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[Clang] Add timeout for GPU detection utilities #94751

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merged 1 commit into from
Jun 7, 2024
Merged

[Clang] Add timeout for GPU detection utilities #94751

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3 changes: 2 additions & 1 deletion clang/include/clang/Driver/ToolChain.h
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Original file line number Diff line number Diff line change
Expand Up @@ -205,7 +205,8 @@ class ToolChain {

/// Executes the given \p Executable and returns the stdout.
llvm::Expected<std::unique_ptr<llvm::MemoryBuffer>>
executeToolChainProgram(StringRef Executable) const;
executeToolChainProgram(StringRef Executable,
unsigned SecondsToWait = 0) const;

void setTripleEnvironment(llvm::Triple::EnvironmentType Env);

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8 changes: 4 additions & 4 deletions clang/lib/Driver/ToolChain.cpp
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Expand Up @@ -104,7 +104,8 @@ ToolChain::ToolChain(const Driver &D, const llvm::Triple &T,
}

llvm::Expected<std::unique_ptr<llvm::MemoryBuffer>>
ToolChain::executeToolChainProgram(StringRef Executable) const {
ToolChain::executeToolChainProgram(StringRef Executable,
unsigned SecondsToWait) const {
llvm::SmallString<64> OutputFile;
llvm::sys::fs::createTemporaryFile("toolchain-program", "txt", OutputFile);
llvm::FileRemover OutputRemover(OutputFile.c_str());
Expand All @@ -115,9 +116,8 @@ ToolChain::executeToolChainProgram(StringRef Executable) const {
};

std::string ErrorMessage;
if (llvm::sys::ExecuteAndWait(Executable, {}, {}, Redirects,
/* SecondsToWait */ 0,
/*MemoryLimit*/ 0, &ErrorMessage))
if (llvm::sys::ExecuteAndWait(Executable, {}, {}, Redirects, SecondsToWait,
/*MemoryLimit=*/0, &ErrorMessage))
return llvm::createStringError(std::error_code(),
Executable + ": " + ErrorMessage);

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2 changes: 1 addition & 1 deletion clang/lib/Driver/ToolChains/AMDGPU.cpp
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Expand Up @@ -877,7 +877,7 @@ AMDGPUToolChain::getSystemGPUArchs(const ArgList &Args) const {
else
Program = GetProgramPath("amdgpu-arch");

auto StdoutOrErr = executeToolChainProgram(Program);
auto StdoutOrErr = executeToolChainProgram(Program, /*SecondsToWait=*/10);
if (!StdoutOrErr)
return StdoutOrErr.takeError();

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2 changes: 1 addition & 1 deletion clang/lib/Driver/ToolChains/Cuda.cpp
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Expand Up @@ -826,7 +826,7 @@ NVPTXToolChain::getSystemGPUArchs(const ArgList &Args) const {
else
Program = GetProgramPath("nvptx-arch");

auto StdoutOrErr = executeToolChainProgram(Program);
auto StdoutOrErr = executeToolChainProgram(Program, /*SecondsToWait=*/10);
if (!StdoutOrErr)
return StdoutOrErr.takeError();

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