Before commit 3b6acaee "Update more calls to add_prefix_cmd" we had the
following output for "show logging":
...
$ gdb -q -batch -ex "set trace-commands on" \
    -ex "set logging off" \
    -ex "show logging" \
    -ex "set logging on" \
    -ex "show logging"
+set logging off
+show logging
Future logs will be written to gdb.txt.
Logs will be appended to the log file.
Output will be logged and displayed.
Debug output will be logged and displayed.
+set logging on
+show logging
Currently logging to "gdb.txt".
Logs will be appended to the log file.
Output will be logged and displayed.
Debug output will be logged and displayed.
...

After that commit we have instead:
...
+set logging off
+show logging
debugredirect:  The logging output mode is off.
file:  The current logfile is "gdb.txt".
overwrite:  Whether logging overwrites or appends to the log file is off.
redirect:  The logging output mode is off.
+set logging on
+show logging
debugredirect:  The logging output mode is off.
file:  The current logfile is "gdb.txt".
overwrite:  Whether logging overwrites or appends to the log file is off.
redirect:  The logging output mode is off.
...
which gives less clear output for some subcommands.

OTOH, it's explicit about whether boolean values are on or off.

The new text seems to have been chosen to match the set/show help texts:
...
(gdb) help show logging
Show logging options.

List of show logging subcommands:

show logging debugredirect -- Show the logging debug output mode.
show logging file -- Show the current logfile.
show logging overwrite -- \
  Show whether logging overwrites or appends to the log file.
show logging redirect -- Show the logging output mode.
...

Make the show logging messages more clear, while still keep the boolean
values explicit, such that we have:
...
$ ./gdb.sh -q -batch -ex "show logging"
logging debugredirect:  off: \
  Debug output will go to both the screen and the log file.
logging enabled:  off: Logging is disabled.
logging file:  The current logfile is "gdb.txt".
logging overwrite:  off: Logging appends to the log file.
logging redirect:  off: Output will go to both the screen and the log file.
...

Tested on x86_64-linux.

An earlier patch of mine, commit 64b7cc50 ("Remove
gdb_print_host_address") inadvertently changed a function in
gdbtypes.c to use printf rather than printf_filtered.  This patch
fixes the problem.

Simon and Tom pointed out that page-logging.exp failed on their
machines.  Tom tracked this down to the "width" setting.  Since
there's no need in the test to change the width, it seems simplest to
remove the setting.  I confirmed that the test still fails if the fix
is backed out, ensuring that the test is still testing what it
purports to.

I noticed that the AdaCore tree had a small divergence in eval.c -- it
had a fix for an indentation problem in binop_promote.  I'm checking
in this small fix as obvious.

When running test-case gdb.threads/schedlock-thread-exit.exp on a system with
system compiler gcc 4.8.5, I run into:
...
src/gdb/testsuite/gdb.threads/schedlock-thread-exit.c:33:3: error: \
  'for' loop initial declarations are only allowed in C99 mode
...

Fix this by:
- using -std=c99, or
- using -std=gnu99, in case that's required, or
- in the case of the jit test-cases, rewriting the for loops.

Tested on x86_64-linux, both with gcc 4.8.5 and gcc 7.5.0.

Commit 6c265988 ("gdb: add back declarations for _initialize
functions") modified copying.c, but not copying.awk.  This patch
updates copying.awk to backport the appropriate fix.  This way, if
copying.awk is run again, it will create the correct output.

I'm checking this in as obvious.

print_i387_ext mostly uses filtered output, but one call in the middle
of the function uses the _unfiltered form.  This patch fixes this
call.  I'm checking this in as obvious.

The result of running etc/update-copyright.py --this-year, fixing all
the files whose mode is changed by the script, plus a build with
--enable-maintainer-mode --enable-cgen-maint=yes, then checking
out */po/*.pot which we don't update frequently.

The copy of cgen was with commit d1dd5fcc38ead reverted as that commit
breaks building of bfp opcodes files.

These are almost entirely unused.  For the very few places using them,
replace with explicit signed types.  This matches what was done in the
common sim code.

This doesn't fix all the problems, but grabs a bunch of the more
obvious ones.

The regex it uses does not like so many leading spaces which causes
it to think the files lack copyright.  Trim them down so the script
can find & update them accordingly.

The sim testsuite was reorganized last year, so update the path.

Move the 64-bit bfd logic out of bfd/configure.ac and into bfd64.m4
under config so it can be shared between all the other subdirs.

This replaces want64 with enable_64_bit_bfd which was already being
declared, but not used directly.

This commit updates the copyright year range in the script
gdb/testsuite/gdb.arch/powerpc-power10.exp. The update was
performed by running gdb/copyright.py again, to make sure
that the copyright year range will be automatically updated
in years forward.

The copyright year and holder line is slight malformed, missing
a space after a comma, and this is sufficient for gdb's
copyright.py script to miss this file during its automated
copyright year update.

This commit fixes this.

Add gdb/syscalls/update-netbsd.sh to the reminder printed
at the end of the execution listing all the files where
a manual update of the copyright header is needed. This
scripts contains some inline code which includes a copyright
header.

This commit updates the copyright year in some files where
we have a copyright year outside of the copyright year,
and thus are not included in gdb's copyright.py script.

This commit brings all the changes made by running gdb/copyright.py
as per GDB's Start of New Year Procedure.

For the avoidance of doubt, all changes in this commits were
performed by the script.

This commit changes the copyright year printed by gdb, gdbserver
and gdbreplay when printing the tool's version.

Squash another totally useless fuzz report that I should have ignored.

	* read.c (next_char_of_string): Avoid integer overflow.

	* mach-o.c (bfd_mach_o_read_section_32): Limit alignment further.
	(bfd_mach_o_read_section_64): Likewise.

9223371018427387904 * 2 cannot be represented in type 'long', yes, but
we don't care.

	* expr.c (expr): Avoid signed overflow.

sec->output_section will be NULL when objcopy removes sections.

	* coff-rs6000.c (_bfd_xcoff_copy_private_bfd_data): Protect against
	objcopy removing sections.

	* elf.c (assign_file_positions_for_non_load_sections): Avoid
	signed integer overflow.

The idea of this patch is to make it easy to see which targets (just
sparc) have ELF_MINPAGESIZE != ELF_COMMONPAGESIZE.

	* elf32-arm.c (ELF_MINPAGESIZE): Don't define.
	* elf32-metag.c: Likewise.
	* elfnn-aarch64.c: Likewise.
	* elf64-x86-64.c: Likewise.  Also don't redefine a bunch of other
	macros for l1om elf64-target.h use that are unchanged from default.

	* testsuite/ld-x86-64/x86-64.exp: Pass options to linker with
	"-Wl,".

avr_io_reg_read_command is an ordinary gdb command, and so should not
be calling reinitialize_more_filter.  This patch removes it.  I'm
checking this in as obvious.  Tested by rebuilding.

	* elf32-i386.c (check_relocs_failed): Moved to ...
	* elfxx-x86.h (check_relocs_failed): Here.  New.
	* elf64-x86-64.c (check_relocs_failed): Removed.

	* elf32-i386.c: Don't include "elf/i386.h".
	(X86_PCREL_TYPE_P): Removed.
	(X86_SIZE_TYPE_P): Likewise.
	(elf_i386_check_relocs): Pass false to NEED_DYNAMIC_RELOCATION_P.
	(elf_i386_relocate_section): Pass false to
	GENERATE_DYNAMIC_RELOCATION_P and COPY_INPUT_RELOC_P.
	* elf64-x86-64.c: Don't include "elf/x86-64.h".
	(X86_PCREL_TYPE_P): Removed.
	(X86_SIZE_TYPE_P): Likewise.
	(elf_x86_64_check_relocs): Pass true to NEED_DYNAMIC_RELOCATION_P
	and X86_PCREL_TYPE_P.
	(elf_x86_64_relocate_section): Pass true to X86_PCREL_TYPE_P,
	X86_SIZE_TYPE_P, GENERATE_DYNAMIC_RELOCATION_P and
	COPY_INPUT_RELOC_P.
	* elfxx-x86.c: Don't include "elf/i386.h" nor "elf/x86-64.h".
	* elfxx-x86.h (X86_64_PCREL_TYPE_P): New.
	(I386_PCREL_TYPE_P): Likewise.
	(X86_PCREL_TYPE_P): Likewise.
	(X86_64_SIZE_TYPE_P): Likewise.
	(I386_SIZE_TYPE_P): Likewise.
	(X86_SIZE_TYPE_P): Likewise.
	(NEED_DYNAMIC_RELOCATION_P): Add IS_X86_64 and pass it to
	X86_PCREL_TYPE_P.
	(COPY_INPUT_RELOC_P): Likewise.
	(GENERATE_DYNAMIC_RELOCATION_P): Add IS_X86_64, pass it to
	X86_PCREL_TYPE_P and X86_SIZE_TYPE_P.

COFF_WITH_pex64 and COFF_WITH_peAArch64 can't be true at the same time.
That means that two conditionals that control the sorting of the .pdata section
became a falsum.

The testsuite doesn't catch this because the linker does the sorting and to link
you require library support from the unwinder so we can't test from binutils in
isolation.

bfd/ChangeLog:

2021-12-31  Tamar Christina  <tamar.christina@arm.com>

	PR ld/28682
	* peXXigen.c: Fix conditional.

"show" command callbacks, like most ordinary gdb commands, should use
filtered output.  I found a few that did not, so this patch changes
them to use the filtered form.

I happened to notice that one "show" callback was printing to
gdb_stdout rather than to the passed-in ui_file parameter.  I went
through all such callbacks and fixed them to consistently use the
ui_file.

Regression tested on x86-64 Fedora 34.

When MI debugging is enabled, the logging output should be sent to
gdb_stdlog.  This is part of PR gdb/7233.

Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=7233

This changes index-cache.c to use debug_prefixed_printf_cond_nofunc.
As a side effect, logs are now written to gdb_stdlog.  This is part of
PR gdb/7233.

Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=7233