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Diffstat (limited to 'gdb/tm-tahoe.h')
| -rw-r--r-- | gdb/tm-tahoe.h | 309 |
1 files changed, 0 insertions, 309 deletions
diff --git a/gdb/tm-tahoe.h b/gdb/tm-tahoe.h deleted file mode 100644 index df6de14..0000000 --- a/gdb/tm-tahoe.h +++ /dev/null @@ -1,309 +0,0 @@ -/* Definitions to make GDB target for a tahoe running 4.3-Reno. - Copyright 1986, 1987, 1989, 1991, 1992, 1993 Free Software Foundation, Inc. - -This file is part of GDB. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ - -/* - * Ported by the State University of New York at Buffalo by the Distributed - * Computer Systems Lab, Department of Computer Science, 1991. - */ - -#define TARGET_BYTE_ORDER BIG_ENDIAN -#define BITS_BIG_ENDIAN 0 - -/* Offset from address of function to start of its code. - Zero on most machines. */ - -#define FUNCTION_START_OFFSET 2 - -/* Advance PC across any function entry prologue instructions - to reach some "real" code. */ - -#define SKIP_PROLOGUE(pc) \ -{ register int op = (unsigned char) read_memory_integer (pc, 1); \ - if (op == 0x11) pc += 2; /* skip brb */ \ - if (op == 0x13) pc += 3; /* skip brw */ \ - if (op == 0x2c && \ - ((unsigned char) read_memory_integer (pc+2, 1)) == 0x5e) \ - pc += 3; /* skip subl2 */ \ - if (op == 0xe9 && \ - ((unsigned char) read_memory_integer (pc+1, 1)) == 0xae && \ - ((unsigned char) read_memory_integer(pc+3, 1)) == 0x5e) \ - pc += 4; /* skip movab */ \ - if (op == 0xe9 && \ - ((unsigned char) read_memory_integer (pc+1, 1)) == 0xce && \ - ((unsigned char) read_memory_integer(pc+4, 1)) == 0x5e) \ - pc += 5; /* skip movab */ \ - if (op == 0xe9 && \ - ((unsigned char) read_memory_integer (pc+1, 1)) == 0xee && \ - ((unsigned char) read_memory_integer(pc+6, 1)) == 0x5e) \ - pc += 7; /* skip movab */ \ -} - -/* 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) FRAME_SAVED_PC(frame) - -/* Wrong for cross-debugging. I don't know the real values. */ -#include <machine/param.h> -#define TARGET_UPAGES UPAGES -#define TARGET_NBPG NBPG - -/* Address of end of stack space. */ - -#define STACK_END_ADDR (0xc0000000 - (TARGET_UPAGES * TARGET_NBPG)) - -/* On BSD, sigtramp is in the u area. Can't check the exact - addresses because for cross-debugging we don't have target include - files around. This should be close enough. */ -#define IN_SIGTRAMP(pc, name) ((pc) >= STACK_END_ADDR && (pc < 0xc0000000)) - -/* Stack grows downward. */ - -#define INNER_THAN < - -/* Sequence of bytes for breakpoint instruction. */ - -#define BREAKPOINT {0x30} - -/* 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) == 0x40) - -/* Return 1 if P points to an invalid floating point value. - LEN is the length in bytes -- not relevant on the Tahoe. */ - -#define INVALID_FLOAT(p, len) ((*(short *) p & 0xff80) == 0x8000) - -/* Say how long (ordinary) registers are. */ - -#define REGISTER_TYPE long - -/* Number of machine registers */ - -#define NUM_REGS 19 - -/* 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", "sp", "pc", "ps", "al", "ah"} - -#define FP_REGNUM 13 /* Contains address of executing stack frame */ -#define SP_REGNUM 14 /* Contains address of top of stack */ -#define PC_REGNUM 15 /* Contains program counter */ -#define PS_REGNUM 16 /* Contains processor status */ - -#define AL_REGNUM 17 /* Contains accumulator */ -#define AH_REGNUM 18 - -/* Total amount of space needed to store our copies of the machine's - register state, the array `registers'. */ - -#define REGISTER_BYTES (19*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. On the tahoe, all regs are 4 bytes. */ - -#define REGISTER_RAW_SIZE(N) 4 - -/* Number of bytes of storage in the program's representation - for register N. On the tahoe, 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 - -/* 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), 4); - -/* 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), 4); - -/* Return the GDB type object for the "standard" data type - of data in register N. */ - -#define REGISTER_VIRTUAL_TYPE(N) 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. */ - -#define STORE_STRUCT_RETURN(ADDR, SP) \ - { write_register (1, (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) \ - bcopy (REGBUF, 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 (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. */ - -/* In the case of the Tahoe, the frame's nominal address is the FP value, - and it points to the old FP */ - -#define FRAME_CHAIN(thisframe) \ - (!inside_entry_file ((thisframe)->pc) ? \ - read_memory_integer ((thisframe)->frame, 4) :\ - 0) - -/* Define other aspects of the stack frame. */ - -/* Saved PC */ - -#define FRAME_SAVED_PC(FRAME) (read_memory_integer ((FRAME)->frame - 8, 4)) - -/* In most of GDB, getting the args address is too important to - just say "I don't know". */ - -#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame) - -/* Address to use as an anchor for finding local variables */ - -#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 = ((0xffff & read_memory_integer(((fi)->frame-4),4)) - 4) >> 2; } - -/* 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. */ - -#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \ -{ register int regnum; \ - register int rmask = read_memory_integer ((frame_info)->frame-4, 4) >> 16;\ - register CORE_ADDR next_addr; \ - bzero (&frame_saved_regs, sizeof frame_saved_regs); \ - next_addr = (frame_info)->frame - 8; \ - for (regnum = 12; regnum >= 0; regnum--, rmask <<= 1) \ - (frame_saved_regs).regs[regnum] = (rmask & 0x1000) ? (next_addr -= 4) : 0;\ - (frame_saved_regs).regs[SP_REGNUM] = (frame_info)->frame + 4; \ - (frame_saved_regs).regs[PC_REGNUM] = (frame_info)->frame - 8; \ - (frame_saved_regs).regs[FP_REGNUM] = (frame_info)->frame; \ -} - -/* 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; \ -printf("PUSH_DUMMY_FRAME\n"); \ - sp = push_word (sp, read_register (FP_REGNUM)); \ - write_register (FP_REGNUM, sp); \ - sp = push_word (sp, 0x1fff0004); /*SAVE MASK*/ \ - sp = push_word (sp, read_register (PC_REGNUM)); \ - for (regnum = 12; regnum >= 0; 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 CORE_ADDR fp = read_register (FP_REGNUM); \ - register int regnum; \ - register int regmask = read_memory_integer (fp-4, 4); \ -printf("POP_FRAME\n"); \ - regmask >>= 16; \ - write_register (SP_REGNUM, fp+4); \ - write_register (PC_REGNUM, read_memory_integer(fp-8, 4)); \ - write_register (FP_REGNUM, read_memory_integer(fp, 4)); \ - fp -= 8; \ - for (regnum = 12; regnum >= 0; regnum--, regmask <<= 1) \ - if (regmask & 0x1000) \ - write_register (regnum, read_memory_integer (fp-=4, 4)); \ - flush_cached_frames (); \ - set_current_frame (create_new_frame (read_register (FP_REGNUM), \ - read_pc ())); } - -/* This sequence of words is the instructions - calls #69, @#32323232 - bpt - Note this is 8 bytes. */ - -#define CALL_DUMMY {0xbf699f32, 0x32323230} - -/* Start execution at beginning of dummy */ - -#define CALL_DUMMY_START_OFFSET 0 - -/* 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, args, valtype, using_gcc) \ -{ int temp = (int) fun; \ - *((char *) dummyname + 1) = nargs; \ - bcopy(&temp,(char *)dummyname+3,4); } - |