feat(jni_trace): reimplement jni_trace using CRTP to improve performance

Author: sanfengAndroid

library/src/main/cpp/CMakeLists.txt

@@ -76,9 +76,9 @@ set(FAKE_LINKER_SRC
 
   # JNI Hook
   linker/art/art_symbol.cpp
-  linker/art/default_trace_jni.cpp
   linker/art/hook_jni_native_interface_impl.cpp
   linker/art/jni_helper.cpp
+  linker/art/symbol_resolver.cpp
   linker/art/trace_jni.cpp
 
   # JNI Common

library/src/main/cpp/include/fakelinker/default_trace_jni.h

@@ -0,0 +1,80 @@
+#pragma once
+
+#include <cstdint>
+#include <map>
+#include <string>
+
+namespace fakelinker {
+class SymbolResolver {
+public:
+  struct SymbolResult {
+    // 解析的库/地方范围的起始地址
+    uintptr_t start;
+    // 解析的库/地方范围的结束地址
+    uintptr_t end;
+    // 当前地址相对于 start 的偏移
+    uintptr_t offset = UINTPTR_MAX;
+    // 库名称
+    const char *name;
+  };
+
+  bool AddLibrary(const std::string &name);
+
+  bool AddAddressRange(const std::string &name, uintptr_t start, uintptr_t end);
+
+  /**
+   * @brief 格式化地址如下:
+   *         head 地址 [库名!偏移]
+   *
+   * @param  address        待格式化地址
+   * @param  default_format 如果不再监控范围内是否格式化为 head 地址
+   * @param  head           添加指定头
+   * @return std::string
+   */
+  std::string FormatAddress(uintptr_t address, bool default_format, const std::string &head = "");
+
+  /**
+   * @brief 指定buffer处格式化地址,避免内存拷贝
+   *
+   * @param  buffer         指定缓冲区
+   * @param  max_length     最大缓冲区大小
+   * @param  address        待格式化的地址
+   * @param  default_format 如果不再监控范围内是否格式化为 head 地址
+   * @param  head           添加指定头
+   * @return true           在地址范围内
+   * @return false          不在地址范围内
+   */
+  bool FormatAddressFromBuffer(char *&buffer, size_t max_length, uintptr_t address, bool default_format,
+                               const std::string &head = "");
+
+  bool AddAddressRange(const std::string &name, const void *start, const void *end) {
+    return AddAddressRange(name, reinterpret_cast<uintptr_t>(start), reinterpret_cast<uintptr_t>(end));
+  }
+
+  std::string FormatAddress(const void *address, bool default_format, const std::string &head = "") {
+    return FormatAddress(reinterpret_cast<uintptr_t>(address), default_format, head);
+  }
+
+  bool FormatAddressFromBuffer(char *&buffer, size_t max_length, const void *address, bool default_format,
+                               const std::string &head = "") {
+    return FormatAddressFromBuffer(buffer, max_length, reinterpret_cast<uintptr_t>(address), default_format, head);
+  }
+
+  bool ResolveSymbol(uintptr_t address, SymbolResult &result);
+  bool ResolveSymbol(const void *address, SymbolResult &result) {
+    return ResolveSymbol(reinterpret_cast<uintptr_t>(address), result);
+  }
+
+private:
+  struct LibraryItem {
+    uintptr_t start;
+    uintptr_t end;
+    std::string name;
+  };
+
+  LibraryItem *FindLibrary(uintptr_t address);
+
+
+  std::map<uintptr_t, LibraryItem> libraries_;
+};
+} // namespace fakelinker