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Filename Latest commit message Latest commit date
Greg Hackmann e145f7b103 ANDROID: Kbuild, LLVMLinux: allow overriding clang target triple
Android has an unusual setup where the kernel needs to target
[arch]-linux-gnu to avoid Android userspace-specific flags and
optimizations, but AOSP doesn't ship a matching binutils.

Add a new variable CLANG_TRIPLE which can override the "-target" triple
used to compile the kernel, while using a different CROSS_COMPILE to
pick the binutils/gcc installation.  For Android you'd do something
like:

  export CLANG_TRIPLE=aarch64-linux-gnu-
  export CROSS_COMPILE=aarch64-linux-android-

If you don't need something like this, leave CLANG_TRIPLE unset and it
will default to CROSS_COMPILE.

Change-Id: I85d63599c6ab8ed458071cdf9197d85b1f7f150b
Signed-off-by: Greg Hackmann <ghackmann@google.com>
[astrachan: Added a script to check for incorrectly falling back to the
            default when CLANG_TRIPLE is unset]
Bug: 118439987
Bug: 120440614
Test: make CLANG_TRIPLE=x86_64-linux-gnu CC=clang
Signed-off-by: Alistair Strachan <astrachan@google.com>
2019-05-03 10:39:56 -07:00
arch ANDROID: x86: Remove a useless warning message 2019-05-03 10:39:56 -07:00
block
certs
crypto
Documentation Code of Conduct: Change the contact email address 2018-10-22 07:33:36 +01:00
drivers Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2018-10-21 13:51:36 +02:00
firmware
fs
include GPF fix in atomic flipping, sun4i overflow fix. 2018-10-20 09:23:12 +02:00
init
ipc
kernel Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-10-20 15:03:45 +02:00
lib
LICENSES
mm
net Revert "neighbour: force neigh_invalidate when NUD_FAILED update is from admin" 2018-10-20 22:25:01 -07:00
samples
scripts ANDROID: Kbuild, LLVMLinux: allow overriding clang target triple 2019-05-03 10:39:56 -07:00
security
sound
tools Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-10-20 15:02:51 +02:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: Add an entry for the code of conduct 2018-10-22 07:33:36 +01:00
Makefile ANDROID: Kbuild, LLVMLinux: allow overriding clang target triple 2019-05-03 10:39:56 -07:00
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.
See Documentation/00-INDEX for a list of what is contained in each file.

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.