linking issues on Linux. It seems that the name 'launch' for a function was causing some weird linking issues that only happened sometimes. Quite ikely, the issue is another library using the same name.

com.ibm.wala.cast.test/harness-src/c/Makefile

@@ -27,8 +27,8 @@ $(C_GENERATED)/smoke_main.o:	$(TEST_JNI_BRIDGE_HEADER) smoke_main.cpp
 $(CAST_TEST_BIN)$(LIBPREFIX)xlator_test.$(DLLEXT):	$(C_GENERATED)/smoke.o
 	$(CC) $(CC_LDFLAGS) -Wl,-rpath -Wl,$(DOMO_AST_BIN) $(CAST_OBJS) -o $@
 
-main:	$(CAST_TEST_BIN)/smoke_main
+main:	/tmp/smoke_main
 
-$(CAST_TEST_BIN)/smoke_main:	$(TEST_JNI_BRIDGE_HEADER) $(DOMO_AST_BIN)/$(LIBPREFIX)cast/launch.o $(C_GENERATED)/smoke_main.o
+/tmp/smoke_main:	$(TEST_JNI_BRIDGE_HEADER) $(DOMO_AST_BIN)/$(LIBPREFIX)cast/launch.o $(C_GENERATED)/smoke_main.o
 	$(CC) $(ALL_FLAGS) $(DOMO_AST_BIN)/$(LIBPREFIX)cast/launch.o $(C_GENERATED)/smoke_main.o $(CC_LD_PATHS) -o $@ 
 

com.ibm.wala.cast.test/harness-src/c/smoke_main.cpp

@@ -33,28 +33,40 @@ int main(int argc, char **argv) {
   char *buf = (char *)malloc((strlen(argv[1]) + 100) * sizeof(char));
   strcpy(buf, argv[1]);
 
-  printf("%s\n", buf);
+  printf("1: %s\n", buf);
   
-  JNIEnv *java_env = launch(buf);
+  JNIEnv *java_env = launch_jvm(buf);
+  
+  printf("2: %s\n", buf);
   
   jclass NativeTranslatorTest =
     java_env->FindClass("com/ibm/wala/cast/test/TestNativeTranslator");
   if (java_env->ExceptionCheck()) { die(java_env); }
 
+  printf("3: %s\n", buf);
+  
   jmethodID testInit =
     java_env->GetMethodID(NativeTranslatorTest, "<init>", "()V");
   if (java_env->ExceptionCheck()) { die(java_env); }
 
+  printf("4: %s\n", buf);
+  
   jobject test =
     java_env->NewObject(NativeTranslatorTest, testInit);
   if (java_env->ExceptionCheck()) { die(java_env); }
 
+  printf("5: %s\n", buf);
+  
   jmethodID testAst =
     java_env->GetMethodID(NativeTranslatorTest, "testNativeCAst", "()V");
   if (java_env->ExceptionCheck()) { die(java_env); }
   
+  printf("6: %s\n", buf);
+  
   java_env->CallVoidMethod(test, testAst);
   if (java_env->ExceptionCheck()) { die(java_env); }
 
+  printf("6: %s\n", buf);
+
   exit(0);
 }

com.ibm.wala.cast.test/harness-src/java/com/ibm/wala/cast/test/TestNativeTranslator.java

@@ -24,6 +24,7 @@ import com.ibm.wala.cast.tree.impl.CAstImpl;
 import com.ibm.wala.cast.tree.rewrite.CAstRewriter.CopyKey;
 import com.ibm.wala.cast.tree.rewrite.CAstRewriter.RewriteContext;
 import com.ibm.wala.cast.tree.rewrite.CAstRewriterFactory;
+import com.ibm.wala.ssa.IR;
 import com.ibm.wala.util.io.TemporaryFile;
 
 public class TestNativeTranslator {
@@ -149,7 +150,7 @@ public class TestNativeTranslator {
   public void testNativeCAst() throws IOException {
     CAst Ast = new CAstImpl();
     
-    URL junk = TestNativeTranslator.class.getClassLoader().getResource("smoke_main");
+    URL junk = IR.class.getClassLoader().getResource("primordial.txt");
      
     SmokeXlator xlator = new SmokeXlator(Ast, junk);
     

com.ibm.wala.cast.test/pom.xml

@@ -35,7 +35,7 @@
 	    <id>test-native</id>
 	    <phase>test</phase>
 	    <configuration>
-	      <executable>${project.build.outputDirectory}/smoke_main</executable>
+	      <executable>/tmp/smoke_main</executable>
 	      <arguments>
 		<argument>${project.build.outputDirectory}:${basedir}/../com.ibm.wala.cast/target/classes:${basedir}/../com.ibm.wala.core/target/classes:${basedir}/../com.ibm.wala.util/target/classes</argument>
 	      </arguments>

com.ibm.wala.cast/source/c/cbuild.sh

@@ -8,7 +8,7 @@ if (uname | grep -i "cygwin"); then
 	
 	cmd.exe /c "call \"$MSVC\\vcvarsall.bat\" $ARCH && make"
 else
-	make
+	make --quiet
 fi
 
 # Local variables:

com.ibm.wala.cast/source/c/include/launch.h

@@ -3,7 +3,7 @@
 
 #include "jni.h"
 
-extern "C" JNIEnv *launch(char *);
-extern "C" void kill();
+extern JNIEnv *launch_jvm(char *);
+extern void kill();
 
 #endif

com.ibm.wala.cast/source/c/jni/launch.cpp

@@ -3,10 +3,11 @@
 #include <strings.h>
 #include "Exceptions.h"
 #include "CAstWrapper.h"
+#include "launch.h"
 
 JavaVM *javaVM;
 
-JNIEnv *launch(char *classpath) {
+JNIEnv *launch_jvm(char *classpath) {
    JavaVMOption jvmopt[2];
 
    const char *jcp = "-Djava.class.path=";