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1 //===-- RISCVAttributeParser.cpp - RISCV Attribute Parser -----------------===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8
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9 #include "llvm/Support/RISCVAttributeParser.h"
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10 #include "llvm/ADT/StringExtras.h"
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11
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12 using namespace llvm;
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13
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14 const RISCVAttributeParser::DisplayHandler
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15 RISCVAttributeParser::displayRoutines[] = {
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16 {
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17 RISCVAttrs::ARCH,
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18 &ELFAttributeParser::stringAttribute,
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19 },
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20 {
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21 RISCVAttrs::PRIV_SPEC,
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22 &ELFAttributeParser::integerAttribute,
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23 },
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24 {
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25 RISCVAttrs::PRIV_SPEC_MINOR,
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26 &ELFAttributeParser::integerAttribute,
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27 },
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28 {
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29 RISCVAttrs::PRIV_SPEC_REVISION,
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30 &ELFAttributeParser::integerAttribute,
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31 },
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32 {
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33 RISCVAttrs::STACK_ALIGN,
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34 &RISCVAttributeParser::stackAlign,
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35 },
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36 {
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37 RISCVAttrs::UNALIGNED_ACCESS,
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38 &RISCVAttributeParser::unalignedAccess,
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39 }};
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40
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41 Error RISCVAttributeParser::unalignedAccess(unsigned tag) {
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42 static const char *strings[] = {"No unaligned access", "Unaligned access"};
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43 return parseStringAttribute("Unaligned_access", tag, makeArrayRef(strings));
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44 }
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45
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46 Error RISCVAttributeParser::stackAlign(unsigned tag) {
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47 uint64_t value = de.getULEB128(cursor);
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48 std::string description =
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49 "Stack alignment is " + utostr(value) + std::string("-bytes");
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50 printAttribute(tag, value, description);
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51 return Error::success();
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52 }
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53
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54 Error RISCVAttributeParser::handler(uint64_t tag, bool &handled) {
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55 handled = false;
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56 for (unsigned AHI = 0, AHE = array_lengthof(displayRoutines); AHI != AHE;
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57 ++AHI) {
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58 if (uint64_t(displayRoutines[AHI].attribute) == tag) {
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59 if (Error e = (this->*displayRoutines[AHI].routine)(tag))
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60 return e;
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61 handled = true;
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62 break;
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63 }
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64 }
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65
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66 return Error::success();
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67 }
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