Fix random crash

2025-08-27 23:46:34 +00:00 · 2023-02-02 14:57:43 +08:00
parent 94b56e1b2f
commit 581506a1b5
4 changed files with 3 additions and 404 deletions
@@ -1,137 +0,0 @@
-/*
- * This file is part of LSPosed.
- *
- * LSPosed is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * LSPosed 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with LSPosed.  If not, see <https://www.gnu.org/licenses/>.
- *
- * Copyright (C) 2019 Swift Gan
- * Copyright (C) 2021 LSPosed Contributors
- */
-#ifndef SANDHOOK_ELF_UTIL_H
-#define SANDHOOK_ELF_UTIL_H
-
-#include <string_view>
-#include <unordered_map>
-#include <linux/elf.h>
-#include <sys/types.h>
-#include <link.h>
-#include <string>
-
-#define SHT_GNU_HASH 0x6ffffff6
-
-namespace SandHook {
-    class ElfImg {
-    public:
-
-        ElfImg(std::string_view elf);
-
-        constexpr ElfW(Addr) getSymbOffset(std::string_view name) const {
-            return getSymbOffset(name, GnuHash(name), ElfHash(name));
-        }
-
-        constexpr ElfW(Addr) getSymbAddress(std::string_view name) const {
-            ElfW(Addr) offset = getSymbOffset(name);
-            if (offset > 0 && base != nullptr) {
-                return static_cast<ElfW(Addr)>((uintptr_t) base + offset - bias);
-            } else {
-                return 0;
-            }
-        }
-
-        template<typename T>
-        requires(std::is_pointer_v<T>)
-        constexpr T getSymbAddress(std::string_view name) const {
-            return reinterpret_cast<T>(getSymbAddress(name));
-        }
-
-        bool isValid() const {
-            return base != nullptr;
-        }
-
-        const std::string name() const {
-            return elf;
-        }
-
-        ~ElfImg();
-
-    private:
-        ElfW(Addr) getSymbOffset(std::string_view name, uint32_t gnu_hash, uint32_t elf_hash) const;
-
-        ElfW(Addr) ElfLookup(std::string_view name, uint32_t hash) const;
-
-        ElfW(Addr) GnuLookup(std::string_view name, uint32_t hash) const;
-
-        ElfW(Addr) LinearLookup(std::string_view name) const;
-
-        constexpr static uint32_t ElfHash(std::string_view name);
-
-        constexpr static uint32_t GnuHash(std::string_view name);
-
-        bool findModuleBase();
-
-        std::string elf;
-        void *base = nullptr;
-        char *buffer = nullptr;
-        off_t size = 0;
-        off_t bias = -4396;
-        ElfW(Ehdr) *header = nullptr;
-        ElfW(Shdr) *section_header = nullptr;
-        ElfW(Shdr) *symtab = nullptr;
-        ElfW(Shdr) *strtab = nullptr;
-        ElfW(Shdr) *dynsym = nullptr;
-        ElfW(Sym) *symtab_start = nullptr;
-        ElfW(Sym) *dynsym_start = nullptr;
-        ElfW(Sym) *strtab_start = nullptr;
-        ElfW(Off) symtab_count = 0;
-        ElfW(Off) symstr_offset = 0;
-        ElfW(Off) symstr_offset_for_symtab = 0;
-        ElfW(Off) symtab_offset = 0;
-        ElfW(Off) dynsym_offset = 0;
-        ElfW(Off) symtab_size = 0;
-
-        uint32_t nbucket_{};
-        uint32_t *bucket_ = nullptr;
-        uint32_t *chain_ = nullptr;
-
-        uint32_t gnu_nbucket_{};
-        uint32_t gnu_symndx_{};
-        uint32_t gnu_bloom_size_;
-        uint32_t gnu_shift2_;
-        uintptr_t *gnu_bloom_filter_;
-        uint32_t *gnu_bucket_;
-        uint32_t *gnu_chain_;
-
-        mutable std::unordered_map<std::string_view, ElfW(Sym) *> symtabs_;
-    };
-
-    constexpr uint32_t ElfImg::ElfHash(std::string_view name) {
-        uint32_t h = 0, g;
-        for (unsigned char p: name) {
-            h = (h << 4) + p;
-            g = h & 0xf0000000;
-            h ^= g;
-            h ^= g >> 24;
-        }
-        return h;
-    }
-
-    constexpr uint32_t ElfImg::GnuHash(std::string_view name) {
-        uint32_t h = 5381;
-        for (unsigned char p: name) {
-            h += (h << 5) + p;
-        }
-        return h;
-    }
-}
-
-#endif //SANDHOOK_ELF_UTIL_H