linux_dsm_epyc7002/include/asm-generic/export.h
Masahiro Yamada 94e58e0ac3 export.h: remove code for prefixing symbols with underscore
CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX was selected by BLACKFIN, METAG.
They were removed by commit 4ba66a9760 ("arch: remove blackfin port"),
commit bb6fb6dfcc ("metag: Remove arch/metag/"), respectively.

No more architecture enables CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX.
Clean up the export.h headers.  I am keeping VMLINUX_SYMBOL() and
VMLINUX_SYMBOL_STR() because they are widely used.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
2018-05-17 22:44:57 +09:00

86 lines
2.0 KiB
C

#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
#else
#define __put .long
#ifndef KSYM_ALIGN
#define KSYM_ALIGN 4
#endif
#endif
#ifndef KCRC_ALIGN
#define KCRC_ALIGN 4
#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 __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