271 lines
13 KiB
C
271 lines
13 KiB
C
/* OBSOLETE /* Definitions to make GDB target for a tahoe running 4.3-Reno. */
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/* OBSOLETE Copyright 1986, 1987, 1989, 1991, 1992, 1993 Free Software Foundation, Inc. */
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/* OBSOLETE */
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/* OBSOLETE This file is part of GDB. */
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/* OBSOLETE */
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/* OBSOLETE This program is free software; you can redistribute it and/or modify */
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/* OBSOLETE it under the terms of the GNU General Public License as published by */
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/* OBSOLETE the Free Software Foundation; either version 2 of the License, or */
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/* OBSOLETE (at your option) any later version. */
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/* OBSOLETE */
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/* OBSOLETE This program is distributed in the hope that it will be useful, */
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/* OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of */
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/* OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
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/* OBSOLETE GNU General Public License for more details. */
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/* OBSOLETE */
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/* OBSOLETE You should have received a copy of the GNU General Public License */
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/* OBSOLETE along with this program; if not, write to the Free Software */
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/* OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330, */
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/* OBSOLETE Boston, MA 02111-1307, USA. *x/ */
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/* OBSOLETE */
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/* OBSOLETE /* */
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/* OBSOLETE * Ported by the State University of New York at Buffalo by the Distributed */
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/* OBSOLETE * Computer Systems Lab, Department of Computer Science, 1991. */
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/* OBSOLETE *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define TARGET_BYTE_ORDER BIG_ENDIAN */
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/* OBSOLETE #define BITS_BIG_ENDIAN 0 */
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/* OBSOLETE */
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/* OBSOLETE /* Offset from address of function to start of its code. */
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/* OBSOLETE Zero on most machines. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define FUNCTION_START_OFFSET 2 */
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/* OBSOLETE */
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/* OBSOLETE /* Advance PC across any function entry prologue instructions */
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/* OBSOLETE to reach some "real" code. *x/ */
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/* OBSOLETE */
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/* OBSOLETE extern CORE_ADDR tahoe_skip_prologue (CORE_ADDR); */
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/* OBSOLETE #define SKIP_PROLOGUE(pc) (tahoe_skip_prologue (pc)) */
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/* OBSOLETE */
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/* OBSOLETE /* Immediately after a function call, return the saved pc. */
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/* OBSOLETE Can't always go through the frames for this because on some machines */
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/* OBSOLETE the new frame is not set up until the new function executes */
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/* OBSOLETE some instructions. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define SAVED_PC_AFTER_CALL(frame) FRAME_SAVED_PC(frame) */
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/* OBSOLETE */
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/* OBSOLETE /* Wrong for cross-debugging. I don't know the real values. *x/ */
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/* OBSOLETE #include <machine/param.h> */
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/* OBSOLETE #define TARGET_UPAGES UPAGES */
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/* OBSOLETE #define TARGET_NBPG NBPG */
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/* OBSOLETE */
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/* OBSOLETE /* Address of end of stack space. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define STACK_END_ADDR (0xc0000000 - (TARGET_UPAGES * TARGET_NBPG)) */
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/* OBSOLETE */
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/* OBSOLETE /* On BSD, sigtramp is in the u area. Can't check the exact */
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/* OBSOLETE addresses because for cross-debugging we don't have target include */
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/* OBSOLETE files around. This should be close enough. *x/ */
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/* OBSOLETE #define IN_SIGTRAMP(pc, name) ((pc) >= STACK_END_ADDR && (pc < 0xc0000000)) */
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/* OBSOLETE */
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/* OBSOLETE /* Stack grows downward. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define INNER_THAN(lhs,rhs) ((lhs) < (rhs)) */
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/* OBSOLETE */
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/* OBSOLETE /* Sequence of bytes for breakpoint instruction. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define BREAKPOINT {0x30} */
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/* OBSOLETE */
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/* OBSOLETE /* Amount PC must be decremented by after a breakpoint. */
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/* OBSOLETE This is often the number of bytes in BREAKPOINT */
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/* OBSOLETE but not always. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define DECR_PC_AFTER_BREAK 0 */
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/* OBSOLETE */
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/* OBSOLETE /* Return 1 if P points to an invalid floating point value. */
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/* OBSOLETE LEN is the length in bytes -- not relevant on the Tahoe. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define INVALID_FLOAT(p, len) ((*(short *) p & 0xff80) == 0x8000) */
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/* OBSOLETE */
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/* OBSOLETE /* Say how long (ordinary) registers are. This is a piece of bogosity */
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/* OBSOLETE used in push_word and a few other places; REGISTER_RAW_SIZE is the */
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/* OBSOLETE real way to know how big a register is. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define REGISTER_SIZE 4 */
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/* OBSOLETE */
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/* OBSOLETE /* Number of machine registers *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define NUM_REGS 19 */
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/* OBSOLETE */
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/* OBSOLETE /* Initializer for an array of names of registers. */
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/* OBSOLETE There should be NUM_REGS strings in this initializer. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define REGISTER_NAMES {"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12", "fp", "sp", "pc", "ps", "al", "ah"} */
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/* OBSOLETE */
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/* OBSOLETE #define FP_REGNUM 13 /* Contains address of executing stack frame *x/ */
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/* OBSOLETE #define SP_REGNUM 14 /* Contains address of top of stack *x/ */
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/* OBSOLETE #define PC_REGNUM 15 /* Contains program counter *x/ */
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/* OBSOLETE #define PS_REGNUM 16 /* Contains processor status *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define AL_REGNUM 17 /* Contains accumulator *x/ */
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/* OBSOLETE #define AH_REGNUM 18 */
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/* OBSOLETE */
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/* OBSOLETE /* Total amount of space needed to store our copies of the machine's */
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/* OBSOLETE register state, the array `registers'. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define REGISTER_BYTES (19*4) */
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/* OBSOLETE */
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/* OBSOLETE /* Index within `registers' of the first byte of the space for */
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/* OBSOLETE register N. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define REGISTER_BYTE(N) ((N) * 4) */
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/* OBSOLETE */
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/* OBSOLETE /* Number of bytes of storage in the actual machine representation */
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/* OBSOLETE for register N. On the tahoe, all regs are 4 bytes. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define REGISTER_RAW_SIZE(N) 4 */
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/* OBSOLETE */
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/* OBSOLETE /* Number of bytes of storage in the program's representation */
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/* OBSOLETE for register N. On the tahoe, all regs are 4 bytes. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define REGISTER_VIRTUAL_SIZE(N) 4 */
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/* OBSOLETE */
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/* OBSOLETE /* Largest value REGISTER_RAW_SIZE can have. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define MAX_REGISTER_RAW_SIZE 4 */
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/* OBSOLETE */
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/* OBSOLETE /* Largest value REGISTER_VIRTUAL_SIZE can have. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define MAX_REGISTER_VIRTUAL_SIZE 4 */
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/* OBSOLETE */
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/* OBSOLETE /* Return the GDB type object for the "standard" data type */
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/* OBSOLETE of data in register N. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define REGISTER_VIRTUAL_TYPE(N) builtin_type_int */
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/* OBSOLETE */
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/* OBSOLETE /* Store the address of the place in which to copy the structure the */
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/* OBSOLETE subroutine will return. This is called from call_function. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define STORE_STRUCT_RETURN(ADDR, SP) \ */
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/* OBSOLETE { write_register (1, (ADDR)); } */
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/* OBSOLETE */
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/* OBSOLETE /* Extract from an array REGBUF containing the (raw) register state */
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/* OBSOLETE a function return value of type TYPE, and copy that, in virtual format, */
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/* OBSOLETE into VALBUF. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ */
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/* OBSOLETE memcpy (VALBUF, REGBUF, TYPE_LENGTH (TYPE)) */
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/* OBSOLETE */
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/* OBSOLETE /* Write into appropriate registers a function return value */
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/* OBSOLETE of type TYPE, given in virtual format. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define STORE_RETURN_VALUE(TYPE,VALBUF) \ */
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/* OBSOLETE write_register_bytes (0, VALBUF, TYPE_LENGTH (TYPE)) */
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/* OBSOLETE */
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/* OBSOLETE /* Extract from an array REGBUF containing the (raw) register state */
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/* OBSOLETE the address in which a function should return its structure value, */
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/* OBSOLETE as a CORE_ADDR (or an expression that can be used as one). *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) (*(int *)(REGBUF)) */
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/* OBSOLETE */
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/* OBSOLETE /* Describe the pointer in each stack frame to the previous stack frame */
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/* OBSOLETE (its caller). */
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/* OBSOLETE */
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/* OBSOLETE FRAME_CHAIN takes a frame's nominal address */
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/* OBSOLETE and produces the frame's chain-pointer. *x/ */
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/* OBSOLETE */
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/* OBSOLETE /* In the case of the Tahoe, the frame's nominal address is the FP value, */
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/* OBSOLETE and it points to the old FP *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define FRAME_CHAIN(thisframe) \ */
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/* OBSOLETE (!inside_entry_file ((thisframe)->pc) ? \ */
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/* OBSOLETE read_memory_integer ((thisframe)->frame, 4) :\ */
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/* OBSOLETE 0) */
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/* OBSOLETE */
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/* OBSOLETE /* Define other aspects of the stack frame. *x/ */
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/* OBSOLETE */
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/* OBSOLETE /* Saved PC *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define FRAME_SAVED_PC(FRAME) (read_memory_integer ((FRAME)->frame - 8, 4)) */
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/* OBSOLETE */
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/* OBSOLETE /* In most of GDB, getting the args address is too important to */
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/* OBSOLETE just say "I don't know". *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define FRAME_ARGS_ADDRESS(fi) ((fi)->frame) */
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/* OBSOLETE */
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/* OBSOLETE /* Address to use as an anchor for finding local variables *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame) */
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/* OBSOLETE */
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/* OBSOLETE /* Return number of args passed to a frame. */
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/* OBSOLETE Can return -1, meaning no way to tell. *x/ */
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/* OBSOLETE */
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/* OBSOLETE extern int tahoe_frame_num_args (struct frame_info * fi); */
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/* OBSOLETE #define FRAME_NUM_ARGS(fi) (tahoe_frame_num_args ((fi))) */
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/* OBSOLETE */
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/* OBSOLETE /* Return number of bytes at start of arglist that are not really args. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define FRAME_ARGS_SKIP 0 */
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/* OBSOLETE */
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/* OBSOLETE /* Put here the code to store, into a struct frame_saved_regs, */
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/* OBSOLETE the addresses of the saved registers of frame described by FRAME_INFO. */
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/* OBSOLETE This includes special registers such as pc and fp saved in special */
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/* OBSOLETE ways in the stack frame. sp is even more special: */
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/* OBSOLETE the address we return for it IS the sp for the next frame. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \ */
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/* OBSOLETE { register int regnum; \ */
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/* OBSOLETE register int rmask = read_memory_integer ((frame_info)->frame-4, 4) >> 16;\ */
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/* OBSOLETE register CORE_ADDR next_addr; \ */
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/* OBSOLETE memset (&frame_saved_regs, '\0', sizeof frame_saved_regs); \ */
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/* OBSOLETE next_addr = (frame_info)->frame - 8; \ */
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/* OBSOLETE for (regnum = 12; regnum >= 0; regnum--, rmask <<= 1) \ */
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/* OBSOLETE (frame_saved_regs).regs[regnum] = (rmask & 0x1000) ? (next_addr -= 4) : 0;\ */
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/* OBSOLETE (frame_saved_regs).regs[SP_REGNUM] = (frame_info)->frame + 4; \ */
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/* OBSOLETE (frame_saved_regs).regs[PC_REGNUM] = (frame_info)->frame - 8; \ */
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/* OBSOLETE (frame_saved_regs).regs[FP_REGNUM] = (frame_info)->frame; \ */
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/* OBSOLETE } */
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/* OBSOLETE */
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/* OBSOLETE /* Things needed for making the inferior call functions. *x/ */
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/* OBSOLETE */
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/* OBSOLETE /* Push an empty stack frame, to record the current PC, etc. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define PUSH_DUMMY_FRAME \ */
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/* OBSOLETE { register CORE_ADDR sp = read_register (SP_REGNUM); \ */
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/* OBSOLETE register int regnum; \ */
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/* OBSOLETE printf("PUSH_DUMMY_FRAME\n"); \ */
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/* OBSOLETE sp = push_word (sp, read_register (FP_REGNUM)); \ */
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/* OBSOLETE write_register (FP_REGNUM, sp); \ */
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/* OBSOLETE sp = push_word (sp, 0x1fff0004); /*SAVE MASK*x/ \ */
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/* OBSOLETE sp = push_word (sp, read_register (PC_REGNUM)); \ */
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/* OBSOLETE for (regnum = 12; regnum >= 0; regnum--) \ */
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/* OBSOLETE sp = push_word (sp, read_register (regnum)); \ */
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/* OBSOLETE write_register (SP_REGNUM, sp); \ */
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/* OBSOLETE } */
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/* OBSOLETE */
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/* OBSOLETE /* Discard from the stack the innermost frame, restoring all registers. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define POP_FRAME \ */
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/* OBSOLETE { register CORE_ADDR fp = read_register (FP_REGNUM); \ */
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/* OBSOLETE register int regnum; \ */
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/* OBSOLETE register int regmask = read_memory_integer (fp-4, 4); \ */
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/* OBSOLETE printf("POP_FRAME\n"); \ */
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/* OBSOLETE regmask >>= 16; \ */
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/* OBSOLETE write_register (SP_REGNUM, fp+4); \ */
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/* OBSOLETE write_register (PC_REGNUM, read_memory_integer(fp-8, 4)); \ */
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/* OBSOLETE write_register (FP_REGNUM, read_memory_integer(fp, 4)); \ */
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/* OBSOLETE fp -= 8; \ */
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/* OBSOLETE for (regnum = 12; regnum >= 0; regnum--, regmask <<= 1) \ */
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/* OBSOLETE if (regmask & 0x1000) \ */
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/* OBSOLETE write_register (regnum, read_memory_integer (fp-=4, 4)); \ */
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/* OBSOLETE flush_cached_frames (); \ */
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/* OBSOLETE } */
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/* OBSOLETE */
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/* OBSOLETE /* This sequence of words is the instructions */
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/* OBSOLETE calls #69, @#32323232 */
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/* OBSOLETE bpt */
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/* OBSOLETE Note this is 8 bytes. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define CALL_DUMMY {0xbf699f32, 0x32323230} */
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/* OBSOLETE */
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/* OBSOLETE /* Start execution at beginning of dummy *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define CALL_DUMMY_START_OFFSET 0 */
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/* OBSOLETE */
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/* OBSOLETE /* Insert the specified number of args and function address */
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/* OBSOLETE into a call sequence of the above form stored at DUMMYNAME. *x/ */
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/* OBSOLETE */
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/* OBSOLETE #define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, valtype, using_gcc) \ */
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/* OBSOLETE { int temp = (int) fun; \ */
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/* OBSOLETE *((char *) dummyname + 1) = nargs; \ */
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/* OBSOLETE memcpy((char *)dummyname+3,&temp,4); } */
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