Eric Lee / smarc-fsl-linux-kernel

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tools/objtool/warn.h 1.34 KB
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1ccea77e2   Thomas Gleixner   treewide: Replace... 
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  /* SPDX-License-Identifier: GPL-2.0-or-later */
442f04c34   Josh Poimboeuf   objtool: Add tool... 
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  /*
   * Copyright (C) 2015 Josh Poimboeuf <jpoimboe@redhat.com>
442f04c34   Josh Poimboeuf   objtool: Add tool... 
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   */
  
  #ifndef _WARN_H
  #define _WARN_H
baa41469a   Josh Poimboeuf   objtool: Implemen... 
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  #include <stdlib.h>
  #include <string.h>
  #include <sys/types.h>
  #include <sys/stat.h>
  #include <fcntl.h>
  #include "elf.h"
442f04c34   Josh Poimboeuf   objtool: Add tool... 
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  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_containing_func(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 "
  ",	\
  		objname, ##__VA_ARGS__)
  
  #define WARN_FUNC(format, sec, offset, ...)		\
  ({							\
  	char *_str = offstr(sec, offset);		\
  	WARN("%s: " format, _str, ##__VA_ARGS__);	\
  	free(_str);					\
  })
7697eee3d   Peter Zijlstra   objtool: Add --ba... 
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  #define BT_FUNC(format, insn, ...)			\
  ({							\
  	struct instruction *_insn = (insn);		\
  	char *_str = offstr(_insn->sec, _insn->offset); \
  	WARN("  %s: " format, _str, ##__VA_ARGS__);	\
  	free(_str);					\
  })
baa41469a   Josh Poimboeuf   objtool: Implemen... 
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  #define WARN_ELF(format, ...)				\
  	WARN(format ": %s", ##__VA_ARGS__, elf_errmsg(-1))
442f04c34   Josh Poimboeuf   objtool: Add tool... 
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  #endif /* _WARN_H */