#ifndef __ASM_GENERIC_EXPORT_H #define __ASM_GENERIC_EXPORT_H #ifndef KSYM_FUNC #define KSYM_FUNC(x) x #endif #ifdef CONFIG_64BIT #ifndef KSYM_ALIGN #define KSYM_ALIGN 8 #endif #else #ifndef KSYM_ALIGN #define KSYM_ALIGN 4 #endif #endif #ifndef KCRC_ALIGN #define KCRC_ALIGN 4 #endif .macro __put, val, name #ifdef CONFIG_HAVE_ARCH_PREL32_RELOCATIONS .long \val - ., \name - . #elif defined(CONFIG_64BIT) .quad \val, \name #else .long \val, \name #endif .endm /* * note on .section use: @progbits vs %progbits nastiness doesn't matter, * since we immediately emit into those sections anyway. */ .macro ___EXPORT_SYMBOL name,val,sec #ifdef CONFIG_MODULES .globl __ksymtab_\name .section ___ksymtab\sec+\name,"a" .balign KSYM_ALIGN __ksymtab_\name: __put \val, __kstrtab_\name .previous .section __ksymtab_strings,"a" __kstrtab_\name: .asciz "\name" .previous #ifdef CONFIG_MODVERSIONS .section ___kcrctab\sec+\name,"a" .balign KCRC_ALIGN __kcrctab_\name: #if defined(CONFIG_MODULE_REL_CRCS) .long __crc_\name - . #else .long __crc_\name #endif .weak __crc_\name .previous #endif #endif .endm #undef __put #if defined(__KSYM_DEPS__) #define __EXPORT_SYMBOL(sym, val, sec) === __KSYM_##sym === #elif defined(CONFIG_TRIM_UNUSED_KSYMS) #include <linux/kconfig.h> #include <generated/autoksyms.h> #define __EXPORT_SYMBOL(sym, val, sec) \ __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