From ed0c68f4e762193b93815baf61bf6ccbcb301375 Mon Sep 17 00:00:00 2001 From: cgd Date: Thu, 23 Dec 1993 14:02:03 +0000 Subject: [PATCH] add files eaten by crash --- gnu/usr.bin/gdb/config/Makefile.m68k | 7 + gnu/usr.bin/gdb/config/m-m68kbsd.h | 543 +++++++++++++++++++++++++++ 2 files changed, 550 insertions(+) create mode 100644 gnu/usr.bin/gdb/config/Makefile.m68k create mode 100644 gnu/usr.bin/gdb/config/m-m68kbsd.h diff --git a/gnu/usr.bin/gdb/config/Makefile.m68k b/gnu/usr.bin/gdb/config/Makefile.m68k new file mode 100644 index 000000000000..5800e1536b54 --- /dev/null +++ b/gnu/usr.bin/gdb/config/Makefile.m68k @@ -0,0 +1,7 @@ +# from: @(#)Makefile.hp300 6.1 (Berkeley) 3/11/91 +# $Id: Makefile.m68k,v 1.1 1993/12/23 14:02:03 cgd Exp $ + +CONFIGSRCS= m68kbsd-dep.c m68k-pinsn.c + +param.h: + ln -s $(.CURDIR)/config/m-m68kbsd.h param.h diff --git a/gnu/usr.bin/gdb/config/m-m68kbsd.h b/gnu/usr.bin/gdb/config/m-m68kbsd.h new file mode 100644 index 000000000000..47cd688c1b44 --- /dev/null +++ b/gnu/usr.bin/gdb/config/m-m68kbsd.h @@ -0,0 +1,543 @@ +/*- + * This code is derived from software copyrighted by the Free Software + * Foundation. + * + * Modified 1991 by Donn Seeley at UUNET Technologies, Inc. + * Modified 1990 by Van Jacobson at Lawrence Berkeley Laboratory. + * + * from: @(#)m-hp300bsd.h 6.8 (Berkeley) 5/8/91 + * $Id: m-m68kbsd.h,v 1.1 1993/12/23 14:02:21 cgd Exp $ + */ + +/* Parameters for execution on a Hewlett-Packard 9000/300, running bsd. + Copyright (C) 1986, 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. */ + +/* Describe the endian nature of this machine. */ +#define BITS_BIG_ENDIAN +#define BYTES_BIG_ENDIAN +#define WORDS_BIG_ENDIAN + +/* + * Configuration file for HP9000/300 series machine running + * University of Utah's 4.3bsd port. This is NOT for HP-UX. + * Problems to hpbsd-bugs@cs.utah.edu + */ + +#ifndef hp300 +#define hp300 +#endif + +/* Library stuff: POSIX tty (not supported yet), V7 tty (sigh), vprintf. */ + +#define HAVE_TERMIOS 1 +#define USE_OLD_TTY 1 +#define HAVE_VPRINTF 1 + +/* We support local and remote kernel debugging. */ + +#define KERNELDEBUG 1 + +/* Watch out for NaNs */ + +#define IEEE_FLOAT + +/* We do long longs. */ + +#define LONG_LONG + +/* Get rid of any system-imposed stack limit if possible. */ + +#define SET_STACK_LIMIT_HUGE + +/* 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 + +/* Debugger information will be in DBX format. */ + +#define READ_DBX_FORMAT + +/* Don't implement the attach and detach commands. */ + +/* #define ATTACH_DETACH */ + +/* 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 int op = read_memory_integer (pc, 2); \ + if (op == 0047126) \ + pc += 4; /* Skip link #word */ \ + else if (op == 0044016) \ + pc += 6; /* Skip link #long */ \ +} + +/* 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) \ +read_memory_integer (read_register (SP_REGNUM), 4) + +/* This is the amount to subtract from u.u_ar0 + to get the offset in the core file of the register values. */ + +#ifndef NEWVM +#define KERNEL_U_ADDR 0x00816000 +#define STACK_END_ADDR 0xfff00000 +#else +#include +#define KERNEL_U_ADDR USRSTACK +#define SZ_SIGTRAMP 20 +#define STACK_END_ADDR (USRSTACK - SZ_SIGTRAMP) +#endif + +/* Same as offsetof macro from stddef.h (which 4.3BSD doesn't have). */ +#define my_offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER) + +#ifndef NEWVM +/* On the HP300, sigtramp is in the u area. Gak! User struct is not + mapped to the same virtual address in user/kernel address space + (hence STACK_END_ADDR as opposed to KERNEL_U_ADDR). */ +#define IN_SIGTRAMP(pc, name) \ + ((pc) >= STACK_END_ADDR + my_offsetof (struct user, u_pcb.pcb_sigc[0]) \ + && (pc) < STACK_END_ADDR + my_offsetof (struct user, u_pcb.pcb_sigc[12]) \ + ) +#else +#define IN_SIGTRAMP(pc, name) ((pc) >= STACK_END_ADDR && (pc) < USRSTACK) +#endif + +/* Stack grows downward. */ + +#define INNER_THAN < + +/* Sequence of bytes for breakpoint instruction. */ + +#define BREAKPOINT {0x4e, 0x42} + +/* 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 2 + +/* Nonzero if instruction at PC is a return instruction. */ + +/* Allow any of the return instructions, including a trapv and a return + from interupt. */ +#define ABOUT_TO_RETURN(pc) ((read_memory_integer (pc, 2) & ~3) == 0x4e74) + +/* Return 1 if P points to an invalid floating point value. */ + +#define INVALID_FLOAT(p, len) 0 /* Just a first guess; not checked */ + +/* Largest integer type */ +#define LONGEST long long + +/* Name of the builtin type for the LONGEST type above. */ +#define BUILTIN_TYPE_LONGEST builtin_type_long_long + +/* Say how long (ordinary) registers are. */ + +#define REGISTER_TYPE long + +/* Number of machine registers */ + +#define NUM_REGS 29 + +/* Initializer for an array of names of registers. + There should be NUM_REGS strings in this initializer. */ + +#define REGISTER_NAMES \ + {"d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", \ + "a0", "a1", "a2", "a3", "a4", "a5", "a6", "sp", \ + "ps", "pc", \ + "fp0", "fp1", "fp2", "fp3", "fp4", "fp5", "fp6", "fp7", \ + "fpcontrol", "fpstatus", "fpiaddr" } + +/* 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 FP_REGNUM 14 /* Contains address of executing stack frame */ +#define SP_REGNUM 15 /* Contains address of top of stack */ +#define PS_REGNUM 16 /* Contains processor status */ +#define PC_REGNUM 17 /* Contains program counter */ +#define FP0_REGNUM 18 /* Floating point register 0 */ +#define FPC_REGNUM 26 /* 68881 control register */ +#define FPS_REGNUM 27 /* 68881 status register */ + +/* Total amount of space needed to store our copies of the machine's + register state, the array `registers'. */ +#define REGISTER_BYTES (16*4+8*12+8+12) + +/* Index within `registers' of the first byte of the space for + register N. */ + +#define REGISTER_BYTE(N) \ + ((N) >= FPC_REGNUM ? (((N) - FPC_REGNUM) * 4) + 168 \ + : (N) >= FP0_REGNUM ? (((N) - FP0_REGNUM) * 12) + 72 \ + : (N) * 4) + +/* Number of bytes of storage in the actual machine representation + for register N. On the 68000, all regs are 4 bytes + except the floating point regs which are 12 bytes. */ +/* Note that the unsigned cast here forces the result of the + subtractiion to very high positive values if N < FP0_REGNUM */ + +#define REGISTER_RAW_SIZE(N) (((unsigned)(N) - FP0_REGNUM) < 8 ? 12 : 4) + +/* Number of bytes of storage in the program's representation + for register N. On the 68000, all regs are 4 bytes + except the floating point regs which are 8-byte doubles. */ + +#define REGISTER_VIRTUAL_SIZE(N) (((unsigned)(N) - FP0_REGNUM) < 8 ? 8 : 4) + +/* Largest value REGISTER_RAW_SIZE can have. */ + +#define MAX_REGISTER_RAW_SIZE 12 + +/* 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) (((unsigned)(N) - FP0_REGNUM) < 8) + +/* Convert data from raw format for register REGNUM + to virtual format for register REGNUM. */ + +#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO) \ +{ if ((REGNUM) >= FP0_REGNUM && (REGNUM) < FPC_REGNUM) \ + convert_from_68881 ((FROM), (TO)); \ + else \ + 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) \ +{ if ((REGNUM) >= FP0_REGNUM && (REGNUM) < FPC_REGNUM) \ + convert_to_68881 ((FROM), (TO)); \ + else \ + bcopy ((FROM), (TO), 4); } + +/* Return the GDB type object for the "standard" data type + of data in register N. */ + +#define REGISTER_VIRTUAL_TYPE(N) \ + (((unsigned)(N) - FP0_REGNUM) < 8 ? builtin_type_double : 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 (9, (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 ((char *)(REGBUF) + \ + (TYPE_LENGTH (TYPE) < 4 ? 4 - TYPE_LENGTH (TYPE) : 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 (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)) + +/* This is a piece of magic that is given a register number REGNO + and as BLOCKEND the address in the system of the end of the user structure + and stores in ADDR the address in the kernel or core dump + of that register. */ + +#define REGISTER_U_ADDR(addr, blockend, regno) \ +{ \ + if (regno < PS_REGNUM) \ + addr = (int) &((struct frame *)(blockend))->f_regs[regno]; \ + else if (regno == PS_REGNUM) \ + addr = (int) &((struct frame *)(blockend))->f_stackadj; \ + else if (regno == PC_REGNUM) \ + addr = (int) &((struct frame *)(blockend))->f_pc; \ + else if (regno < FPC_REGNUM) \ + addr = (int) \ + &((struct user *)0)->u_pcb.pcb_fpregs.fpf_regs[((regno)-FP0_REGNUM)*3];\ + else if (regno == FPC_REGNUM) \ + addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpcr; \ + else if (regno == FPS_REGNUM) \ + addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpsr; \ + else \ + addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpiar; \ +} + +/* 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 Sun, the frame's nominal address + is the address of a 4-byte word containing the calling frame's address. */ + +#define FRAME_CHAIN(thisframe) \ + (outside_startup_file ((thisframe)->pc) ? \ + read_memory_integer ((thisframe)->frame, 4) :\ + 0) + +#ifdef KERNELDEBUG +#ifdef NEWVM +#define KERNSTACK_TOP ((unsigned long)KERNEL_U_ADDR + UPAGES*NBPG) +#else +#define KERNSTACK_TOP (KERNEL_U_ADDR + 0x3000) /* UPAGES * NBPG */ +#endif +extern int kernel_debugging; +#define FRAME_CHAIN_VALID(chain, thisframe) \ + (chain != 0 && \ + !kernel_debugging ? outside_startup_file(FRAME_SAVED_PC(thisframe)) :\ + (chain >= read_register(SP_REGNUM) && chain < KERNSTACK_TOP)) +#else +#define FRAME_CHAIN_VALID(chain, thisframe) \ + (chain != 0 && (outside_startup_file (FRAME_SAVED_PC (thisframe)))) +#endif + +#define FRAME_CHAIN_COMBINE(chain, thisframe) (chain) + +/* Define other aspects of the stack frame. */ + +/* A macro that tells us whether the function invocation represented + by FI does not have a frame on the stack associated with it. If it + does not, FRAMELESS is set to 1, else 0. */ +#define FRAMELESS_FUNCTION_INVOCATION(FI, FRAMELESS) \ + FRAMELESS_LOOK_FOR_PROLOGUE(FI, FRAMELESS) + +#define FRAME_SAVED_PC(FRAME) (read_memory_integer ((FRAME)->frame + 4, 4)) + +#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame) + +#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame) + +/* Set VAL to the number of args passed to frame described by FI. + Can set VAL to -1, meaning no way to tell. */ + +/* Note that we may not be able to tell how many args there are + now that the C compiler delays popping them. */ + +#define FRAME_NUM_ARGS(val, fi) \ +{ register CORE_ADDR pc = FRAME_SAVED_PC (fi); \ + register int insn = 0177777 & read_memory_integer (pc, 2); \ + if (insn == 0047757 || insn == 0157374) /* lea W(sp),sp or addaw #W,sp */ \ + val = read_memory_integer (pc + 2, 2); \ + else if ((insn & 0170777) == 0050217 /* addql #N, sp */ \ + || (insn & 0170777) == 0050117) /* addqw */ \ + { val = (insn >> 9) & 7; if (val == 0) val = 8; } \ + else if (insn == 0157774) /* addal #WW, sp */ \ + val = read_memory_integer (pc + 2, 4); \ + else \ + val = -1; \ + val >>= 2; } + +/* 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 regnum; \ + register int regmask; \ + register CORE_ADDR next_addr; \ + register CORE_ADDR pc; \ + int nextinsn; \ + bzero (&frame_saved_regs, sizeof frame_saved_regs); \ + if ((frame_info)->next \ + && (frame_info)->next->frame < (frame_info)->pc \ + && (frame_info)->pc < (frame_info)->frame) \ + { goto lose; } \ + else \ + { pc = get_pc_function_start ((frame_info)->pc); \ + /* Verify we have a link a6 instruction next; \ + if not we lose. If we win, find the address above the saved \ + regs using the amount of storage from the link instruction. */\ + if (044016 == read_memory_integer (pc, 2)) \ + next_addr = (frame_info)->frame + read_memory_integer (pc += 2, 4), pc+=4; \ + else if (047126 == read_memory_integer (pc, 2)) \ + next_addr = (frame_info)->frame + read_memory_integer (pc += 2, 2), pc+=2; \ + else goto lose; \ + /* If have an addal #-n, sp next, adjust next_addr. */ \ + if ((0177777 & read_memory_integer (pc, 2)) == 0157774) \ + next_addr += read_memory_integer (pc += 2, 4), pc += 4; \ + } \ + /* next should be a moveml to (sp) or -(sp) or a movl r,-(sp) */ \ + regmask = read_memory_integer (pc + 2, 2); \ + /* But before that can come an fmovem. Check for it. */ \ + nextinsn = 0xffff & read_memory_integer (pc, 2); \ + if (0xf227 == nextinsn \ + && (regmask & 0xff00) == 0xe000) \ + { pc += 4; /* Regmask's low bit is for register fp7, the first pushed */ \ + for (regnum = FP0_REGNUM + 7; regnum >= FP0_REGNUM; regnum--, regmask >>= 1) \ + if (regmask & 1) \ + (frame_saved_regs).regs[regnum] = (next_addr -= 12); \ + regmask = read_memory_integer (pc + 2, 2); } \ + if (0044327 == read_memory_integer (pc, 2)) \ + { pc += 4; /* Regmask's low bit is for register 0, the first written */ \ + for (regnum = 0; regnum < 16; regnum++, regmask >>= 1) \ + if (regmask & 1) \ + (frame_saved_regs).regs[regnum] = (next_addr += 4) - 4; } \ + else if (0044347 == read_memory_integer (pc, 2)) \ + { pc += 4; /* Regmask's low bit is for register 15, the first pushed */ \ + for (regnum = 15; regnum >= 0; regnum--, regmask >>= 1) \ + if (regmask & 1) \ + (frame_saved_regs).regs[regnum] = (next_addr -= 4); } \ + else if (0x2f00 == (0xfff0 & read_memory_integer (pc, 2))) \ + { regnum = 0xf & read_memory_integer (pc, 2); pc += 2; \ + (frame_saved_regs).regs[regnum] = (next_addr -= 4); } \ + /* fmovemx to index of sp may follow. */ \ + regmask = read_memory_integer (pc + 2, 2); \ + nextinsn = 0xffff & read_memory_integer (pc, 2); \ + if (0xf236 == nextinsn \ + && (regmask & 0xff00) == 0xf000) \ + { pc += 10; /* Regmask's low bit is for register fp0, the first written */ \ + for (regnum = FP0_REGNUM + 7; regnum >= FP0_REGNUM; regnum--, regmask >>= 1) \ + if (regmask & 1) \ + (frame_saved_regs).regs[regnum] = (next_addr += 12) - 12; \ + regmask = read_memory_integer (pc + 2, 2); } \ + /* clrw -(sp); movw ccr,-(sp) may follow. */ \ + if (0x426742e7 == read_memory_integer (pc, 4)) \ + (frame_saved_regs).regs[PS_REGNUM] = (next_addr -= 4); \ + lose: ; \ + (frame_saved_regs).regs[SP_REGNUM] = (frame_info)->frame + 8; \ + (frame_saved_regs).regs[FP_REGNUM] = (frame_info)->frame; \ + (frame_saved_regs).regs[PC_REGNUM] = (frame_info)->frame + 4; \ +} + + +/* Discard from the stack the innermost frame, + restoring all saved 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; \ + char raw_buffer[12]; \ + fi = get_frame_info (frame); \ + fp = fi->frame; \ + get_frame_saved_regs (fi, &fsr); \ + for (regnum = FP0_REGNUM + 7; regnum >= FP0_REGNUM; regnum--) \ + if (fsr.regs[regnum]) \ + { read_memory (fsr.regs[regnum], raw_buffer, 12); \ + write_register_bytes (REGISTER_BYTE (regnum), raw_buffer, 12); }\ + for (regnum = FP_REGNUM - 1; regnum >= 0; regnum--) \ + if (fsr.regs[regnum]) \ + write_register (regnum, read_memory_integer (fsr.regs[regnum], 4)); \ + if (fsr.regs[PS_REGNUM]) \ + write_register (PS_REGNUM, read_memory_integer (fsr.regs[PS_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 ())); } + +#define NEW_CALL_FUNCTION + +/* Interface definitions for kernel debugger KDB. */ + +/* Map machine fault codes into signal numbers. + First subtract 0, divide by 4, then index in a table. + Faults for which the entry in this table is 0 + are not handled by KDB; the program's own trap handler + gets to handle then. */ + +#define FAULT_CODE_ORIGIN 0 +#define FAULT_CODE_UNITS 4 +#define FAULT_TABLE \ +{ 0, 0, 0, 0, SIGTRAP, 0, 0, 0, \ + 0, SIGTRAP, 0, 0, 0, 0, 0, SIGKILL, \ + 0, 0, 0, 0, 0, 0, 0, 0, \ + SIGILL } + +/* Start running with a stack stretching from BEG to END. + BEG and END should be symbols meaningful to the assembler. + This is used only for kdb. */ + +#define INIT_STACK(beg, end) \ +{ asm (".globl end"); \ + asm ("movel #end, sp"); \ + asm ("movel #0,a6"); } + +/* Push the frame pointer register on the stack. */ +#define PUSH_FRAME_PTR \ + asm ("movel a6,sp@-"); + +/* Copy the top-of-stack to the frame pointer register. */ +#define POP_FRAME_PTR \ + asm ("movl sp@,a6"); + +/* After KDB is entered by a fault, push all registers + that GDB thinks about (all NUM_REGS of them), + so that they appear in order of ascending GDB register number. + The fault code will be on the stack beyond the last register. */ + +#define PUSH_REGISTERS \ +{ asm ("clrw -(sp)"); \ + asm ("pea sp@(10)"); \ + asm ("movem #0xfffe,sp@-"); } + +/* Assuming the registers (including processor status) have been + pushed on the stack in order of ascending GDB register number, + restore them and return to the address in the saved PC register. */ + +#define POP_REGISTERS \ +{ asm ("subil #8,sp@(28)"); \ + asm ("movem sp@,#0xffff"); \ + asm ("rte"); }