Method getExtSymGotRelVirtAddr

app/src/main/cpp/utils/elfsym/ElfView.cpp:243–358

}

std::vector<uint64_t> ElfView::getExtSymGotRelVirtAddr(const char *symbol) const {
    if (symbol == nullptr) {
        return {};
    }
    if (mPointerSize == 4) {
        // ELF32
        std::vector<uint64_t> result;
        ElfInfo info = {};
        if (getElfInfo(info) != mPointerSize) {
            return result;
        }
        // find symbol
        const Elf32_Sym *sym = nullptr;
        uint32_t symidx = 0;
        if (findSymByName32(info, symbol, &sym, &symidx)) {
            if (info.use_rela) {
                for (int i = 0; i < info.relplt_size; i++) {
                    const Elf32_Rela &rel = ((const Elf32_Rela *) info.relplt)[i];
                    if (ELF32_R_SYM(rel.r_info) == symidx
                        && (ELF32_R_TYPE(rel.r_info) == R_ARM_JUMP_SLOT
                            || ELF32_R_TYPE(rel.r_info) == R_386_JMP_SLOT)) {
                        result.emplace_back(uint64_t(rel.r_offset));
                        break;
                    }
                }
                for (int i = 0; i < info.reldyn_size; i++) {
                    const Elf32_Rela &rel = ((const Elf32_Rela *) info.reldyn)[i];
                    if (ELF32_R_SYM(rel.r_info) == symidx &&
                        (ELF32_R_TYPE(rel.r_info) == R_ARM_ABS32
                         || ELF32_R_TYPE(rel.r_info) == R_ARM_GLOB_DAT
                         || ELF32_R_TYPE(rel.r_info) == R_386_32
                         || ELF32_R_TYPE(rel.r_info) == R_386_GLOB_DAT)) {
                        result.emplace_back(uint64_t(rel.r_offset));
                    }
                }
            } else {
                for (int i = 0; i < info.relplt_size; i++) {
                    const Elf32_Rela &rel = ((const Elf32_Rela *) info.relplt)[i];
                    if (ELF32_R_SYM(rel.r_info) == symidx
                        && (ELF32_R_TYPE(rel.r_info) == R_ARM_JUMP_SLOT
                            || ELF32_R_TYPE(rel.r_info) == R_386_JMP_SLOT)) {
                        result.emplace_back(uint64_t(rel.r_offset));
                        break;
                    }
                }
                for (int i = 0; i < info.reldyn_size; i++) {
                    const Elf32_Rela &rel = ((const Elf32_Rela *) info.reldyn)[i];
                    if (ELF32_R_SYM(rel.r_info) == symidx &&
                        (ELF32_R_TYPE(rel.r_info) == R_ARM_ABS32
                         || ELF32_R_TYPE(rel.r_info) == R_ARM_GLOB_DAT
                         || ELF32_R_TYPE(rel.r_info) == R_386_32
                         || ELF32_R_TYPE(rel.r_info) == R_386_GLOB_DAT)) {
                        result.emplace_back(uint64_t(rel.r_offset));
                    }
                }
            }
        }
        return result;