f7e8f5d439
[ELF] Handle non-glob patterns before glob patterns in version scripts & fix a corner case of --dynamic-list This fixes PR38549, which is silently accepted by ld.bfd. This seems correct because it makes sense to let non-glob patterns take precedence over glob patterns. lld issues an error because `assignWildcardVersion(ver, VER_NDX_LOCAL);` is processed before `assignExactVersion(ver, v.id, v.name);`. Move all assignWildcardVersion() calls after assignExactVersion() calls to fix this. Also, move handleDynamicList() to the bottom. computeBinding() called by includeInDynsym() has this cryptic rule: if (versionId == VER_NDX_LOCAL && isDefined() && !isPreemptible) return STB_LOCAL; Before the change: * foo's version is set to VER_NDX_LOCAL due to `local: *` * handleDynamicList() is called - foo.computeBinding() is STB_LOCAL - foo.includeInDynsym() is false - foo.isPreemptible is not set (wrong) * foo's version is set to V1 After the change: * foo's version is set to VER_NDX_LOCAL due to `local: *` * foo's version is set to V1 * handleDynamicList() is called - foo.computeBinding() is STB_GLOBAL - foo.includeInDynsym() is true - foo.isPreemptible is set (correct) Reviewed By: ruiu Differential Revision: https://reviews.llvm.org/D64550 This makes it longer necessary to patch the version scripts for the samba ports, to avoid "duplicate symbol 'pdb_search_init' in version script" errors. PR: 230602 MFC after: 3 days |
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