/* Low level Alpha GNU/Linux interface, for GDB when running native. Copyright (C) 2005-2015 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 3 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, see <http://www.gnu.org/licenses/>. */ #include "defs.h" #include "target.h" #include "regcache.h" #include "linux-nat.h" #include "alpha-tdep.h" #include "nat/gdb_ptrace.h" #include <alpha/ptrace.h> #include <sys/procfs.h> #include "gregset.h" /* The address of UNIQUE for ptrace. */ #define ALPHA_UNIQUE_PTRACE_ADDR 65 /* See the comment in m68k-tdep.c regarding the utility of these functions. */ void supply_gregset (struct regcache *regcache, const gdb_gregset_t *gregsetp) { const long *regp = (const long *)gregsetp; /* PC is in slot 32, UNIQUE is in slot 33. */ alpha_supply_int_regs (regcache, -1, regp, regp + 31, regp + 32); } void fill_gregset (const struct regcache *regcache, gdb_gregset_t *gregsetp, int regno) { long *regp = (long *)gregsetp; /* PC is in slot 32, UNIQUE is in slot 33. */ alpha_fill_int_regs (regcache, regno, regp, regp + 31, regp + 32); } /* Now we do the same thing for floating-point registers. Again, see the comments in m68k-tdep.c. */ void supply_fpregset (struct regcache *regcache, const gdb_fpregset_t *fpregsetp) { const long *regp = (const long *)fpregsetp; /* FPCR is in slot 32. */ alpha_supply_fp_regs (regcache, -1, regp, regp + 31); } void fill_fpregset (const struct regcache *regcache, gdb_fpregset_t *fpregsetp, int regno) { long *regp = (long *)fpregsetp; /* FPCR is in slot 32. */ alpha_fill_fp_regs (regcache, regno, regp, regp + 31); } static CORE_ADDR alpha_linux_register_u_offset (struct gdbarch *gdbarch, int regno, int store_p) { if (regno == gdbarch_pc_regnum (gdbarch)) return PC; if (regno == ALPHA_UNIQUE_REGNUM) return ALPHA_UNIQUE_PTRACE_ADDR; if (regno < gdbarch_fp0_regnum (gdbarch)) return GPR_BASE + regno; else return FPR_BASE + regno - gdbarch_fp0_regnum (gdbarch); } void _initialize_alpha_linux_nat (void); void _initialize_alpha_linux_nat (void) { linux_nat_add_target (linux_trad_target (alpha_linux_register_u_offset)); }