/* SPDX-License-Identifier: GPL-2.0-only */#ifndef __ASM_GENERIC_EXPORT_H#define __ASM_GENERIC_EXPORT_H /* * This comment block is used by fixdep. Please do not remove. * * When CONFIG_MODVERSIONS is changed from n to y, all source files having * EXPORT_SYMBOL variants must be re-compiled because genksyms is run as a * side effect of the *.o build rule. */ #ifndef KSYM_FUNC#define KSYM_FUNC(x) x#endif#ifdef CONFIG_HAVE_ARCH_PREL32_RELOCATIONS#define KSYM_ALIGN 4#elif defined(CONFIG_64BIT)#define KSYM_ALIGN 8#else#define KSYM_ALIGN 4#endif .macro __put, val, name#ifdef CONFIG_HAVE_ARCH_PREL32_RELOCATIONS .long \val - ., \name - ., 0#elif defined(CONFIG_64BIT) .quad \val, \name, 0#else .long \val, \name, 0#endif.endm /* * note on .section use: we specify progbits since usage of the "M" (SHF_MERGE) * section flag requires it. Use '%progbits' instead of '@progbits' since the * former apparently works on all arches according to the binutils source. */ .macro ___EXPORT_SYMBOL name,val,sec#if defined(CONFIG_MODULES) && !defined(__DISABLE_EXPORTS) .section ___ksymtab\sec+\name,"a" .balign KSYM_ALIGN__ksymtab_\name: __put \val, __kstrtab_\name .previous .section __ksymtab_strings,"aMS",%progbits,1__kstrtab_\name: .asciz "\name" .previous#endif.endm #if defined(CONFIG_TRIM_UNUSED_KSYMS) #include <linux/kconfig.h>#include <generated/autoksyms.h> .macro __ksym_marker sym .section ".discard.ksym","a"__ksym_marker_\sym: .previous.endm #define __EXPORT_SYMBOL(sym, val, sec) \ __ksym_marker sym; \ __cond_export_sym(sym, val, sec, __is_defined(__KSYM_##sym))#define __cond_export_sym(sym, val, sec, conf) \ ___cond_export_sym(sym, val, sec, conf)#define ___cond_export_sym(sym, val, sec, enabled) \ __cond_export_sym_##enabled(sym, val, sec)#define __cond_export_sym_1(sym, val, sec) ___EXPORT_SYMBOL sym, val, sec#define __cond_export_sym_0(sym, val, sec) /* nothing */ #else#define __EXPORT_SYMBOL(sym, val, sec) ___EXPORT_SYMBOL sym, val, sec#endif #define EXPORT_SYMBOL(name) \ __EXPORT_SYMBOL(name, KSYM_FUNC(name),)#define EXPORT_SYMBOL_GPL(name) \ __EXPORT_SYMBOL(name, KSYM_FUNC(name), _gpl)#define EXPORT_DATA_SYMBOL(name) \ __EXPORT_SYMBOL(name, name,)#define EXPORT_DATA_SYMBOL_GPL(name) \ __EXPORT_SYMBOL(name, name,_gpl) #endif
/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef __ASM_GENERIC_EXPORT_H
#define __ASM_GENERIC_EXPORT_H
/*
* This comment block is used by fixdep. Please do not remove.
*
* When CONFIG_MODVERSIONS is changed from n to y, all source files having
* EXPORT_SYMBOL variants must be re-compiled because genksyms is run as a
* side effect of the *.o build rule.
*/
#ifndef KSYM_FUNC
#define KSYM_FUNC(x) x
#endif
#ifdef CONFIG_HAVE_ARCH_PREL32_RELOCATIONS
#define KSYM_ALIGN 4
#elif defined(CONFIG_64BIT)
#define KSYM_ALIGN 8
#else
#define KSYM_ALIGN 4
#endif
.macro __put, val, name
#ifdef CONFIG_HAVE_ARCH_PREL32_RELOCATIONS
.long \val - ., \name - ., 0
#elif defined(CONFIG_64BIT)
.quad \val, \name, 0
#else
.long \val, \name, 0
#endif
.endm
/*
* note on .section use: we specify progbits since usage of the "M" (SHF_MERGE)
* section flag requires it. Use '%progbits' instead of '@progbits' since the
* former apparently works on all arches according to the binutils source.
*/
.macro ___EXPORT_SYMBOL name,val,sec
#if defined(CONFIG_MODULES) && !defined(__DISABLE_EXPORTS)
.section ___ksymtab\sec+\name,"a"
.balign KSYM_ALIGN
__ksymtab_\name:
__put \val, __kstrtab_\name
.previous
.section __ksymtab_strings,"aMS",%progbits,1
__kstrtab_\name:
.asciz "\name"
.previous
#endif
.endm
#if defined(CONFIG_TRIM_UNUSED_KSYMS)
#include <linux/kconfig.h>
#include <generated/autoksyms.h>
.macro __ksym_marker sym
.section ".discard.ksym","a"
__ksym_marker_\sym:
.previous
.endm
#define __EXPORT_SYMBOL(sym, val, sec) \
__ksym_marker sym; \
__cond_export_sym(sym, val, sec, __is_defined(__KSYM_##sym))
#define __cond_export_sym(sym, val, sec, conf) \
___cond_export_sym(sym, val, sec, conf)
#define ___cond_export_sym(sym, val, sec, enabled) \
__cond_export_sym_##enabled(sym, val, sec)
#define __cond_export_sym_1(sym, val, sec) ___EXPORT_SYMBOL sym, val, sec
#define __cond_export_sym_0(sym, val, sec) /* nothing */
#else
#define __EXPORT_SYMBOL(sym, val, sec) ___EXPORT_SYMBOL sym, val, sec
#endif
#define EXPORT_SYMBOL(name) \
__EXPORT_SYMBOL(name, KSYM_FUNC(name),)
#define EXPORT_SYMBOL_GPL(name) \
__EXPORT_SYMBOL(name, KSYM_FUNC(name), _gpl)
#define EXPORT_DATA_SYMBOL(name) \
__EXPORT_SYMBOL(name, name,)
#define EXPORT_DATA_SYMBOL_GPL(name) \
__EXPORT_SYMBOL(name, name,_gpl)
#endif