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- #ifndef _BITS_COMPILER_H
- #define _BITS_COMPILER_H
-
- FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
- /** Dummy relocation type */
- #define RELOC_TYPE_NONE R_386_NONE
-
- #ifndef ASSEMBLY
-
- /** Declare a function with standard calling conventions */
- #define __asmcall __attribute__ (( cdecl, regparm(0) ))
-
- /**
- * Declare a function with libgcc implicit linkage
- *
- * It seems as though gcc expects its implicit arithmetic functions to
- * be cdecl, even if -mrtd is specified. This is somewhat
- * inconsistent; for example, if -mregparm=3 is used then the implicit
- * functions do become regparm(3).
- *
- * The implicit calls to memcpy() and memset() which gcc can generate
- * do not seem to have this inconsistency; -mregparm and -mrtd affect
- * them in the same way as any other function.
- *
- * Update (25/4/14): it appears that more recent gcc versions do allow
- * -mrtd to affect calls to the implicit arithmetic functions. There
- * is nothing obvious in the gcc changelogs to indicate precisely when
- * this happened. From experimentation with available gcc versions,
- * the change occurred sometime between v4.6.3 and v4.7.2. We assume
- * that only versions up to v4.6.x require the special treatment.
- */
- #if ( __GNUC__ < 4 ) || ( ( __GNUC__ == 4 ) && ( __GNUC_MINOR__ <= 6 ) )
- #define __libgcc __attribute__ (( cdecl ))
- #else
- #define __libgcc
- #endif
-
- #endif /* ASSEMBLY */
-
- #endif /* _BITS_COMPILER_H */
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