+/* src/vm/jit/code.h - codeinfo struct for representing compiled code
+
+ 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
+
+ This file is part of CACAO.
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2, or (at
+ your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA.
+
+*/
+
+
#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 */
- int rplpointcount; /* number of replacement points */
-
- /* register allocation */
- u1 *regalloc; /* register index for each local */
- /* variable */
-
- /* 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
+#endif /* _CODE_H */
-/* vim: noet ts=4 sw=4
- */
+/*
+ * 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
+ * Emacs will automagically detect them.
+ * ---------------------------------------------------------------------
+ * Local variables:
+ * mode: c
+ * indent-tabs-mode: t
+ * c-basic-offset: 4
+ * tab-width: 4
+ * End:
+ * vim:noexpandtab:sw=4:ts=4:
+ */
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