mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-05-06 06:10:45 -04:00
6d40f05fad
The current version of the macro "for" is not able to work when the counter is used to generate registers using mnemonics. This is because gas is not able to evaluate the expression generated if used in register's name (i.e x\n). Gas offers a way to evaluate macro arguments by using % in front of them under the alternate macro mode. The implementation of "for" is updated to use the alternate macro mode and %, so we can use the macro in more cases. As the alternate macro mode may have side-effects, this is disabled when expanding the body. While it is enough to prefix the argument of the macro "__for_body" with %, the arguments of "__for" are also prefixed to get a more bearable value in case of compilation error. Suggested-by: Dave Martin <dave.martin@arm.com> Signed-off-by: Julien Grall <julien.grall@arm.com> Signed-off-by: Mark Brown <broonie@kernel.org> Reviewed-by: Dave Martin <Dave.Martin@arm.com> Link: https://lore.kernel.org/r/20200828181155.17745-4-broonie@kernel.org Signed-off-by: Will Deacon <will@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.