h> |
90219914 | 34 | |
8c572eba MD |
35 | #include <babeltrace/babeltrace.h> |
36 | #include <babeltrace/ctf/types.h> | |
37 | ||
989c73bc MD |
38 | static const char metadata[] = |
39 | "typealias integer { size = 8; align = 8; signed = false; } := uint8_t;\n" | |
40 | "typealias integer { size = 32; align = 32; signed = false; } := uint32_t;\n" | |
41 | "\n" | |
42 | "trace {\n" | |
43 | " major = %s;\n" /* major (e.g. 0) */ | |
44 | " minor = %s;\n" /* minor (e.g. 1) */ | |
45 | " uuid = %s;\n" /* UUID */ | |
46 | " byte_order = %s;\n" /* be or le */ | |
47 | " packet.header := struct {\n" | |
48 | " uint32_t magic;\n" | |
49 | " uint8_t trace_uuid[16];\n" | |
50 | " };\n" | |
51 | "};\n" | |
52 | "\n" | |
53 | "stream {\n" | |
54 | " packet.context := struct {\n" | |
55 | " uint32_t content_size;\n" | |
56 | " uint32_t packet_size;\n" | |
57 | " };\n" | |
58 | "};\n" | |
59 | "\n" | |
60 | "event {\n" | |
61 | " name = string;\n" | |
62 | " fields := struct { string str; };\n" | |
63 | "};\n"; | |
64 | ||
c8b219a3 | 65 | int babeltrace_debug, babeltrace_verbose; |
8c572eba MD |
66 | |
67 | static uuid_t s_uuid; | |
68 | ||
69 | static | |
46322b33 | 70 | void write_packet_header(struct ctf_stream_pos *pos, uuid_t uuid) |
8c572eba | 71 | { |
46322b33 | 72 | struct ctf_stream_pos dummy; |
8c572eba MD |
73 | |
74 | /* magic */ | |
46322b33 MD |
75 | ctf_dummy_pos(pos, &dummy); |
76 | ctf_align_pos(&dummy, sizeof(uint32_t) * CHAR_BIT); | |
77 | ctf_move_pos(&dummy, sizeof(uint32_t) * CHAR_BIT); | |
78 | assert(!ctf_pos_packet(&dummy)); | |
8c572eba | 79 | |
46322b33 MD |
80 | ctf_align_pos(pos, sizeof(uint32_t) * CHAR_BIT); |
81 | *(uint32_t *) ctf_get_pos_addr(pos) = 0xC1FC1FC1; | |
82 | ctf_move_pos(pos, sizeof(uint32_t) * CHAR_BIT); | |
8c572eba MD |
83 | |
84 | /* trace_uuid */ | |
46322b33 MD |
85 | ctf_dummy_pos(pos, &dummy); |
86 | ctf_align_pos(&dummy, sizeof(uint8_t) * CHAR_BIT); | |
87 | ctf_move_pos(&dummy, 16 * CHAR_BIT); | |
88 | assert(!ctf_pos_packet(&dummy)); | |
89 | ||
90 | ctf_align_pos(pos, sizeof(uint8_t) * CHAR_BIT); | |
91 | memcpy(ctf_get_pos_addr(pos), uuid, 16); | |
92 | ctf_move_pos(pos, 16 * CHAR_BIT); | |
8c572eba MD |
93 | } |
94 | ||
95 | static | |
46322b33 | 96 | void write_packet_context(struct ctf_stream_pos *pos) |
8c572eba | 97 | { |
46322b33 | 98 | struct ctf_stream_pos dummy; |
8c572eba MD |
99 | |
100 | /* content_size */ | |
46322b33 MD |
101 | ctf_dummy_pos(pos, &dummy); |
102 | ctf_align_pos(&dummy, sizeof(uint32_t) * CHAR_BIT); | |
103 | ctf_move_pos(&dummy, sizeof(uint32_t) * CHAR_BIT); | |
104 | assert(!ctf_pos_packet(&dummy)); | |
8c572eba | 105 | |
46322b33 MD |
106 | ctf_align_pos(pos, sizeof(uint32_t) * CHAR_BIT); |
107 | *(uint32_t *) ctf_get_pos_addr(pos) = -1U; /* Not known yet */ | |
108 | pos->content_size_loc = (uint32_t *) ctf_get_pos_addr(pos); | |
109 | ctf_move_pos(pos, sizeof(uint32_t) * CHAR_BIT); | |
8c572eba MD |
110 | |
111 | /* packet_size */ | |
46322b33 MD |
112 | ctf_dummy_pos(pos, &dummy); |
113 | ctf_align_pos(&dummy, sizeof(uint32_t) * CHAR_BIT); | |
114 | ctf_move_pos(&dummy, sizeof(uint32_t) * CHAR_BIT); | |
115 | assert(!ctf_pos_packet(&dummy)); | |
8c572eba | 116 | |
46322b33 MD |
117 | ctf_align_pos(pos, sizeof(uint32_t) * CHAR_BIT); |
118 | *(uint32_t *) ctf_get_pos_addr(pos) = pos->packet_size; | |
119 | ctf_move_pos(pos, sizeof(uint32_t) * CHAR_BIT); | |
8c572eba MD |
120 | } |
121 | ||
122 | static | |
46322b33 | 123 | void trace_string(char *line, struct ctf_stream_pos *pos, size_t len) |
8c572eba | 124 | { |
46322b33 | 125 | struct ctf_stream_pos dummy; |
8c572eba MD |
126 | int attempt = 0; |
127 | ||
128 | printf_debug("read: %s\n", line); | |
129 | retry: | |
46322b33 MD |
130 | ctf_dummy_pos(pos, &dummy); |
131 | ctf_align_pos(&dummy, sizeof(uint8_t) * CHAR_BIT); | |
132 | ctf_move_pos(&dummy, len * CHAR_BIT); | |
133 | if (ctf_pos_packet(&dummy)) { | |
8c572eba | 134 | /* TODO write content size */ |
46322b33 | 135 | ctf_pos_pad_packet(pos); |
8c572eba MD |
136 | write_packet_header(pos, s_uuid); |
137 | write_packet_context(pos); | |
138 | if (attempt++ == 1) { | |
139 | fprintf(stdout, "[Error] Line too large for packet size (%zukB) (discarded)\n", | |
140 | pos->packet_size / CHAR_BIT / 1024); | |
141 | return; | |
142 | } | |
143 | goto retry; | |
144 | } | |
145 | ||
46322b33 MD |
146 | ctf_align_pos(pos, sizeof(uint8_t) * CHAR_BIT); |
147 | memcpy(ctf_get_pos_addr(pos), line, len); | |
148 | ctf_move_pos(pos, len * CHAR_BIT); | |
8c572eba MD |
149 | } |
150 | ||
151 | static | |
152 | void trace_text(FILE *input, int output) | |
153 | { | |
46322b33 | 154 | struct ctf_stream_pos pos; |
8c572eba MD |
155 | ssize_t len; |
156 | char *line = NULL, *nl; | |
157 | size_t linesize; | |
158 | ||
989c73bc | 159 | ctf_init_pos(&pos, output, O_RDWR); |
8c572eba MD |
160 | |
161 | write_packet_header(&pos, s_uuid); | |
162 | write_packet_context(&pos); | |
163 | for (;;) { | |
164 | len = getline(&line, &linesize, input); | |
165 | if (len < 0) | |
166 | break; | |
167 | nl = strrchr(line, '\n'); | |
168 | if (nl) | |
169 | *nl = '\0'; | |
170 | trace_string(line, &pos, nl - line + 1); | |
171 | } | |
46322b33 | 172 | ctf_fini_pos(&pos); |
8c572eba | 173 | } |
90219914 | 174 | |
989c73bc MD |
175 | static void usage(FILE *fp) |
176 | { | |
177 | fprintf(fp, "BabelTrace Log Converter %u.%u\n", | |
178 | BABELTRACE_VERSION_MAJOR, | |
179 | BABELTRACE_VERSION_MINOR); | |
180 | fprintf(fp, "\n"); | |
181 | fprintf(fp, "Convert for a text log (read from standard input) to CTF.\n"); | |
182 | fprintf(fp, "\n"); | |
183 | fprintf(fp, "usage : babeltrace-log OUTPUT\n"); | |
184 | fprintf(fp, "\n"); | |
185 | fprintf(fp, " OUTPUT Output trace path\n"); | |
186 | fprintf(fp, "\n"); | |
187 | } | |
188 | ||
90219914 MD |
189 | int main(int argc, char **argv) |
190 | { | |
90219914 | 191 | int fd, ret; |
989c73bc MD |
192 | char *outputname; |
193 | DIR *dir; | |
194 | int dir_fd; | |
90219914 | 195 | |
989c73bc MD |
196 | if (argc < 2) { |
197 | usage(stdout); | |
198 | goto error; | |
90219914 | 199 | } |
989c73bc | 200 | outputname = argv[1]; |
90219914 | 201 | |
989c73bc | 202 | ret = mkdir(outputname, S_IRWXU|S_IRWXG); |
90219914 | 203 | if (ret) { |
989c73bc MD |
204 | perror("mkdir"); |
205 | goto error; | |
206 | } | |
207 | ||
208 | dir = opendir(outputname); | |
209 | if (!dir) { | |
210 | perror("opendir"); | |
211 | goto error_rmdir; | |
212 | } | |
213 | dir_fd = dirfd(dir); | |
214 | if (dir_fd < 0) { | |
215 | perror("dirfd"); | |
216 | goto error_closedir; | |
217 | } | |
218 | ||
219 | fd = openat(dir_fd, "datastream", O_RDWR|O_CREAT, | |
220 | S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP); | |
221 | if (fd < 0) { | |
222 | perror("openat"); | |
223 | goto error_closedirfd; | |
90219914 | 224 | } |
90219914 | 225 | |
8c572eba | 226 | trace_text(stdin, fd); |
989c73bc | 227 | |
90219914 | 228 | close(fd); |
989c73bc MD |
229 | exit(EXIT_SUCCESS); |
230 | ||
231 | /* error handling */ | |
232 | error_closedirfd: | |
233 | ret = close(dir_fd); | |
234 | if (ret) | |
235 | perror("close"); | |
236 | error_closedir: | |
237 | ret = closedir(dir); | |
238 | if (ret) | |
239 | perror("closedir"); | |
240 | error_rmdir: | |
241 | ret = rmdir(outputname); | |
242 | if (ret) | |
243 | perror("rmdir"); | |
244 | error: | |
245 | exit(EXIT_FAILURE); | |
90219914 | 246 | } |