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Edward Humes 6c6f956c92 alpha: fix R_ALPHA_LITERAL reloc for large modules
[ Upstream commit b6b17a8b3e ]

Previously, R_ALPHA_LITERAL relocations would overflow for large kernel
modules.

This was because the Alpha's apply_relocate_add was relying on the kernel's
module loader to have sorted the GOT towards the very end of the module as it
was mapped into memory in order to correctly assign the global pointer. While
this behavior would mostly work fine for small kernel modules, this approach
would overflow on kernel modules with large GOT's since the global pointer
would be very far away from the GOT, and thus, certain entries would be out of
range.

This patch fixes this by instead using the Tru64 behavior of assigning the
global pointer to be 32KB away from the start of the GOT. The change made
in this patch won't work for multi-GOT kernel modules as it makes the
assumption the module only has one GOT located at the beginning of .got,
although for the vast majority kernel modules, this should be fine. Of the
kernel modules that would previously result in a relocation error, none of
them, even modules like nouveau, have even come close to filling up a single
GOT, and they've all worked fine under this patch.

Signed-off-by: Edward Humes <aurxenon@lunos.org>
Signed-off-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:49:01 +01:00
arch alpha: fix R_ALPHA_LITERAL reloc for large modules 2023-03-17 08:49:01 +01:00
block block: don't allow multiple bios for IOCB_NOWAIT issue 2023-03-10 09:39:55 +01:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:22:01 +02:00
crypto crypto: rsa-pkcs1pad - Use akcipher_request_complete 2023-03-10 09:39:16 +01:00
Documentation attr: use consistent sgid stripping checks 2023-03-17 08:49:01 +01:00
drivers tpm/eventlog: Don't abort tpm_read_log on faulty ACPI address 2023-03-17 08:48:59 +01:00
fs attr: use consistent sgid stripping checks 2023-03-17 08:49:01 +01:00
include fs: use consistent setgid checks in is_sxid() 2023-03-17 08:49:01 +01:00
init kbuild: Add CONFIG_PAHOLE_VERSION 2023-02-25 12:06:45 +01:00
io_uring io_uring/poll: allow some retries for poll triggering spuriously 2023-03-10 09:40:04 +01:00
ipc ipc/sem: Fix dangling sem_array access in semtimedop race 2022-12-08 11:28:45 +01:00
kernel watch_queue: fix IOC_WATCH_QUEUE_SET_SIZE alloc error paths 2023-03-17 08:48:59 +01:00
lib kobject: Fix slab-out-of-bounds in fill_kobj_path() 2023-03-10 09:39:35 +01:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
mm mm/thp: check and bail out if page in deferred queue already 2023-03-10 09:40:09 +01:00
net af_unix: fix struct pid leaks in OOB support 2023-03-17 08:48:57 +01:00
samples samples: vfio-mdev: Fix missing pci_disable_device() in mdpy_fb_probe() 2022-12-31 13:14:31 +01:00
scripts builddeb: clean generated package content 2023-03-10 09:39:44 +01:00
security ima: Align ima_file_mmap() parameters with mmap_file LSM hook 2023-03-10 09:40:03 +01:00
sound ASoC: mediatek: mt8195: add missing initialization 2023-03-11 13:57:32 +01:00
tools perf stat: Fix counting when initial delay configured 2023-03-17 08:48:54 +01:00
usr usr/include/Makefile: add linux/nfc.h to the compile-test coverage 2022-02-01 17:27:15 +01:00
virt KVM: Register /dev/kvm as the _very_ last thing during initialization 2023-03-17 08:48:49 +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 Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.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 COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Daniel Drake to credits 2021-09-21 08:34:58 +03:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS kbuild: Add CONFIG_PAHOLE_VERSION 2023-02-25 12:06:45 +01:00
Makefile Linux 5.15.102 2023-03-13 10:20:37 +01:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.