Glibc uses 'void *' instead of 'char *'.
And the prototype is declared in <sys/cachectl.h>.
......
$ syscall='cacheflush';
$ ret='int';
$ find glibc/ -type f -name '*.h' \
|xargs pcregrep -Mn "(?s)^[\w\s]*${ret}\s*${syscall}\s*\(.*?;";
glibc/sysdeps/unix/sysv/linux/nios2/sys/cachectl.h:27:
extern int cacheflush (void *__addr, const int __nbytes, const int __op) __THROW;
glibc/sysdeps/unix/sysv/linux/mips/sys/cachectl.h:35:
extern int cacheflush (void *__addr, const int __nbytes, const int __op) __THROW;
glibc/sysdeps/unix/sysv/linux/arc/sys/cachectl.h:30:
extern int cacheflush (void *__addr, int __nbytes, int __op) __THROW;
glibc/sysdeps/unix/sysv/linux/csky/sys/cachectl.h:30:
extern int cacheflush (void *__addr, const int __nbytes,
const int __op) __THROW;
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Expand the epoll_wait() page with epoll_pwait2(), an epoll_wait()
variant that takes a struct timespec to enable nanosecond
resolution timeout.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
A file descriptor is an int so it should be stored through an int
pointer while parent_tid should have the same type as child_tid
which is pid_t pointer.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
A more detailed notice is on realloc(3p).
......
$ man 3p realloc \
|sed -n \
-e '/APPLICATION USAGE/,/^$/p' \
-e '/FUTURE DIRECTIONS/,/^$/p';
APPLICATION USAGE
The description of realloc() has been modified from pre‐
vious versions of this standard to align with the
ISO/IEC 9899:1999 standard. Previous versions explicitly
permitted a call to realloc(p, 0) to free the space
pointed to by p and return a null pointer. While this be‐
havior could be interpreted as permitted by this version
of the standard, the C language committee have indicated
that this interpretation is incorrect. Applications
should assume that if realloc() returns a null pointer,
the space pointed to by p has not been freed. Since this
could lead to double-frees, implementations should also
set errno if a null pointer actually indicates a failure,
and applications should only free the space if errno was
changed.
FUTURE DIRECTIONS
This standard defers to the ISO C standard. While that
standard currently has language that might permit real‐
loc(p, 0), where p is not a null pointer, to free p while
still returning a null pointer, the committee responsible
for that standard is considering clarifying the language
to explicitly prohibit that alternative.
Bug: 211039 <https://bugzilla.kernel.org/show_bug.cgi?id=211039>
Reported-by: Johannes Pfister <johannes.pfister@josttech.ch>
Cc: libc-alpha@sourceware.org
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
.PP are redundant just after .SH or .SS.
Remove them.
$ find man? -type f \
|xargs sed -i '/^\.S[HS]/{n;/\.PP/d}';
Plus a couple manual edits.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This is implied in every other manual page. There is no need to
state it explicitly in these pages.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Fix a glitch in commit ff91beca5b.
Reported-by: Alejandro Colomar (man-pages) <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
.PP and .IP are redundant just before .SH or .SS.
Remove them.
$ find man? -type f \
|xargs sed -i '/^\.[IP]P$/{N;s/.*\n\(\.S[HS]\)/\1/}';
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Since kernel commit a280d6dc77eb
("ipc/sem: introduce semctl(SEM_STAT_ANY)"),
it only skips read access check when using SEM_STAT_ANY command.
And it should use the semid_ds struct instead of seminfo struct.
Fix this.
Signed-off-by: Yang Xu <xuyang2018.jy@cn.fujitsu.com>
Acked-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Alejandro Colomar