(getopt): Allow full prototype when builind under FreeBSD.

[deliverable/binutils-gdb.git] / gdb / m68kbsd-nat.c

diff --git a/gdb/m68kbsd-nat.c b/gdb/m68kbsd-nat.c
index 8ee8a60f0a688a307f3a2057404af02c9daad589..9e1366ddbbd493c6ccf5036d821db9eb505112aa 100644 (file)
--- a/gdb/m68kbsd-nat.c
+++ b/gdb/m68kbsd-nat.c
@@ -20,6 +20,7 @@
    Boston, MA 02111-1307, USA.  */
 
 #include "defs.h"
+#include "gdbcore.h"
 #include "inferior.h"
 #include "regcache.h"
 
@@ -29,6 +30,7 @@
 #include <machine/reg.h>
 
 #include "m68k-tdep.h"
+#include "inf-ptrace.h"
 
 static int
 m68kbsd_gregset_supplies_p (int regnum)
@@ -105,16 +107,16 @@ m68kbsd_collect_fpregset (struct regcache *regcache,
 /* Fetch register REGNUM from the inferior.  If REGNUM is -1, do this
    for all registers (including the floating-point registers).  */
 
-void
-fetch_inferior_registers (int regnum)
+static void
+m68kbsd_fetch_inferior_registers (int regnum)
 {
   if (regnum == -1 || m68kbsd_gregset_supplies_p (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"));
 
       m68kbsd_supply_gregset (current_regcache, &regs);
     }
@@ -124,8 +126,8 @@ fetch_inferior_registers (int 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 status");
+                 (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
+       perror_with_name (_("Couldn't get floating point status"));
 
       m68kbsd_supply_fpregset (current_regcache, &fpregs);
     }
@@ -134,22 +136,22 @@ fetch_inferior_registers (int regnum)
 /* Store register REGNUM back into the inferior.  If REGNUM is -1, do
    this for all registers (including the floating-point registers).  */
 
-void
-store_inferior_registers (int regnum)
+static void
+m68kbsd_store_inferior_registers (int regnum)
 {
   if (regnum == -1 || m68kbsd_gregset_supplies_p (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"));
 
       m68kbsd_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"));
     }
 
   if (regnum == -1 || m68kbsd_fpregset_supplies_p (regnum))
@@ -157,13 +159,78 @@ store_inferior_registers (int 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 status");
+                 (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
+       perror_with_name (_("Couldn't get floating point status"));
 
       m68kbsd_collect_fpregset (current_regcache, &fpregs, regnum);
 
       if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
-                 (PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
-       perror_with_name ("Couldn't write floating point status");
+                 (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
+       perror_with_name (_("Couldn't write floating point status"));
     }
 }
+\f
+
+/* Support for debugging kernel virtual memory images.  */
+
+#include <sys/types.h>
+#include <machine/pcb.h>
+
+#include "bsd-kvm.h"
+
+/* OpenBSD doesn't have these.  */
+#ifndef PCB_REGS_FP
+#define PCB_REGS_FP 10
+#endif
+#ifndef PCB_REGS_SP
+#define PCB_REGS_SP 11
+#endif
+
+static int
+m68kbsd_supply_pcb (struct regcache *regcache, struct pcb *pcb)
+{
+  int regnum, tmp;
+  int i = 0;
+
+  /* The following is true for NetBSD 1.6.2:
+
+     The pcb contains %d2...%d7, %a2...%a7 and %ps.  This accounts for
+     all callee-saved registers.  From this information we reconstruct
+     the register state as it would look when we just returned from
+     cpu_switch().  */
+
+  /* The stack pointer shouldn't be zero.  */
+  if (pcb->pcb_regs[PCB_REGS_SP] == 0)
+    return 0;
+
+  for (regnum = M68K_D2_REGNUM; regnum <= M68K_D7_REGNUM; regnum++)
+    regcache_raw_supply (regcache, regnum, &pcb->pcb_regs[i++]);
+  for (regnum = M68K_A2_REGNUM; regnum <= M68K_SP_REGNUM; regnum++)
+    regcache_raw_supply (regcache, regnum, &pcb->pcb_regs[i++]);
+
+  tmp = pcb->pcb_ps & 0xffff;
+  regcache_raw_supply (regcache, M68K_PS_REGNUM, &tmp);
+
+  read_memory (pcb->pcb_regs[PCB_REGS_FP] + 4, (char *) &tmp, sizeof tmp);
+  regcache_raw_supply (regcache, M68K_PC_REGNUM, &tmp);
+
+  return 1;
+}
+\f
+
+/* Provide a prototype to silence -Wmissing-prototypes.  */
+void _initialize_m68kbsd_nat (void);
+
+void
+_initialize_m68kbsd_nat (void)
+{
+  struct target_ops *t;
+
+  t = inf_ptrace_target ();
+  t->to_fetch_registers = m68kbsd_fetch_inferior_registers;
+  t->to_store_registers = m68kbsd_store_inferior_registers;
+  add_target (t);
+
+  /* Support debugging kernel virtual memory images.  */
+  bsd_kvm_add_target (m68kbsd_supply_pcb);
+}