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8580bed7e7
Building objtool with ARCH=x86_64 fails with:
$make ARCH=x86_64 -C tools/objtool
...
CC arch/x86/decode.o
arch/x86/decode.c:10:22: fatal error: asm/insn.h: No such file or directory
#include <asm/insn.h>
^
compilation terminated.
mv: cannot stat ‘arch/x86/.decode.o.tmp’: No such file or directory
make[2]: *** [arch/x86/decode.o] Error 1
...
The root cause is that the command-line variable 'ARCH' cannot be
overridden. It can be replaced by 'SRCARCH', which is defined in
'tools/scripts/Makefile.arch'.
Signed-off-by: Shile Zhang <shile.zhang@linux.alibaba.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Link: https://lore.kernel.org/r/d5d11370ae116df6c653493acd300ec3d7f5e925.1579543924.git.jpoimboe@redhat.com
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.