This makes the tests the same in both places. The changes in Gnulib
brought in by this patch also silence -Woverflow when using gcc 16.1.1
on i686.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
The cve.mitre.org site is an archive that redirects users to cve.org.
The linked about page has also been removed, so this patch changes it to
reference the current equivalent on cve.org.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
GCC warns about this with -Wshift-negative-value:
In file included from ../sysdeps/x86/cpu-features.c:24:
../sysdeps/x86/dl-cacheinfo.h: In function ‘get_common_cache_info’:
../sysdeps/x86/dl-cacheinfo.h:913:45: warning: left shift of negative value [-Wshift-negative-value]
913 | count_mask = ~(-1 << (count_mask + 1));
| ^~
../sysdeps/x86/dl-cacheinfo.h:930:45: warning: left shift of negative value [-Wshift-negative-value]
930 | count_mask = ~(-1 << (count_mask + 1));
| ^~
This is because C23 § 6.5.8 specifies that this is undefined behavior.
We can cast it to unsigned which would be equivelent to UINT_MAX.
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Make XOPEN2K24 checks the same as XOPEN2K8 using the following command:
$ find conform -name '*.h-data' | xargs sed -i \
-e 's| !defined XOPEN2K8| !defined XOPEN2K8 \&\& !defined XOPEN2K24|g' \
-e 's| defined XOPEN2K8| defined XOPEN2K8 \|\| defined XOPEN2K24|g' \
-e 's|ifdef XOPEN2K8|if defined XOPEN2K8 \|\| defined XOPEN2K24|g' \
-e 's|ifndef XOPEN2K8|if !defined XOPEN2K8 \&\& !defined XOPEN2K24|g'
Reviewed-by: Yury Khrustalev <yury.khrustalev@arm.com>
Make POSIX.1-2024 checks the same as POSIX.1-2008 using the following
command:
$ find conform -name '*.h-data' | xargs sed -i \
-e 's| !defined POSIX2008| !defined POSIX2008 \&\& !defined POSIX2024|g' \
-e 's| defined POSIX2008| defined POSIX2008 \|\| defined POSIX2024|g' \
-e 's|ifdef POSIX2008|if defined POSIX2008 \|\| defined POSIX2024|g' \
-e 's|ifndef POSIX2008|if !defined POSIX2008 \&\& !defined POSIX2024|g'
Reviewed-by: Yury Khrustalev <yury.khrustalev@arm.com>
The cast doesn't have any benefit over using a UL suffix and prevents
the macro from being used in preprocessor directives.
Reviewed-by: Arjun Shankar <arjun@redhat.com>
Commit 33eff78c8b caused issues in nbdkit
which had code similar to this to get the last line of the file:
while (getline (&line, &len, fp) != -1)
;
/* Process LINE. */
After that commit, line[0] would be equal to '\0' instead of containing
the last line of the file like before that commit. A recent POSIX issue
clarified that the behavior before and after that commit are allowed,
since the contents of LINE are unspecified after -1 is returned
[1]. However, some programs rely on the previous behavior.
This patch null terminates the buffer upon getdelim/getline's initial
allocation. This is compatible with previous glibc versions, while also
protecting the caller from reading uninitialized memory if the file is
empty, as long as getline/getdelim does the initial allocation.
[1] https://www.austingroupbugs.net/bug_view_page.php?bug_id=1953
Suggested-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Update to latest text from Gnulib commit
08f579c56d81cf78c60fcd3568190f97e6e7f684, file doc/lgpl-2.1.texi.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
* include/features.h (_POSIX_C_SOURCE): Document the value of 202405L
for POSIX.1-2024. Set it to 202405L when _GNU_SOURCE or _DEFAULT_SOURCE
is defined.
(_XOPEN_SOURCE): Document the value of 800 for POSIX-1.2024. Set it to
800 when _GNU_SOURCE is defined.
(__USE_XOPEN2K24, __USE_XOPEN2K24XSI): New internal macros. Set them
when _POSIX_C_SOURCE is 202405L or greater and/or when _XOPEN_SOURCE is
800 or greater.
* manual/creature.texi (Feature Test Macros): Document the new values
for _POSIX_C_SOURCE and _XOPEN_SOURCE.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Signed-off-by: Collin Funk <collin.funk1@gmail.com>
In commit 970364dac0 we switched some
/*FALLTHROUGH*/ comments to [[fallthrough]] to avoid warnings with
Clang. However, since gperf emitted different output the buildbot
failed. The buildbot has been updated to use gperf 3.3 which will use
__attribute__ ((__fallthrough__)) where needed to avoid warnings [1].
This patch regenerates these files with the same version.
[1] https://sourceware.org/pipermail/libc-testresults/2025q4/014123.html
Reviewed-by: Mark Wielaard <mark@klomp.org>
Since SSIZE_MAX is less than UINT_MAX on 32-bit platforms we must AND
the expression with SSIZE_MAX.
Tested on x86_64 and x86.
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* posix/glob.c (__glob): Strip trailing slashes before the recursive
call, so it is not called for every slash in the pattern.
* posix/tst-glob-bz30635.c: Add two test cases that would previously
segmentation fault. The first test has many trailing slashes and the
second has many slashes following a wildcard character.
* posix/Makefile (tests): Add the new test.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
POSIX requires that the buffer used by getdelim/getline add a
terminating NUL whenever an EOF is read.
* libio/iogetdelim.c (__getdelim): Add a NUL byte when the first
__underflow is called.
* libio/tst-getdelim.c (do_test): Add a test case for the bug.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
* manual/socket.texi (Out-of-Band Data): Check the atmark variable which
is set by the ioctl instead of the undefined result variable.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
When compiling on x86_64 with -Wshift-overflow=2 you can see the
following warning:
../sysdeps/ieee754/flt-32/math_config.h: In function ‘is_inf’:
../sysdeps/ieee754/flt-32/math_config.h:184:37: warning: result of ‘2139095040 << 1’ requires 33 bits to represent, but ‘int’ only has 32 bits [-Wshift-overflow=]
184 | return (x << 1) == (EXPONENT_MASK << 1);
| ^~
This patch adjusts the definitions to use UINT32_C. This matches the
definitions in sysdeps/ieee754/dbl-64/math_config.h which use UINT64_C
for these definitions.
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Previously this file failed to compile with the following errors:
$ gcc manual/examples/inetcli.c
manual/examples/inetcli.c: In function ‘write_to_server’:
manual/examples/inetcli.c:36:37: error: implicit declaration of function ‘strlen’ [-Wimplicit-function-declaration]
36 | nbytes = write (filedes, MESSAGE, strlen (MESSAGE) + 1);
| ^~~~~~
manual/examples/inetcli.c:26:1: note: include ‘<string.h>’ or provide a declaration of ‘strlen’
25 | #include <netdb.h>
+++ |+#include <string.h>
26 |
manual/examples/inetcli.c:36:37: warning: incompatible implicit declaration of built-in function ‘strlen’ [-Wbuiltin-declaration-mismatch]
36 | nbytes = write (filedes, MESSAGE, strlen (MESSAGE) + 1);
| ^~~~~~
manual/examples/inetcli.c:36:37: note: include ‘<string.h>’ or provide a declaration of ‘strlen’
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Previously this file failed to compile with the following errors:
$ gcc manual/examples/inetsrv.c
manual/examples/inetsrv.c: In function ‘main’:
manual/examples/inetsrv.c:97:31: error: passing argument 3 of ‘accept’ from incompatible pointer type [-Wincompatible-pointer-types]
97 | &size);
| ^~~~~
| |
| size_t * {aka long unsigned int *}
In file included from manual/examples/inetsrv.c:23:
/usr/include/sys/socket.h:307:42: note: expected ‘socklen_t * restrict’ {aka ‘unsigned int * restrict’} but argument is of type ‘size_t *’ {aka ‘long unsigned int *’}
307 | socklen_t *__restrict __addr_len);
| ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~
manual/examples/inetsrv.c:105:26: error: implicit declaration of function ‘inet_ntoa’ [-Wimplicit-function-declaration]
105 | inet_ntoa (clientname.sin_addr),
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Previously this file failed to compile with the following errors:
$ gcc manual/examples/filesrv.c
manual/examples/filesrv.c: In function ‘main’:
manual/examples/filesrv.c:37:3: error: implicit declaration of function ‘unlink’ [-Wimplicit-function-declaration]
37 | unlink (SERVER);
| ^~~~~~
manual/examples/filesrv.c:40:10: error: implicit declaration of function ‘make_named_socket’ [-Wimplicit-function-declaration]
40 | sock = make_named_socket (SERVER);
| ^~~~~~~~~~~~~~~~~
manual/examples/filesrv.c:46:54: error: passing argument 6 of ‘recvfrom’ from incompatible pointer type [-Wincompatible-pointer-types]
46 | (struct sockaddr *) & name, &size);
| ^~~~~
| |
| size_t * {aka long unsigned int *}
In file included from manual/examples/filesrv.c:21:
/usr/include/sys/socket.h:165:48: note: expected ‘socklen_t * restrict’ {aka ‘unsigned int * restrict’} but argument is of type ‘size_t *’ {aka ‘long unsigned int *’}
165 | socklen_t *__restrict __addr_len);
| ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~
This patch fixes the missing declaration for unlink and uses
'socklen_t *' for the fourth argument of recv from. The
make_named_socket function is defined in the manual.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Without _GNU_SOURCE defined this file fails to compile with the
following error:
$ gcc manual/examples/select.c
manual/examples/select.c: In function ‘input_timeout’:
manual/examples/select.c:44:10: error: implicit declaration of function ‘TEMP_FAILURE_RETRY’ [-Wimplicit-function-declaration]
44 | return TEMP_FAILURE_RETRY (select (FD_SETSIZE,
| ^~~~~~~~~~~~~~~~~~
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Previously this file would fail to compile with the following error:
$ gcc manual/examples/setjmp.c
manual/examples/setjmp.c: In function ‘main’:
manual/examples/setjmp.c:37:7: error: implicit declaration of function ‘do_command’ [-Wimplicit-function-declaration]
37 | do_command ();
| ^~~~~~~~~~
manual/examples/setjmp.c: At top level:
manual/examples/setjmp.c:42:1: warning: conflicting types for ‘do_command’; have ‘void(void)’
42 | do_command (void)
| ^~~~~~~~~~
manual/examples/setjmp.c:37:7: note: previous implicit declaration of ‘do_command’ with type ‘void(void)’
37 | do_command ();
| ^~~~~~~~~~
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Previously this file would fail to compile with the following error:
$ gcc manual/examples/sigh1.c
manual/examples/sigh1.c: In function ‘main’:
manual/examples/sigh1.c:46:3: error: implicit declaration of function ‘alarm’ [-Wimplicit-function-declaration]
46 | alarm (2);
| ^~~~~
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Without _GNU_SOURCE defined this file fails to compile with the
following error:
$ gcc manual/examples/strdupa.c
manual/examples/strdupa.c: In function ‘main’:
manual/examples/strdupa.c:27:19: error: implicit declaration of function ‘strdupa’; did you mean ‘strdup’? [-Wimplicit-function-declaration]
27 | char *wr_path = strdupa (path);
| ^~~~~~~
| strdup
manual/examples/strdupa.c:27:19: error: initialization of ‘char *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
GCC 15 turned -Wincompatible-pointer-types into a compiler error instead
of a warning by default. This patch prevents the following error:
$ gcc manual/examples/subopt.c
manual/examples/subopt.c: In function ‘main’:
manual/examples/subopt.c:64:40: error: passing argument 2 of ‘getsubopt’ from incompatible pointer type [-Wincompatible-pointer-types]
64 | switch (getsubopt (&subopts, mount_opts, &value))
| ^~~~~~~~~~
| |
| const char **
In file included from manual/examples/subopt.c:19:
/usr/include/stdlib.h:1100:47: note: expected ‘char * const* restrict’ but argument is of type ‘const char **’
1100 | char *const *__restrict __tokens,
| ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Previously this file would fail to compile with the following error:
$ gcc manual/examples/memopen.c
manual/examples/memopen.c: In function ‘main’:
manual/examples/memopen.c:28:30: error: implicit declaration of function ‘strlen’ [-Wimplicit-function-declaration]
28 | stream = fmemopen (buffer, strlen (buffer), "r");
| ^~~~~~
manual/examples/memopen.c:19:1: note: include ‘<string.h>’ or provide a declaration of ‘strlen’
18 | #include <stdio.h>
+++ |+#include <string.h>
19 |
manual/examples/memopen.c:28:30: warning: incompatible implicit declaration of built-in function ‘strlen’ [-Wbuiltin-declaration-mismatch]
28 | stream = fmemopen (buffer, strlen (buffer), "r");
| ^~~~~~
manual/examples/memopen.c:28:30: note: include ‘<string.h>’ or provide a declaration of ‘strlen’
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Without _GNU_SOURCE defined this file fails to compile with the
following error:
$ gcc manual/examples/twalk.c
manual/examples/twalk.c: In function ‘twalk’:
manual/examples/twalk.c:55:3: error: implicit declaration of function ‘twalk_r’; did you mean ‘twalk’? [-Wimplicit-function-declaration]
55 | twalk_r (root, twalk_with_twalk_r_action, &closure);
| ^~~~~~~
| twalk
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Previously this file would fail to compile with the following error:
$ gcc manual/examples/sigusr.c
manual/examples/sigusr.c: In function ‘child_function’:
manual/examples/sigusr.c:46:3: error: implicit declaration of function ‘exit’ [-Wimplicit-function-declaration]
46 | exit (0);
| ^~~~
manual/examples/sigusr.c:23:1: note: include ‘<stdlib.h>’ or provide a declaration of ‘exit’
22 | #include <unistd.h>
+++ |+#include <stdlib.h>
23 | /*@end group*/
manual/examples/sigusr.c:46:3: warning: incompatible implicit declaration of built-in function ‘exit’ [-Wbuiltin-declaration-mismatch]
46 | exit (0);
| ^~~~
manual/examples/sigusr.c:46:3: note: include ‘<stdlib.h>’ or provide a declaration of ‘exit’
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Previously this file would fail to compile with the following error:
$ gcc manual/examples/mbstouwcs.c
manual/examples/mbstouwcs.c: In function ‘mbstouwcs’:
manual/examples/mbstouwcs.c:34:11: error: ‘errno’ undeclared (first use in this function)
34 | errno = EILSEQ;
| ^~~~~
manual/examples/mbstouwcs.c:5:1: note: ‘errno’ is defined in header ‘<errno.h>’; this is probably fixable by adding ‘#include <errno.h>’
4 | #include <wchar.h>
+++ |+#include <errno.h>
5 |
manual/examples/mbstouwcs.c:34:11: note: each undeclared identifier is reported only once for each function it appears in
34 | errno = EILSEQ;
| ^~~~~
manual/examples/mbstouwcs.c:34:19: error: ‘EILSEQ’ undeclared (first use in this function)
34 | errno = EILSEQ;
| ^~~~~~
manual/examples/mbstouwcs.c:47:20: error: implicit declaration of function ‘towupper’ [-Wimplicit-function-declaration]
47 | *wcp++ = towupper (wc);
| ^~~~~~~~
manual/examples/mbstouwcs.c:5:1: note: include ‘<wctype.h>’ or provide a declaration of ‘towupper’
4 | #include <wchar.h>
+++ |+#include <wctype.h>
5 |
manual/examples/mbstouwcs.c:47:20: warning: incompatible implicit declaration of built-in function ‘towupper’ [-Wbuiltin-declaration-mismatch]
47 | *wcp++ = towupper (wc);
| ^~~~~~~~
manual/examples/mbstouwcs.c:47:20: note: include ‘<wctype.h>’ or provide a declaration of ‘towupper’
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Previously this file would fail to compile with the following error:
$ gcc manual/examples/db.c
db.c: In function ‘main’:
db.c:37:7: error: implicit declaration of function ‘printf’ [-Wimplicit-function-declaration]
37 | printf ("Couldn't find out about user %d.\n", (int) me);
| ^~~~~~
db.c:23:1: note: include ‘<stdio.h>’ or provide a declaration of ‘printf’
22 | #include <stdlib.h>
+++ |+#include <stdio.h>
23 |
db.c:37:7: warning: incompatible implicit declaration of built-in function ‘printf’ [-Wbuiltin-declaration-mismatch]
37 | printf ("Couldn't find out about user %d.\n", (int) me);
| ^~~~~~
db.c:37:7: note: include ‘<stdio.h>’ or provide a declaration of ‘printf’
db.c:42:3: warning: incompatible implicit declaration of built-in function ‘printf’ [-Wbuiltin-declaration-mismatch]
42 | printf ("I am %s.\n", my_passwd->pw_gecos);
| ^~~~~~
db.c:42:3: note: include ‘<stdio.h>’ or provide a declaration of ‘printf’
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
The select function, fd_set, and FD_* macros were standardized by POSIX
in the sys/select.h header. They are still defined in sys/types.h if
__USE_MISC is defined, but we should recommend the more portable and
standardized sys/select.h.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
The getsubopt function was an XSI extension since POSIX issue 4 until it
was added to Base in POSIX Issue 7. This also adds the 'restrict'
qualifier to the arguments as done in POSIX.1-2024, and has been the
case in glibc.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Texinfo 7.2 began warning about the '.info' suffix in the manual names
passed to @ref and similar commands. They eventually plan to stop
stripping the '.info' suffix internally which will lead to broken links
in the manuals without this change.
Signed-off-by: Collin Funk <collin.funk1@gmail.com>
Reviewed-by: Sam James <sam@gentoo.org>
When building on GNU/Hurd the following warnings repeat themselves:
../Rules:400: target '/home/collin/obj/glibc/io/test-lfs.out' given more than once in the same rule
../Rules:400: target '/home/collin/obj/glibc/io/test-lfs.out' given more than once in the same rule
This is because commit 73b854e955 (hurd: Mark more memory-hungry tests
as unsupported, 2025-01-12) added it to 'tests-unsupported' even though
it was already added by decf02d382 (hurd: Mark two tests as unsupported,
2023-04-13).
Message-ID: <54dc6bf7e0dbedb1b19356f41fec843c1c523b11.1750130025.git.collin.funk1@gmail.com>
When building on GNU/Hurd warnings like the following occur:
../sysdeps/x86_64/multiarch/strnlen-evex-base.S:53:10: warning: "P2ALIGN" redefined
53 | # define P2ALIGN(...) .p2align 4,, 6
| ^~~~~~~
In file included from /usr/include/x86_64-gnu/mach/x86_64/syscall_sw.h:30,
from ../sysdeps/mach/sysdep.h:21,
from ../sysdeps/mach/x86/sysdep.h:31,
from ../sysdeps/x86_64/multiarch/strnlen-evex-base.S:24:
/usr/include/x86_64-gnu/mach/x86_64/asm.h:78:9: note: this is the location of the previous definition
78 | #define P2ALIGN(p2) .p2align p2 /* gas-specific */
| ^~~~~~~
The fix is to undefine the macro from system headers in sysdep.h so that
it can be properly defined in assembly files where its definition
depends on whether string functions are being compiled for
wide-characters or not.
Message-ID: <721cd3a1bae1a553857db1dd69761a175f611364.1750131904.git.collin.funk1@gmail.com>
* posix/glob.h (glob_pattern_p): Add __nonnull ((1)) since this function
expects a string and does not check for NULL.
Signed-off-by: Collin Funk <collin.funk1@gmail.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* stdio-common/stdio_ext.h (__fbufsize, __freading, __fwriting)
(__freadable, __fwritable, __flbf, __fpurge, __fpending, __fsetlocking):
Add __nonnull ((1)) to these functions since they access the FP without
checking if it is NULL.
Signed-off-by: Collin Funk <collin.funk1@gmail.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
On x86-64 and compiling with -O2 using stdc_leading_zeros compiles to
the bsr instruction. The fls function removed by this patch is inlined
but still loops while checking each bit individually.
* nss/getaddrinfo.c: Include <stdbit.h>.
(fls): Remove function. This function contains a left shift of 31 on an
'int' which is undefined.
(rfc3484_sort): Use stdc_leading_zeros instead of fls.
Signed-off-by: Collin Funk <collin.funk1@gmail.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* manual/stdio.texi (Line Input): Document that getline and getdelim
where GNU extensions until standardized in POSIX.1-2008. Add restrict
to function prototypes.
Signed-off-by: Collin Funk <collin.funk1@gmail.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Hi Joseph,
As we discussed, this patch just makes C23 include every check that is
performed by C11.
I tested the commit by adding the ISO23 Make and Python variables to be
the same as ISO11. So the only difference was compiling with -DISO23
instead of -DISO11. And changed the temporary directories to instead
use the format f'/tmp/glibc-{self.standard}-{self.header}'. Then I used
a shell script to run 'cmp' on each file in the ISO11 and ISO23
directories for each header to make sure they were the same.
-- 8< --
Make C23 checks include every test that is performed by C11. Done by
running the following command:
find conform -name '*.h-data' | xargs sed -i \
-e 's| !defined ISO11| !defined ISO11 \&\& !defined ISO23|g' \
-e 's| defined ISO11| defined ISO11 \|\| defined ISO23|g' \
-e 's|ifdef ISO11|if defined ISO11 \|\| defined ISO23|g' \
-e 's|ifndef ISO11|if !defined ISO11 \&\& !defined ISO23|g'
Signed-off-by: Collin Funk <collin.funk1@gmail.com>
Here is a patch updating the documentation to mention GNU and BSD
extensions that were adopted by POSIX.1-2024.
* manual/llio.texi (Memory-mapped I/O): Add that MAP_ANON and
MAP_ANONYMOUS were added by POSIX.1-2024.
* manual/memory.texi (Changing Block Size): Mention that reallocarray
was added by POSIX.1-2024.
* manual/message.texi (Message Translation): Adjust wording to match
standardization.
(Translation with gettext): Mention the gettext family of functions were
added by POSIX.1-2024.
* manual/pattern.texi (Wildcard Matching): Mention that FNM_CASEFOLD was
added by POSIX.1-2024.
* manual/process.texi (Creating a Process): Mention that _Fork and
WCOREDUMP were added by POSIX.1-2024.
* manual/signal.texi (Miscellaneous Signals): Mention that SIGWINCH was
added by POSIX-1.2024.
* manual/startup.texi (Environment Access): Mention that secure_getenv
was added by POSIX.1-2024.
* manual/string.texi (Truncating Strings): Mention that strlcpy,
strlcat, wcslcpy, and wslcat were added by POSIX-1.2024.
(Search Functions): Document that memmem was added by POSIX-1.2024.
* manual/terminal.texi (Allocation): Mention that ptsname_r was added by
POSIX-1.2024.
* manual/threads.texi (Waiting with Explicit Clocks): Move node under
POSIX Threads. Mention pthread_cond_clockwait,
pthread_rwlock_clockrdlock, and pthread_rwlock_clockwrlock were added by
POSIX-1.2024.
(Joining Threads): New node under Non-POSIX Extensions.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Signed-off-by: Collin Funk <collin.funk1@gmail.com>
Using gcc -Wshift-overflow=2 -Wsystem-headers to compile a file
including <sys/mount.h> will cause a warning since 1 << 31 is undefined
behavior on platforms where int is 32-bits.
Signed-off-by: Collin Funk <collin.funk1@gmail.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Collin Funk