/* AIX emulation code for ${EMULATION_NAME}
Copyright 1991, 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
- 2003, 2004, 2005, 2006, 2007
+ 2003, 2004, 2005, 2006, 2007, 2008, 2009
Free Software Foundation, Inc.
Written by Steve Chamberlain <sac@cygnus.com>
AIX support by Ian Lance Taylor <ian@cygnus.com>
permitted). */
static int textro;
+/* A mask of XCOFF_EXPALL and XCOFF_EXPFULL flags, as set by their
+ associated -b and -bno options. */
+static unsigned int auto_export_flags;
+
+/* A mask of auto_export_flags bits that were explicitly set on the
+ command line. */
+static unsigned int explicit_auto_export_flags;
+
/* Whether to implement Unix like linker semantics. */
static int unix_ld;
{
ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
+ config.dynamic_link = TRUE;
config.has_shared = TRUE;
/* The link_info.[init|fini]_functions are initialized in ld/lexsup.c.
OPTION_AUTOIMP,
OPTION_ERNOTOK,
OPTION_EROK,
+ OPTION_EXPALL,
+ OPTION_EXPFULL,
OPTION_EXPORT,
OPTION_IMPORT,
OPTION_INITFINI,
OPTION_MAXSTACK,
OPTION_MODTYPE,
OPTION_NOAUTOIMP,
+ OPTION_NOEXPALL,
+ OPTION_NOEXPFULL,
OPTION_NOSTRCMPCT,
OPTION_PD,
OPTION_PT,
{"bernotok", no_argument, NULL, OPTION_ERNOTOK},
{"berok", no_argument, NULL, OPTION_EROK},
{"berrmsg", no_argument, NULL, OPTION_IGNORE},
+ {"bexpall", no_argument, NULL, OPTION_EXPALL},
+ {"bexpfull", no_argument, NULL, OPTION_EXPFULL},
{"bexport", required_argument, NULL, OPTION_EXPORT},
{"bf", no_argument, NULL, OPTION_ERNOTOK},
{"bgc", no_argument, &gc, 1},
{"bM", required_argument, NULL, OPTION_MODTYPE},
{"bmodtype", required_argument, NULL, OPTION_MODTYPE},
{"bnoautoimp", no_argument, NULL, OPTION_NOAUTOIMP},
+ {"bnoexpall", no_argument, NULL, OPTION_NOEXPALL},
+ {"bnoexpfull", no_argument, NULL, OPTION_NOEXPFULL},
{"bnodelcsect", no_argument, NULL, OPTION_IGNORE},
{"bnoentry", no_argument, NULL, OPTION_IGNORE},
{"bnogc", no_argument, &gc, 0},
break;
case OPTION_ERNOTOK:
- force_make_executable = FALSE;
+ link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
+ link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
break;
case OPTION_EROK:
- force_make_executable = TRUE;
+ link_info.unresolved_syms_in_objects = RM_IGNORE;
+ link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
+ break;
+
+ case OPTION_EXPALL:
+ auto_export_flags |= XCOFF_EXPALL;
+ explicit_auto_export_flags |= XCOFF_EXPALL;
+ break;
+
+ case OPTION_EXPFULL:
+ auto_export_flags |= XCOFF_EXPFULL;
+ explicit_auto_export_flags |= XCOFF_EXPFULL;
break;
case OPTION_EXPORT:
link_info.static_link = TRUE;
break;
+ case OPTION_NOEXPALL:
+ auto_export_flags &= ~XCOFF_EXPALL;
+ explicit_auto_export_flags |= XCOFF_EXPALL;
+ break;
+
+ case OPTION_NOEXPFULL:
+ auto_export_flags &= ~XCOFF_EXPFULL;
+ explicit_auto_export_flags |= XCOFF_EXPFULL;
+ break;
+
case OPTION_NOSTRCMPCT:
link_info.traditional_format = TRUE;
break;
executable. Of course, we only want to do this if we are
producing an XCOFF output file. */
r = link_info.relocatable;
- if (strstr (bfd_get_target (output_bfd), "xcoff") != NULL)
+ if (strstr (bfd_get_target (link_info.output_bfd), "xcoff") != NULL)
link_info.relocatable = TRUE;
ldctor_build_sets ();
link_info.relocatable = r;
}
size = (p->count + 2) * 4;
- if (!bfd_xcoff_link_record_set (output_bfd, &link_info, p->h, size))
+ if (!bfd_xcoff_link_record_set (link_info.output_bfd, &link_info,
+ p->h, size))
einfo ("%F%P: bfd_xcoff_link_record_set failed: %E\n");
}
}
struct export_symbol_list *el;
char *libpath;
asection *special_sections[XCOFF_NUMBER_OF_SPECIAL_SECTIONS];
- int i;
+ static const char *const must_keep_sections[] = {
+ ".text",
+ ".data",
+ ".bss"
+ };
+ unsigned int i, flags;
/* Handle the import and export files, if any. */
for (fl = import_files; fl != NULL; fl = fl->next)
h = bfd_link_hash_lookup (link_info.hash, el->name, FALSE, FALSE, FALSE);
if (h == NULL)
einfo ("%P%F: bfd_link_hash_lookup of export symbol failed: %E\n");
- if (!bfd_xcoff_export_symbol (output_bfd, &link_info, h))
+ if (!bfd_xcoff_export_symbol (link_info.output_bfd, &link_info, h))
einfo ("%P%F: bfd_xcoff_export_symbol failed: %E\n");
}
}
}
+ /* Default to -bexpfull for SVR4-like semantics. */
+ flags = (unix_ld ? XCOFF_EXPFULL : 0);
+ flags &= ~explicit_auto_export_flags;
+ flags |= auto_export_flags;
+
/* Let the XCOFF backend set up the .loader section. */
if (!bfd_xcoff_size_dynamic_sections
- (output_bfd, &link_info, libpath, entry_symbol.name, file_align,
+ (link_info.output_bfd, &link_info, libpath, entry_symbol.name, file_align,
maxstack, maxdata, gc && !unix_ld ? TRUE : FALSE,
- modtype, textro ? TRUE : FALSE, unix_ld, special_sections,
+ modtype, textro ? TRUE : FALSE, flags, special_sections,
rtld ? TRUE : FALSE))
einfo ("%P%F: failed to set dynamic section sizes: %E\n");
}
}
+ /* Executables and shared objects must always have .text, .data
+ and .bss output sections, so that the header can refer to them.
+ The kernel refuses to load objects that have missing sections. */
+ if (!link_info.relocatable)
+ for (i = 0; i < ARRAY_SIZE (must_keep_sections); i++)
+ {
+ asection *sec;
+
+ sec = bfd_get_section_by_name (link_info.output_bfd,
+ must_keep_sections[i]);
+ if (sec == NULL)
+ einfo ("%P: can't find required output section %s\n", must_keep_sections[i]);
+ else
+ sec->flags |= SEC_KEEP;
+ }
+
before_allocation_default ();
}
else
{
char cs;
- char *file;
+ char *start;
(void) obstack_finish (o);
keep = TRUE;
- imppath = s;
- file = NULL;
+ start = s;
while (!ISSPACE (*s) && *s != '(' && *s != '\0')
- {
- if (*s == '/')
- file = s + 1;
- ++s;
- }
- if (file != NULL)
- {
- file[-1] = '\0';
- impfile = file;
- if (imppath == file - 1)
- imppath = "/";
- }
- else
- {
- impfile = imppath;
- imppath = "";
- }
+ ++s;
cs = *s;
*s = '\0';
+ if (!bfd_xcoff_split_import_path (link_info.output_bfd,
+ start, &imppath, &impfile))
+ einfo ("%F%P: Could not parse import path: %E\n");
while (ISSPACE (cs))
{
++s;
}
else
{
- if (!bfd_xcoff_import_symbol (output_bfd, &link_info, h,
+ if (!bfd_xcoff_import_symbol (link_info.output_bfd,
+ &link_info, h,
address, imppath, impfile,
impmember, syscall_flag))
einfo ("%X%s:%d: failed to import symbol %s: %E\n",
rs = &s->reloc_statement;
if (rs->name == NULL)
einfo ("%F%P: only relocations against symbols are permitted\n");
- if (!bfd_xcoff_link_count_reloc (output_bfd, &link_info, rs->name))
+ if (!bfd_xcoff_link_count_reloc (link_info.output_bfd, &link_info,
+ rs->name))
einfo ("%F%P: bfd_xcoff_link_count_reloc failed: %E\n");
}
case etree_assign:
if (strcmp (exp->assign.dst, ".") != 0)
{
- if (!bfd_xcoff_record_link_assignment (output_bfd, &link_info,
+ if (!bfd_xcoff_record_link_assignment (link_info.output_bfd,
+ &link_info,
exp->assign.dst))
einfo ("%P%F: failed to record assignment to %s: %E\n",
exp->assign.dst);
gld${EMULATION_NAME}_create_output_section_statements (void)
{
/* __rtinit */
- if ((bfd_get_flavour (output_bfd) == bfd_target_xcoff_flavour)
+ if ((bfd_get_flavour (link_info.output_bfd) == bfd_target_xcoff_flavour)
&& (link_info.init_function != NULL
|| link_info.fini_function != NULL
|| rtld))
lang_input_file_is_file_enum,
NULL);
- initfini_file->the_bfd = bfd_create ("initfini", output_bfd);
+ initfini_file->the_bfd = bfd_create ("initfini", link_info.output_bfd);
if (initfini_file->the_bfd == NULL
|| ! bfd_set_arch_mach (initfini_file->the_bfd,
- bfd_get_arch (output_bfd),
- bfd_get_mach (output_bfd)))
+ bfd_get_arch (link_info.output_bfd),
+ bfd_get_mach (link_info.output_bfd)))
{
einfo ("%X%P: can not create BFD %E\n");
return;
static void
gld${EMULATION_NAME}_set_output_arch (void)
{
- bfd_set_arch_mach (output_bfd,
- bfd_xcoff_architecture (output_bfd),
- bfd_xcoff_machine (output_bfd));
+ bfd_set_arch_mach (link_info.output_bfd,
+ bfd_xcoff_architecture (link_info.output_bfd),
+ bfd_xcoff_machine (link_info.output_bfd));
+
+ ldfile_output_architecture = bfd_get_arch (link_info.output_bfd);
+ ldfile_output_machine = bfd_get_mach (link_info.output_bfd);
+ ldfile_output_machine_name = bfd_printable_name (link_info.output_bfd);
+}
- ldfile_output_architecture = bfd_get_arch (output_bfd);
- ldfile_output_machine = bfd_get_mach (output_bfd);
- ldfile_output_machine_name = bfd_printable_name (output_bfd);
+static bfd_boolean
+gld${EMULATION_NAME}_open_dynamic_archive (const char *arch,
+ search_dirs_type *search,
+ lang_input_statement_type *entry)
+{
+ const char *filename;
+ char *path;
+
+ if (!entry->is_archive)
+ return FALSE;
+
+ filename = entry->filename;
+ path = concat (search->name, "/lib", entry->filename, arch, ".a", NULL);
+ if (!ldfile_try_open_bfd (path, entry))
+ {
+ free (path);
+ return FALSE;
+ }
+ /* Don't include the searched directory in the import path. */
+ bfd_xcoff_set_archive_import_path (&link_info, entry->the_bfd,
+ path + strlen (search->name) + 1);
+ entry->filename = path;
+ return TRUE;
}
struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = {
"${OUTPUT_FORMAT}",
finish_default,
gld${EMULATION_NAME}_create_output_section_statements,
- 0, /* open_dynamic_archive */
+ gld${EMULATION_NAME}_open_dynamic_archive,
0, /* place_orphan */
0, /* set_symbols */
gld${EMULATION_NAME}_parse_args,
projects / msp430-binutils.git / blobdiff