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[/] [or1k/] [trunk/] [gdb-5.3/] [gdb/] [i386mach-nat.c] - Rev 1765
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// OBSOLETE /* Native dependent code for Mach 386's for GDB, the GNU debugger. // OBSOLETE Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1995, 1996, 1999, 2000, // OBSOLETE 2001 Free Software Foundation, Inc. // OBSOLETE // OBSOLETE This file is part of GDB. // OBSOLETE // OBSOLETE This program is free software; you can redistribute it and/or modify // OBSOLETE it under the terms of the GNU General Public License as published by // OBSOLETE the Free Software Foundation; either version 2 of the License, or // OBSOLETE (at your option) any later version. // OBSOLETE // OBSOLETE This program is distributed in the hope that it will be useful, // OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of // OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // OBSOLETE GNU General Public License for more details. // OBSOLETE // OBSOLETE You should have received a copy of the GNU General Public License // OBSOLETE along with this program; if not, write to the Free Software // OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330, // OBSOLETE Boston, MA 02111-1307, USA. */ // OBSOLETE // OBSOLETE #include "defs.h" // OBSOLETE #include "frame.h" // OBSOLETE #include "inferior.h" // OBSOLETE #include "gdbcore.h" // OBSOLETE #include "regcache.h" // OBSOLETE // OBSOLETE #include <sys/param.h> // OBSOLETE #include <sys/dir.h> // OBSOLETE #include <sys/user.h> // OBSOLETE #include <signal.h> // OBSOLETE #include <sys/ioctl.h> // OBSOLETE #include <fcntl.h> // OBSOLETE // OBSOLETE #include <sys/ptrace.h> // OBSOLETE #include <machine/reg.h> // OBSOLETE // OBSOLETE #include <sys/file.h> // OBSOLETE #include "gdb_stat.h" // OBSOLETE #include <sys/core.h> // OBSOLETE // OBSOLETE static void fetch_core_registers (char *, unsigned, int, CORE_ADDR); // OBSOLETE // OBSOLETE void // OBSOLETE fetch_inferior_registers (int regno) // OBSOLETE { // OBSOLETE struct regs inferior_registers; // OBSOLETE struct fp_state inferior_fp_registers; // OBSOLETE // OBSOLETE registers_fetched (); // OBSOLETE // OBSOLETE ptrace (PTRACE_GETREGS, PIDGET (inferior_ptid), // OBSOLETE (PTRACE_ARG3_TYPE) & inferior_registers); // OBSOLETE ptrace (PTRACE_GETFPREGS, PIDGET (inferior_ptid), // OBSOLETE (PTRACE_ARG3_TYPE) & inferior_fp_registers); // OBSOLETE // OBSOLETE memcpy (registers, &inferior_registers, sizeof inferior_registers); // OBSOLETE // OBSOLETE memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], // OBSOLETE inferior_fp_registers.f_st, // OBSOLETE sizeof inferior_fp_registers.f_st); // OBSOLETE memcpy (®isters[REGISTER_BYTE (FPC_REGNUM)], // OBSOLETE &inferior_fp_registers.f_ctrl, // OBSOLETE sizeof inferior_fp_registers - sizeof inferior_fp_registers.f_st); // OBSOLETE } // OBSOLETE // OBSOLETE /* Store our register values back into the inferior. // OBSOLETE If REGNO is -1, do this for all registers. // OBSOLETE Otherwise, REGNO specifies which register (so we can save time). */ // OBSOLETE // OBSOLETE void // OBSOLETE store_inferior_registers (int regno) // OBSOLETE { // OBSOLETE struct regs inferior_registers; // OBSOLETE struct fp_state inferior_fp_registers; // OBSOLETE // OBSOLETE memcpy (&inferior_registers, registers, 20 * 4); // OBSOLETE // OBSOLETE memcpy (inferior_fp_registers.f_st, ®isters[REGISTER_BYTE (FP0_REGNUM)], // OBSOLETE sizeof inferior_fp_registers.f_st); // OBSOLETE memcpy (&inferior_fp_registers.f_ctrl, // OBSOLETE ®isters[REGISTER_BYTE (FPC_REGNUM)], // OBSOLETE sizeof inferior_fp_registers - sizeof inferior_fp_registers.f_st); // OBSOLETE // OBSOLETE #ifdef PTRACE_FP_BUG // OBSOLETE if (regno == FP_REGNUM || regno == -1) // OBSOLETE /* Storing the frame pointer requires a gross hack, in which an // OBSOLETE instruction that moves eax into ebp gets single-stepped. */ // OBSOLETE { // OBSOLETE int stack = inferior_registers.r_reg[SP_REGNUM]; // OBSOLETE int stuff = ptrace (PTRACE_PEEKDATA, PIDGET (inferior_ptid), // OBSOLETE (PTRACE_ARG3_TYPE) stack); // OBSOLETE int reg = inferior_registers.r_reg[EAX]; // OBSOLETE inferior_registers.r_reg[EAX] = // OBSOLETE inferior_registers.r_reg[FP_REGNUM]; // OBSOLETE ptrace (PTRACE_SETREGS, PIDGET (inferior_ptid), // OBSOLETE (PTRACE_ARG3_TYPE) & inferior_registers); // OBSOLETE ptrace (PTRACE_POKEDATA, PIDGET (inferior_ptid), // OBSOLETE (PTRACE_ARG3_TYPE) stack, 0xc589); // OBSOLETE ptrace (PTRACE_SINGLESTEP, PIDGET (inferior_ptid), // OBSOLETE (PTRACE_ARG3_TYPE) stack, 0); // OBSOLETE wait (0); // OBSOLETE ptrace (PTRACE_POKEDATA, PIDGET (inferior_ptid), // OBSOLETE (PTRACE_ARG3_TYPE) stack, stuff); // OBSOLETE inferior_registers.r_reg[EAX] = reg; // OBSOLETE } // OBSOLETE #endif // OBSOLETE ptrace (PTRACE_SETREGS, PIDGET (inferior_ptid), // OBSOLETE (PTRACE_ARG3_TYPE) & inferior_registers); // OBSOLETE ptrace (PTRACE_SETFPREGS, PIDGET (inferior_ptid), // OBSOLETE (PTRACE_ARG3_TYPE) & inferior_fp_registers); // OBSOLETE } // OBSOLETE // OBSOLETE // OBSOLETE // OBSOLETE /* Provide registers to GDB from a core file. // OBSOLETE // OBSOLETE CORE_REG_SECT points to an array of bytes, which were obtained from // OBSOLETE a core file which BFD thinks might contain register contents. // OBSOLETE CORE_REG_SIZE is its size. // OBSOLETE // OBSOLETE WHICH says which register set corelow suspects this is: // OBSOLETE 0 --- the general-purpose register set // OBSOLETE 2 --- the floating-point register set // OBSOLETE // OBSOLETE REG_ADDR isn't used. */ // OBSOLETE // OBSOLETE static void // OBSOLETE fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, // OBSOLETE int which, CORE_ADDR reg_addr) // OBSOLETE { // OBSOLETE int val; // OBSOLETE // OBSOLETE switch (which) // OBSOLETE { // OBSOLETE case 0: // OBSOLETE case 1: // OBSOLETE memcpy (registers, core_reg_sect, core_reg_size); // OBSOLETE break; // OBSOLETE // OBSOLETE case 2: // OBSOLETE memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], // OBSOLETE core_reg_sect, // OBSOLETE core_reg_size); /* FIXME, probably bogus */ // OBSOLETE #ifdef FPC_REGNUM // OBSOLETE memcpy (®isters[REGISTER_BYTE (FPC_REGNUM)], // OBSOLETE &corestr.c_fpu.f_fpstatus.f_ctrl, // OBSOLETE sizeof corestr.c_fpu.f_fpstatus - // OBSOLETE sizeof corestr.c_fpu.f_fpstatus.f_st); // OBSOLETE #endif // OBSOLETE break; // OBSOLETE } // OBSOLETE } // OBSOLETE // OBSOLETE // OBSOLETE /* Register that we are able to handle i386mach core file formats. // OBSOLETE FIXME: is this really bfd_target_unknown_flavour? */ // OBSOLETE // OBSOLETE static struct core_fns i386mach_core_fns = // OBSOLETE { // OBSOLETE bfd_target_unknown_flavour, /* core_flavour */ // OBSOLETE default_check_format, /* check_format */ // OBSOLETE default_core_sniffer, /* core_sniffer */ // OBSOLETE fetch_core_registers, /* core_read_registers */ // OBSOLETE NULL /* next */ // OBSOLETE }; // OBSOLETE // OBSOLETE void // OBSOLETE _initialize_core_i386mach (void) // OBSOLETE { // OBSOLETE add_core_fns (&i386mach_core_fns); // OBSOLETE }