diff options
Diffstat (limited to 'include/linux/export.h')
| -rw-r--r-- | include/linux/export.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/include/linux/export.h b/include/linux/export.h new file mode 100644 index 0000000000..88d318bd8a --- /dev/null +++ b/include/linux/export.h @@ -0,0 +1,39 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef _LINUX_EXPORT_H +#define _LINUX_EXPORT_H + +#define THIS_MODULE 0 + +#ifdef CONFIG_MODULES + +struct kernel_symbol +{ + unsigned long value; + const char *name; +}; + +/* For every exported symbol, place a struct in the __ksymtab section */ +#define __EXPORT_SYMBOL(sym, sec) \ + extern typeof(sym) sym; \ + static const char __ustrtab_##sym[] \ + __attribute__((section("__usymtab_strings"))) \ + = MODULE_SYMBOL_PREFIX #sym; \ + static const struct kernel_symbol __usymtab_##sym \ + __used \ + __attribute__((section("__usymtab" sec), unused)) \ + = { (unsigned long)&sym, __ustrtab_##sym } + +#define EXPORT_SYMBOL(sym) \ + __EXPORT_SYMBOL(sym, "") + +#define EXPORT_SYMBOL_GPL(sym) \ + __EXPORT_SYMBOL(sym, "") + +#else + +#define EXPORT_SYMBOL(sym) +#define EXPORT_SYMBOL_GPL(sym) + +#endif /* CONFIG_MODULES */ + +#endif /* _LINUX_EXPORT_H */ |