Link libclcore.bc for RenderScript by default.

Change-Id: I93eb5a09689373afa973b8c08dd0842152220217
diff --git a/lib/RenderScript/RSInfo.cpp b/lib/RenderScript/RSInfo.cpp
index f3010cf..6f1b309 100644
--- a/lib/RenderScript/RSInfo.cpp
+++ b/lib/RenderScript/RSInfo.cpp
@@ -29,8 +29,11 @@
 
 const char RSInfo::LibBCCPath[] = "/system/lib/libbcc.so";
 const char RSInfo::LibRSPath[] = "/system/lib/libRS.so";
+const char RSInfo::LibCLCorePath[] = "/system/lib/libclcore.bc";
+
 const uint8_t *RSInfo::LibBCCSHA1 = NULL;
 const uint8_t *RSInfo::LibRSSHA1 = NULL;
+const uint8_t *RSInfo::LibCLCoreSHA1 = NULL;
 
 void RSInfo::LoadBuiltInSHA1Information() {
   if (LibBCCSHA1 != NULL) {
@@ -47,6 +50,8 @@
 
   LibBCCSHA1 = reinterpret_cast<const uint8_t *>(::dlsym(h, "libbcc_so_SHA1"));
   LibRSSHA1 = reinterpret_cast<const uint8_t *>(::dlsym(h, "libRS_so_SHA1"));
+  LibCLCoreSHA1 =
+      reinterpret_cast<const uint8_t *>(::dlsym(h, "libclcore_bc_SHA1"));
 
   return;
 }
@@ -69,8 +74,8 @@
 bool RSInfo::CheckDependency(const RSInfo &pInfo,
                              const char *pInputFilename,
                              const RSScript::SourceDependencyListTy &pDeps) {
-  // Built-in dependencies are libbcc.so and libRS.so.
-  static const unsigned NumBuiltInDependencies = 2;
+  // Built-in dependencies are libbcc.so, libRS.so and libclcore.bc.
+  static const unsigned NumBuiltInDependencies = 3;
 
   LoadBuiltInSHA1Information();
 
@@ -85,6 +90,8 @@
         pInfo.mDependencyTable[0];
     const std::pair<const char *, const uint8_t *> &cache_libRS_dep =
         pInfo.mDependencyTable[1];
+    const std::pair<const char *, const uint8_t *> &cache_libclcore_dep =
+        pInfo.mDependencyTable[2];
 
     // Check libbcc.so.
     if (::memcmp(cache_libbcc_dep.second, LibBCCSHA1, SHA1_DIGEST_LENGTH) != 0) {
@@ -106,6 +113,17 @@
         return false;
     }
 
+    // Check libclcore.bc.
+    if (::memcmp(cache_libclcore_dep.second, LibCLCoreSHA1,
+                 SHA1_DIGEST_LENGTH) != 0) {
+        ALOGD("Cache %s is dirty due to %s has been updated.", pInputFilename,
+              LibRSPath);
+        PRINT_DEPENDENCY("current - ", LibCLCorePath, LibCLCoreSHA1);
+        PRINT_DEPENDENCY("cache - ", cache_libclcore_dep.first,
+                                     cache_libclcore_dep.second);
+        return false;
+    }
+
     for (unsigned i = 0; i < pDeps.size(); i++) {
       const RSScript::SourceDependency &in_dep = *(pDeps[i]);
       const std::pair<const char *, const uint8_t *> &cache_dep =
diff --git a/lib/RenderScript/RSInfoExtractor.cpp b/lib/RenderScript/RSInfoExtractor.cpp
index c303ef3..c9c75b2 100644
--- a/lib/RenderScript/RSInfoExtractor.cpp
+++ b/lib/RenderScript/RSInfoExtractor.cpp
@@ -167,6 +167,7 @@
   // pool.
   string_pool_size += ::strlen(LibBCCPath) + 1 + SHA1_DIGEST_LENGTH;
   string_pool_size += ::strlen(LibRSPath) + 1 + SHA1_DIGEST_LENGTH;
+  string_pool_size += ::strlen(LibCLCorePath) + 1 + SHA1_DIGEST_LENGTH;
   for (unsigned i = 0, e = pDeps.size(); i != e; i++) {
     const RSScript::SourceDependency *source_dep = pDeps[i];
     if (source_dep != NULL) {
@@ -371,6 +372,12 @@
     goto bail;
   }
 
+  if (!writeDependency(LibCLCorePath, LibCLCoreSHA1,
+                       result->mStringPool, &cur_string_pool_offset,
+                       result->mDependencyTable)) {
+    goto bail;
+  }
+
   //===--------------------------------------------------------------------===//
   // Record dependency information.
   //===--------------------------------------------------------------------===//
diff --git a/lib/RenderScript/RSScript.cpp b/lib/RenderScript/RSScript.cpp
index ef39897..0efc43b 100644
--- a/lib/RenderScript/RSScript.cpp
+++ b/lib/RenderScript/RSScript.cpp
@@ -20,6 +20,8 @@
 
 #include <llvm/ADT/STLExtras.h>
 
+#include "bcc/RenderScript/RSInfo.h"
+#include "bcc/Source.h"
 #include "bcc/Support/Log.h"
 
 using namespace bcc;
@@ -31,6 +33,27 @@
   return;
 }
 
+bool RSScript::LinkRuntime(RSScript &pScript) {
+  // Using the same context with the source in pScript.
+  BCCContext &context = pScript.getSource().getContext();
+  Source *libclcore_source = Source::CreateFromFile(context,
+                                                    RSInfo::LibCLCorePath);
+  if (libclcore_source == NULL) {
+    ALOGE("Failed to load Renderscript library '%s' to link!",
+          RSInfo::LibCLCorePath);
+    return false;
+  }
+
+  if (!pScript.getSource().merge(*libclcore_source,
+                                 /* pPreserveSource */false)) {
+    ALOGE("Failed to link RenderScript library '%s'!", RSInfo::LibCLCorePath);
+    delete libclcore_source;
+    return false;
+  }
+
+  return true;
+}
+
 RSScript::RSScript(Source &pSource)
   : Script(pSource), mInfo(NULL), mCompilerVersion(0),
     mOptimizationLevel(kOptLvl3) { }