X-Git-Url: https://git.saurik.com/cycript.git/blobdiff_plain/b6961e537b5468dc0458808fdacba4a3291e1d48..9d13f949e19c9abd5500fe826f33cf03f0b7eb0b:/Trampoline.t.cpp?ds=sidebyside

diff --git a/Trampoline.t.cpp b/Trampoline.t.cpp
index 8689df3..a0f5aef 100644
--- a/Trampoline.t.cpp
+++ b/Trampoline.t.cpp
@@ -1,25 +1,100 @@
+/* Cycript - Optimizing JavaScript Compiler/Runtime
+ * Copyright (C) 2009-2010  Jay Freeman (saurik)
+*/
+
+/* GNU Lesser General Public License, Version 3 {{{ */
+/*
+ * Cycript is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU Lesser General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Cycript is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Cycript.  If not, see <http://www.gnu.org/licenses/>.
+**/
+/* }}} */
+
 #define _PTHREAD_ATTR_T
 #include <pthread_internals.h>
 
+#include "Standard.hpp"
 #include "Baton.hpp"
 
-void *Routine(void *);
+template <typename Type_>
+static _finline void dlset(Baton *baton, Type_ &function, const char *name, void *handle = RTLD_DEFAULT) {
+    function = reinterpret_cast<Type_>(baton->dlsym(handle, name));
+    if (function == NULL)
+        baton->dlerror();
+}
+
+#define Framework(framework) \
+    "/System/Library/Frameworks/" #framework ".framework/" #framework
+
+void *Routine(void *arg) {
+    Baton *baton(reinterpret_cast<Baton *>(arg));
+
+    void *(*dlopen)(const char *, int);
+    dlset(baton, dlopen, "dlopen");
+
+    if (baton->dlsym(RTLD_DEFAULT, "JSEvaluateScript") == NULL)
+        dlopen(Framework(JavaScriptCore), RTLD_GLOBAL | RTLD_LAZY);
+
+    void *(*objc_getClass)(const char *);
+    dlset(baton, objc_getClass, "objc_getClass");
+
+    if (objc_getClass("WebUndefined") == NULL)
+        dlopen(Framework(WebKit), RTLD_GLOBAL | RTLD_LAZY);
+
+    void *handle(dlopen(baton->library, RTLD_LAZY | RTLD_LOCAL));
+    if (handle == NULL) {
+        baton->dlerror();
+        return NULL;
+    }
+
+    void (*CYHandleServer)(pid_t);
+    dlset(baton, CYHandleServer, "CYHandleServer", handle);
+
+    CYHandleServer(baton->pid);
+
+    return NULL;
+}
+
+static void $bzero(void *data, size_t size) {
+    char *bytes(reinterpret_cast<char *>(data));
+    for (size_t i(0); i != size; ++i)
+        bytes[i] = 0;
+}
 
 extern "C" void Start(Baton *baton) {
     struct _pthread self;
-    baton->_pthread_set_self(&self);
+    $bzero(&self, sizeof(self));
+
+    // this code comes from _pthread_set_self
+    self.tsd[0] = &self;
+    baton->__pthread_set_self(&self);
+
+    int (*pthread_create)(pthread_t *, const pthread_attr_t *, void *(*)(void *), void *);
+    dlset(baton, pthread_create, "pthread_create");
 
     pthread_t thread;
-    baton->pthread_create(&thread, NULL, &Routine, baton);
+    pthread_create(&thread, NULL, &Routine, baton);
+
+    int (*pthread_join)(pthread_t, void **);
+    dlset(baton, pthread_join, "pthread_join");
 
     void *result;
-    baton->pthread_detach(thread);
+    pthread_join(thread, &result);
 
-    baton->thread_terminate(baton->mach_thread_self());
-}
+    mach_port_t (*mach_thread_self)();
+    dlset(baton, mach_thread_self, "mach_thread_self");
 
-void *Routine(void *arg) {
-    Baton *baton(reinterpret_cast<Baton *>(arg));
-    baton->dlopen(baton->library, RTLD_LAZY | RTLD_GLOBAL);
-    return arg;
+    kern_return_t (*thread_terminate)(thread_act_t);
+    dlset(baton, thread_terminate, "thread_terminate");
+
+    thread_terminate(mach_thread_self());
 }