Revert "[OHOS] Add support for OpenHarmony"

This reverts commit c417b7a.

Huawei is currently under U.S. government sanctions.
Additionally, their approach to PC restrictions contradicts the
principles of open-source software, particularly in relation to
LLVM. By promoting a locked-down ecosystem on PC, they undermine the
fundamental openness that LLVM aims to support.

The 23,999 CNY (3,333.46 USD) and 29,999 CNY (4,166.86 USD) PCs appear
to restrict users to an app store environment, preventing installation
of alternative operating systems, running executables, and sideloading
applications. This level of control limits user freedom and is
inconsistent with the core philosophy of open-source software.
The pricing is excessively high without offering hardware value
that justifies the cost, seemingly catering more to materialism,
extreme nationalism and
profit-driven motives rather than genuine innovation or user benefit.

They market their OS as "open," but in practice, it does not prioritize
openness for end users. Instead, the term appears to be more of a promotional
slogan rather than a true commitment to open-source principles or user freedom.

Furthermore, Huawei representatives have engaged in discussions on GitHub
without actively contributing patches, including within the Microsoft VSCode
project. Given that VSCode does not support locked-down operating systems
such as iOS, the relevance of their involvement is questionable—especially
considering that Huawei Next is a locked-down PC incapable of running
independent programs.
A development environment should enable programmers to execute the code they write.

The Chinese open-source community, generally speaking, does not support Huawei’s
approach in this regard.
As a response, this patch removes support for Huawei OpenHarmony and its variants,
as well as Harmony Next (a walled-garden OS), from the LLVM upstream repository.

Author: trcrsired

llvm/include/llvm/BinaryFormat/MinidumpConstants.def

@@ -119,7 +119,6 @@ HANDLE_MDMP_PLATFORM(0x8202, Solaris) // Solaris
 HANDLE_MDMP_PLATFORM(0x8203, Android) // Android
 HANDLE_MDMP_PLATFORM(0x8204, PS3) // PS3
 HANDLE_MDMP_PLATFORM(0x8205, NaCl) // Native Client (NaCl)
-HANDLE_MDMP_PLATFORM(0x8206, OpenHOS) // OpenHarmony OS
 
 HANDLE_MDMP_PROTECT(0x01, NoAccess, PAGE_NO_ACCESS)
 HANDLE_MDMP_PROTECT(0x02, ReadOnly, PAGE_READ_ONLY)

llvm/include/llvm/TargetParser/Triple.h

@@ -237,7 +237,6 @@ class Triple {
     WASI,       // Experimental WebAssembly OS
     Emscripten,
     ShaderModel, // DirectX ShaderModel
-    LiteOS,
     Serenity,
     Vulkan, // Vulkan SPIR-V
     LastOSType = Vulkan
@@ -299,7 +298,6 @@ class Triple {
     Mesh,
     Amplification,
     OpenCL,
-    OpenHOS,
     Mlibc,
 
     PAuthTest,
@@ -825,18 +823,9 @@ class Triple {
            getEnvironment() == Triple::MuslEABIHF ||
            getEnvironment() == Triple::MuslF32 ||
            getEnvironment() == Triple::MuslSF ||
-           getEnvironment() == Triple::MuslX32 ||
-           getEnvironment() == Triple::OpenHOS || isOSLiteOS();
+           getEnvironment() == Triple::MuslX32;
   }
 
-  /// Tests whether the target is OHOS
-  /// LiteOS default enviroment is also OHOS, but omited on triple.
-  bool isOHOSFamily() const { return isOpenHOS() || isOSLiteOS(); }
-
-  bool isOpenHOS() const { return getEnvironment() == Triple::OpenHOS; }
-
-  bool isOSLiteOS() const { return getOS() == Triple::LiteOS; }
-
   /// Tests whether the target is DXIL.
   bool isDXIL() const {
     return getArch() == Triple::dxil;
@@ -912,7 +901,6 @@ class Triple {
             getEnvironment() == Triple::EABIHF ||
             getEnvironment() == Triple::GNUEABIHF ||
             getEnvironment() == Triple::GNUEABIHFT64 ||
-            getEnvironment() == Triple::OpenHOS ||
             getEnvironment() == Triple::MuslEABIHF || isAndroid()) &&
            isOSBinFormatELF();
   }
@@ -1122,7 +1110,7 @@ class Triple {
   /// Note: Android API level 29 (10) introduced ELF TLS.
   bool hasDefaultEmulatedTLS() const {
     return (isAndroid() && isAndroidVersionLT(29)) || isOSOpenBSD() ||
-           isWindowsCygwinEnvironment() || isOHOSFamily();
+           isWindowsCygwinEnvironment();
   }
 
   /// True if the target uses TLSDESC by default.

llvm/lib/Target/ARM/ARMSubtarget.h

@@ -369,8 +369,7 @@ class ARMSubtarget : public ARMGenSubtargetInfo {
   }
   bool isTargetMuslAEABI() const {
     return (TargetTriple.getEnvironment() == Triple::MuslEABI ||
-            TargetTriple.getEnvironment() == Triple::MuslEABIHF ||
-            TargetTriple.getEnvironment() == Triple::OpenHOS) &&
+            TargetTriple.getEnvironment() == Triple::MuslEABIHF) &&
            !isTargetDarwin() && !isTargetWindows();
   }
 

llvm/lib/Target/ARM/ARMTargetMachine.cpp

@@ -245,8 +245,7 @@ ARMBaseTargetMachine::ARMBaseTargetMachine(const Target &T, const Triple &TT,
          TargetTriple.getEnvironment() == Triple::GNUEABIHF ||
          TargetTriple.getEnvironment() == Triple::GNUEABIHFT64 ||
          TargetTriple.getEnvironment() == Triple::MuslEABI ||
-         TargetTriple.getEnvironment() == Triple::MuslEABIHF ||
-         TargetTriple.getEnvironment() == Triple::OpenHOS) &&
+         TargetTriple.getEnvironment() == Triple::MuslEABIHF) &&
         !(TargetTriple.isOSWindows() || TargetTriple.isOSDarwin()))
       this->Options.EABIVersion = EABI::GNU;
     else

llvm/lib/TargetParser/AArch64TargetParser.cpp

@@ -138,7 +138,7 @@ void AArch64::fillValidCPUArchList(SmallVectorImpl<StringRef> &Values) {
 
 bool AArch64::isX18ReservedByDefault(const Triple &TT) {
   return TT.isAndroid() || TT.isOSDarwin() || TT.isOSFuchsia() ||
-         TT.isOSWindows() || TT.isOHOSFamily();
+         TT.isOSWindows();
 }
 
 // Allows partial match, ex. "v8a" matches "armv8a".

llvm/lib/TargetParser/ARMTargetParser.cpp

@@ -568,8 +568,7 @@ StringRef ARM::computeDefaultTargetABI(const Triple &TT, StringRef CPU) {
   default:
     if (TT.isOSNetBSD())
       return "apcs-gnu";
-    if (TT.isOSFreeBSD() || TT.isOSOpenBSD() || TT.isOSHaiku() ||
-        TT.isOHOSFamily())
+    if (TT.isOSFreeBSD() || TT.isOSOpenBSD() || TT.isOSHaiku())
       return "aapcs-linux";
     return "aapcs";
   }

llvm/lib/TargetParser/Triple.cpp

@@ -318,7 +318,6 @@ StringRef Triple::getOSTypeName(OSType Kind) {
   case Win32: return "windows";
   case ZOS: return "zos";
   case ShaderModel: return "shadermodel";
-  case LiteOS: return "liteos";
   case XROS: return "xros";
   case Vulkan: return "vulkan";
   }
@@ -381,7 +380,6 @@ StringRef Triple::getEnvironmentTypeName(EnvironmentType Kind) {
   case Amplification: return "amplification";
   case OpenCL:
     return "opencl";
-  case OpenHOS: return "ohos";
   case PAuthTest:
     return "pauthtest";
   case LLVM:
@@ -713,7 +711,6 @@ static Triple::OSType parseOS(StringRef OSName) {
     .StartsWith("wasi", Triple::WASI)
     .StartsWith("emscripten", Triple::Emscripten)
     .StartsWith("shadermodel", Triple::ShaderModel)
-    .StartsWith("liteos", Triple::LiteOS)
     .StartsWith("serenity", Triple::Serenity)
     .StartsWith("vulkan", Triple::Vulkan)
     .Default(Triple::UnknownOS);
@@ -768,7 +765,6 @@ static Triple::EnvironmentType parseEnvironment(StringRef EnvironmentName) {
       .StartsWith("mesh", Triple::Mesh)
       .StartsWith("amplification", Triple::Amplification)
       .StartsWith("opencl", Triple::OpenCL)
-      .StartsWith("ohos", Triple::OpenHOS)
       .StartsWith("pauthtest", Triple::PAuthTest)
       .StartsWith("llvm", Triple::LLVM)
       .StartsWith("mlibc", Triple::Mlibc)

llvm/test/CodeGen/AArch64/arm64-platform-reg.ll

@@ -2,7 +2,6 @@
 ; RUN: llc -mtriple=arm64-freebsd-gnu -mattr=+reserve-x18 -o - %s | FileCheck %s --check-prefix=CHECK-RESERVE --check-prefix=CHECK-RESERVE-X18
 ; RUN: llc -mtriple=arm64-linux-gnu -o - %s | FileCheck %s
 ; RUN: llc -mtriple=aarch64-linux-android -o - %s | FileCheck %s --check-prefix=CHECK-RESERVE --check-prefix=CHECK-RESERVE-X18
-; RUN: llc -mtriple=aarch64-linux-ohos -o - %s | FileCheck %s --check-prefix=CHECK-RESERVE --check-prefix=CHECK-RESERVE-X18
 ; RUN: llc -mtriple=aarch64-fuchsia -o - %s | FileCheck %s --check-prefix=CHECK-RESERVE --check-prefix=CHECK-RESERVE-X18
 ; RUN: llc -mtriple=aarch64-windows -o - %s | FileCheck %s --check-prefix=CHECK-RESERVE --check-prefix=CHECK-RESERVE-X18
 

llvm/unittests/TargetParser/TripleTest.cpp

@@ -1289,18 +1289,6 @@ TEST(TripleTest, ParsedIDs) {
   EXPECT_EQ(Triple::UnknownOS, T.getOS());
   EXPECT_EQ(Triple::UnknownEnvironment, T.getEnvironment());
 
-  T = Triple("arm-unknown-linux-ohos");
-  EXPECT_EQ(Triple::arm, T.getArch());
-  EXPECT_EQ(Triple::UnknownVendor, T.getVendor());
-  EXPECT_EQ(Triple::Linux, T.getOS());
-  EXPECT_EQ(Triple::OpenHOS, T.getEnvironment());
-
-  T = Triple("arm-unknown-liteos");
-  EXPECT_EQ(Triple::arm, T.getArch());
-  EXPECT_EQ(Triple::UnknownVendor, T.getVendor());
-  EXPECT_EQ(Triple::LiteOS, T.getOS());
-  EXPECT_EQ(Triple::UnknownEnvironment, T.getEnvironment());
-
   T = Triple("x86_64-pc-serenity");
   EXPECT_EQ(Triple::x86_64, T.getArch());
   EXPECT_EQ(Triple::PC, T.getVendor());