Delete Tru64 support

This commit does most of the mechanical removal.  IOW, the easy part.

procfs.c isn't touched beyond removing a couple obvious bits that are
guarded by a couple macros defined in config/alpha/nm-osf3.h.  Going
beyond that for procfs.c & co would be a harder excision that
potentially affects Solaris.

Some comments in the generic alpha code ABIs that may still be
relevant and I wouldn't know what to do with them.  That can always be
done on a separate pass, preferably by someone who can test on alpha.

A couple other spots have references to OSF/Tru64 and related files
being removed, but it felt like removing them would make things worse,
not better.  We can revisit those when we next need to touch that
code.

I didn't remove a reference to osf in testsuite/lib/future.exp, as I
believe that code is imported from DejaGNU.

Built and tested on x86_64 Fedora 20, with --enable-targets=all.

Tested that building for --target=alpha-osf3 on x86_64 Fedora 20
fails with:

 checking for default auto-load directory... $debugdir:$datadir/auto-load
 checking for default auto-load safe-path... $debugdir:$datadir/auto-load
 *** Configuration alpha-unknown-osf3 is obsolete.
 *** Support has been REMOVED.
 make[1]: *** [configure-gdb] Error 1
 make[1]: Leaving directory `build-osf'
 make: *** [all] Error 2

gdb/
2014-10-17  Pedro Alves  <palves@redhat.com>

	* Makefile.in (ALL_64_TARGET_OBS): Remove alpha-osf1-tdep.o.
	(HFILES_NO_SRCDIR): Remove config/alpha/nm-osf3.h.
	(ALLDEPFILES): Remove alpha-nat.c, alpha-osf1-tdep.c and
	solib-osf.c.
	* NEWS: Mention that support for alpha*-*-osf* has been removed.
	* ada-lang.h [__alpha__ && __osf__]
	(ADA_KNOWN_RUNTIME_FILE_NAME_PATTERNS): Delete.
	* alpha-nat.c, alpha-osf1-tdep.c: Delete files.
	* alpha-tdep.c (alpha_gdbarch_init): Remove reference to
	GDB_OSABI_OSF1.
	* config/alpha/alpha-osf3.mh, config/alpha/nm-osf3.h: Delete
	files.
	* config/djgpp/fnchange.lst (config/alpha/alpha-osf1.mh)
	(config/alpha/alpha-osf2.mh, config/alpha/alpha-osf3.mh): Delete.
	* configure: Regenerate.
	* configure.ac: Remove references to osf.
	* configure.host: Handle alpha*-*-osf* in the obsolete hosts
	section.  Remove all other references to osf.
	* configure.tgt: Add alpha*-*-osf* to the obsolete targets section.
	Remove all other references to osf.
	* dec-thread.c: Delete file.
	* defs.h (GDB_OSABI_OSF1): Delete.
	* inferior.h (START_INFERIOR_TRAPS_EXPECTED): New unconditionally
	defined.
	* osabi.c (gdb_osabi_names): Delete "OSF/1".
	* procfs.c (procfs_debug_inferior) [PROCFS_DONT_TRACE_FAULTS]:
	Delete code.
	(unconditionally_kill_inferior)
	[PROCFS_NEED_CLEAR_CURSIG_FOR_KILL]: Delete code.
	* solib-osf.c: Delete file.

gdb/testsuite/
2014-10-17  Pedro Alves  <palves@redhat.com>

	* gdb.base/callfuncs.exp: emove references to osf.
	* gdb.base/sigall.exp: Likewise.
	* gdb.gdb/selftest.exp: Likewise.
	* gdb.hp/gdb.base-hp/callfwmall.exp: Likewise.
	* gdb.mi/non-stop.c: Likewise.
	* gdb.mi/pthreads.c: Likewise.
	* gdb.reverse/sigall-precsave.exp: Likewise.
	* gdb.reverse/sigall-reverse.exp: Likewise.
	* gdb.threads/pthreads.c: Likewise.
	* gdb.threads/pthreads.exp: Likewise.

gdb/doc/
2014-10-17  Pedro Alves  <palves@redhat.com>

	* gdb.texinfo (Ada Tasks and Core Files): Delete mention of Tru64.
	(SVR4 Process Information): Delete mention of OSF/1.

1 files changed, 0 insertions, 210 deletions

diff --git a/gdb/alpha-nat.c b/gdb/alpha-nat.c
deleted file mode 100644
index 88ff62d..0000000
--- a/gdb/alpha-nat.c
+++ /dev/null
@@ -1,210 +0,0 @@
-/* Low level Alpha interface, for GDB when running native.
-   Copyright (C) 1993-2014 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 <http://www.gnu.org/licenses/>.  */
-
-#include "defs.h"
-#include "inferior.h"
-#include "gdbcore.h"
-#include "target.h"
-#include "procfs.h"
-#include "regcache.h"
-
-#include "alpha-tdep.h"
-
-#include <sys/ptrace.h>
-#include <alpha/coreregs.h>
-#include <sys/user.h>
-
-
-/* Extract the register values out of the core file and store
-   them into REGCACHE.
-
-   CORE_REG_SECT points to the register values themselves, read into memory.
-   CORE_REG_SIZE is the size of that area.
-   WHICH says which set of registers we are handling (0 = int, 2 = float
-   on machines where they are discontiguous).
-   REG_ADDR is the offset from u.u_ar0 to the register values relative to
-   core_reg_sect.  This is used with old-fashioned core files to
-   locate the registers in a large upage-plus-stack ".reg" section.
-   Original upage address X is at location core_reg_sect+x+reg_addr.  */
-
-static void
-fetch_osf_core_registers (struct regcache *regcache,
-			  char *core_reg_sect, unsigned core_reg_size,
-			  int which, CORE_ADDR reg_addr)
-{
-  struct gdbarch *gdbarch = get_regcache_arch (regcache);
-  int regno;
-  int addr;
-  int bad_reg = -1;
-
-  /* Table to map a gdb regnum to an index in the core register
-     section.  The floating point register values are garbage in
-     OSF/1.2 core files.  OSF5 uses different names for the register
-     enum list, need to handle two cases.  The actual values are the
-     same.  */
-  static int const core_reg_mapping[ALPHA_NUM_REGS] =
-  {
-#ifdef NCF_REGS
-#define EFL NCF_REGS
-    CF_V0, CF_T0, CF_T1, CF_T2, CF_T3, CF_T4, CF_T5, CF_T6,
-    CF_T7, CF_S0, CF_S1, CF_S2, CF_S3, CF_S4, CF_S5, CF_S6,
-    CF_A0, CF_A1, CF_A2, CF_A3, CF_A4, CF_A5, CF_T8, CF_T9,
-    CF_T10, CF_T11, CF_RA, CF_T12, CF_AT, CF_GP, CF_SP, -1,
-    EFL + 0, EFL + 1, EFL + 2, EFL + 3,
-    EFL + 4, EFL + 5, EFL + 6, EFL + 7,
-    EFL + 8, EFL + 9, EFL + 10, EFL + 11,
-    EFL + 12, EFL + 13, EFL + 14, EFL + 15,
-    EFL + 16, EFL + 17, EFL + 18, EFL + 19,
-    EFL + 20, EFL + 21, EFL + 22, EFL + 23,
-    EFL + 24, EFL + 25, EFL + 26, EFL + 27,
-    EFL + 28, EFL + 29, EFL + 30, EFL + 31,
-    CF_PC, -1, -1
-#else
-#define EFL (EF_SIZE / 8)
-    EF_V0, EF_T0, EF_T1, EF_T2, EF_T3, EF_T4, EF_T5, EF_T6,
-    EF_T7, EF_S0, EF_S1, EF_S2, EF_S3, EF_S4, EF_S5, EF_S6,
-    EF_A0, EF_A1, EF_A2, EF_A3, EF_A4, EF_A5, EF_T8, EF_T9,
-    EF_T10, EF_T11, EF_RA, EF_T12, EF_AT, EF_GP, EF_SP, -1,
-    EFL + 0, EFL + 1, EFL + 2, EFL + 3,
-    EFL + 4, EFL + 5, EFL + 6, EFL + 7,
-    EFL + 8, EFL + 9, EFL + 10, EFL + 11,
-    EFL + 12, EFL + 13, EFL + 14, EFL + 15,
-    EFL + 16, EFL + 17, EFL + 18, EFL + 19,
-    EFL + 20, EFL + 21, EFL + 22, EFL + 23,
-    EFL + 24, EFL + 25, EFL + 26, EFL + 27,
-    EFL + 28, EFL + 29, EFL + 30, EFL + 31,
-    EF_PC, -1, -1
-#endif
-  };
-
-  for (regno = 0; regno < ALPHA_NUM_REGS; regno++)
-    {
-      if (gdbarch_cannot_fetch_register (gdbarch, regno))
-	{
-	  regcache_raw_supply (regcache, regno, NULL);
-	  continue;
-	}
-
-      if (regno == ALPHA_ZERO_REGNUM)
-	{
-	  const gdb_byte zero[8] = { 0 };
-
-	  regcache_raw_supply (regcache, regno, zero);
-	  continue;
-	}
-
-      addr = 8 * core_reg_mapping[regno];
-      if (addr < 0 || addr >= core_reg_size)
-	{
-	  /* ??? UNIQUE is a new addition.  Don't generate an error.  */
-	  if (regno == ALPHA_UNIQUE_REGNUM)
-	    {
-	      regcache_raw_supply (regcache, regno, NULL);
-	      continue;
-	    }
-	  if (bad_reg < 0)
-	    bad_reg = regno;
-	}
-      else
-	{
-	  regcache_raw_supply (regcache, regno, core_reg_sect + addr);
-	}
-    }
-  if (bad_reg >= 0)
-    {
-      error (_("Register %s not found in core file."),
-	     gdbarch_register_name (gdbarch, bad_reg));
-    }
-}
-
-
-#include <sys/procfs.h>
-/* Prototypes for supply_gregset etc.  */
-#include "gregset.h"
-
-/* See the comment in m68k-tdep.c regarding the utility of these
-   functions.  */
-
-void
-supply_gregset (struct regcache *regcache, const gdb_gregset_t *gregsetp)
-{
-  const long *regp = gregsetp->regs;
-
-  /* PC is in slot 32.  */
-  alpha_supply_int_regs (regcache, -1, regp, regp + 31, NULL);
-}
-
-void
-fill_gregset (const struct regcache *regcache,
-	      gdb_gregset_t *gregsetp, int regno)
-{
-  long *regp = gregsetp->regs;
-
-  /* PC is in slot 32.  */
-  alpha_fill_int_regs (regcache, regno, regp, regp + 31, NULL);
-}
-
-/* Now we do the same thing for floating-point registers.
-   Again, see the comments in m68k-tdep.c.  */
-
-void
-supply_fpregset (struct regcache *regcache, const gdb_fpregset_t *fpregsetp)
-{
-  const long *regp = fpregsetp->regs;
-
-  /* FPCR is in slot 32.  */
-  alpha_supply_fp_regs (regcache, -1, regp, regp + 31);
-}
-
-void
-fill_fpregset (const struct regcache *regcache,
-	       gdb_fpregset_t *fpregsetp, int regno)
-{
-  long *regp = fpregsetp->regs;
-
-  /* FPCR is in slot 32.  */
-  alpha_fill_fp_regs (regcache, regno, regp, regp + 31);
-}
-
-
-/* Register that we are able to handle alpha core file formats.  */
-
-static struct core_fns alpha_osf_core_fns =
-{
-  /* This really is bfd_target_unknown_flavour.  */
-
-  bfd_target_unknown_flavour,		/* core_flavour */
-  default_check_format,			/* check_format */
-  default_core_sniffer,			/* core_sniffer */
-  fetch_osf_core_registers,		/* core_read_registers */
-  NULL					/* next */
-};
-
-/* Provide a prototype to silence -Wmissing-prototypes.  */
-extern initialize_file_ftype _initialize_alpha_nat;
-
-void
-_initialize_alpha_nat (void)
-{
-  struct target_ops *t;
-
-  t = procfs_target ();
-  add_target (t);
-
-  deprecated_add_core_fns (&alpha_osf_core_fns);
-}