Normalize names of the NetBSD files

The files used to be named 'nbsd', which incorrectly reflects
the name of the OS and confuses it with other BSD derived OSes.

gdb/ChangeLog:

        * Makefile.in (ALL_64_TARGET_OBS, ALL_TARGET_OBS)
        HFILES_NO_SRCDIR, ALLDEPFILES): Rename files.
        * alpha-bsd-nat.c: Adjust include.
        * alpha-bsd-tdep.h: Adjust comment.
        * alpha-nbsd-tdep.c: Rename to ...
        * alpha-netbsd-tdep.c: ... this, adjust include.
        * amd64-nbsd-nat.c: Rename to ...
        * amd64-netbsd-nat.c: ... this, adjust include.
        * amd64-nbsd-tdep.c: Rename to ...
        * amd64-netbsd-tdep.c: ... this, adjust include.
        * amd64-tdep.h: Adjust include.
        * arm-nbsd-nat.c: Rename to ...
        * arm-netbsd-nat.c: ... this, adjust include.
        * arm-nbsd-tdep.c: Rename to ...
        * arm-netbsd-tdep.c: ... this, adjust include.
        * arm-nbsd-tdep.h: Rename to ...
        * arm-netbsd-tdep.h: ... this, adjust include.
        * configure.nat: Adjust file lists.
        * configure.tgt: Likewise.
        * hppa-nbsd-nat.c: Rename to ...
        * hppa-netbsd-nat.c: ... this, adjust include.
        * hppa-nbsd-tdep.c: Rename to ...
        * hppa-netbsd-tdep.c: ... this, adjust include.
        * i386-nbsd-nat.c: Rename to ...
        * i386-netbsd-nat.c: ... this, adjust include.
        * i386-nbsd-tdep.c: Rename to ...
        * i386-netbsd-tdep.c: ... this, adjust include.
        * m68k-bsd-nat.c: Adjust include.
        * mips-nbsd-nat.c: Rename to ...
        * mips-netbsd-nat.c: ... this, adjust include.
        * mips-nbsd-tdep.c: Rename to ...
        * mips-netbsd-tdep.c: ... this, adjust include.
        * mips-nbsd-tdep.h: Rename to ...
        * mips-netbsd-tdep.h: ... this.
        * nbsd-nat.c: Rename to ...
        * netbsd-nat.c: ... this, adjust include.
        * nbsd-nat.h: Rename to ...
        * netbsd-nat.h: ... this, adjust include.
        * nbsd-tdep.c: Rename to ...
        * netbsd-tdep.c: ... this, adjust include.
        * nbsd-tdep.h: Rename to ...
        * netbsd-tdep.h: ... this.
        * ppc-nbsd-nat.c: Rename to ...
        * ppc-netbsd-nat.c: ... this, adjust include.
        * ppc-nbsd-tdep.c: Rename to ...
        * ppc-netbsd-tdep.c: ... this, adjust include and comment.
        * ppc-nbsd-tdep.h: Rename to ...
        * ppc-netbsd-tdep.h: ... this.
        * sh-nbsd-nat.c: Rename to ...
        * sh-netbsd-nat.c: ... this, adjust include.
        * sh-nbsd-tdep.c: Rename to ...
        * sh-netbsd-tdep.c: ... this, adjust include.
        * sparc-nbsd-nat.c: Rename to ...
        * sparc-netbsd-nat.c: ... this.
        * sparc-nbsd-tdep.c: Rename to ...
        * sparc-netbsd-tdep.c: ... this, adjust include.
        * sparc64-nbsd-nat.c: Rename to ...
        * sparc64-netbsd-nat.c: ... this.
        * sparc64-nbsd-tdep.c: Rename to ...
        * sparc64-netbsd-tdep.c: ... this, adjust include.
        * sparc64-tdep.h: Adjust comment.
        * vax-bsd-nat.c: Adjust include.
        * vax-nbsd-tdep.c: Rename to ...
        * vax-netbsd-tdep.c: ... this, adjust include.

1 files changed, 220 insertions, 0 deletions

diff --git a/gdb/hppa-netbsd-tdep.c b/gdb/hppa-netbsd-tdep.c
new file mode 100644
index 0000000..5a55207
--- /dev/null
+++ b/gdb/hppa-netbsd-tdep.c
@@ -0,0 +1,220 @@
+/* Target-dependent code for NetBSD/hppa
+
+   Copyright (C) 2008-2020 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 "osabi.h"
+#include "regcache.h"
+#include "regset.h"
+
+#include "trad-frame.h"
+#include "tramp-frame.h"
+
+#include "hppa-tdep.h"
+#include "hppa-bsd-tdep.h"
+#include "netbsd-tdep.h"
+#include "gdbarch.h"
+
+/* From <machine/mcontext.h>.  */
+static int hppanbsd_mc_reg_offset[] =
+{
+  /* r0 ... r31 */
+      -1,   1 * 4,   2 * 4,   3 * 4,
+   4 * 4,   5 * 4,   6 * 4,   7 * 4,
+   8 * 4,   9 * 4,  10 * 4,  11 * 4, 
+  12 * 4,  13 * 4,  14 * 4,  15 * 4,
+  16 * 4,  17 * 4,  18 * 4,  19 * 4,
+  20 * 4,  21 * 4,  22 * 4,  23 * 4,
+  24 * 4,  25 * 4,  26 * 4,  27 * 4,
+  28 * 4,  29 * 4,  30 * 4,  31 * 4,
+
+  32 * 4,	/* HPPA_SAR_REGNUM */
+  35 * 4,	/* HPPA_PCOQ_HEAD_REGNUM */
+  33 * 4,	/* HPPA_PCSQ_HEAD_REGNUM */
+  36 * 4,	/* HPPA_PCOQ_TAIL_REGNUM */
+  34 * 4,	/* HPPA_PCSQ_TAIL_REGNUM */
+  -1,		/* HPPA_EIEM_REGNUM */
+  -1,		/* HPPA_IIR_REGNUM */
+  -1,		/* HPPA_ISR_REGNUM */
+  -1,		/* HPPA_IOR_REGNUM */
+  0 * 4,	/* HPPA_IPSW_REGNUM */
+  -1,		/* spare? */
+  41 * 4,	/* HPPA_SR4_REGNUM */
+  37 * 4,	/* sr0 */
+  38 * 4,	/* sr1 */
+  39 * 4,	/* sr2 */
+  40 * 4,	/* sr3 */
+
+  /* more tbd */
+};
+
+static void hppanbsd_sigtramp_cache_init (const struct tramp_frame *,
+                                         struct frame_info *,
+                                         struct trad_frame_cache *,
+                                         CORE_ADDR);
+
+static const struct tramp_frame hppanbsd_sigtramp_si4 =
+{
+  SIGTRAMP_FRAME,
+  4,
+  {
+    { 0xc7d7c012, ULONGEST_MAX },	/*	bb,>=,n %arg3, 30, 1f		*/
+    { 0xd6e01c1e, ULONGEST_MAX },	/*	 depwi 0,31,2,%arg3		*/
+    { 0x0ee81093, ULONGEST_MAX },	/*	ldw 4(%arg3), %r19		*/
+    { 0x0ee01097, ULONGEST_MAX },	/*	ldw 0(%arg3), %arg3		*/
+			/* 1: 					*/
+    { 0xe8404000, ULONGEST_MAX },	/* 	blr %r0, %rp			*/
+    { 0xeae0c002, ULONGEST_MAX },	/*	bv,n %r0(%arg3)			*/
+    { 0x08000240, ULONGEST_MAX },	/*	 nop				*/
+
+    { 0x0803025a, ULONGEST_MAX },	/*	copy %r3, %arg0			*/
+    { 0x20200801, ULONGEST_MAX },	/*	ldil -40000000, %r1		*/
+    { 0xe420e008, ULONGEST_MAX },	/*	be,l 4(%sr7, %r1), %sr0, %r31	*/
+    { 0x34160268, ULONGEST_MAX },	/*	 ldi 134, %t1 ; SYS_setcontext	*/
+
+    { 0x081c025a, ULONGEST_MAX },	/*	copy ret0, %arg0		*/
+    { 0x20200801, ULONGEST_MAX },	/*	ldil -40000000, %r1		*/
+    { 0xe420e008, ULONGEST_MAX },	/*	be,l 4(%sr7, %r1), %sr0, %r31	*/
+    { 0x34160002, ULONGEST_MAX },	/*	 ldi 1, %t1 ; SYS_exit		*/
+    { TRAMP_SENTINEL_INSN, ULONGEST_MAX }
+  },
+  hppanbsd_sigtramp_cache_init
+};
+
+
+static void
+hppanbsd_sigtramp_cache_init (const struct tramp_frame *self,
+                             struct frame_info *this_frame,
+                             struct trad_frame_cache *this_cache,
+                             CORE_ADDR func)
+{
+  CORE_ADDR sp = get_frame_register_unsigned (this_frame, HPPA_SP_REGNUM);
+  CORE_ADDR base;
+  int *reg_offset;
+  int num_regs;
+  int i;
+
+  reg_offset = hppanbsd_mc_reg_offset;
+  num_regs = ARRAY_SIZE (hppanbsd_mc_reg_offset);
+
+  /* frame pointer */
+  base = sp - 0x280;
+  /* offsetof(struct sigframe_siginfo, sf_uc) = 128 */
+  base += 128;
+  /* offsetof(ucontext_t, uc_mcontext) == 40 */
+  base += 40;
+
+  for (i = 0; i < num_regs; i++)
+    if (reg_offset[i] != -1)
+      trad_frame_set_reg_addr (this_cache, i, base + reg_offset[i]);
+
+  /* Construct the frame ID using the function start.  */
+  trad_frame_set_id (this_cache, frame_id_build (sp, func));
+}
+
+/* Core file support.  */
+
+/* Sizeof `struct reg' in <machine/reg.h>.  */
+#define HPPANBSD_SIZEOF_GREGS	(44 * 4)
+
+static int hppanbsd_reg_offset[] =
+{
+  /* r0 ... r31 */
+      -1,   1 * 4,   2 * 4,   3 * 4,
+   4 * 4,   5 * 4,   6 * 4,   7 * 4,
+   8 * 4,   9 * 4,  10 * 4,  11 * 4, 
+  12 * 4,  13 * 4,  14 * 4,  15 * 4,
+  16 * 4,  17 * 4,  18 * 4,  19 * 4,
+  20 * 4,  21 * 4,  22 * 4,  23 * 4,
+  24 * 4,  25 * 4,  26 * 4,  27 * 4,
+  28 * 4,  29 * 4,  30 * 4,  31 * 4,
+
+  32 * 4,	/* HPPA_SAR_REGNUM */
+  35 * 4,	/* HPPA_PCOQ_HEAD_REGNUM */
+  33 * 4,	/* HPPA_PCSQ_HEAD_REGNUM */
+  36 * 4,	/* HPPA_PCOQ_TAIL_REGNUM */
+  34 * 4,	/* HPPA_PCSQ_TAIL_REGNUM */
+  -1,		/* HPPA_EIEM_REGNUM */
+  -1,		/* HPPA_IIR_REGNUM */
+  -1,		/* HPPA_ISR_REGNUM */
+  -1,		/* HPPA_IOR_REGNUM */
+  0 * 4,	/* HPPA_IPSW_REGNUM */
+};
+
+/* Supply register REGNUM from the buffer specified by GREGS and LEN
+   in the general-purpose register set REGSET to register cache
+   REGCACHE.  If REGNUM is -1, do this for all registers in REGSET.  */
+
+static void
+hppanbsd_supply_gregset (const struct regset *regset,
+			 struct regcache *regcache,
+			 int regnum, const void *gregs, size_t len)
+{
+  const gdb_byte *regs = (const gdb_byte *) gregs;
+  int i;
+
+  gdb_assert (len >= HPPANBSD_SIZEOF_GREGS);
+
+  for (i = 0; i < ARRAY_SIZE (hppanbsd_reg_offset); i++)
+    if (hppanbsd_reg_offset[i] != -1)
+      if (regnum == -1 || regnum == i)
+	regcache->raw_supply (i, regs + hppanbsd_reg_offset[i]);
+}
+
+/* NetBSD/hppa register set.  */
+
+static const struct regset hppanbsd_gregset =
+{
+  NULL,
+  hppanbsd_supply_gregset
+};
+
+/* Iterate over supported core file register note sections. */
+
+static void
+hppanbsd_iterate_over_regset_sections (struct gdbarch *gdbarch,
+				       iterate_over_regset_sections_cb *cb,
+				       void *cb_data,
+				       const struct regcache *regcache)
+{
+  cb (".reg", HPPANBSD_SIZEOF_GREGS, HPPANBSD_SIZEOF_GREGS, &hppanbsd_gregset,
+      NULL, cb_data);
+}
+
+static void
+hppanbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+{
+  /* Obviously NetBSD is BSD-based.  */
+  hppabsd_init_abi (info, gdbarch);
+
+  nbsd_init_abi (info, gdbarch);
+
+  /* Core file support.  */
+  set_gdbarch_iterate_over_regset_sections
+    (gdbarch, hppanbsd_iterate_over_regset_sections);
+
+  tramp_frame_prepend_unwinder (gdbarch, &hppanbsd_sigtramp_si4);
+}
+
+void _initialize_hppanbsd_tdep ();
+void
+_initialize_hppanbsd_tdep ()
+{
+  gdbarch_register_osabi (bfd_arch_hppa, 0, GDB_OSABI_NETBSD,
+			  hppanbsd_init_abi);
+}