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| author | Masahiro Yamada <masahiroy@kernel.org> | 2020-05-09 12:11:33 +0900 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2020-05-12 07:39:40 +0200 |
| commit | df106a84fb035bf8e76497099f1a9629b499e49b (patch) | |
| tree | 23ef5cd5ddd8d76cd4c07517e4d381cf2d867934 /include/linux | |
| parent | 54b54c22cf3d8efa67eca6792f9ac344518d3570 (diff) | |
| download | barebox-df106a84fb035bf8e76497099f1a9629b499e49b.tar.gz barebox-df106a84fb035bf8e76497099f1a9629b499e49b.tar.xz | |
module.h: split out the EXPORT_SYMBOL into export.h
Do as Linux commit f50169324df4ad942e544386d136216c8617636a
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'include/linux')
| -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 */ |