* Merge in HPPA/BSD patches from Utah:

	* defs.h:  Add const to 2nd arg of psignal prototype.
	* hppah-tdep.c:  Renamed to hppa-tdep.c 'cuz it's common code with
	BSD now.
	* hppab-core.c:  Deleted.  No longer useful.
	* hppab-nat.c:  #include more files.  Use PT_WUREGS, not
	PT_WRITE_U.
	* hppab-tdep.c:  Deleted.  Supplanted by hppa-tdep.c.
	* config/pa/hppabsd.mh (NATDEPFILES):  Remove hppab-core.o.
	* config/pa/hppabsd.mt (TDEPFILES):  hppab-tdep.o => hppa-tdep.o
	* config/pa/hppahpux.mt (TDEPFILES):  hppab-tdep.o => hppa-tdep.o
	* config/pa/xm-hppab.h:  #define SET_STACK_LIMIT_HUGE.

1 files changed, 0 insertions, 1421 deletions

diff --git a/gdb/hppab-tdep.c b/gdb/hppab-tdep.c
index 39d01cb..e69de29 100644
--- a/gdb/hppab-tdep.c
+++ b/gdb/hppab-tdep.c
@@ -1,1421 +0,0 @@
-/* Machine-dependent code which would otherwise be in inflow.c and core.c,
-   for GDB, the GNU debugger.  This code is for the HP PA-RISC cpu.
-   Copyright 1986, 1987, 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
-
-   Contributed by the Center for Software Science at the
-   University of Utah (pa-gdb-bugs@cs.utah.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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
-
-#include "defs.h"
-#include "frame.h"
-#include "inferior.h"
-#include "value.h"
-
-/* For argument passing to the inferior */
-#include "symtab.h"
-
-#ifdef USG
-#include <sys/types.h>
-#endif
-
-#include <sys/param.h>
-#include <sys/dir.h>
-#include <signal.h>
-#include <sys/ioctl.h>
-
-#ifdef COFF_ENCAPSULATE
-#include "a.out.encap.h"
-#else
-#include <a.out.h>
-#endif
-#ifndef N_SET_MAGIC
-#define N_SET_MAGIC(exec, val) ((exec).a_magic = (val))
-#endif
-
-/*#include <sys/user.h>		After a.out.h  */
-#include <sys/file.h>
-#include <sys/stat.h>
-#include <machine/psl.h>
-
-#ifdef KERNELDEBUG
-#include <sys/vmmac.h>
-#include <machine/machparam.h>
-#include <machine/vmparam.h>
-#include <machine/pde.h>
-#include <machine/cpu.h>
-#include <machine/iomod.h>
-#include <machine/pcb.h>
-#include <machine/rpb.h>
-#include <ctype.h>
-
-extern int kernel_debugging;
-extern CORE_ADDR startup_file_start;
-extern CORE_ADDR startup_file_end;
-
-#define	KERNOFF		((unsigned)KERNBASE)
-#define	INKERNEL(x)	((x) >= KERNOFF && (x) < KERNOFF + ctob(slr))
-
-static int ok_to_cache();
-static void set_kernel_boundaries();
-
-int devmem = 0;
-int vtophys_ready = 0;
-int kerneltype;
-#define	OS_BSD	1
-#define	OS_MACH	2
-#endif
-
-#include "gdbcore.h"
-#include "gdbcmd.h"
-
-extern int errno;
-
-
-
-
-
-
-/* Last modification time of executable file.
-   Also used in source.c to compare against mtime of a source file.  */
-
-extern int exec_mtime;
-
-/* Virtual addresses of bounds of the two areas of memory in the core file.  */
-
-/* extern CORE_ADDR data_start; */
-extern CORE_ADDR data_end;
-extern CORE_ADDR stack_start;
-extern CORE_ADDR stack_end;
-
-/* Virtual addresses of bounds of two areas of memory in the exec file.
-   Note that the data area in the exec file is used only when there is no core file.  */
-
-extern CORE_ADDR text_start;
-extern CORE_ADDR text_end;
-
-extern CORE_ADDR exec_data_start;
-extern CORE_ADDR exec_data_end;
-
-/* Address in executable file of start of text area data.  */
-
-extern int text_offset;
-
-/* Address in executable file of start of data area data.  */
-
-extern int exec_data_offset;
-
-/* Address in core file of start of data area data.  */
-
-extern int data_offset;
-
-/* Address in core file of start of stack area data.  */
-
-extern int stack_offset;
-
-struct header file_hdr;
-struct som_exec_auxhdr exec_hdr;
-
-#ifdef KERNELDEBUG
-/*
- * Kernel debugging routines.
- */
-
-static struct pcb pcb;
-static struct pde *pdir;
-static struct hte *htbl;
-static u_int npdir, nhtbl;
-
-static CORE_ADDR
-ksym_lookup(name)
-	char *name;
-{
-	struct symbol *sym;
-	int i;
-
-	if ((i = lookup_misc_func(name)) < 0)
-		error("kernel symbol `%s' not found.", name);
-
-	return (misc_function_vector[i].address);
-}
-
-/*
- * (re-)set the variables that tell "inside_entry_file" where to end
- * a stack backtrace.
- */
-void
-set_kernel_boundaries()
-{
-	switch (kerneltype) {
-	case OS_MACH:
-		startup_file_start = ksym_lookup("$syscall");
-		startup_file_end = ksym_lookup("trap");
-		break;
-	case OS_BSD:
-		startup_file_start = ksym_lookup("syscallinit");
-		startup_file_end = ksym_lookup("$syscallexit");
-		break;
-	}
-}
-
-/*
- * return true if 'len' bytes starting at 'addr' can be read out as
- * longwords and/or locally cached (this is mostly for memory mapped
- * i/o register access when debugging remote kernels).
- */
-static int
-ok_to_cache(addr, len)
-{
-	static CORE_ADDR ioptr;
-
-	if (! ioptr)
-		ioptr = ksym_lookup("ioptr");
-
-	if (addr >= ioptr && addr < SPA_HIGH)
-		return (0);
-
-	return (1);
-}
-
-static
-physrd(addr, dat, len)
-	u_int addr;
-	char *dat;
-{
-	if (lseek(corechan, addr, L_SET) == -1)
-		return (-1);
-	if (read(corechan, dat, len) != len)
-		return (-1);
-
-	return (0);
-}
-
-/*
- * When looking at kernel data space through /dev/mem or with a core file, do
- * virtual memory mapping.
- */
-static CORE_ADDR
-vtophys(space, addr)
-	unsigned space;
-	CORE_ADDR addr;
-{
-	struct pde *pptr;
-	u_int hindx, vpageno, ppageno;
-	CORE_ADDR phys = ~0;
-
-	if (!vtophys_ready) {
-		phys = addr;		/* XXX for kvread */
-	} else if (kerneltype == OS_BSD) {
-		/* make offset into a virtual page no */
-		vpageno = btop(addr);
-		/*
-		 *  Determine index into hash table, initialize pptr to this
-		 *  entry (since first word of pte & hte are same), and set
-		 *  physical page number for first entry in chain.
-		 */
-		hindx = pdirhash(space, addr) & (nhtbl-1);
-		pptr = (struct pde *) &htbl[hindx];
-		ppageno = pptr->pde_next;
-		while (1) {
-			if (pptr->pde_end)
-				break;
-			pptr = &pdir[ppageno];
-			/*
-			 *  If space id & virtual page number match, return
-			 *  "next PDIR entry of previous PDIR entry" as the
-			 *  physical page or'd with offset into page.
-			 */
-			if (pptr->pde_space == space &&
-			    pptr->pde_page == vpageno) {
-				phys = (CORE_ADDR) ((u_int)ptob(ppageno) |
-						    (addr & PGOFSET));
-				break;
-			}
-			ppageno = pptr->pde_next;
-		}
-	}
-#ifdef MACHKERNELDEBUG
-	else if (kerneltype == OS_MACH) {
-	  mach_vtophys(space, addr, &phys);
-	}
-#endif
-#if 0
-	printf("vtophys(%x.%x) -> %x\n", space, addr, phys);
-#endif
-	return (phys);
-}
-
-static
-kvread(addr)
-	CORE_ADDR addr;
-{
-	CORE_ADDR paddr;
-
-	paddr = vtophys(0, addr);
-	if (paddr != ~0)
-		if (physrd(paddr, (char *)&addr, sizeof(addr)) == 0)
-			return (addr);
-
-	return (~0);
-}
-
-static void
-read_pcb(addr)
-     u_int addr;
-{
-	int i, off;
-	extern char registers[];
-	static int reg2pcb[] = {
-		/* RPB */
-		-1,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16, 17,
-		18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33,
-		45, 52, 51, 75, 74, 49, 53, 54, 55, 56, -1, 70, 66, 67, 68, 69,
-		71, 72, 73, 34, 42, 43, 44, 46, 47, 58, 59, 60, -1, -1, -1, -1,
-		-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-		-1, -1, -1, -1,
-		/* BSD */
-		-1,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,
-		15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
-		43, 64, 67, 68, 67, 47, 51, 52, 53, 54, -1, 35, 31, 32, 33, 34,
-		36, 37, 38, 39, 40, 41, 42, 44, 45, 56, 57, 58,102,103,104, -1,
-		70, 71, 72, 73, 74, 75, 76, 77, 78, 80, 82, 84, 86, 88, 90, 92,
-		94, 96, 98, 100,
-		/* Mach */
-		-1, -1,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13,
-		14, 15, 16, -1, -1, -1, -1, -1, -1, -1, -1, 17, -1, -1, 18, -1,
-		25, -1, -1, -1, -1, 30, -1, -1, -1, -1, -1, 20, -1, -1, -1, 19,
-		21, 22, 23, 24, 26, 27, -1, 28, 29, -1, -1, -1, -1, -1, -1, -1,
-		34, 35, 36, 37, 38, 39, 40, 41, -1, -1, -1, -1, -1, -1, -1, -1,
-		42, 44, 46, 48
-	};
-	static struct rpb *rpbaddr = (struct rpb *) 0;
-	static u_int rpbpcbaddr = 0;
-
-	if (!remote_debugging) {
-		/*
-		 * If we are debugging a post-mortem and this is the first
-		 * call of read_pcb, read the RPB.  Also assoicate the
-		 * thread/proc running at the time with the RPB.
-		 */
-		if (!devmem && rpbpcbaddr == 0) {
-			CORE_ADDR raddr = ksym_lookup("rpb");
-			int usepcb = 1;
-
-			if (raddr != ~0) {
-				rpbaddr = (struct rpb *) malloc(sizeof *rpbaddr);
-				if (!physrd(raddr, (char *)rpbaddr, sizeof *rpbaddr)) {
-					rpbpcbaddr = addr;
-					usepcb = 0;
-				}
-			}
-			if (usepcb) {
-				error("cannot read rpb, using pcb for registers\n");
-				if (rpbaddr)
-					free((char *)rpbaddr);
-				rpbpcbaddr = ~0;
-			}
-		}
-		if (physrd (addr, (char *)&pcb, sizeof pcb))
-			error ("cannot read pcb at %x.\n", addr);
-	} else {
-		if (remote_read_inferior_memory(addr, (char *)&pcb, sizeof pcb))
-			error ("cannot read pcb at %x.\n", addr);
-	}
-
-	if (kerneltype == OS_BSD) {
-		printf("p0br %lx p0lr %lx p1br %lx p1lr %lx\n",
-		       pcb.pcb_p0br, pcb.pcb_p0lr, pcb.pcb_p1br, pcb.pcb_p1lr);
-		off = NUM_REGS;
-	} else {
-		printf("pcb %lx psw %lx ksp %lx\n",
-		       addr, ((int *)&pcb)[31], ((int *)&pcb)[32]);
-		off = NUM_REGS * 2;
-	}
-	/*
-	 * get the register values out of the sys pcb and
-	 * store them where `read_register' will find them.
-	 */
-	bzero(registers, REGISTER_BYTES);
-	for (i = 0; i < NUM_REGS; ++i)
-		if (reg2pcb[i+off] != -1)
-			supply_register(i, &((int *)&pcb)[reg2pcb[i+off]]);
-	/*
-	 * If the RPB is valid for this thread/proc use the register values
-	 * contained there.
-	 */
-	if (addr == rpbpcbaddr) {
-		off = 0;
-		for (i = 0; i < NUM_REGS; ++i)
-			if (reg2pcb[i+off] != -1)
-				supply_register(i, &((int *)rpbaddr)[reg2pcb[i+off]]);
-	}
-}
-
-void
-setup_kernel_debugging()
-{
-	struct stat stb;
-	CORE_ADDR addr;
-
-	fstat(corechan, &stb);
-	devmem = 0;
-	if ((stb.st_mode & S_IFMT) == S_IFCHR && stb.st_rdev == makedev(2, 0))
-		devmem = 1;
-
-	/* XXX */
-	if (lookup_misc_func("Sysmap") < 0)
-		kerneltype = OS_MACH;
-	else
-		kerneltype = OS_BSD;
-
-	if (kerneltype == OS_BSD) {
-		int len, err = 0;
-
-		/*
-		 * Hash table and PDIR are equivalently mapped
-		 */
-		nhtbl = kvread(ksym_lookup("nhtbl"));
-		if (nhtbl != ~0) {
-			len = nhtbl * sizeof(*htbl);
-			htbl = (struct hte *) malloc(len);
-			if (htbl) {
-				addr = kvread(ksym_lookup("htbl"));
-				if (physrd(addr, (char *)htbl, len))
-					err++;
-			} else
-				err++;
-		} else
-			err++;
-		npdir = kvread(ksym_lookup("npdir"));
-		if (npdir != ~0) {
-			len = npdir * sizeof(*pdir);
-			pdir = (struct pde *) malloc(len);
-			if (pdir) {
-				addr = kvread(ksym_lookup("pdir"));
-				if (physrd(addr, (char *)pdir, len))
-					err++;
-			} else
-				err++;
-		} else
-			err++;
-		if (err) {
-			error("cannot read PDIR/HTBL");
-			return;
-		}
-		vtophys_ready = 1;
-
-		/*
-		 * pcb where "panic" saved registers in first thing in
-		 * current u-area.  The current u-area is pointed to by
-		 * "uptr".
-		 */
-		addr = kvread(ksym_lookup("uptr"));
-		if (addr == ~0) {
-			error("cannot read current u-area address");
-			return;
-		}
-		read_pcb(vtophys(0, addr));	/* XXX space */
-		if (!devmem) {
-			/* find stack frame */
-			CORE_ADDR panicstr;
-			char buf[256];
-			register char *cp;
-			
-			panicstr = kvread(ksym_lookup("panicstr"));
-			if (panicstr == ~0)
-				return;
-			kernel_core_file_hook(panicstr, buf, sizeof(buf));
-			for (cp = buf; cp < &buf[sizeof(buf)] && *cp; cp++)
-				if (!isascii(*cp) || (!isprint(*cp) && !isspace(*cp)))
-					*cp = '?';
-			if (*cp)
-				*cp = '\0';
-			printf("panic: %s\n", buf);
-		}
-	}
-#ifdef MACHKERNELDEBUG
-	else {
-		int *thread;
-
-		/*
-		 * Set up address translation
-		 */
-		if (mach_vtophys_init() == 0) {
-			error("cannot initialize vtophys for Mach");
-			return;
-		}
-		vtophys_ready = 1;
-
-		/*
-		 * Locate active thread and read PCB
-		 * XXX MAJOR HACK
-		 *	- assumes uni-processor
-		 *	- assumes position of pcb to avoid mach includes
-		 */
-		thread = (int *)kvread(ksym_lookup("active_threads"));
-		addr = kvread(&thread[9]);		/* XXX: pcb addr */
-		read_pcb(vtophys(0, addr));
-	}
-#endif
-}
-
-vtop_command(arg)
-	char *arg;
-{
-	u_int sp, off, pa;
-
-	if (!arg)
-		error_no_arg("kernel virtual address");
-	if (!kernel_debugging)
-		error("not debugging kernel");
-
-	sp = 0;		/* XXX */
-	off = (u_int) parse_and_eval_address(arg);
-	pa = vtophys(sp, off);
-	printf("%lx.%lx -> ", sp, off);
-	if (pa == ~0)
-		printf("<invalid>\n");
-	else
-		printf("%lx\n", pa);
-}
-
-set_paddr_command(arg)
-	char *arg;
-{
-	u_int addr;
-
-	if (!arg) {
-		if (kerneltype == OS_BSD)
-			error_no_arg("ps-style address for new process");
-		else
-			error_no_arg("thread structure virtual address");
-	}
-	if (!kernel_debugging)
-		error("not debugging kernel");
-
-	addr = (u_int) parse_and_eval_address(arg);
-	if (kerneltype == OS_BSD)
-		addr = ctob(addr);
-	else {
-		addr = kvread(&(((int *)addr)[9]));	/* XXX: pcb addr */
-		addr = vtophys(0, addr);		/* XXX space */
-	}
-	read_pcb(addr);
-
-	flush_cached_frames();
-	set_current_frame(create_new_frame(read_register(FP_REGNUM), read_pc()));
-	select_frame(get_current_frame(), 0);
-}
-
-/*
- * read len bytes from kernel virtual address 'addr' into local 
- * buffer 'buf'.  Return 0 if read ok, 1 otherwise.  On read
- * errors, portion of buffer not read is zeroed.
- */
-kernel_core_file_hook(addr, buf, len)
-	CORE_ADDR addr;
-	char *buf;
-	int len;
-{
-	int i;
-	CORE_ADDR paddr;
-
-	while (len > 0) {
-		paddr = vtophys(0, addr);	/* XXX space */
-		if (paddr == ~0) {
-			bzero(buf, len);
-			return (1);
-		}
-		/* we can't read across a page boundary */
-		i = min(len, NBPG - (addr & PGOFSET));
-		if (physrd(paddr, buf, i)) {
-			bzero(buf, len);
-			return (1);
-		}
-		buf += i;
-		addr += i;
-		len -= i;
-	}
-	return (0);
-}
-#endif
-
-
-
-
-
-/* Routines to extract various sized constants out of hppa 
-   instructions. */
-
-/* This assumes that no garbage lies outside of the lower bits of 
-   value. */
-
-int
-sign_extend (val, bits)
-     unsigned val, bits;
-{
-  return (int)(val >> bits - 1 ? (-1 << bits) | val : val);
-}
-
-/* For many immediate values the sign bit is the low bit! */
-
-int
-low_sign_extend (val, bits)
-     unsigned val, bits;
-{
-  return (int)((val & 0x1 ? (-1 << (bits - 1)) : 0) | val >> 1);
-}
-/* extract the immediate field from a ld{bhw}s instruction */
-
-
-
-unsigned
-get_field (val, from, to)
-     unsigned val, from, to;
-{
-  val = val >> 31 - to;
-  return val & ((1 << 32 - from) - 1);
-}
-
-unsigned
-set_field (val, from, to, new_val)
-     unsigned *val, from, to;
-{
-  unsigned mask = ~((1 << (to - from + 1)) << (31 - from));
-  return *val = *val & mask | (new_val << (31 - from));
-}
-
-/* extract a 3-bit space register number from a be, ble, mtsp or mfsp */
-
-extract_3 (word)
-     unsigned word;
-{
-  return GET_FIELD (word, 18, 18) << 2 | GET_FIELD (word, 16, 17);
-}
-       
-extract_5_load (word)
-     unsigned word;
-{
-  return low_sign_extend (word >> 16 & MASK_5, 5);
-}
-
-/* extract the immediate field from a st{bhw}s instruction */
-
-int
-extract_5_store (word)
-     unsigned word;
-{
-  return low_sign_extend (word & MASK_5, 5);
-}
-
-/* extract an 11 bit immediate field */
-
-int
-extract_11 (word)
-     unsigned word;
-{
-  return low_sign_extend (word & MASK_11, 11);
-}
-
-/* extract a 14 bit immediate field */
-
-int
-extract_14 (word)
-     unsigned word;
-{
-  return low_sign_extend (word & MASK_14, 14);
-}
-
-/* deposit a 14 bit constant in a word */
-
-unsigned
-deposit_14 (opnd, word)
-     int opnd;
-     unsigned word;
-{
-  unsigned sign = (opnd < 0 ? 1 : 0);
-
-  return word | ((unsigned)opnd << 1 & MASK_14)  | sign;
-}
-
-/* extract a 21 bit constant */
-
-int
-extract_21 (word)
-     unsigned word;
-{
-  int val;
-
-  word &= MASK_21;
-  word <<= 11;
-  val = GET_FIELD (word, 20, 20);
-  val <<= 11;
-  val |= GET_FIELD (word, 9, 19);
-  val <<= 2;
-  val |= GET_FIELD (word, 5, 6);
-  val <<= 5;
-  val |= GET_FIELD (word, 0, 4);
-  val <<= 2;
-  val |= GET_FIELD (word, 7, 8);
-  return sign_extend (val, 21) << 11;
-}
-
-/* deposit a 21 bit constant in a word. Although 21 bit constants are
-   usually the top 21 bits of a 32 bit constant, we assume that only
-   the low 21 bits of opnd are relevant */
-
-unsigned
-deposit_21 (opnd, word)
-     unsigned opnd, word;
-{
-  unsigned val = 0;
-
-  val |= GET_FIELD (opnd, 11 + 14, 11 + 18);
-  val <<= 2;
-  val |= GET_FIELD (opnd, 11 + 12, 11 + 13);
-  val <<= 2;
-  val |= GET_FIELD (opnd, 11 + 19, 11 + 20);
-  val <<= 11;
-  val |= GET_FIELD (opnd, 11 + 1, 11 + 11);
-  val <<= 1;
-  val |= GET_FIELD (opnd, 11 + 0, 11 + 0);
-  return word | val;
-}
-
-/* extract a 12 bit constant from branch instructions */
-
-int
-extract_12 (word)
-     unsigned word;
-{
-  return sign_extend (GET_FIELD (word, 19, 28) |
-		      GET_FIELD (word, 29, 29) << 10 |
-		      (word & 0x1) << 11, 12) << 2;
-}
-
-/* extract a 17 bit constant from branch instructions, returning the
-   19 bit signed value. */
-
-int
-extract_17 (word)
-     unsigned word;
-{
-  return sign_extend (GET_FIELD (word, 19, 28) |
-		      GET_FIELD (word, 29, 29) << 10 |
-		      GET_FIELD (word, 11, 15) << 11 |
-		      (word & 0x1) << 16, 17) << 2;
-}
-
-
-CORE_ADDR
-frame_saved_pc (frame)
-     FRAME frame;
-{
-  if (get_current_frame () == frame)
-    {
-      struct frame_saved_regs saved_regs;
-
-      get_frame_saved_regs (frame, &saved_regs);
-      if (saved_regs.regs[RP_REGNUM])
-	return read_memory_integer (saved_regs.regs[RP_REGNUM], 4);
-      else
-	return read_register (RP_REGNUM);
-    }
-  return read_memory_integer (frame->frame - 20, 4) & ~0x3;
-}
-
-/* To see if a frame chain is valid, see if the caller looks like it
-   was compiled with gcc. */
-
-int frame_chain_valid (chain, thisframe)
-     FRAME_ADDR chain;
-     FRAME thisframe;
-{
-  if (chain && (chain > 0x60000000 
-		/* || remote_debugging   -this is no longer used */
-#ifdef KERNELDEBUG
-		|| kernel_debugging
-#endif
-		))
-    {
-      CORE_ADDR pc = get_pc_function_start (FRAME_SAVED_PC (thisframe));
-
-      if (!inside_entry_file (pc))
-	return 0;
-      /* look for stw rp, -20(0,sp); copy 4,1; copy sp, 4 */
-      if (read_memory_integer (pc, 4) == 0x6BC23FD9)			
-	pc = pc + 4;							
-      
-      if (read_memory_integer (pc, 4) == 0x8040241 &&
-	  read_memory_integer (pc + 4, 4) == 0x81E0244)			
-	return 1;
-      else
-	return 0;
-    }
-  else
-    return 0;
-}
-
-/* Some helper functions. gcc_p returns 1 if the function beginning at 
-   pc appears to have been compiled with gcc. hpux_cc_p returns 1 if
-   fn was compiled with hpux cc. gcc functions look like :
-
-   stw     rp,-0x14(sp) ; optional
-   or      r4,r0,r1
-   or      sp,r0,r4
-   stwm    r1,framesize(sp)
-
-   hpux cc functions look like:
-
-   stw     rp,-0x14(sp) ; optional.
-   stwm    r3,framesiz(sp)
-   */
-
-gcc_p (pc)
-     CORE_ADDR pc;
-{
-  if (read_memory_integer (pc, 4) == 0x6BC23FD9)			
-    pc = pc + 4;							
-      
-  if (read_memory_integer (pc, 4) == 0x8040241 &&
-      read_memory_integer (pc + 4, 4) == 0x81E0244)			
-    return 1;
-  return 0;
-}
-
-  
-find_dummy_frame_regs (frame, frame_saved_regs)
-     struct frame_info *frame;
-     struct frame_saved_regs *frame_saved_regs;
-{
-  CORE_ADDR fp = frame->frame;
-  int i;
-  
-  frame_saved_regs->regs[RP_REGNUM] = fp - 20 & ~0x3;
-  frame_saved_regs->regs[FP_REGNUM] = fp;
-  frame_saved_regs->regs[1] = fp + 8;
-  frame_saved_regs->regs[3] = fp + 12;
-  for (fp += 16, i = 3; i < 30; fp += 4, i++)
-    frame_saved_regs->regs[i] = fp;
-  frame_saved_regs->regs[31] = fp;
-  fp += 4;
-  for (i = FP0_REGNUM; i < NUM_REGS; i++, fp += 8)
-    frame_saved_regs->regs[i] = fp;
-  /* depend on last increment of fp */
-  frame_saved_regs->regs[IPSW_REGNUM] = fp - 4;
-  frame_saved_regs->regs[SAR_REGNUM] = fp;
-  fp += 4;
-  frame_saved_regs->regs[PCOQ_TAIL_REGNUM] = fp;
-  frame_saved_regs->regs[PCSQ_TAIL_REGNUM] = fp;
-}
-
-CORE_ADDR
-hp_push_arguments (nargs, args, sp, struct_return, struct_addr)
-     int nargs;
-     value *args;
-     CORE_ADDR sp;
-     int struct_return;
-     CORE_ADDR struct_addr;
-{
-  /* array of arguments' offsets */
-  int *offset = (int *)alloca(nargs);
-  int cum = 0;
-  int i, alignment;
-  
-  for (i = 0; i < nargs; i++)
-    {
-      cum += TYPE_LENGTH (VALUE_TYPE (args[i]));
-      /* value must go at proper alignment. Assume alignment is a
-	 power of two.*/
-      alignment = hp_alignof (VALUE_TYPE (args[i]));
-      if (cum % alignment)
-	cum = (cum + alignment) & -alignment;
-      offset[i] = -cum;
-    }
-  for (i == 0; i < nargs; i++)
-    {
-      write_memory (sp + offset[i], VALUE_CONTENTS (args[i]), sizeof(int));
-    }
-  sp += min ((cum + 7) & -8, 48);
-  if (struct_return)
-    write_register (28, struct_addr);
-  return sp + 48;
-}
-
-/* return the alignment of a type in bytes. Structures have the maximum
-   alignment required by their fields. */
-
-int
-hp_alignof (arg)
-     struct type *arg;
-{
-  int max_align, align, i;
-  switch (TYPE_CODE (arg))
-    {
-    case TYPE_CODE_PTR:
-    case TYPE_CODE_INT:
-    case TYPE_CODE_FLT:
-      return TYPE_LENGTH (arg);
-    case TYPE_CODE_ARRAY:
-      return hp_alignof (TYPE_FIELD_TYPE (arg, 0));
-    case TYPE_CODE_STRUCT:
-    case TYPE_CODE_UNION:
-      max_align = 2;
-      for (i = 0; i < TYPE_NFIELDS (arg); i++)
-	{
-	  /* Bit fields have no real alignment. */
-	  if (!TYPE_FIELD_BITPOS (arg, i))
-	    {
-	      align = hp_alignof (TYPE_FIELD_TYPE (arg, i));
-	      max_align = max (max_align, align);
-	    }
-	}
-      return max_align;
-    default:
-      return 4;
-    }
-}
-
-/* Print the register regnum, or all registers if regnum is -1 */
-
-pa_do_registers_info (regnum, fpregs)
-     int regnum;
-     int fpregs;
-{
-  char raw_regs [REGISTER_BYTES];
-  int i;
-  
-  for (i = 0; i < NUM_REGS; i++)
-    read_relative_register_raw_bytes (i, raw_regs + REGISTER_BYTE (i));
-  if (regnum = -1)
-    pa_print_registers (raw_regs, regnum);
-  else if (regnum < FP0_REGNUM)
-    {
-      printf ("%s %x\n", reg_names[regnum], *(long *)(raw_regs +
-						      REGISTER_BYTE (regnum)));
-    }
-  else
-    pa_print_fp_reg (regnum);
-}
-
-pa_print_registers (raw_regs, regnum)
-     char *raw_regs;
-     int regnum;
-{
-  int i;
-
-  for (i = 0; i < 18; i++)
-    printf ("%8.8s: %8x  %8.8s: %8x  %8.8s: %8x  %8.8s: %8x\n",
-		     reg_names[i],
-		     *(int *)(raw_regs + REGISTER_BYTE (i)),
-		     reg_names[i + 18],
-		     *(int *)(raw_regs + REGISTER_BYTE (i + 18)),
-		     reg_names[i + 36],
-		     *(int *)(raw_regs + REGISTER_BYTE (i + 36)),
-		     reg_names[i + 54],
-		     *(int *)(raw_regs + REGISTER_BYTE (i + 54)));
-  for (i = 72; i < NUM_REGS; i++)
-    pa_print_fp_reg (i);
-}
-
-pa_print_fp_reg (i)
-     int i;
-{
-  unsigned char raw_buffer[MAX_REGISTER_RAW_SIZE];
-  unsigned char virtual_buffer[MAX_REGISTER_VIRTUAL_SIZE];
-  REGISTER_TYPE val;
-
-  /* Get the data in raw format, then convert also to virtual format.  */
-  read_relative_register_raw_bytes (i, raw_buffer);
-  REGISTER_CONVERT_TO_VIRTUAL (i, raw_buffer, virtual_buffer);
-
-  fputs_filtered (reg_names[i], stdout);
-  print_spaces_filtered (15 - strlen (reg_names[i]), stdout);
-
-  val_print (REGISTER_VIRTUAL_TYPE (i), virtual_buffer, 0, stdout, 0,
-	     1, 0, Val_pretty_default);
-  printf_filtered ("\n");
-
-}
-
-/*
- * Virtual to physical translation routines for Utah's Mach 3.0
- */
-#ifdef MACHKERNELDEBUG
-
-#define STATIC
-
-#if 0	/* too many includes to resolve, too much crap */
-#include <kern/queue.h>
-#include <vm/pmap.h>	
-#include <mach/vm_prot.h>
-#else
-/* queue.h */
-struct queue_entry {
-	struct queue_entry	*next;		/* next element */
-	struct queue_entry	*prev;		/* previous element */
-};
-
-typedef struct queue_entry	*queue_t;
-typedef	struct queue_entry	queue_head_t;
-typedef	struct queue_entry	queue_chain_t;
-typedef	struct queue_entry	*queue_entry_t;
-
-/* pmap.h */
-#define HP800_HASHSIZE		1024
-#define HP800_HASHSIZE_LOG2	10
-
-#define pmap_hash(space, offset) \
-	(((unsigned) (space) << 5 ^ \
-	  ((unsigned) (offset) >> 19 | (unsigned) (space) << 13) ^ \
-	  (unsigned) (offset) >> 11) & (HP800_HASHSIZE-1))
-
-struct mapping {
-	queue_head_t	hash_link;	/* hash table links */
-	queue_head_t	phys_link;	/* for mappings of a given PA */
-	space_t		space;		/* virtual space */
-	unsigned	offset;		/* virtual page number */
-	unsigned	tlbpage;	/* physical page (for TLB load) */
-	unsigned	tlbprot;	/* prot/access rights (for TLB load) */
-	struct pmap	*pmap;		/* pmap mapping belongs to */
-};
-
-struct phys_entry {
-	queue_head_t	phys_link;	/* head of mappings of a given PA */
-	struct mapping	*writer;	/* mapping with R/W access */
-	unsigned	tlbprot;	/* TLB format protection */
-};
-
-#endif
-
-#define atop(a)		((unsigned)(a) >> 11)
-#define ptoa(p)		((unsigned)(p) << 11)
-#define trunc_page(a)	((unsigned)(a) & ~2047)
-
-STATIC long equiv_end;
-STATIC queue_head_t *Ovtop_table, *vtop_table, *Ofree_mapping, free_mapping;
-STATIC struct phys_entry *Ophys_table, *phys_table;
-STATIC long vm_last_phys, vm_first_phys;
-STATIC struct mapping *firstmap, *lastmap, *Omap_table, *map_table;
-STATIC unsigned Omlow, Omhigh, Omhead, Ovlow, Ovhigh, Oplow, Ophigh;
-STATIC unsigned mlow, mhigh, mhead, vlow, vhigh, plow, phigh;
-STATIC int vtopsize, physsize, mapsize;
-STATIC int kmemfd;
-
-#define IS_OVTOPPTR(p)	((unsigned)(p) >= Ovlow && (unsigned)(p) < Ovhigh)
-#define IS_OMAPPTR(p)	((unsigned)(p) >= Omlow && (unsigned)(p) < Omhigh)
-#define IS_OPHYSPTR(p)	((unsigned)(p) >= Oplow && (unsigned)(p) < Ophigh)
-#define IS_VTOPPTR(p)	((unsigned)(p) >= vlow && (unsigned)(p) < vhigh)
-#define IS_MAPPTR(p)	((unsigned)(p) >= mlow && (unsigned)(p) < mhigh)
-#define IS_PHYSPTR(p)	((unsigned)(p) >= plow && (unsigned)(p) < phigh)
-
-struct mapstate {
-	char	unused;
-	char	flags;
-	short	hashix;
-	short	physix;
-} *mapstate;
-
-/* flags */
-#define M_ISFREE	1
-#define M_ISHASH	2
-#define M_ISPHYS	4
-
-mach_vtophys_init()
-{
-	int errors = 0;
-
-	if (!readdata())
-		errors++;
-	if (!verifydata())
-		errors++;
-	if (!errors)
-		return(1);
-	fflush(stdout);
-	fprintf(stderr,
-		"translate: may not be able to translate all addresses\n");
-	return(0);
-}
-
-mach_vtophys(space, off, pa)
-	unsigned space, off, *pa;
-{
-	register int i;
-	register queue_t qp;
-	register struct mapping *mp;
-	int poff;
-
-	/*
-	 * Kernel IO or equivilently mapped, one to one.
-	 */
-	if (space == 0 && (long)off < equiv_end) {
-		*pa = off;
-		return(1);
-	}
-	/*
-	 * Else look it up in specified space
-	 */
-	poff = off - trunc_page(off);
-	off = trunc_page(off);
-	qp = &vtop_table[pmap_hash(space, off)];
-	for (mp = (struct mapping *)qp->next;
-	     qp != (queue_entry_t)mp;
-	     mp = (struct mapping *)mp->hash_link.next) {
-		if (mp->space == space && mp->offset == off) {
-			*pa = (mp->tlbpage << 7) | poff;
-			return(1);
-		}
-	}
-	return(0);
-}
-
-STATIC
-readdata()
-{
-	char *tmp, *mach_malloc();
-	long size;
-
-	/* easy scalars */
-	mach_read("equiv_end", ~0, (char *)&equiv_end, sizeof equiv_end);
-	mach_read("vm_first_phys", ~0,
-		  (char *)&vm_first_phys, sizeof vm_first_phys);
-	mach_read("vm_last_phys", ~0,
-		  (char *)&vm_last_phys, sizeof vm_last_phys);
-	mach_read("firstmap", ~0, (char *)&firstmap, sizeof firstmap);
-	mach_read("lastmap", ~0, (char *)&lastmap, sizeof lastmap);
-
-	/* virtual to physical hash table */
-	vtopsize = HP800_HASHSIZE;
-	size = vtopsize * sizeof(queue_head_t);
-	tmp = mach_malloc("vtop table", size);
-	mach_read("vtop_table", ~0, (char *)&Ovtop_table, sizeof Ovtop_table);
-	mach_read("vtop table", (CORE_ADDR)Ovtop_table, tmp, size);
-	vtop_table = (queue_head_t *) tmp;
-
-	/* inverted page table */
-	physsize = atop(vm_last_phys - vm_first_phys);
-	size = physsize * sizeof(struct phys_entry);
-	tmp = mach_malloc("phys table", size);
-	mach_read("phys_table", ~0, (char *)&Ophys_table, sizeof Ophys_table);
-	mach_read("phys table", (CORE_ADDR)Ophys_table, tmp, size);
-	phys_table = (struct phys_entry *) tmp;
-
-	/* mapping structures */
-	Ofree_mapping = (queue_head_t *) ksym_lookup("free_mapping");
-	mach_read("free mapping", (CORE_ADDR)Ofree_mapping,
-		  (char *) &free_mapping, sizeof free_mapping);
-	Omap_table = firstmap;
-	mapsize = lastmap - firstmap;
-	size = mapsize * sizeof(struct mapping);
-	tmp = mach_malloc("mapping table", size);
-	mach_read("mapping table", (CORE_ADDR)Omap_table, tmp, size);
-	map_table = (struct mapping *) tmp;
-
-	/* set limits */
-	Ovlow = (unsigned) Ovtop_table;
-	Ovhigh = (unsigned) &Ovtop_table[vtopsize];
-	Oplow = (unsigned) Ophys_table;
-	Ophigh = (unsigned) &Ophys_table[physsize];
-	Omhead = (unsigned) Ofree_mapping;
-	Omlow = (unsigned) firstmap;
-	Omhigh = (unsigned) lastmap;
-	mlow = (unsigned) map_table;
-	mhigh = (unsigned) &map_table[mapsize];
-	mhead = (unsigned) &free_mapping;
-	vlow = (unsigned) vtop_table;
-	vhigh = (unsigned) &vtop_table[vtopsize];
-	plow = (unsigned) phys_table;
-	phigh = (unsigned) &phys_table[physsize];
-
-#if 0
-	fprintf(stderr, "Ovtop [%#x-%#x) Ophys [%#x-%#x) Omap %#x [%#x-%#x)\n",
-		Ovlow, Ovhigh, Oplow, Ophigh, Omhead, Omlow, Omhigh);
-	fprintf(stderr, "vtop [%#x-%#x) phys [%#x-%#x) map %#x [%#x-%#x)\n",
-		vlow, vhigh, plow, phigh, mhead, mlow, mhigh);
-#endif
-	return(adjustdata());
-}
-
-STATIC unsigned
-ptrcvt(ptr)
-	unsigned ptr;
-{
-	unsigned ret;
-	char *str;
-
-	if (ptr == 0) {
-		ret = ptr;
-		str = "null";
-	} else if (IS_OVTOPPTR(ptr)) {
-		ret = vlow + (ptr - Ovlow);
-		str = "vtop";
-	} else if (IS_OPHYSPTR(ptr)) {
-		ret = plow + (ptr - Oplow);
-		str = "phys";
-	} else if (IS_OMAPPTR(ptr)) {
-		ret = mlow + (ptr - Omlow);
-		str = "map";
-	} else if (ptr == Omhead) {
-		ret = mhead;
-		str = "maphead";
-	} else {
-		error("bogus pointer %#x", ptr);
-		str = "wild";
-		ret = ptr;
-	}
-#if 0
-	fprintf(stderr, "%x (%s) -> %x\n", ptr, str, ret);
-#endif
-	return(ret);
-}
-
-STATIC int
-adjustdata()
-{
-	register int i, lim;
-	queue_head_t *nq;
-	struct phys_entry *np;
-	struct mapping *nm;
-
-	/* hash table */
-	lim = vtopsize;
-	for (nq = vtop_table; nq < &vtop_table[lim]; nq++) {
-		nq->next = (queue_entry_t) ptrcvt((unsigned)nq->next);
-		nq->prev = (queue_entry_t) ptrcvt((unsigned)nq->prev);
-	}
-
-	/* IPT */
-	lim = physsize;
-	for (np = phys_table; np < &phys_table[lim]; np++) {
-		np->phys_link.next = (queue_entry_t)
-			ptrcvt((unsigned)np->phys_link.next);
-		np->phys_link.prev = (queue_entry_t)
-			ptrcvt((unsigned)np->phys_link.prev);
-		np->writer = (struct mapping *) ptrcvt((unsigned)np->writer);
-	}
-
-	/* mapping table */
-	free_mapping.next = (queue_entry_t)ptrcvt((unsigned)free_mapping.next);
-	free_mapping.prev = (queue_entry_t)ptrcvt((unsigned)free_mapping.prev);
-	lim = mapsize;
-	for (nm = map_table; nm < &map_table[lim]; nm++) {
-		nm->hash_link.next = (queue_entry_t)
-			ptrcvt((unsigned)nm->hash_link.next);
-		nm->hash_link.prev = (queue_entry_t)
-			ptrcvt((unsigned)nm->hash_link.prev);
-		nm->phys_link.next = (queue_entry_t)
-			ptrcvt((unsigned)nm->phys_link.next);
-		nm->phys_link.prev = (queue_entry_t)
-			ptrcvt((unsigned)nm->phys_link.prev);
-	}
-	return(1);
-}
-
-/*
- * Consistency checks, make sure:
- *
- *	1. all mappings are accounted for
- *	2. no cycles
- *	3. no wild pointers
- *	4. consisent TLB state
- */
-STATIC int
-verifydata()
-{
-	register struct mapstate *ms;
-	register int i;
-	int errors = 0;
-
-	mapstate = (struct mapstate *)
-		mach_malloc("map state", mapsize * sizeof(struct mapstate));
-	for (ms = mapstate; ms < &mapstate[mapsize]; ms++) {
-		ms->flags = 0;
-		ms->hashix = ms->physix = -2;
-	}
-
-	/*
-	 * Check the free list
-	 */
-	checkhashchain(&free_mapping, M_ISFREE, -1);
-	/*
-	 * Check every hash chain
-	 */
-	for (i = 0; i < vtopsize; i++)
-		checkhashchain(&vtop_table[i], M_ISHASH, i);
-	/*
-	 * Check every phys chain
-	 */
-	for (i = 0; i < physsize; i++)
-		checkphyschain(&phys_table[i].phys_link, M_ISPHYS, i);
-	/*
-	 * Cycle through mapstate looking for anomolies
-	 */
-	ms = mapstate;
-	for (i = 0; i < mapsize; i++) {
-		switch (ms->flags) {
-		case M_ISFREE:
-		case M_ISHASH|M_ISPHYS:
-			break;
-		case 0:
-			merror(ms, "not found");
-			errors++;
-			break;
-		case M_ISHASH:
-			merror(ms, "in vtop but not phys");
-			errors++;
-			break;
-		case M_ISPHYS:
-			merror(ms, "in phys but not vtop");
-			errors++;
-			break;
-		default:
-			merror(ms, "totally bogus");
-			errors++;
-			break;
-		}
-		ms++;
-	}
-	return(errors ? 0 : 1);
-}
-
-STATIC void
-checkhashchain(qhp, flag, ix)
-	queue_entry_t qhp;
-{
-	register queue_entry_t qp, pqp;
-	register struct mapping *mp;
-	struct mapstate *ms;
-
-	qp = qhp->next;
-	/*
-	 * First element is not a mapping structure,
-	 * chain must be empty.
-	 */
-	if (!IS_MAPPTR(qp)) {
-		if (qp != qhp || qp != qhp->prev)
-			fatal("bad vtop_table header pointer");
-	} else {
-		pqp = qhp;
-		do {
-			mp = (struct mapping *) qp;
-			qp = &mp->hash_link;
-			if (qp->prev != pqp)
-				fatal("bad hash_link prev pointer");
-			ms = &mapstate[mp-map_table];
-			ms->flags |= flag;
-			ms->hashix = ix;
-			pqp = (queue_entry_t) mp;
-			qp = qp->next;
-		} while (IS_MAPPTR(qp));
-		if (qp != qhp)
-			fatal("bad hash_link next pointer");
-	}
-}
-
-STATIC void
-checkphyschain(qhp, flag, ix)
-	queue_entry_t qhp;
-{
-	register queue_entry_t qp, pqp;
-	register struct mapping *mp;
-	struct mapstate *ms;
-
-	qp = qhp->next;
-	/*
-	 * First element is not a mapping structure,
-	 * chain must be empty.
-	 */
-	if (!IS_MAPPTR(qp)) {
-		if (qp != qhp || qp != qhp->prev)
-			fatal("bad phys_table header pointer");
-	} else {
-		pqp = qhp;
-		do {
-			mp = (struct mapping *) qp;
-			qp = &mp->phys_link;
-			if (qp->prev != pqp)
-				fatal("bad phys_link prev pointer");
-			ms = &mapstate[mp-map_table];
-			ms->flags |= flag;
-			ms->physix = ix;
-			pqp = (queue_entry_t) mp;
-			qp = qp->next;
-		} while (IS_MAPPTR(qp));
-		if (qp != qhp)
-			fatal("bad phys_link next pointer");
-	}
-}
-
-STATIC void
-merror(ms, str)
-	struct mapstate *ms;
-	char *str;
-{
-	terminal_ours();
-	fflush(stdout);
-	fprintf(stderr,
-		"vtophys: %s: %c%c%c, hashix %d, physix %d, mapping %x\n",
-		str,
-		(ms->flags & M_ISFREE) ? 'F' : '-',
-		(ms->flags & M_ISHASH) ? 'H' : '-',
-		(ms->flags & M_ISPHYS) ? 'P' : '-',
-		ms->hashix, ms->physix, &map_table[ms-mapstate]);
-	return_to_top_level();
-}
-
-STATIC int
-mach_read(str, from, top, size)
-	char *str;
-	CORE_ADDR from;
-	char *top;
-	int size;
-{
-	CORE_ADDR paddr;
-
-	if (from == ~0)
-		from = ksym_lookup(str);
-	paddr = vtophys(0, from);
-	if (paddr == ~0 || physrd(paddr, top, size) != 0)
-		fatal("cannot read %s", str);
-}
-
-STATIC char *
-mach_malloc(str, size)
-	char *str;
-	int size;
-{
-	char *ptr = (char *) malloc(size);
-
-	if (ptr == 0)
-		fatal("no memory for %s", str);
-	return(ptr);
-}
-#endif
-
-#ifdef KERNELDEBUG
-void
-_initialize_hp9k8_dep()
-{
-	add_com ("process-address", class_obscure, set_paddr_command,
-"The process identified by (ps-style) ADDR becomes the\n\
-\"current\" process context for kernel debugging.");
-	add_com_alias ("paddr", "process-address", class_obscure, 0);
-	add_com ("virtual-to-physical", class_obscure, vtop_command,
-"Translates the kernel virtual address ADDR into a physical address.");
-	add_com_alias ("vtop", "virtual-to-physical", class_obscure, 0);
-}
-#endif