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Pull request overview
This PR introduces a new build-time verification tool that checks whether undefined symbols in kernel modules (.ko files) are properly exported by the kernel (vmlinux). This helps catch symbol resolution issues during the build process rather than at runtime.
Key changes:
- Adds a new C tool
check_symbolthat parses ELF files and validates symbol references - Integrates the tool into the kernel build process to automatically verify symbols after module compilation
- Updates
.gitignoreto exclude the compiledcheck_symbolbinary
Reviewed changes
Copilot reviewed 3 out of 3 changed files in this pull request and generated 14 comments.
| File | Description |
|---|---|
| kernel/tools/check_symbol.c | New ELF parsing utility that validates kernel module symbols against vmlinux exports |
| kernel/Makefile | Adds build target for check_symbol tool and integrates it into the module build process |
| kernel/.gitignore | Excludes the compiled check_symbol binary from version control |
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It shouldn't in built-in build This reverts commit 9363e9c.
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