forked from OSchip/llvm-project
116 lines
3.1 KiB
C++
116 lines
3.1 KiB
C++
//===-- OptionGroupWatchpoint.cpp -----------------------------------------===//
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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 "lldb/Interpreter/OptionGroupWatchpoint.h"
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#include "lldb/Host/OptionParser.h"
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#include "lldb/Interpreter/OptionArgParser.h"
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#include "lldb/lldb-enumerations.h"
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using namespace lldb;
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using namespace lldb_private;
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static constexpr OptionEnumValueElement g_watch_type[] = {
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{
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OptionGroupWatchpoint::eWatchRead,
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"read",
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"Watch for read",
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},
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{
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OptionGroupWatchpoint::eWatchWrite,
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"write",
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"Watch for write",
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},
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{
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OptionGroupWatchpoint::eWatchReadWrite,
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"read_write",
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"Watch for read/write",
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},
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};
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static constexpr OptionEnumValueElement g_watch_size[] = {
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{
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1,
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"1",
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"Watch for byte size of 1",
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},
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{
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2,
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"2",
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"Watch for byte size of 2",
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},
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{
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4,
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"4",
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"Watch for byte size of 4",
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},
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{
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8,
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"8",
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"Watch for byte size of 8",
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},
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};
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static constexpr OptionDefinition g_option_table[] = {
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{LLDB_OPT_SET_1, false, "watch", 'w', OptionParser::eRequiredArgument,
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nullptr, OptionEnumValues(g_watch_type), 0, eArgTypeWatchType,
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"Specify the type of watching to perform."},
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{LLDB_OPT_SET_1, false, "size", 's', OptionParser::eRequiredArgument,
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nullptr, OptionEnumValues(g_watch_size), 0, eArgTypeByteSize,
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"Number of bytes to use to watch a region."}};
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bool OptionGroupWatchpoint::IsWatchSizeSupported(uint32_t watch_size) {
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for (const auto& size : g_watch_size) {
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if (0 == size.value)
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break;
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if (watch_size == size.value)
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return true;
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}
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return false;
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}
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Status
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OptionGroupWatchpoint::SetOptionValue(uint32_t option_idx,
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llvm::StringRef option_arg,
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ExecutionContext *execution_context) {
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Status error;
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const int short_option = g_option_table[option_idx].short_option;
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switch (short_option) {
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case 'w': {
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WatchType tmp_watch_type;
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tmp_watch_type = (WatchType)OptionArgParser::ToOptionEnum(
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option_arg, g_option_table[option_idx].enum_values, 0, error);
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if (error.Success()) {
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watch_type = tmp_watch_type;
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watch_type_specified = true;
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}
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break;
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}
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case 's':
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watch_size = (uint32_t)OptionArgParser::ToOptionEnum(
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option_arg, g_option_table[option_idx].enum_values, 0, error);
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break;
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default:
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llvm_unreachable("Unimplemented option");
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}
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return error;
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}
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void OptionGroupWatchpoint::OptionParsingStarting(
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ExecutionContext *execution_context) {
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watch_type_specified = false;
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watch_type = eWatchInvalid;
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watch_size = 0;
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}
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llvm::ArrayRef<OptionDefinition> OptionGroupWatchpoint::GetDefinitions() {
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return llvm::makeArrayRef(g_option_table);
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}
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