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//===-- OptionGroupWatchpoint.cpp -----------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "lldb/Interpreter/OptionGroupWatchpoint.h"
#include "lldb/Host/OptionParser.h"
#include "lldb/Interpreter/OptionArgParser.h"
#include "lldb/Target/Language.h"
#include "lldb/lldb-enumerations.h"
using namespace lldb;
using namespace lldb_private;
static constexpr OptionEnumValueElement g_watch_type[] = {
{
OptionGroupWatchpoint::eWatchRead,
"read",
"Watch for read",
},
{
OptionGroupWatchpoint::eWatchWrite,
"write",
"Watch for write",
},
{
OptionGroupWatchpoint::eWatchReadWrite,
"read_write",
"Watch for read/write",
},
};
static constexpr OptionEnumValueElement g_watch_size[] = {
{
1,
"1",
"Watch for byte size of 1",
},
{
2,
"2",
"Watch for byte size of 2",
},
{
4,
"4",
"Watch for byte size of 4",
},
{
8,
"8",
"Watch for byte size of 8",
},
};
static constexpr OptionDefinition g_option_table[] = {
{LLDB_OPT_SET_1, false, "watch", 'w', OptionParser::eRequiredArgument,
nullptr, OptionEnumValues(g_watch_type), 0, eArgTypeWatchType,
"Specify the type of watching to perform."},
{LLDB_OPT_SET_1, false, "size", 's', OptionParser::eRequiredArgument,
nullptr, OptionEnumValues(g_watch_size), 0, eArgTypeByteSize,
"Number of bytes to use to watch a region."},
{LLDB_OPT_SET_2,
false,
"language",
'l',
OptionParser::eRequiredArgument,
nullptr,
{},
0,
eArgTypeLanguage,
"Language of expression to run"}};
bool OptionGroupWatchpoint::IsWatchSizeSupported(uint32_t watch_size) {
for (const auto& size : g_watch_size) {
if (0 == size.value)
break;
if (watch_size == size.value)
return true;
}
return false;
}
Status
OptionGroupWatchpoint::SetOptionValue(uint32_t option_idx,
llvm::StringRef option_arg,
ExecutionContext *execution_context) {
Status error;
const int short_option = g_option_table[option_idx].short_option;
switch (short_option) {
case 'l': {
language_type = Language::GetLanguageTypeFromString(option_arg);
if (language_type == eLanguageTypeUnknown) {
StreamString sstr;
sstr.Printf("Unknown language type: '%s' for expression. List of "
"supported languages:\n",
option_arg.str().c_str());
Language::PrintSupportedLanguagesForExpressions(sstr, " ", "\n");
error.SetErrorString(sstr.GetString());
}
break;
}
case 'w': {
WatchType tmp_watch_type;
tmp_watch_type = (WatchType)OptionArgParser::ToOptionEnum(
option_arg, g_option_table[option_idx].enum_values, 0, error);
if (error.Success()) {
watch_type = tmp_watch_type;
watch_type_specified = true;
}
break;
}
case 's':
watch_size = (uint32_t)OptionArgParser::ToOptionEnum(
option_arg, g_option_table[option_idx].enum_values, 0, error);
break;
default:
llvm_unreachable("Unimplemented option");
}
return error;
}
void OptionGroupWatchpoint::OptionParsingStarting(
ExecutionContext *execution_context) {
watch_type_specified = false;
watch_type = eWatchInvalid;
watch_size = 0;
language_type = eLanguageTypeUnknown;
}
llvm::ArrayRef<OptionDefinition> OptionGroupWatchpoint::GetDefinitions() {
return llvm::ArrayRef(g_option_table);
}
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