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f8617a2466
I use CROSS_TOOLCHAIN quite frequently, but can't do so when building kernels with KASAN or KMSAN enabled since these patches didn't make it into LLVM 12. This diff just backports them to the port. I believe this is low-risk and thus is acceptable for the port, as opposed to waiting for LLVM 13. Differential Revision: https://reviews.freebsd.org/D31316
33 lines
1.2 KiB
C++
33 lines
1.2 KiB
C++
[Driver] Default to libc++ on FreeBSD
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Downstream may naively translate between DSL and LLVM target
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triple. If OS version is lost in the process then Clang would
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default to a version that's no longer supported by OS vendor.
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https://reviews.llvm.org/D77776
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--- clang/lib/Driver/ToolChains/FreeBSD.cpp.orig 2021-06-28 16:23:38 UTC
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+++ clang/lib/Driver/ToolChains/FreeBSD.cpp
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@@ -466,6 +466,7 @@ bool FreeBSD::IsUnwindTablesDefault(const ArgList &Arg
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bool FreeBSD::isPIEDefault() const { return getSanitizerArgs().requiresPIE(); }
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SanitizerMask FreeBSD::getSupportedSanitizers() const {
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+ const bool IsAArch64 = getTriple().getArch() == llvm::Triple::aarch64;
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const bool IsX86 = getTriple().getArch() == llvm::Triple::x86;
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const bool IsX86_64 = getTriple().getArch() == llvm::Triple::x86_64;
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const bool IsMIPS64 = getTriple().isMIPS64();
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@@ -484,8 +485,13 @@ SanitizerMask FreeBSD::getSupportedSanitizers() const
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Res |= SanitizerKind::Fuzzer;
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Res |= SanitizerKind::FuzzerNoLink;
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}
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- if (IsX86_64)
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+ if (IsAArch64 || IsX86_64) {
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+ Res |= SanitizerKind::KernelAddress;
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+ Res |= SanitizerKind::KernelMemory;
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+ }
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+ if (IsX86_64) {
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Res |= SanitizerKind::Memory;
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+ }
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return Res;
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}
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