From: Ross Lagerwall <ross.lagerwall@citrix.com>
Date: Tue, 3 Nov 2015 14:44:49 +0000 (+0000)
Subject: Add 64 bytes of padding to xsplice_patch_funcs structure
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=be95e2474439fbdddcd347e7ea1bd3a842927351;p=livepatch-build-tools.git

Add 64 bytes of padding to xsplice_patch_funcs structure

This gives the hypervisor scratch space for undo buffers and possibly
other uses.
---

diff --git a/common.h b/common.h
index d78275c..e90455c 100644
--- a/common.h
+++ b/common.h
@@ -122,7 +122,7 @@ struct xsplice_patch_func {
 	unsigned long old_addr;
 	unsigned long old_size;
 	char *name;
-	unsigned char undo[8];
+	unsigned char pad[64];
 };
 
 struct special_section {
diff --git a/create-diff-object.c b/create-diff-object.c
index 15c4115..fb9ef0b 100644
--- a/create-diff-object.c
+++ b/create-diff-object.c
@@ -1508,7 +1508,7 @@ static void xsplice_create_patches_sections(struct xsplice_elf *kelf,
 			funcs[index].old_size = result.size;
 			funcs[index].new_addr = 0;
 			funcs[index].new_size = sym->sym.st_size;
-			memset(funcs[index].undo, 0, sizeof funcs[index].undo);
+			memset(funcs[index].pad, 0, sizeof funcs[index].pad);
 
 			/*
 			 * Add a relocation that will populate