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170b9caf33
1. interrupt/signal handlers can not have parameters 2. interrupt/signal handlers must be 'void' type
74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
//===------ SemaAVR.cpp ---------- AVR target-specific routines -----------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements semantic analysis functions specific to AVR.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Sema/SemaAVR.h"
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#include "clang/AST/DeclBase.h"
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#include "clang/Basic/DiagnosticSema.h"
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#include "clang/Sema/Attr.h"
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#include "clang/Sema/ParsedAttr.h"
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#include "clang/Sema/Sema.h"
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namespace clang {
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SemaAVR::SemaAVR(Sema &S) : SemaBase(S) {}
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void SemaAVR::handleInterruptAttr(Decl *D, const ParsedAttr &AL) {
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if (!isFuncOrMethodForAttrSubject(D)) {
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Diag(D->getLocation(), diag::warn_attribute_wrong_decl_type)
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<< AL << AL.isRegularKeywordAttribute() << ExpectedFunction;
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return;
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}
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if (!AL.checkExactlyNumArgs(SemaRef, 0))
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return;
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// AVR interrupt handlers must have no parameter and be void type.
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if (hasFunctionProto(D) && getFunctionOrMethodNumParams(D) != 0) {
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Diag(D->getLocation(), diag::warn_interrupt_signal_attribute_invalid)
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<< /*AVR*/ 3 << /*interrupt*/ 0 << 0;
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return;
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}
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if (!getFunctionOrMethodResultType(D)->isVoidType()) {
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Diag(D->getLocation(), diag::warn_interrupt_signal_attribute_invalid)
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<< /*AVR*/ 3 << /*interrupt*/ 0 << 1;
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return;
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}
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handleSimpleAttribute<AVRInterruptAttr>(*this, D, AL);
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}
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void SemaAVR::handleSignalAttr(Decl *D, const ParsedAttr &AL) {
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if (!isFuncOrMethodForAttrSubject(D)) {
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Diag(D->getLocation(), diag::warn_attribute_wrong_decl_type)
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<< AL << AL.isRegularKeywordAttribute() << ExpectedFunction;
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return;
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}
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if (!AL.checkExactlyNumArgs(SemaRef, 0))
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return;
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// AVR signal handlers must have no parameter and be void type.
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if (hasFunctionProto(D) && getFunctionOrMethodNumParams(D) != 0) {
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Diag(D->getLocation(), diag::warn_interrupt_signal_attribute_invalid)
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<< /*AVR*/ 3 << /*signal*/ 1 << 0;
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return;
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}
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if (!getFunctionOrMethodResultType(D)->isVoidType()) {
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Diag(D->getLocation(), diag::warn_interrupt_signal_attribute_invalid)
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<< /*AVR*/ 3 << /*signal*/ 1 << 1;
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return;
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}
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handleSimpleAttribute<AVRSignalAttr>(*this, D, AL);
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}
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} // namespace clang
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