/* src/vm/jit/mips/patcher.c - MIPS code patching functions
- 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
+ Copyright (C) 1996-2005, 2006, 2007, 2008
+ CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
This file is part of CACAO.
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
- $Id: patcher.c 8268 2007-08-07 13:24:43Z twisti $
-
*/
#include "vm/types.h"
#include "vm/jit/mips/codegen.h"
+#include "vm/jit/mips/md.h"
#include "mm/memory.h"
#include "native/native.h"
#include "vm/builtin.h"
-#include "vm/exceptions.h"
+#include "vm/class.h"
+#include "vm/field.h"
#include "vm/initialize.h"
+#include "vm/options.h"
+#include "vm/references.h"
+#include "vm/resolve.h"
#include "vm/jit/asmpart.h"
-#include "vm/jit/md.h"
#include "vm/jit/patcher-common.h"
-#include "vmcore/class.h"
-#include "vmcore/field.h"
-#include "vmcore/options.h"
-#include "vm/resolve.h"
-#include "vmcore/references.h"
-
#define PATCH_BACK_ORIGINAL_MCODE \
*((u4 *) pr->mpc) = (u4) pr->mcode; \
md_icacheflush((u1 *) pr->mpc, PATCHER_CALL_SIZE);
-/* patcher_initialize_class ****************************************************
+/* patcher_patch_code **********************************************************
- Initalizes a given classinfo pointer. This function does not patch
- any data.
+ Just patches back the original machine code.
*******************************************************************************/
-bool patcher_initialize_class(patchref_t *pr)
+void patcher_patch_code(patchref_t *pr)
{
- classinfo *c;
-
- /* get stuff from the stack */
-
- c = (classinfo *) pr->ref;
-
- /* check if the class is initialized */
-
- if (!(c->state & CLASS_INITIALIZED))
- if (!initialize_class(c))
- return false;
-
PATCH_BACK_ORIGINAL_MCODE;
-
- return true;
}
-/* patcher_resolve_class *****************************************************
-
- Initalizes a given classinfo pointer. This function does not patch
- any data.
-
-*******************************************************************************/
-
-#ifdef ENABLE_VERIFIER
-bool patcher_resolve_class(patchref_t *pr)
-{
- unresolved_class *uc;
-
- /* get stuff from the stack */
-
- uc = (unresolved_class *) pr->ref;
-
- /* resolve the class and check subtype constraints */
-
- if (!resolve_class_eager_no_access_check(uc))
- return false;
-
- PATCH_BACK_ORIGINAL_MCODE;
-
- return true;
-}
-#endif /* ENABLE_VERIFIER */
-
-
/* patcher_get_putstatic *******************************************************
Machine code:
/* check if the field's class is initialized */
- if (!(fi->class->state & CLASS_INITIALIZED))
- if (!initialize_class(fi->class))
+ if (!(fi->clazz->state & CLASS_INITIALIZED))
+ if (!initialize_class(fi->clazz))
return false;
PATCH_BACK_ORIGINAL_MCODE;
}
-/* patcher_resolve_native ******************************************************
-
- XXX
-
-*******************************************************************************/
-
-#if !defined(WITH_STATIC_CLASSPATH)
-bool patcher_resolve_native_function(patchref_t *pr)
-{
- methodinfo *m;
- u1 *datap;
- functionptr f;
-
- /* get stuff from the stack */
-
- m = (methodinfo *) pr->ref;
- datap = (u1 *) pr->datap;
-
- /* resolve native function */
-
- if (!(f = native_resolve_function(m)))
- return false;
-
- PATCH_BACK_ORIGINAL_MCODE;
-
- /* patch native function pointer */
-
- *((ptrint *) datap) = (ptrint) f;
-
- /* synchronize data cache */
-
- md_dcacheflush(datap, SIZEOF_VOID_P);
-
- return true;
-}
-#endif /* !defined(WITH_STATIC_CLASSPATH) */
-
-
/* patcher_invokestatic_special ************************************************
Machine code:
*((s4 *) (ra + 1 * 4)) |=
(s4) ((OFFSET(vftbl_t, interfacetable[0]) -
- sizeof(methodptr*) * m->class->index) & 0x0000ffff);
+ sizeof(methodptr*) * m->clazz->index) & 0x0000ffff);
/* patch method offset */
*((s4 *) (ra + 2 * 4)) |=
- (s4) ((sizeof(methodptr) * (m - m->class->methods)) & 0x0000ffff);
+ (s4) ((sizeof(methodptr) * (m - m->clazz->methods)) & 0x0000ffff);
/* synchronize instruction cache */