1 //===-- RISCVAttributeParser.cpp - RISCV Attribute Parser -----------------===// 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 "llvm/Support/RISCVAttributeParser.h" 10 #include "llvm/ADT/StringExtras.h" 11 12 using namespace llvm; 13 14 const RISCVAttributeParser::DisplayHandler 15 RISCVAttributeParser::displayRoutines[] = { 16 { 17 RISCVAttrs::ARCH, 18 &ELFAttributeParser::stringAttribute, 19 }, 20 { 21 RISCVAttrs::PRIV_SPEC, 22 &ELFAttributeParser::integerAttribute, 23 }, 24 { 25 RISCVAttrs::PRIV_SPEC_MINOR, 26 &ELFAttributeParser::integerAttribute, 27 }, 28 { 29 RISCVAttrs::PRIV_SPEC_REVISION, 30 &ELFAttributeParser::integerAttribute, 31 }, 32 { 33 RISCVAttrs::STACK_ALIGN, 34 &RISCVAttributeParser::stackAlign, 35 }, 36 { 37 RISCVAttrs::UNALIGNED_ACCESS, 38 &RISCVAttributeParser::unalignedAccess, 39 }}; 40 41 Error RISCVAttributeParser::unalignedAccess(unsigned tag) { 42 static const char *strings[] = {"No unaligned access", "Unaligned access"}; 43 return parseStringAttribute("Unaligned_access", tag, makeArrayRef(strings)); 44 } 45 46 Error RISCVAttributeParser::stackAlign(unsigned tag) { 47 uint64_t value = de.getULEB128(cursor); 48 std::string description = 49 "Stack alignment is " + utostr(value) + std::string("-bytes"); 50 printAttribute(tag, value, description); 51 return Error::success(); 52 } 53 54 Error RISCVAttributeParser::handler(uint64_t tag, bool &handled) { 55 handled = false; 56 for (unsigned AHI = 0, AHE = array_lengthof(displayRoutines); AHI != AHE; 57 ++AHI) { 58 if (uint64_t(displayRoutines[AHI].attribute) == tag) { 59 if (Error e = (this->*displayRoutines[AHI].routine)(tag)) 60 return e; 61 handled = true; 62 break; 63 } 64 } 65 66 return Error::success(); 67 } 68