# This shell script emits a C file. -*- C -*-
-# Copyright 2006, 2007 Free Software Foundation, Inc.
+# Copyright 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
#
# This file is part of the GNU Binutils.
#
#include "ldctor.h"
#include "elf32-spu.h"
-/* Non-zero if no overlay processing should be done. */
-static int no_overlays = 0;
+static void spu_place_special_section (asection *, asection *, const char *);
+static bfd_size_type spu_elf_load_ovl_mgr (void);
+static FILE *spu_elf_open_overlay_script (void);
+static void spu_elf_relink (void);
-/* Non-zero if we want stubs on all calls out of overlay regions. */
-static int non_overlay_stubs = 0;
+static struct spu_elf_params params =
+{
+ &spu_place_special_section,
+ &spu_elf_load_ovl_mgr,
+ &spu_elf_open_overlay_script,
+ &spu_elf_relink,
+ 0, ovly_normal, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0x3ffff,
+ 1, 0, 16, 0, 0, 2000
+};
-/* Whether to emit symbols for stubs. */
-static int emit_stub_syms = 0;
+static unsigned int no_overlays = 0;
+static unsigned int num_lines_set = 0;
+static unsigned int line_size_set = 0;
+static char *auto_overlay_file = 0;
+int my_argc;
+char **my_argv;
-/* Non-zero to perform stack space analysis. */
-static int stack_analysis = 0;
+static const char ovl_mgr[] = {
+EOF
-/* Whether to emit symbols with stack requirements for each function. */
-static int emit_stack_syms = 0;
+if ! cat ${srcdir}/emultempl/spu_ovl.o_c >> e${EMULATION_NAME}.c
+then
+ echo >&2 "Missing ${srcdir}/emultempl/spu_ovl.o_c"
+ echo >&2 "You must build gas/as-new with --target=spu"
+ exit 1
+fi
-/* Range of valid addresses for loadable sections. */
-static bfd_vma local_store_lo = 0;
-static bfd_vma local_store_hi = 0x3ffff;
+fragment <<EOF
+};
-static const char ovl_mgr[] = {
+static const char icache_mgr[] = {
EOF
-../binutils/bin2c < ${srcdir}/emultempl/spu_ovl.o >> e${EMULATION_NAME}.c
+if ! cat ${srcdir}/emultempl/spu_icache.o_c >> e${EMULATION_NAME}.c
+then
+ echo >&2 "Missing ${srcdir}/emultempl/spu_icache.o_c"
+ echo >&2 "You must build gas/as-new with --target=spu"
+ exit 1
+fi
fragment <<EOF
};
ovl_mgr + sizeof (ovl_mgr)
};
-static asection *toe = NULL;
+static const struct _ovl_stream icache_mgr_stream = {
+ icache_mgr,
+ icache_mgr + sizeof (icache_mgr)
+};
static int
{
extern const bfd_target bfd_elf32_spu_vec;
- return link_info.hash->creator == &bfd_elf32_spu_vec;
+ return link_info.output_bfd->xvec == &bfd_elf32_spu_vec;
}
/* Create our note section. */
static void
spu_after_open (void)
{
- if (is_spu_target ()
- && !link_info.relocatable
- && link_info.input_bfds != NULL
- && !spu_elf_create_sections (output_bfd, &link_info,
- stack_analysis, emit_stack_syms))
- einfo ("%X%P: can not create note section: %E\n");
+ if (is_spu_target ())
+ {
+ /* Pass params to backend. */
+ if ((params.auto_overlay & AUTO_OVERLAY) == 0)
+ params.auto_overlay = 0;
+ params.emit_stub_syms |= link_info.emitrelocations;
+ spu_elf_setup (&link_info, ¶ms);
+
+ if (link_info.relocatable)
+ lang_add_unique (".text.ia.*");
+
+ if (!link_info.relocatable
+ && link_info.input_bfds != NULL
+ && !spu_elf_create_sections (&link_info))
+ einfo ("%X%P: can not create note section: %E\n");
+ }
gld${EMULATION_NAME}_after_open ();
}
-/* Add section S at the end of output section OUTPUT_NAME.
+/* If O is NULL, add section S at the end of output section OUTPUT_NAME.
+ If O is not NULL, add section S at the beginning of output section O,
+ except for soft-icache which adds to the end.
Really, we should be duplicating ldlang.c map_input_to_output_sections
logic here, ie. using the linker script to find where the section
overlay manager code somewhere else. */
static void
-spu_place_special_section (asection *s, const char *output_name)
+spu_place_special_section (asection *s, asection *o, const char *output_name)
{
lang_output_section_statement_type *os;
+ if (o != NULL)
+ output_name = o->name;
os = lang_output_section_find (output_name);
if (os == NULL)
{
- const char *save = s->name;
- s->name = output_name;
- gld${EMULATION_NAME}_place_orphan (s);
- s->name = save;
+ os = gld${EMULATION_NAME}_place_orphan (s, output_name, 0);
+ os->addr_tree = NULL;
+ }
+ else if (params.ovly_flavour != ovly_soft_icache
+ && o != NULL && os->children.head != NULL)
+ {
+ lang_statement_list_type add;
+
+ lang_list_init (&add);
+ lang_add_section (&add, s, os);
+ *add.tail = os->children.head;
+ os->children.head = add.head;
}
else
- lang_add_section (&os->children, s, os);
+ {
+ if (params.ovly_flavour == ovly_soft_icache && o != NULL)
+ {
+ /* Pad this stub section so that it finishes at the
+ end of the icache line. */
+ etree_type *e_size;
+
+ push_stat_ptr (&os->children);
+ e_size = exp_intop (params.line_size - s->size);
+ lang_add_assignment (exp_assop ('=', ".", e_size));
+ pop_stat_ptr ();
+ }
+ lang_add_section (&os->children, s, os);
+ }
s->output_section->size += s->size;
}
-/* Load built-in overlay manager, and tweak overlay section alignment. */
+/* Load built-in overlay manager. */
-static void
+static bfd_size_type
spu_elf_load_ovl_mgr (void)
{
- lang_output_section_statement_type *os;
struct elf_link_hash_entry *h;
+ const char *ovly_mgr_entry;
+ const struct _ovl_stream *mgr_stream;
+ bfd_size_type total = 0;
+ ovly_mgr_entry = "__ovly_load";
+ mgr_stream = &ovl_mgr_stream;
+ if (params.ovly_flavour == ovly_soft_icache)
+ {
+ ovly_mgr_entry = "__icache_br_handler";
+ mgr_stream = &icache_mgr_stream;
+ }
h = elf_link_hash_lookup (elf_hash_table (&link_info),
- "__ovly_load", FALSE, FALSE, FALSE);
+ ovly_mgr_entry, FALSE, FALSE, FALSE);
if (h != NULL
&& (h->root.type == bfd_link_hash_defined
{
/* User supplied __ovly_load. */
}
- else if (ovl_mgr_stream.start == ovl_mgr_stream.end)
+ else if (mgr_stream->start == mgr_stream->end)
einfo ("%F%P: no built-in overlay manager\n");
else
{
lang_input_file_is_file_enum,
NULL);
- if (!spu_elf_open_builtin_lib (&ovl_is->the_bfd, &ovl_mgr_stream))
+ if (!spu_elf_open_builtin_lib (&ovl_is->the_bfd, mgr_stream))
einfo ("%X%P: can not open built-in overlay manager: %E\n");
else
{
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. */
+ /* Map overlay manager sections to output sections.
+ First try for a matching output section name, if that
+ fails then try mapping .abc.xyz to .abc, otherwise map
+ to .text. */
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");
+ {
+ const char *oname = in->name;
+ if (strncmp (in->name, ".ovl.init", 9) != 0)
+ {
+ total += in->size;
+ if (!lang_output_section_find (oname))
+ {
+ lang_output_section_statement_type *os = NULL;
+ char *p = strchr (oname + 1, '.');
+ if (p != NULL)
+ {
+ size_t len = p - oname;
+ p = memcpy (xmalloc (len + 1), oname, len);
+ p[len] = '\0';
+ os = lang_output_section_find (p);
+ free (p);
+ }
+ if (os != NULL)
+ oname = os->name;
+ else
+ oname = ".text";
+ }
+ }
+
+ spu_place_special_section (in, NULL, oname);
+ }
}
}
-
- /* 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;
- }
+ return total;
}
/* Go find if we need to do anything special for overlays. */
&& !link_info.relocatable
&& !no_overlays)
{
+ int ret;
+
/* 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;
one_lang_size_sections_pass (NULL, TRUE);
/* Find overlays by inspecting section vmas. */
- if (spu_elf_find_overlays (output_bfd, &link_info))
+ ret = spu_elf_find_overlays (&link_info);
+ if (ret == 0)
+ einfo ("%X%P: can not find overlays: %E\n");
+ else if (ret == 2)
{
- 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");
+ lang_output_section_statement_type *os;
- if (stub != NULL)
+ if (params.auto_overlay != 0)
{
- spu_place_special_section (stub, ".text");
- spu_place_special_section (ovtab, ".data");
- spu_place_special_section (toe, ".toe");
-
- spu_elf_load_ovl_mgr ();
+ einfo ("%P: --auto-overlay ignored with user overlay script\n");
+ params.auto_overlay = 0;
}
+
+ /* 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)->u.o.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;
+ }
+
+ ret = spu_elf_size_stubs (&link_info);
+ if (ret == 0)
+ einfo ("%X%P: can not size overlay stubs: %E\n");
+ else if (ret == 2)
+ spu_elf_load_ovl_mgr ();
+
+ spu_elf_place_overlay_data (&link_info);
}
/* We must not cache anything from the preliminary sizing. */
lang_reset_memory_regions ();
}
+ if (is_spu_target ()
+ && !link_info.relocatable)
+ spu_elf_size_sections (link_info.output_bfd, &link_info);
+
gld${EMULATION_NAME}_before_allocation ();
}
-/* Final emulation specific call. */
+struct tflist {
+ struct tflist *next;
+ char name[9];
+};
-static void
-gld${EMULATION_NAME}_finish (void)
+static struct tflist *tmp_file_list;
+
+static void clean_tmp (void)
{
- int need_laying_out;
+ for (; tmp_file_list != NULL; tmp_file_list = tmp_file_list->next)
+ unlink (tmp_file_list->name);
+}
- need_laying_out = bfd_elf_discard_info (output_bfd, &link_info);
+static int
+new_tmp_file (char **fname)
+{
+ struct tflist *tf;
+ int fd;
- gld${EMULATION_NAME}_map_segments (need_laying_out);
+ if (tmp_file_list == NULL)
+ atexit (clean_tmp);
+ tf = xmalloc (sizeof (*tf));
+ tf->next = tmp_file_list;
+ tmp_file_list = tf;
+ memcpy (tf->name, "ldXXXXXX", sizeof (tf->name));
+ *fname = tf->name;
+#ifdef HAVE_MKSTEMP
+ fd = mkstemp (*fname);
+#else
+ *fname = mktemp (*fname);
+ if (*fname == NULL)
+ return -1;
+ fd = open (fname, O_RDWR | O_CREAT | O_EXCL, 0600);
+#endif
+ return fd;
+}
- if (is_spu_target () && local_store_lo < local_store_hi)
+static FILE *
+spu_elf_open_overlay_script (void)
+{
+ FILE *script = NULL;
+
+ if (auto_overlay_file == NULL)
{
- asection *s;
+ int fd = new_tmp_file (&auto_overlay_file);
+ if (fd == -1)
+ goto file_err;
+ script = fdopen (fd, "w");
+ }
+ else
+ script = fopen (auto_overlay_file, "w");
- s = spu_elf_check_vma (output_bfd, local_store_lo, local_store_hi);
- if (s != NULL)
- einfo ("%X%P: %A exceeds local store range\n", s);
+ if (script == NULL)
+ {
+ file_err:
+ einfo ("%F%P: can not open script: %E\n");
}
+ return script;
+}
+
+static void
+spu_elf_relink (void)
+{
+ char **argv = xmalloc ((my_argc + 4) * sizeof (*argv));
+
+ memcpy (argv, my_argv, my_argc * sizeof (*argv));
+ argv[my_argc++] = "--no-auto-overlay";
+ if (tmp_file_list->name == auto_overlay_file)
+ argv[my_argc - 1] = concat (argv[my_argc - 1], "=",
+ auto_overlay_file, (const char *) NULL);
+ argv[my_argc++] = "-T";
+ argv[my_argc++] = auto_overlay_file;
+ argv[my_argc] = 0;
+ execvp (argv[0], (char *const *) argv);
+ perror (argv[0]);
+ _exit (127);
+}
+
+/* Final emulation specific call. */
+
+static void
+gld${EMULATION_NAME}_finish (void)
+{
+ if (is_spu_target ())
+ {
+ if (params.local_store_lo < params.local_store_hi)
+ {
+ asection *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");
+ s = spu_elf_check_vma (&link_info);
+ if (s != NULL && !params.auto_overlay)
+ einfo ("%X%P: %A exceeds local store range\n", s);
+ }
+ else if (params.auto_overlay)
+ einfo ("%P: --auto-overlay ignored with zero local store range\n");
+ }
finish_default ();
}
+static char *
+gld${EMULATION_NAME}_choose_target (int argc, char *argv[])
+{
+ my_argc = argc;
+ my_argv = argv;
+ return ldemul_default_target (argc, argv);
+}
+
EOF
if grep -q 'ld_elf.*ppc.*_emulation' ldemul-list.h; then
fragment <<EOF
+#include <errno.h>
#include "filenames.h"
-#include <fcntl.h>
-#include <sys/wait.h>
-
-struct tflist {
- struct tflist *next;
- char name[9];
-};
-
-static struct tflist *tmp_file_list;
-
-static void clean_tmp (void)
-{
- for (; tmp_file_list != NULL; tmp_file_list = tmp_file_list->next)
- unlink (tmp_file_list->name);
-}
+#include "libiberty.h"
static const char *
base_name (const char *path)
embedded_spu_file (lang_input_statement_type *entry, const char *flags)
{
const char *cmd[6];
+ const char *pex_return;
const char *sym;
char *handle, *p;
- struct tflist *tf;
char *oname;
int fd;
- pid_t pid;
int status;
union lang_statement_union **old_stat_tail;
union lang_statement_union **old_file_tail;
if (!(ISALNUM (*p) || *p == '$' || *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
+ fd = new_tmp_file (&oname);
if (fd == -1)
return FALSE;
close (fd);
if (strncmp (infile, "crtbegin", 8) == 0)
{
if (infile[8] == 'S')
- flags = concat (flags, " -fPIC", NULL);
+ flags = concat (flags, " -fPIC", (const char *) NULL);
else if (infile[8] == 'T')
- flags = concat (flags, " -fpie", NULL);
+ flags = concat (flags, " -fpie", (const char *) NULL);
break;
}
}
- /* 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;
fflush (stdout);
}
- pid = fork ();
- if (pid == -1)
- return FALSE;
- if (pid == 0)
- {
- execvp (cmd[0], (char *const *) cmd);
+ pex_return = pex_one (PEX_SEARCH | PEX_LAST, cmd[0], (char *const *) cmd,
+ cmd[0], NULL, NULL, &status, &errno);
+ if (NULL != pex_return) {
if (strcmp ("embedspu", EMBEDSPU) != 0)
{
cmd[0] = "embedspu";
- execvp (cmd[0], (char *const *) cmd);
+ pex_return = pex_one (PEX_SEARCH | PEX_LAST, cmd[0], (char *const *) cmd,
+ cmd[0], NULL, NULL, &status, &errno);
}
- 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)
+ if (NULL != pex_return) {
+ perror (pex_return);
+ _exit (127);
+ }
+ }
+ if (status)
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
+ /* lang_add_input_file puts 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;
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_COMPACT_STUBS (OPTION_SPU_NO_OVERLAYS + 1)
+#define OPTION_SPU_STUB_SYMS (OPTION_SPU_COMPACT_STUBS + 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)
+#define OPTION_SPU_AUTO_OVERLAY (OPTION_SPU_STACK_SYMS + 1)
+#define OPTION_SPU_AUTO_RELINK (OPTION_SPU_AUTO_OVERLAY + 1)
+#define OPTION_SPU_OVERLAY_RODATA (OPTION_SPU_AUTO_RELINK + 1)
+#define OPTION_SPU_SOFT_ICACHE (OPTION_SPU_OVERLAY_RODATA + 1)
+#define OPTION_SPU_LINE_SIZE (OPTION_SPU_SOFT_ICACHE + 1)
+#define OPTION_SPU_NUM_LINES (OPTION_SPU_LINE_SIZE + 1)
+#define OPTION_SPU_LRLIVE (OPTION_SPU_NUM_LINES + 1)
+#define OPTION_SPU_NON_IA_TEXT (OPTION_SPU_LRLIVE + 1)
+#define OPTION_SPU_FIXED_SPACE (OPTION_SPU_NON_IA_TEXT + 1)
+#define OPTION_SPU_RESERVED_SPACE (OPTION_SPU_FIXED_SPACE + 1)
+#define OPTION_SPU_EXTRA_STACK (OPTION_SPU_RESERVED_SPACE + 1)
+#define OPTION_SPU_NO_AUTO_OVERLAY (OPTION_SPU_EXTRA_STACK + 1)
+#define OPTION_SPU_EMIT_FIXUPS (OPTION_SPU_NO_AUTO_OVERLAY + 1)
'
PARSE_AND_LIST_LONGOPTS='
{ "plugin", no_argument, NULL, OPTION_SPU_PLUGIN },
+ { "soft-icache", no_argument, NULL, OPTION_SPU_SOFT_ICACHE },
+ { "lrlive-analysis", no_argument, NULL, OPTION_SPU_LRLIVE },
+ { "num-lines", required_argument, NULL, OPTION_SPU_NUM_LINES },
+ { "line-size", required_argument, NULL, OPTION_SPU_LINE_SIZE },
+ { "non-ia-text", no_argument, NULL, OPTION_SPU_NON_IA_TEXT },
{ "no-overlays", no_argument, NULL, OPTION_SPU_NO_OVERLAYS },
+ { "compact-stubs", no_argument, NULL, OPTION_SPU_COMPACT_STUBS },
{ "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 },
+ { "auto-overlay", optional_argument, NULL, OPTION_SPU_AUTO_OVERLAY },
+ { "auto-relink", no_argument, NULL, OPTION_SPU_AUTO_RELINK },
+ { "overlay-rodata", no_argument, NULL, OPTION_SPU_OVERLAY_RODATA },
+ { "num-regions", required_argument, NULL, OPTION_SPU_NUM_LINES },
+ { "region-size", required_argument, NULL, OPTION_SPU_LINE_SIZE },
+ { "fixed-space", required_argument, NULL, OPTION_SPU_FIXED_SPACE },
+ { "reserved-space", required_argument, NULL, OPTION_SPU_RESERVED_SPACE },
+ { "extra-stack-space", required_argument, NULL, OPTION_SPU_EXTRA_STACK },
+ { "no-auto-overlay", optional_argument, NULL, OPTION_SPU_NO_AUTO_OVERLAY },
+ { "emit-fixups", optional_argument, NULL, OPTION_SPU_EMIT_FIXUPS },
'
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"
+ --plugin Make SPU plugin.\n\
+ --no-overlays No overlay handling.\n\
+ --compact-stubs Use smaller and possibly slower call stubs.\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 sym giving stack needed for each func.\n\
+ --auto-overlay [=filename] Create an overlay script in filename if\n\
+ executable does not fit in local store.\n\
+ --auto-relink Rerun linker using auto-overlay script.\n\
+ --overlay-rodata Place read-only data with associated function\n\
+ code in overlays.\n\
+ --num-regions Number of overlay buffers (default 1).\n\
+ --region-size Size of overlay buffers (default 0, auto).\n\
+ --fixed-space=bytes Local store for non-overlay code and data.\n\
+ --reserved-space=bytes Local store for stack and heap. If not specified\n\
+ ld will estimate stack size and assume no heap.\n\
+ --extra-stack-space=bytes Space for negative sp access (default 2000) if\n\
+ --reserved-space not given.\n\
+ --soft-icache Generate software icache overlays.\n\
+ --num-lines Number of soft-icache lines (default 32).\n\
+ --line-size Size of soft-icache lines (default 1k).\n\
+ --non-ia-text Allow non-icache code in icache lines.\n\
+ --lrlive-analysis Scan function prologue for lr liveness.\n"
));
'
no_overlays = 1;
break;
+ case OPTION_SPU_COMPACT_STUBS:
+ params.compact_stub = 1;
+ break;
+
case OPTION_SPU_STUB_SYMS:
- emit_stub_syms = 1;
+ params.emit_stub_syms = 1;
break;
case OPTION_SPU_NON_OVERLAY_STUBS:
- non_overlay_stubs = 1;
+ params.non_overlay_stubs = 1;
break;
case OPTION_SPU_LOCAL_STORE:
{
char *end;
- local_store_lo = strtoul (optarg, &end, 0);
+ params.local_store_lo = strtoul (optarg, &end, 0);
if (*end == '\'':'\'')
{
- local_store_hi = strtoul (end + 1, &end, 0);
+ params.local_store_hi = strtoul (end + 1, &end, 0);
if (*end == 0)
break;
}
break;
case OPTION_SPU_STACK_ANALYSIS:
- stack_analysis = 1;
+ params.stack_analysis = 1;
break;
case OPTION_SPU_STACK_SYMS:
- emit_stack_syms = 1;
+ params.emit_stack_syms = 1;
+ break;
+
+ case OPTION_SPU_AUTO_OVERLAY:
+ params.auto_overlay |= 1;
+ if (optarg != NULL)
+ {
+ auto_overlay_file = optarg;
+ break;
+ }
+ /* Fall thru */
+
+ case OPTION_SPU_AUTO_RELINK:
+ params.auto_overlay |= 2;
+ break;
+
+ case OPTION_SPU_OVERLAY_RODATA:
+ params.auto_overlay |= 4;
+ break;
+
+ case OPTION_SPU_SOFT_ICACHE:
+ params.ovly_flavour = ovly_soft_icache;
+ /* Software i-cache stubs are always "compact". */
+ params.compact_stub = 1;
+ if (!num_lines_set)
+ params.num_lines = 32;
+ else if ((params.num_lines & -params.num_lines) != params.num_lines)
+ einfo (_("%P%F: invalid --num-lines/--num-regions `%u'\''\n"),
+ params.num_lines);
+ if (!line_size_set)
+ params.line_size = 1024;
+ else if ((params.line_size & -params.line_size) != params.line_size)
+ einfo (_("%P%F: invalid --line-size/--region-size `%u'\''\n"),
+ params.line_size);
+ break;
+
+ case OPTION_SPU_LRLIVE:
+ params.lrlive_analysis = 1;
+ break;
+
+ case OPTION_SPU_NON_IA_TEXT:
+ params.non_ia_text = 1;
+ break;
+
+ case OPTION_SPU_NUM_LINES:
+ {
+ char *end;
+ params.num_lines = strtoul (optarg, &end, 0);
+ num_lines_set = 1;
+ if (*end == 0
+ && (params.ovly_flavour != ovly_soft_icache
+ || (params.num_lines & -params.num_lines) == params.num_lines))
+ break;
+ einfo (_("%P%F: invalid --num-lines/--num-regions `%s'\''\n"), optarg);
+ }
+ break;
+
+ case OPTION_SPU_LINE_SIZE:
+ {
+ char *end;
+ params.line_size = strtoul (optarg, &end, 0);
+ line_size_set = 1;
+ if (*end == 0
+ && (params.ovly_flavour != ovly_soft_icache
+ || (params.line_size & -params.line_size) == params.line_size))
+ break;
+ einfo (_("%P%F: invalid --line-size/--region-size `%s'\''\n"), optarg);
+ }
+ break;
+
+ case OPTION_SPU_FIXED_SPACE:
+ {
+ char *end;
+ params.auto_overlay_fixed = strtoul (optarg, &end, 0);
+ if (*end != 0)
+ einfo (_("%P%F: invalid --fixed-space value `%s'\''\n"), optarg);
+ }
+ break;
+
+ case OPTION_SPU_RESERVED_SPACE:
+ {
+ char *end;
+ params.auto_overlay_reserved = strtoul (optarg, &end, 0);
+ if (*end != 0)
+ einfo (_("%P%F: invalid --reserved-space value `%s'\''\n"), optarg);
+ }
+ break;
+
+ case OPTION_SPU_EXTRA_STACK:
+ {
+ char *end;
+ params.extra_stack_space = strtol (optarg, &end, 0);
+ if (*end != 0)
+ einfo (_("%P%F: invalid --extra-stack-space value `%s'\''\n"), optarg);
+ }
+ break;
+
+ case OPTION_SPU_NO_AUTO_OVERLAY:
+ params.auto_overlay = 0;
+ if (optarg != NULL)
+ {
+ struct tflist *tf;
+ size_t len;
+
+ if (tmp_file_list == NULL)
+ atexit (clean_tmp);
+
+ len = strlen (optarg) + 1;
+ tf = xmalloc (sizeof (*tf) - sizeof (tf->name) + len);
+ memcpy (tf->name, optarg, len);
+ tf->next = tmp_file_list;
+ tmp_file_list = tf;
+ break;
+ }
+ break;
+
+ case OPTION_SPU_EMIT_FIXUPS:
+ params.emit_fixups = 1;
break;
'
LDEMUL_AFTER_OPEN=spu_after_open
LDEMUL_BEFORE_ALLOCATION=spu_before_allocation
LDEMUL_FINISH=gld${EMULATION_NAME}_finish
+LDEMUL_CHOOSE_TARGET=gld${EMULATION_NAME}_choose_target
projects / msp430-binutils.git / blobdiff