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
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
|
// Copyright 2016 The Bazel Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.devtools.build.lib.rules.objc;
import com.google.common.base.Optional;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableListMultimap;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Iterables;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.analysis.RuleConfiguredTarget.Mode;
import com.google.devtools.build.lib.analysis.RuleContext;
import com.google.devtools.build.lib.analysis.TransitiveInfoCollection;
import com.google.devtools.build.lib.analysis.config.BuildConfiguration;
import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder;
import com.google.devtools.build.lib.packages.RuleClass.ConfiguredTargetFactory.RuleErrorException;
import com.google.devtools.build.lib.rules.apple.Platform;
import com.google.devtools.build.lib.rules.objc.CompilationSupport.ExtraLinkArgs;
import com.google.devtools.build.lib.rules.objc.ObjcCommon.ResourceAttributes;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
* Support utility for creating multi-arch Apple binaries.
*/
public class MultiArchBinarySupport {
private final RuleContext ruleContext;
/**
* @param ruleContext the current rule context
*/
public MultiArchBinarySupport(RuleContext ruleContext) {
this.ruleContext = ruleContext;
}
/**
* Registers actions to create a multi-arch Apple binary.
*
* @param platform the platform for which the binary is targeted
* @param extraLinkArgs the extra linker args to add to link actions linking single-architecture
* binaries together
* @param configurationToObjcCommon a map from from dependency configuration to the
* {@link ObjcCommon} which comprises all information about the dependencies in that
* configuration. Can be obtained via {@link #objcCommonByDepConfiguration}
* @param configToDepsCollectionMap a multimap from dependency configuration to the
* list of provider collections which are propagated from the dependencies of that
* configuration
* @param outputLipoBinary the artifact (lipo'ed binary) which should be output as a result of
* this support
* @throws RuleErrorException if there are attribute errors in the current rule context
*/
public void registerActions(Platform platform,
ExtraLinkArgs extraLinkArgs,
Map<BuildConfiguration, ObjcCommon> configurationToObjcCommon,
ImmutableListMultimap<BuildConfiguration, TransitiveInfoCollection> configToDepsCollectionMap,
Artifact outputLipoBinary) throws RuleErrorException {
NestedSetBuilder<Artifact> binariesToLipo =
NestedSetBuilder.<Artifact>stableOrder();
for (BuildConfiguration childConfig : configurationToObjcCommon.keySet()) {
ObjcCommon common = configurationToObjcCommon.get(childConfig);
IntermediateArtifacts intermediateArtifacts =
ObjcRuleClasses.intermediateArtifacts(ruleContext, childConfig);
ImmutableList.Builder<J2ObjcMappingFileProvider> j2ObjcMappingFileProviders =
ImmutableList.builder();
J2ObjcEntryClassProvider.Builder j2ObjcEntryClassProviderBuilder =
new J2ObjcEntryClassProvider.Builder();
for (TransitiveInfoCollection dep : configToDepsCollectionMap.get(childConfig)) {
if (dep.getProvider(J2ObjcMappingFileProvider.class) != null) {
j2ObjcMappingFileProviders.add(dep.getProvider(J2ObjcMappingFileProvider.class));
}
if (dep.getProvider(J2ObjcEntryClassProvider.class) != null) {
j2ObjcEntryClassProviderBuilder.addTransitive(
dep.getProvider(J2ObjcEntryClassProvider.class));
}
}
J2ObjcMappingFileProvider j2ObjcMappingFileProvider =
J2ObjcMappingFileProvider.union(j2ObjcMappingFileProviders.build());
J2ObjcEntryClassProvider j2ObjcEntryClassProvider = j2ObjcEntryClassProviderBuilder.build();
binariesToLipo.add(intermediateArtifacts.strippedSingleArchitectureBinary());
new CompilationSupport(ruleContext, childConfig)
.registerCompileAndArchiveActions(common)
.registerLinkActions(
common.getObjcProvider(),
j2ObjcMappingFileProvider,
j2ObjcEntryClassProvider,
extraLinkArgs,
ImmutableList.<Artifact>of(),
DsymOutputType.APP)
.validateAttributes();
ruleContext.assertNoErrors();
}
new LipoSupport(ruleContext)
.registerCombineArchitecturesAction(
binariesToLipo.build(),
outputLipoBinary,
platform);
}
/**
* Returns a map from from dependency configuration to the {@link ObjcCommon} which comprises
* all information about the dependencies in that configuration. This can be used both to
* register actions in {@link #registerActions} and collect provider information to be
* propagated upstream.
*
* @param childConfigurations the set of configurations in which dependencies of the current
* rule are built
* @param configToDepsCollectionMap a map from child configuration to providers that "deps" of
* the current rule have propagated in that configuration
* @param configurationToNonPropagatedObjcMap a map from child configuration to providers that
* "non_propagated_deps" of the current rule have propagated in that configuration
* @param configToDylibsObjcMap providers that dynamic library dependencies of the current rule
* have propagated
* @throws RuleErrorException if there are attribute errors in the current rule context
*/
public Map<BuildConfiguration, ObjcCommon> objcCommonByDepConfiguration(
Set<BuildConfiguration> childConfigurations,
ImmutableListMultimap<BuildConfiguration, TransitiveInfoCollection> configToDepsCollectionMap,
ImmutableListMultimap<BuildConfiguration, ObjcProvider> configurationToNonPropagatedObjcMap,
Iterable<ObjcProvider> configToDylibsObjcMap)
throws RuleErrorException {
ImmutableMap.Builder<BuildConfiguration, ObjcCommon> configurationToObjcCommonBuilder =
ImmutableMap.builder();
for (BuildConfiguration childConfig : childConfigurations) {
Optional<ObjcProvider> protosObjcProvider;
if (ObjcRuleClasses.objcConfiguration(ruleContext).enableAppleBinaryNativeProtos()) {
ProtobufSupport protoSupport =
new ProtobufSupport(ruleContext, childConfig)
.registerGenerationActions()
.registerCompilationActions();
protosObjcProvider = protoSupport.getObjcProvider();
} else {
protosObjcProvider = Optional.absent();
}
IntermediateArtifacts intermediateArtifacts =
ObjcRuleClasses.intermediateArtifacts(ruleContext, childConfig);
Iterable<ObjcProvider> additionalDepProviders = Iterables.concat(configToDylibsObjcMap,
ruleContext.getPrerequisites("bundles", Mode.TARGET, ObjcProvider.class),
protosObjcProvider.asSet());
ObjcCommon common =
common(
ruleContext,
childConfig,
intermediateArtifacts,
nullToEmptyList(configToDepsCollectionMap.get(childConfig)),
nullToEmptyList(configurationToNonPropagatedObjcMap.get(childConfig)),
additionalDepProviders);
configurationToObjcCommonBuilder.put(childConfig, common);
}
return configurationToObjcCommonBuilder.build();
}
private ObjcCommon common(
RuleContext ruleContext,
BuildConfiguration buildConfiguration,
IntermediateArtifacts intermediateArtifacts,
List<TransitiveInfoCollection> propagatedDeps,
List<ObjcProvider> nonPropagatedObjcDeps,
Iterable<ObjcProvider> additionalDepProviders) {
CompilationArtifacts compilationArtifacts =
CompilationSupport.compilationArtifacts(ruleContext, intermediateArtifacts);
ObjcCommon.Builder commonBuilder = new ObjcCommon.Builder(ruleContext, buildConfiguration)
.setCompilationAttributes(
CompilationAttributes.Builder.fromRuleContext(ruleContext).build())
.setCompilationArtifacts(compilationArtifacts)
.setResourceAttributes(new ResourceAttributes(ruleContext))
.addDefines(ruleContext.getTokenizedStringListAttr("defines"))
.addDeps(propagatedDeps)
.addDepObjcProviders(additionalDepProviders)
.addNonPropagatedDepObjcProviders(nonPropagatedObjcDeps)
.setIntermediateArtifacts(intermediateArtifacts)
.setAlwayslink(false)
// TODO(b/29152500): Enable module map generation.
.setLinkedBinary(intermediateArtifacts.strippedSingleArchitectureBinary());
if (ObjcRuleClasses.objcConfiguration(ruleContext).generateDsym()) {
commonBuilder.addDebugArtifacts(DsymOutputType.APP);
}
return commonBuilder.build();
}
private <T> List<T> nullToEmptyList(List<T> inputList) {
return inputList != null ? inputList : ImmutableList.<T>of();
}
}
|
