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. * libiberty: Sync with gcc. Bring in:
2019-01-09 Sandra Loosemore <sandra@codesourcery.com>
PR other/16615
* cp-demangle.c: Mechanically replace "can not" with "cannot".
* floatformat.c: Likewise.
* strerror.c: Likewise.
2018-12-22 Jason Merrill <jason@redhat.com>
Remove support for demangling GCC 2.x era mangling schemes.
* cplus-dem.c: Remove cplus_mangle_opname, cplus_demangle_opname,
internal_cplus_demangle, and all subroutines.
(libiberty_demanglers): Remove entries for ancient GNU (pre-3.0),
Lucid, ARM, HP, and EDG demangling styles.
(cplus_demangle): Remove 'work' variable. Don't call
internal_cplus_demangle.
include * Merge from GCC:
2018-12-22 Jason Merrill <jason@redhat.com>
* demangle.h: Remove support for ancient GNU (pre-3.0), Lucid,
ARM, HP, and EDG demangling styles.
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to 2048.
PR 88409
include * demangle.h (DEMANGLE_RECURSION_LIMIT): Increase to 2048.
binutils* NEWS: Note that recursion limit has increased to 2048.
* doc/binutils.texi: Likewise.
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that support name demangling.
This patch addresses the multitude of bug reports about resource exhaustion
in libiberty's name demangling code. It adds a limit to the amount of
recursion that is allowed, before an error is triggered. It also adds a
new demangling option to disable this limit. (The limit is enabled by
default).
PR 87681
PR 87675
PR 87636
PR 87335
libiberty * cp-demangle.h (struct d_info): Add recursion_limit field.
* cp-demangle.c (d_function_type): If the recursion limit is
enabled and reached, return with a failure result.
(d_demangle_callback): If the recursion limit is enabled, check
for a mangled string that is so long that there is not enough
stack space for the local arrays.
* cplus-dem.c (struct work): Add recursion_level field.
(demangle_nested_args): If the recursion limit is enabled and
reached, return with a failure result.
include * demangle.h (DMGL_RECURSE_LIMIT): Define.
(DEMANGLE_RECURSION_LIMIT): Prototype.
binutuils * addr2line.c (demangle_flags): New static variable.
(long_options): Add --recurse-limit and --no-recurse-limit.
(translate_address): Pass demangle_flags to bfd_demangle.
(main): Handle --recurse-limit and --no-recurse-limit options.
* cxxfilt.c (flags): Add DMGL_RECURSE_LIMIT.
(long_options): Add --recurse-limit and --no-recurse-limit.
(main): Handle new options.
* dlltool.c (gen_def_file): Include DMGL_RECURSE_LIMIT in flags
passed to cplus_demangle.
* nm.c (demangle_flags): New static variable.
(long_options): Add --recurse-limit and --no-recurse-limit.
(main): Handle new options.
* objdump.c (demangle_flags): New static variable.
(usage): Add --recurse-limit and --no-recurse-limit.
(long_options): Likewise.
(objdump_print_symname): Pass demangle_flags to bfd_demangle.
(disassemble_section): Likewise.
(dump_dymbols): Likewise.
(main): Handle new options.
* prdbg.c (demangle_flags): New static variable.
(tg_variable): Pass demangle_flags to demangler.
(tg_start_function): Likewise.
* stabs.c (demangle_flags): New static variable.
(stab_demangle_template): Pass demangle_flags to demangler.
(stab_demangle_v3_argtypes): Likewise.
(stab_demangle_v3_arg): Likewise.
* doc/binutuls.texi: Document new command line options.
* NEWS: Mention the new feature.
* testsuite/config/default.exp (CXXFILT): Define if not already
defined.
(CXXFILTFLAGS): Likewise.
* testsuite/binutils-all/cxxfilt.exp: New file. Runs a few
simple tests of the cxxfilt program.
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PR demangler/70909
PR demangler/67264
* cp-demangle.c: Fix endless recursion. Pass
struct demangle_component as non const.
(d_make_empty): Initialize variable.
(d_print_comp_inner): Limit recursion.
(d_print_comp): Decrement variable.
* cp-demint.c (cplus_demangle_fill_component): Initialize
variable.
(cplus_demangle_fill_builtin_type): Likewise.
(cplus_demangle_fill_operator): Likewise.
* testsuite/demangle-expected: Add tests.
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Adds Rust symbol demangler. Rust mangles symbols using GNU_V3 style,
adding a hash and various special character subtitutions. This adds
a new rust style to cplus_demangle and adds 3 helper functions
rust_demangle, rust_demangle_sym and rust_is_mangled.
rust-demangle.c was written by David. Mark did the code formatting to
GNU style and integration into the gcc/libiberty build system and
testsuite.
include/ChangeLog:
2016-11-03 David Tolnay <dtolnay@gmail.com>
Mark Wielaard <mark@klomp.org>
* demangle.h (DMGL_RUST): New macro.
(DMGL_STYLE_MASK): Add DMGL_RUST.
(demangling_styles): Add dlang_rust.
(RUST_DEMANGLING_STYLE_STRING): New macro.
(RUST_DEMANGLING): New macro.
(rust_demangle): New prototype.
(rust_is_mangled): Likewise.
(rust_demangle_sym): Likewise.
libiberty/ChangeLog:
2016-11-03 David Tolnay <dtolnay@gmail.com>
Mark Wielaard <mark@klomp.org>
* Makefile.in (CFILES): Add rust-demangle.c.
(REQUIRED_OFILES): Add rust-demangle.o.
* cplus-dem.c (libiberty_demanglers): Add rust_demangling case.
(cplus_demangle): Handle RUST_DEMANGLING.
(rust_demangle): New function.
* rust-demangle.c: New file.
* testsuite/Makefile.in (really-check): Add check-rust-demangle.
(check-rust-demangle): New rule.
* testsuite/rust-demangle-expected: New file.
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libiberty/
* cp-demangle.c (is_fnqual_component_type): New.
(d_encoding, d_print_comp_inner, d_print_mod_list): Use it.
(FNQUAL_COMPONENT_CASE): New.
(d_make_comp, has_return_type, d_print_comp_inner)
(d_print_function_type): Use it.
(next_is_type_qual): New.
(d_cv_qualifiers, d_print_mod): Handle noexcept and throw-spec.
include/
* demangle.h (enum demangle_component_type): Add
DEMANGLE_COMPONENT_NOEXCEPT, DEMANGLE_COMPONENT_THROW_SPEC.
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The fix for bug 59195:
[C++ demangler handles conversion operator incorrectly]
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59195
unfortunately makes the demangler crash due to infinite recursion, in
case of casts in template parameters.
For example, with:
template<int> struct A {};
template <typename Y> void function_temp(A<sizeof ((Y)(999))>) {}
template void function_temp<int>(A<sizeof (int)>);
The 'function_temp<int>' instantiation above mangles to:
_Z13function_tempIiEv1AIXszcvT_Li999EEE
The demangler parses this as:
typed name
template
name 'function_temp'
template argument list
builtin type int
function type
builtin type void
argument list
template (*)
name 'A'
template argument list
unary operator
operator sizeof
unary operator
cast
template parameter 0 (**)
literal
builtin type int
name '999'
And after the fix for 59195, due to:
static void
d_print_cast (struct d_print_info *dpi, int options,
const struct demangle_component *dc)
{
...
/* For a cast operator, we need the template parameters from
the enclosing template in scope for processing the type. */
if (dpi->current_template != NULL)
{
dpt.next = dpi->templates;
dpi->templates = &dpt;
dpt.template_decl = dpi->current_template;
}
when printing the template argument list of A (what should be "<sizeof
(int)>"), the template parameter 0 (that is, "T_", the '**' above) now
refers to the first parameter of the the template argument list of the
'A' template (the '*' above), exactly what we were already trying to
print. This leads to infinite recursion, and stack exaustion. The
template parameter 0 should actually refer to the first parameter of
the 'function_temp' template.
Where it reads "for the cast operator" in the comment in d_print_cast
(above), it's really talking about a conversion operator, like:
struct A { template <typename U> explicit operator U(); };
We don't want to inject the template parameters from the enclosing
template in scope when processing a cast _expression_, only when
handling a conversion operator.
The problem is that DEMANGLE_COMPONENT_CAST is currently ambiguous,
and means _both_ 'conversion operator' and 'cast expression'.
Fix this by adding a new DEMANGLE_COMPONENT_CONVERSION component type,
which does what DEMANGLE_COMPONENT_CAST does today, and making
DEMANGLE_COMPONENT_CAST just simply print its component subtree.
I think we could instead reuse DEMANGLE_COMPONENT_CAST and in
d_print_comp_inner still do:
@@ -5001,9 +5013,9 @@ d_print_comp_inner (struct d_print_info *dpi, int options,
d_print_comp (dpi, options, dc->u.s_extended_operator.name);
return;
case DEMANGLE_COMPONENT_CAST:
d_append_string (dpi, "operator ");
- d_print_cast (dpi, options, dc);
+ d_print_conversion (dpi, options, dc);
return;
leaving the unary cast case below calling d_print_cast, but seems to
me that spliting the component types makes it easier to reason about
the code.
g++'s testsuite actually generates three symbols that crash the
demangler in the same way. I've added those as tests in the demangler
testsuite as well.
And then this fixes PR other/61233 too, which happens to be a
demangler crash originally reported to GDB, at:
https://sourceware.org/bugzilla/show_bug.cgi?id=16957
Bootstrapped and regtested on x86_64 Fedora 20.
Also ran this through GDB's testsuite. GDB will require a small
update to use DEMANGLE_COMPONENT_CONVERSION in one place it's using
DEMANGLE_COMPONENT_CAST in its sources.
libiberty/
2015-11-27 Pedro Alves <palves@redhat.com>
PR other/61321
PR other/61233
* demangle.h (enum demangle_component_type)
<DEMANGLE_COMPONENT_CONVERSION>: New value.
* cp-demangle.c (d_demangle_callback, d_make_comp): Handle
DEMANGLE_COMPONENT_CONVERSION.
(is_ctor_dtor_or_conversion): Handle DEMANGLE_COMPONENT_CONVERSION
instead of DEMANGLE_COMPONENT_CAST.
(d_operator_name): Return a DEMANGLE_COMPONENT_CONVERSION
component if handling a conversion.
(d_count_templates_scopes, d_print_comp_inner): Handle
DEMANGLE_COMPONENT_CONVERSION.
(d_print_comp_inner): Handle DEMANGLE_COMPONENT_CONVERSION instead
of DEMANGLE_COMPONENT_CAST.
(d_print_cast): Rename as ...
(d_print_conversion): ... this. Adjust comments.
(d_print_cast): Rewrite - simply print the left subcomponent.
* cp-demint.c (cplus_demangle_fill_component): Handle
DEMANGLE_COMPONENT_CONVERSION.
* testsuite/demangle-expected: Add tests.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231020 138bc75d-0d04-0410-961f-82ee72b054a4
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gcc/
* builtins.def (BUILT_IN_ABORT): Add transaction_pure attribute.
gcc/c-family/
* c-common.c (c_common_reswords): Add C++ TM TS keywords.
(c_common_attribute_table): Add transaction_safe_dynamic.
transaction_safe now affects type identity.
(handle_tm_attribute): Handle transaction_safe_dynamic.
* c-common.h (enum rid): Add RID_ATOMIC_NOEXCEPT,
RID_ATOMIC_CANCEL, RID_SYNCHRONIZED.
(OBJC_IS_CXX_KEYWORD): Add RID_SYNCHRONIZED.
(D_TRANSMEM): New.
* c-cppbuiltin.c (c_cpp_builtins): Define __cpp_transactional_memory.
* c-pretty-print.c (pp_c_attributes_display): Don't print
transaction_safe in C++.
gcc/c/
* c-parser.c (c_lex_one_token): Handle @synchronized.
* c-decl.c (match_builtin_function_types): A declaration of a built-in
can change whether the function is transaction_safe.
gcc/cp/
* cp-tree.h (struct cp_declarator): Add tx_qualifier field.
(BCS_NORMAL, BCS_TRANSACTION): New enumerators.
* lex.c (init_reswords): Limit TM kewords to -fgnu-tm.
* parser.c (cp_lexer_get_preprocessor_token): Fix @synchronized.
(make_call_declarator): Take tx_qualifier.
(cp_parser_tx_qualifier_opt): New.
(cp_parser_lambda_declarator_opt): Use it.
(cp_parser_direct_declarator): Likewise.
(cp_parser_statement): Handle atomic_noexcept, atomic_cancel.
(cp_parser_compound_statement): Change in_try parameter to bcs_flags.
(cp_parser_std_attribute): Map optimize_for_synchronized to
transaction_callable.
(cp_parser_transaction): Take the token. Handle atomic_noexcept.
* lambda.c (maybe_add_lambda_conv_op): Handle transaction-safety.
* call.c (enum conversion_kind): Add ck_tsafe.
(standard_conversion): Handle transaction-safety conversion.
(convert_like_real, resolve_address_of_overloaded_function): Likewise.
(check_methods): Diagnose transaction_safe_dynamic on non-virtual
function.
(look_for_tm_attr_overrides): Don't inherit transaction_safe_dynamic.
* cvt.c (tx_safe_fn_type_p, tx_unsafe_fn_variant)
(can_convert_tx_safety): New.
* typeck.c (composite_pointer_type): Handle transaction-safety.
* name-lookup.h (enum scope_kind): Add sk_transaction.
* name-lookup.c (begin_scope): Handle it.
* semantics.c (begin_compound_stmt): Pass it.
* decl.c (check_previous_goto_1): Check it.
(struct named_label_entry): Add in_transaction_scope.
(poplevel_named_label_1): Set it.
(check_goto): Check it.
(duplicate_decls): A specialization can be transaction_safe
independently of its template.
(grokdeclarator): Handle tx-qualifier.
* rtti.c (ptr_initializer): Handle transaction-safe.
* search.c (check_final_overrider): Check transaction_safe_dynamic.
Don't check transaction_safe.
* mangle.c (write_function_type): Mangle transaction_safe here.
(write_CV_qualifiers_for_type): Not here.
(write_type): Preserve transaction_safe when stripping attributes.
* error.c (dump_type_suffix): Print transaction_safe.
libiberty/
* cp-demangle.c (d_cv_qualifiers): Dx means transaction_safe.
(cplus_demangle_type): Let d_cv_qualifiers handle it.
(d_dump, d_make_comp, has_return_type, d_encoding)
(d_count_templates_scopes, d_print_comp_inner)
(d_print_mod_list, d_print_mod, d_print_function_type)
(is_ctor_or_dtor): Handle DEMANGLE_COMPONENT_TRANSACTION_SAFE.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@228462 138bc75d-0d04-0410-961f-82ee72b054a4
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include/ChangeLog
* libiberty.h (PEX_STDOUT_APPEND): New flag.
(PEX_STDERR_APPEND): Likewise.
* demangle.h (DMGL_DLANG): New macro.
(DMGL_STYLE_MASK): Add DMGL_DLANG.
(demangling_styles): Add dlang_demangling.
(DLANG_DEMANGLING_STYLE_STRING): New macro.
(DLANG_DEMANGLING): New macro.
(dlang_demangle): New prototype.
* longlong.h: Add __udiv_w_sdiv prototype.
libiberty/ChangeLog
* cp-demangle.c (d_substitution): Handle abi tags on abbreviation.
* pex-common.h (struct pex_funcs): Add new parameter for open_write field.
* pex-unix.c (pex_unix_open_write): Add support for new parameter.
* pex-djgpp.c (pex_djgpp_open_write): Likewise.
* pex-win32.c (pex_win32_open_write): Likewise.
* pex-common.c (pex_run_in_environment): Likewise.
* Makefile.in (CFILES): Add d-demangle.c.
(REQUIRED_OFILES): Add d-demangle.o.
* cplus-dem.c (libiberty_demanglers): Add dlang_demangling case.
(cplus_demangle): Likewise.
* d-demangle.c: New file.
* testsuite/Makefile.in (really-check): Add check-d-demangle.
* testsuite/d-demangle-expected: New file.
* simple-object-elf.c (simple_object_elf_write_ehdr): Correctly
handle objects with more than SHN_LORESERVE sections.
(simple_object_elf_write_shdr): Add sh_link parameter.
(simple_object_elf_write_to_file): Correctly handle objects with
more than SHN_LORESERVE sections.
* cp-demangle.c (d_dump): Only access field from s_fixed part of
the union for DEMANGLE_COMPONENT_FIXED_TYPE.
(d_count_templates_scopes): Likewise.
* testsuite/demangler-fuzzer.c: New file.
* testsuite/Makefile.in (fuzz-demangler): New rule.
(demangler-fuzzer): Likewise.
(mostlyclean): Clean up demangler fuzzer.
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PR c++/41090
Add -fdeclone-ctor-dtor.
include/
* demangle.h (enum gnu_v3_ctor_kinds):
Added literal gnu_v3_unified_ctor.
(enum gnu_v3_ctor_kinds):
Added literal gnu_v3_unified_dtor.
libiberty/
* cp-demangle.c (cplus_demangle_fill_ctor,cplus_demangle_fill_dtor):
Handle unified ctor/dtor.
(d_ctor_dtor_name): Handle unified ctor/dtor.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@206182 138bc75d-0d04-0410-961f-82ee72b054a4
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2008-01-26 David Daney <ddaney@avtrex.com>
* demangle.h (demangle_component_type): Add
DEMANGLE_COMPONENT_JAVA_RESOURCE,
DEMANGLE_COMPONENT_COMPOUND_NAME, and
DEMANGLE_COMPONENT_CHARACTER as new enum values.
(demangle_component): Add struct s_character to union u.
libiberty/
2008-01-26 David Daney <ddaney@avtrex.com>
* cp-demangle.c (d_dump): Handle DEMANGLE_COMPONENT_JAVA_RESOURCE,
DEMANGLE_COMPONENT_COMPOUND_NAME, and
DEMANGLE_COMPONENT_CHARACTER cases.
(d_make_comp): Handle DEMANGLE_COMPONENT_COMPOUND_NAME and
DEMANGLE_COMPONENT_JAVA_RESOURCE cases.
(d_make_character): New function.
(d_java_resource): Same.
(d_special_name): Handle "Gr" case.
(d_print_comp): Handle DEMANGLE_COMPONENT_JAVA_RESOURCE,
DEMANGLE_COMPONENT_COMPOUND_NAME, and
DEMANGLE_COMPONENT_CHARACTER cases.
* testsuite/demangle-expected: Add test for java resource name
mangling.
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* demangle.h (DEMANGLE_COMPONENT_HIDDEN_ALIAS): New.
libiberty/
* cp-demangle.c (d_dump): Handle DEMANGLE_COMPONENT_HIDDEN_ALIAS.
(d_make_comp, d_print_comp): Likewise.
(d_special_name): Generate one.
* testsuite/demangle-expected: Add a hidden alias test.
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"libiberty.h".
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* demangle.h: Support C++.
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