gdb/
* configure.host: Add tilegx target.
* tilegx-linux-nat.c: New file.
* config/tilegx/tilegx.mh: New file.
* config/tilegx/nm-linux.h: New file.
diff -r -u -N /home/packages/gdb-7.4x/gdb/config/tilegx/nm-linux.h ./gdb/config/tilegx/nm-linux.h
--- /home/packages/gdb-7.4x/gdb/config/tilegx/nm-linux.h 1969-12-31 19:00:00.000000000 -0500
+++ ./gdb/config/tilegx/nm-linux.h 2012-05-18 14:00:31.331191000 -0400
@@ -0,0 +1,25 @@
+/* Native-dependent definitions for GNU/Linux on TILE.
+
+ Copyright (C) 2012 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 3 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, see . */
+
+#ifndef NM_TILELINUX_H
+#define NM_TILELINUX_H
+
+#include "config/nm-linux.h"
+
+#endif /* NM_TILELINUX_H */
diff -r -u -N /home/packages/gdb-7.4x/gdb/config/tilegx/tilegx.mh ./gdb/config/tilegx/tilegx.mh
--- /home/packages/gdb-7.4x/gdb/config/tilegx/tilegx.mh 1969-12-31 19:00:00.000000000 -0500
+++ ./gdb/config/tilegx/tilegx.mh 2012-05-18 14:00:31.348182000 -0400
@@ -0,0 +1,12 @@
+# Host: Tilera tilegx running GNU/Linux.
+
+NAT_FILE= nm-linux.h
+NATDEPFILES= inf-ptrace.o fork-child.o \
+ tilegx-linux-nat.o \
+ proc-service.o linux-thread-db.o \
+ linux-nat.o linux-osdata.o linux-fork.o \
+ linux-procfs.o linux-ptrace.o
+
+# The dynamically loaded libthread_db needs access to symbols in the
+# gdb executable.
+LOADLIBES = -ldl $(RDYNAMIC)
diff -r -u -N /home/packages/gdb-7.4x/gdb/configure.host ./gdb/configure.host
--- /home/packages/gdb-7.4x/gdb/configure.host 2011-05-04 15:28:14.000000000 -0400
+++ ./gdb/configure.host 2012-05-18 14:00:31.368194000 -0400
@@ -50,6 +50,7 @@
sparcv9 | sparc64) gdb_host_cpu=sparc ;;
s390*) gdb_host_cpu=s390 ;;
sh*) gdb_host_cpu=sh ;;
+tilegx*) gdb_host_cpu=tilegx ;;
x86_64*) gdb_host_cpu=i386 ;;
m32r*) gdb_host_cpu=m32r ;;
xtensa*) gdb_host_cpu=xtensa ;;
@@ -159,6 +160,8 @@
gdb_host=sol2
;;
+tilegx-*-*) gdb_host=tilegx ;;
+
vax-*-bsd*) gdb_host=vax ;;
vax-*-netbsdelf* | vax-*-knetbsd*-gnu)
gdb_host=nbsdelf ;;
diff -r -u -N /home/packages/gdb-7.4x/gdb/tilegx-linux-nat.c ./gdb/tilegx-linux-nat.c
--- /home/packages/gdb-7.4x/gdb/tilegx-linux-nat.c 1969-12-31 19:00:00.000000000 -0500
+++ ./gdb/tilegx-linux-nat.c 2012-05-18 14:00:31.550178000 -0400
@@ -0,0 +1,187 @@
+/* Native-dependent code for GNU/Linux Tile
+
+ Copyright (C) 2012 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 3 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, see . */
+
+#include "defs.h"
+#include "inferior.h"
+#include "gdbcore.h"
+#include "regcache.h"
+#include "linux-nat.h"
+
+#include
+
+#include "gdb_assert.h"
+#include "gdb_string.h"
+
+#include
+
+/* Prototypes for supply_gregset etc. */
+#include "gregset.h"
+
+/* Defines ps_err_e, struct ps_prochandle. */
+#include "gdb_proc_service.h"
+
+
+/* The register sets used in GNU/Linux ELF core-dumps are identical to
+ the register sets in `struct user' that is used for a.out
+ core-dumps, and is also used by `ptrace'. The corresponding types
+ are `elf_gregset_t' for the general-purpose registers (with
+ `elf_greg_t' the type of a single GP register) and `elf_fpregset_t'
+ for the floating-point registers.
+
+ Those types used to be available under the names `gregset_t' and
+ `fpregset_t' too, and this file used those names in the past. But
+ those names are now used for the register sets used in the
+ `mcontext_t' type, and have a different size and layout. */
+
+/* Mapping between the general-purpose registers in `struct user'
+ format and GDB's register array layout. Note that we map the
+ first 56 registers (0 thru 55) one-to-one. GDB maps the pc to
+ slot 64, but ptrace returns it in slot 56. */
+static const int regmap[] =
+{
+ 0, 1, 2, 3, 4, 5, 6, 7,
+ 8, 9, 10, 11, 12, 13, 14, 15,
+ 16, 17, 18, 19, 20, 21, 22, 23,
+ 24, 25, 26, 27, 28, 29, 30, 31,
+ 32, 33, 34, 35, 36, 37, 38, 39,
+ 40, 41, 42, 43, 44, 45, 46, 47,
+ 48, 49, 50, 51, 52, 53, 54, 55,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ 56
+};
+
+
+/* Transfering the general-purpose registers between GDB, inferiors
+ and core files. */
+
+/* Fill GDB's register array with the general-purpose register values
+ in *GREGSETP. */
+
+void
+supply_gregset (struct regcache* regcache,
+ const elf_gregset_t *gregsetp)
+{
+ elf_greg_t *regp = (elf_greg_t *) gregsetp;
+ int i;
+
+ for (i = 0; i < sizeof (regmap) / sizeof (regmap[0]); i++)
+ if (regmap[i] >= 0)
+ regcache_raw_supply (regcache, i, regp + regmap[i]);
+}
+
+/* Fill registers in *GREGSETPS with the values in GDB's
+ register array. */
+
+void
+fill_gregset (const struct regcache* regcache,
+ elf_gregset_t *gregsetp, int regno)
+{
+ elf_greg_t *regp = (elf_greg_t *) gregsetp;
+ int i;
+
+ for (i = 0; i < sizeof (regmap) / sizeof (regmap[0]); i++)
+ if (regmap[i] >= 0)
+ regcache_raw_collect (regcache, i, regp + regmap[i]);
+}
+
+/* Transfering floating-point registers between GDB, inferiors and cores. */
+
+/* Fill GDB's register array with the floating-point register values in
+ *FPREGSETP. */
+
+void
+supply_fpregset (struct regcache *regcache,
+ const elf_fpregset_t *fpregsetp)
+{
+ /* NOTE: There are no floating-point registers for TILE-Gx. */
+}
+
+/* Fill register REGNO (if it is a floating-point register) in
+ *FPREGSETP with the value in GDB's register array. If REGNO is -1,
+ do this for all registers. */
+
+void
+fill_fpregset (const struct regcache *regcache,
+ elf_fpregset_t *fpregsetp, int regno)
+{
+ /* NOTE: There are no floating-point registers for TILE-Gx. */
+}
+
+
+/* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
+ for all registers. */
+
+static void
+fetch_inferior_registers (struct target_ops *ops,
+ struct regcache *regcache, int regnum)
+{
+ elf_gregset_t regs;
+ int tid;
+
+ tid = ptid_get_lwp (inferior_ptid);
+ if (tid == 0)
+ tid = ptid_get_pid (inferior_ptid);
+
+ if (ptrace (PTRACE_GETREGS, tid, 0, (PTRACE_TYPE_ARG3) ®s) < 0)
+ perror_with_name (_("Couldn't get registers"));
+
+ supply_gregset (regcache, (const elf_gregset_t *)®s);
+}
+
+/* Store register REGNUM back into the inferior. If REGNUM is -1, do
+ this for all registers. */
+
+static void
+store_inferior_registers (struct target_ops *ops,
+ struct regcache *regcache, int regnum)
+{
+ elf_gregset_t regs;
+ int tid;
+
+ tid = ptid_get_lwp (inferior_ptid);
+ if (tid == 0)
+ tid = ptid_get_pid (inferior_ptid);
+
+ if (ptrace (PTRACE_GETREGS, tid, 0, (PTRACE_TYPE_ARG3) ®s) < 0)
+ perror_with_name (_("Couldn't get registers"));
+
+ fill_gregset (regcache, ®s, regnum);
+
+ if (ptrace (PTRACE_SETREGS, tid, 0, (PTRACE_TYPE_ARG3) ®s) < 0)
+ perror_with_name (_("Couldn't write registers"));
+}
+
+
+extern initialize_file_ftype _initialize_tile_linux_nat;
+
+void
+_initialize_tile_linux_nat (void)
+{
+ struct target_ops *t;
+
+ /* Fill in the generic GNU/Linux methods. */
+ t = linux_target ();
+
+ /* Add our register access methods. */
+ t->to_fetch_registers = fetch_inferior_registers;
+ t->to_store_registers = store_inferior_registers;
+
+ /* Register the target. */
+ linux_nat_add_target (t);
+}