| Age | Commit message (Collapse) | Author | Files | Lines |
|---|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
This is safer than silencing shellcheck(1).
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
In theory, getopts(1) will make sure that no other values arrive here.
However, it's easy to add a check, and that will be safer than silencing
shellcheck(1).
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
We don't need ';;&' since the commit referenced below.
Fixes: 0ba68dd03564 (2024-09-19, 2025-10-29; "bin/grepc, grepc.1: -k: Remove flag")
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
It started as a script in the Linux man-pages project, under scripts/
within scripts/bash_aliases.
Eventually, I turned it into a large script, and moved it into a
separate project, to be able to work on it more freely.
The original scripts were removed from this project in commit
c3752af0549c (2022-11-22; "bash_aliases: Remove grep_syscall(),
grep_syscall_def(), and grep_glibc_prototype()").
Now, grepc(1) has stabilized, and I find it very useful for maintaining
this project (as well as others), so let's merge it back. This will
allow distros to package it sooner than if it remained as a standalone
project.
I've imported the git history (ignoring files we don't care about) with
the help of git-filter-repo(1).
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
It's slightly different than the regex we were using, but I can't see a
reason for it. It was probably due to forgetting to improve this regex.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Files are simpler to handle. It results in less flags, and simpler
command invocations. And it allows breaking the line more nicely,
without having to break in the middle of a quoted region.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
This is currently a (very useful) GNU extension, and soon might become
standard in C2y.
Link: n3394 <https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3394.pdf>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Just behave like grep(1) and pcre2grep(1). If the user wants to see it
more nicely, they can do it themselves.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Fixes: 92dca8e97bfa ("bin/grepc: srcfix (Variables for options hold their '-')")
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Reported-by: terdon <https://linux.codidact.com/users/57088>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
As in pcre2grep(1) and grep(1).
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
This leaves -c unused, so we can add -c with the same meaning of
grep(1): count.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Since 83cfbb6042d1 ("bin/grepc: Optimize"), we color also in ther types
of code. Update the manual page.
Fixes: 83cfbb6042d1 ("bin/grepc: Optimize")
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
To avoid confusion to users of other kernels.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
This ensures we own the file, removing any races.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
These flags are passed to pcre2grep(1).
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
This is to allow adding options that have arguments that are passed to
pcre2grep(1).
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Equivalent to grep(1)'s -h, except that we always default to -H behavior.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
There's already a manual page, and the short help from -h was quite
unhelpful. I want to reuse -h for grep(1)'s meaning (don't print the
filename).
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Use single-letter names for variables that hold command-line options.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
The non-recursive behavior is so slow that it's quite useless. It is
only useful when reading from standard input, but for several files it's
useless. Make '-r' the default when any files are specified, and remove
the flag (since now it's always enabled). This happens to bring back a
behavior close to what we had before
2fb22befdfb9 ("Don't find files recursively").
Non-seekable files can still be read, if redirected to standard input.
Update the example from the manual page to reflect current usage.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Call pcre2grep(1) only once, which allows removing named pipes. This is
an important optimization, and will also allow accepting several file
names in the command line (in a future commit). The source code is also
significantly simplified.
It has a caveat: this single call to pcre2grep(1) will consume more
resources, and will crash on certain input files. The workaround is to
restrict the search to just one or a few types of code. Document this
in the manual page. This caveat only applies to very specific files,
which so far I've only found in the Linux kernel source tree.
|
|
grep only one file (or stdin).
The current implementation doesn't allow filterin standard input, which
I miss some times. I'm removing this feature now, to be able to rewrite
most of the program in a way that allows filtering stdin, and then will
consider adding back a recursive mode if necessary.
Also, don't remove the two blanks at the start of the output, for
consistency when calling this program via xargs(1), which will become
more common now that it only handles single files.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
This program shouldn't know about file names. If that is wanted, use
something like `find ... | grep ... | xargs grepc ...`.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
This program shouldn't know about file extensions. If that is wanted,
use something like `find ... | grep ... | xargs grepc ...`.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
macros, or other macros
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Also, use names consistent with the command-line option arguments.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Also, use names consistent with the command-line option arguments.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
PCRE are EOL. Long live PCRE2.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
This creates some false positives, but with appropriate flags, those can
be removed.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
of libc functions
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
To make -tu work correctly, which doesn't have the word-boundary
constraint.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
In some cases it might be nice, but in some other cases, it might
cause a lot of code to be printed. Let the user explicitly search
for it or not in a separate run.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Avoid this glich from glibc:
./sysdeps/unix/sysv/linux/x86/sys/ucontext.h:133:
typedef struct
{
gregset_t __ctx(gregs);
/* Note that fpregs is a pointer. */
fpregset_t __ctx(fpregs);
__extension__ unsigned long long __reserved1 [8];
} mcontext_t;
/* Userlevel context. */
typedef struct ucontext_t
{
unsigned long int __ctx(uc_flags);
struct ucontext_t *uc_link;
stack_t uc_stack;
mcontext_t uc_mcontext;
sigset_t uc_sigmask;
struct _libc_fpstate __fpregs_mem;
__extension__ unsigned long long int __ssp[4];
} ucontext_t;
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
- Typedefs to arrays of structures.
- Typedefs to structures of the same name.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
- Use the same ammount of spaces for the closing brace as for the
opening brace.
- Fix position of attributes.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
SC2068: Double quote array expansions to avoid re-splitting elements.
Reported-by: shellcheck(1)
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
SC2124: Use $* instead of $@ to concatenate.
Reported-by: shellcheck(1)
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
SC2004: $/${} is unnecessary on arithmetic variables.
Reported-by: shellcheck(1)
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Also, add some symmetry between ${iflag} and ${lflag}.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Normally, one either wants to see a declaration/definition, or its
uses, but not both at the same time. Also, there are usually many
more use sites than than definitions, and therefore definitions
are shadowed between all the noise. Restrict the default to
declarations and definitions, which in my experience seems to be
the most common use case.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
When it calls grepc_type_struct_union_enum(), it needs to use a
different file list, since it's searching for an identifier
different from the one passed in the command line.
Also, while at it, improve the quoting of the pattern passed to
pcregrep(1).
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Sort alphabetically the optstring.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
|
|
Rename functions to have different starting letters. Also rename
the macro functions to more closely match ISO C nomenclature.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Most importantly, typedef enum.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Reported-by: наб <nabijaczleweli@nabijaczleweli.xyz>
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Use alphabetic order.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Improve grouping so that adding flags for running the different
functions is simple.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Also, update the manual page EXAMPLES regarding blank lines.
Reported-by: наб <nabijaczleweli@nabijaczleweli.xyz>
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Reported-by: наб <nabijaczleweli@nabijaczleweli.xyz>
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Using caps instead of <> will be nicer when we add options and
optional arguments for the files/directories:
Usage: grepc [OPTION]... IDENTIFIER [FILE]...
vs
Usage: grepc [<option>]... IDENTIFIER [<file>]...
Also, it's what pcregrep(1) and GNU grep(1) use, so it's good to
use the same syntax here.
Reported-by: наб <nabijaczleweli@nabijaczleweli.xyz>
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Reported-by: наб <nabijaczleweli@nabijaczleweli.xyz>
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Reported-by: наб <nabijaczleweli@nabijaczleweli.xyz>
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Let's fall on the safe side.
Reported-by: наб <nabijaczleweli@nabijaczleweli.xyz>
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Reported-by: наб <nabijaczleweli@nabijaczleweli.xyz>
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Reported-by: наб <nabijaczleweli@nabijaczleweli.xyz>
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Reported-by: наб <nabijaczleweli@nabijaczleweli.xyz>
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
This improves the readability of the regex, and also the
robustness, at the cost of just a few ms.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Instead of running find and grep -l for every function, store the
result in a temporary file for reuse in all functions.
This is a considerable speedup, between 3x and 10x in some tests
within the Linux kernel source code.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Those two spaces are for handling some insane GNU style. Those
are always spaces, so let's use ' ' instead of '\s\s' to make
sure we don't match two tabs, or things like that.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Use 2 grep(1) filters instead of 1, to be able to filter better
before the multiline pcregrep(1) filter, which is considerably
slower.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
positives
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
In definitions of the form
typedef struct foo {...} foo;
grepc_type_typedef_struct_union_enum() is already finding it.
Remove the duplicate here.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
struct|union|enum keyword
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
In typedefs of the form 'typedef struct foo foo;', don't print the
structure twice.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
If we use different regex types within the program, then users
can't use regex patterns in the identifier due to
incompatibilities. Let's use Perl regex everywhere we can, so
that users can consistently use Perl regex patterns in the
identifier. Example:
$ grepc (vf|as)printf;
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Allow one single argument only.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
I forgot to do it right after releasing man-pages-6.15.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Scripted change:
$ ~/src/linux/linux/v6.17/scripts/bpf_doc.py \
| rst2man \
>man7/bpf-helpers.7;
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
This work is incomplete, but waiting until all pages have been updated
would unnecessarily delay publishing these changes, which are already
useful.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
This function was marked as legacy in POSIX.1-2001 and has been removed
from many systems, including glibc.
Signed-off-by: Collin Funk <collin.funk1@gmail.com>
Message-ID: <5924c3b09d8e373be6ac1b5ca663b8ad7d106d93.1750306917.git.collin.funk1@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
As documented in the STANDARDS section, gettimeofday(2) was deprecated
in POSIX.1-2008 and removed in POSIX.1-2024. Mark it and
settimeofday(2) with [[deprecated]], and mention clock_settime(2) as a
modern and standardized alternative to settimeofday(2).
Signed-off-by: Collin Funk <collin.funk1@gmail.com>
Message-ID: <2d37d5a9251af3c1d25cf8e73e3585a9955d5772.1750373011.git.collin.funk1@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
The FreeBSD implementation of ptsname_r(2) returns -1 on error and sets
errno, instead of just returning the errno. Document this issue for
programs written with portability in mind.
Signed-off-by: Collin Funk <collin.funk1@gmail.com>
Message-ID: <37f138bc5c5e6604f0a0afcc531694387d2cc424.1749792527.git.collin.funk1@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Collin Funk <collin.funk1@gmail.com>
Message-ID: <2d55b75480ae862a622ac46e7e6c7628f6efc45d.1747519811.git.collin.funk1@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Collin Funk <collin.funk1@gmail.com>
Message-ID: <bae6bc16f9ab6bd3e5c30dc8e11bd83566b06a6f.1747519811.git.collin.funk1@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Collin Funk <collin.funk1@gmail.com>
Message-ID: <883d4a9b8cfb757a080710cf0133be5d0e12adce.1747515178.git.collin.funk1@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
POSIX.1-2024 encourages implementations to disallow new-line characters,
but Linux doesn't follow that.
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
POSIX.1-2024 now mandates a behavior different from what Linux (and many
other implementations) does. It requires that we report EINPROGRESS for
what now is EINTR.
There are no plans to conform to POSIX.1-2024 within the Linux kernel,
so document this divergence. Keep POSIX.1-2008 as the standard to
which we conform in STANDARDS.
Link: <https://sourceware.org/bugzilla/show_bug.cgi?id=14627>
Link: <https://pubs.opengroup.org/onlinepubs/9799919799/functions/close.html>
Cc: Jan Kara <jack@suse.cz>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Rich Felker <dalias@libc.org>
Cc: <linux-fsdevel@vger.kernel.org>
Cc: <linux-api@vger.kernel.org>
Cc: <libc-alpha@sourceware.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
doesn't support it
Fixes: 265b9898dfe2 (2025-05-09; "man/man2/: VERSIONS: POSIX.1-2024 specifies *_CLOFORK, but Linux doesn't support it")
Link: <https://lore.kernel.org/all/20200515160342.GE23230@ZenIV.linux.org.uk/>
Cc: Mateusz Guzik <mjguzik@gmail.com>
Cc: Jeff Layton <jlayton@kernel.org>
Cc: Chuck Lever <chuck.lever@oracle.com>
Cc: <linux-fsdevel@vger.kernel.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Fixes: 4131356cdab8 (2023-03-30; "man*/, man-pages.7: VERSIONS, STANDARDS, HISTORY: Reorganize sections")
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Reported-by: Alejandro Colomar <alx@kernel.org>
Cc: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Suggested-by: "G. Branden Robinson" <g.branden.robinson@gmail.com>
Co-authored-by: "G. Branden Robinson" <g.branden.robinson@gmail.com>
Signed-off-by: "G. Branden Robinson" <g.branden.robinson@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Those flags were added in Linux 6.9 (see [1]), and are documented
in [2].
The text added is a modified version of [3], removing some repetition
and adapting from markdown to mandoc.
[1]: <https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e1fb1dc08e73>
[2]: <https://github.com/brauner/man-pages-md/blob/main/pidfd_send_signal.md>
[3]: <https://github.com/brauner/man-pages-md/pull/2>
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Message-ID: <20251008020031.1215030-4-kolyshkin@gmail.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
[alx: ffix]
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
PIDFD_THREAD flag for pidfd_open(2) was added in Linux 6.9 (see [1]).
Add a TODO to describe the nuances of using poll/epoll/select
with a pidfd referring to a process vs a thread.
[1]: <https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=64bef697d33b>
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Message-ID: <20251013191049.193375-2-kolyshkin@gmail.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
[alx: ffix]
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Document TCP_SAVE_SYN and TCP_SAVED_SYN options based on git commit
linux.git cd8ae85299d5 (2015-05-05; "tcp: provide SYN headers for
passive connections") which introduced it.
Link: <https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=cd8ae85299d54155702a56811b2e035e63064d3d>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: ValdikSS <iam@valdikss.org.ru>
Message-ID: <20251015214826.70750-1-iam@valdikss.org.ru>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
This behavior can be seen with the following example program:
$ cat main.c
#include <dirent.h>
#include <err.h>
#include <string.h>
#include <stdlib.h>
#include <sys/types.h>
int
main(int argc, char *argv[argc+1])
{
DIR *d;
if (argc < 2)
errx(EXIT_FAILURE, "argc < 2");
d = opendir(argv[1]);
if (d == NULL)
err(EXIT_FAILURE, "opendir");
closedir(d);
exit(EXIT_SUCCESS);
}
$ cc -Wall -Wextra main.c
$ ./a.out $(printf '%0999d')
a.out: opendir: File name too long
Signed-off-by: Collin Funk <collin.funk1@gmail.com>
Message-ID: <4266061219d7406c0aa737f8d52108fea7e0f7fb.1760689006.git.collin.funk1@gmail.com>
[jwilk: simpler reproducer]
Cc: Jakub Wilk <jwilk@jwilk.net>
[alx: Fix style in the reproducer program]
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
Rename uimaxabs(3) => umaxabs(3). And add a link page.
Keep a link with the old name, so that programmers looking for the old
name are redirected to the new name, so they find what they need.
I've removed documentation for uimaxabs(3), instead of keeping
information in HISTORY, as it has only existed for one glibc version,
to avoid programmers being confused by the old name.
Link: <https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3577.txt>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
|
The "old" implementation led to priority inversion and was more or less
easy to trigger. It seems that after the rewrite the issue disappeared
especially since the old workaround does not apply anymore.
Add a note mentioning the old problem and why the issue is not gone
since the rewrite in glibc 2.25 but harder to trigger.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: André Almeida <andrealmeid@igalia.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Valentin Schneider <vschneid@redhat.com>
Cc: Waiman Long <longman@redhat.com>
Message-ID: <20250915141305.906440-6-bigeasy@linutronix.de>
[alx: wfix, srcfix]
Signed-off-by: Alejandro Colomar <alx@kernel.org>
|
