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[/] [or1k/] [trunk/] [gdb-5.0/] [gdb/] [ns32km3-nat.c] - Rev 104
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/* Low level interface to ns532 running mach 3.0. Copyright (C) 1992 Free Software Foundation, Inc. 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "defs.h" #include "inferior.h" #include <stdio.h> #include <mach.h> #include <mach/message.h> #include <mach/exception.h> #include <mach_error.h> #define private static /* Find offsets to thread states at compile time. * If your compiler does not grok this, calculate offsets * offsets yourself and use them (or get a compatible compiler :-) */ #define REG_N_OFFSET(reg) (int)(&((struct ns532_combined_state *)0)->ts.reg) #define REG_F_OFFSET(reg) (int)(&((struct ns532_combined_state *)0)->fs.reg) /* at reg_offset[i] is the offset to the ns532_combined_state * location where the gdb registers[i] is stored. */ static int reg_offset[] = { REG_N_OFFSET (r0), REG_N_OFFSET (r1), REG_N_OFFSET (r2), REG_N_OFFSET (r3), REG_N_OFFSET (r4), REG_N_OFFSET (r5), REG_N_OFFSET (r6), REG_N_OFFSET (r7), REG_F_OFFSET (l0a), REG_F_OFFSET (l0b), REG_F_OFFSET (l2a), REG_F_OFFSET (l2b), REG_F_OFFSET (l4a), REG_F_OFFSET (l4b), REG_F_OFFSET (l6a), REG_F_OFFSET (l6b), REG_N_OFFSET (sp), REG_N_OFFSET (fp), REG_N_OFFSET (pc), REG_N_OFFSET (psr), REG_F_OFFSET (fsr), REG_F_OFFSET (l0a), REG_F_OFFSET (l1a), REG_F_OFFSET (l2a), REG_F_OFFSET (l3a), REG_F_OFFSET (l4a), REG_F_OFFSET (l5a), REG_F_OFFSET (l6a), REG_F_OFFSET (l7a), }; #define REG_ADDRESS(state,regnum) ((char *)(state)+reg_offset[regnum]) /* Fetch COUNT contiguous registers from thread STATE starting from REGNUM * Caller knows that the regs handled in one transaction are of same size. */ #define FETCH_REGS(state, regnum, count) \ memcpy (®isters[REGISTER_BYTE (regnum)], \ (char *)state+reg_offset[ regnum ], \ count*REGISTER_SIZE) /* Store COUNT contiguous registers to thread STATE starting from REGNUM */ #define STORE_REGS(state, regnum, count) \ memcpy ((char *)state+reg_offset[ regnum ], \ ®isters[REGISTER_BYTE (regnum)], \ count*REGISTER_SIZE) /* * Fetch inferiors registers for gdb. * REGNO specifies which (as gdb views it) register, -1 for all. */ void fetch_inferior_registers (regno) int regno; { kern_return_t ret; thread_state_data_t state; unsigned int stateCnt = NS532_COMBINED_STATE_COUNT; int index; if (!MACH_PORT_VALID (current_thread)) error ("fetch inferior registers: Invalid thread"); if (must_suspend_thread) setup_thread (current_thread, 1); ret = thread_get_state (current_thread, NS532_COMBINED_STATE, state, &stateCnt); if (ret != KERN_SUCCESS) warning ("fetch_inferior_registers: %s ", mach_error_string (ret)); #if 0 /* It may be more effective to store validate all of them, * since we fetched them all anyway */ else if (regno != -1) supply_register (regno, (char *) state + reg_offset[regno]); #endif else { for (index = 0; index < NUM_REGS; index++) supply_register (index, (char *) state + reg_offset[index]); } if (must_suspend_thread) setup_thread (current_thread, 0); } /* Store our register values back into the inferior. * If REGNO is -1, do this for all registers. * Otherwise, REGNO specifies which register * * On mach3 all registers are always saved in one call. */ void store_inferior_registers (regno) int regno; { kern_return_t ret; thread_state_data_t state; unsigned int stateCnt = NS532_COMBINED_STATE_COUNT; register int index; if (!MACH_PORT_VALID (current_thread)) error ("store inferior registers: Invalid thread"); if (must_suspend_thread) setup_thread (current_thread, 1); /* Fetch the state of the current thread */ ret = thread_get_state (current_thread, NS532_COMBINED_STATE, state, &stateCnt); if (ret != KERN_SUCCESS) { warning ("store_inferior_registers (get): %s", mach_error_string (ret)); if (must_suspend_thread) setup_thread (current_thread, 0); return; } /* move gdb's registers to thread's state * Since we save all registers anyway, save the ones * that gdb thinks are valid (e.g. ignore the regno * parameter) */ #if 0 if (regno != -1) STORE_REGS (state, regno, 1); else #endif { for (index = 0; index < NUM_REGS; index++) STORE_REGS (state, index, 1); } /* Write gdb's current view of register to the thread */ ret = thread_set_state (current_thread, NS532_COMBINED_STATE, state, NS532_COMBINED_STATE_COUNT); if (ret != KERN_SUCCESS) warning ("store_inferior_registers (set): %s", mach_error_string (ret)); if (must_suspend_thread) setup_thread (current_thread, 0); }
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