* configure.tgt (*-*-vxworks): Match vxworks* instead.

[binutils-gdb.git] / gdb / ppcnbsd-nat.c

diff --git a/gdb/ppcnbsd-nat.c b/gdb/ppcnbsd-nat.c
index 7b22b12d1ecb6e5a2902cff9ed1308a64eada292..064f6028ce1f862c2003a42dd66b10119e80d1fe 100644 (file)
--- a/gdb/ppcnbsd-nat.c
+++ b/gdb/ppcnbsd-nat.c
@@ -1,5 +1,5 @@
 /* Native-dependent code for PowerPC's running NetBSD, for GDB.
-   Copyright 2002 Free Software Foundation, Inc.
+   Copyright 2002, 2004 Free Software Foundation, Inc.
    Contributed by Wasabi Systems, Inc.
 
    This file is part of GDB.
@@ -22,14 +22,21 @@
 #include <sys/types.h>
 #include <sys/ptrace.h>
 #include <machine/reg.h>
+#include <machine/frame.h>
+#include <machine/pcb.h>
 
 #include "defs.h"
 #include "inferior.h"
 #include "gdb_assert.h"
+#include "gdbcore.h"
+#include "regcache.h"
+#include "bsd-kvm.h"
 
 #include "ppc-tdep.h"
 #include "ppcnbsd-tdep.h"
 
+#include "inf-ptrace.h"
+
 /* Returns true if PT_GETREGS fetches this register.  */
 static int
 getregs_supplies (int regno)
@@ -68,16 +75,16 @@ getfpregs_supplies (int regno)
          || regno == tdep->ppc_fpscr_regnum);
 }
 
-void
-fetch_inferior_registers (int regno)
+static void
+ppcnbsd_fetch_inferior_registers (int regno)
 {
   if (regno == -1 || getregs_supplies (regno))
     {
       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"));
 
       ppcnbsd_supply_reg ((char *) &regs, regno);
       if (regno != -1)
@@ -89,8 +96,8 @@ fetch_inferior_registers (int regno)
       struct fpreg fpregs;
 
       if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
-                 (PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
-       perror_with_name ("Couldn't get FP registers");
+                 (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
+       perror_with_name (_("Couldn't get FP registers"));
 
       ppcnbsd_supply_fpreg ((char *) &fpregs, regno);
       if (regno != -1)
@@ -98,22 +105,22 @@ fetch_inferior_registers (int regno)
     }
 }
 
-void
-store_inferior_registers (int regno)
+static void
+ppcnbsd_store_inferior_registers (int regno)
 {
   if (regno == -1 || getregs_supplies (regno))
     {
       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"));
 
       ppcnbsd_fill_reg ((char *) &regs, regno);
 
       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"));
 
       if (regno != -1)
        return;
@@ -124,13 +131,60 @@ store_inferior_registers (int regno)
       struct fpreg fpregs;
 
       if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
-                 (PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
-       perror_with_name ("Couldn't get FP registers");
+                 (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
+       perror_with_name (_("Couldn't get FP registers"));
 
       ppcnbsd_fill_fpreg ((char *) &fpregs, regno);
       
       if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
-                 (PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
-       perror_with_name ("Couldn't set FP registers");
+                 (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
+       perror_with_name (_("Couldn't set FP registers"));
     }
 }
+
+static int
+ppcnbsd_supply_pcb (struct regcache *regcache, struct pcb *pcb)
+{
+  struct switchframe sf;
+  struct callframe cf;
+  struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+  int i;
+
+  /* The stack pointer shouldn't be zero.  */
+  if (pcb->pcb_sp == 0)
+    return 0;
+
+  read_memory (pcb->pcb_sp, (char *) &sf, sizeof sf);
+  regcache_raw_supply (regcache, tdep->ppc_cr_regnum, &sf.cr);
+  regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 2, &sf.fixreg2);
+  for (i = 0 ; i < 19 ; i++)
+    regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 13 + i,
+                        &sf.fixreg[i]);
+
+  read_memory(sf.sp, (char *)&cf, sizeof(cf));
+  regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 30, &cf.r30);
+  regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 31, &cf.r31);
+  regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 1, &cf.sp);
+
+  read_memory(cf.sp, (char *)&cf, sizeof(cf));
+  regcache_raw_supply (regcache, tdep->ppc_lr_regnum, &cf.lr);
+  regcache_raw_supply (regcache, PC_REGNUM, &cf.lr);
+
+  return 1;
+}
+
+/* Provide a prototype to silence -Wmissing-prototypes.  */
+void _initialize_ppcnbsd_nat (void);
+
+void
+_initialize_ppcnbsd_nat (void)
+{
+  struct target_ops *t;
+  /* Support debugging kernel virtual memory images.  */
+  bsd_kvm_add_target (ppcnbsd_supply_pcb);
+  /* Add in local overrides.  */
+  t = inf_ptrace_target ();
+  t->to_fetch_registers = ppcnbsd_fetch_inferior_registers;
+  t->to_store_registers = ppcnbsd_store_inferior_registers;
+  add_target (t);
+}