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[deliverable/binutils-gdb.git] / gdb / vaxbsd-nat.c

diff --git a/gdb/vaxbsd-nat.c b/gdb/vaxbsd-nat.c
index d3516f6b86b585a28ce8b0640acab650f56d31a7..fa5cfac5661facbb3f185ecaeecdcf6f11d21c47 100644 (file)
--- a/gdb/vaxbsd-nat.c
+++ b/gdb/vaxbsd-nat.c
@@ -1,6 +1,6 @@
-/* Native-dependent code for VAX BSD's.
+/* Native-dependent code for modern VAX BSD's.
 
-   Copyright 2004 Free Software Foundation, Inc.
+   Copyright (C) 2004, 2005 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -16,25 +16,27 @@
 
    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.  */
+   Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.  */
 
 #include "defs.h"
 #include "inferior.h"
 #include "regcache.h"
+#include "target.h"
 
 #include <sys/types.h>
 #include <sys/ptrace.h>
 #include <machine/reg.h>
 
 #include "vax-tdep.h"
+#include "inf-ptrace.h"
 
 /* Supply the general-purpose registers stored in GREGS to REGCACHE.  */
 
 static void
 vaxbsd_supply_gregset (struct regcache *regcache, const void *gregs)
 {
-  const char *regs = gregs;
+  const gdb_byte *regs = gregs;
   int regnum;
 
   for (regnum = 0; regnum < VAX_NUM_REGS; regnum++)
@@ -48,13 +50,13 @@ static void
 vaxbsd_collect_gregset (const struct regcache *regcache,
                        void *gregs, int regnum)
 {
-  char *regs = gregs;
+  gdb_byte *regs = gregs;
   int i;
 
   for (i = 0; i <= VAX_NUM_REGS; i++)
     {
       if (regnum == -1 || regnum == i)
-       regcache_raw_collect (regcache, regnum, regs + i * 4);
+       regcache_raw_collect (regcache, i, regs + i * 4);
     }
 }
 \f
@@ -62,14 +64,14 @@ vaxbsd_collect_gregset (const struct regcache *regcache,
 /* Fetch register REGNUM from the inferior.  If REGNUM is -1, do this
    for all registers.  */
 
-void
-fetch_inferior_registers (int regnum)
+static void
+vaxbsd_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");
+             (PTRACE_TYPE_ARG3) &regs, 0) == -1)
+    perror_with_name (_("Couldn't get registers"));
 
   vaxbsd_supply_gregset (current_regcache, &regs);
 }
@@ -77,18 +79,69 @@ fetch_inferior_registers (int regnum)
 /* Store register REGNUM back into the inferior.  If REGNUM is -1, do
    this for all registers.  */
 
-void
-store_inferior_registers (int regnum)
+static void
+vaxbsd_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");
+             (PTRACE_TYPE_ARG3) &regs, 0) == -1)
+    perror_with_name (_("Couldn't get registers"));
 
   vaxbsd_collect_gregset (current_regcache, &regs, regnum);
 
   if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
-             (PTRACE_ARG3_TYPE) &regs, 0) == -1)
-    perror_with_name ("Couldn't write registers");
+             (PTRACE_TYPE_ARG3) &regs, 0) == -1)
+    perror_with_name (_("Couldn't write registers"));
+}
+\f
+
+/* Support for debugging kernel virtual memory images.  */
+
+#include <sys/types.h>
+#include <machine/pcb.h>
+
+#include "bsd-kvm.h"
+
+static int
+vaxbsd_supply_pcb (struct regcache *regcache, struct pcb *pcb)
+{
+  int regnum;
+
+  /* The following is true for OpenBSD 3.5:
+
+     The pcb contains the register state at the context switch inside
+     cpu_switch().  */
+
+  /* The stack pointer shouldn't be zero.  */
+  if (pcb->KSP == 0)
+    return 0;
+
+  for (regnum = VAX_R0_REGNUM; regnum < VAX_AP_REGNUM; regnum++)
+    regcache_raw_supply (regcache, regnum, &pcb->R[regnum - VAX_R0_REGNUM]);
+  regcache_raw_supply (regcache, VAX_AP_REGNUM, &pcb->AP);
+  regcache_raw_supply (regcache, VAX_FP_REGNUM, &pcb->FP);
+  regcache_raw_supply (regcache, VAX_SP_REGNUM, &pcb->KSP);
+  regcache_raw_supply (regcache, VAX_PC_REGNUM, &pcb->PC);
+  regcache_raw_supply (regcache, VAX_PS_REGNUM, &pcb->PSL);
+
+  return 1;
+}
+\f
+
+/* Provide a prototype to silence -Wmissing-prototypes.  */
+void _initialize_vaxbsd_nat (void);
+
+void
+_initialize_vaxbsd_nat (void)
+{
+  struct target_ops *t;
+
+  t = inf_ptrace_target ();
+  t->to_fetch_registers = vaxbsd_fetch_inferior_registers;
+  t->to_store_registers = vaxbsd_store_inferior_registers;
+  add_target (t);
+
+  /* Support debugging kernel virtual memory images.  */
+  bsd_kvm_add_target (vaxbsd_supply_pcb);
 }