[ELD] Identify ELD in .comment section - #2062
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Ricardo Alves de Souza (ricardoasouz) wants to merge 1 commit into
Open
Ricardo Alves de Souza (ricardoasouz) wants to merge 1 commit into
Ricardo Alves de Souza (ricardoasouz) wants to merge 1 commit into
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Emit the linker identification in the LLD style, "Linker: [<vendor> ]ELD <version> [(<revision>)]", instead of "[<vendor>] Linker <version> (<revision>)", so that images linked by ELD are easy to recognize with readelf -p .comment. The revision is formatted with getELDRepositoryVersion(), as --repository-version already does, so no empty "()" is emitted when the build has no revision information. Fixes qualcomm#2038 Signed-off-by: Ricardo Alves de Souza <ricardoasouz@hotmail.com>
Ricardo Alves de Souza (ricardoasouz)
requested a review
from Shankar Easwaran (quic-seaswara)
as a code owner
October 4, 2026 10:31
Shankar Easwaran (quic-seaswara)
requested changes
Oct 5, 2026
| VersionString += ELDRepositoryVersion; | ||
| } | ||
| if (m_Module.needLTOToBeInvoked() || config().options().hasLTO()) | ||
| VersionString += " LTO Enabled "; |
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We can remove the LTO enabled from the version output.
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Summary
Update the
.commentlinker identification to follow the LLD-style format and make binaries linked by ELD easy to recognize.Before:
After:
When a vendor is configured, it is emitted before
ELD:The revision information is formatted with
getELDRepositoryVersion(), consistent with--repository-version. This also avoids emitting an empty()when revision information is unavailable.Tests
Updated the existing
.commentchecks to verify the ELD identity in both normal and LTO outputs.RevisionInfoUpdateOnBuildis currently marked unsupported because it rebuildsld.eldand can race with other tests. Its updated FileCheck pattern was therefore validated directly against the.commentoutput from the patched linker.Validation performed:
The generated ELF
.commentsection was also manually verified to contain:Fixes #2038