JuliaIO / JuliaIO/ObjectFile.jl

Spurious symbols found in COFF object

Open
#33 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Dominant language
Julia
Stars
17
Forks
12
PR merge metrics
No merged PRs in 30d

Description

In file bin/libnetcdf-19.dll from https://github.com/JuliaBinaryWrappers/NetCDF_jll.jl/releases/download/NetCDF-v400.802.100%2B0/NetCDF.v400.802.100.x86_64-w64-mingw32.tar.gz I get

julia> using ObjectFile

julia> readmeta("./libnetcdf-19.dll") do oh
           symbol_name.(Symbols(oh))
       end
11231-element Vector{AbstractString}:
 ".file"
 "crtdll.c"
 "pre_c_init"
 ""
 "atexit_table"
 "_CRT_INIT"
 "__proc_attached"
 "__DllMainCRTStartup"
 "DllMainCRTStartup"
 "atexit"
 ".text"
 "3-byte String of invalid UTF-8 data"
 ".data"
 "\x01"
 ".bss"
 "\x1c"
 ⋮
 "__imp_H5Tget_native_type"
 "H5Dcreate2"
 "__fu61_H5P_CLS_DATASET_CREATE_ID_g"
 "nc4_chunk_cache_nelems"
 "__imp_fseek"
 "vfprintf"
 "__imp_H5Eset_auto1"
 "H5Pget_fill_value"
 "__imp_H5Pset_file_image"
 "__imp_H5Sget_simple_extent_dims"
 "free"
 "__security_cookie"
 "__imp_H5Tcommit1"
 "__imp_H5Pset_file_image_callbacks"
 "UDF0_dispatch_table"
 "__imp__findclose"

There are plenty of suspiciously wrong symbols like ".file", "crtdll.c", or "3-byte String of invalid UTF-8 data".

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the report by downloading the linked NetCDF DLL and running readmeta with Symbols(oh). Trace how the COFF symbols are read and named, then verify that the resulting symbol list no longer includes section names, source-file entries, invalid UTF-8, or other spurious values.

Written by the indexing model from the issue text.

Assessment

Tech stack
julia
Domain
devtools, operating-systems
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
32/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.