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* feat(executable): capture GNU ELF build IDs Capture GNU ELF build IDs in Syft JSON so consumers can correlate otherwise unidentified binaries with known artifacts or build records. Read GNU build-ID notes from .note.gnu.build-id, with a 64 KiB read limit. Validate the note owner and type before recording the identifier. Add focused extraction and JSON round-trip tests and update the schema. Signed-off-by: Mario Corchero <mcorcherojim@bloomberg.net> * chore: bump JSON schema to 16.1.13 for executable identifiers 16.1.12 landed on main for coordinate fullPath, so the identifiers addition moves to the next version. Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com> * feat(executable): capture go build IDs from .note.go.buildid The go linker only writes a GNU build ID with -B or when linking externally, so most pure-Go binaries had no identifier. Every go ELF carries .note.go.buildid, captured as kind `go-build-id` in the form `go tool buildid` prints. Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com> * docs(executable): describe identifiers generically Identifier field docs (and the published schema) now give GNU hex and Go build IDs as examples instead of stating every value is a GNU build ID in lowercase hex, so the contract holds as more kinds are added. Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com> * fix(executable): keep identifier notes inside elfutil bounds Register `.note.gnu.build-id` and `.note.go.buildid` in elfutil's sectionsReadByName as that list asks, and never open a compressed identifier note. Real ones are SHF_ALLOC and cannot be compressed, so this drops the only decompression path into these reads. Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com> * test(executable): check identifiers from real linker output Cross-compiles a tiny go program with `-B` so the test sees a GNU build ID and a go build ID written by an actual linker and read through the cataloger entrypoint. Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com> --------- Signed-off-by: Mario Corchero <mcorcherojim@bloomberg.net> Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com> Co-authored-by: Mario Corchero <mcorcherojim@bloomberg.net> Co-authored-by: Alex Goodman <wagoodman@users.noreply.github.com>