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Adrian Hunter e127c17af3 perf script: Fix hex dump character output commit `62942e9fda` upstream. Using grep -C with perf script -D can give erroneous results as grep loses lines due to non-printable characters, for example, below the 0020, 0060 and 0070 lines are missing: $ perf script -D \| grep -C10 AUX \| head . 0010: 08 00 00 00 00 00 00 00 1f 00 00 00 00 00 00 00 ................ . 0030: 01 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 ................ . 0040: 00 08 00 00 00 00 00 00 02 00 00 00 00 00 00 00 ................ . 0050: 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ . 0080: 02 00 00 00 00 00 00 00 1b 00 00 00 00 00 00 00 ................ . 0090: 00 00 00 00 00 00 00 00 ........ 0 0 0x450 [0x98]: PERF_RECORD_AUXTRACE_INFO type: 1 PMU Type 8 Time Shift 31 perf's isprint() is a custom implementation from the kernel, but the kernel's _ctype appears to include characters from Latin-1 Supplement which is not compatible with, for example, UTF-8. Fix by checking also isascii(). After: $ tools/perf/perf script -D \| grep -C10 AUX \| head . 0010: 08 00 00 00 00 00 00 00 1f 00 00 00 00 00 00 00 ................ . 0020: 03 84 32 2f 00 00 00 00 63 7c 4f d2 fa ff ff ff ..2/....c\|O..... . 0030: 01 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 ................ . 0040: 00 08 00 00 00 00 00 00 02 00 00 00 00 00 00 00 ................ . 0050: 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ . 0060: 00 02 00 00 00 00 00 00 00 c0 03 00 00 00 00 00 ................ . 0070: e2 00 00 00 00 00 00 00 02 00 00 00 00 00 00 00 ................ . 0080: 02 00 00 00 00 00 00 00 1b 00 00 00 00 00 00 00 ................ . 0090: 00 00 00 00 00 00 00 00 ........ Fixes: `3052ba56bc` ("tools perf: Move from sane_ctype.h obtained from git to the Linux's original") Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lore.kernel.org/lkml/20220112085057.277205-1-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-01-27 11:05:37 +01:00
arch	um: gitignore: Add kernel/capflags.c	2022-01-27 11:05:34 +01:00
block	block: Fix fsync always failed if once failed	2022-01-27 11:05:25 +01:00
certs	certs: Add support for using elliptic curve keys for signing modules	2021-08-23 19:55:42 +03:00
crypto	crypto: jitter - consider 32 LSB for APT	2022-01-27 11:04:31 +01:00
Documentation	Documentation: fix firewire.rst ABI file path error	2022-01-27 11:05:21 +01:00
drivers	libcxgb: Don't accidentally set RTO_ONLINK in cxgb_find_route()	2022-01-27 11:05:36 +01:00
fs	f2fs: fix to check available space of CP area correctly in update_ckpt_flags()	2022-01-27 11:05:30 +01:00
include	inet: frags: annotate races around fqdir->dead and fqdir->high_thresh	2022-01-27 11:05:35 +01:00
init	init: make unknown command line param message clearer	2021-11-18 19:17:11 +01:00
ipc	shm: extend forced shm destroy to support objects from several IPC nses	2021-11-25 09:48:42 +01:00
kernel	taskstats: Cleanup the use of task->exit_code	2022-01-27 11:05:35 +01:00
lib	kunit: Don't crash if no parameters are generated	2022-01-27 11:04:40 +01:00
LICENSES	LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes"	2021-07-15 06:31:24 -06:00
mm	shmem: fix a race between shmem_unused_huge_shrink and shmem_evict_inode	2022-01-27 11:03:01 +01:00
net	gre: Don't accidentally set RTO_ONLINK in gre_fill_metadata_dst()	2022-01-27 11:05:36 +01:00
samples	samples: bpf: Fix 'unknown warning group' build warning on Clang	2022-01-27 11:03:29 +01:00
scripts	recordmcount.pl: fix typo in s390 mcount regex	2022-01-05 12:42:33 +01:00
security	selinux: fix potential memleak in selinux_add_opt()	2022-01-27 11:03:43 +01:00
sound	ASoC: mediatek: mt8183: fix device_node leak	2022-01-27 11:05:04 +01:00
tools	perf script: Fix hex dump character output	2022-01-27 11:05:37 +01:00
usr	.gitignore: prefix local generated files with a slash	2021-05-02 00:43:35 +09:00
virt	KVM: downgrade two BUG_ONs to WARN_ON_ONCE	2021-12-22 09:32:34 +01:00
.clang-format	clang-format: Update with the latest for_each macro list	2021-05-12 23:32:39 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore	.gitignore: ignore only top-level modules.builtin	2021-05-02 00:43:35 +09:00
.mailmap	mailmap: add Andrej Shadura	2021-10-18 20:22:03 -10:00
COPYING
CREDITS	MAINTAINERS: Move Daniel Drake to credits	2021-09-21 08:34:58 +03:00
Kbuild
Kconfig
MAINTAINERS	drm fixes for 5.15 final	2021-10-28 12:17:01 -07:00
Makefile	Linux 5.15.16	2022-01-20 09:13:16 +01:00
README

README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.