From f1e005d63bfb0245969bad46ff13523ec00dd1c6 Mon Sep 17 00:00:00 2001
From: Yifan Lu
Date: Wed, 5 Oct 2016 23:08:44 -0700
Subject: Changed malloc in substitute_hook_functions to alloca

---
 lib/hook-functions.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/hook-functions.c b/lib/hook-functions.c
index a39cbb0..d7b925f 100644
--- a/lib/hook-functions.c
+++ b/lib/hook-functions.c
@@ -5,6 +5,7 @@
 #include "transform-dis.h"
 #include "execmem.h"
 #include stringify(TARGET_DIR/jump-patch.h)
+#include <alloca.h>
 #ifndef NO_PTHREADS
 #include <pthread.h>
 #endif
@@ -149,7 +150,7 @@ int substitute_hook_functions(const struct substitute_function_hook *hooks,
         *recordp = NULL;
 
     struct execmem_foreign_write *fws;
-    struct hook_internal *his = malloc(nhooks * sizeof(*his) +
+    struct hook_internal *his = alloca(nhooks * sizeof(*his) +
                                        nhooks * sizeof(*fws));
     if (!his)
         return SUBSTITUTE_ERR_OOM;
@@ -297,7 +298,6 @@ end:
             execmem_free(page);
     }
 end_dont_free:
-    free(his);
     return ret;
 }
 
-- 
cgit v1.2.3