Add "target kcore" to gdb53/sparc64.

Taken verbatim from the old gdb in src/gnu/dist/toolchain/gdb.

Approved by: Christos Zoulas <christos@netbsd.org>

gnu/dist/gdb/gdb/sparc64nbsd-nat.c

@@ -28,6 +28,8 @@
 #include <sys/types.h>
 #include <sys/ptrace.h>
 #include <machine/reg.h>
+#include <machine/frame.h>
+#include <machine/pcb.h>
 
 #ifndef HAVE_GREGSET_T
 typedef struct reg gregset_t;
@@ -256,3 +258,58 @@ fill_fpregset (fpregset_t *fpregsetp, int regno)
     sparcnbsd_fill_fpreg64((char *)fpregsetp, regno);
 }
 
+#ifdef	FETCH_KCORE_REGISTERS
+/*
+ * Get registers from a kernel crash dump or live kernel.
+ * Called by kcore-nbsd.c:get_kcore_registers().
+ */
+void
+fetch_kcore_registers (pcb)
+     struct pcb *pcb;
+{
+  struct rwindow64 win;
+  int i;
+  u_long sp;
+
+  /* We only do integer registers */
+  sp = pcb->pcb_sp;
+
+  supply_register(SP_REGNUM, (char *)&pcb->pcb_sp);
+  supply_register(PC_REGNUM, (char *)&pcb->pcb_pc);
+  supply_register(O7_REGNUM, (char *)&pcb->pcb_pc);
+  supply_register(PSTATE_REGNUM, (char *)&pcb->pcb_pstate);
+  supply_register(CWP_REGNUM, (char *)&pcb->pcb_cwp);
+  /*
+   * Read last register window saved on stack.
+   */
+  if (sp & 1)
+	  sp += BIAS;
+  if (target_read_memory(sp, (char *)&win, sizeof win)) {
+    printf("cannot read register window at sp=%x\n", pcb->pcb_sp);
+    bzero((char *)&win, sizeof win);
+  }
+  for (i = 0; i < sizeof(win.rw_local); ++i)
+    supply_register(i + L0_REGNUM, (char *)&win.rw_local[i]);
+  for (i = 0; i < sizeof(win.rw_in); ++i)
+    supply_register(i + I0_REGNUM, (char *)&win.rw_in[i]);
+  /*
+   * read the globals & outs saved on the stack (for a trap frame).
+   *
+   * XXXXX This is completely bogus for sparc64.
+   */
+  sp += CC64FSZ; /* XXX - MINFRAME + R_Y */
+  for (i = 1; i < 14; ++i) {
+    u_long val;
+    
+    if (target_read_memory(sp + i*4, (char *)&val, sizeof val) == 0)
+      supply_register(i, (char *)&val);
+  }
+#if 0
+  if (kvread(pcb.pcb_cpctxp, &cps) == 0)
+    supply_register(CPS_REGNUM, (char *)&cps);
+#endif
+
+  /* The kernel does not use the FPU, so ignore it. */
+  registers_fetched ();
+}
+#endif	/* FETCH_KCORE_REGISTERS */

gnu/usr.bin/gdb53/arch/sparc64/defs.mk

@@ -1,4 +1,4 @@
-# $NetBSD: defs.mk,v 1.3 2003/09/26 17:37:56 christos Exp $
+# $NetBSD: defs.mk,v 1.4 2003/11/04 19:33:39 hannken Exp $
 #
 G_GDB_OBJS=\
 annotate.o \
@@ -67,6 +67,7 @@ jv-exp.tab.o \
 jv-lang.o \
 jv-typeprint.o \
 jv-valprint.o \
+kcore-nbsd.o \
 kod-cisco.o \
 kod.o \
 language.o \

gnu/usr.bin/gdb53/arch/sparc64/init.c

@@ -36,6 +36,7 @@ extern initialize_file_ftype _initialize_ser_tcp;
 extern initialize_file_ftype _initialize_kernel_u_addr;
 extern initialize_file_ftype _initialize_infptrace;
 extern initialize_file_ftype _initialize_inftarg;
+extern initialize_file_ftype _initialize_kcore_nbsd;
 extern initialize_file_ftype _initialize_remote;
 extern initialize_file_ftype _initialize_dcache;
 extern initialize_file_ftype _initialize_sr_support;
@@ -130,6 +131,7 @@ initialize_all_files (void)
   _initialize_kernel_u_addr ();
   _initialize_infptrace ();
   _initialize_inftarg ();
+  _initialize_kcore_nbsd ();
   _initialize_remote ();
   _initialize_dcache ();
   _initialize_sr_support ();