kallsyms_finder.KallsymsNotFoundException: No embedded symbol table found in this kernel

[tower111]

An error is reported when extracting an arm architecture kernel

(base) ➜  ex /home/tower/tools/vmlinux-to-elf/vmlinux-to-elf --e-machine 9 --bit-size 32 ./uImage ./vmlinux_elf
[+] Kernel successfully decompressed in-memory (the offsets that follow will be given relative to the decompressed binary)
[+] Version string: Linux version 4.9.84 (jenkins@Vcilnx2) (gcc version 4.9.4 (Buildroot 2017.08-gc7bbae9-dirty) ) #1 PREEMPT Thu Mar 30 17:38:36 CST 2023
Traceback (most recent call last):
  File "/home/tower/tools/vmlinux-to-elf/vmlinux_to_elf/kallsyms_finder.py", line 201, in __init__
    self.find_kallsyms_names_uncompressed()
  File "/home/tower/tools/vmlinux-to-elf/vmlinux_to_elf/kallsyms_finder.py", line 544, in find_kallsyms_names_uncompressed
    raise KallsymsNotFoundException('No embedded symbol table found in this kernel')
kallsyms_finder.KallsymsNotFoundException: No embedded symbol table found in this kernel

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/tower/tools/vmlinux-to-elf/vmlinux-to-elf", line 63, in <module>
    ElfSymbolizer(
  File "/home/tower/tools/vmlinux-to-elf/vmlinux_to_elf/elf_symbolizer.py", line 44, in __init__
    kallsyms_finder = KallsymsFinder(file_contents, bit_size)
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/tower/tools/vmlinux-to-elf/vmlinux_to_elf/kallsyms_finder.py", line 206, in __init__
    raise first_error
  File "/home/tower/tools/vmlinux-to-elf/vmlinux_to_elf/kallsyms_finder.py", line 194, in __init__
    self.find_kallsyms_token_table()
  File "/home/tower/tools/vmlinux-to-elf/vmlinux_to_elf/kallsyms_finder.py", line 425, in find_kallsyms_token_table
    raise KallsymsNotFoundException('%d candidates for kallsyms_token_table in kernel image' % len(candidates_offsets))
kallsyms_finder.KallsymsNotFoundException: 0 candidates for kallsyms_token_table in kernel image
(base) ➜  ex file ./uImage
./uImage: u-boot legacy uImage, Linux-4.9.84, Linux/ARM, OS Kernel Image (Not compressed), 1429376 bytes, Thu Mar 30 09:38:42 2023, Load Address: 0x20008000, Entry Point: 0x20008000, Header CRC: 0xE5DD206F, Data CRC: 0x0C8C1F3C
(base) ➜  ex binwalk uImage

DECIMAL       HEXADECIMAL     DESCRIPTION
--------------------------------------------------------------------------------
0             0x0             uImage header, header size: 64 bytes, header CRC: 0xE5DD206F, created: 2023-03-30 09:38:42, image size: 1429376 bytes, Data Address: 0x20008000, Entry Point: 0x20008000, data CRC: 0xC8C1F3C, OS: Linux, CPU: ARM, image type: OS Kernel Image, compression type: none, image name: "Linux-4.9.84"
14947         0x3A63          xz compressed data
15281         0x3BB1          xz compressed data

(base) ➜  ex