OpenCores
URL https://opencores.org/ocsvn/or1k/or1k/trunk

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  • This comparison shows the changes necessary to convert path 
    /or1k/trunk/gdb-5.0/gdb/config/a29k
    from Rev 107 to Rev 1765
    ↔ Reverse comparison
  •

Rev 107 → Rev 1765

/a29k-kern.mt
0,0 → 1,13
# Target: Remote AMD 29000 that runs Unix kernel on NYU Ultra3 processor board
 
# This builds a gdb that should run on a host (we use sun3os4) that
# then communicates over the serial line to either an Adapt or MiniMon,
# for use in debugging Unix kernels.
# As compared to ordinary remote 29K debugging, this changes the register
# numbering a bit, to hold kernel regs, and adds support for looking at
# the upage.
 
TDEPFILES= a29k-tdep.o remote-mm.o remote-adapt.o
TM_FILE= tm-ultra3.h
 
MT_CFLAGS = -DKERNEL_DEBUGGING -DNO_HIF_SUPPORT
/vx29k.mt
0,0 → 1,4
# Target: AMD 29k running VxWorks
TDEPFILES= a29k-tdep.o remote-vx.o remote-vx29k.o xdr_ld.o xdr_ptrace.o xdr_rdb.o
TM_FILE= tm-vx29k.h
MT_CFLAGS = -DNO_HIF_SUPPORT
/xm-ultra3.h
0,0 → 1,53
/* Host definitions for GDB running on an a29k NYU Ultracomputer
Copyright (C) 1986, 1987, 1989, 1991 Free Software Foundation, Inc.
Contributed by David Wood (wood@lab.ultra.nyu.edu).
 
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. */
 
/* Here at NYU we have what we call an ULTRA3 PE board. So
ifdefs for ULTRA3 are my doing. At this point in time,
I don't know of any other Unixi running on the a29k. */
 
#define HOST_BYTE_ORDER BIG_ENDIAN
 
#define HAVE_WAIT_STRUCT
 
#ifndef L_SET
#define L_SET 0 /* set the seek pointer */
#define L_INCR 1 /* increment the seek pointer */
#define L_XTND 2 /* extend the file size */
#endif
 
#ifndef O_RDONLY
#define O_RDONLY 0
#define O_WRONLY 1
#define O_RDWR 2
#endif
 
#ifndef F_OK
#define R_OK 4
#define W_OK 2
#define X_OK 1
#define F_OK 0
#endif
 
/* System doesn't provide siginterrupt(). */
#define NO_SIGINTERRUPT
 
/* System uses a `short' to hold a process group ID. */
#define SHORT_PGRP
/a29k-udi.mt
0,0 → 1,5
# Target: AMD 29000 on EB29K board over a serial line
TDEPFILES= a29k-tdep.o remote-udi.o udip2soc.o udr.o udi2go32.o
TM_FILE= tm-a29k.h
 
MT_CFLAGS = $(HOST_IPC)
/a29k.mt
0,0 → 1,5
# Target: AMD 29000
TDEPFILES= a29k-tdep.o remote-eb.o remote-adapt.o
TM_FILE= tm-a29k.h
 
MT_CFLAGS = -DNO_HIF_SUPPORT
/tm-vx29k.h
0,0 → 1,227
/* Target machine description for VxWorks on the 29k, for GDB, the GNU debugger.
Copyright 1994, 1999 Free Software Foundation, Inc.
Contributed by Cygnus Support.
 
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. */
 
#include "a29k/tm-a29k.h"
#include "tm-vxworks.h"
 
/* Number of registers in a ptrace_getregs call. */
 
#define VX_NUM_REGS (NUM_REGS)
 
/* Number of registers in a ptrace_getfpregs call. */
 
/* #define VX_SIZE_FPREGS */
 
/* This is almost certainly the wrong place for this: */
#define LR2_REGNUM 34
 
/* Vxworks has its own CALL_DUMMY since it manages breakpoints in the kernel */
 
#undef CALL_DUMMY
 
/* Replace the breakpoint instruction in the CALL_DUMMY with a nop.
For Vxworks, the breakpoint is set and deleted by calls to
CALL_DUMMY_BREAK_SET and CALL_DUMMY_BREAK_DELETE. */
 
#if TARGET_BYTE_ORDER == HOST_BYTE_ORDER
#define CALL_DUMMY {0x0400870f,\
0x36008200|(MSP_HW_REGNUM), \
0x15000040|(MSP_HW_REGNUM<<8)|(MSP_HW_REGNUM<<16), \
0x03ff80ff, 0x02ff80ff, 0xc8008080, 0x70400101, 0x70400101}
#else /* Byte order differs. */
#define CALL_DUMMY {0x0f870004,\
0x00820036|(MSP_HW_REGNUM << 24), \
0x40000015|(MSP_HW_REGNUM<<8)|(MSP_HW_REGNUM<<16), \
0xff80ff03, 0xff80ff02, 0x808000c8, 0x01014070, 0x01014070}
#endif /* Byte order differs. */
 
 
/* For the basic CALL_DUMMY definitions, see "tm-29k.h." We use the
same CALL_DUMMY code, but define FIX_CALL_DUMMY (and related macros)
locally to handle remote debugging of VxWorks targets. The difference
is in the setting and clearing of the breakpoint at the end of the
CALL_DUMMY code fragment; under VxWorks, we can't simply insert a
breakpoint instruction into the code, since that would interfere with
the breakpoint management mechanism on the target.
Note that CALL_DUMMY is a piece of code that is used to call any C function
thru VxGDB */
 
/* The offset of the instruction within the CALL_DUMMY code where we
want the inferior to stop after the function call has completed.
call_function_by_hand () sets a breakpoint here (via CALL_DUMMY_BREAK_SET),
which POP_FRAME later deletes (via CALL_DUMMY_BREAK_DELETE). */
 
#define CALL_DUMMY_STOP_OFFSET (7 * 4)
 
/* The offset of the first instruction of the CALL_DUMMY code fragment
relative to the frame pointer for a dummy frame. This is equal to
the size of the CALL_DUMMY plus the arg_slop area size (see the diagram
in "tm-29k.h"). */
/* PAD : the arg_slop area size doesn't appear to me to be useful since, the
call dummy code no longer modify the msp. See below. This must be checked. */
 
#define CALL_DUMMY_OFFSET_IN_FRAME (CALL_DUMMY_LENGTH + 16 * 4)
 
/* Insert the specified number of args and function address
into a CALL_DUMMY sequence stored at DUMMYNAME, replace the third
instruction (add msp, msp, 16*4) with a nop, and leave the final nop.
We can't keep using a CALL_DUMMY that modify the msp since, for VxWorks,
CALL_DUMMY is stored in the Memory Stack. Adding 16 words to the msp
would then make possible for the inferior to overwrite the CALL_DUMMY code,
thus creating a lot of trouble when exiting the inferior to come back in
a CALL_DUMMY code that no longer exists... Furthermore, ESF are also stored
from the msp in the memory stack. If msp is set higher than the dummy code,
an ESF may clobber this code. */
 
#if TARGET_BYTE_ORDER == BIG_ENDIAN
#define NOP_INSTR 0x70400101
#else /* Target is little endian */
#define NOP_INSTR 0x01014070
#endif
 
#undef FIX_CALL_DUMMY
#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
{ \
*(int *)((char *)dummyname + 8) = NOP_INSTR; \
STUFF_I16((char *)dummyname + CONST_INSN, fun); \
STUFF_I16((char *)dummyname + CONST_INSN + 4, fun >> 16); \
}
 
/* For VxWorks, CALL_DUMMY must be stored in the stack of the task that is
being debugged and executed "in the context of" this task */
 
#undef CALL_DUMMY_LOCATION
#define CALL_DUMMY_LOCATION ON_STACK
 
/* Set or delete a breakpoint at the location within a CALL_DUMMY code
fragment where we want the target program to stop after the function
call is complete. CALL_DUMMY_ADDR is the address of the first
instruction in the CALL_DUMMY. DUMMY_FRAME_ADDR is the value of the
frame pointer in the dummy frame.
 
NOTE: in the both of the following definitions, we take advantage of
knowledge of the implementation of the target breakpoint operation,
in that we pass a null pointer as the second argument. It seems
reasonable to assume that any target requiring the use of
CALL_DUMMY_BREAK_{SET,DELETE} will not store the breakpoint
shadow contents in GDB; in any case, this assumption is vaild
for all VxWorks-related targets. */
 
#define CALL_DUMMY_BREAK_SET(call_dummy_addr) \
target_insert_breakpoint ((call_dummy_addr) + CALL_DUMMY_STOP_OFFSET, \
(char *) 0)
 
#define CALL_DUMMY_BREAK_DELETE(dummy_frame_addr) \
target_remove_breakpoint ((dummy_frame_addr) - (CALL_DUMMY_OFFSET_IN_FRAME \
- CALL_DUMMY_STOP_OFFSET), \
(char *) 0)
 
/* Return nonzero if the pc is executing within a CALL_DUMMY frame. */
 
#define PC_IN_CALL_DUMMY(pc, sp, frame_address) \
((pc) >= (sp) \
&& (pc) <= (sp) + CALL_DUMMY_OFFSET_IN_FRAME + CALL_DUMMY_LENGTH)
 
/* Defining this prevents us from trying to pass a structure-valued argument
to a function called via the CALL_DUMMY mechanism. This is not handled
properly in call_function_by_hand (), and the fix might require re-writing
the CALL_DUMMY handling for all targets (at least, a clean solution
would probably require this). Arguably, this should go in "tm-29k.h"
rather than here. */
 
#define STRUCT_VAL_ARGS_UNSUPPORTED
 
#define BKPT_OFFSET (7 * 4)
#define BKPT_INSTR 0x72500101
 
#undef FIX_CALL_DUMMY
#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
{\
STUFF_I16((char *)dummyname + CONST_INSN, fun);\
STUFF_I16((char *)dummyname + CONST_INSN + 4, fun >> 16);\
*(int *)((char *)dummyname + BKPT_OFFSET) = BKPT_INSTR;\
}
 
/* Offsets into jmp_buf. They are derived from VxWorks' REG_SET struct
(see VxWorks' setjmp.h). Note that Sun2, Sun3 and SunOS4 and VxWorks have
different REG_SET structs, hence different layouts for the jmp_buf struct.
Only JB_PC is needed for getting the saved PC value. */
 
#define JB_ELEMENT_SIZE 4 /* size of each element in jmp_buf */
#define JB_PC 3 /* offset of pc (pc1) in jmp_buf */
 
/* Figure out where the longjmp will land. We expect that we have just entered
longjmp and haven't yet setup the stack frame, so the args are still in the
output regs. lr2 (LR2_REGNUM) points at the jmp_buf structure from which we
extract the pc (JB_PC) that we will land at. The pc is copied into ADDR.
This routine returns true on success */
 
#define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR)
extern int get_longjmp_target PARAMS ((CORE_ADDR *));
 
/* VxWorks adjusts the PC after a breakpoint has been hit. */
 
#undef DECR_PC_AFTER_BREAK
#define DECR_PC_AFTER_BREAK 0
 
/* Do whatever promotions are appropriate on a value being returned
from a function. VAL is the user-supplied value, and FUNC_TYPE
is the return type of the function if known, else 0.
 
For the Am29k, as far as I understand, if the function return type is known,
cast the value to that type; otherwise, ensure that integer return values
fill all of gr96.
 
This definition really belongs in "tm-29k.h", since it applies
to most Am29K-based systems; but once moved into that file, it might
need to be redefined for all Am29K-based targets that also redefine
STORE_RETURN_VALUE. For now, to be safe, we define it here. */
 
#define PROMOTE_RETURN_VALUE(val, func_type) \
do { \
if (func_type) \
val = value_cast (func_type, val); \
if ((TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_INT \
|| TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_ENUM) \
&& TYPE_LENGTH (VALUE_TYPE (val)) < REGISTER_RAW_SIZE (0)) \
val = value_cast (builtin_type_int, val); \
} while (0)
 
extern int vx29k_frame_chain_valid PARAMS ((CORE_ADDR, struct frame_info *));
#define FRAME_CHAIN_VALID(chain, thisframe) vx29k_frame_chain_valid (chain, thisframe)
 
extern CORE_ADDR frame_saved_call_site ();
 
#undef PREPARE_TO_INIT_FRAME_INFO
#define PREPARE_TO_INIT_FRAME_INFO(fci) do { \
long current_msp = read_register (MSP_REGNUM); \
if (PC_IN_CALL_DUMMY (fci->pc, current_msp, 0)) \
{ \
fci->rsize = DUMMY_FRAME_RSIZE; \
fci->msize = 0; \
fci->saved_msp = \
read_register_stack_integer (fci->frame + DUMMY_FRAME_RSIZE - 4, 4); \
fci->flags |= (TRANSPARENT|MFP_USED); \
return; \
} \
} while (0)
/nm-ultra3.h
0,0 → 1,27
/* Host definitions for GDB running on an a29k NYU Ultracomputer
Copyright (C) 1986, 1987, 1989, 1991, 1992 Free Software Foundation, Inc.
Contributed by David Wood (wood@lab.ultra.nyu.edu).
 
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. */
 
/* If we ever *do* end up using the standard fetch_inferior_registers,
this is the right value for U_REGS_OFFSET. */
#define U_REGS_OFFSET 0
 
/* Override copies of {fetch,store}_inferior_registers in infptrace.c. */
#define FETCH_INFERIOR_REGISTERS
/ultra3.mt
0,0 → 1,6
# Target: AMD 29000 running Unix on New York University processor board
TDEPFILES= a29k-tdep.o
TM_FILE= tm-ultra3.h
 
# SYM1 is some OS they have.
MT_CFLAGS = -DSYM1
/tm-a29k.h
0,0 → 1,716
/* Parameters for target machine AMD 29000, for GDB, the GNU debugger.
Copyright 1990, 1991, 1993, 1994 Free Software Foundation, Inc.
Contributed by Cygnus Support. Written by Jim Kingdon.
 
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. */
 
/* Parameters for an EB29K (a board which plugs into a PC and is
accessed through EBMON software running on the PC, which we
use as we'd use a remote stub (see remote-eb.c).
 
If gdb is ported to other a29k machines/systems, the
machine/system-specific parts should be removed from this file (a
la tm-m68k.h). */
 
/* Byte order is configurable, but this machine runs big-endian. */
#define TARGET_BYTE_ORDER BIG_ENDIAN
 
/* Floating point uses IEEE representations. */
#define IEEE_FLOAT
 
/* Recognize our magic number. */
#define BADMAG(x) ((x).f_magic != 0572)
 
/* 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(pc) (a29k_skip_prologue (pc))
CORE_ADDR a29k_skip_prologue ();
 
/* Immediately after a function call, return the saved pc.
Can't 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) ((frame->flags & TRANSPARENT_FRAME) \
? read_register (TPC_REGNUM) \
: read_register (LR0_REGNUM))
 
/* Stack grows downward. */
 
#define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
 
/* Stack must be aligned on 32-bit boundaries when synthesizing
function calls. */
 
#define STACK_ALIGN(ADDR) (((ADDR) + 3) & ~3)
 
/* Sequence of bytes for breakpoint instruction. */
/* ASNEQ 0x50, gr1, gr1
The trap number 0x50 is chosen arbitrarily.
We let the command line (or previously included files) override this
setting. */
#ifndef BREAKPOINT
#if TARGET_BYTE_ORDER == BIG_ENDIAN
#define BREAKPOINT {0x72, 0x50, 0x01, 0x01}
#else /* Target is little-endian. */
#define BREAKPOINT {0x01, 0x01, 0x50, 0x72}
#endif /* Target is little-endian. */
#endif /* BREAKPOINT */
 
/* 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
 
/* 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
 
/* Allow the register declarations here to be overridden for remote
kernel debugging. */
#if !defined (REGISTER_NAMES)
 
/* Number of machine registers */
 
#define NUM_REGS 205
 
/* Initializer for an array of names of registers.
There should be NUM_REGS strings in this initializer.
 
FIXME, add floating point registers and support here.
 
Also note that this list does not attempt to deal with kernel
debugging (in which the first 32 registers are gr64-gr95). */
 
#define REGISTER_NAMES \
{"gr96", "gr97", "gr98", "gr99", "gr100", "gr101", "gr102", "gr103", "gr104", \
"gr105", "gr106", "gr107", "gr108", "gr109", "gr110", "gr111", "gr112", \
"gr113", "gr114", "gr115", "gr116", "gr117", "gr118", "gr119", "gr120", \
"gr121", "gr122", "gr123", "gr124", "gr125", "gr126", "gr127", \
"lr0", "lr1", "lr2", "lr3", "lr4", "lr5", "lr6", "lr7", "lr8", "lr9", \
"lr10", "lr11", "lr12", "lr13", "lr14", "lr15", "lr16", "lr17", "lr18", \
"lr19", "lr20", "lr21", "lr22", "lr23", "lr24", "lr25", "lr26", "lr27", \
"lr28", "lr29", "lr30", "lr31", "lr32", "lr33", "lr34", "lr35", "lr36", \
"lr37", "lr38", "lr39", "lr40", "lr41", "lr42", "lr43", "lr44", "lr45", \
"lr46", "lr47", "lr48", "lr49", "lr50", "lr51", "lr52", "lr53", "lr54", \
"lr55", "lr56", "lr57", "lr58", "lr59", "lr60", "lr61", "lr62", "lr63", \
"lr64", "lr65", "lr66", "lr67", "lr68", "lr69", "lr70", "lr71", "lr72", \
"lr73", "lr74", "lr75", "lr76", "lr77", "lr78", "lr79", "lr80", "lr81", \
"lr82", "lr83", "lr84", "lr85", "lr86", "lr87", "lr88", "lr89", "lr90", \
"lr91", "lr92", "lr93", "lr94", "lr95", "lr96", "lr97", "lr98", "lr99", \
"lr100", "lr101", "lr102", "lr103", "lr104", "lr105", "lr106", "lr107", \
"lr108", "lr109", "lr110", "lr111", "lr112", "lr113", "lr114", "lr115", \
"lr116", "lr117", "lr118", "lr119", "lr120", "lr121", "lr122", "lr123", \
"lr124", "lr125", "lr126", "lr127", \
"AI0", "AI1", "AI2", "AI3", "AI4", "AI5", "AI6", "AI7", "AI8", "AI9", \
"AI10", "AI11", "AI12", "AI13", "AI14", "AI15", "FP", \
"bp", "fc", "cr", "q", \
"vab", "ops", "cps", "cfg", "cha", "chd", "chc", "rbp", "tmc", "tmr", \
"pc0", "pc1", "pc2", "mmu", "lru", "fpe", "inte", "fps", "exo", "gr1", \
"alu", "ipc", "ipa", "ipb" }
 
/*
* Converts an sdb register number to an internal gdb register number.
* Currently under epi, gr96->0...gr127->31...lr0->32...lr127->159, or...
* gr64->0...gr95->31, lr0->32...lr127->159.
*/
#define SDB_REG_TO_REGNUM(value) \
(((value) >= 96 && (value) <= 127) ? ((value) - 96) : \
((value) >= 128 && (value) <= 255) ? ((value) - 128 + LR0_REGNUM) : \
(value))
 
/*
* Provide the processor register numbers of some registers that are
* expected/written in instructions that might change under different
* register sets. Namely, gcc can compile (-mkernel-registers) so that
* it uses gr64-gr95 in stead of gr96-gr127.
*/
#define MSP_HW_REGNUM 125 /* gr125 */
#define RAB_HW_REGNUM 126 /* gr126 */
 
/* Convert Processor Special register #x to REGISTER_NAMES register # */
#define SR_REGNUM(x) \
((x) < 15 ? VAB_REGNUM + (x) \
: (x) >= 128 && (x) < 131 ? IPC_REGNUM + (x) - 128 \
: (x) == 131 ? Q_REGNUM \
: (x) == 132 ? ALU_REGNUM \
: (x) >= 133 && (x) < 136 ? BP_REGNUM + (x) - 133 \
: (x) >= 160 && (x) < 163 ? FPE_REGNUM + (x) - 160 \
: (x) == 164 ? EXO_REGNUM \
: (error ("Internal error in SR_REGNUM"), 0))
#define GR96_REGNUM 0
 
/* Define the return register separately, so it can be overridden for
kernel procedure calling conventions. */
#define RETURN_REGNUM GR96_REGNUM
#define GR1_REGNUM 200
/* This needs to be the memory stack pointer, not the register stack pointer,
to make call_function work right. */
#define SP_REGNUM MSP_REGNUM
#define FP_REGNUM 33 /* lr1 */
 
/* Return register for transparent calling convention (gr122). */
#define TPC_REGNUM (122 - 96 + GR96_REGNUM)
 
/* Large Return Pointer (gr123). */
#define LRP_REGNUM (123 - 96 + GR96_REGNUM)
 
/* Static link pointer (gr124). */
#define SLP_REGNUM (124 - 96 + GR96_REGNUM)
 
/* Memory Stack Pointer (gr125). */
#define MSP_REGNUM (125 - 96 + GR96_REGNUM)
 
/* Register allocate bound (gr126). */
#define RAB_REGNUM (126 - 96 + GR96_REGNUM)
 
/* Register Free Bound (gr127). */
#define RFB_REGNUM (127 - 96 + GR96_REGNUM)
 
/* Register Stack Pointer. */
#define RSP_REGNUM GR1_REGNUM
#define LR0_REGNUM 32
#define BP_REGNUM 177
#define FC_REGNUM 178
#define CR_REGNUM 179
#define Q_REGNUM 180
#define VAB_REGNUM 181
#define OPS_REGNUM (VAB_REGNUM + 1)
#define CPS_REGNUM (VAB_REGNUM + 2)
#define CFG_REGNUM (VAB_REGNUM + 3)
#define CHA_REGNUM (VAB_REGNUM + 4)
#define CHD_REGNUM (VAB_REGNUM + 5)
#define CHC_REGNUM (VAB_REGNUM + 6)
#define RBP_REGNUM (VAB_REGNUM + 7)
#define TMC_REGNUM (VAB_REGNUM + 8)
#define TMR_REGNUM (VAB_REGNUM + 9)
#define NPC_REGNUM (VAB_REGNUM + 10) /* pc0 */
#define PC_REGNUM (VAB_REGNUM + 11) /* pc1 */
#define PC2_REGNUM (VAB_REGNUM + 12)
#define MMU_REGNUM (VAB_REGNUM + 13)
#define LRU_REGNUM (VAB_REGNUM + 14)
#define FPE_REGNUM (VAB_REGNUM + 15)
#define INTE_REGNUM (VAB_REGNUM + 16)
#define FPS_REGNUM (VAB_REGNUM + 17)
#define EXO_REGNUM (VAB_REGNUM + 18)
/* gr1 is defined above as 200 = VAB_REGNUM + 19 */
#define ALU_REGNUM (VAB_REGNUM + 20)
#define PS_REGNUM ALU_REGNUM
#define IPC_REGNUM (VAB_REGNUM + 21)
#define IPA_REGNUM (VAB_REGNUM + 22)
#define IPB_REGNUM (VAB_REGNUM + 23)
 
#endif /* !defined(REGISTER_NAMES) */
 
/* Total amount of space needed to store our copies of the machine's
register state, the array `registers'. */
#define REGISTER_BYTES (NUM_REGS * 4)
 
/* Index within `registers' of the first byte of the space for
register N. */
#define REGISTER_BYTE(N) ((N)*4)
 
/* Number of bytes of storage in the actual machine representation
for register N. */
 
/* All regs are 4 bytes. */
 
#define REGISTER_RAW_SIZE(N) (4)
 
/* Number of bytes of storage in the program's representation
for register N. */
 
/* All regs are 4 bytes. */
 
#define REGISTER_VIRTUAL_SIZE(N) (4)
 
/* Largest value REGISTER_RAW_SIZE can have. */
 
#define MAX_REGISTER_RAW_SIZE (4)
 
/* Largest value REGISTER_VIRTUAL_SIZE can have. */
 
#define MAX_REGISTER_VIRTUAL_SIZE (4)
 
/* Return the GDB type object for the "standard" data type
of data in register N. */
 
#define REGISTER_VIRTUAL_TYPE(N) \
(((N) == PC_REGNUM || (N) == LRP_REGNUM || (N) == SLP_REGNUM \
|| (N) == MSP_REGNUM || (N) == RAB_REGNUM || (N) == RFB_REGNUM \
|| (N) == GR1_REGNUM || (N) == FP_REGNUM || (N) == LR0_REGNUM \
|| (N) == NPC_REGNUM || (N) == PC2_REGNUM) \
? lookup_pointer_type (builtin_type_void) : builtin_type_int)
/* Store the address of the place in which to copy the structure the
subroutine will return. This is called from call_function. */
/* On the a29k the LRP points to the part of the structure beyond the first
16 words. */
#define STORE_STRUCT_RETURN(ADDR, SP) \
write_register (LRP_REGNUM, (ADDR) + 16 * 4);
 
/* Should call_function allocate stack space for a struct return? */
/* On the a29k objects over 16 words require the caller to allocate space. */
extern use_struct_convention_fn a29k_use_struct_convention;
#define USE_STRUCT_CONVENTION(gcc_p, type) a29k_use_struct_convention (gcc_p, type)
 
/* 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) \
{ \
int reg_length = TYPE_LENGTH (TYPE); \
if (reg_length > 16 * 4) \
{ \
reg_length = 16 * 4; \
read_memory (*((int *)(REGBUF) + LRP_REGNUM), (VALBUF) + 16 * 4, \
TYPE_LENGTH (TYPE) - 16 * 4); \
} \
memcpy ((VALBUF), ((int *)(REGBUF))+RETURN_REGNUM, reg_length); \
}
 
/* Write into appropriate registers a function return value
of type TYPE, given in virtual format. */
 
#define STORE_RETURN_VALUE(TYPE,VALBUF) \
{ \
int reg_length = TYPE_LENGTH (TYPE); \
if (reg_length > 16 * 4) \
{ \
reg_length = 16 * 4; \
write_memory (read_register (LRP_REGNUM), \
(char *)(VALBUF) + 16 * 4, \
TYPE_LENGTH (TYPE) - 16 * 4); \
} \
write_register_bytes (REGISTER_BYTE (RETURN_REGNUM), (char *)(VALBUF), \
TYPE_LENGTH (TYPE)); \
}
/* *INDENT-OFF* */
/* The a29k user's guide documents well what the stacks look like.
But what isn't so clear there is how this interracts with the
symbols, or with GDB.
In the following saved_msp, saved memory stack pointer (which functions
as a memory frame pointer), means either
a register containing the memory frame pointer or, in the case of
functions with fixed size memory frames (i.e. those who don't use
alloca()), the result of the calculation msp + msize.
 
LOC_ARG, LOC_LOCAL - For GCC, these are relative to saved_msp.
For high C, these are relative to msp (making alloca impossible).
LOC_REGISTER, LOC_REGPARM - The register number is the number at the
time the function is running (after the prologue), or in the case
of LOC_REGPARM, may be a register number in the range 160-175.
 
The compilers do things like store an argument into memory, and then put out
a LOC_ARG for it, or put it into global registers and put out a
LOC_REGPARM. Thus is it important to execute the first line of
code (i.e. the line of the open brace, i.e. the prologue) of a function
before trying to print arguments or anything.
 
The following diagram attempts to depict what is going on in memory
(see also the _a29k user's guide_) and also how that interacts with
GDB frames. We arbitrarily pick fci->frame to point the same place
as the register stack pointer; since we set it ourself in
INIT_EXTRA_FRAME_INFO, and access it only through the FRAME_*
macros, it doesn't really matter exactly how we
do it. However, note that FRAME_FP is used in two ways in GDB:
(1) as a "magic cookie" which uniquely identifies frames (even over
calls to the inferior), (2) (in PC_IN_CALL_DUMMY [ON_STACK])
as the value of SP_REGNUM before the dummy frame was pushed. These
two meanings would be incompatible for the a29k if we defined
CALL_DUMMY_LOCATION == ON_STACK (but we don't, so don't worry about it).
Also note that "lr1" below, while called a frame pointer
in the user's guide, has only one function: To determine whether
registers need to be filled in the function epilogue.
 
Consider the code:
< call bar>
loc1: . . .
bar: sub gr1,gr1,rsize_b
. . .
add mfp,msp,0
sub msp,msp,msize_b
. . .
< call foo >
loc2: . . .
foo: sub gr1,gr1,rsize_f
. . .
add mfp,msp,0
sub msp,msp,msize_f
. . .
loc3: < suppose the inferior stops here >
 
memory stack register stack
| | |____________|
| | |____loc1____|
+------->|___________| | | ^
| | ^ | | locals_b | |
| | | | |____________| |
| | | | | | | rsize_b
| | | msize_b | | args_to_f | |
| | | | |____________| |
| | | | |____lr1_____| V
| | V | |____loc2____|<----------------+
| +--->|___________|<---------mfp | ^ |
| | | ^ | | locals_f | | |
| | | | msize_f | |____________| | |
| | | | | | | | rsize_f |
| | | V | | args | | |
| | |___________|<msp |____________| | |
| | |_____lr1____| V |
| | |___garbage__| <- gr1 <----+ |
| | | |
| | | |
| | pc=loc3 | |
| | | |
| | | |
| | frame cache | |
| | |_________________| | |
| | |rsize=rsize_b | | |
| | |msize=msize_b | | |
+---|--------saved_msp | | |
| |frame------------------------------------|---+
| |pc=loc2 | |
| |_________________| |
| |rsize=rsize_f | |
| |msize=msize_f | |
+--------saved_msp | |
|frame------------------------------------+
|pc=loc3 |
|_________________|
 
So, is that sufficiently confusing? Welcome to the 29000.
Notes:
* The frame for foo uses a memory frame pointer but the frame for
bar does not. In the latter case the saved_msp is
computed by adding msize to the saved_msp of the
next frame.
* msize is in the frame cache only for high C's sake. */
/* *INDENT-ON* */
 
 
void read_register_stack ();
long read_register_stack_integer ();
#define FRAME_INIT_SAVED_REGS(fi) /*no-op */
 
#define EXTRA_FRAME_INFO \
CORE_ADDR saved_msp; \
unsigned int rsize; \
unsigned int msize; \
unsigned char flags;
 
/* Bits for flags in EXTRA_FRAME_INFO */
#define TRANSPARENT_FRAME 0x1 /* This is a transparent frame */
#define MFP_USED 0x2 /* A memory frame pointer is used */
 
/* Because INIT_FRAME_PC gets passed fromleaf, that's where we init
not only ->pc and ->frame, but all the extra stuff, when called from
get_prev_frame, that is. */
#define INIT_EXTRA_FRAME_INFO(fromleaf, fci) init_extra_frame_info(fci)
void init_extra_frame_info ();
 
#define INIT_FRAME_PC(fromleaf, fci) init_frame_pc(fromleaf, fci)
void init_frame_pc ();
 
/* FRAME_CHAIN takes a FRAME
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. */
 
/* On the a29k, the nominal address of a frame is the address on the
register stack of the return address (the one next to the incoming
arguments, not down at the bottom so nominal address == stack pointer).
 
GDB expects "nominal address" to equal contents of FP_REGNUM,
at least when it comes time to create the innermost frame.
However, that doesn't work for us, so when creating the innermost
frame we set ->frame ourselves in INIT_EXTRA_FRAME_INFO. */
 
/* These are mostly dummies for the a29k because INIT_FRAME_PC
sets prev->frame instead. */
/* If rsize is zero, we must be at end of stack (or otherwise hosed).
If we don't check rsize, we loop forever if we see rsize == 0. */
#define FRAME_CHAIN(thisframe) \
((thisframe)->rsize == 0 \
? 0 \
: (thisframe)->frame + (thisframe)->rsize)
 
/* Determine if the frame has a 'previous' and back-traceable frame. */
#define FRAME_IS_UNCHAINED(frame) ((frame)->flags & TRANSPARENT_FRAME)
 
/* Find the previous frame of a transparent routine.
* For now lets not try and trace through a transparent routine (we might
* have to assume that all transparent routines are traps).
*/
#define FIND_PREV_UNCHAINED_FRAME(frame) 0
 
/* Define other aspects of the stack frame. */
 
/* An expression that tells us whether the function invocation represented
by FI does not have a frame on the stack associated with it. */
#define FRAMELESS_FUNCTION_INVOCATION(FI) \
(frameless_look_for_prologue (FI))
 
/* Saved pc (i.e. return address). */
#define FRAME_SAVED_PC(fraim) \
(read_register_stack_integer ((fraim)->frame + (fraim)->rsize, 4))
 
/* Local variables (i.e. LOC_LOCAL) are on the memory stack, with their
offsets being relative to the memory stack pointer (high C) or
saved_msp (gcc). */
 
#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. */
/* We tried going to the effort of finding the tags word and getting
the argcount field from it, to support debugging assembler code.
Problem was, the "argcount" field never did hold the argument
count. */
#define FRAME_NUM_ARGS(fi) (-1)
 
#define FRAME_ARGS_ADDRESS(fi) FRAME_LOCALS_ADDRESS (fi)
 
/* Return number of bytes at start of arglist that are not really args. */
 
#define FRAME_ARGS_SKIP 0
 
/* Provide our own get_saved_register. HAVE_REGISTER_WINDOWS is insufficient
because registers get renumbered on the a29k without getting saved. */
 
struct frame_info;
void a29k_get_saved_register PARAMS ((char *raw_buffer, int *optimized, CORE_ADDR * addrp, struct frame_info * frame, int regnum, enum lval_type * lvalp));
#define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \
a29k_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
/* Call function stuff. */
/* *INDENT-OFF* */
/* The dummy frame looks like this (see also the general frame picture
above):
 
register stack
 
| | frame for function
| locals_sproc | executing at time
|________________| of call_function.
| | We must not disturb
| args_out_sproc | it.
memory stack |________________|
|____lr1_sproc___|<-+
| | |__retaddr_sproc_| | <-- gr1 (at start)
|____________|<-msp 0 <-----------mfp_dummy_____| |
| | (at start) | save regs | |
| arg_slop | | pc0,pc1 | |
| | | pc2,lr0 sproc | |
| (16 words) | | gr96-gr124 | |
|____________|<-msp 1--after | sr160-sr162 | |
| | PUSH_DUMMY_FRAME| sr128-sr135 | |
| struct ret | |________________| |
| 17+ | | | |
|____________|<- lrp | args_out_dummy | |
| struct ret | | (16 words) | |
| 16 | |________________| |
| (16 words) | |____lr1_dummy___|--+
|____________|<- msp 2--after |_retaddr_dummy__|<- gr1 after
| | struct ret | | PUSH_DUMMY_FRAME
| margs17+ | area allocated | locals_inf |
| | |________________| called
|____________|<- msp 4--when | | function's
| | inf called | args_out_inf | frame (set up
| margs16 | |________________| by called
| (16 words) | |_____lr1_inf____| function).
|____________|<- msp 3--after | . |
| | args pushed | . |
| | | . |
| |
 
arg_slop: This area is so that when the call dummy adds 16 words to
the msp, it won't end up larger than mfp_dummy (it is needed in the
case where margs and struct_ret do not add up to at least 16 words).
struct ret: This area is allocated by GDB if the return value is more
than 16 words. struct ret_16 is not used on the a29k.
margs: Pushed by GDB. The call dummy copies the first 16 words to
args_out_dummy.
retaddr_sproc: Contains the PC at the time we call the function.
set by PUSH_DUMMY_FRAME and read by POP_FRAME.
retaddr_dummy: This points to a breakpoint instruction in the dummy. */
/* *INDENT-ON* */
 
 
/* Rsize for dummy frame, in bytes. */
 
/* Bytes for outgoing args, lr1, and retaddr. */
#define DUMMY_ARG (2 * 4 + 16 * 4)
 
/* Number of special registers (sr128-) to save. */
#define DUMMY_SAVE_SR128 8
/* Number of special registers (sr160-) to save. */
#define DUMMY_SAVE_SR160 3
/* Number of general (gr96- or gr64-) registers to save. */
#define DUMMY_SAVE_GREGS 29
 
#define DUMMY_FRAME_RSIZE \
(4 /* mfp_dummy */ \
+ 4 * 4 /* pc0, pc1, pc2, lr0 */ \
+ DUMMY_SAVE_GREGS * 4 \
+ DUMMY_SAVE_SR160 * 4 \
+ DUMMY_SAVE_SR128 * 4 \
+ DUMMY_ARG \
+ 4 /* pad to doubleword */ )
 
/* Push an empty stack frame, to record the current PC, etc. */
 
#define PUSH_DUMMY_FRAME push_dummy_frame()
extern void push_dummy_frame ();
 
/* Discard from the stack the innermost frame,
restoring all saved registers. */
 
#define POP_FRAME pop_frame()
extern void pop_frame ();
 
/* This sequence of words is the instructions
mtsrim cr, 15
loadm 0, 0, lr2, msp ; load first 16 words of arguments into registers
add msp, msp, 16 * 4 ; point to the remaining arguments
CONST_INSN:
const lr0,inf ; (replaced by half of target addr)
consth lr0,inf ; (replaced by other half of target addr)
calli lr0, lr0
aseq 0x40,gr1,gr1 ; nop
BREAKPT_INSN:
asneq 0x50,gr1,gr1 ; breakpoint (replaced by local breakpoint insn)
*/
 
#if TARGET_BYTE_ORDER == HOST_BYTE_ORDER
#define BS(const) const
#else
#define BS(const) (((const) & 0xff) << 24) | \
(((const) & 0xff00) << 8) | \
(((const) & 0xff0000) >> 8) | \
(((const) & 0xff000000) >> 24)
#endif
 
/* Position of the "const" and blkt instructions within CALL_DUMMY in bytes. */
#define CONST_INSN (3 * 4)
#define BREAKPT_INSN (7 * 4)
#define CALL_DUMMY { \
BS(0x0400870f),\
BS(0x36008200|(MSP_HW_REGNUM)), \
BS(0x15000040|(MSP_HW_REGNUM<<8)|(MSP_HW_REGNUM<<16)), \
BS(0x03ff80ff), \
BS(0x02ff80ff), \
BS(0xc8008080), \
BS(0x70400101), \
BS(0x72500101)}
#define CALL_DUMMY_LENGTH (8 * 4)
 
#define CALL_DUMMY_START_OFFSET 0 /* Start execution at beginning of dummy */
 
/* Helper macro for FIX_CALL_DUMMY. WORDP is a long * which points to a
word in target byte order; bits 0-7 and 16-23 of *WORDP are replaced with
bits 0-7 and 8-15 of DATA (which is in host byte order). */
 
#if TARGET_BYTE_ORDER == BIG_ENDIAN
#define STUFF_I16(WORDP, DATA) \
{ \
*((char *)(WORDP) + 3) = ((DATA) & 0xff);\
*((char *)(WORDP) + 1) = (((DATA) >> 8) & 0xff);\
}
#else /* Target is little endian. */
#define STUFF_I16(WORDP, DATA) \
{
*(char *) (WORDP) = ((DATA) & 0xff);
*((char *) (WORDP) + 2) = (((DATA) >> 8) & 0xff);
}
#endif /* Target is little endian. */
 
/* Insert the specified number of args and function address
into a call sequence of the above form stored at DUMMYNAME. */
 
/* Currently this stuffs in the address of the function that we are calling.
Since different a29k systems use different breakpoint instructions, it
also stuffs BREAKPOINT in the right place (to avoid having to
duplicate CALL_DUMMY in each tm-*.h file). */
 
#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
{\
STUFF_I16((char *)dummyname + CONST_INSN, fun); \
STUFF_I16((char *)dummyname + CONST_INSN + 4, fun >> 16); \
/* FIXME memcpy ((char *)(dummyname) + BREAKPT_INSN, break_insn, 4); */ \
}
 
/* a29k architecture has separate data & instruction memories -- wired to
different pins on the chip -- and can't execute the data memory.
Also, there should be space after text_end;
we won't get a SIGSEGV or scribble on data space. */
 
#define CALL_DUMMY_LOCATION AFTER_TEXT_END
 
/* Because of this, we need (as a kludge) to know the addresses of the
text section. */
 
#define NEED_TEXT_START_END 1
 
/* How to translate register numbers in the .stab's into gdb's internal register
numbers. We don't translate them, but we warn if an invalid register
number is seen. Note that FIXME, we use the value "sym" as an implicit
argument in printing the error message. It happens to be available where
this macro is used. (This macro definition appeared in a late revision
of gdb-3.91.6 and is not well tested. Also, it should be a "complaint".) */
 
#define STAB_REG_TO_REGNUM(num) \
(((num) > LR0_REGNUM + 127) \
? fprintf(stderr, \
"Invalid register number %d in symbol table entry for %s\n", \
(num), SYMBOL_SOURCE_NAME (sym)), (num) \
: (num))
 
extern enum a29k_processor_types
{
a29k_unknown,
 
/* Bit 0x400 of the CPS does *not* identify freeze mode, i.e. 29000,
29030, etc. */
a29k_no_freeze_mode,
 
/* Bit 0x400 of the CPS does identify freeze mode, i.e. 29050. */
a29k_freeze_mode
}
processor_type;
 
/* We need three arguments for a general frame specification for the
"frame" or "info frame" command. */
 
#define SETUP_ARBITRARY_FRAME(argc, argv) setup_arbitrary_frame (argc, argv)
extern struct frame_info *setup_arbitrary_frame PARAMS ((int, CORE_ADDR *));
/ultra3.mh
0,0 → 1,13
# Host: NYU Ultracomputer (AMD 29000 running Unix)
 
CC=u3cc
 
XM_FILE= xm-ultra3.h
XDEPFILES= ultra3-xdep.o
 
MH_CFLAGS = -DSYM1
XM_CLIBS = -lsysv -ljobs -ltermlib
 
NAT_FILE= nm-ultra3.h
NATDEPFILES= infptrace.o inftarg.o fork-child.o ultra3-nat.o
 
/tm-ultra3.h
0,0 → 1,227
/* Parameters for NYU Ultracomputer 29000 target, for GDB, the GNU debugger.
Copyright 1990, 1991 Free Software Foundation, Inc.
Contributed by David Wood @ New York University (wood@nyu.edu).
 
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. */
 
/* This file includes tm-a29k.h, but predefines REGISTER_NAMES and
related macros. The file supports a a29k running our flavor of
Unix on our Ultra3 PE Boards. */
 
/* Byte order is configurable, but this machine runs big-endian. */
#define TARGET_BYTE_ORDER BIG_ENDIAN
 
/* Initializer for an array of names of registers.
There should be NUM_REGS strings in this initializer.
*/
#define NUM_REGS (EXO_REGNUM + 1)
 
#define REGISTER_NAMES { \
"gr1", \
"gr64", "gr65", "gr66", "gr67", "gr68", "gr69", "gr70", "gr71", "gr72", \
"gr73", "gr74", "gr75", "gr76", "gr77", "gr78", "gr79", "gr80", "gr81", \
"gr82", "gr83", "gr84", "gr85", "gr86", "gr87", "gr88", "gr89", "gr90", \
"gr91", "gr92", "gr93", "gr94", "gr95", \
"gr96", "gr97", "gr98", "gr99", "gr100", "gr101", "gr102", "gr103", "gr104", \
"gr105", "gr106", "gr107", "gr108", "gr109", "gr110", "gr111", "gr112", \
"gr113", "gr114", "gr115", "gr116", "gr117", "gr118", "gr119", "gr120", \
"gr121", "gr122", "gr123", "gr124", "gr125", "gr126", "gr127", \
"lr0", "lr1", "lr2", "lr3", "lr4", "lr5", "lr6", "lr7", "lr8", "lr9", \
"lr10", "lr11", "lr12", "lr13", "lr14", "lr15", "lr16", "lr17", "lr18", \
"lr19", "lr20", "lr21", "lr22", "lr23", "lr24", "lr25", "lr26", "lr27", \
"lr28", "lr29", "lr30", "lr31", "lr32", "lr33", "lr34", "lr35", "lr36", \
"lr37", "lr38", "lr39", "lr40", "lr41", "lr42", "lr43", "lr44", "lr45", \
"lr46", "lr47", "lr48", "lr49", "lr50", "lr51", "lr52", "lr53", "lr54", \
"lr55", "lr56", "lr57", "lr58", "lr59", "lr60", "lr61", "lr62", "lr63", \
"lr64", "lr65", "lr66", "lr67", "lr68", "lr69", "lr70", "lr71", "lr72", \
"lr73", "lr74", "lr75", "lr76", "lr77", "lr78", "lr79", "lr80", "lr81", \
"lr82", "lr83", "lr84", "lr85", "lr86", "lr87", "lr88", "lr89", "lr90", \
"lr91", "lr92", "lr93", "lr94", "lr95", "lr96", "lr97", "lr98", "lr99", \
"lr100", "lr101", "lr102", "lr103", "lr104", "lr105", "lr106", "lr107", \
"lr108", "lr109", "lr110", "lr111", "lr112", "lr113", "lr114", "lr115", \
"lr116", "lr117", "lr118", "lr119", "lr120", "lr121", "lr122", "lr123", \
"lr124", "lr125", "lr126", "lr127", \
"vab", "ops", "cps", "cfg", "cha", "chd", "chc", "rbp", "tmc", "tmr", \
"pc0", "pc1", "pc2", "mmu", "lru", \
"ipc", "ipa", "ipb", "q", "alu", "bp", "fc", "cr", \
"fpe", "int", "fps", "exo" }
 
 
#ifdef KERNEL_DEBUGGING
#define PADDR_U_REGNUM 22 /* gr86 */
#define RETURN_REGNUM GR64_REGNUM
#else
#define RETURN_REGNUM GR96_REGNUM
#endif /* KERNEL_DEBUGGING */
 
 
/* Should rename all GR96_REGNUM to RETURN_REGNUM */
#define GR1_REGNUM (0)
#define GR64_REGNUM 1
#define GR96_REGNUM (GR64_REGNUM + 32)
/* This needs to be the memory stack pointer, not the register stack pointer,
to make call_function work right. */
#define SP_REGNUM MSP_REGNUM
 
#define FP_REGNUM (LR0_REGNUM + 1) /* lr1 */
/* Large Return Pointer */
#define LRP_REGNUM (123 - 96 + RETURN_REGNUM)
/* Static link pointer */
#define SLP_REGNUM (124 - 96 + RETURN_REGNUM)
/* Memory Stack Pointer. */
#define MSP_REGNUM (125 - 96 + RETURN_REGNUM)
/* Register allocate bound. */
#define RAB_REGNUM (126 - 96 + RETURN_REGNUM)
/* Register Free Bound. */
#define RFB_REGNUM (127 - 96 + RETURN_REGNUM)
/* Register Stack Pointer. */
#define RSP_REGNUM GR1_REGNUM
#define LR0_REGNUM ( 32 + GR96_REGNUM)
 
/* Protected Special registers */
#define VAB_REGNUM (LR0_REGNUM + 128)
#define OPS_REGNUM (VAB_REGNUM + 1)
#define CPS_REGNUM (VAB_REGNUM + 2)
#define CFG_REGNUM (VAB_REGNUM + 3)
#define CHA_REGNUM (VAB_REGNUM + 4)
#define CHD_REGNUM (VAB_REGNUM + 5)
#define CHC_REGNUM (VAB_REGNUM + 6)
#define RBP_REGNUM (VAB_REGNUM + 7)
#define TMC_REGNUM (VAB_REGNUM + 8)
#define TMR_REGNUM (VAB_REGNUM + 9)
#define NPC_REGNUM (VAB_REGNUM + 10) /* pc0 */
#define PC_REGNUM (VAB_REGNUM + 11) /* pc1 */
#define PC2_REGNUM (VAB_REGNUM + 12) /* pc2 */
#define MMU_REGNUM (VAB_REGNUM + 13)
#define LRU_REGNUM (VAB_REGNUM + 14)
/* Register sequence gap */
/* Unprotected Special registers */
#define IPC_REGNUM (LRU_REGNUM + 1)
#define IPA_REGNUM (IPC_REGNUM + 1)
#define IPB_REGNUM (IPC_REGNUM + 2)
#define Q_REGNUM (IPC_REGNUM + 3)
#define ALU_REGNUM (IPC_REGNUM + 4)
#define PS_REGNUM ALU_REGNUM
#define BP_REGNUM (IPC_REGNUM + 5)
#define FC_REGNUM (IPC_REGNUM + 6)
#define CR_REGNUM (IPC_REGNUM + 7)
/* Register sequence gap */
#define FPE_REGNUM (CR_REGNUM + 1)
#define INT_REGNUM (FPE_REGNUM + 1)
#define FPS_REGNUM (FPE_REGNUM + 2)
/* Register sequence gap */
#define EXO_REGNUM (FPS_REGNUM + 1)
 
/* Special register #x. */
#define SR_REGNUM(x) \
((x) < 15 ? VAB_REGNUM + (x) \
: (x) >= 128 && (x) < 136 ? IPC_REGNUM + (x-128) \
: (x) >= 160 && (x) < 163 ? FPE_REGNUM + (x-160) \
: (x) == 164 ? EXO_REGNUM \
: (error ("Internal error in SR_REGNUM"), 0))
 
#ifndef KERNEL_DEBUGGING
/*
* This macro defines the register numbers (from REGISTER_NAMES) that
* are effectively unavailable to the user through ptrace(). It allows
* us to include the whole register set in REGISTER_NAMES (inorder to
* better support remote debugging). If it is used in
* fetch/store_inferior_registers() gdb will not complain about I/O errors
* on fetching these registers. If all registers in REGISTER_NAMES
* are available, then return false (0).
*/
#define CANNOT_STORE_REGISTER(regno) \
(((regno)>=GR64_REGNUM && (regno)<GR64_REGNUM+32) || \
((regno)==VAB_REGNUM) || \
((regno)==OPS_REGNUM) || \
((regno)>=CFG_REGNUM && (regno)<=TMR_REGNUM) || \
((regno)==MMU_REGNUM) || \
((regno)==LRU_REGNUM) || \
((regno)>=ALU_REGNUM) || \
((regno)==CR_REGNUM) || \
((regno)==EXO_REGNUM))
#define CANNOT_FETCH_REGISTER(regno) CANNOT_STORE_REGISTER(regno)
#endif /* KERNEL_DEBUGGING */
 
/*
* Converts an sdb register number to an internal gdb register number.
* Currently under gcc, gr96->0...gr128->31...lr0->32...lr127->159, or...
* gr64->0...gr95->31, lr0->32...lr127->159.
*/
#define SDB_REG_TO_REGNUM(value) (((value)<32) ? ((value)+RETURN_REGNUM) : \
((value)-32+LR0_REGNUM))
 
#ifdef KERNEL_DEBUGGING
/* ublock virtual address as defined in our sys/param.h */
/* FIXME: Should get this from sys/param.h */
#define UVADDR ((32*0x100000)-8192)
#endif
 
/*
* Are we in sigtramp(), needed in infrun.c. Specific to ultra3, because
* we take off the leading '_'.
*/
#if !defined(KERNEL_DEBUGGING)
#ifdef SYM1
#define IN_SIGTRAMP(pc, name) (name && STREQ ("sigtramp", name))
#else
Need to define
IN_SIGTRAMP () for sym2.
#endif
#endif /* !KERNEL_DEBUGGING */
 
#include "a29k/tm-a29k.h"
 
/**** The following are definitions that override those in tm-a29k.h ****/
 
/* This sequence of words is the instructions
mtsrim cr, 15
loadm 0, 0, lr2, msp ; load first 16 words of arguments into registers
add msp, msp, 16 * 4 ; point to the remaining arguments
CONST_INSN:
const gr96,inf
consth gr96,inf
calli lr0, gr96
aseq 0x40,gr1,gr1 ; nop
asneq 0x50,gr1,gr1 ; breakpoint
When KERNEL_DEBUGGIN is defined, msp -> gr93, gr96 -> gr64,
7d -> 5d, 60 -> 40
*/
 
/* Position of the "const" instruction within CALL_DUMMY in bytes. */
#undef CALL_DUMMY
#if TARGET_BYTE_ORDER == HOST_BYTE_ORDER
#ifdef KERNEL_DEBUGGING /* gr96 -> gr64 */
#define CALL_DUMMY {0x0400870f, 0x3600825d, 0x155d5d40, 0x03ff40ff, \
0x02ff40ff, 0xc8008040, 0x70400101, 0x72500101}
#else
#define CALL_DUMMY {0x0400870f, 0x3600827d, 0x157d7d40, 0x03ff60ff, \
0x02ff60ff, 0xc8008060, 0x70400101, 0x72500101}
#endif /* KERNEL_DEBUGGING */
#else /* Byte order differs. */
you lose
#endif /* Byte order differs. */
 
#if !defined(KERNEL_DEBUGGING)
#ifdef SYM1
#undef DECR_PC_AFTER_BREAK
#define DECR_PC_AFTER_BREAK 0 /* Sym1 kernel does the decrement */
#else
->"ULTRA3 running other than sym1 OS" !;
#endif
#endif /* !KERNEL_DEBUGGING */

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