In case of a memory allocation failure, print current readout

core/hw/mem/_vmem.cpp

@@ -561,8 +561,8 @@ error:
 		fd = ashmem_create_region(0,RAM_SIZE + VRAM_SIZE +ARAM_SIZE);
 		if (false)//this causes writebacks to flash -> slow and stuttery 
 		{
-		fd = open("/data/data/com.example.droidcast/dcnzorz_mem",O_CREAT|O_RDWR|O_TRUNC,S_IRWXU|S_IRWXG|S_IRWXO);
+		fd = open("/data/data/com.reicast.emulator/files/dcnzorz_mem",O_CREAT|O_RDWR|O_TRUNC,S_IRWXU|S_IRWXG|S_IRWXO);
-		unlink("/data/data/com.example.droidcast/dcnzorz_mem");
+		unlink("/data/data/com.reicast.emulator/files/dcnzorz_mem");
 		}
 #endif
 

core/linux/common.cpp

@@ -155,12 +155,43 @@ void VArray2::LockRegion(u32 offset,u32 size)
 	}
 }
 
+void print_mem_addr()
+{
+    FILE *ifp, *ofp;
+    char *mode = "r";
+    char outputFilename[] = "/data/data/com.reicast.emulator/files/reicast_mem.txt";
+
+    ifp = fopen("/proc/self/maps", mode);
+
+    if (ifp == NULL) {
+        fprintf(stderr, "Can't open input file /proc/self/maps!\n");
+        exit(1);
+    }
+
+    ofp = fopen(outputFilename, "w");
+
+    if (ofp == NULL) {
+        fprintf(stderr, "Can't open output file %s!\n",
+                outputFilename);
+        exit(1);
+    }
+
+    char line [ 512 ];
+    while (fgets(line, sizeof line, ifp) != NULL) {
+        fprintf(ofp, "%s\n", line);
+    }
+
+    fclose(ifp);
+    fclose(ofp);
+}
+
 void VArray2::UnLockRegion(u32 offset,u32 size)
 {
   u32 inpage=offset & PAGE_MASK;
 	u32 rv=mprotect (data+offset-inpage, size+inpage, PROT_READ | PROT_WRITE);
 	if (rv!=0)
 	{
+        print_mem_addr();
 		printf("mprotect(%08X,%08X,RW) failed: %d | %d\n",data+offset-inpage,size+inpage,rv,errno);
 		die("mprotect  failed ..\n");
 	}

shell/android/src/com/reicast/emulator/MainActivity.java

@@ -60,6 +60,8 @@ public class MainActivity extends SlidingFragmentActivity implements
 		home_directory = mPrefs.getString("home_directory", home_directory);
 		JNIdc.config(home_directory);
 		
+		getFilesDir().mkdir();
+		
 		mUEHandler = new Thread.UncaughtExceptionHandler() {
 	        public void uncaughtException(Thread t, Throwable error) {
 	        	if (error != null) {