[clang] [clang] fix uefi target for aarch64 & x86_64 (PR #120632)
Tristan Ross via cfe-commits
cfe-commits at lists.llvm.org
Fri Mar 14 20:22:24 PDT 2025
https://github.com/RossComputerGuy updated https://github.com/llvm/llvm-project/pull/120632
>From e0d525f801f65588aa6b22a2827036a4c2d9c91c Mon Sep 17 00:00:00 2001
From: Tristan Ross <tristan.ross at midstall.com>
Date: Thu, 19 Dec 2024 10:54:58 -0800
Subject: [PATCH 1/4] [clang] fix uefi data layout on x86 & aarch64
---
clang/lib/Basic/Targets/AArch64.cpp | 3 +++
clang/lib/Basic/Targets/X86.h | 4 ++--
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/clang/lib/Basic/Targets/AArch64.cpp b/clang/lib/Basic/Targets/AArch64.cpp
index 3633bab6e0df9..56fb1c42e3883 100644
--- a/clang/lib/Basic/Targets/AArch64.cpp
+++ b/clang/lib/Basic/Targets/AArch64.cpp
@@ -1626,6 +1626,9 @@ void AArch64leTargetInfo::setDataLayout() {
resetDataLayout("e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-"
"n32:64-S128-Fn32",
"_");
+ } else if (getTriple().isUEFI() && getTriple().isOSBinFormatCOFF()) {
+ resetDataLayout("e-m:w-p270:32:32-p271:32:32-p272:64:64-p:64:64-i32:32-"
+ "i64:64-i128:128-n32:64-S128-Fn32");
} else
resetDataLayout("e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-"
"i64:64-i128:128-n32:64-S128-Fn32");
diff --git a/clang/lib/Basic/Targets/X86.h b/clang/lib/Basic/Targets/X86.h
index 205edcab9ccb3..e3a56f2c9f56f 100644
--- a/clang/lib/Basic/Targets/X86.h
+++ b/clang/lib/Basic/Targets/X86.h
@@ -722,8 +722,8 @@ class LLVM_LIBRARY_VISIBILITY X86_64TargetInfo : public X86TargetInfo {
X86_64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
: X86TargetInfo(Triple, Opts) {
const bool IsX32 = getTriple().isX32();
- bool IsWinCOFF =
- getTriple().isOSWindows() && getTriple().isOSBinFormatCOFF();
+ bool IsWinCOFF = (getTriple().isOSWindows() || getTriple().isUEFI()) &&
+ getTriple().isOSBinFormatCOFF();
LongWidth = LongAlign = PointerWidth = PointerAlign = IsX32 ? 32 : 64;
LongDoubleWidth = 128;
LongDoubleAlign = 128;
>From 6d242b0e4d095f93b99ff927b4064a8b95d69fc5 Mon Sep 17 00:00:00 2001
From: Tristan Ross <tristan.ross at midstall.com>
Date: Thu, 19 Dec 2024 13:40:50 -0800
Subject: [PATCH 2/4] [clang] add __uefi__ test for aarch64 & x86_64
---
clang/test/Preprocessor/init.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/clang/test/Preprocessor/init.c b/clang/test/Preprocessor/init.c
index 1ac325d444662..a61822683a805 100644
--- a/clang/test/Preprocessor/init.c
+++ b/clang/test/Preprocessor/init.c
@@ -2835,6 +2835,8 @@
// RISCV64-LINUX: #define unix 1
// RUN: %clang_cc1 -dM -triple=x86_64-uefi -E /dev/null | FileCheck -match-full-lines -check-prefix UEFI %s
+// RUN: %clang_cc1 -dM -triple=aarch64-unknown-uefi -E < /dev/null | FileCheck -match-full-lines -check-prefix UEFI %s
+// RUN: %clang_cc1 -dM -triple=x86_64-unknown-uefi -E /dev/null | FileCheck -match-full-lines -check-prefix UEFI %s
// UEFI: #define __UEFI__ 1
>From dfcd456a4a64f6fd87f2ab3b2d2b744882151761 Mon Sep 17 00:00:00 2001
From: Tristan Ross <tristan.ross at midstall.com>
Date: Thu, 19 Dec 2024 13:52:26 -0800
Subject: [PATCH 3/4] [clang] add uefi to target os macros
---
clang/include/clang/Basic/TargetOSMacros.def | 3 +++
1 file changed, 3 insertions(+)
diff --git a/clang/include/clang/Basic/TargetOSMacros.def b/clang/include/clang/Basic/TargetOSMacros.def
index 58dce330f9c8f..f4f3276ad1c25 100644
--- a/clang/include/clang/Basic/TargetOSMacros.def
+++ b/clang/include/clang/Basic/TargetOSMacros.def
@@ -53,4 +53,7 @@ TARGET_OS(TARGET_OS_NANO, Triple.isWatchOS())
TARGET_OS(TARGET_IPHONE_SIMULATOR, Triple.isSimulatorEnvironment())
TARGET_OS(TARGET_OS_UIKITFORMAC, Triple.isMacCatalystEnvironment())
+// UEFI target.
+TARGET_OS(TARGET_OS_UEFI, Triple.isUEFI())
+
#undef TARGET_OS
>From 3177fc84a83730850d86083373056b3efd4bc2b1 Mon Sep 17 00:00:00 2001
From: Tristan Ross <tristan.ross at midstall.com>
Date: Thu, 19 Dec 2024 14:13:09 -0800
Subject: [PATCH 4/4] [clang] use mixin for aarch64 and x86_64 uefi
---
clang/lib/Basic/Targets.cpp | 6 +++++-
clang/lib/Basic/Targets/OSTargets.h | 13 +++++++++++-
clang/lib/Basic/Targets/X86.h | 32 -----------------------------
3 files changed, 17 insertions(+), 34 deletions(-)
diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index c6d228fe98100..fcc253fc8cbcb 100644
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/lib/Basic/Targets.cpp
@@ -170,6 +170,10 @@ std::unique_ptr<TargetInfo> AllocateTarget(const llvm::Triple &Triple,
case llvm::Triple::OpenBSD:
return std::make_unique<OpenBSDTargetInfo<AArch64leTargetInfo>>(Triple,
Opts);
+ case llvm::Triple::UEFI:
+ return std::make_unique<UEFITargetInfo<AArch64leTargetInfo>>(Triple,
+ Opts);
+
case llvm::Triple::Win32:
switch (Triple.getEnvironment()) {
case llvm::Triple::GNU:
@@ -631,7 +635,7 @@ std::unique_ptr<TargetInfo> AllocateTarget(const llvm::Triple &Triple,
return std::make_unique<SolarisTargetInfo<X86_64TargetInfo>>(Triple,
Opts);
case llvm::Triple::UEFI:
- return std::make_unique<UEFIX86_64TargetInfo>(Triple, Opts);
+ return std::make_unique<UEFITargetInfo<X86_64TargetInfo>>(Triple, Opts);
case llvm::Triple::Win32: {
switch (Triple.getEnvironment()) {
diff --git a/clang/lib/Basic/Targets/OSTargets.h b/clang/lib/Basic/Targets/OSTargets.h
index a88c851797aab..133f1ef5dc3c9 100644
--- a/clang/lib/Basic/Targets/OSTargets.h
+++ b/clang/lib/Basic/Targets/OSTargets.h
@@ -13,6 +13,7 @@
#define LLVM_CLANG_LIB_BASIC_TARGETS_OSTARGETS_H
#include "Targets.h"
+#include "clang/Basic/TargetInfo.h"
namespace clang {
namespace targets {
@@ -806,6 +807,8 @@ class LLVM_LIBRARY_VISIBILITY ZOSTargetInfo : public OSTargetInfo<Target> {
// UEFI target
template <typename Target>
class LLVM_LIBRARY_VISIBILITY UEFITargetInfo : public OSTargetInfo<Target> {
+ llvm::Triple Triple;
+
protected:
void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple,
MacroBuilder &Builder) const override {
@@ -814,11 +817,19 @@ class LLVM_LIBRARY_VISIBILITY UEFITargetInfo : public OSTargetInfo<Target> {
public:
UEFITargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
- : OSTargetInfo<Target>(Triple, Opts) {
+ : OSTargetInfo<Target>(Triple, Opts), Triple(Triple) {
this->WCharType = TargetInfo::UnsignedShort;
this->WIntType = TargetInfo::UnsignedShort;
this->UseMicrosoftManglingForC = true;
}
+
+ TargetInfo::CallingConvKind
+ getCallingConvKind(bool ClangABICompat4) const override {
+ if (Triple.getArch() == llvm::Triple::x86_64)
+ return TargetInfo::CallingConvKind::CCK_MicrosoftWin64;
+
+ return Target::getCallingConvKind(ClangABICompat4);
+ }
};
void addWindowsDefines(const llvm::Triple &Triple, const LangOptions &Opts,
diff --git a/clang/lib/Basic/Targets/X86.h b/clang/lib/Basic/Targets/X86.h
index e3a56f2c9f56f..47e6092f0ae2e 100644
--- a/clang/lib/Basic/Targets/X86.h
+++ b/clang/lib/Basic/Targets/X86.h
@@ -829,38 +829,6 @@ 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");
- }
-
- 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> {
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