mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2026-09-22 09:34:56 +02:00
Vasily Gorbik
08fbcba06e
[ Upstream commit023f124a64] Kernel cross-compilation with BUILDTIME_MCOUNT_SORT produces zeroed mcount values if the build-host endianness does not match the ELF file endianness. The mcount values array is converted from ELF file endianness to build-host endianness during initialization in fill_relocs()/fill_addrs(). Avoid extra conversion of these values during weak-function zeroing; otherwise, they do not match nm-parsed addresses and all mcount values are zeroed out. Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Alexander Gordeev <agordeev@linux.ibm.com> Link: https://lore.kernel.org/patch.git-dca31444b0f1.your-ad-here.call-01743554658-ext-8692@work.hours Fixes:ef378c3b82("scripts/sorttable: Zero out weak functions in mcount_loc table") Reported-by: Ilya Leoshkevich <iii@linux.ibm.com> Reported-by: Ihor Solodrai <ihor.solodrai@linux.dev> Closes: https://lore.kernel.org/all/your-ad-here.call-01743522822-ext-4975@work.hours/ Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@crowdstrike.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.