+\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);
+}