1//===-- OptionGroupWatchpoint.cpp -------------------------------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "lldb/Interpreter/OptionGroupWatchpoint.h"
11
12// C Includes
13// C++ Includes
14// Other libraries and framework includes
15// Project includes
16#include "lldb/lldb-enumerations.h"
17#include "lldb/Interpreter/Args.h"
18#include "lldb/Utility/Utils.h"
19
20using namespace lldb;
21using namespace lldb_private;
22
23static OptionEnumValueElement g_watch_type[] =
24{
25    { OptionGroupWatchpoint::eWatchRead,      "read",       "Watch for read"},
26    { OptionGroupWatchpoint::eWatchWrite,     "write",      "Watch for write"},
27    { OptionGroupWatchpoint::eWatchReadWrite, "read_write", "Watch for read/write"},
28    { 0, NULL, NULL }
29};
30
31static OptionEnumValueElement g_watch_size[] =
32{
33    { 1, "1", "Watch for byte size of 1"},
34    { 2, "2", "Watch for byte size of 2"},
35    { 4, "4", "Watch for byte size of 4"},
36    { 8, "8", "Watch for byte size of 8"},
37    { 0, NULL, NULL }
38};
39
40static OptionDefinition
41g_option_table[] =
42{
43    { LLDB_OPT_SET_1, false, "watch", 'w', required_argument, g_watch_type, 0, eArgTypeWatchType, "Specify the type of watching to perform."},
44    { LLDB_OPT_SET_1, false, "xsize", 'x', required_argument, g_watch_size, 0, eArgTypeByteSize, "Number of bytes to use to watch a region."}
45};
46
47
48bool
49OptionGroupWatchpoint::IsWatchSizeSupported(uint32_t watch_size)
50{
51    for (uint32_t i = 0; i < llvm::array_lengthof(g_watch_size); ++i)
52    {
53        if (g_watch_size[i].value == 0)
54            break;
55        if (watch_size == g_watch_size[i].value)
56            return true;
57    }
58    return false;
59}
60
61OptionGroupWatchpoint::OptionGroupWatchpoint () :
62    OptionGroup()
63{
64}
65
66OptionGroupWatchpoint::~OptionGroupWatchpoint ()
67{
68}
69
70Error
71OptionGroupWatchpoint::SetOptionValue (CommandInterpreter &interpreter,
72                                       uint32_t option_idx,
73                                       const char *option_arg)
74{
75    Error error;
76    const int short_option = g_option_table[option_idx].short_option;
77    switch (short_option)
78    {
79        case 'w':
80        {
81            WatchType tmp_watch_type;
82            tmp_watch_type = (WatchType) Args::StringToOptionEnum(option_arg, g_option_table[option_idx].enum_values, 0, error);
83            if (error.Success())
84            {
85                watch_type = tmp_watch_type;
86                watch_type_specified = true;
87            }
88            break;
89        }
90        case 'x':
91            watch_size = (uint32_t) Args::StringToOptionEnum(option_arg, g_option_table[option_idx].enum_values, 0, error);
92            break;
93
94        default:
95            error.SetErrorStringWithFormat("unrecognized short option '%c'", short_option);
96            break;
97    }
98
99    return error;
100}
101
102void
103OptionGroupWatchpoint::OptionParsingStarting (CommandInterpreter &interpreter)
104{
105    watch_type_specified = false;
106    watch_type = eWatchInvalid;
107    watch_size = 0;
108}
109
110
111const OptionDefinition*
112OptionGroupWatchpoint::GetDefinitions ()
113{
114    return g_option_table;
115}
116
117uint32_t
118OptionGroupWatchpoint::GetNumDefinitions ()
119{
120    return llvm::array_lengthof(g_option_table);
121}
122