summaryrefslogtreecommitdiff
path: root/Source/cmLinkItem.h
blob: 3d9293528e15713116d0f3ebf03bf9158d4c9632 (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
/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
   file Copyright.txt or https://cmake.org/licensing for details.  */
#ifndef cmLinkItem_h
#define cmLinkItem_h

#include "cmConfigure.h" // IWYU pragma: keep

#include <map>
#include <ostream>
#include <string>
#include <vector>

#include <cmext/algorithm>

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

class cmGeneratorTarget;

// Basic information about each link item.
class cmLinkItem
{
  std::string String;

public:
  cmLinkItem();
  cmLinkItem(std::string s, bool c, cmListFileBacktrace bt);
  cmLinkItem(cmGeneratorTarget const* t, bool c, cmListFileBacktrace bt);
  std::string const& AsStr() const;
  cmGeneratorTarget const* Target = nullptr;
  bool Cross = false;
  cmListFileBacktrace Backtrace;
  friend bool operator<(cmLinkItem const& l, cmLinkItem const& r);
  friend bool operator==(cmLinkItem const& l, cmLinkItem const& r);
  friend std::ostream& operator<<(std::ostream& os, cmLinkItem const& item);
};

class cmLinkImplItem : public cmLinkItem
{
public:
  cmLinkImplItem();
  cmLinkImplItem(cmLinkItem item, bool fromGenex);
  bool FromGenex = false;
};

/** 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;

  // Whether the list depends on a genex referencing the configuration.
  bool HadContextSensitiveCondition = false;
};

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

  // Whether the list depends on a genex referencing the head target.
  bool HadHeadSensitiveCondition = false;

  // Whether the list depends on a genex referencing the configuration.
  bool HadContextSensitiveCondition = false;
};

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 = 0;

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

  bool ImplementationIsInterface = false;

  // Whether the list depends on a link language genex.
  bool HadLinkLanguageSensitiveCondition = false;
};

struct cmOptionalLinkInterface : public cmLinkInterface
{
  bool LibrariesDone = false;
  bool AllDone = false;
  bool Exists = false;
  bool Explicit = false;
};

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

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

  // Whether the list depends on a link language genex.
  bool HadLinkLanguageSensitiveCondition = false;
};

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

/** 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 (cm::contains(debugConfigs, configUpper)) {
    return DEBUG_LibraryType;
  }
  // The current configuration is not a debug configuration.
  return OPTIMIZED_LibraryType;
}

#endif