LXR linux/tools/include/tools/dis-asm-compat.h

   1/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */
   2#ifndef _TOOLS_DIS_ASM_COMPAT_H
   3#define _TOOLS_DIS_ASM_COMPAT_H
   4
   5#include <stdio.h>
   6#include <dis-asm.h>
   7
   8/* define types for older binutils version, to centralize ifdef'ery a bit */
   9#ifndef DISASM_INIT_STYLED
  10enum disassembler_style {DISASSEMBLER_STYLE_NOT_EMPTY};
  11typedef int (*fprintf_styled_ftype) (void *, enum disassembler_style, const char*, ...);
  12#endif
  13
  14/*
  15 * Trivial fprintf wrapper to be used as the fprintf_styled_func argument to
  16 * init_disassemble_info_compat() when normal fprintf suffices.
  17 */
  18static inline int fprintf_styled(void *out,
  19                                 enum disassembler_style style,
  20                                 const char *fmt, ...)
  21{
  22        va_list args;
  23        int r;
  24
  25        (void)style;
  26
  27        va_start(args, fmt);
  28        r = vfprintf(out, fmt, args);
  29        va_end(args);
  30
  31        return r;
  32}
  33
  34/*
  35 * Wrapper for init_disassemble_info() that hides version
  36 * differences. Depending on binutils version and architecture either
  37 * fprintf_func or fprintf_styled_func will be called.
  38 */
  39static inline void init_disassemble_info_compat(struct disassemble_info *info,
  40                                                void *stream,
  41                                                fprintf_ftype unstyled_func,
  42                                                fprintf_styled_ftype styled_func)
  43{
  44#ifdef DISASM_INIT_STYLED
  45        init_disassemble_info(info, stream,
  46                              unstyled_func,
  47                              styled_func);
  48#else
  49        (void)styled_func;
  50        init_disassemble_info(info, stream,
  51                              unstyled_func);
  52#endif
  53}
  54
  55#endif /* _TOOLS_DIS_ASM_COMPAT_H */
  56