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
  10 enum disassembler_style {DISASSEMBLER_STYLE_NOT_EMPTY};
  11 typedef 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  */
  18 static 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  */
  39 static 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 */