Initial creation of sourceware repositorygdb-4_18-branchpoint

1 files changed, 103 insertions, 0 deletions

diff --git a/gdb/config/m68k/tm-delta68.h b/gdb/config/m68k/tm-delta68.h
new file mode 100644
index 0000000..5965bb5
--- /dev/null
+++ b/gdb/config/m68k/tm-delta68.h
@@ -0,0 +1,103 @@
+/* Target definitions for delta68.
+   Copyright 1993, 1994, 1998 Free Software Foundation, Inc.
+
+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 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+/* 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
+
+#define GCC_COMPILED_FLAG_SYMBOL "gcc_compiled%"
+#define GCC2_COMPILED_FLAG_SYMBOL "gcc2_compiled%"
+
+/* Amount PC must be decremented by after a breakpoint.
+   On the Delta, the kernel decrements it for us.  */
+
+#define DECR_PC_AFTER_BREAK 0
+
+/* 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.  */
+
+#define FRAME_NUM_ARGS(val, fi)  \
+{ register CORE_ADDR pc = FRAME_SAVED_PC (fi);			\
+  register int insn = 0177777 & read_memory_integer (pc, 2);	\
+  val = 0;							\
+  if (insn == 0047757 || insn == 0157374)  /* lea W(sp),sp or addaw #W,sp */ \
+    val = read_memory_integer (pc + 2, 2);			\
+  else if ((insn & 0170777) == 0050217 /* addql #N, sp */	\
+	   || (insn & 0170777) == 0050117)  /* addqw */		\
+    { val = (insn >> 9) & 7; if (val == 0) val = 8; }		\
+  else if (insn == 0157774) /* addal #WW, sp */			\
+    val = read_memory_integer (pc + 2, 4);			\
+  val >>= 2; }
+
+/* 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))