/* src/vm/jit/dseg.c - data segment handling stuff
- Copyright (C) 1996-2005 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 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.
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., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA.
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA.
- Contact: cacao@complang.tuwien.ac.at
+ Contact: cacao@cacaojvm.org
Authors: Reinhard Grafl
Andreas Krall
Changes: Christian Thalinger
Joseph Wenninger
- $Id: dseg.c 4011 2005-12-30 14:16:49Z twisti $
+ $Id: dseg.c 4445 2006-02-05 15:26:34Z edwin $
*/
#include "vm/types.h"
+#include <assert.h>
#include "mm/memory.h"
#include "vm/jit/codegen-common.h"
}
-void dseg_adddata(codegendata *cd, u1 *mcodeptr)
-{
- dataref *dr;
-
- dr = DNEW(dataref);
-
- dr->datapos = mcodeptr - cd->mcodebase;
- dr->next = cd->datareferences;
-
- cd->datareferences = dr;
-}
-
-
/* dseg_addlinenumbertablesize *************************************************
XXX
}
+/* dseg_addlinenumber **********************************************************
+
+ Add a line number reference.
+
+ IN:
+ cd.............current codegen data
+ linenumber.....number of line that starts with the given mcodeptr
+ mcodeptr.......start mcodeptr of line
+
+*******************************************************************************/
+
void dseg_addlinenumber(codegendata *cd, u2 linenumber, u1 *mcodeptr)
{
linenumberref *lr;
}
+/* dseg_addlinenumber_inline_start *********************************************
+
+ Add a marker to the line number table indicating the start of an inlined
+ method body. (see doc/inlining_stacktrace.txt)
+
+ IN:
+ cd.............current codegen data
+ iptr...........the ICMD_INLINE_START instruction
+ mcodeptr.......start mcodeptr of inlined body
+
+*******************************************************************************/
+
+void dseg_addlinenumber_inline_start(codegendata *cd,
+ instruction *iptr,
+ u1 *mcodeptr)
+{
+ linenumberref *lr;
+
+ lr = DNEW(linenumberref);
+
+ lr->linenumber = (-2); /* marks start of inlined method */
+ lr->tablepos = 0;
+ lr->targetmpc = mcodeptr - cd->mcodebase;
+ lr->next = cd->linenumberreferences;
+
+ cd->linenumberreferences = lr;
+
+ iptr->target = mcodeptr; /* store for corresponding INLINE_END */
+}
+
+
+/* dseg_addlinenumber_inline_end ***********************************************
+
+ Add a marker to the line number table indicating the end of an inlined
+ method body. (see doc/inlining_stacktrace.txt)
+
+ IN:
+ cd.............current codegen data
+ iptr...........the ICMD_INLINE_END instruction
+
+ Note:
+ iptr->method must point to the inlined callee.
+
+*******************************************************************************/
+
+void dseg_addlinenumber_inline_end(codegendata *cd, instruction *iptr)
+{
+ linenumberref *lr;
+ linenumberref *prev;
+ instruction *inlinestart;
+
+ /* get the pointer to the corresponding ICMD_INLINE_START */
+ inlinestart = (instruction *)iptr->target;
+
+ assert(inlinestart);
+ assert(iptr->method);
+
+ lr = DNEW(linenumberref);
+
+ /* special entry containing the methodinfo * */
+ lr->linenumber = (-3) - iptr->line;
+ lr->tablepos = 0;
+ lr->targetmpc = (ptrint) iptr->method;
+ lr->next = cd->linenumberreferences;
+
+ prev = lr;
+ lr = DNEW(linenumberref);
+
+ /* end marker with PC of start of body */
+ lr->linenumber = (-1);
+ lr->tablepos = 0;
+ lr->targetmpc = (u1*)inlinestart->target - cd->mcodebase;
+ lr->next = prev;
+
+ cd->linenumberreferences = lr;
+}
+
+
/* dseg_createlinenumbertable **************************************************
Creates a line number table in the data segment from the created
}
+/* dseg_adddata ****************************************************************
+
+ Adds a data segment reference to the codegendata.
+
+*******************************************************************************/
+
+#if defined(__I386__) || defined(__X86_64__) || defined(__XDSPCORE__) || defined(ENABLE_INTRP)
+void dseg_adddata(codegendata *cd, u1 *mcodeptr)
+{
+ dataref *dr;
+
+ dr = DNEW(dataref);
+
+ dr->datapos = mcodeptr - cd->mcodebase;
+ dr->next = cd->datareferences;
+
+ cd->datareferences = dr;
+}
+#endif
+
+
+/* dseg_resolve_datareferences *************************************************
+
+ Resolve data segment references.
+
+*******************************************************************************/
+
+#if defined(__I386__) || defined(__X86_64__) || defined(__XDSPCORE__) || defined(ENABLE_INTRP)
+void dseg_resolve_datareferences(codegendata *cd, methodinfo *m)
+{
+ dataref *dr;
+
+ /* data segment references resolving */
+
+ for (dr = cd->datareferences; dr != NULL; dr = dr->next)
+ *((u1 **) (m->entrypoint + dr->datapos - SIZEOF_VOID_P)) = m->entrypoint;
+}
+#endif
+
+
/* dseg_display ****************************************************************
Displays the content of the methods' data segment.
* c-basic-offset: 4
* tab-width: 4
* End:
+ * vim:noexpandtab:sw=4:ts=4:
*/