Add a few options that tweak the host configuration to parallel those that do the same with the target one.

I'm not exactly happy at this development, but we already have a host of --host_* options so it's only incremental badness.

Fixes #4484.

RELNOTES: None.
PiperOrigin-RevId: 183375817

1 files changed, 14 insertions, 2 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/analysis/config/BuildConfiguration.java b/src/main/java/com/google/devtools/build/lib/analysis/config/BuildConfiguration.java
index 3b54a8b17c..d5aa190596 100644
--- a/src/main/java/com/google/devtools/build/lib/analysis/config/BuildConfiguration.java
+++ b/src/main/java/com/google/devtools/build/lib/analysis/config/BuildConfiguration.java
@@ -604,10 +604,22 @@ public class BuildConfiguration implements BuildEvent {
       category = "semantics", // Should this be "flags"?
       documentationCategory = OptionDocumentationCategory.OUTPUT_PARAMETERS,
       effectTags = { OptionEffectTag.AFFECTS_OUTPUTS, OptionEffectTag.ACTION_COMMAND_LINES },
-      help = "Specify the mode the binary will be built in. " + "Values: 'fastbuild', 'dbg', 'opt'."
+      help = "Specify the mode the binary will be built in. Values: 'fastbuild', 'dbg', 'opt'."
     )
     public CompilationMode compilationMode;
 
+    @Option(
+        name = "host_compilation_mode",
+        converter = CompilationMode.Converter.class,
+        defaultValue = "opt",
+        category = "semantics", // Should this be "flags"?
+        documentationCategory = OptionDocumentationCategory.OUTPUT_PARAMETERS,
+        effectTags = { OptionEffectTag.AFFECTS_OUTPUTS, OptionEffectTag.ACTION_COMMAND_LINES },
+        help = "Specify the mode the tools used during the build will be built in. Values: "
+            + "'fastbuild', 'dbg', 'opt'."
+    )
+    public CompilationMode hostCompilationMode;
+
     /**
      * This option is used internally to set output directory name of the <i>host</i> configuration
      * to a constant, so that the output files for the host are completely independent of those for
@@ -1066,7 +1078,7 @@ public class BuildConfiguration implements BuildEvent {
       Options host = (Options) getDefault();
 
       host.outputDirectoryName = "host";
-      host.compilationMode = CompilationMode.OPT;
+      host.compilationMode = hostCompilationMode;
       host.isHost = true;
       host.configsMode = configsMode;
       host.enableRunfiles = enableRunfiles;