aboutsummaryrefslogtreecommitdiffstats
path: root/tools/perf/scripts/python/failed-syscalls-by-pid.py
diff options
context:
space:
mode:
Diffstat (limited to 'tools/perf/scripts/python/failed-syscalls-by-pid.py')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.2 (git 2.25.0) at 2026-06-17 02:01:30 -0400
id='n224' href='#n224'>224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 
/*
 * Test cases for lib/string_helpers.c module.
 */
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/random.h>
#include <linux/string.h>
#include <linux/string_helpers.h>

static __init bool test_string_check_buf(const char *name, unsigned int flags,
					 char *in, size_t p,
					 char *out_real, size_t q_real,
					 char *out_test, size_t q_test)
{
	if (q_real == q_test && !memcmp(out_test, out_real, q_test))
		return true;

	pr_warn("Test '%s' failed: flags = %u\n", name, flags);

	print_hex_dump(KERN_WARNING, "Input: ", DUMP_PREFIX_NONE, 16, 1,
		       in, p, true);
	print_hex_dump(KERN_WARNING, "Expected: ", DUMP_PREFIX_NONE, 16, 1,
		       out_test, q_test, true);
	print_hex_dump(KERN_WARNING, "Got: ", DUMP_PREFIX_NONE, 16, 1,
		       out_real, q_real, true);

	return false;
}

struct test_string {
	const char *in;
	const char *out;
	unsigned int flags;
};

static const struct test_string strings[] __initconst = {
	{
		.in = "\\f\\ \\n\\r\\t\\v",
		.out = "\f\\ \n\r\t\v",
		.flags = UNESCAPE_SPACE,
	},
	{
		.in = "\\40\\1\\387\\0064\\05\\040\\8a\\110\\777",
		.out = " \001\00387\0064\005 \\8aH?7",
		.flags = UNESCAPE_OCTAL,
	},
	{
		.in = "\\xv\\xa\\x2c\\xD\\x6f2",
		.out = "\\xv\n,\ro2",
		.flags = UNESCAPE_HEX,
	},
	{
		.in = "\\h\\\\\\\"\\a\\e\\",
		.out = "\\h\\\"\a\e\\",
		.flags = UNESCAPE_SPECIAL,
	},
};

static void __init test_string_unescape(const char *name, unsigned int flags,
					bool inplace)
{
	int q_real = 256;
	char *in = kmalloc(q_real, GFP_KERNEL);
	char *out_test = kmalloc(q_real, GFP_KERNEL);
	char *out_real = kmalloc(q_real, GFP_KERNEL);
	int i, p = 0, q_test = 0;

	if (!in || !out_test || !out_real)
		goto out;

	for (i = 0; i < ARRAY_SIZE(strings); i++) {
		const char *s = strings[i].in;
		int len = strlen(strings[i].in);

		/* Copy string to in buffer */
		memcpy(&in[p], s, len);
		p += len;

		/* Copy expected result for given flags */
		if (flags & strings[i].flags) {
			s = strings[i].out;
			len = strlen(strings[i].out);
		}
		memcpy(&out_test[q_test], s, len);
		q_test += len;
	}
	in[p++] = '\0';

	/* Call string_unescape and compare result */
	if (inplace) {
		memcpy(out_real, in, p);
		if (flags == UNESCAPE_ANY)
			q_real = string_unescape_any_inplace(out_real);
		else
			q_real = string_unescape_inplace(out_real, flags);
	} else if (flags == UNESCAPE_ANY) {
		q_real = string_unescape_any(in, out_real, q_real);
	} else {
		q_real = string_unescape(in, out_real, q_real, flags);
	}

	test_string_check_buf(name, flags, in, p - 1, out_real, q_real,
			      out_test, q_test);
out:
	kfree(out_real);
	kfree(out_test);
	kfree(in);
}

struct test_string_1 {
	const char *out;
	unsigned int flags;
};

#define	TEST_STRING_2_MAX_S1		32
struct test_string_2 {
	const char *in;
	struct test_string_1 s1[TEST_STRING_2_MAX_S1];
};

#define	TEST_STRING_2_DICT_0		NULL
static const struct test_string_2 escape0[] __initconst = {{
	.in = "\f\\ \n\r\t\v",