improve: port ptracer to C

This commit ports the C++ to C99 from zygisk-ptracer code, allowing a ~3x size reduce in its binary.

loader/src/include/daemon.h

@@ -1,9 +1,12 @@
 #ifndef DAEMON_H
 #define DAEMON_H
+
 #ifdef __cplusplus
 extern "C" {
 #endif /* __cplusplus */
 
+#include <stdbool.h>
+
 #include <unistd.h>
 
 #ifdef __LP64__
@@ -51,9 +54,11 @@ enum mount_namespace_state {
   Module
 };
 
-void rezygiskd_init(const char *path);
+#define TMP_PATH "/data/adb/rezygisk"
 
-void rezygiskd_get_path(char *buf, size_t buf_size);
+static inline const char *rezygiskd_get_path() {
+  return TMP_PATH;
+}
 
 int rezygiskd_connect(uint8_t retry);
 

loader/src/include/native_bridge_callbacks.h

@@ -1,33 +0,0 @@
-#pragma once
-
-#include <android/api-level.h>
-#include <cstdint>
-
-template<unsigned>
-struct NativeBridgeCallbacks;
-
-template<>
-struct NativeBridgeCallbacks<__ANDROID_API_Q__> {
-    [[maybe_unused]] uint32_t version;
-    [[maybe_unused]] void *initialize;
-    [[maybe_unused]] void *loadLibrary;
-    [[maybe_unused]] void *getTrampoline;
-    [[maybe_unused]] void *isSupported;
-    [[maybe_unused]] void *getAppEnv;
-    [[maybe_unused]] void *isCompatibleWith;
-    [[maybe_unused]] void *getSignalHandler;
-    [[maybe_unused]] void *unloadLibrary;
-    [[maybe_unused]] void *getError;
-    [[maybe_unused]] void *isPathSupported;
-    [[maybe_unused]] void *initAnonymousNamespace;
-    [[maybe_unused]] void *createNamespace;
-    [[maybe_unused]] void *linkNamespaces;
-    [[maybe_unused]] void *loadLibraryExt;
-    [[maybe_unused]] void *getVendorNamespace;
-    [[maybe_unused]] void *getExportedNamespace;
-};
-
-template<>
-struct NativeBridgeCallbacks<__ANDROID_API_R__> : NativeBridgeCallbacks<__ANDROID_API_Q__> {
-    [[maybe_unused]] void *preZygoteFork;
-};