# This shell script emits a C file. -*- C -*-
-# Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+# Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
# Free Software Foundation, Inc.
#
# This file is part of the GNU Binutils.
/* Whether to sort input toc and got sections. */
static int no_toc_sort = 0;
+/* Set if PLT call stubs should load r11. */
+static int plt_static_chain = ${DEFAULT_PLT_STATIC_CHAIN-0};
+
+/* Set if PLT call stubs need to be thread safe on power7+. */
+static int plt_thread_safe = -1;
+
+/* Set if individual PLT call stubs should be aligned. */
+static int plt_stub_align = 0;
+
/* Whether to emit symbols for stubs. */
static int emit_stub_syms = -1;
bfd_get_arch (link_info.output_bfd),
bfd_get_mach (link_info.output_bfd)))
{
- einfo ("%F%P: can not create BFD %E\n");
+ einfo ("%F%P: can not create BFD: %E\n");
return;
}
{
if (!no_opd_opt
&& !ppc64_elf_edit_opd (&link_info, non_overlapping_opd))
- einfo ("%X%P: can not edit %s %E\n", "opd");
+ einfo ("%X%P: can not edit %s: %E\n", "opd");
if (ppc64_elf_tls_setup (&link_info, no_tls_get_addr_opt, &no_multi_toc)
&& !no_tls_opt)
prelim_size_sections ();
if (!ppc64_elf_edit_toc (&link_info))
- einfo ("%X%P: can not edit %s %E\n", "toc");
+ einfo ("%X%P: can not edit %s: %E\n", "toc");
}
if (!no_toc_sort)
| SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_KEEP);
stub_sec = bfd_make_section_anyway_with_flags (stub_file->the_bfd,
stub_sec_name, flags);
- if (stub_sec == NULL)
+ if (stub_sec == NULL
+ || !bfd_set_section_alignment (stub_file->the_bfd, stub_sec,
+ plt_stub_align > 5 ? plt_stub_align : 5))
goto err_ret;
output_section = input_section->output_section;
info.input_section = input_section;
lang_list_init (&info.add);
- lang_add_section (&info.add, stub_sec, os);
+ lang_add_section (&info.add, stub_sec, NULL, os);
if (info.add.head == NULL)
goto err_ret;
{
asection *i = statement->input_section.section;
- if (!((lang_input_statement_type *) i->owner->usrdata)->just_syms_flag
+ if (i->sec_info_type != SEC_INFO_TYPE_JUST_SYMS
&& (i->flags & SEC_EXCLUDE) == 0
&& i->output_section == toc_section)
{
{
asection *i = statement->input_section.section;
- if (!((lang_input_statement_type *) i->owner->usrdata)->just_syms_flag
+ if (!((lang_input_statement_type *) i->owner->usrdata)->flags.just_syms
&& (i->flags & SEC_EXCLUDE) == 0
&& i->output_section != NULL
&& i->output_section->owner == link_info.output_bfd)
einfo ("%P: .init/.fini fragments use differing TOC pointers\n");
/* Call into the BFD backend to do the real work. */
- if (!ppc64_elf_size_stubs (&link_info, group_size))
+ if (!ppc64_elf_size_stubs (&link_info, group_size,
+ plt_static_chain, plt_thread_safe,
+ plt_stub_align))
einfo ("%X%P: can not size stub section: %E\n");
}
}
descriptor in the .opd section. */
entry_section = ".opd";
- if (link_info.relocatable)
- {
- asection *toc = bfd_get_section_by_name (link_info.output_bfd, ".toc");
- if (toc != NULL
- && bfd_section_size (link_info.output_bfd, toc) > 0x10000)
- einfo ("%X%P: TOC section size exceeds 64k\n");
- }
-
if (stub_added)
{
char *msg = NULL;
config.stats ? &msg : NULL))
einfo ("%X%P: can not build stubs: %E\n");
+ fflush (stdout);
for (line = msg; line != NULL; line = endline)
{
endline = strchr (line, '\n');
*endline++ = '\0';
fprintf (stderr, "%s: %s\n", program_name, line);
}
+ fflush (stderr);
if (msg != NULL)
free (msg);
}
dot_pat[0] = '.';
memcpy (dot_pat + 1, entry->pattern, len - 1);
dot_entry->pattern = dot_pat;
+ dot_entry->script = 1;
return dot_entry;
}
# 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_STUBGROUP_SIZE 301
-#define OPTION_STUBSYMS (OPTION_STUBGROUP_SIZE + 1)
+PARSE_AND_LIST_PROLOGUE=${PARSE_AND_LIST_PROLOGUE}'
+#define OPTION_STUBGROUP_SIZE 321
+#define OPTION_PLT_STATIC_CHAIN (OPTION_STUBGROUP_SIZE + 1)
+#define OPTION_NO_PLT_STATIC_CHAIN (OPTION_PLT_STATIC_CHAIN + 1)
+#define OPTION_PLT_THREAD_SAFE (OPTION_NO_PLT_STATIC_CHAIN + 1)
+#define OPTION_NO_PLT_THREAD_SAFE (OPTION_PLT_THREAD_SAFE + 1)
+#define OPTION_PLT_ALIGN (OPTION_NO_PLT_THREAD_SAFE + 1)
+#define OPTION_NO_PLT_ALIGN (OPTION_PLT_ALIGN + 1)
+#define OPTION_STUBSYMS (OPTION_NO_PLT_ALIGN + 1)
#define OPTION_NO_STUBSYMS (OPTION_STUBSYMS + 1)
#define OPTION_DOTSYMS (OPTION_NO_STUBSYMS + 1)
#define OPTION_NO_DOTSYMS (OPTION_DOTSYMS + 1)
#define OPTION_NON_OVERLAPPING_OPD (OPTION_NO_TOC_SORT + 1)
'
-PARSE_AND_LIST_LONGOPTS='
+PARSE_AND_LIST_LONGOPTS=${PARSE_AND_LIST_LONGOPTS}'
{ "stub-group-size", required_argument, NULL, OPTION_STUBGROUP_SIZE },
+ { "plt-static-chain", no_argument, NULL, OPTION_PLT_STATIC_CHAIN },
+ { "no-plt-static-chain", no_argument, NULL, OPTION_NO_PLT_STATIC_CHAIN },
+ { "plt-thread-safe", no_argument, NULL, OPTION_PLT_THREAD_SAFE },
+ { "no-plt-thread-safe", no_argument, NULL, OPTION_NO_PLT_THREAD_SAFE },
+ { "plt-align", optional_argument, NULL, OPTION_PLT_ALIGN },
+ { "no-plt-align", no_argument, NULL, OPTION_NO_PLT_ALIGN },
{ "emit-stub-syms", no_argument, NULL, OPTION_STUBSYMS },
{ "no-emit-stub-syms", no_argument, NULL, OPTION_NO_STUBSYMS },
{ "dotsyms", no_argument, NULL, OPTION_DOTSYMS },
{ "non-overlapping-opd", no_argument, NULL, OPTION_NON_OVERLAPPING_OPD },
'
-PARSE_AND_LIST_OPTIONS='
+PARSE_AND_LIST_OPTIONS=${PARSE_AND_LIST_OPTIONS}'
fprintf (file, _("\
--stub-group-size=N Maximum size of a group of input sections that\n\
can be handled by one stub section. A negative\n\
choose suitable defaults.\n"
));
fprintf (file, _("\
+ --plt-static-chain PLT call stubs should load r11.${DEFAULT_PLT_STATIC_CHAIN- (default)}\n"
+ ));
+ fprintf (file, _("\
+ --no-plt-static-chain PLT call stubs should not load r11.${DEFAULT_PLT_STATIC_CHAIN+ (default)}\n"
+ ));
+ fprintf (file, _("\
+ --plt-thread-safe PLT call stubs with load-load barrier.\n"
+ ));
+ fprintf (file, _("\
+ --no-plt-thread-safe PLT call stubs without barrier.\n"
+ ));
+ fprintf (file, _("\
+ --plt-align [=<align>] Align PLT call stubs to fit cache lines.\n"
+ ));
+ fprintf (file, _("\
+ --no-plt-align Dont'\''t align individual PLT call stubs.\n"
+ ));
+ fprintf (file, _("\
--emit-stub-syms Label linker stubs with a symbol.\n"
));
fprintf (file, _("\
));
'
-PARSE_AND_LIST_ARGS_CASES='
+PARSE_AND_LIST_ARGS_CASES=${PARSE_AND_LIST_ARGS_CASES}'
case OPTION_STUBGROUP_SIZE:
{
const char *end;
}
break;
+ case OPTION_PLT_STATIC_CHAIN:
+ plt_static_chain = 1;
+ break;
+
+ case OPTION_NO_PLT_STATIC_CHAIN:
+ plt_static_chain = 0;
+ break;
+
+ case OPTION_PLT_THREAD_SAFE:
+ plt_thread_safe = 1;
+ break;
+
+ case OPTION_NO_PLT_THREAD_SAFE:
+ plt_thread_safe = 0;
+ break;
+
+ case OPTION_PLT_ALIGN:
+ if (optarg != NULL)
+ {
+ char *end;
+ unsigned long val = strtoul (optarg, &end, 0);
+ if (*end || val > 8)
+ einfo (_("%P%F: invalid --plt-align `%s'\''\n"), optarg);
+ plt_stub_align = val;
+ }
+ else
+ plt_stub_align = 5;
+ break;
+
+ case OPTION_NO_PLT_ALIGN:
+ plt_stub_align = 0;
+ break;
+
case OPTION_STUBSYMS:
emit_stub_syms = 1;
break;
projects / deliverable / binutils-gdb.git / blobdiff