|
150
|
1 //===--- NoAssemblerCheck.cpp - clang-tidy---------------------------------===//
|
|
|
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 #include "NoAssemblerCheck.h"
|
|
|
10 #include "clang/AST/ASTContext.h"
|
|
|
11 #include "clang/ASTMatchers/ASTMatchFinder.h"
|
|
|
12
|
|
|
13 using namespace clang::ast_matchers;
|
|
|
14
|
|
252
|
15 namespace clang::tidy::hicpp {
|
|
150
|
16
|
|
|
17 namespace {
|
|
|
18 AST_MATCHER(VarDecl, isAsm) { return Node.hasAttr<clang::AsmLabelAttr>(); }
|
|
|
19 const ast_matchers::internal::VariadicDynCastAllOfMatcher<Decl,
|
|
|
20 FileScopeAsmDecl>
|
|
|
21 fileScopeAsmDecl;
|
|
|
22 } // namespace
|
|
|
23
|
|
|
24 void NoAssemblerCheck::registerMatchers(MatchFinder *Finder) {
|
|
|
25 Finder->addMatcher(asmStmt().bind("asm-stmt"), this);
|
|
|
26 Finder->addMatcher(fileScopeAsmDecl().bind("asm-file-scope"), this);
|
|
|
27 Finder->addMatcher(varDecl(isAsm()).bind("asm-var"), this);
|
|
|
28 }
|
|
|
29
|
|
|
30 void NoAssemblerCheck::check(const MatchFinder::MatchResult &Result) {
|
|
|
31 SourceLocation ASMLocation;
|
|
|
32 if (const auto *ASM = Result.Nodes.getNodeAs<AsmStmt>("asm-stmt"))
|
|
|
33 ASMLocation = ASM->getAsmLoc();
|
|
|
34 else if (const auto *ASM =
|
|
|
35 Result.Nodes.getNodeAs<FileScopeAsmDecl>("asm-file-scope"))
|
|
|
36 ASMLocation = ASM->getAsmLoc();
|
|
|
37 else if (const auto *ASM = Result.Nodes.getNodeAs<VarDecl>("asm-var"))
|
|
|
38 ASMLocation = ASM->getLocation();
|
|
|
39 else
|
|
|
40 llvm_unreachable("Unhandled case in matcher.");
|
|
|
41
|
|
|
42 diag(ASMLocation, "do not use inline assembler in safety-critical code");
|
|
|
43 }
|
|
|
44
|
|
252
|
45 } // namespace clang::tidy::hicpp
|
