src/arch/i386/include/bits/compiler.h

   1 #ifndef _BITS_COMPILER_H
   2 #define _BITS_COMPILER_H
   3
   4 FILE_LICENCE ( GPL2_OR_LATER );
   5
   6 #ifndef ASSEMBLY
   7
   8 /** Declare a function with standard calling conventions */
   9 #define __asmcall __attribute__ (( cdecl, regparm(0) ))
  10
  11 /**
  12  * Declare a function with libgcc implicit linkage
  13  *
  14  * It seems as though gcc expects its implicit arithmetic functions to
  15  * be cdecl, even if -mrtd is specified.  This is somewhat
  16  * inconsistent; for example, if -mregparm=3 is used then the implicit
  17  * functions do become regparm(3).
  18  *
  19  * The implicit calls to memcpy() and memset() which gcc can generate
  20  * do not seem to have this inconsistency; -mregparm and -mrtd affect
  21  * them in the same way as any other function.
  22  */
  23 #define __libgcc __attribute__ (( cdecl ))
  24
  25 #endif /* ASSEMBLY */
  26
  27 #endif /* _BITS_COMPILER_H */