From 60aee49bc717e68b79e3102497cbb9435623fc7a Mon Sep 17 00:00:00 2001
From: Yifan Lu
Date: Wed, 5 Oct 2016 23:09:11 -0700
Subject: Support using a different VMA for the hook dest

---
 lib/hook-functions.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'lib/hook-functions.c')

diff --git a/lib/hook-functions.c b/lib/hook-functions.c
index d7b925f..4fc61e0 100644
--- a/lib/hook-functions.c
+++ b/lib/hook-functions.c
@@ -182,7 +182,8 @@ int substitute_hook_functions(const struct substitute_function_hook *hooks,
 #endif
         hi->code = code;
         hi->arch_dis_ctx = arch;
-        uintptr_t pc_patch_start = (uintptr_t) code;
+        uintptr_t pc_patch_start = hook->func_addr ? 
+                                            hook->func_addr : (uintptr_t) code;
         int patch_size;
         bool need_intro_trampoline;
         if ((ret = check_intro_trampoline(&trampoline_ptr, &trampoline_addr, 
-- 
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