66aa46da6c
This reapplies #152650 with a build fix for clang-11 (need explicit template parameters for ArrayRef construction) and avoiding the default-in-a-switch-covering-enum warning. It also adds two new tests. The original commit message was: The trickiest part here is that the FREs have a variable size, in two (or three?) dimensions: - the size of the StartAddress field. This determined by the FDE they are in, so it is uniform across all FREs in one FDE. - the number and sizes of offsets following the FRE. This can be different for each FRE. While vending this information through a template API would be possible, I believe such an approach would be very unwieldy, and it would still require a sequential scan through the FRE list. This is why I'm implementing this by reading the data into a common data structure using the fallible iterator pattern. For more information about the SFrame unwind format, see the [specification](https://sourceware.org/binutils/wiki/sframe) and the related [RFC](https://discourse.llvm.org/t/rfc-adding-sframe-support-to-llvm/86900).
79 lines
2.7 KiB
C++
79 lines
2.7 KiB
C++
//===-- SFrame.cpp -----------------------------------------------*- C++-*-===//
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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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#include "llvm/BinaryFormat/SFrame.h"
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#include "llvm/Support/ScopedPrinter.h"
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using namespace llvm;
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ArrayRef<EnumEntry<sframe::Version>> sframe::getVersions() {
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static constexpr EnumEntry<Version> Versions[] = {
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#define HANDLE_SFRAME_VERSION(CODE, NAME) {#NAME, sframe::Version::NAME},
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#include "llvm/BinaryFormat/SFrameConstants.def"
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};
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return ArrayRef(Versions);
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}
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ArrayRef<EnumEntry<sframe::Flags>> sframe::getFlags() {
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static constexpr EnumEntry<sframe::Flags> Flags[] = {
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#define HANDLE_SFRAME_FLAG(CODE, NAME) {#NAME, sframe::Flags::NAME},
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#include "llvm/BinaryFormat/SFrameConstants.def"
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};
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return ArrayRef(Flags);
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}
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ArrayRef<EnumEntry<sframe::ABI>> sframe::getABIs() {
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static constexpr EnumEntry<sframe::ABI> ABIs[] = {
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#define HANDLE_SFRAME_ABI(CODE, NAME) {#NAME, sframe::ABI::NAME},
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#include "llvm/BinaryFormat/SFrameConstants.def"
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};
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return ArrayRef(ABIs);
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}
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ArrayRef<EnumEntry<sframe::FREType>> sframe::getFRETypes() {
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static constexpr EnumEntry<sframe::FREType> FRETypes[] = {
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#define HANDLE_SFRAME_FRE_TYPE(CODE, NAME) {#NAME, sframe::FREType::NAME},
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#include "llvm/BinaryFormat/SFrameConstants.def"
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};
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return ArrayRef(FRETypes);
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}
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ArrayRef<EnumEntry<sframe::FDEType>> sframe::getFDETypes() {
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static constexpr EnumEntry<sframe::FDEType> FDETypes[] = {
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#define HANDLE_SFRAME_FDE_TYPE(CODE, NAME) {#NAME, sframe::FDEType::NAME},
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#include "llvm/BinaryFormat/SFrameConstants.def"
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};
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return ArrayRef(FDETypes);
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}
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ArrayRef<EnumEntry<sframe::AArch64PAuthKey>> sframe::getAArch64PAuthKeys() {
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static constexpr EnumEntry<sframe::AArch64PAuthKey> AArch64PAuthKeys[] = {
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#define HANDLE_SFRAME_AARCH64_PAUTH_KEY(CODE, NAME) \
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{#NAME, sframe::AArch64PAuthKey::NAME},
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#include "llvm/BinaryFormat/SFrameConstants.def"
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};
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return ArrayRef(AArch64PAuthKeys);
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}
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ArrayRef<EnumEntry<sframe::FREOffset>> sframe::getFREOffsets() {
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static constexpr EnumEntry<sframe::FREOffset> FREOffsets[] = {
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#define HANDLE_SFRAME_FRE_OFFSET(CODE, NAME) {#NAME, sframe::FREOffset::NAME},
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#include "llvm/BinaryFormat/SFrameConstants.def"
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};
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return ArrayRef(FREOffsets);
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}
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ArrayRef<EnumEntry<sframe::BaseReg>> sframe::getBaseRegisters() {
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static constexpr EnumEntry<sframe::BaseReg> BaseRegs[] = {
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{"FP", sframe::BaseReg::FP},
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{"SP", sframe::BaseReg::SP},
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};
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return ArrayRef(BaseRegs);
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}
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