Refactor and remove libvm, working Intel Linux bootloader.

tools/bootloader/sysThread_Intel.c

@@ -0,0 +1,49 @@
+/*
+ *  This file is part of the Jikes RVM project (http://jikesrvm.org).
+ *
+ *  This file is licensed to You under the Common Public License (CPL);
+ *  You may not use this file except in compliance with the License. You
+ *  may obtain a copy of the License at
+ *
+ *      http://www.opensource.org/licenses/cpl1.0.php
+ *
+ *  See the COPYRIGHT.txt file distributed with this work for information
+ *  regarding copyright ownership.
+ */
+
+/*
+ * Architecture specific thread code
+ */
+
+#include "sys.h"
+
+/**
+ * Transfer execution from C to Java for thread startup
+ */
+void bootThread (void *ip, void *tr, void *sp, void UNUSED *jtoc)
+{
+  void *saved_ebp;
+  asm (
+#ifndef __x86_64__
+       "mov   %%ebp, %0     \n"
+       "mov   %%esp, %%ebp  \n"
+       "mov   %3, %%esp     \n"
+       "push  %%ebp         \n"
+       "call  *%%eax        \n"
+       "pop   %%esp         \n"
+       "mov   %0, %%ebp     \n"
+#else
+       "mov   %%rbp, %0     \n"
+       "mov   %%rsp, %%rbp  \n"
+       "mov   %3, %%rsp     \n"
+       "push  %%rbp         \n"
+       "call  *%%rax        \n"
+       "pop   %%rsp         \n"
+       "mov   %0, %%rbp     \n"
+#endif
+       : "=m"(saved_ebp)
+       : "a"(ip), // EAX = Instruction Pointer
+	 "S"(tr), // ESI = Thread Register
+	 "r"(sp)
+       );
+}

tools/bootloader/sysThread_PowerPC.c

@@ -0,0 +1,32 @@
+/*
+ *  This file is part of the Jikes RVM project (http://jikesrvm.org).
+ *
+ *  This file is licensed to You under the Common Public License (CPL);
+ *  You may not use this file except in compliance with the License. You
+ *  may obtain a copy of the License at
+ *
+ *      http://www.opensource.org/licenses/cpl1.0.php
+ *
+ *  See the COPYRIGHT.txt file distributed with this work for information
+ *  regarding copyright ownership.
+ */
+
+/*
+ * Architecture specific thread code
+ */
+
+/**
+ * Transfer execution from C to Java for thread startup
+ */
+void bootThread (void *pc, void *tr, void *sp, void UNUSED *jtoc)
+{
+  asm ("mtlr    %3\n"
+       "blr     \n"
+       : /* outs */
+       : /* ins */
+	 "JTOC"(jtoc),
+	 "THREAD_REGISTER"(tr),
+	 "FP"(sp),
+	 "r"(pc)
+       );
+}