diff options
Diffstat (limited to 'gdb/m-umax.h')
| -rw-r--r-- | gdb/m-umax.h | 466 |
1 files changed, 0 insertions, 466 deletions
diff --git a/gdb/m-umax.h b/gdb/m-umax.h deleted file mode 100644 index 6415d39..0000000 --- a/gdb/m-umax.h +++ /dev/null @@ -1,466 +0,0 @@ -/* Definitions to make GDB run on an encore under umax 4.2 - Copyright (C) 1987, 1989 Free Software Foundation, Inc. - -This file is part of GDB. - -GDB 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 1, or (at your option) -any later version. - -GDB 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 GDB; see the file COPYING. If not, write to -the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ - -#ifndef ns16000 -#define ns16000 -#endif - -#define HAVE_WAIT_STRUCT - -/* Define the bit, byte, and word ordering of the machine. */ -/* #define BITS_BIG_ENDIAN */ -/* #define BYTES_BIG_ENDIAN */ -/* #define WORDS_BIG_ENDIAN */ - -/* Encore's modifications to ptrace format */ - -#define UMAX_PTRACE - -/* Encore's modifications to core-file format */ - -#define UMAX_CORE - -/* Do implement the attach and detach commands. */ - -#define ATTACH_DETACH - -/* 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 - -/* Exec files and symbol tables are in COFF format */ - -#define COFF_FORMAT - -/* Doesn't have siginterupt. */ -#define NO_SIGINTERRUPT - -/* 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) \ -{ register unsigned char op = read_memory_integer (pc, 1); \ - if (op == 0x82) { op = read_memory_integer (pc+2,1); \ - if ((op & 0x80) == 0) pc += 3; \ - else if ((op & 0xc0) == 0x80) pc += 4; \ - else pc += 6; \ - } \ -} - -/* 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) \ - read_memory_integer (read_register (SP_REGNUM), 4) - -/* Address of end of stack space. */ - -#define STACK_END_ADDR (0xfffff000) - -/* Stack grows downward. */ - -#define INNER_THAN < - -/* Sequence of bytes for breakpoint instruction. */ - -#define BREAKPOINT {0xf2} - -/* 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, 1) == 0x12) - -#ifndef NaN -#include <nan.h> -#endif NaN - -/* Return 1 if P points to an invalid floating point value. */ - -#define INVALID_FLOAT(p, s) \ - ((s == sizeof (float))? \ - NaF (*(float *) p) : \ - NaD (*(double *) p)) - -/* Largest integer type */ -#define LONGEST long - -/* Name of the builtin type for the LONGEST type above. */ -#define BUILTIN_TYPE_LONGEST builtin_type_long - -/* Say how long (ordinary) registers are. */ - -#define REGISTER_TYPE long - -/* Number of machine registers */ - -#define NUM_REGS 25 - -#define NUM_GENERAL_REGS 8 - -/* 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", \ - "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \ - "sp", "fp", "pc", "ps", \ - "fsr", \ - "l0", "l1", "l2", "l3", "xx", \ - } - -/* 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 FP0_REGNUM 8 /* Floating point register 0 */ -#define SP_REGNUM 16 /* Contains address of top of stack */ -#define AP_REGNUM FP_REGNUM -#define FP_REGNUM 17 /* Contains address of executing stack frame */ -#define PC_REGNUM 18 /* Contains program counter */ -#define PS_REGNUM 19 /* Contains processor status */ -#define FPS_REGNUM 20 /* Floating point status register */ -#define LP0_REGNUM 21 /* Double register 0 (same as FP0) */ - -/* called from register_addr() -- blockend not used for now */ -#define REGISTER_U_ADDR(addr, blockend, regno) \ -{ \ - switch (regno) { \ - case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7: \ - addr = PU_R0 - (regno * sizeof (int)); break; \ - case SP_REGNUM: \ - addr = PU_SP; break; \ - case PC_REGNUM: \ - addr = PU_PC; break; \ - case FP_REGNUM: \ - addr = PU_FP; break; \ - case PS_REGNUM: \ - addr = PU_PSL; break; \ - case FPS_REGNUM: \ - addr = PU_FSR; break; \ - case FP0_REGNUM + 0: case FP0_REGNUM + 1: \ - case FP0_REGNUM + 2: case FP0_REGNUM + 3: \ - case FP0_REGNUM + 4: case FP0_REGNUM + 5: \ - case FP0_REGNUM + 6: case FP0_REGNUM + 7: \ - addr = PU_F0 + (regno - FP0_REGNUM) * sizeof (float); break; \ - case LP0_REGNUM + 0: case LP0_REGNUM + 1: \ - case LP0_REGNUM + 2: case LP0_REGNUM + 3: \ - addr = PU_F0 + (regno - LP0_REGNUM) * sizeof (double); break; \ - default: \ - printf ("bad argument to REGISTER_U_ADDR %d\n", regno); \ - abort (); \ - } \ -} - -/* Total amount of space needed to store our copies of the machine's - register state, the array `registers'. */ -#define REGISTER_BYTES ((NUM_REGS - 4) * sizeof (int) + 4 * sizeof (double)) - -/* Index within `registers' of the first byte of the space for - register N. */ - -#define REGISTER_BYTE(N) ((N) >= LP0_REGNUM ? \ - LP0_REGNUM * 4 + ((N) - LP0_REGNUM) * 8 : (N) * 4) - -/* Number of bytes of storage in the actual machine representation - for register N. On the 32000, all regs are 4 bytes - except for the doubled floating registers. */ - -#define REGISTER_RAW_SIZE(N) ((N) >= LP0_REGNUM ? 8 : 4) - -/* Number of bytes of storage in the program's representation - for register N. On the 32000, all regs are 4 bytes - except for the doubled floating registers. */ - -#define REGISTER_VIRTUAL_SIZE(N) ((N) >= LP0_REGNUM ? 8 : 4) - -/* Largest value REGISTER_RAW_SIZE can have. */ - -#define MAX_REGISTER_RAW_SIZE 8 - -/* 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) 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), REGISTER_VIRTUAL_SIZE(REGNUM)); - -/* 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), REGISTER_VIRTUAL_SIZE(REGNUM)); - -/* Return the GDB type object for the "standard" data type - of data in register N. */ - -#define REGISTER_VIRTUAL_TYPE(N) \ - (((N) < FP0_REGNUM) ? \ - builtin_type_int : \ - ((N) < FP0_REGNUM + 8) ? \ - builtin_type_float : \ - ((N) < LP0_REGNUM) ? \ - builtin_type_int : \ - builtin_type_double) - -/* Store the address of the place in which to copy the structure the - subroutine will return. This is called from call_function. - - On this machine this is a no-op, because gcc isn't used on it - yet. So this calling convention is not used. */ - -#define STORE_STRUCT_RETURN(ADDR, SP) - -/* 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) \ - bcopy (REGBUF+REGISTER_BYTE (TYPE_CODE (TYPE) == TYPE_CODE_FLT ? FP0_REGNUM : 0), VALBUF, TYPE_LENGTH (TYPE)) - -/* Write into appropriate registers a function return value - of type TYPE, given in virtual format. */ - -#define STORE_RETURN_VALUE(TYPE,VALBUF) \ - write_register_bytes (REGISTER_BYTE (TYPE_CODE (TYPE) == TYPE_CODE_FLT ? FP0_REGNUM : 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)) - -/* 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. */ - -/* In the case of the ns32000 series, the frame's nominal address is the FP - value, and at that address is saved previous FP value as a 4-byte word. */ - -#define FRAME_CHAIN(thisframe) \ - (outside_startup_file ((thisframe)->pc) ? \ - read_memory_integer ((thisframe)->frame, 4) :\ - 0) - -#define FRAME_CHAIN_VALID(chain, thisframe) \ - (chain != 0 && (outside_startup_file (FRAME_SAVED_PC (thisframe)))) - -#define FRAME_CHAIN_COMBINE(chain, thisframe) (chain) - -/* Define other aspects of the stack frame. */ - -#define FRAME_SAVED_PC(FRAME) (read_memory_integer ((FRAME)->frame + 4, 4)) - -/* Compute base of arguments. */ - -#define FRAME_ARGS_ADDRESS(fi) \ - ((ns32k_get_enter_addr ((fi)->pc) > 1) ? \ - ((fi)->frame) : (read_register (SP_REGNUM) - 4)) - -#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame) - -/* Get the address of the enter opcode for this function, if it is active. - Returns positive address > 1 if pc is between enter/exit, - 1 if pc before enter or after exit, 0 otherwise. */ - -#ifndef CORE_ADDR -#include "defs.h" /* Make sure CORE_ADDR is defined. */ -#endif - -extern CORE_ADDR ns32k_get_enter_addr (); - -/* Return number of args passed to a frame. - Can return -1, meaning no way to tell. - Encore's C compiler often reuses same area on stack for args, - so this will often not work properly. If the arg names - are known, it's likely most of them will be printed. */ - -#define FRAME_NUM_ARGS(numargs, fi) \ -{ CORE_ADDR pc; \ - CORE_ADDR enter_addr; \ - unsigned int insn; \ - unsigned int addr_mode; \ - int width; \ - \ - numargs = -1; \ - enter_addr = ns32k_get_enter_addr ((fi)->pc); \ - if (enter_addr > 0) \ - { \ - pc = (enter_addr == 1) ? \ - SAVED_PC_AFTER_CALL (fi) : \ - FRAME_SAVED_PC (fi); \ - insn = read_memory_integer (pc,2); \ - addr_mode = (insn >> 11) & 0x1f; \ - insn = insn & 0x7ff; \ - if ((insn & 0x7fc) == 0x57c && \ - addr_mode == 0x14) /* immediate */ \ - { \ - if (insn == 0x57c) /* adjspb */ \ - width = 1; \ - else if (insn == 0x57d) /* adjspw */ \ - width = 2; \ - else if (insn == 0x57f) /* adjspd */ \ - width = 4; \ - numargs = read_memory_integer (pc+2,width); \ - if (width > 1) \ - flip_bytes (&numargs, width); \ - numargs = - sign_extend (numargs, width*8) / 4;\ - } \ - } \ -} - -/* Return number of bytes at start of arglist that are not really args. */ - -#define FRAME_ARGS_SKIP 8 - -/* 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(frame_info, frame_saved_regs) \ -{ \ - register int regmask, regnum; \ - int localcount; \ - register CORE_ADDR enter_addr; \ - register CORE_ADDR next_addr; \ - \ - bzero (&(frame_saved_regs), sizeof (frame_saved_regs)); \ - enter_addr = ns32k_get_enter_addr ((frame_info)->pc); \ - if (enter_addr > 1) \ - { \ - regmask = read_memory_integer (enter_addr+1, 1) & 0xff; \ - localcount = ns32k_localcount (enter_addr); \ - next_addr = (frame_info)->frame + localcount; \ - for (regnum = 0; regnum < 8; regnum++, regmask >>= 1) \ - (frame_saved_regs).regs[regnum] = (regmask & 1) ? \ - (next_addr -= 4) : 0; \ - (frame_saved_regs).regs[SP_REGNUM] = (frame_info)->frame + 4;\ - (frame_saved_regs).regs[PC_REGNUM] = (frame_info)->frame + 4;\ - (frame_saved_regs).regs[FP_REGNUM] = \ - (read_memory_integer ((frame_info)->frame, 4));\ - } \ - else if (enter_addr == 1) \ - { \ - CORE_ADDR sp = read_register (SP_REGNUM); \ - (frame_saved_regs).regs[PC_REGNUM] = sp; \ - (frame_saved_regs).regs[SP_REGNUM] = sp + 4; \ - } \ -} - -/* Compensate for lack of `vprintf' function. */ -#ifndef HAVE_VPRINTF -#define vprintf(format, ap) _doprnt (format, ap, stdout) -#endif /* not HAVE_VPRINTF */ - -/* Things needed for making the inferior call functions. */ - -/* Push an empty stack frame, to record the current PC, etc. */ - -#define PUSH_DUMMY_FRAME \ -{ register CORE_ADDR sp = read_register (SP_REGNUM);\ - register int regnum; \ - sp = push_word (sp, read_register (PC_REGNUM)); \ - sp = push_word (sp, read_register (FP_REGNUM)); \ - write_register (FP_REGNUM, sp); \ - for (regnum = 0; regnum < 8; regnum++) \ - sp = push_word (sp, read_register (regnum)); \ - write_register (SP_REGNUM, sp); \ -} - -/* Discard from the stack the innermost frame, restoring all registers. */ - -#define POP_FRAME \ -{ register FRAME frame = get_current_frame (); \ - register CORE_ADDR fp; \ - register int regnum; \ - struct frame_saved_regs fsr; \ - struct frame_info *fi; \ - fi = get_frame_info (frame); \ - fp = fi->frame; \ - get_frame_saved_regs (fi, &fsr); \ - for (regnum = 0; regnum < 8; regnum++) \ - if (fsr.regs[regnum]) \ - write_register (regnum, read_memory_integer (fsr.regs[regnum], 4)); \ - write_register (FP_REGNUM, read_memory_integer (fp, 4)); \ - write_register (PC_REGNUM, read_memory_integer (fp + 4, 4)); \ - write_register (SP_REGNUM, fp + 8); \ - flush_cached_frames (); \ - set_current_frame (create_new_frame (read_register (FP_REGNUM),\ - read_pc ())); } - -/* This sequence of words is the instructions - enter 0xff,0 82 ff 00 - jsr @0x00010203 7f ae c0 01 02 03 - adjspd 0x69696969 7f a5 01 02 03 04 - bpt f2 - Note this is 16 bytes. */ - -#define CALL_DUMMY { 0x7f00ff82, 0x0201c0ae, 0x01a57f03, 0xf2040302 } - -#define CALL_DUMMY_START_OFFSET 3 -#define CALL_DUMMY_LENGTH 16 -#define CALL_DUMMY_ADDR 5 -#define CALL_DUMMY_NARGS 11 - -/* Insert the specified number of args and function address - into a call sequence of the above form stored at DUMMYNAME. */ - -#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, type) \ -{ \ - int flipped; \ - flipped = fun | 0xc0000000; \ - flip_bytes (&flipped, 4); \ - *((int *) (((char *) dummyname)+CALL_DUMMY_ADDR)) = flipped; \ - flipped = - nargs * 4; \ - flip_bytes (&flipped, 4); \ - *((int *) (((char *) dummyname)+CALL_DUMMY_NARGS)) = flipped; \ -} |