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[clang] UEFI do not mangle main (#139179)

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Entry point functions such as main, wmain etc. should not be mangled for
UEFI targets.
This commit is contained in:
Prabhu Rajasekaran
2025-05-09 04:26:31 -07:00
committed by GitHub
parent 61a8da9367
commit ca6c6f1dfb
7 changed files with 15 additions and 1 deletions
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3
clang/lib/AST/Decl.cpp
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@@ -3350,7 +3350,8 @@ bool FunctionDecl::isMSVCRTEntryPoint() const {
// semantic analysis for these functions remains the same.
// MSVCRT entry points only exist on MSVCRT targets.
if (!TUnit->getASTContext().getTargetInfo().getTriple().isOSMSVCRT())
if (!TUnit->getASTContext().getTargetInfo().getTriple().isOSMSVCRT() &&
!TUnit->getASTContext().getTargetInfo().getTriple().isUEFI())
return false;
// Nameless functions like constructors cannot be entry points.

1
clang/test/CodeGenCXX/attr-x86-no_caller_saved_registers.cpp
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@@ -1,5 +1,6 @@
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu %s -emit-llvm -o - | FileCheck %s
// RUN: %clang_cc1 -triple x86_64-pc-win32 %s -emit-llvm -o - | FileCheck %s
// RUN: %clang_cc1 -triple x86_64-uefi %s -emit-llvm -o - | FileCheck %s
// CHECK: foo{{[^#]*}}#[[ATTRS:[0-9]+]]
__attribute__((no_caller_saved_registers)) void foo() {}

1
clang/test/CodeGenCXX/debug-info-codeview-unnamed.cpp
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@@ -1,5 +1,6 @@
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -debug-info-kind=limited -emit-llvm -std=c++11 -o - %s | FileCheck --check-prefix LINUX %s
// RUN: %clang_cc1 -triple x86_64-windows-msvc -debug-info-kind=limited -gcodeview -emit-llvm -std=c++11 -o - %s | FileCheck --check-prefix MSVC %s
// RUN: %clang_cc1 -triple x86_64-uefi -debug-info-kind=limited -gcodeview -emit-llvm -std=c++11 -o - %s | FileCheck --check-prefix MSVC %s
int main(int argc, char* argv[], char* arge[]) {
//

1
clang/test/CodeGenCXX/default_calling_conv.cpp
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@@ -6,6 +6,7 @@
// RUN: %clang_cc1 -triple i986-unknown-linux-gnu -fdefault-calling-conv=regcall -emit-llvm -o - %s | FileCheck %s --check-prefix=REGCALL --check-prefix=X86 --check-prefix=ALL
// RUN: %clang_cc1 -triple i686-pc-win32 -fdefault-calling-conv=vectorcall -emit-llvm -o - %s -DWINDOWS | FileCheck %s --check-prefix=WIN32
// RUN: %clang_cc1 -triple x86_64-windows-msvc -fdefault-calling-conv=vectorcall -emit-llvm -o - %s -DWINDOWS | FileCheck %s --check-prefix=WIN64
// RUN: %clang_cc1 -triple x86_64-uefi -fdefault-calling-conv=vectorcall -emit-llvm -o - %s -DWINDOWS | FileCheck %s --check-prefix=WIN64
// RUN: %clang_cc1 -triple i686-pc-win32 -emit-llvm -o - %s -DEXPLICITCC | FileCheck %s --check-prefix=EXPLICITCC
// RUN: %clang_cc1 -triple m68k-unknown-linux-gnu -mrtd -emit-llvm -o - %s | FileCheck %s --check-prefix=RTDCALL --check-prefix=ALL
// RUN: %clang_cc1 -triple m68k-unknown-linux-gnu -fdefault-calling-conv=rtdcall -emit-llvm -o - %s | FileCheck %s --check-prefix=RTDCALL --check-prefix=ALL

1
clang/test/CodeGenCXX/mangle-ms.cpp
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@@ -1,5 +1,6 @@
// RUN: %clang_cc1 -fblocks -emit-llvm %s -o - -triple=i386-pc-win32 -std=c++98 | FileCheck %s
// RUN: %clang_cc1 -fblocks -emit-llvm %s -o - -triple=x86_64-pc-win32 -std=c++98| FileCheck -check-prefix X64 %s
// RUN: %clang_cc1 -fblocks -emit-llvm %s -o - -triple=x86_64-uefi -std=c++98| FileCheck -check-prefix X64 %s
// RUN: %clang_cc1 -fblocks -emit-llvm %s -o - -triple=aarch64-pc-win32 -std=c++98 -DARM | FileCheck -check-prefixes=X64,ARM %s
int a;

8
clang/test/CodeGenSYCL/kernel-caller-entry-point.cpp
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@@ -14,6 +14,14 @@
// RUN: %clang_cc1 -fsycl-is-device -emit-llvm -aux-triple x86_64-pc-windows-msvc -triple spir64-unknown-unknown -std=c++17 %s -o - | FileCheck --check-prefixes=CHECK-DEVICE,CHECK-SPIR %s
// RUN: %clang_cc1 -fsycl-is-device -emit-llvm -aux-triple x86_64-pc-windows-msvc -triple spirv32-unknown-unknown -std=c++17 %s -o - | FileCheck --check-prefixes=CHECK-DEVICE,CHECK-SPIR %s
// RUN: %clang_cc1 -fsycl-is-device -emit-llvm -aux-triple x86_64-pc-windows-msvc -triple spirv64-unknown-unknown -std=c++17 %s -o - | FileCheck --check-prefixes=CHECK-DEVICE,CHECK-SPIR %s
// RUN: %clang_cc1 -fsycl-is-host -emit-llvm -triple x86_64-uefi -std=c++17 %s -o - | FileCheck --check-prefixes=CHECK-HOST,CHECK-HOST-WINDOWS %s
// RUN: %clang_cc1 -fsycl-is-device -emit-llvm -aux-triple x86_64-uefi -triple amdgcn-amd-amdhsa -std=c++17 %s -o - | FileCheck --check-prefixes=CHECK-DEVICE,CHECK-AMDGCN %s
// RUN: %clang_cc1 -fsycl-is-device -emit-llvm -aux-triple x86_64-uefi -triple nvptx-nvidia-cuda -std=c++17 %s -o - | FileCheck --check-prefixes=CHECK-DEVICE,CHECK-NVPTX %s
// RUN: %clang_cc1 -fsycl-is-device -emit-llvm -aux-triple x86_64-uefi -triple nvptx64-nvidia-cuda -std=c++17 %s -o - | FileCheck --check-prefixes=CHECK-DEVICE,CHECK-NVPTX %s
// RUN: %clang_cc1 -fsycl-is-device -emit-llvm -aux-triple x86_64-uefi -triple spir-unknown-unknown -std=c++17 %s -o - | FileCheck --check-prefixes=CHECK-DEVICE,CHECK-SPIR %s
// RUN: %clang_cc1 -fsycl-is-device -emit-llvm -aux-triple x86_64-uefi -triple spir64-unknown-unknown -std=c++17 %s -o - | FileCheck --check-prefixes=CHECK-DEVICE,CHECK-SPIR %s
// RUN: %clang_cc1 -fsycl-is-device -emit-llvm -aux-triple x86_64-uefi -triple spirv32-unknown-unknown -std=c++17 %s -o - | FileCheck --check-prefixes=CHECK-DEVICE,CHECK-SPIR %s
// RUN: %clang_cc1 -fsycl-is-device -emit-llvm -aux-triple x86_64-uefi -triple spirv64-unknown-unknown -std=c++17 %s -o - | FileCheck --check-prefixes=CHECK-DEVICE,CHECK-SPIR %s
// Test the generation of SYCL kernel caller functions. These functions are
// generated from functions declared with the sycl_kernel_entry_point attribute

1
clang/test/Sema/no-warn-missing-prototype.c
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@@ -1,6 +1,7 @@
// RUN: %clang_cc1 -fsyntax-only -Wmissing-prototypes -x c -ffreestanding -verify %s
// RUN: %clang_cc1 -fsyntax-only -Wmissing-prototypes -x c++ -ffreestanding -verify %s
// RUN: %clang_cc1 -fms-compatibility -fsyntax-only -Wmissing-prototypes -x c++ -ffreestanding -triple=x86_64-pc-win32 -verify -DMS %s
// RUN: %clang_cc1 -fms-compatibility -fsyntax-only -Wmissing-prototypes -x c++ -ffreestanding -triple=x86_64-uefi -verify -DMS %s
// expected-no-diagnostics
int main() {
return 0;