[mirror_ubuntu-jammy-kernel.git] / tools / objtool / warn.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2015 Josh Poimboeuf <jpoimboe@redhat.com>
 */

#ifndef _WARN_H
#define _WARN_H

#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "elf.h"

extern const char *objname;

static inline char *offstr(struct section *sec, unsigned long offset)
{
	struct symbol *func;
	char *name, *str;
	unsigned long name_off;

	func = find_func_containing(sec, offset);
	if (func) {
		name = func->name;
		name_off = offset - func->offset;
	} else {
		name = sec->name;
		name_off = offset;
	}

	str = malloc(strlen(name) + 20);

	if (func)
		sprintf(str, "%s()+0x%lx", name, name_off);
	else
		sprintf(str, "%s+0x%lx", name, name_off);

	return str;
}

#define WARN(format, ...)				\
	fprintf(stderr,					\
		"%s: warning: objtool: " format "\n",	\
		objname, ##__VA_ARGS__)

#define WARN_FUNC(format, sec, offset, ...)		\
({							\
	char *_str = offstr(sec, offset);		\
	WARN("%s: " format, _str, ##__VA_ARGS__);	\
	free(_str);					\
})

#define BT_FUNC(format, insn, ...)			\
({							\
	struct instruction *_insn = (insn);		\
	char *_str = offstr(_insn->sec, _insn->offset); \
	WARN("  %s: " format, _str, ##__VA_ARGS__);	\
	free(_str);					\
})

#define WARN_ELF(format, ...)				\
	WARN(format ": %s", ##__VA_ARGS__, elf_errmsg(-1))

#endif /* _WARN_H */
Commit	Line	Data
1ccea77e	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
442f04c3 JP	2	/*
442f04c3 JP	3	* Copyright (C) 2015 Josh Poimboeuf <jpoimboe@redhat.com>
442f04c3 JP	4	*/
	5
	6	#ifndef _WARN_H
	7	#define _WARN_H
	8
baa41469 JP	9	#include <stdlib.h>
	10	#include <string.h>
	11	#include <sys/types.h>
	12	#include <sys/stat.h>
	13	#include <fcntl.h>
	14	#include "elf.h"
	15
442f04c3 JP	16	extern const char *objname;
	17
	18	static inline char offstr(struct section sec, unsigned long offset)
	19	{
	20	struct symbol *func;
	21	char name, str;
	22	unsigned long name_off;
	23
53d20720	24	func = find_func_containing(sec, offset);
442f04c3 JP	25	if (func) {
	26	name = func->name;
	27	name_off = offset - func->offset;
	28	} else {
	29	name = sec->name;
	30	name_off = offset;
	31	}
	32
	33	str = malloc(strlen(name) + 20);
	34
	35	if (func)
	36	sprintf(str, "%s()+0x%lx", name, name_off);
	37	else
	38	sprintf(str, "%s+0x%lx", name, name_off);
	39
	40	return str;
	41	}
	42
	43	#define WARN(format, ...) \
	44	fprintf(stderr, \
	45	"%s: warning: objtool: " format "\n", \
	46	objname, ##__VA_ARGS__)
	47
	48	#define WARN_FUNC(format, sec, offset, ...) \
	49	({ \
	50	char *_str = offstr(sec, offset); \
	51	WARN("%s: " format, _str, ##__VA_ARGS__); \
	52	free(_str); \
	53	})
	54
7697eee3 PZ	55	#define BT_FUNC(format, insn, ...) \
	56	({ \
	57	struct instruction *_insn = (insn); \
	58	char *_str = offstr(_insn->sec, _insn->offset); \
	59	WARN(" %s: " format, _str, ##__VA_ARGS__); \
	60	free(_str); \
	61	})
	62
baa41469 JP	63	#define WARN_ELF(format, ...) \
	64	WARN(format ": %s", ##__VA_ARGS__, elf_errmsg(-1))
	65
442f04c3	66	#endif /* _WARN_H */