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[v1,4/7] tools: add __used and enable to override

Message ID 1471642875-5957-5-git-send-email-mcgrof@kernel.org (mailing list archive)
State New, archived
Headers show

Commit Message

Luis Chamberlain Aug. 19, 2016, 9:41 p.m. UTC 
From: "Luis R. Rodriguez" <mcgrof@kernel.org>

This adds __used, to be used later in the userspace linker-tables
sandbox. If any userspace applicaiton wants to override they can
add their own definition and then use include_next.

This definition should probably suffice for most uses cases though.

Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
---
 tools/include/linux/compiler.h | 6 ++++++
 1 file changed, 6 insertions(+)
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Patch

diff --git a/tools/include/linux/compiler.h b/tools/include/linux/compiler.h
index e33fc1df3935..556c991de212 100644
--- a/tools/include/linux/compiler.h
+++ b/tools/include/linux/compiler.h
@@ -5,6 +5,12 @@ 
 /* The "volatile" is due to gcc bugs */
 #define barrier() __asm__ __volatile__("": : :"memory")
 
+
+/* You can override as you see fit on your userspace tool */
+#ifndef __used
+#define __used          __attribute__((__used__))
+#endif
+
 #ifndef __always_inline
 # define __always_inline	inline __attribute__((always_inline))
 #endif