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[/] [or1k/] [trunk/] [gdb-5.3/] [gdb/] [gdbserver/] [linux-arm-low.c] - Rev 1765
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/* GNU/Linux/ARM specific low level interface, for the remote server for GDB. Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002 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 "server.h" #include "linux-low.h" #ifdef HAVE_SYS_REG_H #include <sys/reg.h> #endif #define arm_num_regs 26 static int arm_regmap[] = { 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, -1, -1, -1, -1, -1, -1, -1, -1, -1, 64 }; static int arm_cannot_store_register (int regno) { return (regno >= arm_num_regs); } static int arm_cannot_fetch_register (int regno) { return (regno >= arm_num_regs); } static CORE_ADDR arm_get_pc () { unsigned long pc; collect_register_by_name ("pc", &pc); return pc; } static void arm_set_pc (CORE_ADDR pc) { unsigned long newpc = pc; supply_register_by_name ("pc", &newpc); } /* Correct in either endianness. We do not support Thumb yet. */ static const unsigned long arm_breakpoint = 0xef9f0001; #define arm_breakpoint_len 4 static int arm_breakpoint_at (CORE_ADDR where) { unsigned long insn; (*the_target->read_memory) (where, (char *) &insn, 4); if (insn == arm_breakpoint) return 1; /* If necessary, recognize more trap instructions here. GDB only uses the one. */ return 0; } struct linux_target_ops the_low_target = { arm_num_regs, arm_regmap, arm_cannot_fetch_register, arm_cannot_store_register, arm_get_pc, arm_set_pc, (const char *) &arm_breakpoint, arm_breakpoint_len, NULL, 0, arm_breakpoint_at, };