44700a4469
Produce a compile-time error if both MODE_SKAS and MODE_TT are disabled. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
38 lines
872 B
C
38 lines
872 B
C
/*
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* Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
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* Licensed under the GPL
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*/
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#ifndef __CHOOSE_MODE_H__
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#define __CHOOSE_MODE_H__
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#include "uml-config.h"
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#if defined(UML_CONFIG_MODE_TT) && defined(UML_CONFIG_MODE_SKAS)
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#define CHOOSE_MODE(tt, skas) (mode_tt ? (tt) : (skas))
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extern int mode_tt;
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static inline void *__choose_mode(void *tt, void *skas) {
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return mode_tt ? tt : skas;
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}
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#define __CHOOSE_MODE(tt, skas) (*( (typeof(tt) *) __choose_mode(&(tt), &(skas))))
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#elif defined(UML_CONFIG_MODE_SKAS)
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#define CHOOSE_MODE(tt, skas) (skas)
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#elif defined(UML_CONFIG_MODE_TT)
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#define CHOOSE_MODE(tt, skas) (tt)
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#else
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#error CONFIG_MODE_SKAS and CONFIG_MODE_TT are both disabled
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#endif
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#define CHOOSE_MODE_PROC(tt, skas, args...) \
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CHOOSE_MODE(tt(args), skas(args))
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#ifndef __CHOOSE_MODE
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#define __CHOOSE_MODE(tt, skas) CHOOSE_MODE(tt, skas)
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#endif
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#endif
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