[clang] Revert "[Driver] Add toolchain for X86_64 UEFI target" (PR #109340)

via cfe-commits cfe-commits at lists.llvm.org
Thu Sep 19 14:54:44 PDT 2024


https://github.com/Prabhuk created https://github.com/llvm/llvm-project/pull/109340

Reverts llvm/llvm-project#76838

Appears to be causing failures in MAC builders. First reverting the patch and will investigate after.

>From 7830c3e9d61e168a1de1fa2b33acc3fd4e22f2ed Mon Sep 17 00:00:00 2001
From: Prabhuk <prabhukrllvm at gmail.com>
Date: Thu, 19 Sep 2024 14:53:55 -0700
Subject: [PATCH] Revert "[Driver] Add toolchain for X86_64 UEFI target
 (#76838)"

This reverts commit d1335fb86466221b0499db5fc8f158f1f64d9542.
---
 clang/lib/Basic/Targets.cpp               |  3 -
 clang/lib/Basic/Targets/OSTargets.h       | 15 ----
 clang/lib/Basic/Targets/X86.h             | 37 ----------
 clang/lib/Driver/CMakeLists.txt           |  1 -
 clang/lib/Driver/Driver.cpp               |  4 --
 clang/lib/Driver/ToolChains/UEFI.cpp      | 88 -----------------------
 clang/lib/Driver/ToolChains/UEFI.h        | 59 ---------------
 clang/test/CodeGen/X86/uefi-data-layout.c |  3 -
 clang/test/Driver/uefi-constructed-args.c | 13 ----
 clang/unittests/Driver/ToolChainTest.cpp  | 21 ------
 10 files changed, 244 deletions(-)
 delete mode 100644 clang/lib/Driver/ToolChains/UEFI.cpp
 delete mode 100644 clang/lib/Driver/ToolChains/UEFI.h
 delete mode 100644 clang/test/CodeGen/X86/uefi-data-layout.c
 delete mode 100644 clang/test/Driver/uefi-constructed-args.c

diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index 4917ef015941be..0b8e565345b6a4 100644
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/lib/Basic/Targets.cpp
@@ -613,9 +613,6 @@ std::unique_ptr<TargetInfo> AllocateTarget(const llvm::Triple &Triple,
     case llvm::Triple::Solaris:
       return std::make_unique<SolarisTargetInfo<X86_64TargetInfo>>(Triple,
                                                                    Opts);
-    case llvm::Triple::UEFI:
-      return std::make_unique<UEFIX86_64TargetInfo>(Triple, Opts);
-
     case llvm::Triple::Win32: {
       switch (Triple.getEnvironment()) {
       case llvm::Triple::Cygnus:
diff --git a/clang/lib/Basic/Targets/OSTargets.h b/clang/lib/Basic/Targets/OSTargets.h
index a83d6464e789d6..0a4f06967fff5a 100644
--- a/clang/lib/Basic/Targets/OSTargets.h
+++ b/clang/lib/Basic/Targets/OSTargets.h
@@ -778,21 +778,6 @@ class LLVM_LIBRARY_VISIBILITY ZOSTargetInfo : public OSTargetInfo<Target> {
   }
 };
 
-// UEFI target
-template <typename Target>
-class LLVM_LIBRARY_VISIBILITY UEFITargetInfo : public OSTargetInfo<Target> {
-protected:
-  void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple,
-                    MacroBuilder &Builder) const override {}
-
-public:
-  UEFITargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
-      : OSTargetInfo<Target>(Triple, Opts) {
-    this->WCharType = TargetInfo::UnsignedShort;
-    this->WIntType = TargetInfo::UnsignedShort;
-  }
-};
-
 void addWindowsDefines(const llvm::Triple &Triple, const LangOptions &Opts,
                        MacroBuilder &Builder);
 
diff --git a/clang/lib/Basic/Targets/X86.h b/clang/lib/Basic/Targets/X86.h
index a99ae62984c7d5..79fd5867cf6673 100644
--- a/clang/lib/Basic/Targets/X86.h
+++ b/clang/lib/Basic/Targets/X86.h
@@ -814,43 +814,6 @@ class LLVM_LIBRARY_VISIBILITY X86_64TargetInfo : public X86TargetInfo {
   }
 };
 
-// x86-64 UEFI target
-class LLVM_LIBRARY_VISIBILITY UEFIX86_64TargetInfo
-    : public UEFITargetInfo<X86_64TargetInfo> {
-public:
-  UEFIX86_64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
-      : UEFITargetInfo<X86_64TargetInfo>(Triple, Opts) {
-    this->TheCXXABI.set(TargetCXXABI::Microsoft);
-    this->MaxTLSAlign = 8192u * this->getCharWidth();
-    this->resetDataLayout("e-m:w-p270:32:32-p271:32:32-p272:64:64-"
-                          "i64:64-i128:128-f80:128-n8:16:32:64-S128");
-  }
-
-  void getTargetDefines(const LangOptions &Opts,
-                        MacroBuilder &Builder) const override {
-    getOSDefines(Opts, X86TargetInfo::getTriple(), Builder);
-  }
-
-  BuiltinVaListKind getBuiltinVaListKind() const override {
-    return TargetInfo::CharPtrBuiltinVaList;
-  }
-
-  CallingConvCheckResult checkCallingConvention(CallingConv CC) const override {
-    switch (CC) {
-    case CC_C:
-    case CC_Win64:
-      return CCCR_OK;
-    default:
-      return CCCR_Warning;
-    }
-  }
-
-  TargetInfo::CallingConvKind
-  getCallingConvKind(bool ClangABICompat4) const override {
-    return CCK_MicrosoftWin64;
-  }
-};
-
 // x86-64 Windows target
 class LLVM_LIBRARY_VISIBILITY WindowsX86_64TargetInfo
     : public WindowsTargetInfo<X86_64TargetInfo> {
diff --git a/clang/lib/Driver/CMakeLists.txt b/clang/lib/Driver/CMakeLists.txt
index 4fd10bf671512f..32a4378ab499fa 100644
--- a/clang/lib/Driver/CMakeLists.txt
+++ b/clang/lib/Driver/CMakeLists.txt
@@ -78,7 +78,6 @@ add_clang_library(clangDriver
   ToolChains/Solaris.cpp
   ToolChains/SPIRV.cpp
   ToolChains/TCE.cpp
-  ToolChains/UEFI.cpp
   ToolChains/VEToolchain.cpp
   ToolChains/WebAssembly.cpp
   ToolChains/XCore.cpp
diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index 95723b9209d125..efe398dd531da7 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -45,7 +45,6 @@
 #include "ToolChains/SPIRV.h"
 #include "ToolChains/Solaris.h"
 #include "ToolChains/TCE.h"
-#include "ToolChains/UEFI.h"
 #include "ToolChains/VEToolchain.h"
 #include "ToolChains/WebAssembly.h"
 #include "ToolChains/XCore.h"
@@ -6417,9 +6416,6 @@ const ToolChain &Driver::getToolChain(const ArgList &Args,
     case llvm::Triple::Mesa3D:
       TC = std::make_unique<toolchains::AMDGPUToolChain>(*this, Target, Args);
       break;
-    case llvm::Triple::UEFI:
-      TC = std::make_unique<toolchains::UEFI>(*this, Target, Args);
-      break;
     case llvm::Triple::Win32:
       switch (Target.getEnvironment()) {
       default:
diff --git a/clang/lib/Driver/ToolChains/UEFI.cpp b/clang/lib/Driver/ToolChains/UEFI.cpp
deleted file mode 100644
index 66cbbec59246c0..00000000000000
--- a/clang/lib/Driver/ToolChains/UEFI.cpp
+++ /dev/null
@@ -1,88 +0,0 @@
-//===--- UEFI.cpp - UEFI ToolChain Implementations -----------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#include "UEFI.h"
-#include "CommonArgs.h"
-#include "Darwin.h"
-#include "clang/Basic/CharInfo.h"
-#include "clang/Basic/Version.h"
-#include "clang/Config/config.h"
-#include "clang/Driver/Compilation.h"
-#include "clang/Driver/Driver.h"
-#include "clang/Driver/Options.h"
-#include "clang/Driver/SanitizerArgs.h"
-#include "llvm/ADT/StringExtras.h"
-#include "llvm/ADT/StringSwitch.h"
-#include "llvm/Option/Arg.h"
-#include "llvm/Option/ArgList.h"
-#include "llvm/Support/FileSystem.h"
-#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/VirtualFileSystem.h"
-#include "llvm/TargetParser/Host.h"
-
-using namespace clang::driver;
-using namespace clang::driver::toolchains;
-using namespace clang;
-using namespace llvm::opt;
-
-UEFI::UEFI(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
-    : ToolChain(D, Triple, Args) {}
-
-Tool *UEFI::buildLinker() const { return new tools::uefi::Linker(*this); }
-
-void tools::uefi::Linker::ConstructJob(Compilation &C, const JobAction &JA,
-                                       const InputInfo &Output,
-                                       const InputInfoList &Inputs,
-                                       const ArgList &Args,
-                                       const char *LinkingOutput) const {
-  ArgStringList CmdArgs;
-  auto &TC = static_cast<const toolchains::UEFI &>(getToolChain());
-
-  assert((Output.isFilename() || Output.isNothing()) && "invalid output");
-  if (Output.isFilename())
-    CmdArgs.push_back(
-        Args.MakeArgString(std::string("-out:") + Output.getFilename()));
-
-  CmdArgs.push_back("-nologo");
-
-  // TODO: Other UEFI binary subsystems that are currently unsupported:
-  // efi_boot_service_driver, efi_rom, efi_runtime_driver.
-  CmdArgs.push_back("-subsystem:efi_application");
-
-  // Default entry function name according to the TianoCore reference
-  // implementation is EfiMain.
-  // TODO: Provide a flag to override the entry function name.
-  CmdArgs.push_back("-entry:EfiMain");
-
-  // "Terminal Service Aware" flag is not needed for UEFI applications.
-  CmdArgs.push_back("-tsaware:no");
-
-  // EFI_APPLICATION to be linked as DLL by default.
-  CmdArgs.push_back("-dll");
-
-  if (Args.hasArg(options::OPT_g_Group, options::OPT__SLASH_Z7))
-    CmdArgs.push_back("-debug");
-
-  Args.AddAllArgValues(CmdArgs, options::OPT__SLASH_link);
-
-  AddLinkerInputs(TC, Inputs, Args, CmdArgs, JA);
-
-  // This should ideally be handled by ToolChain::GetLinkerPath but we need
-  // to special case some linker paths. In the case of lld, we need to
-  // translate 'lld' into 'lld-link'.
-  StringRef Linker =
-      Args.getLastArgValue(options::OPT_fuse_ld_EQ, CLANG_DEFAULT_LINKER);
-  if (Linker.empty() || Linker == "lld")
-    Linker = "lld-link";
-
-  auto LinkerPath = TC.GetProgramPath(Linker.str().c_str());
-  auto LinkCmd = std::make_unique<Command>(
-      JA, *this, ResponseFileSupport::AtFileUTF16(),
-      Args.MakeArgString(LinkerPath), CmdArgs, Inputs, Output);
-  C.addCommand(std::move(LinkCmd));
-}
diff --git a/clang/lib/Driver/ToolChains/UEFI.h b/clang/lib/Driver/ToolChains/UEFI.h
deleted file mode 100644
index a126ac32db6c6c..00000000000000
--- a/clang/lib/Driver/ToolChains/UEFI.h
+++ /dev/null
@@ -1,59 +0,0 @@
-//===--- UEFI.h - UEFI ToolChain Implementations ----------*- C++ -*-===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_UEFI_H
-#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_UEFI_H
-
-#include "clang/Driver/Tool.h"
-#include "clang/Driver/ToolChain.h"
-
-namespace clang::driver {
-namespace tools {
-namespace uefi {
-class LLVM_LIBRARY_VISIBILITY Linker : public Tool {
-public:
-  Linker(const ToolChain &TC) : Tool("uefi::Linker", "lld-link", TC) {}
-
-  bool hasIntegratedCPP() const override { return false; }
-  bool isLinkJob() const override { return true; }
-
-  void ConstructJob(Compilation &C, const JobAction &JA,
-                    const InputInfo &Output, const InputInfoList &Inputs,
-                    const llvm::opt::ArgList &TCArgs,
-                    const char *LinkingOutput) const override;
-};
-} // end namespace uefi
-} // end namespace tools
-
-namespace toolchains {
-
-class LLVM_LIBRARY_VISIBILITY UEFI : public ToolChain {
-public:
-  UEFI(const Driver &D, const llvm::Triple &Triple,
-       const llvm::opt::ArgList &Args);
-
-protected:
-  Tool *buildLinker() const override;
-
-public:
-  bool HasNativeLLVMSupport() const override { return true; }
-  UnwindTableLevel
-  getDefaultUnwindTableLevel(const llvm::opt::ArgList &Args) const override {
-    return UnwindTableLevel::Asynchronous;
-  }
-  bool isPICDefault() const override { return true; }
-  bool isPIEDefault(const llvm::opt::ArgList &Args) const override {
-    return false;
-  }
-  bool isPICDefaultForced() const override { return true; }
-};
-
-} // namespace toolchains
-} // namespace clang::driver
-
-#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_UEFI_H
diff --git a/clang/test/CodeGen/X86/uefi-data-layout.c b/clang/test/CodeGen/X86/uefi-data-layout.c
deleted file mode 100644
index 3e6908dd038b65..00000000000000
--- a/clang/test/CodeGen/X86/uefi-data-layout.c
+++ /dev/null
@@ -1,3 +0,0 @@
-// RUN: %clang -target x86_64-unknown-uefi -S -emit-llvm -o - %s | \
-// RUN:     FileCheck --check-prefix=X86_64_UEFI %s
-// X86_64_UEFI: target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
diff --git a/clang/test/Driver/uefi-constructed-args.c b/clang/test/Driver/uefi-constructed-args.c
deleted file mode 100644
index bf0a9f4fbeb293..00000000000000
--- a/clang/test/Driver/uefi-constructed-args.c
+++ /dev/null
@@ -1,13 +0,0 @@
-// RUN: %clang_cl -### %s --target=x86_64-unknown-uefi \
-// RUN:     --sysroot=%S/platform -fuse-ld=lld -g 2>&1 \
-// RUN:     | FileCheck -check-prefixes=CHECK %s
-// CHECK: "-cc1"
-// CHECK-SAME: "-triple" "x86_64-unknown-uefi"
-// CHECK-SAME: "-mrelocation-model" "pic" "-pic-level" "2"
-// CHECK-SAME: "-mframe-pointer=all"
-// CHECK-NEXT: "-nologo"
-// CHECK-SAME: "-subsystem:efi_application"
-// CHECK-SAME: "-entry:EfiMain"
-// CHECK-SAME: "-tsaware:no"
-// CHECK-SAME: "-dll"
-// CHECK-SAME: "-debug"
diff --git a/clang/unittests/Driver/ToolChainTest.cpp b/clang/unittests/Driver/ToolChainTest.cpp
index 672742cea5d6ba..6c8b32dec879d1 100644
--- a/clang/unittests/Driver/ToolChainTest.cpp
+++ b/clang/unittests/Driver/ToolChainTest.cpp
@@ -14,7 +14,6 @@
 #include "clang/Basic/DiagnosticIDs.h"
 #include "clang/Basic/DiagnosticOptions.h"
 #include "clang/Basic/LLVM.h"
-#include "clang/Basic/TargetInfo.h"
 #include "clang/Basic/TargetOptions.h"
 #include "clang/Driver/Compilation.h"
 #include "clang/Driver/Driver.h"
@@ -575,26 +574,6 @@ TEST(CompilerInvocation, SplitSwarfSingleCrash) {
   EXPECT_TRUE(CI); // no-crash
 }
 
-TEST(ToolChainTest, UEFICallingConventionTest) {
-  clang::CompilerInstance compiler;
-  compiler.createDiagnostics();
-
-  std::string TrStr = "x86_64-unknown-uefi";
-  llvm::Triple Tr(TrStr);
-  Tr.setOS(llvm::Triple::OSType::UEFI);
-  Tr.setVendor(llvm::Triple::VendorType::UnknownVendor);
-  Tr.setEnvironment(llvm::Triple::EnvironmentType::UnknownEnvironment);
-  Tr.setArch(llvm::Triple::ArchType::x86_64);
-
-  compiler.getTargetOpts().Triple = Tr.getTriple();
-  compiler.setTarget(clang::TargetInfo::CreateTargetInfo(
-      compiler.getDiagnostics(),
-      std::make_shared<clang::TargetOptions>(compiler.getTargetOpts())));
-
-  EXPECT_EQ(compiler.getTarget().getCallingConvKind(true),
-            TargetInfo::CallingConvKind::CCK_MicrosoftWin64);
-}
-
 TEST(GetDriverMode, PrefersLastDriverMode) {
   static constexpr const char *Args[] = {"clang-cl", "--driver-mode=foo",
                                          "--driver-mode=bar", "foo.cpp"};



More information about the cfe-commits mailing list