aboutsummaryrefslogtreecommitdiff
path: root/gdb/ppcobsd-nat.c
diff options
context:
space:
mode:
Diffstat (limited to 'gdb/ppcobsd-nat.c')
-rw-r--r--gdb/ppcobsd-nat.c97
1 files changed, 97 insertions, 0 deletions
diff --git a/gdb/ppcobsd-nat.c b/gdb/ppcobsd-nat.c
new file mode 100644
index 0000000..5f43484
--- /dev/null
+++ b/gdb/ppcobsd-nat.c
@@ -0,0 +1,97 @@
+/* Native-dependent code for OpenBSD/powerpc.
+
+ Copyright 2004 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 "defs.h"
+#include "inferior.h"
+#include "regcache.h"
+
+#include <stddef.h>
+#include <sys/types.h>
+#include <sys/ptrace.h>
+#include <machine/reg.h>
+
+#include "ppcobsd-tdep.h"
+
+/* OpenBSD/powerpc doesn't have PT_GETFPREGS/PT_SETFPREGS like
+ NetBSD/powerpc and FreeBSD/powerpc. */
+
+/* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
+ for all registers. */
+
+void
+fetch_inferior_registers (int regnum)
+{
+ struct reg regs;
+
+ if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
+ (PTRACE_ARG3_TYPE) &regs, 0) == -1)
+ perror_with_name ("Couldn't get registers");
+
+ ppcobsd_supply_gregset (&ppcobsd_gregset, current_regcache, -1,
+ &regs, sizeof regs);
+}
+
+/* Store register REGNUM back into the inferior. If REGNUM is -1, do
+ this for all registers. */
+
+void
+store_inferior_registers (int regnum)
+{
+ struct reg regs;
+
+ if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
+ (PTRACE_ARG3_TYPE) &regs, 0) == -1)
+ perror_with_name ("Couldn't get registers");
+
+ ppcobsd_collect_gregset (&ppcobsd_gregset, current_regcache,
+ regnum, &regs, sizeof regs);
+
+ if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
+ (PTRACE_ARG3_TYPE) &regs, 0) == -1)
+ perror_with_name ("Couldn't write registers");
+}
+
+
+/* Provide a prototype to silence -Wmissing-prototypes. */
+void _initialize_ppcobsd_nat (void);
+
+void
+_initialize_ppcobsd_nat (void)
+{
+ /* General-purpose registers. */
+ ppcobsd_reg_offsets.r0_offset = offsetof (struct reg, gpr);
+ ppcobsd_reg_offsets.pc_offset = offsetof (struct reg, pc);
+ ppcobsd_reg_offsets.ps_offset = offsetof (struct reg, ps);
+ ppcobsd_reg_offsets.cr_offset = offsetof (struct reg, cnd);
+ ppcobsd_reg_offsets.lr_offset = offsetof (struct reg, lr);
+ ppcobsd_reg_offsets.ctr_offset = offsetof (struct reg, cnt);
+ ppcobsd_reg_offsets.xer_offset = offsetof (struct reg, xer);
+ ppcobsd_reg_offsets.mq_offset = offsetof (struct reg, mq);
+
+ /* Floating-point registers. */
+ ppcobsd_reg_offsets.f0_offset = offsetof (struct reg, fpr);
+ ppcobsd_reg_offsets.fpscr_offset = -1;
+
+ /* AltiVec registers. */
+ ppcobsd_reg_offsets.vr0_offset = offsetof (struct vreg, vreg);
+ ppcobsd_reg_offsets.vscr_offset = offsetof (struct vreg, vscr);
+ ppcobsd_reg_offsets.vrsave_offset = offsetof (struct vreg, vrsave);
+}