HermitCore is a POSIX-compatible kernel for running a single application in an isolated environment to get maximum performance and predictable runtime behavior. It can either be used bare-metal on hardware or a VM (Unikernel) or side by side to an existing Linux system (Multikernel).
Due to the latter feature, HermitCore binaries are marked with ELFOSABI_STANDALONE to let the Linux ELF loader distinguish them from regular Unix/Linux binaries and load them using the HermitCore "proxy" tool.
Patch by Colin Finck!
llvm-svn: 340675
Mesa3D,
Contiki,
AMDPAL, // AMD PAL Runtime
- LastOSType = AMDPAL
+ HermitCore, // HermitCore Unikernel/Multikernel
+ LastOSType = HermitCore
};
enum EnvironmentType {
UnknownEnvironment,
switch (OSType) {
case Triple::CloudABI:
return ELF::ELFOSABI_CLOUDABI;
+ case Triple::HermitCore:
+ return ELF::ELFOSABI_STANDALONE;
case Triple::PS4:
case Triple::FreeBSD:
return ELF::ELFOSABI_FREEBSD;
case Mesa3D: return "mesa3d";
case Contiki: return "contiki";
case AMDPAL: return "amdpal";
+ case HermitCore: return "hermit";
}
llvm_unreachable("Invalid OSType");
.StartsWith("mesa3d", Triple::Mesa3D)
.StartsWith("contiki", Triple::Contiki)
.StartsWith("amdpal", Triple::AMDPAL)
+ .StartsWith("hermit", Triple::HermitCore)
.Default(Triple::UnknownOS);
}
EXPECT_EQ(Triple::Fuchsia, T.getOS());
EXPECT_EQ(Triple::UnknownEnvironment, T.getEnvironment());
+ T = Triple("x86_64-unknown-hermit");
+ EXPECT_EQ(Triple::x86_64, T.getArch());
+ EXPECT_EQ(Triple::UnknownVendor, T.getVendor());
+ EXPECT_EQ(Triple::HermitCore, T.getOS());
+ EXPECT_EQ(Triple::UnknownEnvironment, T.getEnvironment());
+
T = Triple("wasm32-unknown-unknown");
EXPECT_EQ(Triple::wasm32, T.getArch());
EXPECT_EQ(Triple::UnknownVendor, T.getVendor());