feat:增加自定义linker注入

module/src/main/cpp/mylinker/include/elf_reader.h

@@ -0,0 +1,38 @@
+#pragma once
+
+#include "common.h"
+
+class ElfReader {
+public:
+    ElfReader();
+    ~ElfReader();
+
+    bool Open(const char* path);
+    bool Read();
+    void Close();
+
+    const ElfW(Ehdr)* GetHeader() const { return &header_; }
+    const ElfW(Phdr)* GetProgramHeaders() const { return phdr_table_; }
+    size_t GetProgramHeaderCount() const { return phdr_num_; }
+
+    const char* GetPath() const { return path_.c_str(); }
+    int GetFd() const { return fd_; }
+    size_t GetFileSize() const { return file_size_; }
+    void* GetMappedAddr() const { return mapped_file_; }
+
+private:
+    bool ReadElfHeader();
+    bool ReadProgramHeaders();
+    bool VerifyElfHeader();
+
+    std::string path_;
+    int fd_;
+    size_t file_size_;
+    off64_t file_offset_;
+
+    void* mapped_file_; 
+
+    ElfW(Ehdr) header_;
+    ElfW(Phdr)* phdr_table_;
+    size_t phdr_num_;
+};