On Wed, 3 Feb 2016, Al Viro wrote: > From: Al Viro <viro@xxxxxxxxxxxxxxxxxx> > > Add asm-usable variants of EXPORT_SYMBOL/EXPORT_SYMBOL_GPL. This > commit just adds the default implementation; most of the architectures > can simply add export.h to asm/Kbuild and start using <asm/export.h> > from assembler. The rest needs to have their <asm/export.h> define > everal macros and then explicitly include <asm-generic/export.h> [...] FYI, here's the needed changes to make it work with my autoksyms series. This is the asm/export.h version of http://lkml.org/lkml/2016/2/10/5. diff --git a/include/asm-generic/export.h b/include/asm-generic/export.h index 03b51ac4cc..b450da9d68 100644 --- a/include/asm-generic/export.h +++ b/include/asm-generic/export.h @@ -59,8 +59,24 @@ KSYM(__kcrctab_\name): #endif .endm #undef __put -#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 + +#ifdef CONFIG_TRIM_UNUSED_KSYMS +#include <linux/kconfig.h> +#include <generated/autoksyms.h> +#define ___EXPORT_SYMBOL(name, val, sec) \ + __cond_export_sym(name, val, sec, config_enabled(__KSYM_##name)) +#define __cond_export_sym(name, val, sec, conf) \ + ___cond_export_sym(name, val, sec, conf) +#define ___cond_export_sym(name, val, sec, enabled) \ + __cond_export_sym_##enabled(name, val, sec) +#define __cond_export_sym_1(name, val, sec) __EXPORT_SYMBOL name, val, sec +#define __cond_export_sym_0(name, val, sec) /* nothing */ +#else +#define ___EXPORT_SYMBOL(name, val, sec) __EXPORT_SYMBOL name, 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
