Fresh start

1 files changed, 182 insertions, 0 deletions

diff --git a/jni/ruby/vm_exec.h b/jni/ruby/vm_exec.h
new file mode 100644
index 0000000..3de601f
--- /dev/null
+++ b/jni/ruby/vm_exec.h
@@ -0,0 +1,182 @@
+/**********************************************************************
+
+  vm.h -
+
+  $Author: ko1 $
+  created at: 04/01/01 16:56:59 JST
+
+  Copyright (C) 2004-2007 Koichi Sasada
+
+**********************************************************************/
+
+#ifndef RUBY_VM_EXEC_H
+#define RUBY_VM_EXEC_H
+
+typedef long OFFSET;
+typedef unsigned long lindex_t;
+typedef VALUE GENTRY;
+typedef rb_iseq_t *ISEQ;
+
+#ifdef __GCC__
+/* TODO: machine dependent prefetch instruction */
+#define PREFETCH(pc)
+#else
+#define PREFETCH(pc)
+#endif
+
+#if VMDEBUG > 0
+#define debugs printf
+#define DEBUG_ENTER_INSN(insn) \
+    rb_vmdebug_debug_print_pre(th, GET_CFP(),GET_PC());
+
+#if OPT_STACK_CACHING
+#define SC_REGS() , reg_a, reg_b
+#else
+#define SC_REGS()
+#endif
+
+#define DEBUG_END_INSN() \
+  rb_vmdebug_debug_print_post(th, GET_CFP() SC_REGS());
+
+#else
+
+#define debugs
+#define DEBUG_ENTER_INSN(insn)
+#define DEBUG_END_INSN()
+#endif
+
+#define throwdebug if(0)printf
+/* #define throwdebug printf */
+
+/************************************************/
+#if defined(DISPATCH_XXX)
+error !
+/************************************************/
+#elif OPT_CALL_THREADED_CODE
+
+#define LABEL(x)  insn_func_##x
+#define ELABEL(x)
+#define LABEL_PTR(x) &LABEL(x)
+
+#define INSN_ENTRY(insn) \
+  static rb_control_frame_t * \
+    FUNC_FASTCALL(LABEL(insn))(rb_thread_t *th, rb_control_frame_t *reg_cfp) {
+
+#define END_INSN(insn) return reg_cfp;}
+
+#define NEXT_INSN() return reg_cfp;
+
+/************************************************/
+#elif OPT_TOKEN_THREADED_CODE || OPT_DIRECT_THREADED_CODE
+/* threaded code with gcc */
+
+#define LABEL(x)  INSN_LABEL_##x
+#define ELABEL(x) INSN_ELABEL_##x
+#define LABEL_PTR(x) &&LABEL(x)
+
+#define INSN_ENTRY_SIG(insn)
+
+
+#define INSN_DISPATCH_SIG(insn)
+
+#define INSN_ENTRY(insn) \
+  LABEL(insn): \
+  INSN_ENTRY_SIG(insn); \
+
+/* dispatcher */
+#if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__)) && __GNUC__ == 3
+#define DISPATCH_ARCH_DEPEND_WAY(addr) \
+  __asm__ __volatile__("jmp *%0;\t# -- inserted by vm.h\t[length = 2]" : : "r" (addr))
+
+#else
+#define DISPATCH_ARCH_DEPEND_WAY(addr) \
+				/* do nothing */
+
+#endif
+
+
+/**********************************/
+#if OPT_DIRECT_THREADED_CODE
+
+/* for GCC 3.4.x */
+#define TC_DISPATCH(insn) \
+  INSN_DISPATCH_SIG(insn); \
+  goto *(void const *)GET_CURRENT_INSN(); \
+  ;
+
+#else
+/* token threaded code */
+
+#define TC_DISPATCH(insn)  \
+  DISPATCH_ARCH_DEPEND_WAY(insns_address_table[GET_CURRENT_INSN()]); \
+  INSN_DISPATCH_SIG(insn); \
+  goto *insns_address_table[GET_CURRENT_INSN()]; \
+  rb_bug("tc error");
+
+
+#endif /* DISPATCH_DIRECT_THREADED_CODE */
+
+#define END_INSN(insn)      \
+  DEBUG_END_INSN();         \
+  TC_DISPATCH(insn);
+
+#define INSN_DISPATCH()     \
+  TC_DISPATCH(__START__)    \
+  {
+
+#define END_INSNS_DISPATCH()    \
+      rb_bug("unknown insn: %"PRIdVALUE, GET_CURRENT_INSN());   \
+  }   /* end of while loop */   \
+
+#define NEXT_INSN() TC_DISPATCH(__NEXT_INSN__)
+
+/************************************************/
+#else /* no threaded code */
+/* most common method */
+
+#define INSN_ENTRY(insn) \
+case BIN(insn):
+
+#define END_INSN(insn)                        \
+  DEBUG_END_INSN();                           \
+  break;
+
+
+#define INSN_DISPATCH()         \
+  while (1) {			\
+    switch (GET_CURRENT_INSN()) {
+
+#define END_INSNS_DISPATCH()    \
+default:                        \
+  SDR(); \
+      rb_bug("unknown insn: %ld", GET_CURRENT_INSN());   \
+    } /* end of switch */       \
+  }   /* end of while loop */   \
+
+#define NEXT_INSN() goto first
+
+#endif
+
+#define VM_SP_CNT(th, sp) ((sp) - (th)->stack)
+
+#if OPT_CALL_THREADED_CODE
+#define THROW_EXCEPTION(exc) do { \
+    th->errinfo = (VALUE)(exc); \
+    return 0; \
+} while (0)
+#else
+#define THROW_EXCEPTION(exc) return (VALUE)(exc)
+#endif
+
+#define SCREG(r) (reg_##r)
+
+#define VM_DEBUG_STACKOVERFLOW 0
+
+#if VM_DEBUG_STACKOVERFLOW
+#define CHECK_VM_STACK_OVERFLOW_FOR_INSN(cfp, margin) \
+    WHEN_VM_STACK_OVERFLOWED(cfp, (cfp)->sp, margin) vm_stack_overflow_for_insn()
+#else
+#define CHECK_VM_STACK_OVERFLOW_FOR_INSN(cfp, margin)
+#endif
+
+#endif /* RUBY_VM_EXEC_H */