[deliverable/binutils-gdb.git] / ld / emultempl / spuelf.em

# This shell script emits a C file. -*- C -*-
#   Copyright 2006, 2007 Free Software Foundation, Inc.
#
# This file is part of GLD, the Gnu Linker.
#
# 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 2 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, write to the Free Software Foundation, Inc.,
# 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
#

# This file is sourced from elf32.em, and defines extra spu specific
# features.
#
cat >>e${EMULATION_NAME}.c <<EOF
#include "ldctor.h"
#include "elf32-spu.h"

/* Non-zero if no overlay processing should be done.  */
static int no_overlays = 0;

/* Non-zero if we want stubs on all calls out of overlay regions.  */
static int non_overlay_stubs = 0;

/* Whether to emit symbols for stubs.  */
static int emit_stub_syms = 0;

/* Non-zero to perform stack space analysis.  */
static int stack_analysis = 0;

/* Whether to emit symbols with stack requirements for each function.  */
static int emit_stack_syms = 0;

/* Range of valid addresses for loadable sections.  */
static bfd_vma local_store_lo = 0;
static bfd_vma local_store_hi = 0x3ffff;

static const char ovl_mgr[] = {
EOF

../binutils/bin2c < ${srcdir}/emultempl/spu_ovl.o >> e${EMULATION_NAME}.c

cat >>e${EMULATION_NAME}.c <<EOF
};

static const struct _ovl_stream ovl_mgr_stream = {
  ovl_mgr,
  ovl_mgr + sizeof (ovl_mgr)
};

static asection *toe = NULL;


static int
is_spu_target (void)
{
  extern const bfd_target bfd_elf32_spu_vec;

  return link_info.hash->creator == &bfd_elf32_spu_vec;
}

/* Create our note section.  */

static void
spu_after_open (void)
{
  if (is_spu_target ()
      && !link_info.relocatable
      && link_info.input_bfds != NULL
      && !spu_elf_create_sections (output_bfd, &link_info,
				   stack_analysis, emit_stack_syms))
    einfo ("%X%P: can not create note section: %E\n");

  gld${EMULATION_NAME}_after_open ();
}

/* Add section S at the end of output section OUTPUT_NAME.

   Really, we should be duplicating ldlang.c map_input_to_output_sections
   logic here, ie. using the linker script to find where the section
   goes.  That's rather a lot of code, and we don't want to run
   map_input_to_output_sections again because most sections are already
   mapped.  So cheat, and put the section in a fixed place, ignoring any
   attempt via a linker script to put .stub, .ovtab, and built-in
   overlay manager code somewhere else.  */

static void
spu_place_special_section (asection *s, const char *output_name)
{
  lang_output_section_statement_type *os;

  os = lang_output_section_find (output_name);
  if (os == NULL)
    {
      const char *save = s->name;
      s->name = output_name;
      gld${EMULATION_NAME}_place_orphan (s);
      s->name = save;
    }
  else
    lang_add_section (&os->children, s, os);

  s->output_section->size += s->size;
}

/* Load built-in overlay manager, and tweak overlay section alignment.  */

static void
spu_elf_load_ovl_mgr (void)
{
  lang_output_section_statement_type *os;
  struct elf_link_hash_entry *h;

  h = elf_link_hash_lookup (elf_hash_table (&link_info),
			    "__ovly_load", FALSE, FALSE, FALSE);

  if (h != NULL
      && (h->root.type == bfd_link_hash_defined
	  || h->root.type == bfd_link_hash_defweak)
      && h->def_regular)
    {
      /* User supplied __ovly_load.  */
    }
  else if (ovl_mgr_stream.start == ovl_mgr_stream.end)
    einfo ("%F%P: no built-in overlay manager\n");
  else
    {
      lang_input_statement_type *ovl_is;

      ovl_is = lang_add_input_file ("builtin ovl_mgr",
				    lang_input_file_is_file_enum,
				    NULL);

      if (!spu_elf_open_builtin_lib (&ovl_is->the_bfd, &ovl_mgr_stream))
	einfo ("%X%P: can not open built-in overlay manager: %E\n");
      else
	{
	  asection *in;

	  if (!load_symbols (ovl_is, NULL))
	    einfo ("%X%P: can not load built-in overlay manager: %E\n");

	  /* Map overlay manager sections to output sections.  */
	  for (in = ovl_is->the_bfd->sections; in != NULL; in = in->next)
	    if ((in->flags & (SEC_ALLOC | SEC_LOAD))
		== (SEC_ALLOC | SEC_LOAD))
	      spu_place_special_section (in, ".text");
	}
    }

  /* Ensure alignment of overlay sections is sufficient.  */
  for (os = &lang_output_section_statement.head->output_section_statement;
       os != NULL;
       os = os->next)
    if (os->bfd_section != NULL
	&& spu_elf_section_data (os->bfd_section) != NULL
	&& spu_elf_section_data (os->bfd_section)->ovl_index != 0)
      {
	if (os->bfd_section->alignment_power < 4)
	  os->bfd_section->alignment_power = 4;

	/* Also ensure size rounds up.  */
	os->block_value = 16;
      }
}

/* Go find if we need to do anything special for overlays.  */

static void
spu_before_allocation (void)
{
  if (is_spu_target ()
      && !link_info.relocatable
      && !no_overlays)
    {
      /* Size the sections.  This is premature, but we need to know the
	 rough layout so that overlays can be found.  */
      expld.phase = lang_mark_phase_enum;
      expld.dataseg.phase = exp_dataseg_none;
      one_lang_size_sections_pass (NULL, TRUE);

      /* Find overlays by inspecting section vmas.  */
      if (spu_elf_find_overlays (output_bfd, &link_info))
	{
	  asection *stub, *ovtab;

	  if (!spu_elf_size_stubs (output_bfd, &link_info, non_overlay_stubs,
				   stack_analysis, &stub, &ovtab, &toe))
	    einfo ("%X%P: can not size overlay stubs: %E\n");

	  if (stub != NULL)
	    {
	      spu_place_special_section (stub, ".text");
	      spu_place_special_section (ovtab, ".data");
	      spu_place_special_section (toe, ".toe");

	      spu_elf_load_ovl_mgr ();
	    }
	}

      /* We must not cache anything from the preliminary sizing.  */
      lang_reset_memory_regions ();
    }

  gld${EMULATION_NAME}_before_allocation ();
}

/* Final emulation specific call.  */

static void
gld${EMULATION_NAME}_finish (void)
{
  int need_laying_out;

  need_laying_out = bfd_elf_discard_info (output_bfd, &link_info);

  gld${EMULATION_NAME}_map_segments (need_laying_out);

  if (is_spu_target () && local_store_lo < local_store_hi)
    {
      asection *s;

      s = spu_elf_check_vma (output_bfd, local_store_lo, local_store_hi);
      if (s != NULL)
	einfo ("%X%P: %A exceeds local store range\n", s);
    }

  if (toe != NULL
      && !spu_elf_build_stubs (&link_info,
			       emit_stub_syms || link_info.emitrelocations,
			       toe))
    einfo ("%X%P: can not build overlay stubs: %E\n");

  finish_default ();
}

EOF

if grep -q 'ld_elf.*ppc.*_emulation' ldemul-list.h; then
  cat >>e${EMULATION_NAME}.c <<EOF
#include "filenames.h"
#include <fcntl.h>
#include <sys/wait.h>

struct tflist {
  struct tflist *next;
  char name[9];
};

static struct tflist *tmp_file_list;

static void clean_tmp (void)
{
  for (; tmp_file_list != NULL; tmp_file_list = tmp_file_list->next)
    unlink (tmp_file_list->name);
}

/* This function is called when building a ppc32 or ppc64 executable
   to handle embedded spu images.  */
extern bfd_boolean embedded_spu_file (lang_input_statement_type *, const char *);

bfd_boolean
embedded_spu_file (lang_input_statement_type *entry, const char *flags)
{
  const char *cmd[6];
  const char *sym;
  char *handle, *p;
  struct tflist *tf;
  char *oname;
  int fd;
  pid_t pid;
  int status;
  union lang_statement_union **old_stat_tail;
  union lang_statement_union **old_file_tail;
  union lang_statement_union *new_ent;

  if (entry->the_bfd->format != bfd_object
      || strcmp (entry->the_bfd->xvec->name, "elf32-spu") != 0
      || (entry->the_bfd->tdata.elf_obj_data->elf_header->e_type != ET_EXEC
	  && entry->the_bfd->tdata.elf_obj_data->elf_header->e_type != ET_DYN))
    return FALSE;

  /* Use the filename as the symbol marking the program handle struct.  */
  sym = strrchr (entry->the_bfd->filename, '/');
#ifdef HAVE_DOS_BASED_FILE_SYSTEM
  {
    char *bslash = strrchr (entry->the_bfd->filename, '\\');

    if (sym == NULL || (bslash != NULL && bslash > sym))
      sym = bslash;
    if (sym == NULL
	&& entry->the_bfd->filename[0] != '\0'
	&& entry->the_bfd->filename[1] == ':')
      sym = entry->the_bfd->filename + 1;
  }
#endif
  if (sym == NULL)
    sym = entry->the_bfd->filename;
  else
    ++sym;

  handle = xstrdup (sym);
  for (p = handle; *p; ++p)
    if (!(ISALNUM (*p) || *p == '$' || *p == '.'))
      *p = '_';

  if (tmp_file_list == NULL)
    atexit (clean_tmp);
  tf = xmalloc (sizeof (*tf));
  tf->next = tmp_file_list;
  tmp_file_list = tf;
  oname = tf->name;
  memcpy (tf->name, "ldXXXXXX", sizeof (tf->name));

#ifdef HAVE_MKSTEMP
  fd = mkstemp (oname);
#else
  oname = mktemp (oname);
  if (oname == NULL)
    return FALSE;
  fd = open (oname, O_RDWR | O_CREAT | O_EXCL, 0600);
#endif
  if (fd == -1)
    return FALSE;
  close (fd);

  /* Use fork() and exec() rather than system() so that we don't
     need to worry about quoting args.  */
  cmd[0] = "embedspu";
  cmd[1] = flags;
  cmd[2] = handle;
  cmd[3] = entry->the_bfd->filename;
  cmd[4] = oname;
  cmd[5] = NULL;
  if (trace_file_tries)
    {
      info_msg (_("running: %s \"%s\" \"%s\" \"%s\" \"%s\"\n"),
		cmd[0], cmd[1], cmd[2], cmd[3], cmd[4]);
      fflush (stdout);
    }

  pid = fork ();
  if (pid == -1)
    return FALSE;
  if (pid == 0)
    {
      execvp (cmd[0], (char *const *) cmd);
      perror (cmd[0]);
      _exit (127);
    }
#ifdef HAVE_WAITPID
#define WAITFOR(PID, STAT) waitpid (PID, STAT, 0)
#else
#define WAITFOR(PID, STAT) wait (STAT)
#endif
  if (WAITFOR (pid, &status) != pid
      || !WIFEXITED (status)
      || WEXITSTATUS (status) != 0)
    return FALSE;
#undef WAITFOR

  old_stat_tail = stat_ptr->tail;
  old_file_tail = input_file_chain.tail;
  if (lang_add_input_file (oname, lang_input_file_is_file_enum, NULL) == NULL)
    return FALSE;

  /* lang_add_input_file put the new list entry at the end of the statement
     and input file lists.  Move it to just after the current entry.  */
  new_ent = *old_stat_tail;
  *old_stat_tail = NULL;
  stat_ptr->tail = old_stat_tail;
  *old_file_tail = NULL;
  input_file_chain.tail = old_file_tail;
  new_ent->header.next = entry->header.next;
  entry->header.next = new_ent;
  new_ent->input_statement.next_real_file = entry->next_real_file;
  entry->next_real_file = new_ent;

  /* Ensure bfd sections are excluded from the output.  */
  bfd_section_list_clear (entry->the_bfd);
  entry->loaded = TRUE;
  return TRUE;
}

EOF
fi

# Define some shell vars to insert bits of code into the standard elf
# parse_args and list_options functions.
#
PARSE_AND_LIST_PROLOGUE='
#define OPTION_SPU_PLUGIN		301
#define OPTION_SPU_NO_OVERLAYS		(OPTION_SPU_PLUGIN + 1)
#define OPTION_SPU_STUB_SYMS		(OPTION_SPU_NO_OVERLAYS + 1)
#define OPTION_SPU_NON_OVERLAY_STUBS	(OPTION_SPU_STUB_SYMS + 1)
#define OPTION_SPU_LOCAL_STORE		(OPTION_SPU_NON_OVERLAY_STUBS + 1)
#define OPTION_SPU_STACK_ANALYSIS	(OPTION_SPU_LOCAL_STORE + 1)
#define OPTION_SPU_STACK_SYMS		(OPTION_SPU_STACK_ANALYSIS + 1)
'

PARSE_AND_LIST_LONGOPTS='
  { "plugin", no_argument, NULL, OPTION_SPU_PLUGIN },
  { "no-overlays", no_argument, NULL, OPTION_SPU_NO_OVERLAYS },
  { "emit-stub-syms", no_argument, NULL, OPTION_SPU_STUB_SYMS },
  { "extra-overlay-stubs", no_argument, NULL, OPTION_SPU_NON_OVERLAY_STUBS },
  { "local-store", required_argument, NULL, OPTION_SPU_LOCAL_STORE },
  { "stack-analysis", no_argument, NULL, OPTION_SPU_STACK_ANALYSIS },
  { "emit-stack-syms", no_argument, NULL, OPTION_SPU_STACK_SYMS },
'

PARSE_AND_LIST_OPTIONS='
  fprintf (file, _("\
  --plugin              Make SPU plugin.\n\
  --no-overlays         No overlay handling.\n\
  --emit-stub-syms      Add symbols on overlay call stubs.\n\
  --extra-overlay-stubs Add stubs on all calls out of overlay regions.\n\
  --local-store=lo:hi   Valid address range.\n\
  --stack-analysis      Estimate maximum stack requirement.\n\
  --emit-stack-syms     Add __stack_func giving stack needed for each func.\n"
		   ));
'

PARSE_AND_LIST_ARGS_CASES='
    case OPTION_SPU_PLUGIN:
      spu_elf_plugin (1);
      break;

    case OPTION_SPU_NO_OVERLAYS:
      no_overlays = 1;
      break;

    case OPTION_SPU_STUB_SYMS:
      emit_stub_syms = 1;
      break;

    case OPTION_SPU_NON_OVERLAY_STUBS:
      non_overlay_stubs = 1;
      break;

    case OPTION_SPU_LOCAL_STORE:
      {
	char *end;
	local_store_lo = strtoul (optarg, &end, 0);
	if (*end == '\'':'\'')
	  {
	    local_store_hi = strtoul (end + 1, &end, 0);
	    if (*end == 0)
	      break;
	  }
	einfo (_("%P%F: invalid --local-store address range `%s'\''\n"), optarg);
      }
      break;

    case OPTION_SPU_STACK_ANALYSIS:
      stack_analysis = 1;
      break;

    case OPTION_SPU_STACK_SYMS:
      emit_stack_syms = 1;
      break;
'

LDEMUL_AFTER_OPEN=spu_after_open
LDEMUL_BEFORE_ALLOCATION=spu_before_allocation
LDEMUL_FINISH=gld${EMULATION_NAME}_finish
Commit	Line	Data
e9f53129	1	# This shell script emits a C file. -- C --
671ace2f	2	# Copyright 2006, 2007 Free Software Foundation, Inc.
e9f53129 AM	3	#
	4	# This file is part of GLD, the Gnu Linker.
	5	#
	6	# This program is free software; you can redistribute it and/or modify
	7	# it under the terms of the GNU General Public License as published by
	8	# the Free Software Foundation; either version 2 of the License, or
	9	# (at your option) any later version.
	10	#
	11	# This program is distributed in the hope that it will be useful,
	12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	# GNU General Public License for more details.
	15	#
	16	# You should have received a copy of the GNU General Public License along
	17	# with this program; if not, write to the Free Software Foundation, Inc.,
	18	# 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
	19	#
	20
	21	# This file is sourced from elf32.em, and defines extra spu specific
	22	# features.
	23	#
	24	cat >>e${EMULATION_NAME}.c <<EOF
	25	#include "ldctor.h"
	26	#include "elf32-spu.h"
	27
	28	/* Non-zero if no overlay processing should be done. */
	29	static int no_overlays = 0;
	30
	31	/* Non-zero if we want stubs on all calls out of overlay regions. */
	32	static int non_overlay_stubs = 0;
	33
	34	/* Whether to emit symbols for stubs. */
	35	static int emit_stub_syms = 0;
	36
49fa1e15 AM	37	/* Non-zero to perform stack space analysis. */
	38	static int stack_analysis = 0;
	39
	40	/* Whether to emit symbols with stack requirements for each function. */
	41	static int emit_stack_syms = 0;
	42
e9f53129 AM	43	/* Range of valid addresses for loadable sections. */
	44	static bfd_vma local_store_lo = 0;
	45	static bfd_vma local_store_hi = 0x3ffff;
	46
671ace2f AM	47	static const char ovl_mgr[] = {
	48	EOF
	49
	50	../binutils/bin2c < ${srcdir}/emultempl/spu_ovl.o >> e${EMULATION_NAME}.c
	51
	52	cat >>e${EMULATION_NAME}.c <<EOF
	53	};
e9f53129 AM	54
e9f53129 AM	55	static const struct _ovl_stream ovl_mgr_stream = {
671ace2f AM	56	ovl_mgr,
671ace2f AM	57	ovl_mgr + sizeof (ovl_mgr)
e9f53129 AM	58	};
	59
	60	static asection *toe = NULL;
	61
	62
	63	static int
	64	is_spu_target (void)
	65	{
	66	extern const bfd_target bfd_elf32_spu_vec;
	67
	68	return link_info.hash->creator == &bfd_elf32_spu_vec;
	69	}
	70
	71	/* Create our note section. */
	72
	73	static void
	74	spu_after_open (void)
	75	{
	76	if (is_spu_target ()
	77	&& !link_info.relocatable
	78	&& link_info.input_bfds != NULL
49fa1e15 AM	79	&& !spu_elf_create_sections (output_bfd, &link_info,
49fa1e15 AM	80	stack_analysis, emit_stack_syms))
e9f53129 AM	81	einfo ("%X%P: can not create note section: %E\n");
	82
	83	gld${EMULATION_NAME}_after_open ();
	84	}
	85
	86	/* Add section S at the end of output section OUTPUT_NAME.
	87
	88	Really, we should be duplicating ldlang.c map_input_to_output_sections
	89	logic here, ie. using the linker script to find where the section
	90	goes. That's rather a lot of code, and we don't want to run
	91	map_input_to_output_sections again because most sections are already
	92	mapped. So cheat, and put the section in a fixed place, ignoring any
	93	attempt via a linker script to put .stub, .ovtab, and built-in
	94	overlay manager code somewhere else. */
	95
	96	static void
	97	spu_place_special_section (asection s, const char output_name)
	98	{
	99	lang_output_section_statement_type *os;
	100
	101	os = lang_output_section_find (output_name);
	102	if (os == NULL)
	103	{
	104	const char *save = s->name;
	105	s->name = output_name;
	106	gld${EMULATION_NAME}_place_orphan (s);
	107	s->name = save;
	108	}
	109	else
	110	lang_add_section (&os->children, s, os);
	111
	112	s->output_section->size += s->size;
	113	}
	114
	115	/* Load built-in overlay manager, and tweak overlay section alignment. */
	116
	117	static void
	118	spu_elf_load_ovl_mgr (void)
	119	{
	120	lang_output_section_statement_type *os;
	121	struct elf_link_hash_entry *h;
	122
	123	h = elf_link_hash_lookup (elf_hash_table (&link_info),
	124	"__ovly_load", FALSE, FALSE, FALSE);
	125
	126	if (h != NULL
	127	&& (h->root.type == bfd_link_hash_defined
	128	\|\| h->root.type == bfd_link_hash_defweak)
	129	&& h->def_regular)
	130	{
	131	/* User supplied __ovly_load. */
	132	}
45d3b878 AM	133	else if (ovl_mgr_stream.start == ovl_mgr_stream.end)
45d3b878 AM	134	einfo ("%F%P: no built-in overlay manager\n");
e9f53129 AM	135	else
	136	{
	137	lang_input_statement_type *ovl_is;
	138
	139	ovl_is = lang_add_input_file ("builtin ovl_mgr",
	140	lang_input_file_is_file_enum,
	141	NULL);
	142
	143	if (!spu_elf_open_builtin_lib (&ovl_is->the_bfd, &ovl_mgr_stream))
	144	einfo ("%X%P: can not open built-in overlay manager: %E\n");
	145	else
	146	{
	147	asection *in;
	148
	149	if (!load_symbols (ovl_is, NULL))
	150	einfo ("%X%P: can not load built-in overlay manager: %E\n");
	151
	152	/* Map overlay manager sections to output sections. */
	153	for (in = ovl_is->the_bfd->sections; in != NULL; in = in->next)
	154	if ((in->flags & (SEC_ALLOC \| SEC_LOAD))
	155	== (SEC_ALLOC \| SEC_LOAD))
	156	spu_place_special_section (in, ".text");
	157	}
	158	}
	159
	160	/* Ensure alignment of overlay sections is sufficient. */
	161	for (os = &lang_output_section_statement.head->output_section_statement;
	162	os != NULL;
	163	os = os->next)
	164	if (os->bfd_section != NULL
	165	&& spu_elf_section_data (os->bfd_section) != NULL
	166	&& spu_elf_section_data (os->bfd_section)->ovl_index != 0)
	167	{
	168	if (os->bfd_section->alignment_power < 4)
	169	os->bfd_section->alignment_power = 4;
	170
	171	/* Also ensure size rounds up. */
	172	os->block_value = 16;
	173	}
	174	}
	175
	176	/* Go find if we need to do anything special for overlays. */
	177
	178	static void
	179	spu_before_allocation (void)
	180	{
	181	if (is_spu_target ()
	182	&& !link_info.relocatable
	183	&& !no_overlays)
	184	{
	185	/* Size the sections. This is premature, but we need to know the
	186	rough layout so that overlays can be found. */
	187	expld.phase = lang_mark_phase_enum;
	188	expld.dataseg.phase = exp_dataseg_none;
	189	one_lang_size_sections_pass (NULL, TRUE);
	190
	191	/* Find overlays by inspecting section vmas. */
	192	if (spu_elf_find_overlays (output_bfd, &link_info))
	193	{
	194	asection stub, ovtab;
	195
	196	if (!spu_elf_size_stubs (output_bfd, &link_info, non_overlay_stubs,
49fa1e15	197	stack_analysis, &stub, &ovtab, &toe))
e9f53129 AM	198	einfo ("%X%P: can not size overlay stubs: %E\n");
	199
	200	if (stub != NULL)
	201	{
	202	spu_place_special_section (stub, ".text");
	203	spu_place_special_section (ovtab, ".data");
	204	spu_place_special_section (toe, ".toe");
	205
	206	spu_elf_load_ovl_mgr ();
	207	}
	208	}
	209
	210	/* We must not cache anything from the preliminary sizing. */
	211	lang_reset_memory_regions ();
	212	}
	213
	214	gld${EMULATION_NAME}_before_allocation ();
	215	}
	216
	217	/* Final emulation specific call. */
	218
	219	static void
	220	gld${EMULATION_NAME}_finish (void)
	221	{
	222	int need_laying_out;
	223
	224	need_laying_out = bfd_elf_discard_info (output_bfd, &link_info);
	225
	226	gld${EMULATION_NAME}_map_segments (need_laying_out);
	227
	228	if (is_spu_target () && local_store_lo < local_store_hi)
	229	{
	230	asection *s;
	231
	232	s = spu_elf_check_vma (output_bfd, local_store_lo, local_store_hi);
	233	if (s != NULL)
	234	einfo ("%X%P: %A exceeds local store range\n", s);
	235	}
	236
	237	if (toe != NULL
	238	&& !spu_elf_build_stubs (&link_info,
	239	emit_stub_syms \|\| link_info.emitrelocations,
	240	toe))
	241	einfo ("%X%P: can not build overlay stubs: %E\n");
	242
	243	finish_default ();
	244	}
	245
	246	EOF
	247
dc27aea4 AM	248	if grep -q 'ld_elf.ppc._emulation' ldemul-list.h; then
	249	cat >>e${EMULATION_NAME}.c <<EOF
	250	#include "filenames.h"
	251	#include <fcntl.h>
	252	#include <sys/wait.h>
	253
	254	struct tflist {
	255	struct tflist *next;
	256	char name[9];
	257	};
	258
	259	static struct tflist *tmp_file_list;
	260
	261	static void clean_tmp (void)
	262	{
	263	for (; tmp_file_list != NULL; tmp_file_list = tmp_file_list->next)
	264	unlink (tmp_file_list->name);
	265	}
	266
	267	/* This function is called when building a ppc32 or ppc64 executable
	268	to handle embedded spu images. */
	269	extern bfd_boolean embedded_spu_file (lang_input_statement_type , const char );
	270
	271	bfd_boolean
	272	embedded_spu_file (lang_input_statement_type entry, const char flags)
	273	{
	274	const char *cmd[6];
	275	const char *sym;
	276	char handle, p;
	277	struct tflist *tf;
	278	char *oname;
	279	int fd;
	280	pid_t pid;
	281	int status;
	282	union lang_statement_union **old_stat_tail;
	283	union lang_statement_union **old_file_tail;
	284	union lang_statement_union *new_ent;
	285
	286	if (entry->the_bfd->format != bfd_object
	287	\|\| strcmp (entry->the_bfd->xvec->name, "elf32-spu") != 0
	288	\|\| (entry->the_bfd->tdata.elf_obj_data->elf_header->e_type != ET_EXEC
	289	&& entry->the_bfd->tdata.elf_obj_data->elf_header->e_type != ET_DYN))
	290	return FALSE;
	291
	292	/* Use the filename as the symbol marking the program handle struct. */
	293	sym = strrchr (entry->the_bfd->filename, '/');
	294	#ifdef HAVE_DOS_BASED_FILE_SYSTEM
	295	{
	296	char *bslash = strrchr (entry->the_bfd->filename, '\\');
	297
	298	if (sym == NULL \|\| (bslash != NULL && bslash > sym))
	299	sym = bslash;
	300	if (sym == NULL
	301	&& entry->the_bfd->filename[0] != '\0'
	302	&& entry->the_bfd->filename[1] == ':')
	303	sym = entry->the_bfd->filename + 1;
	304	}
	305	#endif
	306	if (sym == NULL)
	307	sym = entry->the_bfd->filename;
	308	else
	309	++sym;
	310
	311	handle = xstrdup (sym);
312	for (p = handle; *p; ++p)
313	if (!(ISALNUM (p) \|\| p == '$' \|\| *p == '.'))
314	*p = '_';
315
316	if (tmp_file_list == NULL)
317	atexit (clean_tmp);
318	tf = xmalloc (sizeof (*tf));
319	tf->next = tmp_file_list;
320	tmp_file_list = tf;
321	oname = tf->name;
322	memcpy (tf->name, "ldXXXXXX", sizeof (tf->name));
323
324	#ifdef HAVE_MKSTEMP
325	fd = mkstemp (oname);
326	#else
327	oname = mktemp (oname);
328	if (oname == NULL)
329	return FALSE;
330	fd = open (oname, O_RDWR \| O_CREAT \| O_EXCL, 0600);
331	#endif
332	if (fd == -1)
333	return FALSE;
334	close (fd);
335
336	/* Use fork() and exec() rather than system() so that we don't
337	need to worry about quoting args. */
338	cmd[0] = "embedspu";
339	cmd[1] = flags;
340	cmd[2] = handle;
341	cmd[3] = entry->the_bfd->filename;
342	cmd[4] = oname;
343	cmd[5] = NULL;
344	if (trace_file_tries)
345	{
346	info_msg (_("running: %s \"%s\" \"%s\" \"%s\" \"%s\"\n"),
347	cmd[0], cmd[1], cmd[2], cmd[3], cmd[4]);
348	fflush (stdout);
349	}
350
351	pid = fork ();
352	if (pid == -1)
353	return FALSE;
354	if (pid == 0)
355	{
356	execvp (cmd[0], (char const ) cmd);
357	perror (cmd[0]);
358	_exit (127);
359	}
360	#ifdef HAVE_WAITPID
361	#define WAITFOR(PID, STAT) waitpid (PID, STAT, 0)
362	#else
363	#define WAITFOR(PID, STAT) wait (STAT)
364	#endif
365	if (WAITFOR (pid, &status) != pid
366	\|\| !WIFEXITED (status)
367	\|\| WEXITSTATUS (status) != 0)
368	return FALSE;
369	#undef WAITFOR
370
371	old_stat_tail = stat_ptr->tail;
372	old_file_tail = input_file_chain.tail;
373	if (lang_add_input_file (oname, lang_input_file_is_file_enum, NULL) == NULL)
374	return FALSE;
375
376	/* lang_add_input_file put the new list entry at the end of the statement
377	and input file lists. Move it to just after the current entry. */
378	new_ent = *old_stat_tail;
379	*old_stat_tail = NULL;
380	stat_ptr->tail = old_stat_tail;
381	*old_file_tail = NULL;
382	input_file_chain.tail = old_file_tail;
383	new_ent->header.next = entry->header.next;
384	entry->header.next = new_ent;
385	new_ent->input_statement.next_real_file = entry->next_real_file;
386	entry->next_real_file = new_ent;
387
388	/* Ensure bfd sections are excluded from the output. */
389	bfd_section_list_clear (entry->the_bfd);
390	entry->loaded = TRUE;
391	return TRUE;
392	}
393
394	EOF
395	fi
396
e9f53129 AM	397	# Define some shell vars to insert bits of code into the standard elf
	398	# parse_args and list_options functions.
	399	#
	400	PARSE_AND_LIST_PROLOGUE='
	401	#define OPTION_SPU_PLUGIN 301
	402	#define OPTION_SPU_NO_OVERLAYS (OPTION_SPU_PLUGIN + 1)
	403	#define OPTION_SPU_STUB_SYMS (OPTION_SPU_NO_OVERLAYS + 1)
	404	#define OPTION_SPU_NON_OVERLAY_STUBS (OPTION_SPU_STUB_SYMS + 1)
	405	#define OPTION_SPU_LOCAL_STORE (OPTION_SPU_NON_OVERLAY_STUBS + 1)
49fa1e15 AM	406	#define OPTION_SPU_STACK_ANALYSIS (OPTION_SPU_LOCAL_STORE + 1)
49fa1e15 AM	407	#define OPTION_SPU_STACK_SYMS (OPTION_SPU_STACK_ANALYSIS + 1)
e9f53129 AM	408	'
	409
	410	PARSE_AND_LIST_LONGOPTS='
	411	{ "plugin", no_argument, NULL, OPTION_SPU_PLUGIN },
	412	{ "no-overlays", no_argument, NULL, OPTION_SPU_NO_OVERLAYS },
	413	{ "emit-stub-syms", no_argument, NULL, OPTION_SPU_STUB_SYMS },
	414	{ "extra-overlay-stubs", no_argument, NULL, OPTION_SPU_NON_OVERLAY_STUBS },
	415	{ "local-store", required_argument, NULL, OPTION_SPU_LOCAL_STORE },
49fa1e15 AM	416	{ "stack-analysis", no_argument, NULL, OPTION_SPU_STACK_ANALYSIS },
49fa1e15 AM	417	{ "emit-stack-syms", no_argument, NULL, OPTION_SPU_STACK_SYMS },
e9f53129 AM	418	'
	419
	420	PARSE_AND_LIST_OPTIONS='
	421	fprintf (file, _("\
	422	--plugin Make SPU plugin.\n\
	423	--no-overlays No overlay handling.\n\
	424	--emit-stub-syms Add symbols on overlay call stubs.\n\
	425	--extra-overlay-stubs Add stubs on all calls out of overlay regions.\n\
49fa1e15 AM	426	--local-store=lo:hi Valid address range.\n\
	427	--stack-analysis Estimate maximum stack requirement.\n\
	428	--emit-stack-syms Add __stack_func giving stack needed for each func.\n"
e9f53129 AM	429	));
	430	'
	431
	432	PARSE_AND_LIST_ARGS_CASES='
	433	case OPTION_SPU_PLUGIN:
	434	spu_elf_plugin (1);
	435	break;
	436
	437	case OPTION_SPU_NO_OVERLAYS:
	438	no_overlays = 1;
	439	break;
	440
	441	case OPTION_SPU_STUB_SYMS:
	442	emit_stub_syms = 1;
	443	break;
	444
	445	case OPTION_SPU_NON_OVERLAY_STUBS:
	446	non_overlay_stubs = 1;
	447	break;
	448
	449	case OPTION_SPU_LOCAL_STORE:
	450	{
	451	char *end;
	452	local_store_lo = strtoul (optarg, &end, 0);
	453	if (*end == '\'':'\'')
	454	{
	455	local_store_hi = strtoul (end + 1, &end, 0);
	456	if (*end == 0)
	457	break;
	458	}
	459	einfo (_("%P%F: invalid --local-store address range `%s'\''\n"), optarg);
	460	}
	461	break;
49fa1e15 AM	462
	463	case OPTION_SPU_STACK_ANALYSIS:
	464	stack_analysis = 1;
	465	break;
	466
	467	case OPTION_SPU_STACK_SYMS:
	468	emit_stack_syms = 1;
	469	break;
e9f53129 AM	470	'
	471
	472	LDEMUL_AFTER_OPEN=spu_after_open
	473	LDEMUL_BEFORE_ALLOCATION=spu_before_allocation
	474	LDEMUL_FINISH=gld${EMULATION_NAME}_finish