d8ee244c99
i[3456]-*-osf1mk* configurations have been made obsolete. * configure.host: Make i[3456]86-*-mach3*, i[3456]86-*mach* and i[3456]86-*-osf1mk* hosts obsolete. * confighure.tgt: Make i[3456]86-*-mach3*, i[3456]86-*-osf1mk* targets obsolete. * config/i386/i386mach.mh, config/i386/nm-i386mach.h, config/i386/xm-i386mach.h, config/i386/i386m3.mh, config/i386/i386m3.mt, config/i386/nm-m3.h, config/i386/tm-i386m3.h, config/i386/xm-i386m3.h, config/i386/i386mk.mh, config/i386/i386mk.mt, config/i386/tm-i386mk.h, config/i386/xm-i386mk.h: Make files obsolete. * i386mach-nat.c, i386m3-nat.c: Make files obsolete. * Makefile.in (ALLDEPFILES): Remove i386mach.c i386m3-nat.c (i386mach-nat.o, i386m3-nat.o):Make targets obsolete.
426 lines
16 KiB
C
426 lines
16 KiB
C
// OBSOLETE /* Low level interface to I386 running mach 3.0.
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// OBSOLETE Copyright 1992, 1993, 1994, 1996, 2000, 2001
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// OBSOLETE 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. */
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// OBSOLETE
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// OBSOLETE #include "defs.h"
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// OBSOLETE #include "inferior.h"
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// OBSOLETE #include "floatformat.h"
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// OBSOLETE #include "regcache.h"
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// OBSOLETE
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// OBSOLETE #include <stdio.h>
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// OBSOLETE
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// OBSOLETE #include <mach.h>
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// OBSOLETE #include <mach/message.h>
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// OBSOLETE #include <mach/exception.h>
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// OBSOLETE #include <mach_error.h>
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// OBSOLETE
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// OBSOLETE /* Hmmm... Should this not be here?
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// OBSOLETE * Now for i386_float_info() target_has_execution
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// OBSOLETE */
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// OBSOLETE #include <target.h>
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// OBSOLETE
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// OBSOLETE /* This mess is duplicated in bfd/i386mach3.h
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// OBSOLETE
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// OBSOLETE * This is an ugly way to hack around the incorrect
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// OBSOLETE * definition of UPAGES in i386/machparam.h.
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// OBSOLETE *
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// OBSOLETE * The definition should specify the size reserved
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// OBSOLETE * for "struct user" in core files in PAGES,
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// OBSOLETE * but instead it gives it in 512-byte core-clicks
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// OBSOLETE * for i386 and i860.
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// OBSOLETE */
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// OBSOLETE #include <sys/param.h>
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// OBSOLETE #if UPAGES == 16
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// OBSOLETE #define UAREA_SIZE ctob(UPAGES)
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// OBSOLETE #elif UPAGES == 2
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// OBSOLETE #define UAREA_SIZE (NBPG*UPAGES)
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// OBSOLETE #else
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// OBSOLETE FIXME ! !UPAGES is neither 2 nor 16
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// OBSOLETE #endif
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// OBSOLETE
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// OBSOLETE /* @@@ Should move print_387_status() to i387-tdep.c */
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// OBSOLETE extern void print_387_control_word (); /* i387-tdep.h */
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// OBSOLETE extern void print_387_status_word ();
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// OBSOLETE
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// OBSOLETE #define private static
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// OBSOLETE
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// OBSOLETE
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// OBSOLETE /* Find offsets to thread states at compile time.
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// OBSOLETE * If your compiler does not grok this, calculate offsets
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// OBSOLETE * offsets yourself and use them (or get a compatible compiler :-)
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// OBSOLETE */
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// OBSOLETE
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// OBSOLETE #define REG_OFFSET(reg) (int)(&((struct i386_thread_state *)0)->reg)
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// OBSOLETE
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// OBSOLETE /* at reg_offset[i] is the offset to the i386_thread_state
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// OBSOLETE * location where the gdb registers[i] is stored.
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// OBSOLETE */
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// OBSOLETE
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// OBSOLETE static int reg_offset[] =
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// OBSOLETE {
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// OBSOLETE REG_OFFSET (eax), REG_OFFSET (ecx), REG_OFFSET (edx), REG_OFFSET (ebx),
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// OBSOLETE REG_OFFSET (uesp), REG_OFFSET (ebp), REG_OFFSET (esi), REG_OFFSET (edi),
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// OBSOLETE REG_OFFSET (eip), REG_OFFSET (efl), REG_OFFSET (cs), REG_OFFSET (ss),
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// OBSOLETE REG_OFFSET (ds), REG_OFFSET (es), REG_OFFSET (fs), REG_OFFSET (gs)
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// OBSOLETE };
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// OBSOLETE
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// OBSOLETE #define REG_ADDRESS(state,regnum) ((char *)(state)+reg_offset[regnum])
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// OBSOLETE
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// OBSOLETE /* Fetch COUNT contiguous registers from thread STATE starting from REGNUM
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// OBSOLETE * Caller knows that the regs handled in one transaction are of same size.
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// OBSOLETE */
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// OBSOLETE #define FETCH_REGS(state, regnum, count) \
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// OBSOLETE memcpy (®isters[REGISTER_BYTE (regnum)], \
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// OBSOLETE REG_ADDRESS (state, regnum), \
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// OBSOLETE count*REGISTER_SIZE)
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// OBSOLETE
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// OBSOLETE /* Store COUNT contiguous registers to thread STATE starting from REGNUM */
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// OBSOLETE #define STORE_REGS(state, regnum, count) \
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// OBSOLETE memcpy (REG_ADDRESS (state, regnum), \
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// OBSOLETE ®isters[REGISTER_BYTE (regnum)], \
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// OBSOLETE count*REGISTER_SIZE)
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// OBSOLETE
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// OBSOLETE /*
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// OBSOLETE * Fetch inferiors registers for gdb.
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// OBSOLETE * REGNO specifies which (as gdb views it) register, -1 for all.
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// OBSOLETE */
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// OBSOLETE
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// OBSOLETE void
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// OBSOLETE fetch_inferior_registers (int regno)
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// OBSOLETE {
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// OBSOLETE kern_return_t ret;
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// OBSOLETE thread_state_data_t state;
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// OBSOLETE unsigned int stateCnt = i386_THREAD_STATE_COUNT;
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// OBSOLETE int index;
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// OBSOLETE
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// OBSOLETE if (!MACH_PORT_VALID (current_thread))
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// OBSOLETE error ("fetch inferior registers: Invalid thread");
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// OBSOLETE
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// OBSOLETE if (must_suspend_thread)
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// OBSOLETE setup_thread (current_thread, 1);
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// OBSOLETE
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// OBSOLETE ret = thread_get_state (current_thread,
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// OBSOLETE i386_THREAD_STATE,
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// OBSOLETE state,
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// OBSOLETE &stateCnt);
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// OBSOLETE
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// OBSOLETE if (ret != KERN_SUCCESS)
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// OBSOLETE warning ("fetch_inferior_registers: %s ",
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// OBSOLETE mach_error_string (ret));
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// OBSOLETE #if 0
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// OBSOLETE /* It may be more effective to store validate all of them,
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// OBSOLETE * since we fetched them all anyway
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// OBSOLETE */
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// OBSOLETE else if (regno != -1)
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// OBSOLETE supply_register (regno, (char *) state + reg_offset[regno]);
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// OBSOLETE #endif
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// OBSOLETE else
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// OBSOLETE {
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// OBSOLETE for (index = 0; index < NUM_REGS; index++)
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// OBSOLETE supply_register (index, (char *) state + reg_offset[index]);
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// OBSOLETE }
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// OBSOLETE
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// OBSOLETE if (must_suspend_thread)
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// OBSOLETE setup_thread (current_thread, 0);
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// OBSOLETE }
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// OBSOLETE
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// OBSOLETE /* Store our register values back into the inferior.
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// OBSOLETE * If REGNO is -1, do this for all registers.
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// OBSOLETE * Otherwise, REGNO specifies which register
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// OBSOLETE *
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// OBSOLETE * On mach3 all registers are always saved in one call.
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// OBSOLETE */
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// OBSOLETE void
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// OBSOLETE store_inferior_registers (int regno)
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// OBSOLETE {
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// OBSOLETE kern_return_t ret;
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// OBSOLETE thread_state_data_t state;
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// OBSOLETE unsigned int stateCnt = i386_THREAD_STATE_COUNT;
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// OBSOLETE register int index;
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// OBSOLETE
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// OBSOLETE if (!MACH_PORT_VALID (current_thread))
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// OBSOLETE error ("store inferior registers: Invalid thread");
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// OBSOLETE
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// OBSOLETE if (must_suspend_thread)
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// OBSOLETE setup_thread (current_thread, 1);
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// OBSOLETE
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// OBSOLETE /* Fetch the state of the current thread */
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// OBSOLETE ret = thread_get_state (current_thread,
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// OBSOLETE i386_THREAD_STATE,
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// OBSOLETE state,
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// OBSOLETE &stateCnt);
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// OBSOLETE
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// OBSOLETE if (ret != KERN_SUCCESS)
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// OBSOLETE {
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// OBSOLETE warning ("store_inferior_registers (get): %s",
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// OBSOLETE mach_error_string (ret));
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// OBSOLETE if (must_suspend_thread)
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// OBSOLETE setup_thread (current_thread, 0);
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// OBSOLETE return;
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// OBSOLETE }
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// OBSOLETE
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// OBSOLETE /* move gdb's registers to thread's state
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// OBSOLETE
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// OBSOLETE * Since we save all registers anyway, save the ones
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// OBSOLETE * that gdb thinks are valid (e.g. ignore the regno
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// OBSOLETE * parameter)
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// OBSOLETE */
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// OBSOLETE #if 0
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// OBSOLETE if (regno != -1)
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// OBSOLETE STORE_REGS (state, regno, 1);
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// OBSOLETE else
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// OBSOLETE #endif
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// OBSOLETE {
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// OBSOLETE for (index = 0; index < NUM_REGS; index++)
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// OBSOLETE STORE_REGS (state, index, 1);
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// OBSOLETE }
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// OBSOLETE
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// OBSOLETE /* Write gdb's current view of register to the thread
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// OBSOLETE */
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// OBSOLETE ret = thread_set_state (current_thread,
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// OBSOLETE i386_THREAD_STATE,
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// OBSOLETE state,
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// OBSOLETE i386_THREAD_STATE_COUNT);
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// OBSOLETE
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// OBSOLETE if (ret != KERN_SUCCESS)
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// OBSOLETE warning ("store_inferior_registers (set): %s",
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// OBSOLETE mach_error_string (ret));
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// OBSOLETE
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// OBSOLETE if (must_suspend_thread)
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// OBSOLETE setup_thread (current_thread, 0);
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// OBSOLETE }
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// OBSOLETE
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// OBSOLETE
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// OBSOLETE
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// OBSOLETE /* Return the address in the core dump or inferior of register REGNO.
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// OBSOLETE * BLOCKEND should be the address of the end of the UPAGES area read
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// OBSOLETE * in memory, but it's not?
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// OBSOLETE *
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// OBSOLETE * Currently our UX server dumps the whole thread state to the
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// OBSOLETE * core file. If your UX does something else, adapt the routine
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// OBSOLETE * below to return the offset to the given register.
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// OBSOLETE *
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// OBSOLETE * Called by core-aout.c(fetch_core_registers)
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// OBSOLETE */
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// OBSOLETE
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// OBSOLETE CORE_ADDR
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// OBSOLETE register_addr (int regno, CORE_ADDR blockend)
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// OBSOLETE {
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// OBSOLETE CORE_ADDR addr;
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// OBSOLETE
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// OBSOLETE if (regno < 0 || regno >= NUM_REGS)
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// OBSOLETE error ("Invalid register number %d.", regno);
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// OBSOLETE
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// OBSOLETE /* UAREA_SIZE == 8 kB in i386 */
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// OBSOLETE addr = (unsigned int) REG_ADDRESS (UAREA_SIZE - sizeof (struct i386_thread_state), regno);
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// OBSOLETE
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// OBSOLETE return addr;
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// OBSOLETE }
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// OBSOLETE
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// OBSOLETE /* jtv@hut.fi: I copied and modified this 387 code from
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// OBSOLETE * gdb/i386-xdep.c. Modifications for Mach 3.0.
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// OBSOLETE *
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// OBSOLETE * i387 status dumper. See also i387-tdep.c
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// OBSOLETE */
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// OBSOLETE struct env387
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// OBSOLETE {
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// OBSOLETE unsigned short control;
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// OBSOLETE unsigned short r0;
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// OBSOLETE unsigned short status;
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// OBSOLETE unsigned short r1;
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// OBSOLETE unsigned short tag;
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// OBSOLETE unsigned short r2;
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// OBSOLETE unsigned long eip;
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// OBSOLETE unsigned short code_seg;
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// OBSOLETE unsigned short opcode;
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// OBSOLETE unsigned long operand;
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// OBSOLETE unsigned short operand_seg;
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// OBSOLETE unsigned short r3;
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// OBSOLETE unsigned char regs[8][10];
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// OBSOLETE };
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// OBSOLETE /* This routine is machine independent?
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// OBSOLETE * Should move it to i387-tdep.c but you need to export struct env387
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// OBSOLETE */
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// OBSOLETE private
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// OBSOLETE print_387_status (unsigned short status, struct env387 *ep)
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// OBSOLETE {
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// OBSOLETE int i;
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// OBSOLETE int bothstatus;
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// OBSOLETE int top;
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// OBSOLETE int fpreg;
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// OBSOLETE unsigned char *p;
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// OBSOLETE
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// OBSOLETE bothstatus = ((status != 0) && (ep->status != 0));
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// OBSOLETE if (status != 0)
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// OBSOLETE {
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// OBSOLETE if (bothstatus)
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// OBSOLETE printf_unfiltered ("u: ");
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// OBSOLETE print_387_status_word (status);
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// OBSOLETE }
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// OBSOLETE
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// OBSOLETE if (ep->status != 0)
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// OBSOLETE {
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// OBSOLETE if (bothstatus)
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// OBSOLETE printf_unfiltered ("e: ");
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// OBSOLETE print_387_status_word (ep->status);
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// OBSOLETE }
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// OBSOLETE
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// OBSOLETE print_387_control_word (ep->control);
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// OBSOLETE printf_unfiltered ("last exception: ");
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// OBSOLETE printf_unfiltered ("opcode %s; ", local_hex_string (ep->opcode));
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// OBSOLETE printf_unfiltered ("pc %s:", local_hex_string (ep->code_seg));
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// OBSOLETE printf_unfiltered ("%s; ", local_hex_string (ep->eip));
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// OBSOLETE printf_unfiltered ("operand %s", local_hex_string (ep->operand_seg));
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// OBSOLETE printf_unfiltered (":%s\n", local_hex_string (ep->operand));
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// OBSOLETE
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// OBSOLETE top = (ep->status >> 11) & 7;
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// OBSOLETE
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// OBSOLETE printf_unfiltered ("regno tag msb lsb value\n");
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// OBSOLETE for (fpreg = 7; fpreg >= 0; fpreg--)
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// OBSOLETE {
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// OBSOLETE double val;
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// OBSOLETE
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// OBSOLETE printf_unfiltered ("%s %d: ", fpreg == top ? "=>" : " ", fpreg);
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// OBSOLETE
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// OBSOLETE switch ((ep->tag >> (fpreg * 2)) & 3)
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// OBSOLETE {
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// OBSOLETE case 0:
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// OBSOLETE printf_unfiltered ("valid ");
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// OBSOLETE break;
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// OBSOLETE case 1:
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// OBSOLETE printf_unfiltered ("zero ");
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// OBSOLETE break;
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// OBSOLETE case 2:
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// OBSOLETE printf_unfiltered ("trap ");
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// OBSOLETE break;
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// OBSOLETE case 3:
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// OBSOLETE printf_unfiltered ("empty ");
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// OBSOLETE break;
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// OBSOLETE }
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// OBSOLETE for (i = 9; i >= 0; i--)
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// OBSOLETE printf_unfiltered ("%02x", ep->regs[fpreg][i]);
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// OBSOLETE
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// OBSOLETE floatformat_to_double (&floatformat_i387_ext, (char *) ep->regs[fpreg],
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// OBSOLETE &val);
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// OBSOLETE printf_unfiltered (" %g\n", val);
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// OBSOLETE }
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// OBSOLETE if (ep->r0)
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// OBSOLETE printf_unfiltered ("warning: reserved0 is %s\n", local_hex_string (ep->r0));
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// OBSOLETE if (ep->r1)
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// OBSOLETE printf_unfiltered ("warning: reserved1 is %s\n", local_hex_string (ep->r1));
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// OBSOLETE if (ep->r2)
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// OBSOLETE printf_unfiltered ("warning: reserved2 is %s\n", local_hex_string (ep->r2));
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// OBSOLETE if (ep->r3)
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// OBSOLETE printf_unfiltered ("warning: reserved3 is %s\n", local_hex_string (ep->r3));
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// OBSOLETE }
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// OBSOLETE
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// OBSOLETE /*
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// OBSOLETE * values that go into fp_kind (from <i386/fpreg.h>)
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// OBSOLETE */
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// OBSOLETE #define FP_NO 0 /* no fp chip, no emulator (no fp support) */
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// OBSOLETE #define FP_SW 1 /* no fp chip, using software emulator */
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// OBSOLETE #define FP_HW 2 /* chip present bit */
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// OBSOLETE #define FP_287 2 /* 80287 chip present */
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// OBSOLETE #define FP_387 3 /* 80387 chip present */
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// OBSOLETE
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// OBSOLETE typedef struct fpstate
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// OBSOLETE {
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// OBSOLETE #if 1
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// OBSOLETE unsigned char state[FP_STATE_BYTES]; /* "hardware" state */
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// OBSOLETE #else
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// OBSOLETE struct env387 state; /* Actually this */
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// OBSOLETE #endif
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// OBSOLETE int status; /* Duplicate status */
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// OBSOLETE }
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// OBSOLETE *fpstate_t;
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// OBSOLETE
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// OBSOLETE /* Mach 3 specific routines.
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// OBSOLETE */
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// OBSOLETE private boolean_t
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// OBSOLETE get_i387_state (struct fpstate *fstate)
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// OBSOLETE {
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// OBSOLETE kern_return_t ret;
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// OBSOLETE thread_state_data_t state;
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// OBSOLETE unsigned int fsCnt = i386_FLOAT_STATE_COUNT;
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// OBSOLETE struct i386_float_state *fsp;
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// OBSOLETE
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// OBSOLETE ret = thread_get_state (current_thread,
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// OBSOLETE i386_FLOAT_STATE,
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// OBSOLETE state,
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// OBSOLETE &fsCnt);
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// OBSOLETE
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// OBSOLETE if (ret != KERN_SUCCESS)
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// OBSOLETE {
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// OBSOLETE warning ("Can not get live floating point state: %s",
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// OBSOLETE mach_error_string (ret));
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// OBSOLETE return FALSE;
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// OBSOLETE }
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// OBSOLETE
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// OBSOLETE fsp = (struct i386_float_state *) state;
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// OBSOLETE /* The 387 chip (also 486 counts) or a software emulator? */
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// OBSOLETE if (!fsp->initialized || (fsp->fpkind != FP_387 && fsp->fpkind != FP_SW))
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// OBSOLETE return FALSE;
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// OBSOLETE
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// OBSOLETE /* Clear the target then copy thread's float state there.
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// OBSOLETE Make a copy of the status word, for some reason?
|
||
// OBSOLETE */
|
||
// OBSOLETE memset (fstate, 0, sizeof (struct fpstate));
|
||
// OBSOLETE
|
||
// OBSOLETE fstate->status = fsp->exc_status;
|
||
// OBSOLETE
|
||
// OBSOLETE memcpy (fstate->state, (char *) &fsp->hw_state, FP_STATE_BYTES);
|
||
// OBSOLETE
|
||
// OBSOLETE return TRUE;
|
||
// OBSOLETE }
|
||
// OBSOLETE
|
||
// OBSOLETE private boolean_t
|
||
// OBSOLETE get_i387_core_state (struct fpstate *fstate)
|
||
// OBSOLETE {
|
||
// OBSOLETE /* Not implemented yet. Core files do not contain float state. */
|
||
// OBSOLETE return FALSE;
|
||
// OBSOLETE }
|
||
// OBSOLETE
|
||
// OBSOLETE /*
|
||
// OBSOLETE * This is called by "info float" command
|
||
// OBSOLETE */
|
||
// OBSOLETE void
|
||
// OBSOLETE i386_mach3_float_info (void)
|
||
// OBSOLETE {
|
||
// OBSOLETE char buf[sizeof (struct fpstate) + 2 * sizeof (int)];
|
||
// OBSOLETE boolean_t valid = FALSE;
|
||
// OBSOLETE fpstate_t fps;
|
||
// OBSOLETE
|
||
// OBSOLETE if (target_has_execution)
|
||
// OBSOLETE valid = get_i387_state (buf);
|
||
// OBSOLETE #if 0
|
||
// OBSOLETE else if (WE HAVE CORE FILE) /* @@@@ Core files not supported */
|
||
// OBSOLETE valid = get_i387_core_state (buf);
|
||
// OBSOLETE #endif
|
||
// OBSOLETE
|
||
// OBSOLETE if (!valid)
|
||
// OBSOLETE {
|
||
// OBSOLETE warning ("no floating point status saved");
|
||
// OBSOLETE return;
|
||
// OBSOLETE }
|
||
// OBSOLETE
|
||
// OBSOLETE fps = (fpstate_t) buf;
|
||
// OBSOLETE
|
||
// OBSOLETE print_387_status (fps->status, (struct env387 *) fps->state);
|
||
// OBSOLETE }
|