PR 99935
	* rust-demangle.c: Add recursion limit.

Disallow PC relocations against weak undefined symbols in PIE since they
can lead to non-zero address at run-time.

bfd/

	PR ld/21782
	* elf64-x86-64.c (elf_x86_64_relocate_section): Disallow PC
	relocations against weak undefined symbols in PIE.

ld/

	PR ld/21782
	* testsuite/ld-x86-64/pie3.d: Expect linker error.

(cherry picked from commit 661b504d)

the fix for PR22756 only changed behaviour for hidden aliases,
but the same situation exists for non-hidden aliases: sym_hashes[]
can contain multiple entries pointing to the same symbol structure
leading to relaxation adjustment to be applied twice.

Fix this by testing for duplicates for everything that looks like it
has a version.

PR ld/28021

bfd/
	* elfnn-riscv.c (riscv_relax_delete_bytes): Check for any
	versioning.

ld/
	* testsuite/ld-riscv-elf/relax-twice.ver: New.
	* testsuite/ld-riscv-elf/relax-twice-1.s: New.
	* testsuite/ld-riscv-elf/relax-twice-2.s: New.
	* testsuite/ld-riscv-elf/ld-riscv-elf.exp
	(run_relax_twice_test): New, and call it.

(cherry picked from commit 235f5ef4)

Since plugin_maybe_claim calls bfd_close on the original input BFD if it
isn't an archive member, pass NULL to bfd_plugin_close_file_descriptor
to indicate that the BFD isn't an archive member.

bfd/

	PR ld/18028
	* plugin.c (bfd_plugin_close_file_descriptor): Check archive
	only of abfd != NULL.
	(try_claim): Pass NULL to bfd_plugin_close_file_descriptor if
	it isn't an archive member.

ld/

	PR ld/18028
	* plugin.c (plugin_input_file): Add comments for abfd and ibfd.
	(plugin_object_p): Set input->ibfd to NULL if it isn't an
	archive member.

(cherry picked from commit 7a30ac44)

gprof fails to compile on Solaris 10 and 11.3 with --disable-nls:

In file included from /vol/src/gnu/binutils/hg/binutils-2.37-branch/git/gprof/gprof.h:33,
                 from /vol/src/gnu/binutils/hg/binutils-2.37-branch/git/gprof/basic_blocks.c:24:
/usr/include/libintl.h:45:14: error: expected identifier or '(' before 'const'
   45 | extern char *dcgettext(const char *, const char *, const int);
      |              ^~~~~~~~~
/usr/include/libintl.h:46:14: error: expected identifier or '(' before 'const'
   46 | extern char *dgettext(const char *, const char *);
      |              ^~~~~~~~
/usr/include/libintl.h:47:14: error: expected identifier or '(' before 'const'
   47 | extern char *gettext(const char *);
      |              ^~~~~~~
/vol/src/gnu/binutils/hg/binutils-2.37-branch/git/gprof/../bfd/sysdep.h:165:33:
error: expected identifier or '(' before 'do'
  165 | # define textdomain(Domainname) do {} while (0)
      |                                 ^~
/vol/src/gnu/binutils/hg/binutils-2.37-branch/git/gprof/../bfd/sysdep.h:165:39:
error: expected identifier or '(' before 'while'
  165 | # define textdomain(Domainname) do {} while (0)
      |                                       ^~~~~
/vol/src/gnu/binutils/hg/binutils-2.37-branch/git/gprof/../bfd/sysdep.h:166:46:
error: expected identifier or '(' before 'do'
  166 | # define bindtextdomain(Domainname, Dirname) do {} while (0)
      |                                              ^~
/vol/src/gnu/binutils/hg/binutils-2.37-branch/git/gprof/../bfd/sysdep.h:166:52:
error: expected identifier or '(' before 'while'
  166 | # define bindtextdomain(Domainname, Dirname) do {} while (0)
      |                                                    ^~~~~
/usr/include/libintl.h:55:14: error: expected identifier or '(' before 'unsigned'
   55 | extern char *dcngettext(const char *, const char *,
      |              ^~~~~~~~~~
/usr/include/libintl.h:57:14: error: expected identifier or '(' before 'unsigned'
   57 | extern char *dngettext(const char *, const char *,
      |              ^~~~~~~~~
/usr/include/libintl.h:59:14: error: expected identifier or '(' before 'unsigned'
   59 | extern char *ngettext(const char *, const char *, unsigned long int);
      |              ^~~~~~~~

This is a known issue already partially fixed in binutils/sysdep.h.  For
gprof, the same fix needs to be applied in bfd/sysdep.h, as the
following patch does.  Tested on i386-pc-solaris2.10 and
i386-pc-solaris2.11.

2021-07-06  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	bfd:
	* sysdep.h [!ENABLE_NLS]: Prevent inclusion of <libintl.h> on
	Solaris.

binutils currently fails to compile on Solaris 10:

/vol/src/gnu/binutils/hg/binutils-2.37-branch/git/bfd/opncls.c: In function 'bfd_get_debug_link_info_1':
/vol/src/gnu/binutils/hg/binutils-2.37-branch/git/bfd/opncls.c:1231:16: error: implicit declaration of function 'strnlen' [-Werror=implicit-function-declaration]
 1231 |	  crc_offset = strnlen (name, size) + 1;
      |		       ^~~~~~~
/vol/src/gnu/binutils/hg/binutils-2.37-branch/git/bfd/opncls.c:1231:16: error: incompatible implicit declaration of built-in function 'strnlen' [-Werror]
/vol/src/gnu/binutils/hg/binutils-2.37-branch/git/bfd/opncls.c: In function 'bfd_get_alt_debug_link_info':
/vol/src/gnu/binutils/hg/binutils-2.37-branch/git/bfd/opncls.c:1319:20: error: incompatible implicit declaration of built-in function 'strnlen' [-Werror]
 1319 |	  buildid_offset = strnlen (name, size) + 1;
      |			   ^~~~~~~

and in a couple of other places.  The platform lacks strnlen, and while
libiberty.h can provide a fallback declaration, the necessary configure
test isn't run.

Fixed with the following patch.  Tested on i386-pc-solaris2.10.

2021-07-06  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	bfd:
	* configure.ac: Check for strnlen declaration.
	* configure, config.in: Regenerate.

	binutils:
	* configure.ac: Check for strnlen declaration.
	* configure, config.in: Regenerate.

Linker plugin_object_p opens the IR archive for each IR archive member.
For GCC plugin, plugin_object_p closes the archive file descriptor.  But
for LLVM plugin, the archive file descriptor remains open.  If there are
3000 IR archive members, there are 3000 file descriptors for them.  We
can run out of file descriptors petty easily.

1. Add archive_plugin_fd and archive_plugin_fd_open_count to bfd so that
we can cache and reuse the IR archive file descriptor for all IR archive
members in the archive.
2. Add bfd_plugin_close_file_descriptor to properly close the IR archive
file descriptor.

bfd/

	PR ld/28040
	* archive.c (_bfd_archive_close_and_cleanup): Close the archive
	plugin file descriptor if needed.
	* bfd.c (bfd): Add archive_plugin_fd and
	archive_plugin_fd_open_count.
	* opncls.c (_bfd_new_bfd): Initialize to -1.
	* plugin.c (bfd_plugin_open_input): Cache and reuse the archive
	plugin file descriptor.
	(bfd_plugin_close_file_descriptor): New function.
	(try_claim): Call bfd_plugin_close_file_descriptor.
	* plugin.h (bfd_plugin_close_file_descriptor): New.
	* bfd-in2.h: Regenerated.

ld/

	PR ld/28040
	* plugin.c (plugin_input_file): Add ibfd.
	(release_plugin_file_descriptor): New function.
	(release_input_file): Call release_plugin_file_descriptor to
	close input->fd.
	(plugin_object_p): Call release_plugin_file_descriptor to close
	input->fd.  Also call release_plugin_file_descriptor if not
	claimed.
	* testsuite/config/default.exp (RANLIB): New.
	* testsuite/ld-plugin/lto.exp: Run ranlib test.

(cherry picked from commit 91817247)

	Reapply this change from commit:
	50ad1254

	* Makefile.in (AR): Add @AR_PLUGIN_OPTION@
	(RANLIB): Add @RANLIB_PLUGIN_OPTION@.
	(configure_deps): Depend on ../config/gcc-plugin.m4.
	* aclocal.m4: Include ../config/gcc-plugin.m4.
	* configure.ac: AC_SUBST AR_PLUGIN_OPTION and
	RANLIB_PLUGIN_OPTION.
	* configure: Regenerated.

I found a few spots in ada-exp.y that could use 'const'.
Tested by rebuilding.

2021-07-02  Tom Tromey  <tromey@adacore.com>

	* ada-exp.y (chop_selector, chop_separator, write_selectors)
	(write_ambiguous_var, get_symbol_field_type): Use const.

gdb/ChangeLog:
yyyy-mm-dd  Pedro Alves  <pedro@palves.net>
	    Hannes Domani  <ssbssa@yahoo.de>

	* NEWS: Add new "TUI Improvements" section and mention mouse
	support and that unrecognized special keys are now passed to
	GDB.  Mention Python Window.click in the Python improvements
	section.

gdb/doc/ChangeLog:
yyyy-mm-dd  Pedro Alves  <pedro@palves.net>

	* gdb.texinfo (TUI): <TUI Mouse Support>: New node/section.

Co-Authored-By: Hannes Domani <ssbssa@yahoo.de>

Change-Id: I0d79a795d8ac561fd28cdc5184bff029ba28bc64

	PR 28046
	* dwarf2.c (read_ranges): Check that range_ptr does not exceed
	range_end.

	PR 28048
	* dwarf.c (get_type_signedness): Don't run off end of buffer
	printing DW_FORM_string attribute.

Some extern declarations differ in constnes to their definitions too.
Let's make sure this sort of thing doesn't happen again, but putting
the externs in a header where they belong.

gas/
	* config/tc-nds32.c (nds32_keyword_gpr): Don't declare.
	(md_begin): Constify k.
opcodes/
	* nds32-dis.c (nds32_find_reg_keyword): Constify arg and return.
	(nds32_parse_audio_ext, nds32_parse_opcode): Constify psys_reg.
	(nds32_field_table, nds32_opcode_table, nds32_keyword_table),
	(nds32_opcodes, nds32_operand_fields, nds32_keywords),
	(nds32_keyword_gpr): Move declarations to..
	* nds32-asm.h: ..here, constifying to match definitions.

	* config/tc-nds32.c: Change all references of keyword_gpr to
	nds32_keyword_gpr.

Move these options up to the common dir so we only test & export
them once across all ports.

The setting only affects igen based ports, and they were turning
this on by default, so keep the default in place.