Nanxin Chen

68 papers A* 1A 15B 1C 4Misc 9Journal 33Unranked 5
YearRankTypeTitle / Venue / Authors
2024 J jnl
CoRR
Xuan Kan, Yonghui Xiao, Tien-Ju Yang, Nanxin Chen, Rajiv Mathews
2024 A conf
INTERSPEECH
Zhong Meng, Zelin Wu, Rohit Prabhavalkar, Cal Peyser, Weiran Wang, Nanxin Chen, Tara N. Sainath, Bhuvana Ramabhadran
2024 J jnl
CoRR
Zhong Meng, Zelin Wu, Rohit Prabhavalkar, Cal Peyser, Weiran Wang, Nanxin Chen, Tara N. Sainath, Bhuvana Ramabhadran
2023 Misc conf
ICASSP
Chao-Han Huck Yang, Bo Li, Yu Zhang, Nanxin Chen, Tara N. Sainath, Sabato Marco Siniscalchi, Chin-Hui Lee
2023 C conf
ASRU
Yuan Gao, Nobuyuki Morioka, Yu Zhang, Nanxin Chen
2023 J jnl
CoRR
Yuan Gao, Nobuyuki Morioka, Yu Zhang, Nanxin Chen
2023 J jnl
CoRR
Nanxin Chen, Izhak Shafran, Yu Zhang, Chung-Cheng Chiu, Hagen Soltau, James Qin, Yonghui Wu
2023 Misc conf
ICASSP
Chao-Han Huck Yang, Bo Li, Yu Zhang, Nanxin Chen, Rohit Prabhavalkar, Tara N. Sainath, Trevor Strohman
2023 J jnl
CoRR
Chao-Han Huck Yang, Bo Li, Yu Zhang, Nanxin Chen, Rohit Prabhavalkar, Tara N. Sainath, Trevor Strohman
2023 J jnl
CoRR
Yu Zhang, Wei Han, James Qin, Yongqiang Wang, Ankur Bapna, Zhehuai Chen, Nanxin Chen, Bo Li, Vera Axelrod, Gary Wang, Zhong Meng, Ke Hu, Andrew Rosenberg, Rohit Prabhavalkar, Daniel S. Park, Parisa Haghani, Jason Riesa, Ginger Perng, Hagen Soltau, Trevor Strohman, Bhuvana Ramabhadran, Tara N. Sainath, Pedro J. Moreno, Chung-Cheng Chiu, Johan Schalkwyk, Françoise Beaufays, Yonghui Wu
2023 A conf
INTERSPEECH
Zih-Ching Chen, Chao-Han Huck Yang, Bo Li, Yu Zhang, Nanxin Chen, Shuo-Yiin Chang, Rohit Prabhavalkar, Hung-yi Lee, Tara N. Sainath
2023 J jnl
CoRR
Zih-Ching Chen, Chao-Han Huck Yang, Bo Li, Yu Zhang, Nanxin Chen, Shuo-Yiin Chang, Rohit Prabhavalkar, Hung-yi Lee, Tara N. Sainath
2023 J jnl
CoRR
Qingqing Huang, Daniel S. Park, Tao Wang, Timo I. Denk, Andy Ly, Nanxin Chen, Zhengdong Zhang, Zhishuai Zhang, Jiahui Yu, Christian Havnø Frank, Jesse H. Engel, Quoc V. Le, William Chan, Wei Han
2023 C conf
ASRU
Mingqiu Wang, Wei Han, Izhak Shafran, Zelin Wu, Chung-Cheng Chiu, Yuan Cao, Nanxin Chen, Yu Zhang, Hagen Soltau, Paul K. Rubenstein, Lukas Zilka, Dian Yu, Golan Pundak, Nikhil Siddhartha, Johan Schalkwyk, Yonghui Wu
2023 J jnl
CoRR
Mingqiu Wang, Wei Han, Izhak Shafran, Zelin Wu, Chung-Cheng Chiu, Yuan Cao, Yongqiang Wang, Nanxin Chen, Yu Zhang, Hagen Soltau, Paul K. Rubenstein, Lukas Zilka, Dian Yu, Zhong Meng, Golan Pundak, Nikhil Siddhartha, Johan Schalkwyk, Yonghui Wu
2022 J jnl
CoRR
Chao-Han Huck Yang, Bo Li, Yu Zhang, Nanxin Chen, Tara N. Sainath, Sabato Marco Siniscalchi, Chin-Hui Lee
2022 conf
SLT
Zhehuai Chen, Ankur Bapna, Andrew Rosenberg, Yu Zhang, Bhuvana Ramabhadran, Pedro J. Moreno, Nanxin Chen
2022 J jnl
CoRR
Zhehuai Chen, Ankur Bapna, Andrew Rosenberg, Yu Zhang, Bhuvana Ramabhadran, Pedro J. Moreno, Nanxin Chen
2022 J jnl
CoRR
Nobuyuki Morioka, Heiga Zen, Nanxin Chen, Yu Zhang, Yifan Ding
2022 A conf
INTERSPEECH
Yuma Koizumi, Heiga Zen, Kohei Yatabe, Nanxin Chen, Michiel Bacchiani
2022 J jnl
CoRR
Yuma Koizumi, Heiga Zen, Kohei Yatabe, Nanxin Chen, Michiel Bacchiani
2021 C conf
ASRU
Yosuke Higuchi, Nanxin Chen, Yuya Fujita, Hirofumi Inaguma, Tatsuya Komatsu, Jaesong Lee, Jumon Nozaki, Tianzi Wang, Shinji Watanabe
2021 J jnl
CoRR
Yosuke Higuchi, Nanxin Chen, Yuya Fujita, Hirofumi Inaguma, Tatsuya Komatsu, Jaesong Lee, Jumon Nozaki, Tianzi Wang, Shinji Watanabe
2021 A conf
Interspeech
Nanxin Chen, Piotr Zelasko, Laureano Moro-Velázquez, Jesús Villalba, Najim Dehak
2021 Misc conf
ICASSP
Nanxin Chen, Piotr Zelasko, Jesús Villalba, Najim Dehak
2021 J jnl
IEEE Signal Process. Lett.
Nanxin Chen, Shinji Watanabe, Jesús Villalba, Piotr Zelasko, Najim Dehak
2021 A conf
Interspeech
Nanxin Chen, Yu Zhang, Heiga Zen, Ron J. Weiss, Mohammad Norouzi, Najim Dehak, William Chan
2021 J jnl
CoRR
Nanxin Chen, Yu Zhang, Heiga Zen, Ron J. Weiss, Mohammad Norouzi, Najim Dehak, William Chan
2021 A* conf
ICLR
Nanxin Chen, Yu Zhang, Heiga Zen, Ron J. Weiss, Mohammad Norouzi, William Chan
2020 conf
Odyssey
Jesús Antonio Villalba López, Daniel Garcia-Romero, Nanxin Chen, Gregory Sell, Jonas Borgstrom, Alan McCree, Leibny Paola García-Perera, Saurabh Kataria, Phani Sankar Nidadavolu, Pedro Torres-Carrasquiilo, Najim Dehak
2020 J jnl
CoRR
Heinrich Dinkel, Nanxin Chen, Yanmin Qian, Kai Yu
2020 Misc conf
ICASSP
Saurabh Kataria, Phani Sankar Nidadavolu, Jesús Villalba, Nanxin Chen, L. Paola García-Perera, Najim Dehak
2020 J jnl
CoRR
Nanxin Chen, Piotr Zelasko, Jesús Villalba, Najim Dehak
2020 Misc conf
ICASSP
Andrew Titus, Jan Silovský, Nanxin Chen, Roger Hsiao, Mary Young, Arnab Ghoshal
2020 J jnl
CoRR
Andrew Titus, Jan Silovský, Nanxin Chen, Roger Hsiao, Mary Young, Arnab Ghoshal
2020 A conf
INTERSPEECH
Yosuke Higuchi, Shinji Watanabe, Nanxin Chen, Tetsuji Ogawa, Tetsunori Kobayashi
2020 J jnl
CoRR
Yosuke Higuchi, Shinji Watanabe, Nanxin Chen, Tetsuji Ogawa, Tetsunori Kobayashi
2020 B conf
IJCNN
Adrian Lancucki, Jan Chorowski, Guillaume Sanchez, Ricard Marxer, Nanxin Chen, Hans J. G. A. Dolfing, Sameer Khurana, Tanel Alumäe, Antoine Laurent
2020 J jnl
CoRR
Adrian Lancucki, Jan Chorowski, Guillaume Sanchez, Ricard Marxer, Nanxin Chen, Hans J. G. A. Dolfing, Sameer Khurana, Tanel Alumäe, Antoine Laurent
2020 J jnl
Comput. Speech Lang.
Jesús Villalba, Nanxin Chen, David Snyder, Daniel Garcia-Romero, Alan McCree, Gregory Sell, Jonas Borgstrom, Leibny Paola García-Perera, Fred Richardson, Réda Dehak, Pedro A. Torres-Carrasquillo, Najim Dehak
2020 J jnl
CoRR
Nanxin Chen, Yu Zhang, Heiga Zen, Ron J. Weiss, Mohammad Norouzi, William Chan
2020 Misc conf
ICASSP
Raghavendra Pappagari, Tianzi Wang, Jesús Villalba, Nanxin Chen, Najim Dehak
2020 Misc conf
ICASSP
Erica Cooper, Cheng-I Lai, Yusuke Yasuda, Fuming Fang, Xin Wang, Nanxin Chen, Junichi Yamagishi
2020 J jnl
CoRR
Raghavendra Pappagari, Tianzi Wang, Jesús Villalba, Nanxin Chen, Najim Dehak
2019 C conf
ASRU
Shigeki Karita, Xiaofei Wang, Shinji Watanabe, Takenori Yoshimura, Wangyou Zhang, Nanxin Chen, Tomoki Hayashi, Takaaki Hori, Hirofumi Inaguma, Ziyan Jiang, Masao Someki, Nelson Enrique Yalta Soplin, Ryuichi Yamamoto
2019 J jnl
CoRR
Shigeki Karita, Nanxin Chen, Tomoki Hayashi, Takaaki Hori, Hirofumi Inaguma, Ziyan Jiang, Masao Someki, Nelson Enrique Yalta Soplin, Ryuichi Yamamoto, Xiaofei Wang, Shinji Watanabe, Takenori Yoshimura, Wangyou Zhang
2019 A conf
INTERSPEECH
Cheng-I Lai, Nanxin Chen, Jesús Villalba, Najim Dehak
2019 J jnl
CoRR
Cheng-I Lai, Nanxin Chen, Jesús Villalba, Najim Dehak
2019 J jnl
CoRR
Saurabh Kataria, Phani Sankar Nidadavolu, Jesús Villalba, Nanxin Chen, Paola García, Najim Dehak
2019 J jnl
CoRR
Nanxin Chen, Shinji Watanabe, Jesús Villalba, Najim Dehak
2019 A conf
INTERSPEECH
Jesús Villalba, Nanxin Chen, David Snyder, Daniel Garcia-Romero, Alan McCree, Gregory Sell, Jonas Borgstrom, Fred Richardson, Suwon Shon, François Grondin, Réda Dehak, Leibny Paola García-Perera, Daniel Povey, Pedro A. Torres-Carrasquillo, Sanjeev Khudanpur, Najim Dehak
2019 A conf
INTERSPEECH
David Snyder, Jesús Villalba, Nanxin Chen, Daniel Povey, Gregory Sell, Najim Dehak, Sanjeev Khudanpur
2019 A conf
INTERSPEECH
Nanxin Chen, Jesús Villalba, Najim Dehak
2018 J jnl
IEEE Access
Rubén Zazo-Candil, Phani Sankar Nidadavolu, Nanxin Chen, Joaquin Gonzalez-Rodriguez, Najim Dehak
2018 A conf
INTERSPEECH
Nanxin Chen, Jesús Villalba, Najim Dehak
2018 A conf
INTERSPEECH
Shinji Watanabe, Takaaki Hori, Shigeki Karita, Tomoki Hayashi, Jiro Nishitoba, Yuya Unno, Nelson Enrique Yalta Soplin, Jahn Heymann, Matthew Wiesner, Nanxin Chen, Adithya Renduchintala, Tsubasa Ochiai
2018 J jnl
CoRR
Shinji Watanabe, Takaaki Hori, Shigeki Karita, Tomoki Hayashi, Jiro Nishitoba, Yuya Unno, Nelson Enrique Yalta Soplin, Jahn Heymann, Matthew Wiesner, Nanxin Chen, Adithya Renduchintala, Tsubasa Ochiai
2018 A conf
INTERSPEECH
Pegah Ghahremani, Phani Sankar Nidadavolu, Nanxin Chen, Jesús Villalba, Daniel Povey, Sanjeev Khudanpur, Najim Dehak
2018 Misc conf
ICASSP
Nanxin Chen, Jesús Villalba, Yishay Carmiel, Najim Dehak
2018 conf
Odyssey
Fred Richardson, Pedro A. Torres-Carrasquillo, Jonas Borgstrom, Douglas E. Sturim, Youngjune Gwon, Jesús Villalba, Jan Trmal, Nanxin Chen, Réda Dehak, Najim Dehak
2017 J jnl
IEEE ACM Trans. Audio Speech Lang. Process.
Yanmin Qian, Nanxin Chen, Heinrich Dinkel, Zhizheng Wu
2017 Misc conf
ICASSP
Heinrich Dinkel, Nanxin Chen, Yanmin Qian, Kai Yu
2016 J jnl
Speech Commun.
Yanmin Qian, Nanxin Chen, Kai Yu
2016 conf
BTAS
Pavel Korshunov, Sébastien Marcel, Hannah Muckenhirn, André R. Gonçalves, A. G. Souza Mello, Ricardo Paranhos Velloso Violato, Flávio Olmos Simões, Mário Uliani Neto, Marcus de Assis Angeloni, José Augusto Stuchi, Heinrich Dinkel, Nanxin Chen, Yanmin Qian, Dipjyoti Paul, Goutam Saha, Md. Sahidullah
2015 J jnl
Speech Commun.
Yuan Liu, Yanmin Qian, Nanxin Chen, Tianfan Fu, Ya Zhang, Kai Yu
2015 A conf
INTERSPEECH
Nanxin Chen, Yanmin Qian, Kai Yu
2015 A conf
INTERSPEECH
Nanxin Chen, Yanmin Qian, Heinrich Dinkel, Bo Chen, Kai Yu
2014 conf
CCTA
Nanxin Chen, Qingling Duan, JianQin Wang, Ruizhi Sun
redb/extractors/decompiler/DecompileBinja.py
← Index redb/extractors/decompiler/DecompileBinja.py python
import hashlib
import inspect
import json
import logging
import os
import signal
import time
from datetime import datetime, timezone
from typing import Dict, Any, Optional
from pathlib import Path
import subprocess
import sys

from redb.extractors.enum import Tag
from redb.extractors.extractor import Extractor
import magic
import pefile
from elftools.elf.elffile import ELFFile

# Import our BinjaDecompiler (conditional)
from redb.extractors.decompiler.bninja.decompiler import BinaryNinjaDecompiler

class DecompileBinja(Extractor):
    def __init__(
        self,
        filepath,
        log,
        exporters=None,
        index_prefix=None,
        elastic_index=None,
        known_benign=False,
        known_malicious=False,
        filetype=None,
        decompile_modules=None,
    ):
        super().__init__(
            filepath,
            log,
            exporters,
            index_prefix,
            elastic_index,
            known_benign,
            known_malicious,
        )
        self.log.debug(inspect.currentframe().f_code.co_name)

        # Check if Binary Ninja is available
       # if not BINARYNINJA_AVAILABLE:
        #     self.log.error("Binary Ninja is not available in this container")
        #    raise ImportError(
        #        "Binary Ninja module not found - not available in feature extraction container"
        #    )
        self.analysis_results = None
        self.binja_decompiler = None
        self.filetype = filetype
        self.decompile_modules = decompile_modules or {"all"}
        self.goresym_data = None
        self.goresym_output_path = None

        # Convert TIMEOUT to integer with a default of 1200 seconds (20 minutes)
        try:
            self.BINJA_TIMEOUT = int(os.getenv("BINJA_TIMEOUT", "1200"))
        except ValueError:
            self.log.warning(
                "Invalid BINJA_TIMEOUT value, using default of 1200 seconds"
            )
            self.BINJA_TIMEOUT = 1200

        # Convert TIMEOUT to integer with a default of 1200 seconds (20 minutes)
        try:
            self.DECOMPILE_EXTRACTOR_TIMEOUT = int(
                os.getenv("DECOMPILE_EXTRACTOR_TIMEOUT", "2580")
            )
        except ValueError:
            self.log.warning(
                "Invalid DECOMPILE_EXTRACTOR_TIMEOUT value, using default of 2580 seconds"
            )
            self.DECOMPILE_EXTRACTOR_TIMEOUT = 2580

    def __enter__(self):
        return self

    def __exit__(self, exc_type, exc_val, exc_tb):
        self.cleanup_run()

    def calculate_md5(self, input_str):
        """Calculate MD5 hash of a string."""
        return hashlib.md5(input_str.encode("utf-8")).hexdigest()

    def is_dotnet(self):
        """Check if the binary is a .NET assembly.

        Returns:
            bool: True if the file is a .NET assembly, False otherwise
        """
        try:
            if self.filetype == "pebin":
                file_type = magic.from_buffer(self.binary)
                if ".Net" in file_type:
                    return True
                pe = pefile.PE(self.filepath)
                for entry in pe.OPTIONAL_HEADER.DATA_DIRECTORY:
                    # IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR is typically 14
                    if (
                        entry.name == "IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR"
                        and entry.Size > 0
                    ):
                        return True
                return False
            return False
        except AttributeError as e:
            self.log.error(
                f"AttributeError error dotnet file {self.hash.sha256} Full error : {e}"
            )
            return False

    def is_golang(self):
        """Check if the binary is a Go-compiled binary (heuristic).

        Supports PE and ELF binaries.
        """
        try:
            if self.filetype == "pebin":
                pe = pefile.PE(self.filepath)
                signatures = [b"Go build ID:", b"runtime.main", b"main.main"]

                for section in pe.sections:
                    data = section.get_data()
                    if any(sig in data for sig in signatures):
                        return True

                return False

            elif self.filetype == "elf":
                with open(self.filepath, "rb") as f:
                    elf = ELFFile(f)

                    # 1. Section-based checks
                    section_names = [sec.name for sec in elf.iter_sections()]
                    if any(
                        s in section_names
                        for s in (".note.go.buildid", ".gopclntab")
                    ):
                        return True

                    # 2. String scan in loadable sections
                    signatures = [
                        b"Go build ID:",
                        b"runtime.main",
                        b"runtime.goexit",
                        b"runtime.morestack",
                        b"main.main",
                    ]

                    for sec in elf.iter_sections():
                        if sec["sh_flags"] & 0x2:  # SHF_ALLOC
                            data = sec.data()
                            if any(sig in data for sig in signatures):
                                return True

                return False

            return False

        except Exception as e:
            self.log.error(
                f"Golang detection error {self.hash.sha256}: {e}"
            )
            return False

    def cleanup_run(self):
        """Clean up after analysis."""
        try:
            # BinaryNinjaDecompiler uses context manager pattern (__enter__/__exit__)
            # Cleanup happens automatically when exiting the 'with' block
            self.binja_decompiler = None

            # Clean up goresym temp file if it exists (keep in debug mode)
            if self.goresym_output_path and os.path.exists(self.goresym_output_path):
                if self.log.isEnabledFor(logging.DEBUG):
                    self.log.debug(f"Debug mode: keeping goresym output at {self.goresym_output_path}")
                else:
                    os.remove(self.goresym_output_path)
                    self.goresym_output_path = None

            # Force garbage collection
            import gc

            gc.collect()

        except Exception as e:
            self.log.error(f"Error in cleanup: {e}")

    def run_goresym(self, binary_path, output_json_path):
        """
            Run goresym on a Go binary and export its JSON output to a file.
            binary_path: path to the Go binary to analyze
            output_json_path: path where the JSON output will be saved
            """
        binary_path = str(Path(binary_path).resolve())
        output_json_path = str(Path(output_json_path).resolve())
        goresym_path = os.getenv("GORESYM_PATH", "GoReSym")

        try:
            # Example: goresym -t json /path/to/binary
            self.log.info("DEBUG: starting GoReSym")
            result = subprocess.run(
                [goresym_path, binary_path],
                stdout=subprocess.PIPE,
                stderr=subprocess.PIPE,
                text=True,
            )
        except FileNotFoundError:
            self.log.error("Error: 'goresym' not found in PATH. Make sure it is installed.")
            raise
        except subprocess.CalledProcessError as e:
            self.log.error("Error during goresym execution:")
            self.log.error(e.stderr)


        # Assuming goresym emits valid JSON to stdout.
        try:
            parsed = json.loads(result.stdout)
            # Store parsed JSON for later export to ClickHouse
            self.goresym_data = parsed
        except json.JSONDecodeError:
            # If it's not valid JSON, save the raw output instead.
            self.log.error("Warning: goresym output is not valid JSON; saving raw.")
            with open(output_json_path, "w", encoding="utf-8") as f:
                f.write(result.stdout)
            return

        # Save pretty-printed JSON for readability and debugging (used by BinaryNinja)
        with open(output_json_path, "w", encoding="utf-8") as f:
            json.dump(parsed, f, ensure_ascii=False, indent=2)
        self.goresym_output_path = output_json_path

        self.log.debug(f"goresym output saved to: {output_json_path}")

    def analyze_binary(self) -> Optional[Dict[str, Any]]:
        """Run Binary Ninja analysis and return results."""
        self.log.debug("Starting binary analysis")
        # if the binary is dotnet (only PE)
        if self.is_dotnet():
            self.log.debug("Skipping .NET binary - decompilation not supported")
            return None

        output_json_path = None
        ## if golang: run goresym
        try:
            if self.is_golang():
                output_json_path = "./goResym.json"
                self.run_goresym(self.filepath, output_json_path)
        except Exception as e:
            self.log.error(f"Error on GoReSym extraction: {e}")

        try:
            # Use BinaryNinjaDecompiler as a context manager to ensure proper setup/cleanup
            with BinaryNinjaDecompiler(
                filepath=self.filepath,
                timeout=self.BINJA_TIMEOUT,
                log=self.log,
                exporters=self.exporters,
                index_prefix=self.index_prefix,
                filetype=self.filetype,
                goresym=output_json_path,
                decompile_modules=self.decompile_modules,
            ) as decompiler:
                self.binja_decompiler = decompiler

                if decompiler.extract():
                    # Store results before context manager exits
                    results = decompiler.analysis_results
                    return results
                else:
                    self.log.error("BinaryNinjaDecompiler extraction failed")
                    return None

        except Exception as e:
            self.log.error(f"Error in Binary Ninja analysis: {e}")
            import traceback
            self.log.error(f"Traceback: {traceback.format_exc()}")
            return None

        finally:
            self.cleanup_run()

    def extract(self):
        """Extract and process all analysis results."""
        self.log.debug(inspect.currentframe().f_code.co_name)

        # Create a flag to track if extraction completed
        extraction_completed = False
        extraction_result = False
        extraction_error = None

        # Define the extraction process as a separate function
        def do_extraction():
            nonlocal extraction_completed, extraction_result, extraction_error
            try:
                results = self.analyze_binary()
                if not results:
                    extraction_result = False
                else:
                    self.analysis_results = results
                    # Add file hashes from parent Extractor class to analysis results
                    self.analysis_results["sha256"] = self.sha256
                    self.analysis_results["sha1"] = self.sha1
                    self.analysis_results["md5"] = self.md5
                    extraction_result = True
            except Exception as e:
                extraction_error = e
                extraction_result = False
            finally:
                extraction_completed = True

        # Run extraction directly with signal-based timeout (no thread overhead).
        # SIGALRM is delivered by the OS, so there's no GIL contention or polling.
        old_handler = signal.getsignal(signal.SIGALRM)
        def _timeout_handler(signum, frame):
            raise TimeoutError("Extraction timed out")

        signal.signal(signal.SIGALRM, _timeout_handler)
        signal.alarm(self.DECOMPILE_EXTRACTOR_TIMEOUT)
        try:
            do_extraction()
        except TimeoutError:
            self.log.error(
                f"Extraction timed out after {self.DECOMPILE_EXTRACTOR_TIMEOUT} seconds"
            )
            self.cleanup_run()
            return None
        finally:
            signal.alarm(0)
            signal.signal(signal.SIGALRM, old_handler)

        if extraction_error:
            self.log.error(f"Error in extraction: {extraction_error}")
            return None

        # Return the actual analysis results, not just a boolean
        return self.analysis_results if extraction_result else None

    def prepare_export_data(self, exporter_type: str) -> Any:
        """Prepare data for database export."""
        self.log.debug(inspect.currentframe().f_code.co_name)
        if not self.analysis_results:
            return None

        # # Delegate to the BinjaDecompiler for consistent export formatting
        # if self.binja_decompiler:
        #     return self.binja_decompiler.prepare_export_data(exporter_type)
        # else:
        #     self.log.error("BinjaDecompiler not available for export preparation")
        #     return None

        if exporter_type == "ClickHouseExporter":
            now = datetime.now(timezone.utc)

            def prepare_array_field(value, array_type):
                """Helper to prepare array fields with proper null handling"""
                if value is None:
                    return []
                return value

            # Add a helper function to handle empty strings
            def ensure_not_empty(value, default="UNKNOWN"):
                """Ensure a string value is not empty"""
                if value is None or value == "":
                    return default
                return value

            def prepare_register_usage_map(register_dict):
                """Convert register usage dict to Map format with tuples
                Input: {"rbx": {"reads": 3, "writes": 1}, ...}
                Output: {"rbx": (3, 1), ...}
                """
                if not register_dict:
                    return {}
                return {
                    reg: (info.get("reads", 0), info.get("writes", 0))
                    for reg, info in register_dict.items()
                }


            decompile_modules = getattr(self, "decompile_modules", {"all"})
            run_all = "all" in decompile_modules
            run_decompilation = run_all or "decompilation" in decompile_modules
            run_disassembly = run_all or "disassembly" in decompile_modules
            run_llil = run_all or "llil" in decompile_modules
            run_cfg = run_all or "cfg" in decompile_modules
            run_strings = run_all or "strings" in decompile_modules

            export = {"multi_table": True}

            # Decompilation tables
            if run_decompilation:
                export["decompiled_content"] = {
                    "table": "code_binja_decompiled_functions_content",
                    "data": [
                        [
                            f["decompiled_function_hash"],
                            f["decompiled_function"],
                            f["function_type"],
                            f.get("flattened_score"),
                            f.get("mba_score"),
                            now,
                        ]
                        for f in self.analysis_results["decompiled"]
                    ],
                    "column_names": [
                        "decompiled_function_hash",
                        "decompiled_function",
                        "function_type",
                        "flattened_score",
                        "mba_score",
                        "analysis_date",
                    ],
                    "column_type_names": [
                        "FixedString(64)",
                        "String",
                        "Enum8('USER'=1, 'LIBRARY'=2, 'THUNK'=3, 'EXTERNAL'=4, 'UNKNOWN'=5)",
                        "Nullable(Float64)",
                        "Nullable(Float64)",
                        "DateTime64(3, 'UTC')",
                    ],
                }
                export["decompiled_refs"] = {
                    "table": "code_binja_decompiled_functions_references",
                    "data": [
                        [
                            self.analysis_results["sha256"],
                            self.analysis_results["sha1"],
                            self.analysis_results["md5"],
                            f["decompiled_function_hash"],
                            f.get("disassembled_function_hash"),
                            f["decompiled_function_name"],
                            f["decompiled_function_prototype"],
                            f["decompiled_function_address"],
                            prepare_array_field(f.get("functions_caller"), "Array(String)"),
                            prepare_array_field(f.get("functions_call"), "Array(String)"),
                            now,
                        ]
                        for f in self.analysis_results["decompiled"]
                    ],
                    "column_names": [
                        "sha256",
                        "sha1",
                        "md5",
                        "decompiled_function_hash",
                        "disassembled_function_hash",
                        "decompiled_function_name",
                        "decompiled_function_prototype",
                        "decompiled_function_address",
                        "functions_caller",
                        "functions_call",
                        "analysis_date",
                    ],
                    "column_type_names": [
                        "FixedString(64)",
                        "FixedString(40)",
                        "FixedString(32)",
                        "FixedString(64)",
                        "Nullable(FixedString(64))",
                        "LowCardinality(String)",
                        "LowCardinality(String)",
                        "UInt64",
                        "Array(String)",
                        "Array(String)",
                        "DateTime64(3, 'UTC')",
                    ],
                }

            # Disassembly tables
            if run_disassembly:
                export["disassembled_content"] = {
                    "table": "code_binja_disassembled_functions_content",
                    "data": [
                        [
                            f["disassembled_function_hash"],
                            f.get("disassembled_function", ""),
                            f.get("disassembled_function_no_addresses", ""),
                            f.get("function_type", "UNKNOWN"),
                            f.get("instructions_count", 0),
                            prepare_array_field(
                                f.get("instructions_types"), "LowCardinality(String)"
                            ),
                            f.get("control_flow_count", 0),
                            prepare_array_field(
                                f.get("memory_access_pattern"), "LowCardinality(String)"
                            ),
                            prepare_array_field(
                                f.get("register_usage"), "LowCardinality(String)"
                            ),
                            f.get("data_references_count", 0),
                            f.get("max_block_size"),
                            f.get("num_calls"),
                            f.get("stack_size"),
                            now,
                        ]
                        for f in self.analysis_results["disassembled"]
                    ],
                    "column_names": [
                        "disassembled_function_hash",
                        "disassembled_function",
                        "disassembled_function_no_addresses",
                        "function_type",
                        "instructions_count",
                        "instructions_types",
                        "control_flow_count",
                        "memory_access_pattern",
                        "register_usage",
                        "data_references_count",
                        "max_block_size",
                        "num_calls",
                        "stack_size",
                        "analysis_date",
                    ],
                    "column_type_names": [
                        "FixedString(64)",
                        "String",
                        "String",
                        "Enum8('USER'=1, 'LIBRARY'=2, 'THUNK'=3, 'EXTERNAL'=4, 'UNKNOWN'=5)",
                        "UInt32",
                        "Array(LowCardinality(String))",
                        "UInt32",
                        "Array(LowCardinality(String))",
                        "Array(LowCardinality(String))",
                        "UInt32",
                        "Nullable(UInt32)",
                        "Nullable(UInt32)",
                        "Nullable(Int32)",
                        "DateTime64(3, 'UTC')",
                    ],
                }
                export["disassembled_refs"] = {
                    "table": "code_binja_disassembled_functions_references",
                    "data": [
                        [
                            self.analysis_results["sha256"],
                            self.analysis_results["sha1"],
                            self.analysis_results["md5"],
                            f["disassembled_function_hash"],
                            f.get("decompiled_function_hash"),
                            f["disassembled_function_name"],
                            f["disassembled_function_address"],
                            f.get("tlsh_disassembly"),
                            f.get("tlsh_llil"),
                            now,
                        ]
                        for f in self.analysis_results["disassembled"]
                    ],
                    "column_names": [
                        "sha256",
                        "sha1",
                        "md5",
                        "disassembled_function_hash",
                        "decompiled_function_hash",
                        "disassembled_function_name",
                        "disassembled_function_address",
                        "tlsh_disassembly",
                        "tlsh_llil",
                        "analysis_date",
                    ],
                    "column_type_names": [
                        "FixedString(64)",
                        "FixedString(40)",
                        "FixedString(32)",
                        "FixedString(64)",
                        "Nullable(FixedString(64))",
                        "LowCardinality(String)",
                        "UInt64",
                        "Nullable(FixedString(72))",
                        "Nullable(FixedString(72))",
                        "DateTime64(3, 'UTC')",
                    ],
                }
                # Function similarity metrics table (derived from disassembly data)
                # Lookup maps to join LLIL/MLIL features by disassembled_function_hash
                llil_by_hash = {
                    l.get("disassembled_function_hash"): l
                    for l in self.analysis_results.get("llil", [])
                    if l and l.get("disassembled_function_hash")
                }
                mlil_by_hash = {
                    m.get("disassembled_function_hash"): m
                    for m in self.analysis_results.get("mlil", [])
                    if m and m.get("disassembled_function_hash")
                }

                export["function_similarity_metrics"] = {
                    "table": "code_binja_function_similarity_metrics",
                    "data": [
                        [
                            f["disassembled_function_hash"],
                            f.get("cyclomatic_complexity"),
                            f.get("tlsh_disassembly"),
                            f.get("tlsh_llil"),
                            prepare_array_field(f.get("minhash"), "Array(UInt8)"),
                            (llil_by_hash.get(f["disassembled_function_hash"]) or {}).get("tlsh_llil"),
                            (llil_by_hash.get(f["disassembled_function_hash"]) or {}).get(
                                "tlsh_instruction_typed_llil"),
                            prepare_array_field(
                                (llil_by_hash.get(f["disassembled_function_hash"]) or {}).get("minhash_llil_skeleton"),
                                "Array(UInt8)",
                            ),
                            prepare_array_field(
                                (llil_by_hash.get(f["disassembled_function_hash"]) or {}).get("minhash_llil_typed"),
                                "Array(UInt8)",
                            ),
                            (mlil_by_hash.get(f["disassembled_function_hash"]) or {}).get("tlsh_mlil_skeleton"),
                            (mlil_by_hash.get(f["disassembled_function_hash"]) or {}).get("tlsh_mlil_typed"),
                            prepare_array_field(
                                (mlil_by_hash.get(f["disassembled_function_hash"]) or {}).get("minhash_mlil_skeleton"),
                                "Array(UInt8)",
                            ),
                            prepare_array_field(
                                (mlil_by_hash.get(f["disassembled_function_hash"]) or {}).get("minhash_mlil_typed"),
                                "Array(UInt8)",
                            ),
                            now,
                        ]
                        for f in self.analysis_results.get("disassembled", [])
                    ],
                    "column_names": [
                        "disassembled_function_hash",
                        "cyclomatic_complexity",
                        "tlsh_disassembly",
                        "tlsh_llil",
                        "minhash",
                        "tlsh_llil_new",
                        "tlsh_instruction_typed_llil",
                        "minhash_llil_skeleton",
                        "minhash_llil_typed",
                        "tlsh_mlil_skeleton",
                        "tlsh_mlil_typed",
                        "minhash_mlil_skeleton",
                        "minhash_mlil_typed",
                        "analysis_date",
                    ],
                    "column_type_names": [
                        "FixedString(64)",
                        "Nullable(UInt16)",
                        "Nullable(FixedString(72))",
                        "Nullable(FixedString(72))",
                        "Array(UInt8)",
                        # new
                        "Nullable(FixedString(72))",
                        "Nullable(FixedString(72))",
                        "Array(UInt8)",
                        "Array(UInt8)",
                        "Nullable(FixedString(72))",
                        "Nullable(FixedString(72))",
                        "Array(UInt8)",
                        "Array(UInt8)",
                        "DateTime64(3, 'UTC')",
                    ],
                }


            # LLIL tables
            if run_llil:
                export["llil_content"] = {
                    "table": "code_binja_llil_functions_content",
                    "data": [
                        [
                            f["sha256_llil"],
                            f["function_type"],
                            prepare_array_field(
                                f.get("instructions_types_llil"), "LowCardinality(String)"
                            ),
                            f.get("control_flow_count_llil", 0),
                            prepare_array_field(
                                f.get("memory_access_pattern_llil"), "LowCardinality(String)"
                            ),
                            prepare_register_usage_map(f.get("register_usage", {})),
                            f.get("total_reg_reads", 0),
                            f.get("total_reg_written", 0),
                            f.get("data_references_count", 0),
                            f.get("max_block_size"),
                            f.get("num_calls"),
                            f.get("stack_size"),
                            prepare_array_field(f.get("body_llil_vector"), "Array(Tuple(UInt32, Array(UInt16)))"),
                            now,
                        ]
                        for f in self.analysis_results.get("llil", [])
                    ],
                    "column_names": [
                        "llil_function_hash",
                        "function_type",
                        "instructions_types_llil",
                        "control_flow_count_llil",
                        "memory_access_pattern_llil",
                        "register_usage_llil",
                        "total_reg_reads",
                        "total_reg_written",
                        "data_references_count",
                        "max_block_size",
                        "num_calls",
                        "stack_size",
                        "body_llil_vector",
                        "analysis_date",
                    ],
                    "column_type_names": [
                        "FixedString(64)",
                        "Enum8('USER'=1, 'LIBRARY'=2, 'THUNK'=3, 'EXTERNAL'=4, 'UNKNOWN'=5)",
                        "Array(LowCardinality(String))",
                        "UInt32",
                        "Array(LowCardinality(String))",
                        "Map(LowCardinality(String), Tuple(UInt32, UInt32))",
                        "UInt32",
                        "UInt32",
                        "UInt32",
                        "Nullable(UInt32)",
                        "Nullable(UInt32)",
                        "Nullable(Int32)",
                        "Array(Tuple(UInt32, Array(UInt16)))",
                        "DateTime64(3, 'UTC')",
                    ],
                }
                export["llil_refs"] = {
                    "table": "code_binja_llil_functions_references",
                    "data": [
                        [
                            self.analysis_results["sha256"],
                            self.analysis_results["sha1"],
                            self.analysis_results["md5"],
                            f.get("sha256_llil"),
                            f.get("disassembled_function_hash"),
                            f.get("function_address"),
                            f.get("tlsh_disassembly"),
                            f.get("tlsh_llil"),
                            now,
                        ]
                        for f in self.analysis_results.get("llil", [])
                    ],
                    "column_names": [
                        "sha256",
                        "sha1",
                        "md5",
                        "llil_function_hash",
                        "disassembled_function_hash",
                        "function_address",
                        "tlsh_disassembly",
                        "tlsh_llil",
                        "analysis_date",
                    ],
                    "column_type_names": [
                        "FixedString(64)",
                        "FixedString(40)",
                        "FixedString(32)",
                        "Nullable(FixedString(64))",
                        "FixedString(64)",
                        "UInt64",
                        "Nullable(FixedString(72))",
                        "Nullable(FixedString(72))",
                        "DateTime64(3, 'UTC')",
                    ],
                }

            # Errors table (always include if per-function loop ran)
            if run_decompilation or run_disassembly or run_llil or run_cfg:
                export["function_analysis_errors"] = {
                    "table": "new_function_analysis_errors_binja",
                    "data": [
                        [
                            self.analysis_results["sha256"],
                            f["function_name"],
                            f["function_address"],
                            f.get("error_location", "unknown"),
                            f.get("error_message", ""),
                            f.get("error_details", ""),
                            f.get("error_type", "unknown"),
                            self.calculate_md5(
                                f"{f.get('error_message', '')}{f['function_name']}{f['function_address']}{f.get('error_location', 'unknown')}"
                            ),
                            "new",
                            now,
                        ]
                        for f in self.analysis_results.get("errors", [])
                    ],
                    "column_names": [
                        "sha256",
                        "function_name",
                        "function_address",
                        "error_location",
                        "error_message",
                        "error_details",
                        "error_type",
                        "error_hash",
                        "status",
                        "analysis_date",
                    ],
                    "column_type_names": [
                        "FixedString(64)",
                        "Nullable(String)",
                        "UInt64",
                        "LowCardinality(String)",
                        "Nullable(String)",
                        "Nullable(String)",
                        "Nullable(String)",
                        "FixedString(32)",
                        "Enum8('new'=1, 'investigating'=2, 'fixed'=3, 'wontfix'=4)",
                        "DateTime64(3, 'UTC')",
                    ],
                }

            # Strings table
            if run_strings:
                export["strings_raw"] = {
                    "table": "code_binja_strings_raw",
                    "data": [
                        [
                            self.analysis_results["sha256"],
                            s["string"],
                            s["string_raw"],
                            s["string_encoding"],
                            s["string_offset"],
                            s["string_length"],
                            s["string_raw_length"],
                            s["string_entropy"],
                        ]
                        for s in self.analysis_results.get("strings", [])
                    ],
                    "column_names": [
                        "sha256",
                        "string",
                        "string_raw",
                        "string_encoding",
                        "string_offset",
                        "string_length",
                        "string_raw_length",
                        "string_entropy",
                    ],
                    "column_type_names": [
                        "FixedString(64)",
                        "String",
                        "String",
                        "LowCardinality(String)",
                        "UInt64",
                        "UInt32",
                        "UInt32",
                        "Float32",
                    ],
                }

            # CFG function-level features table
            if run_cfg:
                export["cfg_functions"] = {
                    "table": "code_binja_cfg_functions",
                    "data": [
                        [
                            cfg.get("disassembled_function_hash"),
                            cfg["cfg_topology_hash"],
                            cfg["block_count"],
                            cfg["edge_count"],
                            cfg.get("llil_total_operations", 0),
                            cfg.get("call_count", 0),
                            cfg["cyclomatic_complexity"],
                            cfg.get("loop_count", 0),
                            cfg.get("max_depth", 0),
                            cfg.get("max_fan_out", 0),
                            cfg.get("md_index_topdown", 0),
                            cfg.get("md_index_bottomup", 0),
                            cfg.get("prime_product_llil", 0),
                            cfg.get("cfg_feature_tlsh"),
                            cfg.get("wl_minhash", []),
                            cfg.get("bb_features", []),
                            cfg.get("cfg_adjacency", []),
                            now,
                        ]
                        for cfg in self.analysis_results.get("cfg", [])
                        if cfg is not None
                    ],
                    "column_names": [
                        "disassembled_function_hash",
                        "cfg_topology_hash",
                        "block_count",
                        "edge_count",
                        "llil_total_operations",
                        "call_count",
                        "cyclomatic_complexity",
                        "loop_count",
                        "max_depth",
                        "max_fan_out",
                        "md_index_topdown",
                        "md_index_bottomup",
                        "prime_product_llil",
                        "cfg_feature_tlsh",
                        "wl_minhash",
                        "bb_features",
                        "cfg_adjacency",
                        "analysis_date",
                    ],
                    "column_type_names": [
                        "FixedString(64)",
                        "FixedString(16)",
                        "UInt16",
                        "UInt16",
                        "UInt32",
                        "UInt16",
                        "UInt16",
                        "UInt8",
                        "UInt16",
                        "UInt8",
                        "UInt64",
                        "UInt64",
                        "UInt64",
                        "Nullable(FixedString(72))",
                        "Array(UInt8)",
                        "Array(Array(UInt16))",
                        "Array(UInt32)",
                        "DateTime64(3, 'UTC')",
                    ],
                }

            # GoReSym metadata table (only if goresym data exists)
            if self.goresym_data:
                export["golang_metadata"] = {
                    "table": "redb_golang_metadata",
                    "data": [
                        [
                            self.analysis_results["sha256"],
                            json.dumps(self.goresym_data),
                            now,
                        ]
                    ],
                    "column_names": [
                        "sha256",
                        "goresym",
                        "analysis_date",
                    ],
                    "column_type_names": [
                        "FixedString(64)",
                        "JSON",
                        "DateTime64(3, 'UTC')",
                    ],
                }

            return export

    def tag(self) -> str:
        """Return the tag for this extractor."""
        return Tag.DECOMPILED.value

    def get_clickhouse_table(self) -> str:
        """Not used directly as we're handling multiple tables."""
        pass


if __name__ == "__main__":
    # Setup basic logging
    import logging
    import time

    logging.basicConfig(level=logging.INFO)
    logger = logging.getLogger("DecompileBinja")

    # Parse command line arguments
    import argparse

    parser = argparse.ArgumentParser(description="Binary Ninja Decompiler Wrapper")
    parser.add_argument("filepath", help="Path to the binary file to analyze")
    parser.add_argument(
        "--output", "-o", help="Output JSON file path (default: stdout)"
    )
    parser.add_argument(
        "--timeout",
        "-t",
        type=int,
        default=1200,
        help="Analysis timeout in seconds (default: 1200)",
    )
    args = parser.parse_args()
    start = time.perf_counter()
    # Create and run the extractor
    with DecompileBinja(args.filepath, logger) as extractor:
        success = extractor.extract()
        end = time.perf_counter()
        if not success:
            logger.error("Analysis failed")
            exit(1)

        # Output results
        if args.output:
            with open(args.output, "w") as f:
                json.dump(extractor.analysis_results, f)
            logger.info(f"Results written to {args.output}")
        else:
            print((extractor.analysis_results))
            with open("diff", "w") as f:
                f.write(str(f"{end - start:.3f} seconds"))