| /* Native-dependent code for SPARC BSD's. |
| |
| Copyright 2002, 2003 Free Software Foundation, Inc. |
| Based on code contributed by Wasabi Systems, 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 "regcache.h" |
| |
| /* FIXME: Should be changed to sparc-tdep.h when the old code is gone. */ |
| #include "sparc64-tdep.h" |
| #include "sparcbsd-nat.h" |
| |
| #include <sys/types.h> |
| #include <sys/ptrace.h> |
| #include <machine/reg.h> |
| |
| /* Functions translating between `struct reg' and `struct fpreg' and |
| GDB's register cache. */ |
| void (*sparcbsd_supply_reg)(const char *, int); |
| void (*sparcbsd_fill_reg)(char *, int); |
| void (*sparcbsd_supply_fpreg)(const char *, int); |
| void (*sparcbsd_fill_fpreg)(char *, int); |
| |
| /* Functions indication whether `struct reg' or `struct fpreg' provides |
| a certain register. */ |
| int (*sparcbsd_reg_supplies_p)(int); |
| int (*sparcbsd_fpreg_supplies_p)(int); |
| |
| void |
| fetch_inferior_registers (int regnum) |
| { |
| if (regnum == -1 || sparcbsd_reg_supplies_p (regnum)) |
| { |
| struct reg regs; |
| |
| if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), |
| (PTRACE_ARG3_TYPE) ®s, 0) == -1) |
| perror_with_name ("Couldn't get registers"); |
| |
| sparcbsd_supply_reg ((char *) ®s, regnum); |
| if (regnum != -1) |
| return; |
| } |
| |
| if (regnum == -1 || sparcbsd_fpreg_supplies_p (regnum)) |
| { |
| struct fpreg fpregs; |
| |
| if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid), |
| (PTRACE_ARG3_TYPE) &fpregs, 0) == -1) |
| perror_with_name ("Couldn't get floating-point registers"); |
| |
| sparcbsd_supply_fpreg ((char *) &fpregs, regnum); |
| if (regnum != -1) |
| return; |
| } |
| } |
| |
| void |
| store_inferior_registers (int regnum) |
| { |
| if (regnum == -1 || sparcbsd_reg_supplies_p (regnum)) |
| { |
| struct reg regs; |
| |
| if (ptrace (PT_GETREGS, PIDGET (inferior_ptid), |
| (PTRACE_ARG3_TYPE) ®s, 0) == -1) |
| perror_with_name ("Couldn't get registers"); |
| |
| sparcbsd_fill_reg ((char *) ®s, regnum); |
| |
| if (ptrace (PT_SETREGS, PIDGET (inferior_ptid), |
| (PTRACE_ARG3_TYPE) ®s, 0) == -1) |
| perror_with_name ("Couldn't write registers"); |
| |
| /* Deal with the stack regs. */ |
| if (regnum == -1 || regnum == SPARC_SP_REGNUM |
| || (regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM)) |
| { |
| ULONGEST sp; |
| |
| regcache_cooked_read_unsigned (current_regcache, |
| SPARC_SP_REGNUM, &sp); |
| sparc_fill_rwindow (sp, regnum); |
| } |
| |
| if (regnum != -1) |
| return; |
| } |
| |
| if (regnum == -1 || sparcbsd_fpreg_supplies_p (regnum)) |
| { |
| struct fpreg fpregs; |
| |
| if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid), |
| (PTRACE_ARG3_TYPE) &fpregs, 0) == -1) |
| perror_with_name ("Couldn't get floating-point registers"); |
| |
| sparcbsd_fill_fpreg ((char *) &fpregs, regnum); |
| |
| if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid), |
| (PTRACE_ARG3_TYPE) &fpregs, 0) == -1) |
| perror_with_name ("Couldn't write floating-point registers"); |
| |
| if (regnum != -1) |
| return; |
| } |
| } |