* options.h (class General_options): Add
	--allow-multiple-definition and -z muldefs.
	* resolve.cc (Symbol_table::should_override): Don't warn about a
	multiple symbol definition if --allow-multiple-definition or -z
	muldefs.
This commit is contained in:
Ian Lance Taylor 2010-01-05 05:56:28 +00:00
parent a0f1928042
commit 30bc8c4670
3 changed files with 21 additions and 3 deletions

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@ -1,5 +1,12 @@
2010-01-04 Ian Lance Taylor <iant@google.com>
PR 10980
* options.h (class General_options): Add
--allow-multiple-definition and -z muldefs.
* resolve.cc (Symbol_table::should_override): Don't warn about a
multiple symbol definition if --allow-multiple-definition or -z
muldefs.
PR 10980
* options.h (class General_options): Add --add-needed and
--copy-dt-needed-entries. Tweak --as-needed help entry.

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@ -584,6 +584,10 @@ class General_options
N_("Not supported"),
N_("Do not copy DT_NEEDED tags from shared libraries"));
DEFINE_bool(allow_multiple_definition, options::TWO_DASHES, '\0', false,
N_("Allow multiple definitions of symbols"),
N_("Do not allow multiple definitions"));
DEFINE_bool(allow_shlib_undefined, options::TWO_DASHES, '\0', false,
N_("Allow unresolved references in shared libraries"),
N_("Do not allow unresolved references in shared libraries"));
@ -998,6 +1002,11 @@ class General_options
NULL);
DEFINE_uint64(max_page_size, options::DASH_Z, '\0', 0,
N_("Set maximum page size to SIZE"), N_("SIZE"));
DEFINE_bool(muldefs, options::DASH_Z, '\0', false,
N_("Allow multiple definitions of symbols"),
NULL);
// copyreloc is here in the list because there is only -z
// nocopyreloc, not -z copyreloc.
DEFINE_bool(copyreloc, options::DASH_Z, '\0', true,
NULL,
N_("Do not create copy relocs"));

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@ -440,9 +440,11 @@ Symbol_table::should_override(const Symbol* to, unsigned int frombits,
|| (object != NULL && object->just_symbols()))
return false;
Symbol_table::report_resolve_problem(true,
_("multiple definition of '%s'"),
to, defined, object);
if (!parameters->options().allow_multiple_definition()
&& !parameters->options().muldefs())
Symbol_table::report_resolve_problem(true,
_("multiple definition of '%s'"),
to, defined, object);
return false;
case WEAK_DEF * 16 + DEF: