[Object] Don't crash on empty export lists.
Summary: This fixes the exports iterator if the export list is empty. Reviewers: Bigcheese, kledzik Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D6732 llvm-svn: 224563
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@ -1640,7 +1640,10 @@ void ExportEntry::moveNext() {
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iterator_range<export_iterator>
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iterator_range<export_iterator>
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MachOObjectFile::exports(ArrayRef<uint8_t> Trie) {
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MachOObjectFile::exports(ArrayRef<uint8_t> Trie) {
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ExportEntry Start(Trie);
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ExportEntry Start(Trie);
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Start.moveToFirst();
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if (Trie.size() == 0)
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Start.moveToEnd();
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else
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Start.moveToFirst();
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ExportEntry Finish(Trie);
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ExportEntry Finish(Trie);
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Finish.moveToEnd();
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Finish.moveToEnd();
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Binary file not shown.
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@ -0,0 +1,4 @@
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RUN: llvm-objdump -exports-trie %p/Inputs/macho-no-exports.dylib | FileCheck %s
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; Test that we don't crash with an empty export list.
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CHECK: macho-no-exports.dylib: file format Mach-O 64-bit x86-64
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