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Intel 386 Mach host port.
This commit is contained in:
@ -78,6 +78,7 @@ i386)
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case "${host_os}" in
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case "${host_os}" in
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sysv) gdb_host=i386v ;;
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sysv) gdb_host=i386v ;;
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sysv32) gdb_host=i386v32 ;;
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sysv32) gdb_host=i386v32 ;;
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mach) gdb_host=i386mach ;;
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esac
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esac
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;;
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;;
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esac
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esac
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@ -208,6 +209,7 @@ i386)
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case "${target_os}" in
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case "${target_os}" in
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sysv) gdb_target=i386v ;;
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sysv) gdb_target=i386v ;;
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sysv32) gdb_target=i386v32 ;;
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sysv32) gdb_target=i386v32 ;;
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mach) gdb_target=i386mach ;;
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esac
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esac
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esac
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esac
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;;
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;;
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162
gdb/mach386-xdep.c
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162
gdb/mach386-xdep.c
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@ -0,0 +1,162 @@
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/* Machine-dependent code for host Mach 386's for GDB, the GNU debugger.
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Copyright (C) 1986, 1987, 1989, 1991 Free Software Foundation, Inc.
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This file is part of GDB.
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GDB is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 1, or (at your option)
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any later version.
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GDB is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GDB; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#if defined (GDB_TARGET_IS_MACH386)
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#include <stdio.h>
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#include "defs.h"
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#include "param.h"
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#include "frame.h"
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#include "inferior.h"
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#include "signame.h"
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#include "gdbcore.h"
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#include <sys/param.h>
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#include <sys/dir.h>
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#include <sys/user.h>
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#include <signal.h>
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#include <sys/ioctl.h>
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#include <fcntl.h>
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#include <sys/ptrace.h>
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#include <machine/reg.h>
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#include <sys/file.h>
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#include <sys/stat.h>
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#include <sys/core.h>
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void
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fetch_inferior_registers ()
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{
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struct regs inferior_registers;
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struct fp_state inferior_fp_registers;
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extern char registers[];
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registers_fetched ();
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ptrace (PTRACE_GETREGS, inferior_pid, &inferior_registers);
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ptrace (PTRACE_GETFPREGS, inferior_pid, &inferior_fp_registers);
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bcopy (&inferior_registers, registers, sizeof inferior_registers);
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bcopy (inferior_fp_registers.f_st,®isters[REGISTER_BYTE (FP0_REGNUM)],
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sizeof inferior_fp_registers.f_st);
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bcopy (&inferior_fp_registers.f_ctrl,
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®isters[REGISTER_BYTE (FPC_REGNUM)],
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sizeof inferior_fp_registers - sizeof inferior_fp_registers.f_st);
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}
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/* Store our register values back into the inferior.
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If REGNO is -1, do this for all registers.
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Otherwise, REGNO specifies which register (so we can save time). */
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store_inferior_registers (regno)
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int regno;
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{
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struct regs inferior_registers;
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struct fp_state inferior_fp_registers;
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extern char registers[];
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bcopy (registers, &inferior_registers, 20 * 4);
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bcopy (®isters[REGISTER_BYTE (FP0_REGNUM)],inferior_fp_registers.f_st,
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sizeof inferior_fp_registers.f_st);
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bcopy (®isters[REGISTER_BYTE (FPC_REGNUM)],
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&inferior_fp_registers.f_ctrl,
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sizeof inferior_fp_registers - sizeof inferior_fp_registers.f_st);
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#ifdef PTRACE_FP_BUG
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if (regno == FP_REGNUM || regno == -1)
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/* Storing the frame pointer requires a gross hack, in which an
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instruction that moves eax into ebp gets single-stepped. */
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{
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int stack = inferior_registers.r_reg[SP_REGNUM];
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int stuff = ptrace (PTRACE_PEEKDATA, inferior_pid, stack);
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int reg = inferior_registers.r_reg[EAX];
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inferior_registers.r_reg[EAX] =
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inferior_registers.r_reg[FP_REGNUM];
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ptrace (PTRACE_SETREGS, inferior_pid, &inferior_registers);
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ptrace (PTRACE_POKEDATA, inferior_pid, stack, 0xc589);
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ptrace (PTRACE_SINGLESTEP, inferior_pid, stack, 0);
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wait (0);
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ptrace (PTRACE_POKEDATA, inferior_pid, stack, stuff);
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inferior_registers.r_reg[EAX] = reg;
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}
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#endif
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ptrace (PTRACE_SETREGS, inferior_pid, &inferior_registers);
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ptrace (PTRACE_SETFPREGS, inferior_pid, &inferior_fp_registers);
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}
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/* Machine-dependent code which would otherwise be in core.c */
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/* Work with core files, for GDB. */
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void
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fetch_core_registers (core_reg_sect, core_reg_size, which)
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char *core_reg_sect;
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unsigned core_reg_size;
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int which;
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{
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int val;
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extern char registers[];
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switch (which) {
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case 0:
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case 1:
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bcopy (core_reg_sect, registers, core_reg_size);
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break;
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case 2:
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bcopy (core_reg_sect,
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®isters[REGISTER_BYTE (FP0_REGNUM)],
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core_reg_size); /* FIXME, probably bogus */
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#if 0
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bcopy (&corestr.c_fpu.f_fpstatus.f_ctrl,
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®isters[REGISTER_BYTE (FPC_REGNUM)],
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sizeof corestr.c_fpu.f_fpstatus -
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sizeof corestr.c_fpu.f_fpstatus.f_st);
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#endif
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break;
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}
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}
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#else /* Not mach386 target. */
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/* These functions shouldn't be called when we're cross-debugging. */
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void
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fetch_inferior_registers ()
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{
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}
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/* ARGSUSED */
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store_inferior_registers (regno)
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int regno;
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{
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}
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/* ARGSUSED */
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void
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fetch_core_registers (core_reg_sect, core_reg_size, which)
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char *core_reg_sect;
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unsigned core_reg_size;
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int which;
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{
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}
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#endif /* Not mach386 target. */
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@ -139,9 +139,6 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#define PC_REGNUM 8
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#define PC_REGNUM 8
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#define PS_REGNUM 9
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#define PS_REGNUM 9
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#define REGISTER_U_ADDR(addr, blockend, regno) \
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(addr) = i386_register_u_addr ((blockend),(regno));
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/* Total amount of space needed to store our copies of the machine's
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/* Total amount of space needed to store our copies of the machine's
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register state, the array `registers'. */
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register state, the array `registers'. */
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#define REGISTER_BYTES (NUM_REGS * 4)
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#define REGISTER_BYTES (NUM_REGS * 4)
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44
gdb/xm-i386mach.h
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44
gdb/xm-i386mach.h
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@ -0,0 +1,44 @@
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/* Definitions to make GDB run on Mach on an Intel 386
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Copyright (C) 1986, 1987, 1989, 1991 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#define HOST_BYTE_ORDER LITTLE_ENDIAN
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/* Avoid "INT_MIN redefined" warnings -- by defining it here, exactly
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the same as in the system <machine/machtypes.h> file. */
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#undef INT_MIN
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#define INT_MIN 0x80000000
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/* Get rid of any system-imposed stack limit if possible. */
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#define SET_STACK_LIMIT_HUGE
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/* This is the amount to subtract from u.u_ar0
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to get the offset in the core file of the register values. */
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#define KERNEL_U_ADDR (0x80000000 - (UPAGES * NBPG))
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#define BROKEN_LARGE_ALLOCA
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/* Do implement the attach and detach commands. */
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/* #define ATTACH_DETACH 1 */
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/* Override copies of {fetch,store}_inferior_registers in infptrace.c. */
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#define FETCH_INFERIOR_REGISTERS
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#define PREPARE_TO_STORE() read_register_bytes (0, NULL, REGISTER_BYTES)
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@ -55,6 +55,8 @@ on those where it does, it occurs quite reliably. */
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#define KERNEL_U_ADDR 0xe0000000
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#define KERNEL_U_ADDR 0xe0000000
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#define REGISTER_U_ADDR(addr, blockend, regno) \
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(addr) = i386_register_u_addr ((blockend),(regno));
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#if 0
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#if 0
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/* Interface definitions for kernel debugger KDB. */
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/* Interface definitions for kernel debugger KDB. */
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