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[ Upstream commit4ebe33398c] Find the actual echo binary using $(which echo) and use it for formatted output with -ne. On some systems, the default echo command doesn't handle the -e option and the output looks like this (arm64 build): -ne Emit Tests for alsa -ne Emit Tests for amd-pstate -ne Emit Tests for arm64 This is for example the case with the KernelCI Docker images e.g. kernelci/gcc-10:x86-kselftest-kernelci. With the actual echo binary (e.g. in /bin/echo), the output is formatted as expected (x86 build this time): Emit Tests for alsa Emit Tests for amd-pstate Skipping non-existent dir: arm64 Only the install target is using "echo -ne" so keep the $ECHO variable local to it. Reported-by: "kernelci.org bot" <bot@kernelci.org> Fixes:3297a4df80("kselftests: Enable the echo command to print newlines in Makefile") Signed-off-by: Guillaume Tucker <guillaume.tucker@collabora.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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.