195 lines
4.3 KiB
C
195 lines
4.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* U-Boot - linkage.h
|
|
*
|
|
* Copyright (c) 2005-2007 Analog Devices Inc.
|
|
*/
|
|
|
|
#ifndef _LINUX_LINKAGE_H
|
|
#define _LINUX_LINKAGE_H
|
|
|
|
#include <asm/linkage.h>
|
|
|
|
/* Some toolchains use other characters (e.g. '`') to mark new line in macro */
|
|
#ifndef ASM_NL
|
|
#define ASM_NL ;
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
#define CPP_ASMLINKAGE extern "C"
|
|
#else
|
|
#define CPP_ASMLINKAGE
|
|
#endif
|
|
|
|
#ifndef asmlinkage
|
|
#define asmlinkage CPP_ASMLINKAGE
|
|
#endif
|
|
|
|
#define SYMBOL_NAME_STR(X) #X
|
|
#define SYMBOL_NAME(X) X
|
|
#ifdef __STDC__
|
|
#define SYMBOL_NAME_LABEL(X) X##:
|
|
#else
|
|
#define SYMBOL_NAME_LABEL(X) X:
|
|
#endif
|
|
|
|
#ifndef __ALIGN
|
|
#define __ALIGN .align 4
|
|
#endif
|
|
|
|
#ifndef __ALIGN_STR
|
|
#define __ALIGN_STR ".align 4"
|
|
#endif
|
|
|
|
#ifdef __ASSEMBLY__
|
|
|
|
#define ALIGN __ALIGN
|
|
#define ALIGN_STR __ALIGN_STR
|
|
|
|
/* SYM_T_FUNC -- type used by assembler to mark functions */
|
|
#ifndef SYM_T_FUNC
|
|
#define SYM_T_FUNC STT_FUNC
|
|
#endif
|
|
|
|
/* SYM_T_OBJECT -- type used by assembler to mark data */
|
|
#ifndef SYM_T_OBJECT
|
|
#define SYM_T_OBJECT STT_OBJECT
|
|
#endif
|
|
|
|
/* SYM_T_NONE -- type used by assembler to mark entries of unknown type */
|
|
#ifndef SYM_T_NONE
|
|
#define SYM_T_NONE STT_NOTYPE
|
|
#endif
|
|
|
|
/* SYM_A_* -- align the symbol? */
|
|
#define SYM_A_ALIGN ALIGN
|
|
#define SYM_A_NONE /* nothing */
|
|
|
|
/* SYM_L_* -- linkage of symbols */
|
|
#define SYM_L_GLOBAL(name) .globl name
|
|
#define SYM_L_WEAK(name) .weak name
|
|
#define SYM_L_LOCAL(name) /* nothing */
|
|
|
|
#define LENTRY(name) \
|
|
ALIGN ASM_NL \
|
|
SYMBOL_NAME_LABEL(name)
|
|
|
|
#define ENTRY(name) \
|
|
.globl SYMBOL_NAME(name) ASM_NL \
|
|
LENTRY(name)
|
|
|
|
#define WEAK(name) \
|
|
.weak SYMBOL_NAME(name) ASM_NL \
|
|
LENTRY(name)
|
|
|
|
#ifndef END
|
|
#define END(name) \
|
|
.size name, .-name
|
|
#endif
|
|
|
|
#ifndef ENDPROC
|
|
#define ENDPROC(name) \
|
|
.type name STT_FUNC ASM_NL \
|
|
END(name)
|
|
#endif
|
|
|
|
/* === generic annotations === */
|
|
/* SYM_ENTRY -- use only if you have to for non-paired symbols */
|
|
#ifndef SYM_ENTRY
|
|
#define SYM_ENTRY(name, linkage, align...) \
|
|
linkage(name) ASM_NL \
|
|
align ASM_NL \
|
|
name :
|
|
#endif
|
|
|
|
/* SYM_START -- use only if you have to */
|
|
#ifndef SYM_START
|
|
#define SYM_START(name, linkage, align...) \
|
|
SYM_ENTRY(name, linkage, align)
|
|
#endif
|
|
|
|
/* SYM_END -- use only if you have to */
|
|
#ifndef SYM_END
|
|
#define SYM_END(name, sym_type) \
|
|
.type name sym_type ASM_NL \
|
|
.size name, . -name
|
|
#endif
|
|
|
|
/*
|
|
* SYM_FUNC_START_ALIAS -- use where there are two global names for one
|
|
* function
|
|
*/
|
|
#ifndef SYM_FUNC_START_ALIAS
|
|
#define SYM_FUNC_START_ALIAS(name) \
|
|
SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN)
|
|
#endif
|
|
|
|
/* SYM_FUNC_START -- use for global functions */
|
|
#ifndef SYM_FUNC_START
|
|
/*
|
|
* The same as SYM_FUNC_START_ALIAS, but we will need to distinguish these two
|
|
* later.
|
|
*/
|
|
#define SYM_FUNC_START(name) \
|
|
SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN)
|
|
#endif
|
|
|
|
/* SYM_FUNC_START_WEAK -- use for weak functions */
|
|
#ifndef SYM_FUNC_START_WEAK
|
|
#define SYM_FUNC_START_WEAK(name) \
|
|
SYM_START(name, SYM_L_WEAK, SYM_A_ALIGN)
|
|
#endif
|
|
|
|
/* SYM_FUNC_END_ALIAS -- the end of LOCAL_ALIASed or ALIASed function */
|
|
#ifndef SYM_FUNC_END_ALIAS
|
|
#define SYM_FUNC_END_ALIAS(name) \
|
|
SYM_END(name, SYM_T_FUNC)
|
|
#endif
|
|
|
|
/*
|
|
* SYM_FUNC_END -- the end of SYM_FUNC_START_LOCAL, SYM_FUNC_START,
|
|
* SYM_FUNC_START_WEAK, ...
|
|
*/
|
|
#ifndef SYM_FUNC_END
|
|
/* the same as SYM_FUNC_END_ALIAS, see comment near SYM_FUNC_START */
|
|
#define SYM_FUNC_END(name) \
|
|
SYM_END(name, SYM_T_FUNC)
|
|
#endif
|
|
|
|
/* SYM_CODE_START -- use for non-C (special) functions */
|
|
#ifndef SYM_CODE_START
|
|
#define SYM_CODE_START(name) \
|
|
SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN)
|
|
#endif
|
|
|
|
/* SYM_CODE_START_NOALIGN -- use for non-C (special) functions, w/o alignment */
|
|
#ifndef SYM_CODE_START_NOALIGN
|
|
#define SYM_CODE_START_NOALIGN(name) \
|
|
SYM_START(name, SYM_L_GLOBAL, SYM_A_NONE)
|
|
#endif
|
|
|
|
/* SYM_CODE_START_LOCAL -- use for local non-C (special) functions */
|
|
#ifndef SYM_CODE_START_LOCAL
|
|
#define SYM_CODE_START_LOCAL(name) \
|
|
SYM_START(name, SYM_L_LOCAL, SYM_A_ALIGN)
|
|
#endif
|
|
|
|
/*
|
|
* SYM_CODE_START_LOCAL_NOALIGN -- use for local non-C (special) functions,
|
|
* w/o alignment
|
|
*/
|
|
#ifndef SYM_CODE_START_LOCAL_NOALIGN
|
|
#define SYM_CODE_START_LOCAL_NOALIGN(name) \
|
|
SYM_START(name, SYM_L_LOCAL, SYM_A_NONE)
|
|
#endif
|
|
|
|
/* SYM_CODE_END -- the end of SYM_CODE_START_LOCAL, SYM_CODE_START, ... */
|
|
#ifndef SYM_CODE_END
|
|
#define SYM_CODE_END(name) \
|
|
SYM_END(name, SYM_T_NONE)
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#endif
|