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b3af390f82
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Tri Vo b3af390f82 UPSTREAM: gcov: docs: add a note on GCC vs Clang differences 
Document some things of note to gcov users:
1. GCC gcov and Clang llvm-cov tools are not compatible.
2. The use of GCC vs Clang is transparent at build-time.

Also adjust the documentation to account for the removal of config symbol
CONFIG_GCOV_FORMAT_AUTODETECT by commit 6a61b70b43 ("gcov: remove
CONFIG_GCOV_FORMAT_AUTODETECT").

Link: http://lkml.kernel.org/r/20190318025411.98014-4-trong@android.com
Signed-off-by: Tri Vo <trong@android.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Cc: Daniel Mentz <danielmentz@google.com>
Cc: Greg Hackmann <ghackmann@android.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Petri Gynther <pgynther@google.com>
Cc: Prasad Sodagudi <psodagud@quicinc.com>
Cc: Trilok Soni <tsoni@quicinc.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit aa069a23a2)
Bug: 132997968
Test: defconfig + CONFIG_GCOV_KERNEL records coverage

Change-Id: Id9a248d5e6d8fc643300230b2ab2ce902050a6ae
2019-05-17 16:04:56 -07:00
arch This is the 4.19.44 stable release 2019-05-16 19:52:46 +02:00
block This is the 4.19.44 stable release 2019-05-16 19:52:46 +02:00
certs export.h: remove VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR() 2018-08-22 23:21:44 +09:00
crypto This is the 4.19.37 stable release 2019-04-30 12:53:00 +02:00
Documentation UPSTREAM: gcov: docs: add a note on GCC vs Clang differences 2019-05-17 16:04:56 -07:00
drivers This is the 4.19.44 stable release 2019-05-16 19:52:46 +02:00
firmware kbuild: remove all dummy assignments to obj- 2017-11-18 11:46:06 +09:00
fs This is the 4.19.44 stable release 2019-05-16 19:52:46 +02:00
include UPSTREAM: module: add stubs for within_module functions 2019-05-17 16:00:22 -07:00
init This is the 4.19.44 stable release 2019-05-16 19:52:46 +02:00
ipc ANDROID: vfs: Add permission2 for filesystems with per mount permissions 2018-12-05 09:48:14 -08:00
kernel UPSTREAM: gcov: clang: move common GCC code into gcc_base.c 2019-05-17 16:04:37 -07:00
lib This is the 4.19.42 stable release 2019-05-10 18:30:16 +02:00
LICENSES LICENSES: Remove CC-BY-SA-4.0 license text 2018-10-18 11:28:50 +02:00
mm This is the 4.19.44 stable release 2019-05-16 19:52:46 +02:00
net This is the 4.19.44 stable release 2019-05-16 19:52:46 +02:00
samples samples: mei: use /dev/mei0 instead of /dev/mei 2019-02-15 08:10:11 +01:00
scripts This is the 4.19.41 stable release 2019-05-08 07:39:48 +02:00
security This is the 4.19.44 stable release 2019-05-16 19:52:46 +02:00
sound x86/cpu: Sanitize FAM6_ATOM naming 2019-05-14 19:17:53 +02:00
tools This is the 4.19.44 stable release 2019-05-16 19:52:46 +02:00
usr initramfs: move gen_initramfs_list.sh from scripts/ to usr/ 2018-08-22 23:21:44 +09:00
virt KVM: fix spectrev1 gadgets 2019-05-16 19:41:22 +02:00
.clang-format clang-format: Set IndentWrappedFunctionNames false 2018-08-01 18:38:51 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore Kbuild updates for v4.17 (2nd) 2018-04-15 17:21:30 -07:00
.mailmap libnvdimm-for-4.19_misc 2018-08-25 18:13:10 -07:00
build.config.cuttlefish.aarch64 ANDROID: Move from clang r349610 to r353983c. 2019-05-14 17:32:39 -07:00
build.config.cuttlefish.x86_64 ANDROID: Move from clang r349610 to r353983c. 2019-05-14 17:32:39 -07:00
COPYING COPYING: use the new text with points to the license files 2018-03-23 12:41:45 -06:00
CREDITS 9p: remove Ron Minnich from MAINTAINERS 2018-08-17 16:20:26 -07:00
Kbuild Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Kconfig kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt 2018-08-02 08:06:55 +09:00
MAINTAINERS platform/x86: Add Intel AtomISP2 dummy / power-management driver 2019-04-20 09:16:02 +02:00
Makefile This is the 4.19.44 stable release 2019-05-16 19:52:46 +02:00
README Docs: Added a pointer to the formatted docs to README 2018-03-21 09:02:53 -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.
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.