It would be awesome to use the sanitizers to find native code bugs in openjdk, but it seems like a serious project. Here at Google we are doing our small part by improving support for clang on Linux.
On Wed, Sep 5, 2018 at 6:17 PM, Leslie Zhai <zhaixi...@loongson.cn> wrote: > It might be UBSan false positive :) What about ASan? > https://bugs.openjdk.java.net/browse/JDK-8189800 > > > 在 2018年09月06日 09:12, Martin Buchholz 写道: > >> it's difficult to use llvm tools like sanitizers on openjdk sources, >> because of the "cheating" - relying on undefined behavior, and the JIT. >> >> On Wed, Sep 5, 2018 at 6:09 PM, Leslie Zhai <zhaixi...@loongson.cn >> <mailto:zhaixi...@loongson.cn>> wrote: >> >> Hi Martin, >> >> Thanks for your response! >> >> I haven't tested compiling OpenJDK 12-dev with LLVM toolchain, >> perhaps the issue had been fixed already, because clang treat >> invalid argument '-std=gnu++98' not allowed with 'C' as error. It >> is better only apply EXTRA_CFLAGS to C without EXTRA_CXXFLAGS. >> >> Furthermore, I just have interest, did you use clang analyzer, >> sanitizer and libfuzzer towards hotspot and jdk native library? >> Thanks! >> >> >> 在 2018年09月06日 02:10, Martin Buchholz 写道: >> >> We seem to have some confusion about flags for C vs. flags for >> C++. Most flags for most toolchains apply to both C and C++, >> so it's understandable that we want to unify them. But some >> flags, notably -std, are language-specific. We have both >> EXTRA_CFLAGS and EXTRA_CXXFLAGS, so we should expect >> EXTRA_CFLAGS to only apply to C. >> >> >> -- Regards, >> Leslie Zhai >> >> >> >> > -- > Regards, > Leslie Zhai > > >
