From: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
Define macros KLP_MODULE_RELOC and KLP_SYMPOS in
include/linux/livepatch.h to improve user-friendliness of the
livepatch annotation process.
[jmoreira:
* split up: move KLP_MODULE_RELOC from previous patch to here
* add KLP_SYMPOS
* move macros from include/uapi/livepatch.h to include/linux/livepatch.h
]
Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
Signed-off-by: Joao Moreira <jmoreira@xxxxxxx>
---
include/linux/livepatch.h | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/include/linux/livepatch.h b/include/linux/livepatch.h
index 96a75be7ef50..3956929f21bc 100644
--- a/include/linux/livepatch.h
+++ b/include/linux/livepatch.h
@@ -165,6 +165,17 @@ static inline bool klp_have_reliable_stack(void)
IS_ENABLED(CONFIG_HAVE_RELIABLE_STACKTRACE);
}
+/* Used to annotate symbol relocations in livepatches */
+#define KLP_MODULE_RELOC(obj) \
+ struct klp_module_reloc \
+ __attribute__((__section__(".klp.module_relocs." #obj)))
+
+#define KLP_SYMPOS(symbol, pos) \
+ { \
+ .sym = &symbol, \
+ .sympos = pos, \
+ },
+
#else /* !CONFIG_LIVEPATCH */
static inline int klp_module_coming(struct module *mod) { return 0; }
--
2.12.0
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