Commit | Line | Data |
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e7f01d1e | 1 | #include <linux/kernel.h> |
8fc0321f IM |
2 | #include "cache.h" |
3 | #include "color.h" | |
f77c6e9c | 4 | #include <math.h> |
8fc0321f | 5 | |
13d0ab5e | 6 | int perf_use_color_default = -1; |
8fc0321f IM |
7 | |
8 | static int parse_color(const char *name, int len) | |
9 | { | |
10 | static const char * const color_names[] = { | |
11 | "normal", "black", "red", "green", "yellow", | |
12 | "blue", "magenta", "cyan", "white" | |
13 | }; | |
14 | char *end; | |
15 | int i; | |
f37a291c IM |
16 | |
17 | for (i = 0; i < (int)ARRAY_SIZE(color_names); i++) { | |
8fc0321f IM |
18 | const char *str = color_names[i]; |
19 | if (!strncasecmp(name, str, len) && !str[len]) | |
20 | return i - 1; | |
21 | } | |
22 | i = strtol(name, &end, 10); | |
23 | if (end - name == len && i >= -1 && i <= 255) | |
24 | return i; | |
25 | return -2; | |
26 | } | |
27 | ||
28 | static int parse_attr(const char *name, int len) | |
29 | { | |
30 | static const int attr_values[] = { 1, 2, 4, 5, 7 }; | |
31 | static const char * const attr_names[] = { | |
32 | "bold", "dim", "ul", "blink", "reverse" | |
33 | }; | |
f37a291c IM |
34 | unsigned int i; |
35 | ||
8fc0321f IM |
36 | for (i = 0; i < ARRAY_SIZE(attr_names); i++) { |
37 | const char *str = attr_names[i]; | |
38 | if (!strncasecmp(name, str, len) && !str[len]) | |
39 | return attr_values[i]; | |
40 | } | |
41 | return -1; | |
42 | } | |
43 | ||
44 | void color_parse(const char *value, const char *var, char *dst) | |
45 | { | |
46 | color_parse_mem(value, strlen(value), var, dst); | |
47 | } | |
48 | ||
49 | void color_parse_mem(const char *value, int value_len, const char *var, | |
50 | char *dst) | |
51 | { | |
52 | const char *ptr = value; | |
53 | int len = value_len; | |
54 | int attr = -1; | |
55 | int fg = -2; | |
56 | int bg = -2; | |
57 | ||
58 | if (!strncasecmp(value, "reset", len)) { | |
59 | strcpy(dst, PERF_COLOR_RESET); | |
60 | return; | |
61 | } | |
62 | ||
63 | /* [fg [bg]] [attr] */ | |
64 | while (len > 0) { | |
65 | const char *word = ptr; | |
66 | int val, wordlen = 0; | |
67 | ||
68 | while (len > 0 && !isspace(word[wordlen])) { | |
69 | wordlen++; | |
70 | len--; | |
71 | } | |
72 | ||
73 | ptr = word + wordlen; | |
74 | while (len > 0 && isspace(*ptr)) { | |
75 | ptr++; | |
76 | len--; | |
77 | } | |
78 | ||
79 | val = parse_color(word, wordlen); | |
80 | if (val >= -1) { | |
81 | if (fg == -2) { | |
82 | fg = val; | |
83 | continue; | |
84 | } | |
85 | if (bg == -2) { | |
86 | bg = val; | |
87 | continue; | |
88 | } | |
89 | goto bad; | |
90 | } | |
91 | val = parse_attr(word, wordlen); | |
92 | if (val < 0 || attr != -1) | |
93 | goto bad; | |
94 | attr = val; | |
95 | } | |
96 | ||
97 | if (attr >= 0 || fg >= 0 || bg >= 0) { | |
98 | int sep = 0; | |
99 | ||
100 | *dst++ = '\033'; | |
101 | *dst++ = '['; | |
102 | if (attr >= 0) { | |
103 | *dst++ = '0' + attr; | |
104 | sep++; | |
105 | } | |
106 | if (fg >= 0) { | |
107 | if (sep++) | |
108 | *dst++ = ';'; | |
109 | if (fg < 8) { | |
110 | *dst++ = '3'; | |
111 | *dst++ = '0' + fg; | |
112 | } else { | |
113 | dst += sprintf(dst, "38;5;%d", fg); | |
114 | } | |
115 | } | |
116 | if (bg >= 0) { | |
117 | if (sep++) | |
118 | *dst++ = ';'; | |
119 | if (bg < 8) { | |
120 | *dst++ = '4'; | |
121 | *dst++ = '0' + bg; | |
122 | } else { | |
123 | dst += sprintf(dst, "48;5;%d", bg); | |
124 | } | |
125 | } | |
126 | *dst++ = 'm'; | |
127 | } | |
128 | *dst = 0; | |
129 | return; | |
130 | bad: | |
131 | die("bad color value '%.*s' for variable '%s'", value_len, value, var); | |
132 | } | |
133 | ||
134 | int perf_config_colorbool(const char *var, const char *value, int stdout_is_tty) | |
135 | { | |
136 | if (value) { | |
137 | if (!strcasecmp(value, "never")) | |
138 | return 0; | |
139 | if (!strcasecmp(value, "always")) | |
140 | return 1; | |
141 | if (!strcasecmp(value, "auto")) | |
142 | goto auto_color; | |
143 | } | |
144 | ||
145 | /* Missing or explicit false to turn off colorization */ | |
146 | if (!perf_config_bool(var, value)) | |
147 | return 0; | |
148 | ||
149 | /* any normal truth value defaults to 'auto' */ | |
150 | auto_color: | |
151 | if (stdout_is_tty < 0) | |
152 | stdout_is_tty = isatty(1); | |
153 | if (stdout_is_tty || (pager_in_use() && pager_use_color)) { | |
154 | char *term = getenv("TERM"); | |
155 | if (term && strcmp(term, "dumb")) | |
156 | return 1; | |
157 | } | |
158 | return 0; | |
159 | } | |
160 | ||
161 | int perf_color_default_config(const char *var, const char *value, void *cb) | |
162 | { | |
163 | if (!strcmp(var, "color.ui")) { | |
164 | perf_use_color_default = perf_config_colorbool(var, value, -1); | |
165 | return 0; | |
166 | } | |
167 | ||
168 | return perf_default_config(var, value, cb); | |
169 | } | |
170 | ||
a4e3b956 ACM |
171 | static int __color_vsnprintf(char *bf, size_t size, const char *color, |
172 | const char *fmt, va_list args, const char *trail) | |
173 | { | |
174 | int r = 0; | |
175 | ||
176 | /* | |
177 | * Auto-detect: | |
178 | */ | |
179 | if (perf_use_color_default < 0) { | |
180 | if (isatty(1) || pager_in_use()) | |
181 | perf_use_color_default = 1; | |
182 | else | |
183 | perf_use_color_default = 0; | |
184 | } | |
185 | ||
186 | if (perf_use_color_default && *color) | |
e7f01d1e ACM |
187 | r += scnprintf(bf, size, "%s", color); |
188 | r += vscnprintf(bf + r, size - r, fmt, args); | |
a4e3b956 | 189 | if (perf_use_color_default && *color) |
e7f01d1e | 190 | r += scnprintf(bf + r, size - r, "%s", PERF_COLOR_RESET); |
a4e3b956 | 191 | if (trail) |
e7f01d1e | 192 | r += scnprintf(bf + r, size - r, "%s", trail); |
a4e3b956 ACM |
193 | return r; |
194 | } | |
195 | ||
8f28827a | 196 | static int __color_vfprintf(FILE *fp, const char *color, const char *fmt, |
8fc0321f IM |
197 | va_list args, const char *trail) |
198 | { | |
199 | int r = 0; | |
200 | ||
13d0ab5e IM |
201 | /* |
202 | * Auto-detect: | |
203 | */ | |
204 | if (perf_use_color_default < 0) { | |
4aa9015f | 205 | if (isatty(fileno(fp)) || pager_in_use()) |
13d0ab5e IM |
206 | perf_use_color_default = 1; |
207 | else | |
208 | perf_use_color_default = 0; | |
209 | } | |
210 | ||
211 | if (perf_use_color_default && *color) | |
8fc0321f IM |
212 | r += fprintf(fp, "%s", color); |
213 | r += vfprintf(fp, fmt, args); | |
13d0ab5e | 214 | if (perf_use_color_default && *color) |
8fc0321f IM |
215 | r += fprintf(fp, "%s", PERF_COLOR_RESET); |
216 | if (trail) | |
217 | r += fprintf(fp, "%s", trail); | |
218 | return r; | |
219 | } | |
220 | ||
a4e3b956 ACM |
221 | int color_vsnprintf(char *bf, size_t size, const char *color, |
222 | const char *fmt, va_list args) | |
223 | { | |
224 | return __color_vsnprintf(bf, size, color, fmt, args, NULL); | |
225 | } | |
226 | ||
8f28827a FW |
227 | int color_vfprintf(FILE *fp, const char *color, const char *fmt, va_list args) |
228 | { | |
229 | return __color_vfprintf(fp, color, fmt, args, NULL); | |
230 | } | |
8fc0321f | 231 | |
a4e3b956 ACM |
232 | int color_snprintf(char *bf, size_t size, const char *color, |
233 | const char *fmt, ...) | |
234 | { | |
235 | va_list args; | |
236 | int r; | |
237 | ||
238 | va_start(args, fmt); | |
239 | r = color_vsnprintf(bf, size, color, fmt, args); | |
240 | va_end(args); | |
241 | return r; | |
242 | } | |
8fc0321f IM |
243 | |
244 | int color_fprintf(FILE *fp, const char *color, const char *fmt, ...) | |
245 | { | |
246 | va_list args; | |
247 | int r; | |
13d0ab5e | 248 | |
8fc0321f | 249 | va_start(args, fmt); |
a4e3b956 | 250 | r = color_vfprintf(fp, color, fmt, args); |
8fc0321f IM |
251 | va_end(args); |
252 | return r; | |
253 | } | |
254 | ||
255 | int color_fprintf_ln(FILE *fp, const char *color, const char *fmt, ...) | |
256 | { | |
257 | va_list args; | |
258 | int r; | |
259 | va_start(args, fmt); | |
8f28827a | 260 | r = __color_vfprintf(fp, color, fmt, args, "\n"); |
8fc0321f IM |
261 | va_end(args); |
262 | return r; | |
263 | } | |
264 | ||
265 | /* | |
266 | * This function splits the buffer by newlines and colors the lines individually. | |
267 | * | |
268 | * Returns 0 on success. | |
269 | */ | |
270 | int color_fwrite_lines(FILE *fp, const char *color, | |
271 | size_t count, const char *buf) | |
272 | { | |
273 | if (!*color) | |
274 | return fwrite(buf, count, 1, fp) != 1; | |
f37a291c | 275 | |
8fc0321f IM |
276 | while (count) { |
277 | char *p = memchr(buf, '\n', count); | |
f37a291c | 278 | |
8fc0321f | 279 | if (p != buf && (fputs(color, fp) < 0 || |
f37a291c | 280 | fwrite(buf, p ? (size_t)(p - buf) : count, 1, fp) != 1 || |
8fc0321f IM |
281 | fputs(PERF_COLOR_RESET, fp) < 0)) |
282 | return -1; | |
283 | if (!p) | |
284 | return 0; | |
285 | if (fputc('\n', fp) < 0) | |
286 | return -1; | |
287 | count -= p + 1 - buf; | |
288 | buf = p + 1; | |
289 | } | |
290 | return 0; | |
291 | } | |
292 | ||
83a0944f | 293 | const char *get_percent_color(double percent) |
1e11fd82 | 294 | { |
83a0944f | 295 | const char *color = PERF_COLOR_NORMAL; |
1e11fd82 FW |
296 | |
297 | /* | |
298 | * We color high-overhead entries in red, mid-overhead | |
299 | * entries in green - and keep the low overhead places | |
300 | * normal: | |
301 | */ | |
f77c6e9c | 302 | if (fabs(percent) >= MIN_RED) |
1e11fd82 FW |
303 | color = PERF_COLOR_RED; |
304 | else { | |
f77c6e9c | 305 | if (fabs(percent) > MIN_GREEN) |
1e11fd82 FW |
306 | color = PERF_COLOR_GREEN; |
307 | } | |
308 | return color; | |
309 | } | |
8fc0321f | 310 | |
1e11fd82 FW |
311 | int percent_color_fprintf(FILE *fp, const char *fmt, double percent) |
312 | { | |
313 | int r; | |
83a0944f | 314 | const char *color; |
1e11fd82 FW |
315 | |
316 | color = get_percent_color(percent); | |
317 | r = color_fprintf(fp, color, fmt, percent); | |
318 | ||
319 | return r; | |
320 | } | |
a4e3b956 | 321 | |
1f513b2c RR |
322 | int value_color_snprintf(char *bf, size_t size, const char *fmt, double value) |
323 | { | |
324 | const char *color = get_percent_color(value); | |
325 | return color_snprintf(bf, size, color, fmt, value); | |
326 | } | |
327 | ||
53805eca | 328 | int percent_color_snprintf(char *bf, size_t size, const char *fmt, ...) |
a4e3b956 | 329 | { |
53805eca MHD |
330 | va_list args; |
331 | double percent; | |
53805eca MHD |
332 | |
333 | va_start(args, fmt); | |
334 | percent = va_arg(args, double); | |
335 | va_end(args); | |
1f513b2c | 336 | return value_color_snprintf(bf, size, fmt, percent); |
a4e3b956 | 337 | } |
d675107c NK |
338 | |
339 | int percent_color_len_snprintf(char *bf, size_t size, const char *fmt, ...) | |
340 | { | |
341 | va_list args; | |
342 | int len; | |
343 | double percent; | |
344 | const char *color; | |
345 | ||
346 | va_start(args, fmt); | |
347 | len = va_arg(args, int); | |
348 | percent = va_arg(args, double); | |
349 | va_end(args); | |
350 | ||
351 | color = get_percent_color(percent); | |
352 | return color_snprintf(bf, size, color, fmt, len, percent); | |
353 | } |