Split debug - publish debug info

- Publish debug info
- Add a linker flag to ensure build ID is added (even on musl)

Author: r1viollet

ddprof-lib/build.gradle

@@ -165,6 +165,12 @@ def setupDebugExtraction(config, linkTask) {
       // Create an extra folder for the debug symbols
       copyTask.dependsOn copyDebugTask
     }
+
+    // Wire up the debug info JAR to depend on debug files being copied
+    def debugInfoJarTask = tasks.findByName("debugInfoJar")
+    if (debugInfoJarTask != null) {
+      debugInfoJarTask.dependsOn copyDebugTask
+    }
   }
 }
 
@@ -598,6 +604,15 @@ tasks.register('javadocJar', Jar) {
   from javadoc.destinationDir
 }
 
+tasks.register('debugInfoJar', Jar) {
+  archiveBaseName = libraryName
+  archiveClassifier = 'debugInfo'
+  archiveVersion = component_version
+  from files(libraryTargetBase('release-debug')) {
+    include "**/*"
+  }
+}
+
 tasks.register('scanBuild', Exec) {
   workingDir "${projectDir}/src/test/make"
   commandLine 'scan-build'
@@ -667,6 +682,7 @@ publishing {
       }
       publication.artifact sourcesJar
       publication.artifact javadocJar
+      publication.artifact debugInfoJar
 
       publication.groupId = 'com.datadoghq'
       publication.artifactId = 'ddprof'

gradle/configurations.gradle

@@ -119,7 +119,7 @@ def commonLinuxCompilerArgs = [
   "-DCOUNTERS"
 ]
 
-def commonLinuxLinkerArgs = ["-ldl", "-Wl,-z,defs", "--verbose", "-lpthread", "-lm", "-lrt", "-v"]
+def commonLinuxLinkerArgs = ["-ldl", "-Wl,-z,defs", "--verbose", "-lpthread", "-lm", "-lrt", "-v", "-Wl,--build-id"]
 
 def commonMacosCompilerArgs = commonLinuxCompilerArgs + ["-D_XOPEN_SOURCE", "-D_DARWIN_C_SOURCE"]