Remove Cell Broadband Engine debugging support

This patch implements removal of Cell/B.E. support, including
- Support for the spu-*-* target
- Support for native stand-alone SPU debugging
- Support for integrated debugging of combined PPU/SPU applications
- Remote debugging (gdbserver) support for all the above.

The patch also removes the TARGET_OBJECT_SPU target object type,
as this is available only on Cell/B.E. targets, including
- Native Linux support
- Core file support (including core file generation)
- Remote target support, including removal of the qXfer:spu:read
  and qXfer:spu:write remote protocal packets and associated
  support in gdbserver.

gdb/ChangeLog
2019-09-20  Ulrich Weigand  <uweigand@de.ibm.com>

	* NEWS: Mention that Cell/B.E. debugging support was removed.
	* MAINTAINERS: Remove spu target.

	* config/djgpp/fnchange.lst: Remove entries for removed files.

	* Makefile.in (ALL_TARGET_OBS): Remove solib-spu.o,
	spu-multiarch.o, and spu-tdep.o.
	(HFILES_NO_SRCDIR): Remove solib-spu.h and spu-tdep.h.
	(ALLDEPFILES): Remove solib-spu.c, spu-linux-nat.c,
	spu-multiarch.c, and spu-tdep.c.
	* spu-linux-nat.c: Remove file.
	* spu-multiarch.c: Remove file.
	* spu-tdep.c: Remove file.
	* spu-tdep.h: Remove file.
	* solib-spu.c: Remove file.
	* solib-spu.h: Remove file.

	* configure.host (powerpc64*-*-linux*): Remove Cell/B.E. support.
	* configure.nat (spu-linux): Remove.
	* configure.tgt (powerpc*-*-linux*): Remove solib-spu.o and
	solib-multiarch.o from gdb_target_obs.
	(spu*-*-*): Remove.

	* arch/ppc-linux-common.h (struct ppc_linux_features): Remove "cell"
	feature flag.
	(ppc_linux_no_features): Update.
	* arch/ppc-linux-common.c (ppc_linux_match_description): Remove
	Cell/B.E. support.
	* arch/ppc-linux-tdesc.h (tdesc_powerpc_cell32l): Remove declaration.
	(tdesc_powerpc_cell64l): Likewise.
	* nat/ppc-linux.h (PPC_FEATURE_CELL): Remove.
	* ppc-linux-nat.c (ppc_linux_nat_target::read_description): Remove
	Cell/B.E. support.
	* ppc-linux-tdep.h: Do not include "solib-spu.h" or "spu-tdep.h".
	Do not include "features/rs6000/powerpc-cell32l.c" or
	"features/rs6000/powerpc-cell64l.c".
	(ppc_linux_spu_section): Remove.
	(ppc_linux_core_read_description): Remove Cell/B.E. support.
	(spe_context_objfile, spe_context_lm_addr, spe_context_offset,
	spe_context_cache_ptid, spe_context_cache_ptid): Remove.
	(ppc_linux_spe_context_lookup): Remove.
	(ppc_linux_spe_context_inferior_created): Remove.
	(ppc_linux_spe_context_solib_loaded): Remove.
	(ppc_linux_spe_context_solib_unloaded): Remove.
	(ppc_linux_spe_context): Remove.
	(struct ppu2spu_cache): Remove.
	(ppu2spu_prev_arch, ppu2spu_this_id, ppu2spu_prev_register): Remove.
	(struct ppu2spu_data): Remove.
	(ppu2spu_unwind_register, ppu2spu_sniffer, ppu2spu_dealloc_cache,
	ppu2spu_unwind): Remove.
	(ppc_linux_init_abi): Remove Cell/B.E. support.
	* rs6000-tdep.h (rs6000_gdbarch_init): Remove Cell/B.E. support.

	* features/Makefile (rs6000/powerpc-cell32l-expedite): Remove.
	(rs6000/powerpc-cell64l-expedite): Likewise
	(WHICH): Remove rs6000/powerpc-cell32l and rs6000/powerpc-cell64l.
	(XMLTOC): Remove rs6000/powerpc-cell32l.xml and
	rs6000/powerpc-cell64l.xml.
	* features/rs6000/powerpc-cell32l.xml: Remove.
	* features/rs6000/powerpc-cell64l.xml: Likewise.
	* features/rs6000/powerpc-cell32l.c: Remove generated file.
	* features/rs6000/powerpc-cell64l.c: Likewise.
	* regformats/rs6000/powerpc-cell32l.dat: Remove generated file.
	* regformats/rs6000/powerpc-cell64l.dat: Likewise.
	* regformats/reg-spu.dat: Remove.

	* target.h (enum target_object): Remove TARGET_OBJECT_SPU.
	* corelow.c (struct spuid_list): Remove.
	(add_to_spuid_list): Remove.
	(core_target::xfer_partial): Remove support for TARGET_OBJECT_SPU.
	* remote.c (PACKET_qXfer_spu_read, PACKET_qXfer_spu_write): Remove.
	(remote_protocol_features): Remove associated entries.
	(_initialize_remote): No longer initialize them.
	(remote_target::xfer_partial): Remove support for TARGET_OBJECT_SPU.
	* linux-nat.c (SPUFS_MAGIC): Remove.
	(linux_proc_xfer_spu): Remove.
	(spu_enumerate_spu_ids): Remove.
	(linux_nat_target::xfer_partial): Remove support for TARGET_OBJECT_SPU.
	* linux-tdep.c (-linux_spu_make_corefile_notes): Remove.
	(linux_make_corefile_notes): No longer call it.

	* regcache.c (cooked_read_test): Remove bfd_arch_spu special case.
	(cooked_write_test): Likewise.

gdb/doc/ChangeLog
2019-09-20  Ulrich Weigand  <uweigand@de.ibm.com>

	* doc/gdb.texinfo (Remote Configuration): Remove documentation for
	qXfer:spu:read and qXfer:spu:write.
	(General Query Packets): Likewise.
	(Cell Broadband Engine SPU architecture): Remove subsection.

gdb/gdbserver/ChangeLog
2019-09-20  Ulrich Weigand  <uweigand@de.ibm.com>

	* configure.srv (ipa_ppc_linux_regobj): Remove powerpc-cell32l-ipa.o
	and powerpc-cell64l-ipa.o.
	(powerpc*-*-linux*): Remove powerpc-cell32l.o and powerpc-cell64l.o
	from srv_regobj.  Remove rs6000/powerpc-cell32l.xml and
	rs6000/powerpc-cell64l.xml from srv_xmlfiles.
	(spu*-*-*): Remove.

	* spu-low.c: Remove file.

	* linux-ppc-low.c (INSTR_SC, NR_spu_run): Remove.
	(parse_spufs_run): Remove.
	(ppc_get_pc): Remove Cell/B.E. support.
	(ppc_set_pc): Likewise.
	(ppc_breakpoint_at): Likewise.
	(ppc_arch_setup): Likewise.
	(ppc_get_ipa_tdesc_idx): Do not handle tdesc_powerpc_cell64l or
	tdesc_powerpc_cell32l.
	(initialize_low_arch): Do not call init_registers_powerpc_cell64l
	or init_registers_powerpc_cell32l.
	* linux-ppc-ipa.c (get_ipa_tdesc): Do not handle PPC_TDESC_CELL.
	(initialize_low_tracepoint): Do not call init_registers_powerpc_cell64l
	or init_registers_powerpc_cell32l.
	* linux-ppc-tdesc-init.h (PPC_TDESC_CELL): Mark as unused.
	(init_registers_powerpc_cell32l): Remove prototype.
	(init_registers_powerpc_cell64l): Likewise.

	* target.h (struct target_ops): Remove qxfer_spu member.
	* server.c (handle_qxfer_spu): Remove.
	(qxfer_packets): Remove entry for "spu".
	(handle_query): No longer support qXfer:spu:read or qXfer:spu:write.
	* linux-low.c (SPUFS_MAGIC): Remove.
	(spu_enumerate_spu_ids): Remove.
	(linux_qxfer_spu): Remove.
	(linux_target_ops): Remove qxfer_spu member.
	* lynx-low.c (lynx_target_ops): Remove qxfer_spu member.
	* nto-low.c (nto_target_ops): Remove qxfer_spu member.
	* win32-low.c (win32_target_ops): Remove qxfer_spu member.

gdb/testsuite/ChangeLog
2019-09-20  Ulrich Weigand  <uweigand@de.ibm.com>

	* gdb.arch/spu-info.exp: Remove file.
	* gdb.arch/spu-info.c: Remove file.
	* gdb.arch/spu-ls.exp: Remove file.
	* gdb.arch/spu-ls.c: Remove file.

	* gdb.asm/asm-source.exp: Remove support for spu*-*-*.
	* gdb.asm/spu.inc: Remove file.

	* gdb.base/dump.exp: Remove support for spu*-*-*.
	* gdb.base/stack-checking.exp: Likewise.
	* gdb.base/overlays.exp: Likewise.
	* gdb.base/ovlymgr.c: Likewise.
	* gdb.base/spu.ld: Remove file.

	* gdb.cp/bs15503.exp: Remove support for spu*-*-*.
	* gdb.cp/cpexprs.exp: Likewise.
	* gdb.cp/exception.exp: Likewise.
	* gdb.cp/gdb2495.exp: Likewise.
	* gdb.cp/mb-templates.exp: Likewise.
	* gdb.cp/pr9167.exp: Likewise.
	* gdb.cp/userdef.exp: Likewise.

	* gdb.xml/tdesc-regs.exp: Remove support for spu*-*-*.

	* gdb.cell: Remove directory.
	* lib/cell.exp: Remove file.

1 files changed, 0 insertions, 547 deletions

diff --git a/gdb/solib-spu.c b/gdb/solib-spu.c
deleted file mode 100644
index 49e470a..0000000
--- a/gdb/solib-spu.c
+++ /dev/null
@@ -1,547 +0,0 @@
-/* Cell SPU GNU/Linux support -- shared library handling.
-   Copyright (C) 2009-2019 Free Software Foundation, Inc.
-
-   Contributed by Ulrich Weigand <uweigand@de.ibm.com>.
-
-   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 "solib-spu.h"
-#include "gdbcore.h"
-#include <sys/stat.h>
-#include "arch-utils.h"
-#include "bfd.h"
-#include "symtab.h"
-#include "solib.h"
-#include "solib-svr4.h"
-#include "solist.h"
-#include "inferior.h"
-#include "objfiles.h"
-#include "observable.h"
-#include "breakpoint.h"
-#include "gdbthread.h"
-#include "gdb_bfd.h"
-
-#include "spu-tdep.h"
-
-/* Highest SPE id (file handle) the inferior may have.  */
-#define MAX_SPE_FD 1024
-
-/* Stand-alone SPE executable?  */
-#define spu_standalone_p() \
-  (symfile_objfile && symfile_objfile->obfd \
-   && bfd_get_arch (symfile_objfile->obfd) == bfd_arch_spu)
-
-
-/* Relocate main SPE executable.  */
-static void
-spu_relocate_main_executable (int spufs_fd)
-{
-  struct section_offsets *new_offsets;
-  int i;
-
-  if (symfile_objfile == NULL)
-    return;
-
-  new_offsets = XALLOCAVEC (struct section_offsets,
-			    symfile_objfile->num_sections);
-
-  for (i = 0; i < symfile_objfile->num_sections; i++)
-    new_offsets->offsets[i] = SPUADDR (spufs_fd, 0);
-
-  objfile_relocate (symfile_objfile, new_offsets);
-}
-
-/* When running a stand-alone SPE executable, we may need to skip one more
-   exec event on startup, to get past the binfmt_misc loader.  */
-static void
-spu_skip_standalone_loader (void)
-{
-  if (target_has_execution && !current_inferior ()->attach_flag)
-    {
-      struct target_waitstatus ws;
-
-      /* Only some kernels report an extra SIGTRAP with the binfmt_misc
-	 loader; others do not.  In addition, if we have attached to an
-	 already running inferior instead of starting a new one, we will
-	 not see the extra SIGTRAP -- and we cannot readily distinguish
-	 the two cases, in particular with the extended-remote target.
-
-	 Thus we issue a single-step here.  If no extra SIGTRAP was pending,
-	 this will step past the first instruction of the stand-alone SPE
-	 executable loader, but we don't care about that.  */
-
-      inferior_thread ()->control.in_infcall = 1; /* Suppress MI messages.  */
-
-      target_resume (inferior_ptid, 1, GDB_SIGNAL_0);
-      target_wait (minus_one_ptid, &ws, 0);
-      set_executing (minus_one_ptid, 0);
-
-      inferior_thread ()->control.in_infcall = 0;
-    }
-}
-
-static objfile_key<CORE_ADDR, gdb::noop_deleter<CORE_ADDR>>
-  ocl_program_data_key;
-
-/* Appends OpenCL programs to the list of `struct so_list' objects.  */
-static void
-append_ocl_sos (struct so_list **link_ptr)
-{
-  CORE_ADDR *ocl_program_addr_base;
-
-  for (objfile *objfile : current_program_space->objfiles ())
-    {
-      ocl_program_addr_base = ocl_program_data_key.get (objfile);
-      if (ocl_program_addr_base != NULL)
-        {
-	  enum bfd_endian byte_order = bfd_big_endian (objfile->obfd)?
-					 BFD_ENDIAN_BIG : BFD_ENDIAN_LITTLE;
-	  try
-	    {
-	      CORE_ADDR data =
-		read_memory_unsigned_integer (*ocl_program_addr_base,
-					      sizeof (CORE_ADDR),
-					      byte_order);
-	      if (data != 0x0)
-		{
-		  struct so_list *newobj;
-
-		  /* Allocate so_list structure.  */
-		  newobj = XCNEW (struct so_list);
-
-		  /* Encode FD and object ID in path name.  */
-		  xsnprintf (newobj->so_name, sizeof newobj->so_name, "@%s <%d>",
-			     hex_string (data),
-			     SPUADDR_SPU (*ocl_program_addr_base));
-		  strcpy (newobj->so_original_name, newobj->so_name);
-
-		  *link_ptr = newobj;
-		  link_ptr = &newobj->next;
-		}
-	    }
-	  catch (const gdb_exception &ex)
-	    {
-	      /* Ignore memory errors.  */
-	      switch (ex.error)
-		{
-		case MEMORY_ERROR:
-		  break;
-		default:
-		  throw;
-		  break;
-		}
-	    }
-	}
-    }
-}
-
-/* Build a list of `struct so_list' objects describing the shared
-   objects currently loaded in the inferior.  */
-static struct so_list *
-spu_current_sos (void)
-{
-  enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch ());
-  struct so_list *head;
-  struct so_list **link_ptr;
-
-  gdb_byte buf[MAX_SPE_FD * 4];
-  int i, size;
-
-  /* First, retrieve the SVR4 shared library list.  */
-  head = svr4_so_ops.current_sos ();
-
-  /* Append our libraries to the end of the list.  */
-  for (link_ptr = &head; *link_ptr; link_ptr = &(*link_ptr)->next)
-    ;
-
-  /* Determine list of SPU ids.  */
-  size = target_read (current_top_target (), TARGET_OBJECT_SPU, NULL,
-		      buf, 0, sizeof buf);
-
-  /* Do not add stand-alone SPE executable context as shared library,
-     but relocate main SPE executable objfile.  */
-  if (spu_standalone_p ())
-    {
-      if (size == 4)
-	{
-	  int fd = extract_unsigned_integer (buf, 4, byte_order);
-
-	  spu_relocate_main_executable (fd);
-
-	  /* Re-enable breakpoints after main SPU context was established;
-	     see also comments in spu_solib_create_inferior_hook.  */
-	  enable_breakpoints_after_startup ();
-	}
-
-      return head;
-    }
-
-  /* Create an so_list entry for each SPU id.  */
-  for (i = 0; i < size; i += 4)
-    {
-      int fd = extract_unsigned_integer (buf + i, 4, byte_order);
-      struct so_list *newobj;
-
-      unsigned long long addr;
-      char annex[32], id[100];
-      int len;
-
-      /* Read object ID.  There's a race window where the inferior may have
-	 already created the SPE context, but not installed the object-id
-	 yet.  Skip such entries; we'll be back for them later.  */
-      xsnprintf (annex, sizeof annex, "%d/object-id", fd);
-      len = target_read (current_top_target (), TARGET_OBJECT_SPU, annex,
-			 (gdb_byte *) id, 0, sizeof id);
-      if (len <= 0 || len >= sizeof id)
-	continue;
-      id[len] = 0;
-      if (sscanf (id, "0x%llx", &addr) != 1 || !addr)
-	continue;
-
-      /* Allocate so_list structure.  */
-      newobj = XCNEW (struct so_list);
-
-      /* Encode FD and object ID in path name.  Choose the name so as not
-	 to conflict with any (normal) SVR4 library path name.  */
-      xsnprintf (newobj->so_name, sizeof newobj->so_name, "@%s <%d>",
-		 hex_string (addr), fd);
-      strcpy (newobj->so_original_name, newobj->so_name);
-
-      *link_ptr = newobj;
-      link_ptr = &newobj->next;
-    }
-
-  /* Append OpenCL sos.  */
-  append_ocl_sos (link_ptr);
-
-  return head;
-}
-
-/* Free so_list information.  */
-static void
-spu_free_so (struct so_list *so)
-{
-  if (so->so_original_name[0] != '@')
-    svr4_so_ops.free_so (so);
-}
-
-/* Relocate section addresses.  */
-static void
-spu_relocate_section_addresses (struct so_list *so,
-				struct target_section *sec)
-{
-  if (so->so_original_name[0] != '@')
-    svr4_so_ops.relocate_section_addresses (so, sec);
-  else
-    {
-      unsigned long long addr;
-      int fd;
-
-      /* Set addr_low/high to just LS offset for display.  */
-      if (so->addr_low == 0 && so->addr_high == 0
-          && strcmp (sec->the_bfd_section->name, ".text") == 0)
-        {
-          so->addr_low = sec->addr;
-          so->addr_high = sec->endaddr;
-        }
-
-      /* Decode object ID.  */
-      if (sscanf (so->so_original_name, "@0x%llx <%d>", &addr, &fd) != 2)
-	internal_error (__FILE__, __LINE__, "bad object ID");
-
-      sec->addr = SPUADDR (fd, sec->addr);
-      sec->endaddr = SPUADDR (fd, sec->endaddr);
-    }
-}
-
-
-/* Inferior memory should contain an SPE executable image at location ADDR.
-   Allocate a BFD representing that executable.  Return NULL on error.  */
-
-static void *
-spu_bfd_iovec_open (bfd *nbfd, void *open_closure)
-{
-  return open_closure;
-}
-
-static int
-spu_bfd_iovec_close (bfd *nbfd, void *stream)
-{
-  xfree (stream);
-
-  /* Zero means success.  */
-  return 0;
-}
-
-static file_ptr
-spu_bfd_iovec_pread (bfd *abfd, void *stream, void *buf,
-                     file_ptr nbytes, file_ptr offset)
-{
-  CORE_ADDR addr = *(CORE_ADDR *)stream;
-  int ret;
-
-  ret = target_read_memory (addr + offset, (gdb_byte *) buf, nbytes);
-  if (ret != 0)
-    {
-      bfd_set_error (bfd_error_invalid_operation);
-      return -1;
-    }
-
-  return nbytes;
-}
-
-static int
-spu_bfd_iovec_stat (bfd *abfd, void *stream, struct stat *sb)
-{
-  /* We don't have an easy way of finding the size of embedded spu
-     images.  We could parse the in-memory ELF header and section
-     table to find the extent of the last section but that seems
-     pointless when the size is needed only for checks of other
-     parsed values in dbxread.c.  */
-  memset (sb, 0, sizeof (struct stat));
-  sb->st_size = INT_MAX;
-  return 0;
-}
-
-static gdb_bfd_ref_ptr
-spu_bfd_fopen (const char *name, CORE_ADDR addr)
-{
-  CORE_ADDR *open_closure = XNEW (CORE_ADDR);
-
-  *open_closure = addr;
-
-  gdb_bfd_ref_ptr nbfd (gdb_bfd_openr_iovec (name, "elf32-spu",
-					     spu_bfd_iovec_open, open_closure,
-					     spu_bfd_iovec_pread,
-					     spu_bfd_iovec_close,
-					     spu_bfd_iovec_stat));
-  if (nbfd == NULL)
-    return NULL;
-
-  if (!bfd_check_format (nbfd.get (), bfd_object))
-    return NULL;
-
-  return nbfd;
-}
-
-/* Open shared library BFD.  */
-static gdb_bfd_ref_ptr
-spu_bfd_open (const char *pathname)
-{
-  const char *original_name = strrchr (pathname, '@');
-  asection *spu_name;
-  unsigned long long addr;
-  int fd;
-
-  /* Handle regular SVR4 libraries.  */
-  if (!original_name)
-    return svr4_so_ops.bfd_open (pathname);
-
-  /* Decode object ID.  */
-  if (sscanf (original_name, "@0x%llx <%d>", &addr, &fd) != 2)
-    internal_error (__FILE__, __LINE__, "bad object ID");
-
-  /* Open BFD representing SPE executable.  */
-  gdb_bfd_ref_ptr abfd (spu_bfd_fopen (original_name, (CORE_ADDR) addr));
-  if (abfd == NULL)
-    error (_("Cannot read SPE executable at %s"), original_name);
-
-  /* Retrieve SPU name note.  */
-  spu_name = bfd_get_section_by_name (abfd.get (), ".note.spu_name");
-  if (spu_name)
-    {
-      int sect_size = bfd_section_size (spu_name);
-
-      if (sect_size > 20)
-	{
-	  char *buf
-	    = (char *) alloca (sect_size - 20 + strlen (original_name) + 1);
-
-	  bfd_get_section_contents (abfd.get (), spu_name, buf, 20,
-				    sect_size - 20);
-	  buf[sect_size - 20] = '\0';
-
-	  strcat (buf, original_name);
-
-	  bfd_set_filename (abfd.get (), xstrdup (buf));
-	}
-    }
-
-  return abfd;
-}
-
-/* Lookup global symbol in a SPE executable.  */
-static struct block_symbol
-spu_lookup_lib_symbol (struct objfile *objfile,
-		       const char *name,
-		       const domain_enum domain)
-{
-  if (bfd_get_arch (objfile->obfd) == bfd_arch_spu)
-    return lookup_global_symbol_from_objfile (objfile, GLOBAL_BLOCK, name,
-					      domain);
-
-  if (svr4_so_ops.lookup_lib_global_symbol != NULL)
-    return svr4_so_ops.lookup_lib_global_symbol (objfile, name, domain);
-  return {};
-}
-
-/* Enable shared library breakpoint.  */
-static int
-spu_enable_break (struct objfile *objfile)
-{
-  struct bound_minimal_symbol spe_event_sym;
-
-  /* The libspe library will call __spe_context_update_event whenever any
-     SPE context is allocated or destroyed.  */
-  spe_event_sym = lookup_minimal_symbol ("__spe_context_update_event",
-					 NULL, objfile);
-
-  /* Place a solib_event breakpoint on the symbol.  */
-  if (spe_event_sym.minsym)
-    {
-      CORE_ADDR addr = BMSYMBOL_VALUE_ADDRESS (spe_event_sym);
-
-      addr = gdbarch_convert_from_func_ptr_addr (target_gdbarch (), addr,
-						 current_top_target ());
-      create_solib_event_breakpoint (target_gdbarch (), addr);
-      return 1;
-    }
-
-  return 0;
-}
-
-/* Enable shared library breakpoint for the
-   OpenCL runtime running on the SPU.  */
-static void
-ocl_enable_break (struct objfile *objfile)
-{
-  struct bound_minimal_symbol event_sym;
-  struct bound_minimal_symbol addr_sym;
-
-  /* The OpenCL runtime on the SPU will call __opencl_program_update_event
-     whenever an OpenCL program is loaded.  */
-  event_sym = lookup_minimal_symbol ("__opencl_program_update_event", NULL,
-				     objfile);
-  /* The PPU address of the OpenCL program can be found
-     at opencl_elf_image_address.  */
-  addr_sym = lookup_minimal_symbol ("opencl_elf_image_address", NULL, objfile);
-
-  if (event_sym.minsym && addr_sym.minsym)
-    {
-      /* Place a solib_event breakpoint on the symbol.  */
-      CORE_ADDR event_addr = BMSYMBOL_VALUE_ADDRESS (event_sym);
-      create_solib_event_breakpoint (get_objfile_arch (objfile), event_addr);
-
-      /* Store the address of the symbol that will point to OpenCL program
-         using the per-objfile private data mechanism.  */
-      if (ocl_program_data_key.get (objfile) == NULL)
-        {
-          CORE_ADDR *ocl_program_addr_base = OBSTACK_CALLOC (
-		  &objfile->objfile_obstack,
-		  objfile->sections_end - objfile->sections,
-		  CORE_ADDR);
-	  *ocl_program_addr_base = BMSYMBOL_VALUE_ADDRESS (addr_sym);
-	  ocl_program_data_key.set (objfile, ocl_program_addr_base);
-        }
-    }
-}
-
-/* Create inferior hook.  */
-static void
-spu_solib_create_inferior_hook (int from_tty)
-{
-  /* Handle SPE stand-alone executables.  */
-  if (spu_standalone_p ())
-    {
-      /* After an SPE stand-alone executable was loaded, we'll receive
-	 an additional trap due to the binfmt_misc handler.  Make sure
-	 to skip that trap.  */
-      spu_skip_standalone_loader ();
-
-      /* If the user established breakpoints before starting the inferior, GDB
-	 would attempt to insert those now.  This would fail because the SPU
-	 context has not yet been created and the SPU executable has not yet
-	 been loaded.  To prevent such failures, we disable all user-created
-	 breakpoints now; they will be re-enabled in spu_current_sos once the
-	 main SPU context has been detected.  */
-      disable_breakpoints_before_startup ();
-
-      /* A special case arises when re-starting an executable, because at
-	 this point it still resides at the relocated address range that was
-	 determined during its last execution.  We need to undo the relocation
-	 so that that multi-architecture target recognizes the stand-alone
-	 initialization special case.  */
-      spu_relocate_main_executable (-1);
-    }
-
-  /* Call SVR4 hook -- this will re-insert the SVR4 solib breakpoints.  */
-  svr4_so_ops.solib_create_inferior_hook (from_tty);
-
-  /* If the inferior is statically linked against libspe, we need to install
-     our own solib breakpoint right now.  Otherwise, it will be installed by
-     the solib_loaded observer below as soon as libspe is loaded.  */
-  spu_enable_break (NULL);
-}
-
-/* Install SPE "shared library" handling.  This is called by -tdep code
-   that wants to support SPU as a secondary architecture.  */
-void
-set_spu_solib_ops (struct gdbarch *gdbarch)
-{
-  static struct target_so_ops spu_so_ops;
-
-  /* Initialize this lazily, to avoid an initialization order
-     dependency on solib-svr4.c's _initialize routine.  */
-  if (spu_so_ops.current_sos == NULL)
-    {
-      spu_so_ops = svr4_so_ops;
-      spu_so_ops.solib_create_inferior_hook = spu_solib_create_inferior_hook;
-      spu_so_ops.relocate_section_addresses = spu_relocate_section_addresses;
-      spu_so_ops.free_so = spu_free_so;
-      spu_so_ops.current_sos = spu_current_sos;
-      spu_so_ops.bfd_open = spu_bfd_open;
-      spu_so_ops.lookup_lib_global_symbol = spu_lookup_lib_symbol;
-    }
-
-  set_solib_ops (gdbarch, &spu_so_ops);
-}
-
-/* Observer for the solib_loaded event.  Used to install our breakpoint
-   if libspe is a shared library.  */
-static void
-spu_solib_loaded (struct so_list *so)
-{
-  if (strstr (so->so_original_name, "/libspe") != NULL)
-    {
-      solib_read_symbols (so, 0);
-      spu_enable_break (so->objfile);
-    }
-  /* In case the OpenCL runtime is loaded we install a breakpoint
-     to get notified whenever an OpenCL program gets loaded.  */
-  if (strstr (so->so_name, "CLRuntimeAccelCellSPU@") != NULL)
-    {
-      solib_read_symbols (so, 0);
-      ocl_enable_break (so->objfile);
-    }
-}
-
-void
-_initialize_spu_solib (void)
-{
-  gdb::observers::solib_loaded.attach (spu_solib_loaded);
-}
-