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[/] [or1k/] [trunk/] [gdb-5.3/] [gdb/] [builtin-regs.c] - Rev 1773
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/* Builtin registers, for GDB, the GNU debugger. Copyright 2002 Free Software Foundation, Inc. Contributed by Red Hat. 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 "builtin-regs.h" #include "gdbtypes.h" #include "gdb_string.h" #include "gdb_assert.h" /* Implement builtin register types. Builtin registers have regnum's that live above of the range [0 .. NUM_REGS + NUM_PSEUDO_REGS) (which is controlled by the target). The target should never see a builtin register's regnum value. */ /* An array of builtin registers. Always append, never delete. By doing this, the relative regnum (offset from NUM_REGS + NUM_PSEUDO_REGS) assigned to each builtin register never changes. */ struct builtin_reg { const char *name; struct value *(*value) (struct frame_info * frame); }; static struct builtin_reg *builtin_regs; int nr_builtin_regs; void add_builtin_reg (const char *name, struct value *(*value) (struct frame_info * frame)) { nr_builtin_regs++; builtin_regs = xrealloc (builtin_regs, nr_builtin_regs * sizeof (builtin_regs[0])); builtin_regs[nr_builtin_regs - 1].name = name; builtin_regs[nr_builtin_regs - 1].value = value; } int builtin_reg_map_name_to_regnum (const char *name, int len) { int reg; for (reg = 0; reg < nr_builtin_regs; reg++) { if (len == strlen (builtin_regs[reg].name) && strncmp (builtin_regs[reg].name, name, len) == 0) return NUM_REGS + NUM_PSEUDO_REGS + reg; } return -1; } const char * builtin_reg_map_regnum_to_name (int regnum) { int reg = regnum - (NUM_REGS + NUM_PSEUDO_REGS); if (reg < 0 || reg >= nr_builtin_regs) return NULL; return builtin_regs[reg].name; } struct value * value_of_builtin_reg (int regnum, struct frame_info *frame) { int reg = regnum - (NUM_REGS + NUM_PSEUDO_REGS); gdb_assert (reg >= 0 && reg < nr_builtin_regs); return builtin_regs[reg].value (frame); }
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