46 lines
1 KiB
C
46 lines
1 KiB
C
/*
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* Copyright 2014, General Dynamics C4 Systems
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*
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* This software may be distributed and modified according to the terms of
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* the GNU General Public License version 2. Note that NO WARRANTY is provided.
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* See "LICENSE_GPLv2.txt" for details.
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*
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* @TAG(GD_GPL)
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*/
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#ifndef __MACHINE_ASSEMBLER_H__
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#define __MACHINE_ASSEMBLER_H__
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/* This file contains useful macros for assembly code. */
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#ifdef __ASSEMBLER__
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/*
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* Use BEGIN_FUNC(), END_FUNC() around assembly functions to annotate them
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* correctly to the assembler.
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*/
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#define BEGIN_FUNC(_name) \
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.global _name ; \
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.type _name, %function ; \
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_name:
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#define END_FUNC(_name) \
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.size _name, .-_name
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/*
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* BEGIN_FUNC_STATIC() and END_FUNC_STATIC() do as above, but without making a
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* global declaration. (c.f. static functions in C).
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*/
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#define BEGIN_FUNC_STATIC(_name) \
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.type _name, %function ; \
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_name:
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#define END_FUNC_STATIC(_name) \
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.size _name, .-_name
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#else /* !__ASSEMBLER__ */
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#warning "Including assembly-specific header in C code"
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#endif
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#endif /* __MACHINE_ASSEMBLER_H__ */
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