Replacing a bogus file with a semi-bogus one (sharing through devo).

1 files changed, 703 insertions, 146 deletions

diff --git a/gdb/config/fr30/tm-fr30.h b/gdb/config/fr30/tm-fr30.h
index 7a067d1..956febf 100644
--- a/gdb/config/fr30/tm-fr30.h
+++ b/gdb/config/fr30/tm-fr30.h
@@ -1,5 +1,4 @@
-/* Parameters for execution on a Mitsubishi fr30 processor.
-   Copyright 1996, 1997 Free Software Foundation, Inc. 
+/* Parameters for execution on a Fujitsu FR30 processor.
 
 This file is part of GDB.
 
@@ -17,106 +16,521 @@ 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.  */
 
-/* Used by mswin.  */
-#define TARGET_FR30 1
+#define FR30_GENREGS		16
+#define FR30_DEDICATEDREGS	8
+#define FR30_REGSIZE		4	/* bytes */
 
-/* mvs_check TARGET_BYTE_ORDER BIG_ENDIAN */
-#define TARGET_BYTE_ORDER BIG_ENDIAN
+#define NUM_REGS (FR30_GENREGS + FR30_DEDICATEDREGS)
+#define REGISTER_BYTES ((FR30_GENREGS + FR30_DEDICATEDREGS)*FR30_REGSIZE)
+
+/* Index within `registers' of the first byte of the space for
+   register N.  */
+#define REGISTER_BYTE(N) ((N) * FR30_REGSIZE)
 
-/* mvs_check REGISTER_NAMES */
+/* Initializer for an array of names of registers.
+   There should be NUM_REGS strings in this initializer.  */
 #define REGISTER_NAMES \
-{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
-  "r8", "r9", "r10", "r11", "r12", "fp", "lr", "sp", \
-  "psw", "cbr", "spi", "spu", "bpc", "pc", "accl", "acch", \
-    /*  "cond", "sm", "bsm", "ie", "bie", "bcarry",  */ \
-}
-/* mvs_check  NUM_REGS */
-#define NUM_REGS 			24
-
-/* mvs_check  REGISTER_SIZE */
-#define REGISTER_SIZE 			4
-/* mvs_check  MAX_REGISTER_RAW_SIZE */
-#define MAX_REGISTER_RAW_SIZE		4
-
-/* mvs_check  *_REGNUM */
-#define R0_REGNUM	0
-#define STRUCT_RETURN_REGNUM 0
-#define ARG0_REGNUM	0
-#define ARGLAST_REGNUM	3
-#define V0_REGNUM	0
-#define V1_REGNUM	1
-#define FP_REGNUM	13
-#define RP_REGNUM	14
-#define SP_REGNUM	15
-#define PSW_REGNUM	16
-#define CBR_REGNUM	17
-#define SPI_REGNUM	18
-#define SPU_REGNUM	19
-#define BPC_REGNUM	20
-#define PC_REGNUM	21
-#define ACCL_REGNUM	22
-#define ACCH_REGNUM	23
-
-/* mvs_check  REGISTER_BYTES */
-#define REGISTER_BYTES			(NUM_REGS * 4)
-
-/* mvs_check  REGISTER_VIRTUAL_TYPE */
-#define REGISTER_VIRTUAL_TYPE(REG)	builtin_type_int
-
-/* mvs_check  REGISTER_BYTE */
-#define REGISTER_BYTE(REG) 		((REG) * 4)
-/* mvs_check  REGISTER_VIRTUAL_SIZE */
-#define REGISTER_VIRTUAL_SIZE(REG) 	4
-/* mvs_check  REGISTER_RAW_SIZE */
-#define REGISTER_RAW_SIZE(REG)     	4
-
-/* mvs_check  MAX_REGISTER_VIRTUAL_SIZE */
-#define MAX_REGISTER_VIRTUAL_SIZE 	4
-
-/* mvs_check  BREAKPOINT */
-#define BREAKPOINT {0x10, 0xf1}
-
-/* mvs_no_check  FUNCTION_START_OFFSET */
+{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", \
+  "r9", "r10", "r11", "r12", "r13", "r14", "r15", \
+  "pc", "ps", "tbr", "rp", "ssp", "usp", "mdh", "mdl" }
+
+/* Offset from address of function to start of its code.
+   Zero on most machines.  */
 #define FUNCTION_START_OFFSET 0
 
-/* mvs_check  DECR_PC_AFTER_BREAK */
+/* Amount PC must be decremented by after a breakpoint.
+   This is often the number of bytes in BREAKPOINT
+   but not always.  */
+
 #define DECR_PC_AFTER_BREAK 0
 
-/* mvs_check  INNER_THAN */
+/* Stack grows downward.  */
+
 #define INNER_THAN <
 
-/* mvs_check  SAVED_PC_AFTER_CALL */
-#define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM)
+#define TARGET_BYTE_ORDER BIG_ENDIAN
 
-#ifdef __STDC__
+#define R4_REGNUM  4
+#define R7_REGNUM  7
+#define FP_REGNUM 14		/* Frame pointer */
+#define SP_REGNUM 15		/* Stack pointer */
+#define PC_REGNUM 16		/* Program counter */
+#define RP_REGNUM 19		/* Return pointer */
+
+#define FIRST_ARGREG	R4_REGNUM	/* first arg (or struct ret val addr) */
+#define LAST_ARGREG	R7_REGNUM	/* fourth (or third arg) */
+#define RETVAL_REG	R4_REGNUM	/* return vaue */
+
+/* Say how long (ordinary) registers are.  This is a piece of bogosity
+   used in push_word and a few other places; REGISTER_RAW_SIZE is the
+   real way to know how big a register is.  */
+#define REGISTER_SIZE FR30_REGSIZE
+
+/* Number of bytes of storage in the actual machine representation
+   for register N.  */
+#define REGISTER_RAW_SIZE(N) FR30_REGSIZE
+
+/* Largest value REGISTER_RAW_SIZE can have.  */
+#define MAX_REGISTER_RAW_SIZE FR30_REGSIZE 
+
+/* Number of bytes of storage in the program's representation
+   for register N.  */
+#define REGISTER_VIRTUAL_SIZE(N) REGISTER_RAW_SIZE(N)
+
+/* Largest value REGISTER_VIRTUAL_SIZE can have.  */
+#define MAX_REGISTER_VIRTUAL_SIZE FR30_REGSIZE
+
+extern void fr30_pop_frame PARAMS ((void));
+/* XXX do we need the parameter ? */
+#define POP_FRAME fr30_pop_frame()
+
+/* Number of bytes at start of arglist that are not really args.  */
+#define FRAME_ARGS_SKIP 0
+
+/* Return the GDB type object for the "standard" data type
+   of data in register N.  */
+#define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
+
+/* 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.  */
+#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
+    memcpy (VALBUF, REGBUF + REGISTER_BYTE(RETVAL_REG), TYPE_LENGTH (TYPE))
+
+/* 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).  */
+#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
+  extract_address (REGBUF + REGISTER_BYTE (RETVAL_REG), \
+		   REGISTER_RAW_SIZE (RETVAL_REG))
+
+
+#define FRAME_ARGS_ADDRESS(fi) (fi->frame)
+#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
+
+/* Return number of args passed to a frame.
+   Can return -1, meaning no way to tell.  */
+#define FRAME_NUM_ARGS(numargs, fi) (numargs = -1)
+
+#ifdef __STDC__		/* Forward decls for prototypes */
 struct frame_info;
 struct frame_saved_regs;
 struct type;
 struct value;
 #endif
 
+#define EXTRA_FRAME_INFO struct frame_saved_regs fsr;
+
+extern CORE_ADDR fr30_frame_chain PARAMS ((struct frame_info *fi));
+#define FRAME_CHAIN(fi) fr30_frame_chain (fi)
+
+extern CORE_ADDR fr30_frame_saved_pc   PARAMS ((struct frame_info *));
+#define FRAME_SAVED_PC(fi) (fr30_frame_saved_pc (fi))
+
+#define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM)
+
+extern CORE_ADDR fr30_skip_prologue PARAMS ((CORE_ADDR pc));
+#define SKIP_PROLOGUE(pc) pc = fr30_skip_prologue (pc)
+
+/* Write into appropriate registers a function return value
+   of type TYPE, given in virtual format.  */
+
+#define STORE_RETURN_VALUE(TYPE,VALBUF) \
+    write_register_bytes (0, VALBUF, TYPE_LENGTH (TYPE))
+
+/* Put here the code to store, into a struct frame_saved_regs,
+   the addresses of the saved registers of frame described by FRAME_INFO.
+   This includes special registers such as pc and fp saved in special
+   ways in the stack frame.  sp is even more special:
+   the address we return for it IS the sp for the next frame.  */
+#define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr
+
+/* Use INT #BREAKPOINT_INTNUM instruction for breakpoint */
+#define FR30_BREAKOP	0x1f	/* opcode, type D instruction */
+#define BREAKPOINT_INTNUM 9	/* one of the reserved traps */
+#define BREAKPOINT {FR30_BREAKOP, BREAKPOINT_INTNUM}
+
+
+ 
+
+
+
+
+
+#if(0) /* Z.R. */
+
+ARM example 
+
+#ifdef __STDC__		/* Forward decls for prototypes */
+struct type;
+struct value;
+#endif
+
+#define TARGET_BYTE_ORDER_SELECTABLE
+
+/* IEEE format floating point */
+
+#define IEEE_FLOAT
+
+/* FIXME: may need a floatformat_ieee_double_bigbyte_littleword format for
+   BIG_ENDIAN use. -fnf */
+
+#define TARGET_DOUBLE_FORMAT (target_byte_order == BIG_ENDIAN \
+			      ? &floatformat_ieee_double_big \
+			      : &floatformat_ieee_double_littlebyte_bigword)
+
+/* When reading symbols, we need to zap the low bit of the address, which
+   may be set to 1 for Thumb functions.  */
+
+#define SMASH_TEXT_ADDRESS(addr) ((addr) &= ~0x1)
+
+/* Remove useless bits from addresses in a running program.  */
+
+CORE_ADDR arm_addr_bits_remove PARAMS ((CORE_ADDR));
+
+#define ADDR_BITS_REMOVE(val) (arm_addr_bits_remove (val))
+
+/* Offset from address of function to start of its code.
+   Zero on most machines.  */
+
+#define FUNCTION_START_OFFSET 0
+
+/* Advance PC across any function entry prologue instructions
+   to reach some "real" code.  */
+
+extern CORE_ADDR arm_skip_prologue PARAMS ((CORE_ADDR pc));
+
+#define SKIP_PROLOGUE(pc) { pc = arm_skip_prologue (pc); }
+
+/* Immediately after a function call, return the saved pc.
+   Can't always go through the frames for this because on some machines
+   the new frame is not set up until the new function executes
+   some instructions.  */
+
+#define SAVED_PC_AFTER_CALL(frame) arm_saved_pc_after_call (frame)
+struct frame_info;
+extern CORE_ADDR arm_saved_pc_after_call PARAMS ((struct frame_info *));
+
+/* I don't know the real values for these.  */
+#define TARGET_UPAGES UPAGES
+#define TARGET_NBPG NBPG
+
+/* Address of end of stack space.  */
+
+#define STACK_END_ADDR (0x01000000 - (TARGET_UPAGES * TARGET_NBPG))
+
+/* Stack grows downward.  */
+
+#define INNER_THAN <
+
+/* Sequence of bytes for breakpoint instruction.  */
+
+/* !!!! if we're using RDP, then we're inserting breakpoints and storing
+   their handles instread of what was in memory.  It is nice that
+   this is the same size as a handle - otherwise remote-rdp will
+   have to change. */
+
+#define ARM_LE_BREAKPOINT {0x00,0x00,0x18,0xef} /* BKPT_SWI from <sys/ptrace.h> */
+#define ARM_BE_BREAKPOINT {0xef,0x18,0x00,0x00} /* BKPT_SWI from <sys/ptrace.h> */
+#define THUMB_LE_BREAKPOINT {0x18,0xdf}       /* swi 24 */
+#define THUMB_BE_BREAKPOINT {0xdf,0x18}       /* swi 24 */
+
+/* The following has been superseded by BREAKPOINT_FOR_PC, but
+   is defined merely to keep mem-break.c happy.  */
+#define LITTLE_BREAKPOINT ARM_LE_BREAKPOINT
+#define BIG_BREAKPOINT    ARM_BE_BREAKPOINT
+
+/* BREAKPOINT_FROM_PC uses the program counter value to determine whether a
+   16- or 32-bit breakpoint should be used.  It returns a pointer
+   to a string of bytes that encode a breakpoint instruction, stores
+   the length of the string to *lenptr, and adjusts the pc (if necessary) to
+   point to the actual memory location where the breakpoint should be
+   inserted.  */
+
+unsigned char * arm_breakpoint_from_pc PARAMS ((CORE_ADDR * pcptr, int * lenptr));
+#define BREAKPOINT_FROM_PC(pcptr, lenptr) arm_breakpoint_from_pc (pcptr, lenptr)
+
+/* Amount PC must be decremented by after a breakpoint.
+   This is often the number of bytes in BREAKPOINT
+   but not always.  */
+
+#define DECR_PC_AFTER_BREAK 0
+
+/* Nonzero if instruction at PC is a return instruction.  */
+
+#define ABOUT_TO_RETURN(pc) \
+      ((read_memory_integer(pc, 4) & 0x0fffffff == 0x01b0f00e) || \
+       (read_memory_integer(pc, 4) & 0x0ffff800 == 0x09eba800))
+
+/* code to execute to print interesting information about the
+ * floating point processor (if any)
+ * No need to define if there is nothing to do.
+ */
+#define FLOAT_INFO { arm_float_info (); }
+
+/* Say how long (ordinary) registers are.  This is a piece of bogosity
+   used in push_word and a few other places; REGISTER_RAW_SIZE is the
+   real way to know how big a register is.  */
+
+#define REGISTER_SIZE 4
+
+/* Number of machine registers */
+
+/* Note: I make a fake copy of the pc in register 25 (calling it ps) so
+   that I can clear the status bits from pc (register 15) */
+
+#define NUM_REGS 26
+
+/* Initializer for an array of names of registers.
+   There should be NUM_REGS strings in this initializer.  */
+
+#define ORIGINAL_REGISTER_NAMES \
+{ "a1", "a2", "a3", "a4", /*  0  1  2  3 */ \
+  "v1", "v2", "v3", "v4", /*  4  5  6  7 */ \
+  "v5", "v6", "sl", "fp", /*  8  9 10 11 */ \
+  "ip", "sp", "lr", "pc", /* 12 13 14 15 */ \
+  "f0", "f1", "f2", "f3", /* 16 17 18 19 */ \
+  "f4", "f5", "f6", "f7", /* 20 21 22 23 */ \
+  "fps","ps" }            /* 24 25       */
+
+/* These names are the ones which gcc emits, and 
+   I find them less confusing.  Toggle between them
+   using the `othernames' command. */
+
+#define ADDITIONAL_REGISTER_NAMES \
+{ "r0", "r1", "r2", "r3", /*  0  1  2  3 */ \
+  "r4", "r5", "r6", "r7", /*  4  5  6  7 */ \
+  "r8", "r9", "sl", "fp", /*  8  9 10 11 */ \
+  "ip", "sp", "lr", "pc", /* 12 13 14 15 */ \
+  "f0", "f1", "f2", "f3", /* 16 17 18 19 */ \
+  "f4", "f5", "f6", "f7", /* 20 21 22 23 */ \
+  "fps","ps" }            /* 24 25       */
+
+#define REGISTER_NAMES ADDITIONAL_REGISTER_NAMES
+#ifndef REGISTER_NAMES
+#define REGISTER_NAMES ORIGINAL_REGISTER_NAMES
+#endif
+
+/* Register numbers of various important registers.
+   Note that some of these values are "real" register numbers,
+   and correspond to the general registers of the machine,
+   and some are "phony" register numbers which are too large
+   to be actual register numbers as far as the user is concerned
+   but do serve to get the desired values when passed to read_register.  */
+
+#define A1_REGNUM 0		/* first integer-like argument */
+#define A4_REGNUM 3		/* last integer-like argument */
+#define AP_REGNUM 11
+#define FP_REGNUM 11		/* Contains address of executing stack frame */
+#define SP_REGNUM 13		/* Contains address of top of stack */
+#define LR_REGNUM 14		/* address to return to from a function call */
+#define PC_REGNUM 15		/* Contains program counter */
+#define F0_REGNUM 16		/* first floating point register */
+#define F3_REGNUM 19		/* last floating point argument register */
+#define F7_REGNUM 23		/* last floating point register */
+#define FPS_REGNUM 24		/* floating point status register */
+#define PS_REGNUM 25		/* Contains processor status */
+
+#define THUMB_FP_REGNUM 7	/* R7 is frame register on Thumb */
+
+#define ARM_NUM_ARG_REGS 	4
+#define ARM_LAST_ARG_REGNUM 	A4_REGNUM
+#define ARM_NUM_FP_ARG_REGS 	4
+#define ARM_LAST_FP_ARG_REGNUM	F3_REGNUM
+
+/* Instruction condition field values.  */
+#define INST_EQ		0x0
+#define INST_NE		0x1
+#define INST_CS		0x2
+#define INST_CC		0x3
+#define INST_MI		0x4
+#define INST_PL		0x5
+#define INST_VS		0x6
+#define INST_VC		0x7
+#define INST_HI		0x8
+#define INST_LS		0x9
+#define INST_GE		0xa
+#define INST_LT		0xb
+#define INST_GT		0xc
+#define INST_LE		0xd
+#define INST_AL		0xe
+#define INST_NV		0xf
+
+#define FLAG_N		0x80000000
+#define FLAG_Z		0x40000000
+#define FLAG_C		0x20000000
+#define FLAG_V		0x10000000
+
+
+
+/* Total amount of space needed to store our copies of the machine's
+   register state, the array `registers'.  */
+#define REGISTER_BYTES (16*4 + 12*8 + 4 + 4)
+
+/* Index within `registers' of the first byte of the space for
+   register N.  */
+
+#define REGISTER_BYTE(N) (((N) < F0_REGNUM) ? (N)*4 : \
+			  (((N) < PS_REGNUM) ? 16*4 + ((N) - 16)*12 : \
+			   16*4 + 8*12 + ((N) - FPS_REGNUM) * 4))
+
+/* Number of bytes of storage in the actual machine representation
+   for register N.  On the vax, all regs are 4 bytes.  */
+
+#define REGISTER_RAW_SIZE(N) (((N) < F0_REGNUM || (N) >= FPS_REGNUM) ? 4 : 12)
+
+/* Number of bytes of storage in the program's representation
+   for register N.  On the vax, all regs are 4 bytes.  */
+
+#define REGISTER_VIRTUAL_SIZE(N) (((N) < F0_REGNUM || (N) >= FPS_REGNUM) ? 4 : 8)
+
+/* Largest value REGISTER_RAW_SIZE can have.  */
+
+#define MAX_REGISTER_RAW_SIZE 12 
+
+/* Largest value REGISTER_VIRTUAL_SIZE can have.  */
+
+#define MAX_REGISTER_VIRTUAL_SIZE 8
+
+/* Nonzero if register N requires conversion
+   from raw format to virtual format.  */
+#define REGISTER_CONVERTIBLE(N) ((unsigned)(N) - F0_REGNUM < 8)
+
+/* Convert data from raw format for register REGNUM in buffer FROM
+   to virtual format with type TYPE in buffer TO.  */
+
+#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO) \
+{ \
+  double val; \
+  convert_from_extended ((FROM), & val); \
+  store_floating ((TO), TYPE_LENGTH (TYPE), val); \
+}
+
+/* Convert data from virtual format with type TYPE in buffer FROM
+   to raw format for register REGNUM in buffer TO.  */
+
+#define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO)	\
+{ \
+  double val = extract_floating ((FROM), TYPE_LENGTH (TYPE)); \
+  convert_to_extended (&val, (TO)); \
+}
+/* Return the GDB type object for the "standard" data type
+   of data in register N.  */
+
+#define REGISTER_VIRTUAL_TYPE(N) \
+ (((unsigned)(N) - F0_REGNUM) < 8 ? builtin_type_double : builtin_type_int)
+
+/* The system C compiler uses a similar structure return convention to gcc */
+
+#define USE_STRUCT_CONVENTION(gcc_p, type) (TYPE_LENGTH (type) > 4)
+
+/* Store the address of the place in which to copy the structure the
+   subroutine will return.  This is called from call_function. */
+
+#define STORE_STRUCT_RETURN(ADDR, SP) \
+  { write_register (0, (ADDR)); }
+
+/* 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.  */
+
+#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
+  if (TYPE_CODE (TYPE) == TYPE_CODE_FLT)				\
+    convert_from_extended (REGBUF + REGISTER_BYTE (F0_REGNUM), VALBUF);	\
+  else									\
+    memcpy (VALBUF, REGBUF, TYPE_LENGTH (TYPE))
+
+/* Write into appropriate registers a function return value
+   of type TYPE, given in virtual format.  */
+
+#define STORE_RETURN_VALUE(TYPE,VALBUF) \
+  if (TYPE_CODE (TYPE) == TYPE_CODE_FLT) {				\
+    char _buf[MAX_REGISTER_RAW_SIZE];					\
+    convert_to_extended (VALBUF, _buf); 					\
+    write_register_bytes (REGISTER_BYTE (F0_REGNUM), _buf, MAX_REGISTER_RAW_SIZE); \
+  } else								\
+    write_register_bytes (0, VALBUF, TYPE_LENGTH (TYPE))
+
+/* 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).  */
+
+#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) (*(int *)(REGBUF))
+
+/* Specify that for the native compiler variables for a particular
+   lexical context are listed after the beginning LBRAC instead of
+   before in the executables list of symbols.  */
+#define VARIABLES_INSIDE_BLOCK(desc, gcc_p) (!(gcc_p))
+
+
 /* Define other aspects of the stack frame. 
    We keep the offsets of all saved registers, 'cause we need 'em a lot!
-   We also keep the current size of the stack frame, and whether 
-   the frame pointer is valid (for frameless functions, and when we're
-   still in the prologue of a function with a frame) */
+   We also keep the current size of the stack frame, and the offset of
+   the frame pointer from the stack pointer (for frameless functions, and
+   when we're still in the prologue of a function with a frame) */
 
-/* mvs_check  EXTRA_FRAME_INFO */
 #define EXTRA_FRAME_INFO  	\
   struct frame_saved_regs fsr;	\
   int framesize;		\
-  int using_frame_pointer;
+  int frameoffset;		\
+  int framereg;
 
+extern void arm_init_extra_frame_info PARAMS ((struct frame_info *fi));
+#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) arm_init_extra_frame_info (fi)
 
-extern void fr30_init_extra_frame_info PARAMS ((struct frame_info *fi));
-/* mvs_check  INIT_EXTRA_FRAME_INFO */
-#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) fr30_init_extra_frame_info (fi)
-/* mvs_no_check  INIT_FRAME_PC */
-#define INIT_FRAME_PC		/* Not necessary */
+/* Return the frame address.  On ARM, it is R11; on Thumb it is R7.  */
+CORE_ADDR arm_target_read_fp PARAMS ((void));
+#define TARGET_READ_FP() arm_target_read_fp ()
+
+/* Describe the pointer in each stack frame to the previous stack frame
+   (its caller).  */
+
+/* FRAME_CHAIN takes a frame's nominal address
+   and produces the frame's chain-pointer.
+
+   However, if FRAME_CHAIN_VALID returns zero,
+   it means the given frame is the outermost one and has no caller.  */
+
+#define FRAME_CHAIN(thisframe) (CORE_ADDR) arm_frame_chain (thisframe)
+extern CORE_ADDR arm_frame_chain PARAMS ((struct frame_info *));
+
+#define LOWEST_PC 0x20  /* the first 0x20 bytes are the trap vectors. */
+
+#define FRAME_CHAIN_VALID(chain, thisframe) \
+  (chain != 0 && (FRAME_SAVED_PC (thisframe) >= LOWEST_PC))
+
+/* Define other aspects of the stack frame.  */
+
+/* A macro that tells us whether the function invocation represented
+   by FI does not have a frame on the stack associated with it.  If it
+   does not, FRAMELESS is set to 1, else 0.  */
+#define FRAMELESS_FUNCTION_INVOCATION(FI, FRAMELESS) \
+{							\
+  CORE_ADDR func_start, after_prologue;			\
+  func_start = (get_pc_function_start ((FI)->pc) +	\
+		FUNCTION_START_OFFSET);			\
+  after_prologue = func_start;				\
+  SKIP_PROLOGUE (after_prologue);			\
+  (FRAMELESS) = (after_prologue == func_start);		\
+}
+
+/* Saved Pc.  */
+
+#define FRAME_SAVED_PC(FRAME)	arm_frame_saved_pc (FRAME)
+extern CORE_ADDR arm_frame_saved_pc PARAMS ((struct frame_info *));
+
+#define FRAME_ARGS_ADDRESS(fi) (fi->frame)
+
+#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
+
+/* Return number of args passed to a frame.
+   Can return -1, meaning no way to tell.  */
+
+#define FRAME_NUM_ARGS(numargs, fi) (numargs = -1)
 
-extern void 
-fr30_frame_find_saved_regs PARAMS ((struct frame_info *fi, 
-				    struct frame_saved_regs *regaddr));
+/* Return number of bytes at start of arglist that are not really args.  */
+
+#define FRAME_ARGS_SKIP 0
 
 /* Put here the code to store, into a struct frame_saved_regs,
    the addresses of the saved registers of frame described by FRAME_INFO.
@@ -124,111 +538,254 @@ fr30_frame_find_saved_regs PARAMS ((struct frame_info *fi,
    ways in the stack frame.  sp is even more special:
    the address we return for it IS the sp for the next frame.  */
 
-/* mvs_check  FRAME_FIND_SAVED_REGS */
-#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs)	    \
-   fr30_frame_find_saved_regs(frame_info, &(frame_saved_regs))
+struct frame_saved_regs;
+struct frame_info;
+void frame_find_saved_regs PARAMS((struct frame_info *fi,
+				   struct frame_saved_regs *fsr));
 
-extern CORE_ADDR fr30_frame_chain PARAMS ((struct frame_info *fi));
-/* mvs_check  FRAME_CHAIN */
-#define FRAME_CHAIN(fi) 		fr30_frame_chain (fi)
+#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
+ arm_frame_find_saved_regs (frame_info, &(frame_saved_regs));
 
-#define FRAME_CHAIN_VALID(fp, frame)	generic_frame_chain_valid (fp, frame)
+
+/* Things needed for making the inferior call functions.  */
 
-extern CORE_ADDR fr30_find_callers_reg PARAMS ((struct frame_info *fi, 
-						int regnum));
-extern CORE_ADDR fr30_frame_saved_pc PARAMS((struct frame_info *));
-/* mvs_check  FRAME_SAVED_PC */
-#define FRAME_SAVED_PC(fi)		fr30_frame_saved_pc (fi)
+#define PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \
+    sp = arm_push_arguments ((nargs), (args), (sp), (struct_return), (struct_addr))
+extern CORE_ADDR
+arm_push_arguments PARAMS ((int, struct value **, CORE_ADDR, int, CORE_ADDR));
 
-/* mvs_check  EXTRACT_RETURN_VALUE */
-#define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
-  memcpy ((VALBUF), \
-	  (char *)(REGBUF) + REGISTER_BYTE (V0_REGNUM) + \
-	  ((TYPE_LENGTH (TYPE) > 4 ? 8 : 4) - TYPE_LENGTH (TYPE)), \
-	  TYPE_LENGTH (TYPE))
+/* Push an empty stack frame, to record the current PC, etc.  */
 
-/* mvs_check  STORE_RETURN_VALUE */
-#define STORE_RETURN_VALUE(TYPE, VALBUF) \
-  write_register_bytes(REGISTER_BYTE (V0_REGNUM) + \
-		       ((TYPE_LENGTH (TYPE) > 4 ? 8:4) - TYPE_LENGTH (TYPE)),\
-		       (VALBUF), TYPE_LENGTH (TYPE));
+void arm_push_dummy_frame PARAMS ((void));
 
-extern CORE_ADDR fr30_skip_prologue PARAMS ((CORE_ADDR pc));
-/* mvs_check  SKIP_PROLOGUE */
-#define SKIP_PROLOGUE(pc) pc = fr30_skip_prologue (pc)
+#define PUSH_DUMMY_FRAME arm_push_dummy_frame ()
 
-/* mvs_no_check  FRAME_ARGS_SKIP */
-#define FRAME_ARGS_SKIP 0
+/* Discard from the stack the innermost frame, restoring all registers.  */
 
-/* mvs_no_check  FRAME_ARGS_ADDRESS */
-#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
-/* mvs_no_check  FRAME_LOCALS_ADDRESS */
-#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
-/* mvs_no_check  FRAME_NUM_ARGS */
-#define FRAME_NUM_ARGS(val, fi) ((val) = -1)
+void arm_pop_frame PARAMS ((void));
 
-#define COERCE_FLOAT_TO_DOUBLE 1
+#define POP_FRAME arm_pop_frame ()
 
-#define TARGET_WRITE_SP fr30_write_sp
+/* This sequence of words is the instructions
 
+     mov 	lr,pc
+     mov	pc,r4
+     swi	bkpt_swi
 
+   Note this is 12 bytes.  */
 
+#define CALL_DUMMY {0xe1a0e00f, 0xe1a0f004, 0xef180000}
 
+#define CALL_DUMMY_START_OFFSET 0  /* Start execution at beginning of dummy */
 
+#define CALL_DUMMY_BREAKPOINT_OFFSET arm_call_dummy_breakpoint_offset()
+extern int arm_call_dummy_breakpoint_offset PARAMS ((void));
 
-/* struct passing and returning stuff */
-#define STORE_STRUCT_RETURN(STRUCT_ADDR, SP)	\
-	write_register (0, STRUCT_ADDR)
+/* Insert the specified number of args and function address
+   into a call sequence of the above form stored at DUMMYNAME.  */
 
-#define USE_STRUCT_CONVENTION(GCC_P, TYPE) \
-	(TYPE_LENGTH (TYPE) > 8)
+#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
+   arm_fix_call_dummy (dummyname, pc, fun, nargs, args, type, gcc_p)
 
-#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
-  extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \
-		   REGISTER_RAW_SIZE (V0_REGNUM))
+void arm_fix_call_dummy PARAMS ((char *dummy, CORE_ADDR pc, CORE_ADDR fun,
+				 int nargs, struct value **args,
+				 struct type *type, int gcc_p));
 
-#define REG_STRUCT_HAS_ADDR(gcc_p,type)     (TYPE_LENGTH (type) > 8)
+CORE_ADDR arm_get_next_pc PARAMS ((CORE_ADDR));
 
+/* Functions for dealing with Thumb call thunks.  */
+#define IN_SOLIB_CALL_TRAMPOLINE(pc, name)	arm_in_call_stub (pc, name)
+#define SKIP_TRAMPOLINE_CODE(pc)		arm_skip_stub (pc)
+extern int arm_in_call_stub PARAMS ((CORE_ADDR pc,  char *name));
+extern CORE_ADDR arm_skip_stub PARAMS ((CORE_ADDR pc));
 
-/* generic dummy frame stuff */
+/* Function to determine whether MEMADDR is in a Thumb function.  */
+extern int arm_pc_is_thumb PARAMS ((bfd_vma memaddr));
 
-#define PUSH_DUMMY_FRAME             generic_push_dummy_frame ()
-#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP)
+/* Function to determine whether MEMADDR is in a call dummy called from
+   a Thumb function.  */
+extern int arm_pc_is_thumb_dummy PARAMS ((bfd_vma memaddr));
 
+/* Macros for setting and testing a bit in a minimal symbol that
+   marks it as Thumb function.  The MSB of the minimal symbol's
+   "info" field is used for this purpose. This field is already
+   being used to store the symbol size, so the assumption is
+   that the symbol size cannot exceed 2^31.
+ 
+   COFF_MAKE_MSYMBOL_SPECIAL
+   ELF_MAKE_MSYMBOL_SPECIAL	tests whether the COFF or ELF symbol corresponds 
+                        to a thumb function, and sets a "special" bit in a
+                        minimal symbol to indicate that it does
+   MSYMBOL_SET_SPECIAL	actually sets the "special" bit
+   MSYMBOL_IS_SPECIAL   tests the "special" bit in a minimal symbol
+   MSYMBOL_SIZE         returns the size of the minimal symbol, i.e.
+                        the "info" field with the "special" bit masked out
+*/
+ 
+extern int coff_sym_is_thumb(int val);
+#define MSYMBOL_SET_SPECIAL(msym) \
+    MSYMBOL_INFO (msym) = (char *) (((long) MSYMBOL_INFO (msym)) | 0x80000000)
+#define MSYMBOL_IS_SPECIAL(msym) \
+  (((long) MSYMBOL_INFO (msym) & 0x80000000) != 0)
+#define MSYMBOL_SIZE(msym) \
+  ((long) MSYMBOL_INFO (msym) & 0x7fffffff)
 
-/* target-specific dummy_frame stuff */
+/* Thumb symbol are of type STT_LOPROC, (synonymous with STT_ARM_TFUNC) */
+#define ELF_MAKE_MSYMBOL_SPECIAL(sym,msym) \
+ { if(ELF_ST_TYPE(((elf_symbol_type *)(sym))->internal_elf_sym.st_info) == STT_LOPROC) \
+	MSYMBOL_SET_SPECIAL(msym); }
+  
+#define COFF_MAKE_MSYMBOL_SPECIAL(val,msym) \
+ { if(coff_sym_is_thumb(val)) MSYMBOL_SET_SPECIAL(msym); }
 
-extern struct frame_info *fr30_pop_frame PARAMS ((struct frame_info *frame));
-/* mvs_check  POP_FRAME */
-#define POP_FRAME fr30_pop_frame (get_current_frame ())
 
-/* mvs_no_check  STACK_ALIGN */
-/* #define STACK_ALIGN(x) ((x + 3) & ~3) */
+V850 example
 
-extern CORE_ADDR fr30_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR));
-extern CORE_ADDR fr30_push_arguments PARAMS ((int nargs, 
-					      struct value **args, 
-					      CORE_ADDR sp,
-					      unsigned char struct_return,
-					      CORE_ADDR struct_addr));
 
+#define TARGET_BYTE_ORDER BIG_ENDIAN
 
+#define NUM_REGS 66
 
-/* mvs_no_check  PUSH_ARGUMENTS */
-#define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
-  (SP) = fr30_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)
+#define REGISTER_NAMES \
+{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
+  "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \
+  "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \
+  "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", \
+    \
+  "eipc", "eipsw", "fepc", "fepsw", "ecr", "psw", "sr6", "sr7", \
+  "sr8", "sr9", "sr10", "sr11", "sr12", "sr13", "sr14", "sr15", \
+  "sr16", "sr17", "sr18", "sr19", "sr20", "sr21", "sr22", "sr23", \
+  "sr24", "sr25", "sr26", "sr27", "sr28", "sr29", "sr30", "sr31", \
+    \
+  "pc", "fp" }
+
+#define REGISTER_BYTES (NUM_REGS * 4)
+
+#define REGISTER_SIZE 4
+#define MAX_REGISTER_RAW_SIZE 4
+
+#define R0_REGNUM 0
+#define R1_REGNUM 1
+#define SAVE1_START_REGNUM 2
+#define SAVE1_END_REGNUM 2
+#define SP_REGNUM 3
+#define ARG0_REGNUM 6
+#define ARGLAST_REGNUM 9
+#define V0_REGNUM 10
+#define V1_REGNUM 11
+#define R12_REGNUM 12
+#define SAVE2_START_REGNUM 20
+#define SAVE2_END_REGNUM 29
+#define EP_REGNUM 30
+#define SAVE3_START_REGNUM 31
+#define SAVE3_END_REGNUM 31
+#define RP_REGNUM 31
+#define PS_REGNUM 37
+#define PC_REGNUM 64
+#define FP_REGNUM 65
+#define FP_RAW_REGNUM 29
+
+#define TARGET_READ_FP() read_register (FP_RAW_REGNUM)
+#define TARGET_WRITE_FP(VAL) write_register (FP_REGNUM, (VAL))
+
+#define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
+
+#define REGISTER_BYTE(REG) ((REG) * 4)
+#define REGISTER_VIRTUAL_SIZE(REG) 4
+#define REGISTER_RAW_SIZE(REG) 4
+
+#define MAX_REGISTER_VIRTUAL_SIZE 4
+
+#define BREAKPOINT {0x40, 0xF8} /* little-ended */
 
-#define PUSH_RETURN_ADDRESS(PC, SP)      fr30_push_return_address (PC, SP)
+#define FUNCTION_START_OFFSET 0
 
-/* override the standard get_saved_register function with 
-   one that takes account of generic CALL_DUMMY frames */
-#define GET_SAVED_REGISTER
+#define DECR_PC_AFTER_BREAK 0
+
+#define INNER_THAN <
+
+#define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM)
+
+#ifdef __STDC__
+struct frame_info;
+struct frame_saved_regs;
+struct type;
+struct value;
+#endif
+
+#define EXTRA_FRAME_INFO struct frame_saved_regs fsr;
+
+extern void fr30_init_extra_frame_info PARAMS ((struct frame_info *fi));
+#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) fr30_init_extra_frame_info (fi)
+#define INIT_FRAME_PC		/* Not necessary */
+
+extern void fr30_frame_find_saved_regs PARAMS ((struct frame_info *fi, struct frame_saved_regs *regaddr));
+#define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr
+
+extern CORE_ADDR fr30_frame_chain PARAMS ((struct frame_info *fi));
+#define FRAME_CHAIN(fi) fr30_frame_chain (fi)
+#define FRAME_CHAIN_VALID(FP, FI)	generic_frame_chain_valid (FP, FI)
+
+extern CORE_ADDR fr30_find_callers_reg PARAMS ((struct frame_info *fi, int regnum));
+extern CORE_ADDR fr30_frame_saved_pc   PARAMS ((struct frame_info *));
+#define FRAME_SAVED_PC(FI) (fr30_frame_saved_pc (FI))
+
+#define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
+  memcpy (VALBUF, REGBUF + REGISTER_BYTE (V0_REGNUM), TYPE_LENGTH (TYPE))
+
+#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
+  extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \
+		   REGISTER_RAW_SIZE (V0_REGNUM))
+
+#define STORE_RETURN_VALUE(TYPE, VALBUF) \
+  write_register_bytes(REGISTER_BYTE (V0_REGNUM), VALBUF, TYPE_LENGTH (TYPE));
+
+extern CORE_ADDR fr30_skip_prologue PARAMS ((CORE_ADDR pc));
+#define SKIP_PROLOGUE(pc) pc = fr30_skip_prologue (pc)
+
+#define FRAME_ARGS_SKIP 0
+
+#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
+#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
+#define FRAME_NUM_ARGS(val, fi) ((val) = -1)
+
+extern void fr30_pop_frame PARAMS ((void));
+#define POP_FRAME fr30_pop_frame()
 
 #define USE_GENERIC_DUMMY_FRAMES
 #define CALL_DUMMY                   {0}
-#define CALL_DUMMY_LENGTH            (0)
 #define CALL_DUMMY_START_OFFSET      (0)
 #define CALL_DUMMY_BREAKPOINT_OFFSET (0)
-#define FIX_CALL_DUMMY(DUMMY1, STARTADDR, FUNADDR, NARGS, ARGS, TYPE, GCCP)
 #define CALL_DUMMY_LOCATION          AT_ENTRY_POINT
+#define FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP)
 #define CALL_DUMMY_ADDRESS()         entry_point_address ()
+extern CORE_ADDR fr30_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR));
+#define PUSH_RETURN_ADDRESS(PC, SP)  fr30_push_return_address (PC, SP)
+
+
+#define PUSH_DUMMY_FRAME	generic_push_dummy_frame ()
+
+extern CORE_ADDR
+fr30_push_arguments PARAMS ((int nargs, struct value **args, CORE_ADDR sp,
+			     unsigned char struct_return,
+			     CORE_ADDR struct_addr));
+#define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
+  (SP) = fr30_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)
+
+#define STORE_STRUCT_RETURN(STRUCT_ADDR, SP)
+
+
+#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP)
+
+#define USE_STRUCT_CONVENTION(GCC_P, TYPE) \
+  	(TYPE_NFIELDS (TYPE) > 1 || TYPE_LENGTH (TYPE) > 4)
+
+/* override the default get_saved_register function with
+   one that takes account of generic CALL_DUMMY frames */
+#define GET_SAVED_REGISTER
+
+/* Define this for Wingdb */
+
+#define TARGET_FR30
+
+#endif /* Z.R. */