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#ifndef __ASM_GENERIC_EXPORT_H #define __ASM_GENERIC_EXPORT_H #ifndef KSYM_FUNC #define KSYM_FUNC(x) x #endif #ifdef CONFIG_64BIT #define __put .quad #ifndef KSYM_ALIGN #define KSYM_ALIGN 8 #endif #ifndef KCRC_ALIGN #define KCRC_ALIGN 8 #endif #else #define __put .long #ifndef KSYM_ALIGN #define KSYM_ALIGN 4 #endif #ifndef KCRC_ALIGN #define KCRC_ALIGN 4 #endif #endif #ifdef CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX #define KSYM(name) _##name #else #define KSYM(name) name #endif /* * 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 KSYM(__ksymtab_\name) .section ___ksymtab\sec+\name,"a" .balign KSYM_ALIGN KSYM(__ksymtab_\name): __put \val, KSYM(__kstrtab_\name) .previous .section __ksymtab_strings,"a" KSYM(__kstrtab_\name): #ifdef CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX .asciz "_\name" #else .asciz "\name" #endif .previous #ifdef CONFIG_MODVERSIONS .section ___kcrctab\sec+\name,"a" .balign KCRC_ALIGN KSYM(__kcrctab_\name): __put KSYM(__crc_\name) .weak KSYM(__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, config_enabled(__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(KSYM(name)),) #define EXPORT_SYMBOL_GPL(name) \ __EXPORT_SYMBOL(name, KSYM_FUNC(KSYM(name)), _gpl) #define EXPORT_DATA_SYMBOL(name) \ __EXPORT_SYMBOL(name, KSYM(name),) #define EXPORT_DATA_SYMBOL_GPL(name) \ __EXPORT_SYMBOL(name, KSYM(name),_gpl) #endif