summaryrefslogtreecommitdiff
path: root/Source/cmLinkItem.h
blob: 8aa3981474186c6e1134a81b8b457d52b1600c3f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
/*============================================================================
  CMake - Cross Platform Makefile Generator
  Copyright 2004-2015 Kitware, Inc.

  Distributed under the OSI-approved BSD License (the "License");
  see accompanying file Copyright.txt for details.

  This software is distributed WITHOUT ANY WARRANTY; without even the
  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  See the License for more information.
============================================================================*/

#ifndef cmLinkItem_h
#define cmLinkItem_h

#include "cmListFileCache.h"
#include "cmSystemTools.h"

class cmGeneratorTarget;

// Basic information about each link item.
class cmLinkItem : public std::string
{
  typedef std::string std_string;

public:
  cmLinkItem()
    : std_string()
    , Target(CM_NULLPTR)
  {
  }
  cmLinkItem(const std_string& n, cmGeneratorTarget const* t)
    : std_string(n)
    , Target(t)
  {
  }
  cmLinkItem(cmLinkItem const& r)
    : std_string(r)
    , Target(r.Target)
  {
  }
  cmGeneratorTarget const* Target;
};

class cmLinkImplItem : public cmLinkItem
{
public:
  cmLinkImplItem()
    : cmLinkItem()
    , Backtrace()
    , FromGenex(false)
  {
  }
  cmLinkImplItem(std::string const& n, cmGeneratorTarget const* t,
                 cmListFileBacktrace const& bt, bool fromGenex)
    : cmLinkItem(n, t)
    , Backtrace(bt)
    , FromGenex(fromGenex)
  {
  }
  cmLinkImplItem(cmLinkImplItem const& r)
    : cmLinkItem(r)
    , Backtrace(r.Backtrace)
    , FromGenex(r.FromGenex)
  {
  }
  cmListFileBacktrace Backtrace;
  bool FromGenex;
};

/** The link implementation specifies the direct library
    dependencies needed by the object files of the target.  */
struct cmLinkImplementationLibraries
{
  // Libraries linked directly in this configuration.
  std::vector<cmLinkImplItem> Libraries;

  // Libraries linked directly in other configurations.
  // Needed only for OLD behavior of CMP0003.
  std::vector<cmLinkItem> WrongConfigLibraries;
};

struct cmLinkInterfaceLibraries
{
  // Libraries listed in the interface.
  std::vector<cmLinkItem> Libraries;
};

struct cmLinkInterface : public cmLinkInterfaceLibraries
{
  // Languages whose runtime libraries must be linked.
  std::vector<std::string> Languages;

  // Shared library dependencies needed for linking on some platforms.
  std::vector<cmLinkItem> SharedDeps;

  // Number of repetitions of a strongly connected component of two
  // or more static libraries.
  unsigned int Multiplicity;

  // Libraries listed for other configurations.
  // Needed only for OLD behavior of CMP0003.
  std::vector<cmLinkItem> WrongConfigLibraries;

  bool ImplementationIsInterface;

  cmLinkInterface()
    : Multiplicity(0)
    , ImplementationIsInterface(false)
  {
  }
};

struct cmOptionalLinkInterface : public cmLinkInterface
{
  cmOptionalLinkInterface()
    : LibrariesDone(false)
    , AllDone(false)
    , Exists(false)
    , HadHeadSensitiveCondition(false)
    , ExplicitLibraries(CM_NULLPTR)
  {
  }
  bool LibrariesDone;
  bool AllDone;
  bool Exists;
  bool HadHeadSensitiveCondition;
  const char* ExplicitLibraries;
};

struct cmHeadToLinkInterfaceMap
  : public std::map<cmGeneratorTarget const*, cmOptionalLinkInterface>
{
};

struct cmLinkImplementation : public cmLinkImplementationLibraries
{
  // Languages whose runtime libraries must be linked.
  std::vector<std::string> Languages;
};

// Cache link implementation computation from each configuration.
struct cmOptionalLinkImplementation : public cmLinkImplementation
{
  cmOptionalLinkImplementation()
    : LibrariesDone(false)
    , LanguagesDone(false)
    , HadHeadSensitiveCondition(false)
  {
  }
  bool LibrariesDone;
  bool LanguagesDone;
  bool HadHeadSensitiveCondition;
};

/** Compute the link type to use for the given configuration.  */
inline cmTargetLinkLibraryType CMP0003_ComputeLinkType(
  const std::string& config, std::vector<std::string> const& debugConfigs)
{
  // No configuration is always optimized.
  if (config.empty()) {
    return OPTIMIZED_LibraryType;
  }

  // Check if any entry in the list matches this configuration.
  std::string configUpper = cmSystemTools::UpperCase(config);
  if (std::find(debugConfigs.begin(), debugConfigs.end(), configUpper) !=
      debugConfigs.end()) {
    return DEBUG_LibraryType;
  }
  // The current configuration is not a debug configuration.
  return OPTIMIZED_LibraryType;
}

#endif