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mainlining shenanigans
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Linus Torvalds d937a6dfc9 Merge branch 'core-objtool-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull objtool updates from Ingo Molnar:
 "The biggest changes in this cycle were the vmlinux.o optimizations by
   Peter Zijlstra, which are preparatory and optimization work to run
   objtool against the much richer vmlinux.o object file, to perform
   new, whole-program section based logic. That work exposed a handful
   of problems with the existing code, which fixes and optimizations are
   merged here. The complete 'vmlinux.o and noinstr' work is still work
   in progress, targeted for v5.8.

  There's also assorted fixes and enhancements from Josh Poimboeuf.

  In particular I'd like to draw attention to commit 644592d328,
  which turns fatal objtool errors into failed kernel builds. This
  behavior is IMO now justified on multiple grounds (it's easy currently
  to not notice an essentially corrupted kernel build), and the commit
  has been in -next testing for several weeks, but there could still be
  build failures with old or weird toolchains. Should that be widespread
  or high profile enough then I'd suggest a quick revert, to not hold up
  the merge window"

* 'core-objtool-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits)
  objtool: Re-arrange validate_functions()
  objtool: Optimize find_rela_by_dest_range()
  objtool: Delete cleanup()
  objtool: Optimize read_sections()
  objtool: Optimize find_symbol_by_name()
  objtool: Resize insn_hash
  objtool: Rename find_containing_func()
  objtool: Optimize find_symbol_*() and read_symbols()
  objtool: Optimize find_section_by_name()
  objtool: Optimize find_section_by_index()
  objtool: Add a statistics mode
  objtool: Optimize find_symbol_by_index()
  x86/kexec: Make relocate_kernel_64.S objtool clean
  x86/kexec: Use RIP relative addressing
  objtool: Rename func_for_each_insn_all()
  objtool: Rename func_for_each_insn()
  objtool: Introduce validate_return()
  objtool: Improve call destination function detection
  objtool: Fix clang switch table edge case
  objtool: Add relocation check for alternative sections
  ...
2020-03-30 15:32:23 -07:00
arch Merge branch 'core-objtool-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2020-03-30 15:32:23 -07:00
block for-5.7/drivers-2020-03-29 2020-03-30 11:43:51 -07:00
certs certs: Add wrapper function to check blacklisted binary hash 2019-11-12 12:25:50 +11:00
crypto Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity 2020-02-20 15:15:16 -08:00
Documentation ACPI updates for 5.7-rc1 2020-03-30 15:17:04 -07:00
drivers PNP subsystem updates for 5.7-rc1 2020-03-30 15:28:12 -07:00
fs Driver core patches for 5.7-rc1 2020-03-30 13:59:52 -07:00
include PNP subsystem updates for 5.7-rc1 2020-03-30 15:28:12 -07:00
init for-5.7/block-2020-03-29 2020-03-30 11:20:13 -07:00
ipc Revert "ipc,sem: remove uneeded sem_undo_list lock usage in exit_sem()" 2020-02-21 11:22:15 -08:00
kernel Power management updates for 5.7-rc1 2020-03-30 15:05:01 -07:00
lib Driver core patches for 5.7-rc1 2020-03-30 13:59:52 -07:00
LICENSES LICENSES: Rename other to deprecated 2019-05-03 06:34:32 -06:00
mm mm/sparse: fix kernel crash with pfn_section_valid check 2020-03-29 09:47:06 -07:00
net This has been a busy cycle for documentation work. Highlights include: 2020-03-30 12:45:23 -07:00
samples media: rename VFL_TYPE_GRABBER to _VIDEO 2020-02-24 16:52:39 +01:00
scripts This has been a busy cycle for documentation work. Highlights include: 2020-03-30 12:45:23 -07:00
security KEYS: reaching the keys quotas correctly 2020-03-15 20:59:50 +02:00
sound Merge branch 'pm-qos' 2020-03-30 14:45:57 +02:00
tools Merge branch 'core-objtool-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2020-03-30 15:32:23 -07:00
usr initramfs: restore default compression behavior 2020-03-17 09:50:37 +09:00
virt KVM/arm fixes for 5.6, take #1 2020-02-28 11:50:06 +01:00
.clang-format clang-format: Update with the latest for_each macro list 2020-03-06 21:50:05 +01:00
.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 selftest/lkdtm: Use local .gitignore 2020-03-02 08:39:39 -07:00
.mailmap media updates for v5.7-rc1 2020-03-30 13:42:05 -07:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Hand MIPS over to Thomas 2020-02-24 22:43:18 -08:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig docs: kbuild: convert docs to ReST and rename to *.rst 2019-06-14 14:21:21 -06:00
MAINTAINERS PNP subsystem updates for 5.7-rc1 2020-03-30 15:28:12 -07:00
Makefile Linux 5.6 2020-03-29 15:25:41 -07:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -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 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.