Emit file size and hash for source files in DWARF debug info (DWARF 4 and 5)
Open
Nobody has claimed this yet.
A-debuginfo
C-enhancement
needs-triage
T-compiler
- Dominant language
- Rust
- Stars
- 119k
- Forks
- 16.1k
- PR merge metrics
- PR metrics pending
Description
Emitting them enables debuggers to detect stale and out-of-sync source files (see https://github.com/al13n321/nnd/issues/51). Both DWARF 4 and DWARF 5 support file size as .debug_line, and DWARF 5 supports md5 hashes via DW_LNCT_MD5, which clang always emits.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
No source file, test, or entry point is named. Start by locating Rust's DWARF debug-line emission and compare its DWARF 4 and 5 handling with the stated .debug_line file-size support and DWARF 5 DW_LNCT_MD5 behavior; done means emitted size and hash data lets debuggers detect stale source files.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- compilers
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100