scm - Build ID’s
A BuildID is being added to the gnu linker, ld, by Roland McGrath. I saw this mentioned in these instructions for building the Android kernel from source, which didn’t support the new switch and it had to be disabled.
Anyway, Roland had a problem where he wanted to identify exactly where the binaries came from when inspecting a post-mortem dump. Especially when the dump could have happened long after the build was actually done. While at nxp we had this problem and generally relied upon the svn release number. That worked but isn’t actually unique enough especially when a particular build might be one by a developer and not an official release.
Anyway, this looks to be a possible solution