1 files changed, 96 insertions, 0 deletions
diff --git a/gnu/usr.bin/binutils/gdb/kvm-fbsd-sparc64.h b/gnu/usr.bin/binutils/gdb/kvm-fbsd-sparc64.h
new file mode 100644
index 0000000..52ed91c
--- /dev/null
+++ b/gnu/usr.bin/binutils/gdb/kvm-fbsd-sparc64.h
@@ -0,0 +1,96 @@
+/* Kernel core dump functions below target vector, for GDB on FreeBSD/sparc64.
+   Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995
+   Free Software Foundation, Inc.
+
+This file is part of GDB.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+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.
+*/
+
+__FBSDID("$FreeBSD$");
+
+#define	SPARC_INTREG_SIZE	8
+
+static void
+fetch_kcore_registers (struct pcb *pcbp)
+{
+  static struct frame top;
+  CORE_ADDR f_addr;
+  int i;
+
+  /* Get the register values out of the sys pcb and store them where
+     `read_register' will find them.  */
+  /*
+   * XXX many registers aren't available.
+   * XXX for the non-core case, the registers are stale - they are for
+   *     the last context switch to the debugger.
+   * XXX do something with the floating-point registers?
+   */
+  supply_register (SP_REGNUM, (char *)&pcbp->pcb_ufp);
+  supply_register (PC_REGNUM, (char *)&pcbp->pcb_pc);
+  f_addr = extract_address (&pcbp->pcb_ufp, SPARC_INTREG_SIZE);
+  /* Load the previous frame by hand (XXX) and supply it. */
+  read_memory (f_addr + SPOFF, (char *)&top, sizeof (top));
+  for (i = 0; i < 8; i++)
+    supply_register (i + L0_REGNUM, (char *)&top.fr_local[i]);
+  for (i = 0; i < 8; i++)
+    supply_register (i + I0_REGNUM, (char *)&top.fr_in[i]);
+}
+
+CORE_ADDR
+fbsd_kern_frame_saved_pc (struct frame_info *fi)
+{
+  struct minimal_symbol *sym;
+  CORE_ADDR frame, pc_addr, pc;
+  char *buf;
+
+  buf = alloca (MAX_REGISTER_RAW_SIZE);
+  /* XXX: duplicates fi->extra_info->bottom. */
+  frame = (fi->next != NULL) ? fi->next->frame : read_sp ();
+  pc_addr = frame + offsetof (struct frame, fr_in[7]);
+
+#define	READ_PC(pc, a, b) do { \
+  read_memory (a, b, SPARC_INTREG_SIZE); \
+  pc = extract_address (b, SPARC_INTREG_SIZE); \
+} while (0)
+
+  READ_PC (pc, pc_addr, buf);
+
+  sym = lookup_minimal_symbol_by_pc (pc);
+  if (sym != NULL)
+    {
+      if (strncmp (SYMBOL_NAME (sym), "tl0_", 4) == 0 ||
+	  strcmp (SYMBOL_NAME (sym), "btext") == 0 ||
+	  strcmp (SYMBOL_NAME (sym), "mp_startup") == 0 ||
+	  strcmp (SYMBOL_NAME (sym), "fork_trampoline") == 0)
+        {
+	  /*
+	   * Ugly kluge: user space addresses aren't separated from kernel
+	   * ones by range; if encountering a trap from user space, just
+	   * return a 0 to stop the trace.
+	   * Do the same for entry points of kernel processes to avoid
+	   * printing garbage.
+	   */
+	  pc = 0;
+        }
+      if (strncmp (SYMBOL_NAME (sym), "tl1_", 4) == 0)
+        {
+          pc_addr = fi->frame + sizeof (struct frame) +
+	    offsetof (struct trapframe, tf_tpc);
+          READ_PC (pc, pc_addr, buf);
+	}
+    }
+  return (pc);
+}