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
