Pádraig Brady [Sat, 12 Aug 2023 10:21:50 +0000 (11:21 +0100)]
maint: allow use of printf C99 integer size specifiers
Older systems that had issues with these like HP-UX and Solaris 8
are now obsolete, and can easily apply patches to provide support.
Also we've used %td since coreutils 9.1, with no reported issues.
* cfg.mk (sc_prohibit-c99-printf-format): Remove to allow use of
%[jtz] size specifiers, which allows for cleaner code
by avoiding the need to cast to PRI?MAX etc.
Pádraig Brady [Fri, 11 Aug 2023 13:27:59 +0000 (14:27 +0100)]
doc: separate out description of 2038 time stamp change
* NEWS: Separate out the description of the _existing_ issues
with outputting timestamps on 32 bit systems, from _future_ issues
outputting timestamps on all systems. Also move this to the
"improvement" section, since it's not really a coreutils
specific issue, and also is a build time configurable option.
Paul Eggert [Fri, 4 Aug 2023 01:35:29 +0000 (18:35 -0700)]
maint: Update after gnulib module 'readutmp' changed
(This patch is coauthored with Bruno Haible,
with original version at <https://bugs.gnu.org/64937#>.)
This updates the gnulib submodule to latest.
For year-2038 safety on Linux/{x86,arm},
this adds an --enable-systemd option to ‘configure’.
The idea is that this sort of thing will become the default
after it has been tested more.
* configure.ac: Don't test whether struct utmp and struct utmpx
have the ut_host field; this is now done in gnulib's readutmp module.
* src/local.mk: Link the programs 'pinky', 'uptime', 'users',
'who' with $(READUTMP_LIB).
* src/pinky.c, src/who.c:
Test HAVE_STRUCT_XTMP_UT_HOST instead of HAVE_UT_HOST.
* src/pinky.c (print_entry):
* src/who.c (print_user, print_deadprocs, print_login)
(print_initspawn, scan_entries):
Support the situation where ut_line is a 'char *' rather than a
'char[]' of fixed size. Likewise for ut_user and ut_host.
(make_id_equals_comment): Likewise for ut_id.
* src/pinky.c (print_entry):
* src/who.c (print_user):
Open /dev to simplify looking up its entries.
Don’t use printf if the output might in theory be longer than INT_MAX.
* src/pinky.c (scan_entries, short_pinky):
* src/uptime.c (print_uptime, uptime):
* src/users.c (list_entries_users, users):
* src/who.c (who):
Use idx_t where new read_utmp needs it.
* src/system.h (STREQ_LEN): Add comment that last arg can be -1.
Paul Eggert [Wed, 2 Aug 2023 13:51:55 +0000 (06:51 -0700)]
uptime: fix Y5881633 bug
* src/uptime.c (print_uptime): Prefer signed types.
Fix unlikely bug on platforms with 32-bit long and 64-bit time_t
if the idle time exceeds 2**31 days (about 6 million years...).
Dragan Simic [Tue, 1 Aug 2023 09:07:41 +0000 (11:07 +0200)]
cut: promptly diagnose write errors, continued
* src/cut.c: Complete the error-handling improvements started in
commit e0a4a60af5, by adding a couple of remaining checks for putchar().
While there, sprinkle a few rather useful comments, and perform a few
small code cleanups, to make the code and the comments more uniform
and more conformant to the official coding style. Also make the help
message slightly more uniform.
Pádraig Brady [Tue, 1 Aug 2023 12:30:02 +0000 (13:30 +0100)]
od: fix issues with recent format string changes
* src/ioblksize.h: Avoid syntax check with redundant idx.h inclusion.
* src/od.c (FMT_BYTES_ALLOCATED): Increase by two to avoid:
error: '%s' directive writing between 1 and 2 bytes into a region
of size between 1 and 4 [-Werror=format-overflow=]
(maint): Use %td to print idx_t rather than invalid %jt format.
Paul Eggert [Tue, 1 Aug 2023 00:51:03 +0000 (17:51 -0700)]
pinky: prefer signed types
* src/pinky.c (idle_string): Prefer intmax_t to unsigned long int;
this avoids an overflow on platforms where unsigned long is 32
bits and time_t is 64 bits (the bug could occur on such a system
that was idle for more than 6 million years, so it’s a bit
hard to supply a test case...).
Paul Eggert [Tue, 1 Aug 2023 00:46:15 +0000 (17:46 -0700)]
numfmt: prefer signed types
* src/numfmt.c (suffix_power_char, powerld, expld)
(simple_strtod_int, double_to_human, prepare_padded_number)
(process_suffixed_number): Prefer signed types.
(process_suffixed_number): Fix an unlikely bug if an
arg has exactly 2**32 spaces at the start.
Paul Eggert [Mon, 31 Jul 2023 23:38:02 +0000 (16:38 -0700)]
kill: prefer signed types
* src/kill.c (list_signals):
Prefer signed types. This avoids undefined behavior on
theoretical platforms where unsigned and signed int have
different representations.
Paul Eggert [Mon, 31 Jul 2023 23:33:38 +0000 (16:33 -0700)]
od: prefer signed types
* src/od.c: Include stdckdint.h.
(bytes_to_oct_digits, bytes_to_signed_dec_digits)
(bytes_to_unsigned_dec_digits, bytes_to_hex_digits):
Use ‘char’ for these small constants.
(simple_strtoi): Rename from simple_strtoul. Convert to int
instead of unsigned long; that’s good enough. All uses changed.
Simplify by using ckd_mul and ckd_add to check for overflow.
(main): Prefer signed types to unsigned.
Paul Eggert [Mon, 31 Jul 2023 23:30:24 +0000 (16:30 -0700)]
cksum,df,digest: prefer signed types
* src/cksum.c (main):
* src/df.c (decode_output_arg):
* src/digest.c (valid_digits):
Prefer idx_t to unsigned types when the value is an index
into an array.
Paul Eggert [Mon, 31 Jul 2023 20:43:19 +0000 (13:43 -0700)]
factor: prefer signed types
When it’s easy, prefer signed types to unsigned, as
they are less confusing and allow overflow checking.
* src/factor.c (struct mp_factors, udiv_qrnnd)
(count_leading_zeros, count_trailing_zeros)
(factor_insert_multiplicity, mp_factor_clear, mp_factor_insert)
(factor_insert_refind, factor_using_division)
(mp_factor_using_division, powm2, millerrabin, millerrabin2)
(mp_millerrabin, prime_p, prime2_p, mp_prime_p, isqrt, isqrt2)
(invtab, q_freq, factor_using_squfof, strto2uintmax)
(print_factors_single, main):
Prefer signed integers to unsigned.
Paul Eggert [Mon, 31 Jul 2023 18:21:25 +0000 (11:21 -0700)]
who: fix only-theoretical overflow
Change stzncpy’s implementation to match its comment, in the case
where SRC + LEN would overflow. This case never happens in coreutils.
* src/system.h (stzncpy): Work even if SRC + LEN would overflow.
Paul Eggert [Sat, 22 Jul 2023 20:39:17 +0000 (13:39 -0700)]
mv: better diagnostic for 'mv dir x' failure
Problem reported by Nir Oren <https://bugs.gnu.org/64785>.
* src/copy.c (copy_internal): Use a more-specific diagnostic when
a rename fails due to a problem that must be due to the
destination, avoiding user confusion in cases like 'mv dir x'
where x is a nonempty directory.
* tests/mv/dir2dir.sh: Adjust to match.
tail -n/-c +NUM, is different from tail -n/-c NUM,
and head -n/-c NUM, and head -n/c -NUM, in that it
specifies a 1 based index rather than a count to skip/include.
So clarify this in tail --help and tail info manual.
Note we also mention this gotcha at:
https://www.pixelbeat.org/docs/coreutils-gotchas.html#tail
* doc/coreutils.texi (tail invocation): Give examples for -c/-n +NUM,
to make it clear one has to specify a number 1 larger than
might be expected.
* src/tail.c (usage): State the skip at start edge case more clearly
in the -n description. -c is not often used with tail so we leave
full explanation of that to the info manual. Also split the string
to simplify translation.
* tests/split/l-chunk.sh: Move the "expensive" portion to ...
* tests/split/l-chunk-root.sh: .. A new test split from l-chunk.sh
which uses an isolated TMPDIR, rather than exhausting /tmp,
as that gives false positive failures with some other coreutils tests
like tac-2-nonseekable.sh and shuf-reservoir.sh at least.
* tests/local.mk: Reference the new test.
* bootstrap.conf: Depend on tmpdir rather than tmpfile,
as the standard tmpfile() doesn't honor $TMPDIR.
* src/split.c (copy_to_tmpfile): Adjust to call temp_stream() rather
than tmpfile();
* NEWS: Mention the improvement.
This also refactors temp_stream() to its own module,
in preparation for use by split.
* src/tac.c: Refactor temp_stream() out to ...
* src/temp-stream.c: ... A new module mostly refactored from tac,
but uses tmpdir to more robustly support $TMPDIR,
while falling back to /tmp if not available.
* src/temp-stream.h: The new module interface.
* src/local.mk: Reference the new module from tac.
* tests/tac/tac.pl: Adjust to non failing missing $TMPDIR.
* po/POTFILES.in: Reference the new module with translatable strings.
* NEWS: Mention the user visible improvements to tac TMPDIR handling.
* src/join.c (prjoin): Check for write errors after each line.
* tests/misc/write-errors.sh: enable the test for join.
* NEWS: Mention the improvement.
* src/comm.c (writeline): Simplify by removing the unneeded STREAM
parameter. Call write_error() upon ferror().
(compare_files): Adjust to simplified writeline().
* tests/misc/write-errors.sh: Enable comm test.
* NEWS: Mention the improvement.
* src/cut.c (cut_bytes): Diagnose errors from fwrite() and putchar().
(cut_fields): Likewise.
* tests/misc/write-errors.sh: Enable the test for cut,
and augment to cover both cut_bytes() and cut_fields().
* NEWS: Mention the improvement.
* src/uniq.c (write_line): Check the output from fwrite() immediately.
(check_file): Likewise.
* tests/misc/write-errors.sh: Enable the test case.
* NEWS: Mention the improvement.
* src/od.c (dump): Check for write errors after each block written,
to exit early even with large / unbounded inputs.
* tests/misc/write-errors.sh: enable od check.
* NEWS: Mention the improvement.
Fixes https://bugs.gnu.org/64540
* cfg.mk (sc_some_programs_must_avoid_exit_failure): Adjust to
avoid false positive.
(sc_prohibit_exit_write_error): A new syntax check to prohibit
open coding error(..., "write error"); instead directing to use...
* src/system.h (write_error): ... a new function to clear stdout errors
before we explicitly diagnose a write error and exit.
* src/basenc.c: Use write_error() to ensure no repeated diagnostics.
* src/cat.c: Likewise.
* src/expand.c: Likewise.
* src/factor.c: Likewise.
* src/paste.c: Likewise.
* src/seq.c: Likewise.
* src/shuf.c: Likewise.
* src/split.c: Likewise.
* src/tail.c: Likewise.
* src/tr.c: Likewise.
* src/unexpand.c: Likewise.
* tests/misc/write-errors.sh: Remove TODOs for the fixed utilities:
expand, factor, paste, shuf, tr, unexpand.
* src/digest.c (problematic_chars): This recently introduced
function does not modify state so is pure, even though GCC 13.1 at least
did not warn about that attribute being appropriate.
cksum: escape filenames with a leading '\' in --check status
* src/digest.c (digest_check): Also escape in the case that the
file name contains '\'.
* tests/cksum/md5sum-bsd.sh: Add a test case.
* doc/coreutils.texi (md5um invocation): Clarify escaping operation.
* NEWS: Mention the bug fix.
Fixes https://bugs.gnu.org/64392
cksum: support transparent emulation of older utils
Support -b, --binary, and -t, --text
to allow full emulation of older utilities with:
exec cksum -a $algo --untagged "$@"
Note this would diverge from OpenBSD's support of cksum -b.
* src/digest.c: Change -b to mean --binary, not --base64 in all cases.
Accept -b and -t in all cases. Keep --binary and --text undocumented
for cksum.
* tests/cksum/cksum-base64.pl: s/-b/--base64/.
* tests/cksum/cksum-a.sh: Ensure cksum supports -b and -t appropriately.
* NEWS: Mention the change in behavior.
Paul Eggert [Sat, 1 Jul 2023 18:31:41 +0000 (11:31 -0700)]
maint: prefer ckd_add to INT_ADD_WRAPV etc
* bootstrap.conf (gnulib_modules): Add stdckdint.
Also, in C source code, prefer C23 macros like ckd_add
to their Gnulib near-equivalents like INT_ADD_WRAPV.
Include <stdckdint.h> as needed.
Paul Eggert [Sat, 1 Jul 2023 18:31:41 +0000 (11:31 -0700)]
who: don’t crash if clock gyrates
* src/who.c (idle_string): Avoid signed integer overflow
if the superuser messes with the clock in bizarre ways.
Remove an ‘assume’ that wasn’t correct under this scenario.
Paul Eggert [Sat, 1 Jul 2023 18:31:40 +0000 (11:31 -0700)]
maint: pacify GCC bug#109613 better
* src/cut.c (cut_file):
* src/nl.c (nl_file): Pacify GCC Bug#109613 in a better way, by
narrowing the coverage of the ‘assume’ so that bugs in the
no-longer-covered part are not masked.
Paul Eggert [Sat, 1 Jul 2023 18:31:40 +0000 (11:31 -0700)]
maint: stop pacifying Parfait
* src/fmt.c (get_paragraph):
* src/stty.c (display_changed, display_all): Omit calls to
‘assume’ that are present only to pacify false positives by Parfait
<https://labs.oracle.com/pls/apex/f?p=94065:12:17236785746387:13>,
which went in-house in 2012 and never came back.
Paul Eggert [Sat, 1 Jul 2023 18:31:40 +0000 (11:31 -0700)]
maint: go back to using ‘error’
Now that Gnulib’s ‘error’ module does proper static checking
for not returning, we need no longer use the ‘die’ macro.
This makes code easier to read for people that are used to ‘error’.
* cfg.mk (error_fns, exclude_file_name_regexp): Remove ‘die’.
(sc_die_EXIT_FAILURE): Remove.
* src/die.h: Remove. All includes removed. All calls to ‘die’
changed back to calls to ‘error’.
* src/install.c (get_ids): Use quoteaf (problem found with
make syntax-check).
* src/system.h: Include error.h, since some of our macros call ‘error’.
Stop including error.h elsewhere.
Paul Eggert [Sat, 1 Jul 2023 18:31:40 +0000 (11:31 -0700)]
maint: improve static and dynamic checking
This modernizes the source code somewhat, to take advantage
of advances in GCC over the years, and Gnulib’s ‘assure’ module.
Include assure.h in files that now need it.
Do not include assert.h directly; it’s no longer needed.
* bootstrap.conf (gnulib_modules): Add ‘assure’.
* gl/lib/randread.c (randread_error):
* src/chmod.c (describe_change):
* src/chown-core.c (describe_change):
* src/cp.c (decode_preserve_arg):
* src/head.c (diagnose_copy_fd_failure):
* src/ls.c (parse_ls_color):
* src/od.c (decode_one_format):
* src/split.c (main):
* src/test.c (binary_operator, posixtest):
Prefer affirm to abort, since it has better diagnostics in the
normal case and better performance with -DNDEBUG.
* gl/lib/xdectoint.c, src/die.h: Include stddef.h, for unreachable.
* gl/lib/xdectoint.c: Do not include verify.h; no longer needed.
* gl/lib/xdectoint.c (__xnumtoint):
* src/die.h (die):
Prefer C23 unreachable () to assume (false).
* gl/lib/xfts.c (xfts_open):
* src/basenc.c (base32hex_encode):
* src/copy.c (abandon_move, copy_internal, valid_options):
* src/cut.c (cut_fields):
* src/df.c (alloc_field, decode_output_arg, get_dev):
* src/du.c (process_file, main):
* src/echo.c (usage):
* src/factor.c (udiv_qrnnd, mod2, gcd2_odd, factor_insert_large)
(mulredc2, factor_using_pollard_rho, isqrt2, div_smallq)
(factor_using_squfof):
* src/iopoll.c (iopoll_internal, fwrite_wait):
* src/join.c (add_field):
* src/ls.c (dev_ino_pop, main, gobble_file, sort_files):
* src/mv.c (do_move):
* src/od.c (decode_format_string, read_block, dump, main):
* src/remove.c (rm):
* src/rm.c (main):
* src/sort.c (stream_open):
* src/split.c (next_file_name, lines_chunk_split):
* src/stdbuf.c (main):
* src/stty.c (set_speed):
* src/tac-pipe.c (line_ptr_decrement, line_ptr_increment):
* src/touch.c (touch):
* src/tr.c (find_bracketed_repeat, get_next)
(validate_case_classes, get_spec_stats, string2_extend, main):
* src/tsort.c (search_item, tsort):
* src/wc.c (main):
Prefer affirm to assert, as it allows for better static
checking when compiling with -DNDEBUG.
* src/chown-core.c (change_file_owner):
* src/df.c (get_field_list):
* src/expr.c (printv, null, tostring, toarith, eval2):
* src/ls.c (time_type_to_statx, calc_req_mask, get_funky_string)
(print_long_format):
* src/numfmt.c (simple_strtod_fatal):
* src/od.c (decode_one_format):
* src/stty.c (mode_type_flag):
* src/tail.c (xlseek):
* src/tr.c (is_char_class_member, get_next, get_spec_stats)
(string2_extend):
Prefer unreachable () to abort () or assert (false) when merely
pacifying the compiler, e.g., in a switch statement on an enum
where all cases are covered.
* src/copy.c (valid_options): Now returns void; the bool was useless.
Caller no longer needs to assert.
* src/csplit.c (find_line):
* src/expand-common.c (next_file):
* src/shred.c (incname):
* src/sort.c (main):
* src/tr.c (append_normal_char, append_range, append_char_class)
(append_repeated_char, append_equiv_class):
* src/tsort.c (search_item):
Omit assert, since the hardware will check for us.
* src/df.c (header_mode): Now the enum type it should have been.
* src/du.c (process_file):
* src/ls.c (assert_matching_dev_ino):
* src/tail.c (valid_file_spec):
* src/tr.c (validate_case_classes):
Mark defns with MAYBE_UNUSED if they’re not used when -DNDEBUG.
* src/factor.c (prime_p, prime2_p, mp_prime_p): Now ATTRIBUTE_PURE.
Prefer affirm to error+abort. No need to translate this diagnostic.
* src/fmt.c (get_paragraph):
* src/stty.c (display_changed, display_all, sane_mode):
* src/who.c (idle_string):
Prefer assume to assert, since the goal is merely pacification
and assert doesn’t pacify anyway if -DNDEBUG is used.
* src/join.c (decode_field_spec):
Omit unreachable abort.
* src/ls.c (assert_matching_dev_ino, main):
* src/tr.c (get_next):
Prefer assure to assert, since the check is relatively expensive
and won’t help static analysis.
* src/ls.c (main):
Prefer static_assert to assert of a constant expression.
(format_inode): Redo to make it clear that buflen doesn’t matter,
and that buf must have a certain number of bytes. All callers changed.
This pacifies -Wformat-overflow.
* src/od.c (decode_one_format):
Omit an assert that tested for obviously undefined behavior,
as the compiler could optimize it away anyway.
* src/od.c (decode_one_format, decode_format_string):
Prefer ATTRIBUTE_NONNULL to runtime checking.
* src/stat.c: Do not include <stddef.h> since system.h does that now.
* src/sync.c (sync_arg):
Prefer unreachable () to assert (true), which was a typo.
* src/system.h: Include stddef.h, for unreachable.
* src/tail.c (xlseek): Simplify by relying on ‘error’ to exit.
Pádraig Brady [Thu, 22 Jun 2023 20:33:58 +0000 (21:33 +0100)]
b2sum: fix UAR with --check with malformed checksum lines
* src/digest.c (split_3): Reinstate the check for whitespace after the
digest portion of the line, so that we exit early before inspecting
the file name which would be outside the passed buffer in the case
where the input does not contain a newline.
* tests/cksum/b2sum.sh: Add a test case.
* NEWS: Mention the bug fix.
* THANKS.in: Add Frank Busse who has reported multiple bugs using KLEE.
Fixes https://bugs.gnu.org/64229
Pádraig Brady [Wed, 14 Jun 2023 23:53:54 +0000 (00:53 +0100)]
doc: mention cksum error fix with cpu feature checks changes
* NEWS: Mention the error message to aid those searching
for solutions to the issue, and mention cksum also
as that was confirmed to fix the error with the adjusted
cpu feature detection, as discussed at https://bugs.debian.org/1037264
* src/cksum.c: Cleanup syntax-check failure from previous commit.
Paul Eggert [Wed, 14 Jun 2023 21:52:37 +0000 (14:52 -0700)]
cksum,wc: clean up hw capability checking
* src/cksum.c (cksum_pclmul) [!CRCTAB && !USE_PCLMUL_CRC32]:
Remove macro.
(cksum_fp): No longer file-scope.
(pclmul_supported): Define only if USE_PCLMUL_CRC32.
This omits the debug output "using generic hardware support"
for simplicity and consistency with wc’s output.
(crc_sum_stream) [!USE_PCLMUL_32]: No need for static function pointer.
* src/wc.c (wc_lines_p) [USE_AVX2_WC_LINECOUNT]: No longer file-scope.
(wc) [USE_AVX2_WC_LINECOUNT]: Check for avx2 support at most once,
which was surely the code’s original intent.
(wc) [!USE_AVX2_WC_LINECOUNT]: No need for static function pointer.
Paul Eggert [Wed, 14 Jun 2023 21:13:35 +0000 (14:13 -0700)]
cksum: fix bug in check for cksum_pclmul
This fixes a typo in the previous patch.
Problem reported by Pádraig Brady <https://bugs.gnu.org/64058#11>.
* src/cksum.c (pclmul_supported): Also require AVX support
to use cksum_pclmul.
Paul Eggert [Wed, 14 Jun 2023 04:10:24 +0000 (21:10 -0700)]
wc: port to kernels that disable XSAVE YMM
Problem reported by Dave Hansen <https://bugs.gnu.org/64058>.
Apply similar change to cksum and pclmul, too.
* NEWS: Mention wc fix.
* configure.ac (cpuid_exists, get_cpuid_count_exists):
Remove. All uses removed, since we no longer use __get_cpuid or
__get_cpuid_count.
(pclmul_intrinsic_exists, avx2_intrinsic_exists): Set to no if
__builtin_cpu_supports calls cannot be compiled.
(HAVE_PCLMUL_INTRINSIC, HAVE_AVX2_INTRINSIC): Remove; unused.
Simplify surrounding code because of this.
* src/cksum.c (pclmul_supported):
* src/wc.c (avx2_supported):
Use __builtin_cpu_supports instead of doing it by hand.
Simplify surrounding code because of this.
Ville Skyttä [Mon, 12 Jun 2023 20:27:37 +0000 (23:27 +0300)]
dircolors: update list of backup file extensions
* src/dircolors.hin: Sort backup section by extension.
Treat .dpkg-new and .dpkg-tmp as backup files.
Treat .crdownload (Chromium based browsers' partial download)
as a backup file.
Pádraig Brady [Sat, 10 Jun 2023 13:18:00 +0000 (14:18 +0100)]
dd: fix parsing of numbers with more than two multipliers
* src/dd.c (parse_integer): Use recursion to support more than two
multipliers. Also protect suffix[-1] access to ensure we don't
inspect before the passed string.
* tests/dd/bytes.sh: Add test cases.
* doc/coreutils.texi (dd invocation): Note the support for specifying
many multipliers in a number.
* NEWS: Mention the bug fix.
Fixes https://bugs.debian.org/1037275
Pádraig Brady [Thu, 8 Jun 2023 09:58:10 +0000 (10:58 +0100)]
doc: od --strings: clarify operation
* doc/coreutils.texi (od invocation): Remove mention of ASCII,
as all printable characters in unibyte locales are output.
* src/od.c (usage): Clarify that only NUL terminated strings
are displayed, and that it's printable chars, not only graphic chars
that are output. I.e., spaces are output also if part of the string.
Reported at https://bugs.ddebian.org/1037217
Pádraig Brady [Wed, 7 Jun 2023 12:42:36 +0000 (13:42 +0100)]
ls: display command line symlinks that return ELOOP
* src/ls.c (gobble_file): Ensure we lstat() a symlink
specified on the command line, if we receive ELOOP from stat().
* tests/ls/symlink-loop.sh: Add a new test.
* tests/local.mk: Reference the new test.
* NEWS: Mention the bug fix.
Fixes https://bugs.gnu.org/63931
Pádraig Brady [Wed, 7 Jun 2023 11:32:46 +0000 (12:32 +0100)]
ls: use more standard symlink traversal
* src/ls.c (gobble_file): stat() symlinks directly,
rather than their targets. This will be more consistent
with how symlinks are generally accessed.
(make_link_name): Remove no longer used function.
Addresses https://bugs.gnu.org/63931
Pádraig Brady [Tue, 6 Jun 2023 10:12:28 +0000 (11:12 +0100)]
doc: NEWS: mention the more defensive copy_file_range avoidance
* NEWS: Mention the improvement in reinstating runtime avoidance
of copy_file_range(), that came with the last gnulib update,
picking up gnulib commit fb034b35.
Pádraig Brady [Wed, 31 May 2023 16:21:08 +0000 (17:21 +0100)]
maint: adjust code to handle "error" syntax-check changes
* src/dd.c: Don't include no longer used error.h.
Use quoteaf() rather than quote() to quote appropriate for the shell
and to avoid the syntax-check failure,
* src/stty.c: Use quoteaf() rather than quotef()
to have more consistent quoting of the invalid arg.
Pádraig Brady [Wed, 31 May 2023 16:12:52 +0000 (17:12 +0100)]
maint: augment syntax checks to cater for more "error" functions
src/cfg.mk (sc_error_quotes, sc_error_shell_quotes,
sc_error_shell_always_quotes): Include "die" and "diagnose"
in the class of error functions to check arguments for.
Paul Eggert [Tue, 30 May 2023 21:24:46 +0000 (14:24 -0700)]
dd: fix ‘error’ name issue without macros
* src/dd.c (_GL_NO_INLINE_ERROR): Remove; no longer needed.
(diagnose): Rename from nl_error and omit first arg since it is
always zero. All uses changed.
(error): Remove macro.
Pádraig Brady [Fri, 19 May 2023 21:16:22 +0000 (22:16 +0100)]
build: modernize bootstrap prerequsite tools
Following on from commit v9.0-15-gaa31b919c
which updated README-prereq...
* bootstrap.conf: Add an explicit requirement on m4.
Add an explicit requirement on texi2pdf which is often
packaged separately to makeinfo and induces a failure
far down the distribution phase if not present.
Replace the rsync dependency with wget,
which gnulib changed to in 2018.
This reverts commit 800c86d5, as that was deemed too invasive.
We do keep the change to tee.c to allow using -O3 without warnings.
For other optimization options like -O0, -Og, -O1, -Os,
one can use WERROR_CFLAGS= to stop warnings inducing a build failure.
Pádraig Brady [Thu, 18 May 2023 09:38:11 +0000 (10:38 +0100)]
build: avoid false -Wmaybe-uninitialized warnings
Allow easily building a debug build for example with:
make CFLAGS='-O0 -ggdb'
False -Wmaybe-uninitialized warnings hit in different
places depending on the compiler passes used.
These changes were tested with gcc 10.2.1, 12.2.1, and 13.1.1 like:
for o in g s z fast 0 1 2 3; do
make clean && make -j$(nproc) CFLAGS="-O$o" || break
done
* src/digest.c: Disable -Wmaybe-uninitialized that gives
false positive here at -O0.
* src/ln.c: Avoid -Wmaybe-uninitialized that gives
false positive here at -O1.
* src/pr.c: Likewise.
* src/sort.c: Likewise.
* src/tee.c: Avoid -Wmaybe-uninitialized that gives
false positive here at -O3 on gcc 13.1.1 at least.
* src/cp.c: Avoid -Wmaybe-uninitialized that gives
false positive here at -Os on gcc 13.1.1 at least.
* src/copy.c: Avoid -Wmaybe-uninitialized that gives
false positive here at -Og on gcc 13.1.1 at least.
* src/head.c: Likewise.
* src/paste.c: Likewise.
Tested on gcc 13.1.1 with: make CFLAGS='-O0 -ggdb'
* configure.ac: Disable -Wstringop-overflow for gnulib.
This warning is far too problematic in my experience:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88443
and triggers with gcc -O0 with versions 12,13 at least.