================
@@ -1702,6 +1703,37 @@ static uint8_t getOsAbi(const Triple &t) {
}
}
+// Check if an archive file is a thin archive.
+static bool isThinArchive(Ctx &ctx, StringRef archiveFilePath) {
+ const size_t thinArchiveMagicLen = sizeof(ThinArchiveMagic) - 1;
+
+ ErrorOr<std::unique_ptr<MemoryBuffer>> memBufferOrError =
+ MemoryBuffer::getFileSlice(archiveFilePath, thinArchiveMagicLen, 0);
+ if (std::error_code ec = memBufferOrError.getError()) {
+ ErrAlways(ctx) << "cannot open " << archiveFilePath << ": " <<
ec.message();
+ return false;
+ }
+
+ MemoryBufferRef memBufRef = *memBufferOrError.get();
+ return memBufRef.getBuffer().starts_with(ThinArchiveMagic);
+}
+
+// Compute a thin archive member full file path.
+static std::string
+computeThinArchiveMemberFullPath(const StringRef modulePath,
----------------
bd1976bris wrote:
Done. Thanks.
https://github.com/llvm/llvm-project/pull/126654
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