Remove tdesc stuff. Remove FRAME_CHAIN_COMBINE from all tm-*.h files,

since it was always defined exactly the same in all of them.

1 files changed, 3 insertions, 403 deletions

diff --git a/gdb/tm-delta88.h b/gdb/tm-delta88.h
index eacac69..7474b3e 100644
--- a/gdb/tm-delta88.h
+++ b/gdb/tm-delta88.h
@@ -1,4 +1,5 @@
-/* Copyright (C) 1986, 1987, 1988, 1989, 1990 Free Software Foundation, Inc.
+/* Target machine description for Motorola Delta 88 box, for GDB.
+   Copyright 1986, 1987, 1988, 1989, 1990, 1991 Free Software Foundation, Inc.
 
 This file is part of GDB.
 
@@ -16,408 +17,7 @@ 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.  */
 
-/* g++ support is not yet included.  */
-
-#define TARGET_BYTE_ORDER BIG_ENDIAN
-
-/* We cache information about saved registers in the frame structure,
-   to save us from having to re-scan function prologues every time
-   a register in a non-current frame is accessed.  */
-
-#define EXTRA_FRAME_INFO 	\
-	struct frame_saved_regs *fsr;	\
-	CORE_ADDR locals_pointer;	\
-	CORE_ADDR args_pointer;
-
-/* Zero the frame_saved_regs pointer when the frame is initialized,
-   so that FRAME_FIND_SAVED_REGS () will know to allocate and
-   initialize a frame_saved_regs struct the first time it is called.
-   Set the arg_pointer to -1, which is not valid; 0 and other values
-   indicate real, cached values.  */
-
-#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) \
-	init_extra_frame_info (fromleaf, fi)
-extern void init_extra_frame_info ();
-
-#define INIT_FRAME_PC(fromleaf, prev) \
-	init_frame_pc (fromleaf, prev)
-extern void init_frame_pc ();
-
-#define IEEE_FLOAT
-
-/* Define this if the C compiler puts an underscore at the front
-   of external names before giving them to the linker.  */
-
-#define NAMES_HAVE_UNDERSCORE
-
-/* Hook for read_relative_register_raw_bytes */
-
-#define READ_RELATIVE_REGISTER_RAW_BYTES
-
-/* 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.  */
-
-#define SKIP_PROLOGUE(frompc)   \
-	skip_prologue (frompc)
-extern CORE_ADDR skip_prologue ();
-
-/* The m88k kernel aligns all instructions on 4-byte boundaries.  The
-   kernel also uses the least significant two bits for its own hocus
-   pocus.  When gdb receives an address from the kernel, it needs to
-   preserve those right-most two bits, but gdb also needs to be careful
-   to realize that those two bits are not really a part of the address
-   of an instruction.  Shrug.  */
-
-#define ADDR_BITS_REMOVE(addr) ((addr) & ~3)
-#define ADDR_BITS_SET(addr) (((addr) | 0x00000002) - 4)
-
-/* 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) \
-  (ADDR_BITS_REMOVE (read_register (SRP_REGNUM)))
-
-/* Address of end of stack space (in core files).  */
-
-#define STACK_END_ADDR 0xF0000000
-
-/* Stack grows downward.  */
-
-#define INNER_THAN <
-
-/* Sequence of bytes for breakpoint instruction.  */
-
-/* instruction 0xF000D1FF is 'tb0 0,r0,511'
-   If Bit bit 0 of r0 is clear (always true),
-   initiate exception processing (trap).
- */
-#define BREAKPOINT {0xF0, 0x00, 0xD1, 0xFF}
-
-/* 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.  */
-/* 'jmp r1' or 'jmp.n r1' is used to return from a subroutine. */
-
-#define ABOUT_TO_RETURN(pc) (read_memory_integer (pc, 2) == 0xF800)
-
-/* Return 1 if P points to an invalid floating point value.
-   LEN is the length in bytes.  */
-
-#define INVALID_FLOAT(p, len) IEEE_isNAN(p,len)
-
-/* Say how long (ordinary) registers are.  */
-
-#define REGISTER_TYPE long
-
-/* Number of machine registers */
-
-#define NUM_REGS 38
-
-/* 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",\
-	"r13",\
-	"r14",\
-	"r15",\
-	"r16",\
-	"r17",\
-	"r18",\
-	"r19",\
-	"r20",\
-	"r21",\
-	"r22",\
-	"r23",\
-	"r24",\
-	"r25",\
-	"r26",\
-	"r27",\
-	"r28",\
-	"r29",\
-	"r30",\
-	"r31",\
-	"psr",\
-	"fpsr",\
-	"fpcr",\
-	"sxip",\
-	"snip",\
-	"sfip",\
-	"vbr",\
-	"dmt0",\
-	"dmd0",\
-	"dma0",\
-	"dmt1",\
-	"dmd1",\
-	"dma1",\
-	"dmt2",\
-	"dmd2",\
-	"dma2",\
-	"sr0",\
-	"sr1",\
-	"sr2",\
-	"sr3",\
-	"fpecr",\
-	"fphs1",\
-	"fpls1",\
-	"fphs2",\
-	"fpls2",\
-	"fppt",\
-	"fprh",\
-	"fprl",\
-	"fpit",\
-	"fpsr",\
-	"fpcr",\
-	};
-
-
-/* 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 SRP_REGNUM 1		/* Contains subroutine return pointer */
-#define RV_REGNUM 2		/* Contains simple return values */
-#define SRA_REGNUM 12		/* Contains address of struct return values */
-#define FP_REGNUM 31		/* Reg fetched to locate frame when pgm stops */
-#define SP_REGNUM 31		/* Contains address of top of stack */
-#define SXIP_REGNUM 35		/* Contains Shadow Execute Instruction Pointer */
-#define SNIP_REGNUM 36		/* Contains Shadow Next Instruction Pointer */
-#define PC_REGNUM SXIP_REGNUM	/* Program Counter */
-#define NPC_REGNUM SNIP_REGNUM	/* Next Program Counter */
-#define PSR_REGNUM 32           /* Processor Status Register */
-#define FPSR_REGNUM 33		/* Floating Point Status Register */
-#define FPCR_REGNUM 34		/* Floating Point Control Register */
-#define SFIP_REGNUM 37		/* Contains Shadow Fetched Intruction pointer */
-#define NNPC_REGNUM SFIP_REGNUM /* Next Next Program Counter */
-
-/* PSR status bit definitions.  */
-
-#define PSR_MODE		0x80000000
-#define PSR_BYTE_ORDER		0x40000000
-#define PSR_SERIAL_MODE		0x20000000
-#define PSR_CARRY		0x10000000
-#define PSR_SFU_DISABLE		0x000003f0
-#define PSR_SFU1_DISABLE	0x00000008
-#define PSR_MXM			0x00000004
-#define PSR_IND			0x00000002
-#define PSR_SFRZ		0x00000001
-
-/* BCS requires that the SXIP_REGNUM (or PC_REGNUM) contain the address
-   of the next instr to be executed when a breakpoint occurs.  Because
-   the kernel gets the next instr (SNIP_REGNUM), the instr in SNIP needs
-   to be put back into SFIP, and the instr in SXIP should be shifted
-   to SNIP */
-
-/* Are you sitting down?  It turns out that the 88K BCS (binary compatibility
-  standard) folks originally felt that the debugger should be responsible
-  for backing up the IPs, not the kernel (as is usually done).  Well, they
-  have reversed their decision, and in future releases our kernel will be
-  handling the backing up of the IPs.  So, eventually, we won't need to
-  do the SHIFT_INST_REGS stuff.  But, for now, since there are 88K systems out
-  there that do need the debugger to do the IP shifting, and since there
-  will be systems where the kernel does the shifting, the code is a little
-  more complex than perhaps it needs to be (we still go inside SHIFT_INST_REGS,
-  and if the shifting hasn't occurred then gdb goes ahead and shifts).  */
-
-#define SHIFT_INST_REGS
-
-/* Total amount of space needed to store our copies of the machine's
-   register state, the array `registers'.  */
-
-#define REGISTER_BYTES (NUM_REGS * sizeof(REGISTER_TYPE))
-
-/* Index within `registers' of the first byte of the space for
-   register N.  */
-
-#define REGISTER_BYTE(N) ((N)*sizeof(REGISTER_TYPE))
-
-/* Number of bytes of storage in the actual machine representation
-   for register N.  */
-
-#define REGISTER_RAW_SIZE(N) (sizeof(REGISTER_TYPE))
-
-/* Number of bytes of storage in the program's representation
-   for register N. */
-
-#define REGISTER_VIRTUAL_SIZE(N) (sizeof(REGISTER_TYPE))
-
-/* Largest value REGISTER_RAW_SIZE can have.  */
-
-#define MAX_REGISTER_RAW_SIZE (sizeof(REGISTER_TYPE))
-
-/* Largest value REGISTER_VIRTUAL_SIZE can have.
-/* Are FPS1, FPS2, FPR "virtual" regisers? */
-
-#define MAX_REGISTER_VIRTUAL_SIZE (sizeof(REGISTER_TYPE))
-
-/* Nonzero if register N requires conversion
-   from raw format to virtual format.  */
-
-#define REGISTER_CONVERTIBLE(N) (0)
-
-/* Convert data from raw format for register REGNUM
-   to virtual format for register REGNUM.  */
-
-#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO) {bcopy ((FROM), (TO), (sizeof(REGISTER_TYPE)));}
-
-/* Convert data from virtual format for register REGNUM
-   to raw format for register REGNUM.  */
-
-#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) {bcopy ((FROM), (TO), (sizeof(REGISTER_TYPE)));}
-
-/* Return the GDB type object for the "standard" data type
-   of data in register N.  */
-
-#define REGISTER_VIRTUAL_TYPE(N) (builtin_type_int)
-
-/* The 88k call/return conventions call for "small" values to be returned
-   into consecutive registers starting from r2.  */
-
-#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
-  bcopy (&(((char *)REGBUF)[REGISTER_BYTE(RV_REGNUM)]), (VALBUF), TYPE_LENGTH (TYPE))
-
-#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) (*(int *)(REGBUF))
-
-/* Write into appropriate registers a function return value
-   of type TYPE, given in virtual format.  */
-
-#define STORE_RETURN_VALUE(TYPE,VALBUF) \
-  write_register_bytes (2*sizeof(void*), (VALBUF), TYPE_LENGTH (TYPE))
-
-/* In COFF, if PCC says a parameter is a short or a char, do not
-   change it to int (it seems the convention is to change it). */
-
-#define BELIEVE_PCC_PROMOTION 1
-
-/* 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.
-
-   FRAME_CHAIN_COMBINE takes the chain pointer and the frame's nominal address
-   and produces the nominal address of the caller frame.
-
-   However, if FRAME_CHAIN_VALID returns zero,
-   it means the given frame is the outermost one and has no caller.
-   In that case, FRAME_CHAIN_COMBINE is not used.  */
-
-extern CORE_ADDR frame_chain ();
-extern int frame_chain_valid ();
-extern CORE_ADDR frame_chain_combine ();
-extern int frameless_function_invocation ();
-
-#define FRAME_CHAIN(thisframe) \
-	frame_chain (thisframe)
-
-#define FRAME_CHAIN_VALID(chain, thisframe)	\
-	frame_chain_valid (chain, thisframe)
-
-#define FRAME_CHAIN_COMBINE(chain, thisframe)	\
-	frame_chain_combine (chain, thisframe)
-
-#define	FRAMELESS_FUNCTION_INVOCATION(frame, fromleaf)	\
-	fromleaf = frameless_function_invocation (frame)
-
-/* Define other aspects of the stack frame.  */
-
-#define FRAME_SAVED_PC(FRAME)	\
-	frame_saved_pc (FRAME)
-extern CORE_ADDR frame_saved_pc ();
-
-#define FRAME_ARGS_ADDRESS(fi)	\
-	frame_args_address (fi)
-extern CORE_ADDR frame_args_address ();
-
-#define FRAME_LOCALS_ADDRESS(fi) \
-	frame_locals_address (fi)
-extern CORE_ADDR frame_locals_address ();
-
-/* Return number of args passed to a frame.
-   Can return -1, meaning no way to tell.  */
-
-#define FRAME_NUM_ARGS(numargs, fi)  ((numargs) = -1)
-
-/* 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.
-   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.  */
-
-/* On the 88k, parameter registers get stored into the so called "homing"
-   area.  This *always* happens when you compiled with GCC and use -g.
-   Also, (with GCC and -g) the saving of the parameter register values
-   always happens right within the function prologue code, so these register
-   values can generally be relied upon to be already copied into their
-   respective homing slots by the time you will normally try to look at
-   them (we hope).
-
-   Note that homing area stack slots are always at *positive* offsets from
-   the frame pointer.  Thus, the homing area stack slots for the parameter
-   registers (passed values) for a given function are actually part of the
-   frame area of the caller.  This is unusual, but it should not present
-   any special problems for GDB.
-
-   Note also that on the 88k, we are only interested in finding the
-   registers that might have been saved in memory.  This is a subset of
-   the whole set of registers because the standard calling sequence allows
-   the called routine to clobber many registers.
-
-   We could manage to locate values for all of the so called "preserved"
-   registers (some of which may get saved within any particular frame) but
-   that would require decoding all of the tdesc information.  Tht would be
-   nice information for GDB to have, but it is not strictly manditory if we
-   can live without the ability to look at values within (or backup to)
-   previous frames.
-*/
-
-#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
-        frame_find_saved_regs (frame_info, &frame_saved_regs)
-
-
-/* There is not currently a functioning way to call functions in the
-   inferior.  */
-
-/* But if there was this is where we'd put the call dummy.  */
-/* #define CALL_DUMMY_LOCATION AFTER_TEXT_END */
-
-/* When popping a frame on the 88k (say when doing a return command), the
-   calling function only expects to have the "preserved" registers restored.
-   Thus, those are the only ones that we even try to restore here.   */
-
-extern void pop_frame ();
-
-#define POP_FRAME pop_frame ()
+#include "tm-m88k.h"
 
 /* BCS is a standard for binary compatibility.  This machine uses it.  */
 #if !defined (BCS)