Commit Graph

1157 Commits

Author SHA1 Message Date
H.J. Lu
577350603a lto: Also copy .note.gnu.property section
When generating the separate file with LTO debug sections, we should
also copy .note.gnu.property section.

	PR lto/93966
	* simple-object.c (handle_lto_debug_sections): Also copy
	.note.gnu.property section.
2020-03-02 03:09:08 -08:00
Sandra Loosemore
02ce382cd3 Use a non-empty test program to test ability to link.
On bare-metal targets, I/O support is typically provided by a BSP and
requires a linker script and/or hosting library to be specified on the
linker command line.  Linking an empty program with the default linker
script may succeed, however, which confuses libstdc++ configuration
when programs that probe for the presence of various I/O features fail
with link errors.

2020-02-12  Sandra Loosemore  <sandra@codesourcery.com>

	PR libstdc++/79193
	PR libstdc++/88999

	config/
	* no-executables.m4: Use a non-empty program to test for linker
	support.

	libgcc/
	* configure: Regenerated.

	libgfortran/
	* configure: Regenerated.

	libiberty/
	* configure: Regenerated.

	libitm/
	* configure: Regenerated.

	libobjc/
	* configure: Regenerated.

	libquadmath/
	* configure: Regenerated.

	libssp/
	* configure: Regenerated.

	libstdc++v-3/
	* configure: Regenerated.
2020-02-12 13:22:07 -08:00
Andrew Burgess
5f44a4341c libiberty/hashtab: More const parameters
Makes some parameters const in libiberty's hashtab library.

include/ChangeLog:

        * hashtab.h (htab_remove_elt): Make a parameter const.
        (htab_remove_elt_with_hash): Likewise.

libiberty/ChangeLog:

        * hashtab.c (htab_remove_elt): Make a parameter const.
        (htab_remove_elt_with_hash): Likewise.
2020-02-05 13:01:06 +00:00
Alexandre Oliva
18193e8f00 [libiberty] output empty args as a pair of quotes
writeargv writes out empty arguments in a way that expandargv skips
them instead of preserving them.  Fixed by writing out a pair of
quotes for them.


for  libiberty/ChangeLog

	* argv.c (writeargv): Output empty args as "".
2020-01-23 16:45:24 -03:00
Iain Sandoe
7ebbff3acb [libiberty] Update demangler to handle co_await operator.
C++20 coroutines introduces a new operator with a mangling of 'aw'.
This patch adds that to libiberty's demangler.

libiberty/ChangeLog:

2020-01-18  Iain Sandoe  <iain@sandoe.co.uk>

	* cp-demangle.c (cplus_demangle_operators): Add the co_await
	operator.
	* testsuite/demangle-expected: Test co_await operator mangling.
2020-01-18 12:15:12 +00:00
Jakub Jelinek
8d9254fc8a Update copyright years.
From-SVN: r279813
2020-01-01 12:51:42 +01:00
Tim Ruehsen
1cd4fe3d43 Fix read buffer overflow in split_directories
* make-relative-prefix.c (split_directories):
        Return early on empty 'name'

From-SVN: r279068
2019-12-06 15:20:06 -07:00
Jeff Law
513e0aa0c4 [PATCH] Fix slowness in demangler
* cp-demangle.c (d_print_init): Remove const from 4th param.
	(cplus_demangle_fill_name): Initialize d->d_counting.
	(cplus_demangle_fill_extended_operator): Likewise.
	(cplus_demangle_fill_ctor): Likewise.
	(cplus_demangle_fill_dtor): Likewise.
	(d_make_empty): Likewise.
	(d_count_templates_scopes): Remobe const from 3rd param,
	Return on dc->d_counting > 1,
	Increment dc->d_counting.
        * cp-demint.c (cplus_demangle_fill_component): Initialize d->d_counting.
	(cplus_demangle_fill_builtin_type): Likewise.
	(cplus_demangle_fill_operator): Likewise.

	* demangle.h (struct demangle_component): Add member
	d_counting.

From-SVN: r278359
2019-11-16 10:14:14 -07:00
Eduard-Mihai Burtescu
32fc3719e0 [PATCH] Refactor rust-demangle to be independent of C++ demangling.
* demangle.h (rust_demangle_callback): Add.

	* cplus-dem.c (cplus_demangle): Use rust_demangle directly.
	(rust_demangle): Remove.
	* rust-demangle.c (is_prefixed_hash): Rename to is_legacy_prefixed_hash.
	(parse_lower_hex_nibble): Rename to decode_lower_hex_nibble.
	(parse_legacy_escape): Rename to decode_legacy_escape.
	(rust_is_mangled): Remove.
	(struct rust_demangler): Add.
	(peek): Add.
	(next): Add.
	(struct rust_mangled_ident): Add.
	(parse_ident): Add.
	(rust_demangle_sym): Remove.
	(print_str): Add.
	(PRINT): Add.
	(print_ident): Add.
	(rust_demangle_callback): Add.
	(struct str_buf): Add.
	(str_buf_reserve): Add.
	(str_buf_append): Add.
	(str_buf_demangle_callback): Add.
	(rust_demangle): Add.
	* rust-demangle.h: Remove.

From-SVN: r278358
2019-11-16 08:32:50 -07:00
Miguel Saldivar
f73cb38f65 * testsuite/demangle-expected: Fix test.
From-SVN: r278357
2019-11-16 07:45:30 -07:00
Kamlesh Kumar
e0c866ddfd PR c++/91979 - mangling nullptr expression
2019-11-04  Kamlesh Kumar  <kamleshbhalui@gmail.com>

gcc/cp
        * cp/mangle.c (write_template_arg_literal): Handle nullptr
        mangling.
gcc
	* common.opt (-fabi-version): Document =14.
	* doc/invoke.texi (C++ Dialect Options): Likewise.
gcc/c-family
        * c-opts.c (c_common_post_options): Update
        latest_abi_version.
libiberty
        * cp-demangle.c (d_expr_primary): Handle
        nullptr demangling.
        * testsuite/demangle-expected: Added test.

From-SVN: r277801
2019-11-04 18:24:25 -05:00
Paul Pluzhnikov
1c40e11956 cp-demangle.c (d_number): Avoid signed int overflow.
2019-10-29 Paul Pluzhnikov  <ppluzhnikov@google.com>

	* cp-demangle.c (d_number): Avoid signed int overflow.

From-SVN: r277575
2019-10-29 08:29:59 -07:00
Miguel Saldivar
420fb10c09 cp-demangle.c (d_print_mod): Add a space before printing complex and imaginary, as opposed to after.
* cp-demangle.c (d_print_mod): Add a space before printing `complex`
	and `imaginary`, as opposed to after.
	* testsuite/demangle-expected: Adjust test.

From-SVN: r277535
2019-10-28 13:14:48 -06:00
Eduard-Mihai Burtescu
e1cb00db67 rust-demangle.c (looks_like_rust): Remove.
* rust-demangle.c (looks_like_rust): Remove.
	(rust_is_mangled): Don't check escapes.
	(is_prefixed_hash): Allow 0-9a-f permutations.
	(rust_demangle_sym): Don't bail on unknown escapes.
	* testsuite/rust-demangle-expected: Update 'main::$99$' test.

From-SVN: r276539
2019-10-03 15:54:47 -06:00
Eduard-Mihai Burtescu
42bf58bb13 rust-demangle.c (unescape): Remove.
* rust-demangle.c (unescape): Remove.
	(parse_lower_hex_nibble): New function.
	(parse_legacy_escape): New function.
	(is_prefixed_hash): Use parse_lower_hex_nibble.
	(looks_like_rust): Use parse_legacy_escape.
	(rust_demangle_sym): Use parse_legacy_escape.
	* testsuite/rust-demangle-expected: Add 'llv$u6d$' test.

From-SVN: r275353
2019-09-03 14:04:32 -06:00
Martin Liska
d23db3858e Share a prevailing name for remove debug info symbols w/ LTO.
2019-08-27  Martin Liska  <mliska@suse.cz>

	PR lto/91478
	* simple-object-elf.c (simple_object_elf_copy_lto_debug_sections):
	First find a WEAK HIDDEN symbol in symbol table that will be
	preserved.  Later, use the symbol name for all removed symbols.

From-SVN: r274955
2019-08-27 13:36:15 +00:00
Martin Liska
8f88e7f6f8 Move is_valid_fd to filedescriptor.c file.
2019-08-12  Martin Liska  <mliska@suse.cz>

	* Makefile.in: Add filedescriptor.c.
	* filedescriptor.c: New file.
	* lrealpath.c (is_valid_fd): Remove.

From-SVN: r274273
2019-08-12 07:36:48 +00:00
Martin Liska
0fddb18470 Fix file descriptor existence of MinGW.
2019-08-08  Martin Liska  <mliska@suse.cz>

	PR bootstrap/91352
	* gcc.c (driver::detect_jobserver): Use is_valid_fd.
	* lto-wrapper.c (jobserver_active_p): Likewise.
2019-08-08  Martin Liska  <mliska@suse.cz>

	PR bootstrap/91352
	* libiberty.h (is_valid_fd): New function.
2019-08-08  Martin Liska  <mliska@suse.cz>

	PR bootstrap/91352
	* lrealpath.c (is_valid_fd): New function.

From-SVN: r274208
2019-08-08 07:50:28 +00:00
Martin Liska
7012184434 Fix off-by-one in simple-object-elf.c (PR lto/91228).
2019-07-24  Martin Liska  <mliska@suse.cz>

	PR lto/91228
	* simple-object-elf.c (simple_object_elf_copy_lto_debug_sections):
	Find first '\0' starting from gnu_lto + 1.

From-SVN: r273757
2019-07-24 07:00:48 +00:00
Ren Kimura
b1bc0f5035 libiberty: Check zero value shstrndx in simple-object-elf.c
From-SVN: r273718
2019-07-23 07:33:32 +00:00
Martin Liska
a861990d21 Do not emit __gnu_lto_v1 symbol.
2019-07-22  Martin Liska  <mliska@suse.cz>

	* config/avr/avr.c (avr_asm_output_aligned_decl_common): Update
	comment.
	* toplev.c (compile_file): Do not emit __gnu_lto_v1 symbol.
2019-07-22  Martin Liska  <mliska@suse.cz>

	* config/pa/stublib.c: Remove stub symbol __gnu_lto_v1.
	* config/pa/t-stublib: Likewise.
2019-07-22  Martin Liska  <mliska@suse.cz>

	* simple-object-elf.c (simple_object_elf_copy_lto_debug_sections):
	Do not search for gnu_lto_v1, but search for first '\0'.

From-SVN: r273662
2019-07-22 07:34:47 +00:00
Eduard-Mihai Burtescu
979526c9ce demangle.h (rust_is_mangled): Move to libiberty/rust-demangle.h.
include/
	* demangle.h (rust_is_mangled): Move to libiberty/rust-demangle.h.
	(rust_demangle_sym): Move to libiberty/rust-demangle.h.
libiberty/
	* cplus-dem.c: Include rust-demangle.h.
	* rust-demangle.c: Include rust-demangle.h.
	* rust-demangle.h: New file.

From-SVN: r273573
2019-07-18 16:10:51 +02:00
Michael Forney
2a1c064a94 cp-demangle.c: Don't define CP_DYNAMIC_ARRAYS if __STDC_NO_VLA__ is non-zero.
* cp-demangle.c: Don't define CP_DYNAMIC_ARRAYS if __STDC_NO_VLA__
	is non-zero.

From-SVN: r271819
2019-05-31 12:25:48 -06:00
Ben L
6c8dbbfe5c d-demangle.c (dlang_parse_assocarray): Correctly handle error result.
* d-demangle.c (dlang_parse_assocarray): Correctly handle error result.
     * testsuite/d-demangle-expected: Add testcase.

From-SVN: r270700
2019-04-30 08:39:14 -06:00
Ben L
f181b8e780 d-demangle.c (dlang_parse_tuple): Correctly handle error result.
* d-demangle.c (dlang_parse_tuple): Correctly handle error result.
     * testsuite/d-demangle-expected: Add testcase.

From-SVN: r270699
2019-04-30 08:37:51 -06:00
Ben L
dba20a5140 d-demangle.c (dlang_parse_structlit): Correctly handle error result.
* d-demangle.c (dlang_parse_structlit): Correctly handle error result.
    * testsuite/d-demangle-expected: Add testcase.

From-SVN: r270698
2019-04-30 08:36:24 -06:00
Ben L
80b1ab1579 d-demangle.c (dlang_parse_arrayliteral): Correctly handle error result.
* d-demangle.c (dlang_parse_arrayliteral): Correctly handle error result.
    * testsuite/d-demangle-expected: Add testcase.

From-SVN: r270697
2019-04-30 08:34:52 -06:00
Ben L
81adfd10c9 d-demangle.c (dlang_parse_integer): Fix stack underflow.
* d-demangle.c (dlang_parse_integer): Fix stack underflow.
     * testsuite/d-demangle-expected: Add testcase.

From-SVN: r270696
2019-04-30 08:32:38 -06:00
Ben L
80024f3180 cp-demangle (d_print_comp_inner): Guard against a NULL 'typed_name'.
* cp-demangle (d_print_comp_inner): Guard against a NULL 'typed_name'.
    * testsuite/demangle-expected: Add testcase.

From-SVN: r270695
2019-04-30 08:22:41 -06:00
Ben L
927e42fd52 cp-demangle.c (d_encoding): Guard against NULL return values from d_right (dc).
* cp-demangle.c (d_encoding): Guard against NULL return values from
     d_right (dc).
     * testsuite/demangle-expected: Add testcase.

From-SVN: r270694
2019-04-30 08:20:11 -06:00
Ben L
956bea2cd6 cp-demangle.c (d_expression_1): Don't peek ahead unless the current char is valid.
* cp-demangle.c (d_expression_1): Don't peek ahead unless the current
	char is valid.
	* testsuite/demangle-expected: Add testcase.

From-SVN: r270664
2019-04-29 16:19:01 -06:00
Nick Clifton
6fe6bd7c08 Fix a stack exhaustion bug in libiberty's demangler when decoding a pathalogically constructed mangled name.
PR 89394
	* cp-demangle.c (cplus_demangle_fill_name): Reject negative
	lengths.
	(d_count_templates_scopes): Replace num_templates and num_scopes
	parameters with a struct d_print_info pointer parameter.  Adjust
	body of the function accordingly.  Add recursion counter and check
	that the recursion limit is not reached.
	(d_print_init): Pass dpi parameter to d_count_templates_scopes.
	Reset recursion counter afterwards, unless the recursion limit was
	reached.

From-SVN: r270258
2019-04-10 14:44:47 +00:00
Alan Modra
6d31ef2ab1 Regenerate libiberty/functions.texi
This patch just picks up changes made in r231983 (git 2afaef0360)
and r268793 (git 0f7c25df5f).

	* functions.texi: Regenerate.

From-SVN: r270189
2019-04-07 21:00:35 +09:30
Jason Merrill
62de703f19 hash-table.h (remove_elt_with_hash): Return if slot is NULL rather than if is_empty (*slot).
* hash-table.h (remove_elt_with_hash): Return if slot is NULL rather
	than if is_empty (*slot).
	* hash-set-tests.c (test_set_of_strings): Add tests for addition of
	existing elt and for elt removal.
	* hash-map-tests.c (test_map_of_strings_to_int): Add test for removal
	of already removed elt.

	* hashtab.c (htab_remove_elt_with_hash): Return if slot is NULL rather
	than if *slot is HTAB_EMPTY_ENTRY.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>

From-SVN: r269695
2019-03-14 23:47:01 +01:00
Philippe Waroquiers
f9f75f8d3c Fix splay tree KEY leak detected in GDB test gdb.base/macscp.exp
When a node is removed from a splay tree, the splay tree was
not using the function splay_tree_delete_key_fn to release the key.
This was causing a leak, fixed by Tom Tromey.

This patch fixes another key leak, that happens when a key equal to
a key already present is inserted.  In such a case, we have to release
the old KEY.
Note that this is based on the assumption that the caller always
allocates a new KEY when doing an insert.

Also, clarify the documentation about when the release functions are
called.

2019-02-11  Philippe Waroquiers  <philippe.waroquiers@skynet.be>

	* splay-tree.h (splay_tree_delete_key_fn): Update comment.
	(splay_tree_delete_value_fn): Likewise.

libiberty/ChangeLog
2019-02-11  Philippe Waroquiers  <philippe.waroquiers@skynet.be>

	* splay-tree.c (splay_tree_insert): Also release old KEY in case
	of insertion of a key equal to an already present key.
	(splay_tree_new_typed_alloc): Update comment.

From-SVN: r268793
2019-02-12 13:02:48 +00:00
Nidal Faour
4293cd6ed8 re PR lto/88422 (collect2.exe: fatal error: lto-wrapper returned 1 exit status: file not recognized: file truncated)
2019-01-22  Nidal Faour  <nidal.faour@wdc.com>

	PR lto/88422
	* simple-object.c (O_BINARY): Define if not already defined.
	(simple_object_copy_lto_debug_sections): Create file in binary
	mode.

From-SVN: r268141
2019-01-22 09:47:52 +00:00
Tom Tromey
2197ea1791 Fix leak in splay-tree
Philippe Waroquiers noticed a memory leak in gdb, which he tracked
down to a bug in splay-tree.  splay_tree_remove does not call the
`delete_key' function when it removes the old node; but it should.

I looked at every splay tree in GCC and there is only one that passes
a non-NULL delete function -- the one in lto.c.  That file does not
call splay_tree_remove.  So, I think this is safe to check in.

I re-ran the LTO tests to double check.

libiberty/
	* splay-tree.c (splay_tree_remove): Delete the key if necessary.

From-SVN: r268116
2019-01-21 15:25:29 +00:00
Tom Honermann
2d91f79dc9 Implement P0482R5, char8_t: A type for UTF-8 characters and strings
gcc/cp/
	* cvt.c (type_promotes_to): Handle char8_t promotion.
	* decl.c (grokdeclarator): Handle invalid type specifier
	combinations involving char8_t.
	* lex.c (init_reswords): Add char8_t as a reserved word.
	* mangle.c (write_builtin_type): Add name mangling for char8_t (Du).
	* parser.c (cp_keyword_starts_decl_specifier_p)
	(cp_parser_simple_type_specifier): Recognize char8_t as a simple
	type specifier.
	(cp_parser_string_literal): Use char8_array_type_node for the type
	of CPP_UTF8STRING.
	(cp_parser_set_decl_spec_type): Tolerate char8_t typedefs in system
	headers.
	* rtti.c (emit_support_tinfos): type_info support for char8_t.
	* tree.c (char_type_p): Recognize char8_t as a character type.
	* typeck.c (string_conv_p): Handle conversions of u8 string
	literals of char8_t type.
	(check_literal_operator_args): Handle UDLs with u8 string literals
	of char8_t type.
	* typeck2.c (ordinary_char_type_p): New.
	(digest_init_r): Disallow initializing a char array with a u8 string
	literal.
gcc/c-family/
	* c-common.c (c_common_reswords): Add char8_t.
	(fix_string_type): Use char8_t for the type of u8 string literals.
	(c_common_get_alias_set): char8_t doesn't alias.
	(c_common_nodes_and_builtins): Define char8_t as a builtin type in
	C++.
	(c_stddef_cpp_builtins): Add __CHAR8_TYPE__.
	(keyword_begins_type_specifier): Add RID_CHAR8.
	* c-common.h (rid): Add RID_CHAR8.
	(c_tree_index): Add CTI_CHAR8_TYPE and CTI_CHAR8_ARRAY_TYPE.
	Define D_CXX_CHAR8_T and D_CXX_CHAR8_T_FLAGS.
	Define char8_type_node and char8_array_type_node.
	* c-cppbuiltin.c (cpp_atomic_builtins): Predefine
	__GCC_ATOMIC_CHAR8_T_LOCK_FREE.
	(c_cpp_builtins): Predefine __cpp_char8_t.
	* c-lex.c (lex_string): Use char8_array_type_node as the type of
	CPP_UTF8STRING.
	(lex_charconst): Use char8_type_node as the type of CPP_UTF8CHAR.
	* c-opts.c: If not otherwise specified, enable -fchar8_t when
	targeting C++2a.
	* c.opt: Add the -fchar8_t command line option.
libiberty/
	* cp-demangle.c (cplus_demangle_builtin_types)
	(cplus_demangle_type): Add name demangling for char8_t (Du).
	* cp-demangle.h: Increase D_BUILTIN_TYPE_COUNT to accommodate the
	new char8_t type.

From-SVN: r267923
2019-01-14 14:55:51 -05:00
Sandra Loosemore
adcb167e03 PR other/16615 [2/5]
2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>

	PR other/16615 [2/5]

	include/
	* libiberty.h: Mechanically replace "can not" with "cannot".
	* plugin-api.h: Likewise.

	libiberty/
	* cp-demangle.c: Mechanically replace "can not" with "cannot".
	* floatformat.c: Likewise.
	* strerror.c: Likewise.

From-SVN: r267784
2019-01-09 16:39:49 -05:00
Jakub Jelinek
a554497024 Update copyright years.
From-SVN: r267494
2019-01-01 13:31:55 +01:00
Jason Merrill
6c8120c5ff Remove support for demangling GCC 2.x era mangling schemes.
libiberty/
	* 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/
	* demangle.h: Remove support for ancient GNU (pre-3.0), Lucid,
	ARM, HP, and EDG demangling styles.

From-SVN: r267363
2018-12-22 19:06:34 -05:00
Nick Clifton
e96d1d8c78 Add a recursion limit to libiberty's demangling code. The limit is enabled by default, but can be disabled via a new demangling option.
include	* demangle.h (DMGL_NO_RECURSE_LIMIT): Define.
        (DEMANGLE_RECURSION_LIMIT): Define

	PR 87681
	PR 87675
	PR 87636
	PR 87350
	PR 87335
libiberty * cp-demangle.h (struct d_info): Add recursion_level field.
	* cp-demangle.c (d_function_type): Add recursion counter.
	If the recursion limit is reached and the check is not disabled,
	then return with a failure result.
	(cplus_demangle_init_info): Initialise the recursion_level field.
        (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.
	(squangle_mop_up): Set the numb and numk fields to zero.
	(work_stuff_copy_to_from): Handle the case where a btypevec or 
	ktypevec field is NULL.
	(demangle_nested_args): Add recursion counter.  If
	the recursion limit is not disabled and reached, return with a
	failure result.

From-SVN: r266886
2018-12-07 10:33:30 +00:00
Jason Merrill
4be5c72cf3 Implement P0732R2, class types in non-type template parameters.
There is one significant piece of this that is not implemented yet: the
reliance on defaulted operator<=>, which someone else has been working on.
So, for the moment those lines are commented out of the testcases.

One tricky bit was treating template parameters of classtype as const
lvalues without making their decltype const; for this I used a
VIEW_CONVERT_EXPR wrapper, which previously could only appear in templates
as location wrappers.

The user-defined literal parts of P0732R2 are in the next patch.

gcc/cp/
	* error.c (dump_simple_decl): Look through a template parm object.
	* mangle.c (write_template_arg): Likewise.
	(mangle_template_parm_object): New.
	* pt.c (template_parm_object_p, get_template_parm_object): New.
	(invalid_tparm_referent_p): Factor from convert_nontype_argument.
	(convert_nontype_argument, invalid_nontype_parm_type_p): Handle
	class-type template arguments.
	* tree.c (lvalue_kind): Likewise.
gcc/c-family/
	* c-cppbuiltin.c (c_cpp_builtins): Add
	__cpp_nontype_template_parameter_class.
libiberty/
	* cp-demangle.c (d_dump, d_make_comp, d_count_templates_scopes)
	(d_print_comp_inner): Handle DEMANGLE_COMPONENT_TPARM_OBJ.
	(d_special_name): Handle TA.
	(d_expresion_1): Fix demangling of brace-enclosed initializer list.
include/
	* demangle.h (enum demangle_component_type): Add
	DEMANGLE_COMPONENT_TPARM_OBJ.

From-SVN: r265789
2018-11-05 02:47:02 -05:00
Joseph Myers
22e0527251 Update GCC to autoconf 2.69, automake 1.15.1 (PR bootstrap/82856).
This patch updates GCC to use autoconf 2.69 and automake 1.15.1.
(That's not the latest automake version, but it's the one used by
binutils-gdb, with which consistency is desirable, and in any case
seems a useful incremental update that should make a future update to
1.16.1 easier.)

The changes are generally similar to the binutils-gdb ones, and are
copied from there where shared files and directories are involved
(there are some further changes to such shared directories, however,
which I'd expect to apply to binutils-gdb once this patch is in GCC).
Largely, obsolete AC_PREREQ calls are removed, while many
AC_LANG_SOURCE calls are added to avoid warnings from aclocal and
autoconf.  Multilib support is no longer included in core automake,
meaning that multilib.am needs copying from automake's contrib
directory into the GCC source tree.  Autoconf 2.69 has Go support, so
local copies of that support are removed.  I hope the D support will
soon be submitted to upstream autoconf so the local copy of that can
be removed in a future update.  Changes to how automake generates
runtest calls mean quotes are removed from RUNTEST definitions in five
lib*/testsuite/Makefile.am files (libatomic, libgomp, libitm,
libphobos, libvtv; some others have RUNTEST definitions without
quotes, which are still OK); libgo and libphobos also get
-Wno-override added to AM_INIT_AUTOMAKE so those overrides of RUNTEST
do not generate automake warnings.

Note that the regeneration did not include regeneration of
fixincludes/config.h.in (attempting such regeneration resulted in all
the USED_FOR_TARGET conditionals disappearing; and I don't see
anything in the fixincludes/ directory that would result in such
conditionals being generated, unlike in the gcc/ directory).  Also
note that libvtv/testsuite/other-tests/Makefile.in was not
regenerated; that directory is not listed as a subdirectory for which
Makefile.in gets regenerated by calling "automake" in libvtv/, so I'm
not sure how it's meant to be regenerated.

While I mostly fixed warnings should running aclocal / automake /
autoconf, there were various such warnings from automake in the
libgfortran, libgo, libgomp, liboffloadmic, libsanitizer, libphobos
directories that I did not fix, preferring to leave those to the
relevant subsystem maintainers.  Specifically, most of those warnings
were of the following form (example from libgfortran):

Makefile.am:48: warning: source file 'caf/single.c' is in a subdirectory,
Makefile.am:48: but option 'subdir-objects' is disabled
automake: warning: possible forward-incompatibility.
automake: At least a source file is in a subdirectory, but the 'subdir-objects'
automake: automake option hasn't been enabled.  For now, the corresponding output
automake: object file(s) will be placed in the top-level directory.  However,
automake: this behaviour will change in future Automake versions: they
will
automake: unconditionally cause object files to be placed in the same subdirectory
automake: of the corresponding sources.
automake: You are advised to start using 'subdir-objects' option throughout your
automake: project, to avoid future incompatibilities.

I think it's best for the relevant maintainers to add subdir-objects
and do any other associated Makefile.am changes needed.  In some cases
the paths in the warnings involved ../; I don't know if that adds any
extra complications to the use of subdir-objects.

I've tested this with native, cross and Canadian cross builds.  The
risk of any OS-specific issues should I hope be rather lower than if a
libtool upgrade were included (we *should* do such an upgrade at some
point, but it's more complicated - it involves identifying all our
local libtool changes to see if any aren't included in the upstream
version we update to, and reverting an upstream libtool patch that's
inappropriate for use in GCC); I think it would be better to get this
update into GCC so that people can test in different configurations
and we can fix any issues found, rather than to try to get more and
more testing done before it goes in.

top level:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* multilib.am: New file.  From automake.

	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* libtool.m4: Use AC_LANG_SOURCE.
	* configure.ac: Remove AC_PREREQ, use AC_LANG_SOURCE.
	* ar-lib: New file.
	* test-driver: New file.
	* configure: Re-generate.

config:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* math.m4, tls.m4: Use AC_LANG_SOURCE.

	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* override.m4 (_GCC_AUTOCONF_VERSION): Bump from 2.64 to 2.69.

fixincludes:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* aclocal.m4, configure: Regenerate.

gcc:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.  Use single
	line for second argument of AC_DEFINE_UNQUOTED.
	* doc/install.texi (Tools/packages necessary for modifying GCC):
	Update to autoconf 2.69 and automake 1.15.1.
	* aclocal.m4, config.in, configure: Regenerate.

gnattools:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* configure: Regenerate.

gotools:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* config/go.m4: Remove file.
	* Makefile.am (ACLOCAL_AMFLAGS): Do not use -I ./config.
	* configure.ac:  Remove AC_PREREQ.  Do not include config/go.m4.
	* Makefile.in, aclocal.m4, configure: Regenerate.

intl:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* configure.ac: Add AC_USE_SYSTEM_EXTENSIONS, remove AC_PREREQ.
	* configure: Re-generate.
	* config.h.in: Re-generate.
	* aclocal.m4: Re-generate.

libada:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* configure: Regenerate.

libatomic:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* acinclude.m4: Use AC_LANG_SOURCE.
	* configure.ac: Remove AC_PREREQ.
	* testsuite/Makefile.am (RUNTEST): Remove quotes.
	* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
	Regenerate.

libbacktrace:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.
	* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.

libcc1:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, configure: Regenerate.

libcpp:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.
	* aclocal.m4, config.in, configure: Regenerate.

libdecnumber:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* configure.ac: Remove AC_PREREQ.
	* configure: Re-generate.
	* aclocal.m4.

libffi:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	(AUTOMAKE_OPTIONS): Add info-in-builddir.
	(CLEANFILES): Remove doc/libffi.info.
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, configure, fficonfig.h.in,
	include/Makefile.in, man/Makefile.in, testsuite/Makefile.in:
	Regenerate.

libgcc:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.
	* configure: Regenerate.

libgfortran:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.

libgo [logically part of this change but omitted from the commit]:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* config/go.m4: Remove file.
	* config/libtool.m4: Use AC_LANG_SOURCE.
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.  Use
	-Wno-override in AM_INIT_AUTOMAKE call.
	* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
	Regenerate.

libgomp:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am
	(AUTOMAKE_OPTIONS): Add info-in-builddir.
	(CLEANFILES): Remove libgomp.info.
	* configure.ac: Remove AC_PREREQ.
	* testsuite/Makefile.am (RUNTEST): Remove quotes.
	* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
	Regenerate.

libhsail-rt:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, configure: Regenerate.

libiberty:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* configure.ac: Remove AC_PREREQ.
	* configure: Re-generate.
	* config.in: Re-generate.

libitm:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	(AUTOMAKE_OPTIONS): Add info-in-builddir.
	(CLEANFILES): Remove libitm.info.
	* configure.ac: Remove AC_PREREQ.
	* testsuite/Makefile.am (RUNTEST): Remove quotes.
	* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
	Regenerate.

libobjc:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* aclocal.m4, config.h.in, configure: Regenerate.

liboffloadmic:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.
	* plugin/Makefile.am: Include multilib.am.
	* plugin/configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, configure, plugin/Makefile.in,
	plugin/aclocal.m4, plugin/configure: Regenerate.

libphobos:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.  Use -Wno-override in
	AM_INIT_AUTOMAKE call.
	* m4/autoconf.m4: Add extra argument to AC_LANG_DEFINE call.
	* m4/druntime/os.m4: Use AC_LANG_SOURCE.
	* testsuite/Makefile.am (RUNTEST): Remove quotes.
	* Makefile.in, aclocal.m4, configure, libdruntime/Makefile.in,
	src/Makefile.in, testsuite/Makefile.in: Regenerate.

libquadmath:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	(AUTOMAKE_OPTIONS): Remove 1.8.  Add info-in-builddir.
	(all-local): Define outside conditional code.
	(CLEANFILES): Remove libquadmath.info.
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.

libsanitizer:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.
	* Makefile.in, aclocal.m4, asan/Makefile.in, configure,
	interception/Makefile.in, libbacktrace/Makefile.in,
	lsan/Makefile.in, sanitizer_common/Makefile.in, tsan/Makefile.in,
	ubsan/Makefile.in: Regenerate.

libssp:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	(AUTOMAKE_OPTIONS): Remove 1.9.5.
	* configure.ac: Remove AC_PREREQ.  Quote argument to
	AC_RUN_IFELSE.
	* Makefile.in, aclocal.m4, configure: Regenerate.

libstdc++-v3:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, configure, doc/Makefile.in,
	include/Makefile.in, libsupc++/Makefile.in, po/Makefile.in,
	python/Makefile.in, src/Makefile.in, src/c++11/Makefile.in,
	src/c++17/Makefile.in, src/c++98/Makefile.in,
	src/filesystem/Makefile.in, testsuite/Makefile.in: Regenerate.

libvtv:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.
	* testsuite/Makefile.am (RUNTEST): Remove quotes.
	* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
	Regenerate.

lto-plugin:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.
	* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.

zlib:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.

	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* configure.ac: Modernize AC_INIT call, remove AC_PREREQ.
	* Makefile.am (AUTOMAKE_OPTIONS): Remove 1.8, cygnus, add foreign.
	* Makefile.in: Re-generate.
	* aclocal.m4: Re-generate.
	* configure: Re-generate.

From-SVN: r265695
2018-10-31 17:03:16 +00:00
Nathan Sidwell
df1346b423 [libiberty] Use pipe inside pex_run
https://gcc.gnu.org/ml/gcc-patches/2018-10/msg00039.html
	* configure.ac (checkfuncs): Add pipe2.
	* config.in, configure: Rebuilt.
	* pex-unix.c (pex_unix_exec_child): Comminicate errors from child
	to parent with a pipe, when possible.

From-SVN: r264769
2018-10-01 18:46:51 +00:00
Martin Liska
92a285c1a7 Replace 8 spaces with a tabular in ChangeLog files.
From-SVN: r263886
2018-08-27 14:04:23 +00:00
Nathan Sidwell
832c74d935 [libiberty patch] Fix PGO bootstrap
https://gcc.gnu.org/ml/gcc-patches/2018-08/msg01386.html
	PR driver/87056
	* pex-unix.c (pex_unix_exec_child): Duplicate bad_fn into local
	scopes to avoid potential clobber.

Co-Authored-By: Martin Liska <mliska@suse.cz>

From-SVN: r263807
2018-08-23 10:21:21 +00:00
Nathan Sidwell
5c12a85534 [libiberty patch] PEX-unix forking
https://gcc.gnu.org/ml/gcc-patches/2018-08/msg01170.html
	* pex-unix.c (pex_child_error): Delete.
	(pex_unix_exec_child): Commonize error paths to single message &
	exit.

From-SVN: r263679
2018-08-21 00:01:50 +00:00
Tom Tromey
6ef4752bc9 cplus-dem.c (remember_Btype): Don't call memcpy with LEN==0.
2018-07-30  Tom Tromey  <tom@tromey.com>

	* cplus-dem.c (remember_Btype): Don't call memcpy with LEN==0.

From-SVN: r263069
2018-07-30 13:47:01 +00:00
Martin Liska
c00c9d0365 Add linker_output as prefix for LTO temps (PR lto/86548).
2018-07-26  Martin Liska  <mliska@suse.cz>

        PR lto/86548
	* lto-wrapper.c: Add linker_output as prefix
        for ltrans_output_file.
2018-07-26  Martin Liska  <mliska@suse.cz>

        PR lto/86548
	* libiberty.h (make_temp_file_with_prefix): New function.
2018-07-26  Martin Liska  <mliska@suse.cz>

        PR lto/86548
	* make-temp-file.c (TEMP_FILE): Remove leading 'cc'.
	(make_temp_file): Call make_temp_file_with_prefix with
        first argument set to NULL.
	(make_temp_file_with_prefix): Support also prefix.

From-SVN: r262999
2018-07-26 12:13:14 +00:00