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554eec0b4a
The stubs for the ancient MCA support (CONFIG_X86_ANCIENT_MCE) are
normally optimized away on 64-bit builds. However, an allmodconfig one
causes the compiler to add sanitizer calls gunk into them and they exist
as constprop calls. Which objtool then complains about:
vmlinux.o: warning: objtool: do_machine_check+0xad8: call to \
pentium_machine_check.constprop.0() leaves .noinstr.text section
due to them missing noinstr. One could tag them "noinstr" but what
should really happen is, they should be forcefully inlined so that all
that gunk gets optimized away and the warning doesn't even have a chance
to fire.
Do so.
No functional changes.
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230222191054.4701-1-bp@alien8.de
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| 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.