-/* vm/jit/code.h - codeinfo struct for representing compiled code
+/* src/vm/jit/code.h - codeinfo struct for representing compiled code
- Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
+ Copyright (C) 1996-2005, 2006, 2007 R. Grafl, A. Krall, C. Kruegel,
C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
J. Wenninger, Institut f. Computersprachen - TU Wien
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
- Contact: cacao@cacaojvm.org
-
- Authors: Edwin Steiner
-
- Changes:
-
- $Id$
-
*/
#ifndef _CODE_H
#define _CODE_H
+/* forward typedefs ***********************************************************/
+
#include "config.h"
#include "vm/types.h"
-#include "vm/method.h"
+#include "toolbox/list.h"
+
+#include "vm/global.h"
+
#include "vm/jit/replace.h"
-/* A `codeinfo` represents a particular realization of a method in */
-/* machine code. */
+#include "vmcore/method.h"
+
+
+/* constants ******************************************************************/
+
+#define CODE_FLAG_INVALID 0x0001
+#define CODE_FLAG_LEAFMETHOD 0x0002
+
+
+/* codeinfo *******************************************************************
+
+ A codeinfo represents a particular realization of a method in
+ machine code.
+
+ ATTENTION: The methodinfo entry in the code-structure MUST have the
+ offset 0, otherwise we have a problem in our compiler stub. This is
+ checked with an assert in code_init().
+
+*******************************************************************************/
struct codeinfo {
- methodinfo *m; /* method this is a realization of */
- codeinfo *prev; /* previous codeinfo of this method*/
-
+ methodinfo *m; /* method this is a realization of */
+ codeinfo *prev; /* previous codeinfo of this method */
+
+ u4 codeflags; /* or of CODE_FLAG_ constants */
+
+ u1 optlevel; /* optimization level of this code */
+ s4 basicblockcount; /* number of basic blocks */
+
/* machine code */
- s4 mcodelength; /* length of generated machine code*/
- u1 *mcode; /* pointer to machine code */
- u1 *entrypoint; /* machine code entry point */
- bool isleafmethod; /* does method call subroutines */
-
- /* replacement */
- rplpoint *rplpoints; /* replacement points */
- s4 rplpointcount; /* number of replacement points */
- s2 *regalloc; /* register allocation info */
- s4 globalcount; /* number of global allocations */
- s4 regalloccount; /* number of total allocations */
-
- /* profiling */
- u4 frequency; /* number of method invocations */
- u4 *bbfrequency;
- s8 cycles; /* number of cpu cycles */
+ u1 *mcode; /* pointer to machine code */
+ u1 *entrypoint; /* machine code entry point */
+ s4 mcodelength; /* length of generated machine code */
+
+ /* patcher list */
+ list_t *patchers;
+
+ /* replacement */
+#if defined(ENABLE_REPLACEMENT)
+ rplpoint *rplpoints; /* replacement points */
+ rplalloc *regalloc; /* register allocation info */
+ s4 rplpointcount; /* number of replacement points */
+ s4 globalcount; /* number of global allocations */
+ s4 regalloccount; /* number of total allocations */
+ s4 memuse; /* number of arg + local slots */
+ s4 stackframesize; /* size of the stackframe in slots */
+ u1 savedintcount; /* number of callee saved int regs */
+ u1 savedfltcount; /* number of callee saved flt regs */
+# if defined(HAS_ADDRESS_REGISTER_FILE)
+ u1 savedadrcount; /* number of callee saved adr regs */
+# endif
+ u1 *savedmcode; /* saved code under patches */
+#endif
+
+#if defined(ENABLE_PROFILING)
+ u4 frequency; /* number of method invocations */
+ u4 *bbfrequency;
+ s8 cycles; /* number of cpu cycles */
+#endif
};
+
+/* macros *********************************************************************/
+
+#define CODE_IS_VALID(code) (!((code)->codeflags & CODE_FLAG_INVALID))
+#define CODE_IS_INVALID(code) ((code)->codeflags & CODE_FLAG_INVALID)
+#define CODE_IS_LEAFMETHOD(code) ((code)->codeflags & CODE_FLAG_LEAFMETHOD)
+
+#define CODE_SETFLAG_INVALID(code) \
+ ((code)->codeflags |= CODE_FLAG_INVALID)
+#define CODE_SETFLAG_LEAFMETHOD(code) \
+ ((code)->codeflags |= CODE_FLAG_LEAFMETHOD)
+
+
+/* function prototypes ********************************************************/
+
+bool code_init(void);
+
codeinfo *code_codeinfo_new(methodinfo *m);
void code_codeinfo_free(codeinfo *code);
+codeinfo *code_find_codeinfo_for_pc(u1 *pc);
+
+methodinfo *code_get_methodinfo_for_pv(u1 *pv);
+
+#if defined(ENABLE_REPLACEMENT)
+int code_get_sync_slot_count(codeinfo *code);
+#endif /* defined(ENABLE_REPLACEMENT) */
+
void code_free_code_of_method(methodinfo *m);
#endif /* _CODE_H */
+
/*
* These are local overrides for various environment variables in Emacs.
* Please do not remove this and leave it at the end of the file, where
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