Add extra argument to substitute_hook_functions and interpose_imports for use with unhooking.

I think we'll need to explicitly record trampoline locations to avoid
the possibility of stomping on someone else's stuff if the function was
re-patched...

Also, document substitute_hook_functions.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/darwin/substrate-compat.c b/lib/darwin/substrate-compat.c
index 3515e44..bb68366 100644
--- a/lib/darwin/substrate-compat.c
+++ b/lib/darwin/substrate-compat.c
@@ -43,7 +43,7 @@ EXPORT
 void SubHookFunction(void *symbol, void *replace, void **result) __asm__("SubHookFunction");
 void SubHookFunction(void *symbol, void *replace, void **result) {
     struct substitute_function_hook hook = {symbol, replace, result};
-    int ret = substitute_hook_functions(&hook, 1, SUBSTITUTE_NO_THREAD_SAFETY);
+    int ret = substitute_hook_functions(&hook, 1, NULL, SUBSTITUTE_NO_THREAD_SAFETY);
     if (ret) {
         substitute_panic("SubHookFunction: substitute_hook_functions returned %s\n",
                          substitute_strerror(ret));