diff options
Diffstat (limited to 'gdb/sparcbsd-nat.c')
| -rw-r--r-- | gdb/sparcbsd-nat.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/gdb/sparcbsd-nat.c b/gdb/sparcbsd-nat.c new file mode 100644 index 00000000000..8ab95375d08 --- /dev/null +++ b/gdb/sparcbsd-nat.c @@ -0,0 +1,126 @@ +/* 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; + } +} |