[PATCH 18/22] [GDBserver] Multi-process + multi-arch: GNU/Linux TILE-Gx

[Pedro Alves <palves@redhat.com>]

This adjusts the GNU/Linux TILE-Gx port to new interfaces.

Built with a cross tilegx-unknown-linux-gnu toolchain.  Otherwise not
tested.

2012-05-29  Pedro Alves  <palves@redhat.com>

	* linux-tile-low.c (tdesc_tilegx, tdesc_tilegx32): Declare
	globals.
	(target_regsets): Rename to ...
	(tile_regsets): ... this.
	(tile_regsets_info, tile_usrregs_info, regs_info): New globals.
	(tile_regs_info): New function.
	(tile_arch_setup): Set the current process'es tdesc.
	(the_low_target): Adjust.
	(initialize_low_arch): New function.
---
 gdb/gdbserver/linux-tile-low.c |   47 +++++++++++++++++++++++++++++++++++-----
 1 file changed, 41 insertions(+), 6 deletions(-)

diff --git a/gdb/gdbserver/linux-tile-low.c b/gdb/gdbserver/linux-tile-low.c
index f242675..38e2887 100644
--- a/gdb/gdbserver/linux-tile-low.c
+++ b/gdb/gdbserver/linux-tile-low.c
@@ -25,8 +25,10 @@
 
 /* Defined in auto-generated file reg-tilegx.c.  */
 void init_registers_tilegx (void);
+extern struct target_desc *tdesc_tilegx;
 /* Defined in auto-generated file reg-tilegx32.c.  */
 void init_registers_tilegx32 (void);
+extern struct target_desc *tdesc_tilegx32;
 
 #define tile_num_regs 65
 
@@ -119,13 +121,39 @@ tile_store_gregset (struct regcache *regcache, const void *buf)
       supply_register (regcache, i, ((uint_reg_t *) buf) + tile_regmap[i]);
 }
 
-struct regset_info target_regsets[] =
+static struct regset_info tile_regsets[] =
 {
   { PTRACE_GETREGS, PTRACE_SETREGS, 0, tile_num_regs * 4,
     GENERAL_REGS, tile_fill_gregset, tile_store_gregset },
   { 0, 0, 0, -1, -1, NULL, NULL }
 };
 
+static struct regsets_info tile_regsets_info =
+  {
+    tile_regsets, /* regsets */
+    0, /* num_regsets */
+    NULL, /* disabled_regsets */
+  };
+
+static struct usrregs_info tile_usrregs_info =
+  {
+    tile_num_regs,
+    tile_regmap,
+  };
+
+static struct regs_info regs_info =
+  {
+    NULL, /* regset_bitmap */
+    &tile_usrregs_info,
+    &tile_regsets_info,
+  };
+
+static const struct regs_info *
+tile_regs_info (void)
+{
+  return &regs_info;
+}
+
 static void
 tile_arch_setup (void)
 {
@@ -138,18 +166,16 @@ tile_arch_setup (void)
       error (_("Can't debug 64-bit process with 32-bit GDBserver"));
 
   if (!is_elf64)
-    init_registers_tilegx32();
+    current_process ()->tdesc = tdesc_tilegx32;
   else
-    init_registers_tilegx();
+    current_process ()->tdesc = tdesc_tilegx;
 }
 
 
 struct linux_target_ops the_low_target =
 {
   tile_arch_setup,
-  tile_num_regs,
-  tile_regmap,
-  NULL,
+  tile_regs_info,
   tile_cannot_fetch_register,
   tile_cannot_store_register,
   NULL,
@@ -161,3 +187,12 @@ struct linux_target_ops the_low_target =
   0,
   tile_breakpoint_at,
 };
+
+void
+initialize_low_arch (void)
+{
+  init_registers_tilegx32();
+  init_registers_tilegx();
+
+  initialize_regsets_info (&tile_regsets_info);
+}