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Namhyung Kim 8c2eafbbfd perf symbol: Prefer non-label symbols with same address 
When there are more than one symbols at the same address, it needs to
choose which one is better.  In choose_best_symbol() it didn't check the
type of symbols.  It's possible to have labels in other symbols and in
that case, it would be better to pick the actual symbol over the labels.
To minimize the possible impact on other symbols, I only check NOTYPE
symbols specifically.

  $ readelf -sW vmlinux | grep -e __do_softirq -e __softirqentry_text_start
  105089: ffffffff82000000   814 FUNC    GLOBAL DEFAULT    1 __do_softirq
  111954: ffffffff82000000     0 NOTYPE  GLOBAL DEFAULT    1 __softirqentry_text_start

The commit 77b004f4c5 tried to do the same by not giving the size
to the label symbols but it seems there's some label-only symbols in asm
code.  Let's restore the original code and choose the right symbol using
type of the symbols.

Fixes: 77b004f4c5 ("perf symbol: Do not fixup end address of labels")
Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Ian Rogers <irogers@google.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Link: http://lore.kernel.org/lkml/Z3b-DqBMnNb4ucEm@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2025-01-10 10:59:42 -03:00
arch OpenRISC fixes for 6.13-rc3 2024-12-12 13:20:53 -08:00
block blk-mq: move cpuhp callback registering out of q->sysfs_lock 2024-12-06 09:48:46 -07:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto module: Convert symbol namespace to string literal 2024-12-02 11:34:44 -08:00
Documentation perf tools: Remove dependency on libaudit 2025-01-10 10:59:42 -03:00
drivers Including fixes from bluetooth, netfilter and wireless. 2024-12-12 11:28:05 -08:00
fs three kernel server fixes 2024-12-12 17:33:20 -08:00
include Including fixes from bluetooth, netfilter and wireless. 2024-12-12 11:28:05 -08:00
init - The series "resource: A couple of cleanups" from Andy Shevchenko 2024-11-25 16:09:48 -08:00
io_uring io_uring: Change res2 parameter type in io_uring_cmd_done 2024-12-03 06:33:13 -07:00
ipc - The series "resource: A couple of cleanups" from Andy Shevchenko 2024-11-25 16:09:48 -08:00
kernel Probes fixes for v6.13-rc1: 2024-12-10 18:15:25 -08:00
lib - Remove if_not_guard() as it is generating incorrect code 2024-12-09 10:34:41 -08:00
LICENSES LICENSES: add 0BSD license text 2024-09-01 20:43:24 -07:00
mm 24 hotfixes. 17 are cc:stable. 15 are MM and 9 are non-MM. 2024-12-08 11:26:13 -08:00
net Including fixes from bluetooth, netfilter and wireless. 2024-12-12 11:28:05 -08:00
rust block-6.13-20242901 2024-11-30 15:47:29 -08:00
samples BPF fixes: 2024-12-06 15:07:48 -08:00
scripts openrisc: place exception table at the head of vmlinux 2024-12-10 12:04:19 +00:00
security Including fixes from can and netfilter. 2024-12-05 10:25:06 -08:00
sound sound fixes for 6.13-rc2 2024-12-06 11:46:39 -08:00
tools perf symbol: Prefer non-label symbols with same address 2025-01-10 10:59:42 -03:00
usr initramfs: shorten cmd_initfs in usr/Makefile 2024-07-16 01:07:52 +09:00
virt VFIO updates for v6.13 2024-11-27 12:57:03 -08:00
.clang-format clang-format: Update with v6.11-rc1's for_each macro list 2024-08-02 13:20:31 +02:00
.clippy.toml rust: enable Clippy's check-private-items 2024-10-07 21:39:57 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore MAINTAINERS: Retire Ralf Baechle 2024-11-12 15:48:59 +01:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore Kbuild updates for v6.13 2024-11-30 13:41:50 -08:00
.mailmap media updates for v6.13-rc1 2024-11-20 14:01:15 -08:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS cgroup: Changes for v6.13 2024-11-20 09:54:49 -08:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS Including fixes from bluetooth, netfilter and wireless. 2024-12-12 11:28:05 -08:00
Makefile Linux 6.13-rc2 2024-12-08 14:03:39 -08:00
README README: Fix spelling 2024-03-18 03:36:32 -06:00

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 reStructuredText 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.