2003-09-17 David Carlton <carlton@kealia.com>

	* Merge with mainline; tag is carlton_dictionary-20030917-merge.

1 files changed, 237 insertions, 0 deletions

diff --git a/gdb/sparc64fbsd-tdep.c b/gdb/sparc64fbsd-tdep.c
new file mode 100644
index 00000000000..2b910c1b33d
--- /dev/null
+++ b/gdb/sparc64fbsd-tdep.c
@@ -0,0 +1,237 @@
+/* Target-dependent code for FreeBSD/sparc64.
+
+   Copyright 2003 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.  */
+
+#include "defs.h"
+#include "gdbcore.h"
+#include "osabi.h"
+#include "regcache.h"
+#include "target.h"
+
+#include "gdb_string.h"
+
+#include "sparc64-tdep.h"
+
+/* From <machine/reg.h>.  */
+
+/* Offset of registers in `struct reg'.  */
+int sparc64fbsd_r_global_offset = (0 * 8);
+int sparc64fbsd_r_out_offset = (8 * 8);
+int sparc64fbsd_r_fprs_offset = (16 * 8);
+int sparc64fbsd_r_tnpc_offset = (24 * 8);
+int sparc64fbsd_r_tpc_offset = (25 * 8);
+int sparc64fbsd_r_tstate_offset = (26 * 8);
+int sparc64fbsd_r_y_offset = (28 * 8);
+
+/* Size of `struct reg' and `struct fpreg'.  */
+int sparc64fbsd_sizeof_struct_reg = 256;
+int sparc64fbsd_sizeof_struct_fpreg = 272;
+
+void
+sparc64fbsd_supply_reg (const char *regs, int regnum)
+{
+  char buf[8];
+  int i;
+
+  if (regnum == SPARC64_PC_REGNUM || regnum == -1)
+    supply_register (SPARC64_PC_REGNUM, regs + sparc64fbsd_r_tpc_offset);
+
+  if (regnum == SPARC64_NPC_REGNUM || regnum == -1)
+    supply_register (SPARC64_NPC_REGNUM, regs + sparc64fbsd_r_tnpc_offset);
+
+  if (regnum == SPARC64_STATE_REGNUM || regnum == -1)
+    supply_register (SPARC64_STATE_REGNUM, regs + sparc64fbsd_r_tstate_offset);
+
+  if (regnum == SPARC64_FPRS_REGNUM || regnum == -1)
+    supply_register (SPARC64_FPRS_REGNUM, regs + sparc64fbsd_r_fprs_offset);
+
+  if (regnum == SPARC64_Y_REGNUM || regnum == -1)
+    supply_register (SPARC64_Y_REGNUM, regs + sparc64fbsd_r_y_offset);
+
+  if ((regnum >= SPARC_G0_REGNUM && regnum <= SPARC_G7_REGNUM) || regnum == -1)
+    {
+      if (regnum == SPARC_G0_REGNUM || regnum == -1)
+	supply_register (SPARC_G0_REGNUM, NULL); /* %g0 is always zero.  */
+      for (i = SPARC_G1_REGNUM; i <= SPARC_G7_REGNUM; i++)
+	{
+	  if (regnum == i || regnum == -1)
+	    supply_register (i, (regs + sparc64fbsd_r_global_offset
+				 + ((i - SPARC_G0_REGNUM) * 8)));
+	}
+    }
+
+  if ((regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1)
+    {
+      for (i = SPARC_O0_REGNUM; i <= SPARC_O7_REGNUM; i++)
+	{
+	  if (regnum == i || regnum == -1)
+	    supply_register (i, (regs + sparc64fbsd_r_out_offset
+				 + ((i - SPARC_O0_REGNUM) * 8)));
+        }
+    }
+
+  /* Inputs and Locals are stored onto the stack by by the kernel.  */
+  if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) || regnum == -1)
+    {
+      ULONGEST sp;
+
+      regcache_cooked_read_unsigned (current_regcache, SPARC_SP_REGNUM, &sp);
+      sparc_supply_rwindow (sp, regnum);
+    }
+}
+
+void
+sparc64fbsd_fill_reg (char *regs, int regnum)
+{
+  char buf[8];
+  int i;
+
+  if (regnum == SPARC64_PC_REGNUM || regnum == -1)
+    regcache_collect (SPARC64_PC_REGNUM, regs + sparc64fbsd_r_tpc_offset);
+
+  if (regnum == SPARC64_NPC_REGNUM || regnum == -1)
+    regcache_collect (SPARC64_NPC_REGNUM, regs + sparc64fbsd_r_tnpc_offset);
+
+  if (regnum == SPARC64_FPRS_REGNUM || regnum == -1)
+    regcache_collect (SPARC64_FPRS_REGNUM, regs + sparc64fbsd_r_fprs_offset);
+
+  if (regnum == SPARC64_Y_REGNUM || regnum == -1)
+    regcache_collect (SPARC64_Y_REGNUM, regs + sparc64fbsd_r_y_offset);
+
+  if ((regnum >= SPARC_G0_REGNUM && regnum <= SPARC_G7_REGNUM) || regnum == -1)
+    {
+      /* %g0 is always zero.  */
+      for (i = SPARC_G1_REGNUM; i <= SPARC_G7_REGNUM; i++)
+	{
+	  if (regnum == i || regnum == -1)
+	    regcache_collect (i, (regs + sparc64fbsd_r_global_offset
+				  + ((i - SPARC_G0_REGNUM) * 8)));
+	}
+    }
+
+  if ((regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1)
+    {
+      for (i = SPARC_O0_REGNUM; i <= SPARC_O7_REGNUM; i++)
+	{
+	  if (regnum == i || regnum == -1)
+	    regcache_collect (i, (regs + sparc64fbsd_r_out_offset
+				  + ((i - SPARC_O0_REGNUM) * 8)));
+        }
+    }
+
+  /* Responsibility for the stack regs is pushed off onto the caller.  */
+}
+
+void
+sparc64fbsd_supply_fpreg (const char *fpregs, int regnum)
+{
+  int i;
+
+  for (i = 0; i < 32; i++)
+    {
+      if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1)
+	supply_register (SPARC_F0_REGNUM + i, fpregs + (i * 4));
+    }
+
+  for (i = 0; i < 16; i++)
+    {
+      if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1)
+	supply_register (SPARC64_F32_REGNUM + i, fpregs + (32 * 4) + (i * 8));
+    }
+
+  if (regnum == SPARC64_FSR_REGNUM || regnum == -1)
+    supply_register (SPARC64_FSR_REGNUM, fpregs + (32 * 4) + (16 * 8));
+}
+
+void
+sparc64fbsd_fill_fpreg (char *fpregs, int regnum)
+{
+  int i;
+
+  for (i = 0; i < 32; i++)
+    {
+      if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1)
+	regcache_collect (SPARC_F0_REGNUM + i, fpregs + (i * 4));
+    }
+
+  for (i = 0; i < 16; i++)
+    {
+      if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1)
+	regcache_collect (SPARC64_F32_REGNUM + i, fpregs + (32 * 4) + (i * 8));
+    }
+
+  if (regnum == SPARC64_FSR_REGNUM || regnum == -1)
+    regcache_collect (SPARC64_FSR_REGNUM, fpregs + (32 * 4) + (16 * 8));
+}
+
+
+static void
+fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which,
+                      CORE_ADDR ignore)
+{
+  switch (which)
+    {
+    case 0:  /* Integer registers */
+      if (core_reg_size != sparc64fbsd_sizeof_struct_reg)
+	warning ("Wrong size register set in core file.");
+      else
+	sparc64fbsd_supply_reg (core_reg_sect, -1);
+      break;
+
+    case 2:  /* Floating pointer registers */
+      if (core_reg_size != sparc64fbsd_sizeof_struct_fpreg)
+	warning ("Wrong size FP register set in core file.");
+      else
+	sparc64fbsd_supply_fpreg (core_reg_sect, -1);
+      break;
+
+    default:
+      /* Don't know what kind of register request this is; just ignore it.  */
+      break;
+    }
+}
+
+static struct core_fns sparc64fbsd_core_fns =
+{
+  bfd_target_elf_flavour,		/* core_flavour */
+  default_check_format,			/* check_format */
+  default_core_sniffer,			/* core_sniffer */
+  fetch_core_registers,			/* core_read_registers */
+  NULL
+};
+
+
+static void
+sparc64fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+{
+  /* Nothing yet.  */
+}
+
+/* Provide a prototype to silence -Wmissing-prototypes.  */
+void _initialize_sparc64fbsd_tdep (void);
+
+void
+_initialize_sparc64fbsd_tdep (void)
+{
+  gdbarch_register_osabi (bfd_arch_sparc, bfd_mach_sparc_v9,
+			  GDB_OSABI_FREEBSD_ELF, sparc64fbsd_init_abi);
+
+  add_core_fns (&sparc64fbsd_core_fns);
+}