* config/m68k/tm-linux.h (FRAME_SAVED_PC): Define as

[deliverable/binutils-gdb.git] / gdb / config / m68k / tm-delta68.h

diff --git a/gdb/config/m68k/tm-delta68.h b/gdb/config/m68k/tm-delta68.h
index 65694fc43dcbc22aff162400c3ea775cfe89dc7e..a38baea202055af476eba097ba0b58aef2cf3c08 100644 (file)
--- a/gdb/config/m68k/tm-delta68.h
+++ b/gdb/config/m68k/tm-delta68.h
@@ -1,29 +1,30 @@
 /* Target definitions for delta68.
-   Copyright 1993 Free Software Foundation, Inc.
+   Copyright 1993, 1994, 1998, 1999, 2000 Free Software Foundation, Inc.
 
-This file is part of GDB.
+   This file is part of GDB.
 
-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 of the License, or
-(at your option) any later version.
+   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 of the License, 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.
+   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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+   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.  */
+
+#include "regcache.h"
 
 /* Define BPT_VECTOR if it is different than the default.
    This is the vector number used by traps to indicate a breakpoint. */
 
 #define BPT_VECTOR 0x1
 
-#undef CPLUS_MARKER
-#define CPLUS_MARKER   '%'
 #define GCC_COMPILED_FLAG_SYMBOL "gcc_compiled%"
 #define GCC2_COMPILED_FLAG_SYMBOL "gcc2_compiled%"
 
@@ -32,6 +33,75 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 
 #define DECR_PC_AFTER_BREAK 0
 
-#define HAVE_68881
+/* Not sure what happens if we try to store this register, but
+   phdm@info.ucl.ac.be says we need this define.  */
+
+#define CANNOT_STORE_REGISTER(regno)   (regno == FPI_REGNUM)
+
+/* Extract from an array REGBUF containing the (raw) register state
+   a function return value of type TYPE, and copy that, in virtual format,
+   into VALBUF.  */
+
+/* When it returns a float/double value, use fp0 in sysV68.  */
+/* When it returns a pointer value, use a0 in sysV68.  */
+
+#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF)                       \
+  if (TYPE_CODE (TYPE) == TYPE_CODE_FLT)                               \
+    REGISTER_CONVERT_TO_VIRTUAL (FP0_REGNUM, TYPE,                     \
+                                &REGBUF[REGISTER_BYTE (FP0_REGNUM)],   \
+                                VALBUF);                               \
+  else                                                                 \
+    memcpy ((VALBUF),                                                  \
+           (char *) ((REGBUF) +                                        \
+                     (TYPE_CODE(TYPE) == TYPE_CODE_PTR ? 8 * 4 :       \
+                      (TYPE_LENGTH(TYPE) >= 4 ? 0 : 4 - TYPE_LENGTH(TYPE)))), \
+           TYPE_LENGTH(TYPE))
+
+/* Write into appropriate registers a function return value
+   of type TYPE, given in virtual format.  */
+
+/* When it returns a float/double value, use fp0 in sysV68.  */
+/* When it returns a pointer value, use a0 in sysV68.  */
+
+#define STORE_RETURN_VALUE(TYPE,VALBUF) \
+  if (TYPE_CODE (TYPE) == TYPE_CODE_FLT)                               \
+      {                                                                        \
+       char raw_buf[REGISTER_RAW_SIZE (FP0_REGNUM)];                   \
+       REGISTER_CONVERT_TO_RAW (TYPE, FP0_REGNUM, VALBUF, raw_buf);    \
+       write_register_bytes (REGISTER_BYTE (FP0_REGNUM),               \
+                             raw_buf, REGISTER_RAW_SIZE (FP0_REGNUM)); \
+      }                                                                        \
+  else                                                                 \
+    write_register_bytes ((TYPE_CODE(TYPE) == TYPE_CODE_PTR ? 8 * 4 : 0), \
+                         VALBUF, TYPE_LENGTH (TYPE))
+
+/* Return number of args passed to a frame.
+   Can return -1, meaning no way to tell.  */
+
+extern int delta68_frame_num_args (struct frame_info *fi);
+#define FRAME_NUM_ARGS(fi) (delta68_frame_num_args ((fi)))
+
+/* On M68040 versions of sysV68 R3V7.1, ptrace(PT_WRITE_I) does not clear
+   the processor's instruction cache as it should.  */
+#define CLEAR_INSN_CACHE()     clear_insn_cache()
 
 #include "m68k/tm-m68k.h"
+
+/* Extract from an array REGBUF containing the (raw) register state
+   the address in which a function should return its structure value,
+   as a CORE_ADDR (or an expression that can be used as one).  */
+
+#undef EXTRACT_STRUCT_VALUE_ADDRESS
+#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF)\
+       (*(CORE_ADDR *)((char*)(REGBUF) + 8 * 4))
+
+extern int delta68_in_sigtramp (CORE_ADDR pc, char *name);
+#define IN_SIGTRAMP(pc,name) delta68_in_sigtramp (pc, name)
+
+extern CORE_ADDR delta68_frame_saved_pc (struct frame_info *fi);
+#undef FRAME_SAVED_PC
+#define FRAME_SAVED_PC(fi) delta68_frame_saved_pc (fi)
+
+extern CORE_ADDR delta68_frame_args_address (struct frame_info *fi);
+#undef FRAME_ARGS_ADDRESS
+#define FRAME_ARGS_ADDRESS(fi) delta68_frame_args_address (fi)