[linux-2.6-block.git] / tools / perf / util / parse-branch-options.c

// SPDX-License-Identifier: GPL-2.0
#include "util/debug.h"
#include "util/event.h"
#include <subcmd/parse-options.h>
#include "util/parse-branch-options.h"
#include <stdlib.h>
#include <string.h>

#define BRANCH_OPT(n, m) \
	{ .name = n, .mode = (m) }

#define BRANCH_END { .name = NULL }

struct branch_mode {
	const char *name;
	int mode;
};

static const struct branch_mode branch_modes[] = {
	BRANCH_OPT("u", PERF_SAMPLE_BRANCH_USER),
	BRANCH_OPT("k", PERF_SAMPLE_BRANCH_KERNEL),
	BRANCH_OPT("hv", PERF_SAMPLE_BRANCH_HV),
	BRANCH_OPT("any", PERF_SAMPLE_BRANCH_ANY),
	BRANCH_OPT("any_call", PERF_SAMPLE_BRANCH_ANY_CALL),
	BRANCH_OPT("any_ret", PERF_SAMPLE_BRANCH_ANY_RETURN),
	BRANCH_OPT("ind_call", PERF_SAMPLE_BRANCH_IND_CALL),
	BRANCH_OPT("abort_tx", PERF_SAMPLE_BRANCH_ABORT_TX),
	BRANCH_OPT("in_tx", PERF_SAMPLE_BRANCH_IN_TX),
	BRANCH_OPT("no_tx", PERF_SAMPLE_BRANCH_NO_TX),
	BRANCH_OPT("cond", PERF_SAMPLE_BRANCH_COND),
	BRANCH_OPT("ind_jmp", PERF_SAMPLE_BRANCH_IND_JUMP),
	BRANCH_OPT("call", PERF_SAMPLE_BRANCH_CALL),
	BRANCH_OPT("no_flags", PERF_SAMPLE_BRANCH_NO_FLAGS),
	BRANCH_OPT("no_cycles", PERF_SAMPLE_BRANCH_NO_CYCLES),
	BRANCH_OPT("save_type", PERF_SAMPLE_BRANCH_TYPE_SAVE),
	BRANCH_OPT("stack", PERF_SAMPLE_BRANCH_CALL_STACK),
	BRANCH_OPT("hw_index", PERF_SAMPLE_BRANCH_HW_INDEX),
	BRANCH_OPT("priv", PERF_SAMPLE_BRANCH_PRIV_SAVE),
	BRANCH_OPT("counter", PERF_SAMPLE_BRANCH_COUNTERS),
	BRANCH_END
};

int parse_branch_str(const char *str, __u64 *mode)
{
#define ONLY_PLM \
	(PERF_SAMPLE_BRANCH_USER	|\
	 PERF_SAMPLE_BRANCH_KERNEL	|\
	 PERF_SAMPLE_BRANCH_HV)

	int ret = 0;
	char *p, *s;
	char *os = NULL;
	const struct branch_mode *br;

	if (str == NULL) {
		*mode = PERF_SAMPLE_BRANCH_ANY;
		return 0;
	}

	/* because str is read-only */
	s = os = strdup(str);
	if (!s)
		return -1;

	for (;;) {
		p = strchr(s, ',');
		if (p)
			*p = '\0';

		for (br = branch_modes; br->name; br++) {
			if (!strcasecmp(s, br->name))
				break;
		}
		if (!br->name) {
			ret = -1;
			pr_warning("unknown branch filter %s,"
				    " check man page\n", s);
			goto error;
		}

		*mode |= br->mode;

		if (!p)
			break;

		s = p + 1;
	}

	/* default to any branch */
	if ((*mode & ~ONLY_PLM) == 0) {
		*mode = PERF_SAMPLE_BRANCH_ANY;
	}
error:
	free(os);
	return ret;
}

int
parse_branch_stack(const struct option *opt, const char *str, int unset)
{
	__u64 *mode = (__u64 *)opt->value;

	if (unset)
		return 0;

	/*
	 * cannot set it twice, -b + --branch-filter for instance
	 */
	if (*mode) {
		pr_err("Error: Can't use --branch-any (-b) with --branch-filter (-j).\n");
		return -1;
	}

	return parse_branch_str(str, mode);
}
Commit	Line	Data
b2441318	1	// SPDX-License-Identifier: GPL-2.0
f00898f4	2	#include "util/debug.h"
8520a98d	3	#include "util/event.h"
4b6ab94e	4	#include <subcmd/parse-options.h>
f00898f4	5	#include "util/parse-branch-options.h"
215a0d30	6	#include <stdlib.h>
8520a98d	7	#include <string.h>
f00898f4 AK	8
	9	#define BRANCH_OPT(n, m) \
	10	{ .name = n, .mode = (m) }
	11
	12	#define BRANCH_END { .name = NULL }
	13
	14	struct branch_mode {
	15	const char *name;
	16	int mode;
	17	};
	18
	19	static const struct branch_mode branch_modes[] = {
	20	BRANCH_OPT("u", PERF_SAMPLE_BRANCH_USER),
	21	BRANCH_OPT("k", PERF_SAMPLE_BRANCH_KERNEL),
	22	BRANCH_OPT("hv", PERF_SAMPLE_BRANCH_HV),
	23	BRANCH_OPT("any", PERF_SAMPLE_BRANCH_ANY),
	24	BRANCH_OPT("any_call", PERF_SAMPLE_BRANCH_ANY_CALL),
	25	BRANCH_OPT("any_ret", PERF_SAMPLE_BRANCH_ANY_RETURN),
	26	BRANCH_OPT("ind_call", PERF_SAMPLE_BRANCH_IND_CALL),
	27	BRANCH_OPT("abort_tx", PERF_SAMPLE_BRANCH_ABORT_TX),
	28	BRANCH_OPT("in_tx", PERF_SAMPLE_BRANCH_IN_TX),
	29	BRANCH_OPT("no_tx", PERF_SAMPLE_BRANCH_NO_TX),
	30	BRANCH_OPT("cond", PERF_SAMPLE_BRANCH_COND),
5b68164d	31	BRANCH_OPT("ind_jmp", PERF_SAMPLE_BRANCH_IND_JUMP),
43e41adc	32	BRANCH_OPT("call", PERF_SAMPLE_BRANCH_CALL),
955f6def AK	33	BRANCH_OPT("no_flags", PERF_SAMPLE_BRANCH_NO_FLAGS),
955f6def AK	34	BRANCH_OPT("no_cycles", PERF_SAMPLE_BRANCH_NO_CYCLES),
60f83fa6	35	BRANCH_OPT("save_type", PERF_SAMPLE_BRANCH_TYPE_SAVE),
25663496	36	BRANCH_OPT("stack", PERF_SAMPLE_BRANCH_CALL_STACK),
955f6def	37	BRANCH_OPT("hw_index", PERF_SAMPLE_BRANCH_HW_INDEX),
bcb96ce6	38	BRANCH_OPT("priv", PERF_SAMPLE_BRANCH_PRIV_SAVE),
9fbb4b02	39	BRANCH_OPT("counter", PERF_SAMPLE_BRANCH_COUNTERS),
f00898f4 AK	40	BRANCH_END
	41	};
	42
ac12f676	43	int parse_branch_str(const char str, __u64 mode)
f00898f4 AK	44	{
	45	#define ONLY_PLM \
	46	(PERF_SAMPLE_BRANCH_USER \|\
	47	PERF_SAMPLE_BRANCH_KERNEL \|\
	48	PERF_SAMPLE_BRANCH_HV)
	49
ac12f676 AK	50	int ret = 0;
	51	char p, s;
	52	char *os = NULL;
f00898f4	53	const struct branch_mode *br;
f00898f4	54
ac12f676 AK	55	if (str == NULL) {
ac12f676 AK	56	*mode = PERF_SAMPLE_BRANCH_ANY;
f00898f4	57	return 0;
ac12f676	58	}
f00898f4	59
ac12f676 AK	60	/* because str is read-only */
	61	s = os = strdup(str);
	62	if (!s)
f00898f4 AK	63	return -1;
f00898f4 AK	64
ac12f676 AK	65	for (;;) {
	66	p = strchr(s, ',');
	67	if (p)
	68	*p = '\0';
f00898f4	69
ac12f676 AK	70	for (br = branch_modes; br->name; br++) {
	71	if (!strcasecmp(s, br->name))
	72	break;
	73	}
	74	if (!br->name) {
	75	ret = -1;
46cb25b1	76	pr_warning("unknown branch filter %s,"
ac12f676 AK	77	" check man page\n", s);
ac12f676 AK	78	goto error;
f00898f4	79	}
ac12f676 AK	80
	81	*mode \|= br->mode;
	82
	83	if (!p)
	84	break;
	85
	86	s = p + 1;
f00898f4	87	}
f00898f4 AK	88
	89	/* default to any branch */
	90	if ((*mode & ~ONLY_PLM) == 0) {
	91	*mode = PERF_SAMPLE_BRANCH_ANY;
	92	}
	93	error:
	94	free(os);
	95	return ret;
	96	}
ac12f676 AK	97
	98	int
	99	parse_branch_stack(const struct option opt, const char str, int unset)
	100	{
	101	__u64 mode = (__u64 )opt->value;
	102
	103	if (unset)
	104	return 0;
	105
	106	/*
	107	* cannot set it twice, -b + --branch-filter for instance
	108	*/
20ebc4a6 JC	109	if (*mode) {
20ebc4a6 JC	110	pr_err("Error: Can't use --branch-any (-b) with --branch-filter (-j).\n");
ac12f676	111	return -1;
20ebc4a6	112	}
ac12f676 AK	113
	114	return parse_branch_str(str, mode);
	115	}