This makes it possible to export symbols from assembly files, instead of having to export them through an extra ksyms.c file.
I found this nicer to implement using a gas macro than a cpp macro. Signed-off-by: Arnd Bergmann <[EMAIL PROTECTED]> --- a/include/linux/module.h +++ b/include/linux/module.h @@ -1,5 +1,7 @@ #ifndef _LINUX_MODULE_H #define _LINUX_MODULE_H + +#ifndef __ASSEMBLY__ /* * Dynamic loading of modules into the kernel. * @@ -605,4 +607,54 @@ static inline void module_remove_modinfo_attrs(struct module *mod) #define __MODULE_STRING(x) __stringify(x) +#else /* __ASSEMBLY__ */ +#include <asm/types.h> + +#ifdef CONFIG_MODULES +.macro __EXPORT_SYMBOL sym section symtab strtab + .section \section,"a",@progbits + .type \symtab, @object + .ifeq BITS_PER_LONG-32 + .align 3 +\symtab: + .long \sym + .long \strtab + .else + .align 4 +\symtab: + .quad \sym + .quad \strtab + .endif + .size \symtab,.-\symtab + .previous + + .section __ksymtab_strings,"a",@progbits + .type \strtab, @object +\strtab: + .string "\sym" + .size \strtab,.-\strtab + .previous + .endm + +#define EXPORT_SYMBOL(sym) \ + __EXPORT_SYMBOL sym,__ksymtab,__ksymtab_ ## sym,__kstrtab_ ## sym +#define EXPORT_SYMBOL_GPL(sym) \ + __EXPORT_SYMBOL sym,__ksymtab_gpl,__ksymtab_ ## sym,__kstrtab_ ## sym +#define EXPORT_SYMBOL_GPL_FUTURE(sym) \ + __EXPORT_SYMBOL sym,__ksymtab_gpl_future,__ksymtab_ ## sym,__kstrtab_ ## sym +#define EXPORT_UNUSED_SYMBOL(sym) \ + __EXPORT_SYMBOL sym,__ksymtab_unused,__ksymtab_ ## sym,__kstrtab_ ## sym +#define EXPORT_UNUSED_SYMBOL_GPL(sym) \ + __EXPORT_SYMBOL sym,__ksymtab_unused_gpl,__ksymtab_ ## sym,__kstrtab_ ## sym + +#else /* CONFIG_MODULES... */ +#define EXPORT_SYMBOL(sym) +#define EXPORT_SYMBOL_GPL(sym) +#define EXPORT_SYMBOL_GPL_FUTURE(sym) +#define EXPORT_UNUSED_SYMBOL(sym) +#define EXPORT_UNUSED_SYMBOL_GPL(sym) +#endif /* !CONFIG_MODULES... */ + +#endif /* __ASSEMBLY__ */ + #endif /* _LINUX_MODULE_H */ _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
