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95 lines
2.2 KiB
95 lines
2.2 KiB
#ifndef __ASM_GENERIC_EXPORT_H |
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#define __ASM_GENERIC_EXPORT_H |
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#ifndef KSYM_FUNC |
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#define KSYM_FUNC(x) x |
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#endif |
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#ifdef CONFIG_64BIT |
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#define __put .quad |
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#ifndef KSYM_ALIGN |
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#define KSYM_ALIGN 8 |
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#endif |
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#else |
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#define __put .long |
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#ifndef KSYM_ALIGN |
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#define KSYM_ALIGN 4 |
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#endif |
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#endif |
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#ifndef KCRC_ALIGN |
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#define KCRC_ALIGN 4 |
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#endif |
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#ifdef CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX |
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#define KSYM(name) _##name |
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#else |
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#define KSYM(name) name |
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#endif |
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/* |
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* note on .section use: @progbits vs %progbits nastiness doesn't matter, |
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* since we immediately emit into those sections anyway. |
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*/ |
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.macro ___EXPORT_SYMBOL name,val,sec |
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#ifdef CONFIG_MODULES |
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.globl KSYM(__ksymtab_\name) |
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.section ___ksymtab\sec+\name,"a" |
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.balign KSYM_ALIGN |
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KSYM(__ksymtab_\name): |
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__put \val, KSYM(__kstrtab_\name) |
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.previous |
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.section __ksymtab_strings,"a" |
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KSYM(__kstrtab_\name): |
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#ifdef CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX |
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.asciz "_\name" |
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#else |
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.asciz "\name" |
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#endif |
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.previous |
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#ifdef CONFIG_MODVERSIONS |
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.section ___kcrctab\sec+\name,"a" |
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.balign KCRC_ALIGN |
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KSYM(__kcrctab_\name): |
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#if defined(CONFIG_MODULE_REL_CRCS) |
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.long KSYM(__crc_\name) - . |
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#else |
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.long KSYM(__crc_\name) |
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#endif |
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.weak KSYM(__crc_\name) |
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.previous |
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#endif |
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#endif |
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.endm |
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#undef __put |
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#if defined(__KSYM_DEPS__) |
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#define __EXPORT_SYMBOL(sym, val, sec) === __KSYM_##sym === |
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#elif defined(CONFIG_TRIM_UNUSED_KSYMS) |
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#include <linux/kconfig.h> |
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#include <generated/autoksyms.h> |
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#define __EXPORT_SYMBOL(sym, val, sec) \ |
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__cond_export_sym(sym, val, sec, __is_defined(__KSYM_##sym)) |
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#define __cond_export_sym(sym, val, sec, conf) \ |
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___cond_export_sym(sym, val, sec, conf) |
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#define ___cond_export_sym(sym, val, sec, enabled) \ |
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__cond_export_sym_##enabled(sym, val, sec) |
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#define __cond_export_sym_1(sym, val, sec) ___EXPORT_SYMBOL sym, val, sec |
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#define __cond_export_sym_0(sym, val, sec) /* nothing */ |
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#else |
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#define __EXPORT_SYMBOL(sym, val, sec) ___EXPORT_SYMBOL sym, val, sec |
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#endif |
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#define EXPORT_SYMBOL(name) \ |
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__EXPORT_SYMBOL(name, KSYM_FUNC(KSYM(name)),) |
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#define EXPORT_SYMBOL_GPL(name) \ |
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__EXPORT_SYMBOL(name, KSYM_FUNC(KSYM(name)), _gpl) |
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#define EXPORT_DATA_SYMBOL(name) \ |
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__EXPORT_SYMBOL(name, KSYM(name),) |
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#define EXPORT_DATA_SYMBOL_GPL(name) \ |
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__EXPORT_SYMBOL(name, KSYM(name),_gpl) |
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#endif
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