| Commit message (Collapse) | Author | Age | Files | Lines |
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Macros will automatically use the correct types, without
having to fiddle with internal glibc macros. It's also
impossible to get the types wrong due to aliasing because
support_check_stat_fd and support_check_stat_path do not
depend on the struct stat* types.
The changes reveal some inconsistencies in tests.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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Resolves: BZ # 31411
References:
https://iso639-3.sil.org/code/ltg
https://en.wikipedia.org/wiki/Latgalian_language
https://github.com/unicode-org/cldr/blob/main/common/main/ltg.xml
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Delay setting file->decided until the data has been successfully loaded
by _nl_load_locale(). If the function fails to load the data then we
must return and error and leave decided untouched to allow the caller to
attempt to load the data again at a later time. We should not set
decided to 1 early in the function since doing so may prevent attempting
to load it again. We want to try loading it again because that allows an
open to fail and set errno correctly.
On the other side of this problem is that if we are called again with
the same inputs we will fetch the cached version of the object and carry
out no open syscalls and that fails to set errno so we must set errno to
ENOENT in that case. There is a second code path that has to be handled
where the name of the locale matches but the codeset doesn't match.
These changes ensure that errno is correctly set on failure in all the
return paths in _nl_find_locale().
Adds tst-locale-loadlocale to cover the bug.
No regressions on x86_64.
Co-authored-by: Jeff Law <law@redhat.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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Protect the global locale from being modified while we compute the size of
the locale category names. That allows the use of the global locale in a
single thread, while all other threads use the thread safe locale
functions.
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Related: BZ # 19956
References:
https://iso639-3.sil.org/code/ssy
https://en.wikipedia.org/wiki/Saho_language
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Related: BZ # 19479
References:
https://iso639-3.sil.org/code/gbm
https://en.wikipedia.org/wiki/Garhwali_language
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Resolves: BZ # 27163
References:
https://iso639-3.sil.org/code/glk
https://en.wikipedia.org/wiki/Gilaki_language
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Sort Makefile variables using scrips/sort-makefile-lines.py.
No regressions on x86_64.
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Resolves: BZ # 12908
https://iso639-3.sil.org/code/zgh
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I've updated copyright dates in glibc for 2024. This is the patch for
the changes not generated by scripts/update-copyrights and subsequent
build / regeneration of generated files.
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All the crypt related functions, cryptographic algorithms, and
make requirements are removed, with only the exception of md5
implementation which is moved to locale folder since it is
required by localedef for integrity protection (libc's
locale-reading code does not check these, but localedef does
generate them).
Besides thec code itself, both internal documentation and the
manual is also adjusted. This allows to remove both --enable-crypt
and --enable-nss-crypt configure options.
Checked with a build for all affected ABIs.
Co-authored-by: Zack Weinberg <zack@owlfolio.org>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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Fix unused result warnings, detected when _FORTIFY_SOURCE is enabled in
glibc.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
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Since asprintf is called "if (mask & XPG_NORM_CODESET)" there is no
point in checking the mask again within the asprintf call.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
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They are both used by __libc_freeres to free all library malloc
allocated resources to help tooling like mtrace or valgrind with
memory leak tracking.
The current scheme uses assembly markers and linker script entries
to consolidate the free routine function pointers in the RELRO segment
and to be freed buffers in BSS.
This patch changes it to use specific free functions for
libc_freeres_ptrs buffers and call the function pointer array directly
with call_function_static_weak.
It allows the removal of both the internal macros and the linker
script sections.
Checked on x86_64-linux-gnu, i686-linux-gnu, and aarch64-linux-gnu.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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C2x adds binary integer constants starting with 0b or 0B, and supports
those constants in strtol-family functions when the base passed is 0
or 2. Implement that strtol support for glibc.
As discussed at
<https://sourceware.org/pipermail/libc-alpha/2020-December/120414.html>,
this is incompatible with previous C standard versions, in that such
an input string starting with 0b or 0B was previously required to be
parsed as 0 (with the rest of the string unprocessed). Thus, as
proposed there, this patch adds 20 new __isoc23_* functions with
appropriate header redirection support. This patch does *not* do
anything about scanf %i (which will need 12 new functions per long
double variant, so 12, 24 or 36 depending on the glibc configuration),
instead leaving that for a future patch. The function names would
remain as __isoc23_* even if C2x ends up published in 2024 rather than
2023.
Making this change leads to the question of what should happen to
internal uses of these functions in glibc and its tests. The header
redirection (which applies for _GNU_SOURCE or any other feature test
macros enabling C2x features) has the effect of redirecting internal
uses but without those uses then ending up at a hidden alias (see the
comment in include/stdio.h about interaction with libc_hidden_proto).
It seems desirable for the default for internal uses to be the same
versions used by normal code using _GNU_SOURCE, so rather than doing
anything to disable that redirection, similar macro definitions to
those in include/stdio.h are added to the include/ headers for the new
functions.
Given that the default for uses in glibc is for the redirections to
apply, the next question is whether the C2x semantics are correct for
all those uses. Uses with the base fixed to 10, 16 or any other value
other than 0 or 2 can be ignored. I think this leaves the following
internal uses to consider (an important consideration for review of
this patch will be both whether this list is complete and whether my
conclusions on all entries in it are correct):
benchtests/bench-malloc-simple.c
benchtests/bench-string.h
elf/sotruss-lib.c
math/libm-test-support.c
nptl/perf.c
nscd/nscd_conf.c
nss/nss_files/files-parse.c
posix/tst-fnmatch.c
posix/wordexp.c
resolv/inet_addr.c
rt/tst-mqueue7.c
soft-fp/testit.c
stdlib/fmtmsg.c
support/support_test_main.c
support/test-container.c
sysdeps/pthread/tst-mutex10.c
I think all of these places are OK with the new semantics, except for
resolv/inet_addr.c, where the POSIX semantics of inet_addr do not
allow for binary constants; thus, I changed that file (to use
__strtoul_internal, whose semantics are unchanged) and added a test
for this case. In the case of posix/wordexp.c I think accepting
binary constants is OK since POSIX explicitly allows additional forms
of shell arithmetic expressions, and in stdlib/fmtmsg.c SEV_LEVEL is
not in POSIX so again I think accepting binary constants is OK.
Functions such as __strtol_internal, which are only exported for
compatibility with old binaries from when those were used in inline
functions in headers, have unchanged semantics; the __*_l_internal
versions (purely internal to libc and not exported) have a new
argument to specify whether to accept binary constants.
As well as for the standard functions, the header redirection also
applies to the *_l versions (GNU extensions), and to legacy functions
such as strtoq, to avoid confusing inconsistency (the *q functions
redirect to __isoc23_*ll rather than needing their own __isoc23_*
entry points). For the functions that are only declared with
_GNU_SOURCE, this means the old versions are no longer available for
normal user programs at all. An internal __GLIBC_USE_C2X_STRTOL macro
is used to control the redirections in the headers, and cases in glibc
that wish to avoid the redirections - the function implementations
themselves and the tests of the old versions of the GNU functions -
then undefine and redefine that macro to allow the old versions to be
accessed. (There would of course be greater complexity should we wish
to make any of the old versions into compat symbols / avoid them being
defined at all for new glibc ABIs.)
strtol_l.c has some similarity to strtol.c in gnulib, but has already
diverged some way (and isn't listed at all at
https://sourceware.org/glibc/wiki/SharedSourceFiles unlike strtoll.c
and strtoul.c); I haven't made any attempts at gnulib compatibility in
the changes to that file.
I note incidentally that inttypes.h and wchar.h are missing the
__nonnull present on declarations of this family of functions in
stdlib.h; I didn't make any changes in that regard for the new
declarations added.
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The buffer used by snprintf might not be large enough for all possible
inputs, as indicated by gcc with -O1:
../locale/programs/linereader.c: In function ‘utf8_sequence_error’:
../locale/programs/linereader.c:713:58: error: ‘%02x’ directive output
may be truncated writing between 2 and 8 bytes into a region of size
between 1 and 13 [-Werror=format-truncation=]
713 | snprintf (buf, sizeof (buf), "0x%02x 0x%02x 0x%02x 0x%02x",
| ^~~~
../locale/programs/linereader.c:713:34: note: directive argument in the
range [0, 2147483647]
713 | snprintf (buf, sizeof (buf), "0x%02x 0x%02x 0x%02x 0x%02x",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../locale/programs/linereader.c:713:5: note: ‘snprintf’ output between
20 and 38 bytes into a destination of size 30
713 | snprintf (buf, sizeof (buf), "0x%02x 0x%02x 0x%02x 0x%02x",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
714 | ch1, ch2, ch3, ch4);
| ~~~~~~~~~~~~~~~~~~~
Checked on x86_64-linux-gnu.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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I've updated copyright dates in glibc for 2023. This is the patch for
the changes not generated by scripts/update-copyrights and subsequent
build / regeneration of generated files.
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For some reason this causes a pre-commit check error for a copyright
date update commit, even though that commit doesn't touch anything
near the line with this whitespace.
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Fixes following error when building with -Os:
| In file included from strcoll_l.c:43:
| strcoll_l.c: In function '__strcoll_l':
| ../locale/weight.h:31:26: error: 'seq2.back_us' may be used
uninitialized in this function [-Werror=maybe-uninitialized]
| int_fast32_t i = table[*(*cpp)++];
| ^~~~~~~~~
| strcoll_l.c:304:18: note: 'seq2.back_us' was declared here
| coll_seq seq1, seq2;
| ^~~~
| In file included from strcoll_l.c:43:
| ../locale/weight.h:31:26: error: 'seq1.back_us' may be used
uninitialized in this function [-Werror=maybe-uninitialized]
| int_fast32_t i = table[*(*cpp)++];
| ^~~~~~~~~
| strcoll_l.c:304:12: note: 'seq1.back_us' was declared here
| coll_seq seq1, seq2;
| ^~~~
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
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The Z modifier is a nonstandard synonymn for z (that predates z
itself) and compiler might issue an warning for in invalid
conversion specifier.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
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The locale generation are issues in parallel to try speed locale
generation. The maximum number of jobs are limited to the online
CPU (in hope to not overcommit on environments with lower cores
than tests).
On a Ryzen 9, the test execution improves from ~6.7s to ~1.4s.
Tested-by: Mark Wielaard <mark@klomp.org>
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Fixes commit b15538d77c6a7893c8bb42831dcd3a1a12b727d4
("locale: localdef input files are now encoded in UTF-8").
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Previously, they were assumed to be in ISO-8859-1, and that the output
charset overlapped with ISO-8859-1 for the characters actually used.
However, this did not work as intended on many architectures even for
an ISO-8859-1 output encoding because of the char signedness bug in
lr_getc. Therefore, this commit switches to UTF-8 without making
provisions for backwards compatibility.
The following Elisp code can be used to convert locale definition files
to UTF-8:
(defun glibc/convert-localedef (from to)
(interactive "r")
(save-excursion
(save-restriction
(narrow-to-region from to)
(goto-char (point-min))
(save-match-data
(while (re-search-forward "<U\\([0-9a-fA-F]+\\)>" nil t)
(let* ((codepoint (string-to-number (match-string 1) 16))
(converted
(cond
((memq codepoint '(?/ ?\ ?< ?>))
(string ?/ codepoint))
((= codepoint ?\") "<U0022>")
(t (string codepoint)))))
(replace-match converted t)))))))
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
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This will permit reusing the Unicode character processing for
different character encodings, not just the current <U...> encoding.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
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The array lr->buf contains characters, which can be signed. A 0xff
byte in the input could be incorrectly reported as EOF. More
importantly, get_string in linereader.c converts a signed input byte
to a Unicode code point using ADDWC ((uint32_t) ch), under the
assumption that this decodes the ISO-8859-1 input encoding. If char
is signed, this does not give the correct result. This means that
ISO-8859-1 input files for localedef are not actually supported,
contrary to the comment in get_string. This is a happy accident because
we can therefore change the file encoding to UTF-8 without impacting
backwards compatibility.
While at it, remove the \32 check for MS-DOS end-of-file character (^Z).
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
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And introduce struct lr_buffer. The functions addc and adds can
be called from functions, enabling subsequent refactoring.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
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This data will be used in number formatting.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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This avoids an alias violation later. This commit also fixes
an incorrect double-checked locking idiom in _nl_init_era_entries.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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We can call the cleanup functions directly from _nl_unload_locale
if we pass the category to it.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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The function performs the same steps for ld_archive locales
(mapped from an archive), and this code is not performance-critical,
so the specialization does not add value.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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On 32-bit machines this has no affect. On 64-bit machines
{u}int_fast{16|32} are set as {u}int64_t which is often not
ideal. Particularly x86_64 this change both saves code size and
may save instruction cost.
Full xcheck passes on x86_64.
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Resolves: BZ #27781
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Checked on x86_64-linux-gnu and i686-linux-gnu.
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Effective 2022-01-20 via SIL request 2021-043 the identifier "tok"
is now active for Toki Pona in the code set for ISO 639-3.
References:
https://iso639-3.sil.org/code/tok
https://iso639-3.sil.org/sites/iso639-3/files/change_requests/2021/2021-043.pdf
No regressions on x86_64.
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ISO C17, POSIX Issue 7, and ISO 30112 all allow the char*
types to be empty strings i.e. "", integer or char values to
be -1 or CHAR_MAX respectively, with the exception of
decimal_point which must be non-empty in ISO C. Note that
the defaults for mon_grouping vary, but are functionaly
equivalent e.g. "\177" (no further grouping reuqired) vs.
"" (no grouping defined for all groups).
We include a broad comment talking about harmonizing ISO C,
POSIX, ISO 30112, and the default C/POSIX locale for glibc.
We reorder all setting based on locale/categories.def order.
We soften all missing definitions from errors to warnings when
defaults exist.
Given that ISO C, POSIX and ISO 30112 allow the empty string
we change LC_MONETARY handling of mon_decimal_point to allow
the empty string. If mon_decimal_point is not defined at all
then we pick the existing legacy glibc default value of
<U002E> i.e. ".".
We also set the default for mon_thousands_sep_wc at the
same time as mon_thousands_sep, but this is not a change in
behaviour, it is always either a matching value or L'\0',
but if in the future we change the default to a non-empty
string we would need to update both at the same time.
Tested on x86_64 and i686 without regressions.
Tested with install-locale-archive target.
Tested with install-locale-files target.
Reviewed-by: DJ Delorie <dj@redhat.com>
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Whenever locale data for any locale included symbolic links, localedef
would throw the error "incomplete set of locale files" and exclude it
from the generated locale archive. This commit fixes that.
Co-authored-by: Florian Weimer <fweimer@redhat.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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The handling of mon_decimal_point is incorrect when it comes to
handling the empty "" value. The existing parser in monetary_read()
will correctly handle setting the non-wide-character value and the
wide-character value e.g. STR_ELEM_WC(mon_decimal_point) if they are
set in the locale definition. However, in monetary_finish() we have
conflicting TEST_ELEM() which sets a default value (if the locale
definition doesn't include one), and subsequent code which looks for
mon_decimal_point to be NULL to issue a specific error message and set
the defaults. The latter is unused because TEST_ELEM() always sets a
default. The simplest solution is to remove the TEST_ELEM() check,
and allow the existing check to look to see if mon_decimal_point is
NULL and set an appropriate default. The final fix is to move the
setting of mon_decimal_point_wc so it occurs only when
mon_decimal_point is being set to a default, keeping both values
consistent. There is no way to tell the difference between
mon_decimal_point_wc having been set to the empty string and not
having been defined at all, for that distinction we must use
mon_decimal_point being NULL or "", and so we must logically set
the default together with mon_decimal_point.
Lastly, there are more fixes similar to this that could be made to
ld-monetary.c, but we avoid that in order to fix just the code
required for mon_decimal_point, which impacts the ability for C.UTF-8
to set mon_decimal_point to "", since without this fix we end up with
an inconsistent setting of mon_decimal_point set to "", but
mon_decimal_point_wc set to "." which is incorrect.
Tested on x86_64 and i686 without regression.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
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These were updated simply by running "make" to regen the files.
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I've updated copyright dates in glibc for 2022. This is the patch for
the changes not generated by scripts/update-copyrights and subsequent
build / regeneration of generated files. As well as the usual annual
updates, mainly dates in --version output (minus csu/version.c which
previously had to be handled manually but is now successfully updated
by update-copyrights), there is a small change to the copyright notice
in NEWS which should let NEWS get updated automatically next year.
Please remember to include 2022 in the dates for any new files added
in future (which means updating any existing uncommitted patches you
have that add new files to use the new copyright dates in them).
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I used these shell commands:
../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")
and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 7061 files FOO.
I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah. I don't
know why I run into these diagnostics whereas others evidently do not.
remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
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localedef currently blindly trust the archive header. When passed an
archive file with the wrong endianess, this leads to a segmentation
fault:
$ localedef --big-endian --list-archive /usr/lib/locale/locale-archive
Segmentation fault (core dumped)
When passed non-archive files, asserts are reported on the best case,
but sometimes it can lead to a segmentation fault:
$ localedef --list-archive /bin/true
localedef: programs/locarchive.c:1643: show_archive_content: Assertion `used < GET (head->namehash_used)' failed.
Aborted (core dumped)
$ localedef --list-archive /usr/lib/locale/C.utf8/LC_COLLATE
Segmentation fault (core dumped)
This patch improves the user experience by looking at the magic value,
which is always written, but never checked. It should still be possible
to trigger a segmentation fault with crafted files, but this already
catch many cases.
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Support a new directive 'codepoint_collation' in the LC_COLLATE
section of a locale source file. This new directive causes all
collation rules to be dropped and instead STRCMP (strcmp or
wcscmp) is used for collation of the input character set. This
is required to allow for a C.UTF-8 that contains zero collation
rules (minimal size) and sorts using code point sorting.
To date the only implementation of a locale with zero collation
rules is the C/POSIX locale. The C/POSIX locale provides
identity tables for _NL_COLLATE_COLLSEQMB and
_NL_COLLATE_COLLSEQWC that map to ASCII even though it has zero
rules. This has lead to existing fnmatch, regexec, and regcomp
implementations that require these tables. It is not correct
to use these tables when nrules == 0, but the conservative fix
is to provide these tables when nrules == 0. This assures that
existing static applications using a new C.UTF-8 locale with
'codepoint_collation' at least have functional range expressions
with ASCII e.g. [0-9] or [a-z]. Such static applications would
not have the fixes to fnmatch, regexec and regcomp that avoid
the use of the tables when nrules == 0. Future fixes to fnmatch,
regexec, and regcomp would allow range expressions to use the
full set of code points for such ranges.
Tested on x86_64 and i686 without regression.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
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We stopped adding "Contributed by" or similar lines in sources in 2012
in favour of git logs and keeping the Contributors section of the
glibc manual up to date. Removing these lines makes the license
header a bit more consistent across files and also removes the
possibility of error in attribution when license blocks or files are
copied across since the contributed-by lines don't actually reflect
reality in those cases.
Move all "Contributed by" and similar lines (Written by, Test by,
etc.) into a new file CONTRIBUTED-BY to retain record of these
contributions. These contributors are also mentioned in
manual/contrib.texi, so we just maintain this additional record as a
courtesy to the earlier developers.
The following scripts were used to filter a list of files to edit in
place and to clean up the CONTRIBUTED-BY file respectively. These
were not added to the glibc sources because they're not expected to be
of any use in future given that this is a one time task:
https://gist.github.com/siddhesh/b5ecac94eabfd72ed2916d6d8157e7dc
https://gist.github.com/siddhesh/15ea1f5e435ace9774f485030695ee02
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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For the legacy ABI with supports 32-bit time_t it calls the 64-bit
time directly, since the LFS symbols calls the 64-bit time_t ones
internally.
Checked on i686-linux-gnu and x86_64-linux-gnu.
Reviewed-by: Lukasz Majewski <lukma@denx.de>
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Fix trivial leak identified by coverity. The program runs to exit and
the leak doesn't grow, but it's just cleaner to free the allocated
memory.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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