Cregit: Linux 6.4: trace

Contributors: 8
Author	Tokens	Token Proportion	Commits	Commit Proportion
Jiri Olsa	40	31.75%	2	13.33%
Alexei Starovoitov	35	27.78%	4	26.67%
Andrii Nakryiko	22	17.46%	3	20.00%
Yonghong Song	15	11.90%	2	13.33%
Hao Luo	10	7.94%	1	6.67%
Jakub Kiciński	2	1.59%	1	6.67%
Greg Kroah-Hartman	1	0.79%	1	6.67%
Toke Höiland-Jörgensen	1	0.79%	1	6.67%
Total	126		15

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __TRACE_HELPER_H
#define __TRACE_HELPER_H

#include <bpf/libbpf.h>

#define __ALIGN_MASK(x, mask)	(((x)+(mask))&~(mask))
#define ALIGN(x, a)		__ALIGN_MASK(x, (typeof(x))(a)-1)

struct ksym {
	long addr;
	char *name;
};

int load_kallsyms(void);
int load_kallsyms_refresh(void);

struct ksym *ksym_search(long key);
long ksym_get_addr(const char *name);

/* open kallsyms and find addresses on the fly, faster than load + search. */
int kallsyms_find(const char *sym, unsigned long long *addr);

void read_trace_pipe(void);

ssize_t get_uprobe_offset(const void *addr);
ssize_t get_rel_offset(uintptr_t addr);

int read_build_id(const char *path, char *build_id, size_t size);

#endif

trace_helpers.h