release/21.x: [libc++][AIX] Fixup problems with ABI list checking (#155643) #156502
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There are some problems with our ABI list checking exposed by recent compiler/cmake upgrades. - For symcheck, there are typos in how XCOFF magic are defined, we intended the second two digits to be a hex value, but our syntax doesn't say that. Thus this will never match a valid XCOFF file. - AIX triples can have version numbers. Those need to be discarded when looking for an libc++ ABI list, like we do for other targets. (cherry picked from commit b8456e2)
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@hubert-reinterpretcast What do you think about merging this PR to the release branch? |
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Backport b8456e2
Requested by: @amy-kwan