On Mar 19, 2014, at 13:52 , Greg Parker <[email protected]> wrote: > On Mar 19, 2014, at 1:32 PM, Rick Mann <[email protected]> wrote: >> While investigating this crash that only happens on our AppStore binary, I >> noticed that the executable inside the package is different (from the one we >> submitted). Does Apple modify that executable? > > The executable is re-signed by the App Store, at the very least.
I thought the signature lived outside the binary (in MyApp.app/_CodeSignature)...? > There may also be some post-processing of universal binaries (to distribute > thin binaries to devices or to work around bugs in universal binary handling > in older OS versions). I can't remember what has been used versus what has > merely been proposed. > > You should double-check that the App Store file's UUID matches the UUID in > the file that you submitted. The UUID is unchanged by the App Store. If it is > different then you're probably looking at the wrong file on one side or the > other. Yep, they match. Anyway, the real problem is that Apple's libProtobuf.dylib is somehow calling back into our app's statically-linked protobuf code: Thread 4 Crashed: 0 libc++.1.dylib 0x3b35e2b5 std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::basic_string(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) + 5 1 MatterScan 0x001e6961 google::protobuf::SimpleDescriptorDatabase::DescriptorIndex<std::__1::pair<void const*, int> >::AddFile(google::protobuf::FileDescriptorProto const&, std::__1::pair<void const*, int>) + 45 2 libprotobuf.dylib 0x3bbed247 google::protobuf::EncodedDescriptorDatabase::Add(void const*, int) + 127 3 libprotobuf.dylib 0x3bbcd3cd google::protobuf::DescriptorPool::InternalAddGeneratedFile(void const*, int) + 73 4 libprotobuf.dylib 0x3bbf2967 google::protobuf::protobuf_AddDesc_google_2fprotobuf_2fdescriptor_2eproto() + 143 5 libprotobuf.dylib 0x3bc0657d _GLOBAL__I_a + 5 6 dyld 0x2be6c59f ImageLoaderMachO::doModInitFunctions(ImageLoader::LinkContext const&) + 175 7 dyld 0x2be6c6ad ImageLoaderMachO::doInitialization(ImageLoader::LinkContext const&) + 17 ... Others have experienced this, too: http://stackoverflow.com/questions/19848118/weird-ios-libprotobuf-dylib-cause-crash -- Rick
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