clang 10.0.0git

BPF.cpp
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1 //===--- BPF.cpp - Implement BPF target feature support -------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file implements BPF TargetInfo objects.
10 //
11 //===----------------------------------------------------------------------===//
12
13 #include "BPF.h"
14 #include "Targets.h"
15 #include "clang/Basic/MacroBuilder.h"
16 #include "clang/Basic/TargetBuiltins.h"
17 #include "llvm/ADT/StringRef.h"
18
19 using namespace clang;
20 using namespace clang::targets;
21
22 const Builtin::Info BPFTargetInfo::BuiltinInfo[] = {
23 #define BUILTIN(ID, TYPE, ATTRS) \
24 {#ID, TYPE, ATTRS, nullptr, ALL_LANGUAGES, nullptr},
25 #include "clang/Basic/BuiltinsBPF.def"
26 };
27
28 void BPFTargetInfo::getTargetDefines(const LangOptions &Opts,
29 MacroBuilder &Builder) const {
30 Builder.defineMacro("__bpf__");
31 Builder.defineMacro("__BPF__");
32 }
33
34 static constexpr llvm::StringLiteral ValidCPUNames[] = {"generic", "v1", "v2",
35 "v3", "probe"};
36
37 bool BPFTargetInfo::isValidCPUName(StringRef Name) const {
38 return llvm::find(ValidCPUNames, Name) != std::end(ValidCPUNames);
39 }
40
41 void BPFTargetInfo::fillValidCPUList(SmallVectorImpl<StringRef> &Values) const {
42 Values.append(std::begin(ValidCPUNames), std::end(ValidCPUNames));
43 }
44
45 ArrayRef<Builtin::Info> BPFTargetInfo::getTargetBuiltins() const {
46 return llvm::makeArrayRef(BuiltinInfo, clang::BPF::LastTSBuiltin -
47 Builtin::FirstTSBuiltin);
48 }
MacroBuilder.h
Defines the clang::MacroBuilder utility class.
clang::targets
Definition: AArch64.h:21
clang::targets::BPFTargetInfo::fillValidCPUList
void fillValidCPUList(SmallVectorImpl< StringRef > &Values) const override
Fill a SmallVectorImpl with the valid values to setCPU.
Definition: BPF.cpp:41
clang::Builtin::Info
Definition: Builtins.h:53
clang::LangOptions
Keeps track of the various options that can be enabled, which controls the dialect of C or C++ that i...
Definition: LangOptions.h:53
llvm::SmallVectorImpl
Definition: LLVM.h:36
BPF.h
ValidCPUNames
static constexpr llvm::StringLiteral ValidCPUNames[]
Definition: BPF.cpp:34
clang::BPF::LastTSBuiltin
Definition: TargetBuiltins.h:61
llvm::ArrayRef
Definition: LLVM.h:31
TargetBuiltins.h
Enumerates target-specific builtins in their own namespaces within namespace clang.
clang::targets::BPFTargetInfo::isValidCPUName
bool isValidCPUName(StringRef Name) const override
brief Determine whether this TargetInfo supports the given CPU name.
Definition: BPF.cpp:37
Targets.h
clang::targets::BPFTargetInfo::getTargetDefines
void getTargetDefines(const LangOptions &Opts, MacroBuilder &Builder) const override
===-— Other target property query methods --------------------——===//
Definition: BPF.cpp:28
clang
Dataflow Directional Tag Classes.
Definition: CFGReachabilityAnalysis.h:21
clang::targets::BPFTargetInfo::getTargetBuiltins
ArrayRef< Builtin::Info > getTargetBuiltins() const override
Return information about target-specific builtins for the current primary target, and info about whic...
Definition: BPF.cpp:45
clang::Builtin::FirstTSBuiltin
Definition: Builtins.h:50
clang::MacroBuilder
Definition: MacroBuilder.h:23
clang::MacroBuilder::defineMacro
void defineMacro(const Twine &Name, const Twine &Value="1")
Append a #define line for macro of the form "\#define Name Value\n".
Definition: MacroBuilder.h:29