Introduce per uprobe arch info structure.
Used to store arch specific details. For example: details to handle
Rip relative instructions in X86_64.

Signed-off-by: Jim Keniston <redacted>
Signed-off-by: Srikar Dronamraju <redacted>
---
 include/linux/uprobes.h |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/include/linux/uprobes.h b/include/linux/uprobes.h
index dd308fa..44f28dc 100644
--- a/include/linux/uprobes.h
+++ b/include/linux/uprobes.h

@@ -29,7 +29,7 @@ struct vm_area_struct;
 #ifdef CONFIG_ARCH_SUPPORTS_UPROBES
 #include <asm/uprobes.h>
 #else
-
+struct uprobe_arch_info {};
 #define MAX_UINSN_BYTES 4
 #endif
 

@@ -60,6 +60,7 @@ struct uprobe {
 	atomic_t		ref;
 	struct rw_semaphore	consumer_rwsem;
 	struct list_head	pending_list;
+	struct uprobe_arch_info arch_info;
 	struct uprobe_consumer	*consumers;
 	struct inode		*inode;		/* Also hold a ref to inode */
 	loff_t			offset;

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