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Allow macro expansion for values passed to the `__retval` and `__retval_unpriv` attributes. This is especially useful for testing programs which return various error codes. With this change, the code for parsing special literals can be made simpler, as the literals are defined via macros. The only exception is INT_MIN which expands to (-INT_MAX -1), which is not single number and cannot be parsed by strtol. So, we instead use a prefixed literal _INT_MIN in __retval and handle it separately (assign the expected return to INT_MIN). Also, strtol cannot handle the "ll" suffix so change the value of POINTER_VALUE from 0xcafe4all to 0xbadcafe. Signed-off-by: Viktor Malik <vmalik@redhat.com> Link: https://lore.kernel.org/r/a6c6b551ae0575351faa7b7a1df52f9341a5cbe8.1750917800.git.vmalik@redhat.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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| fs | ||
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| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
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| samples | ||
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| virt | ||
| .clang-format | ||
| .clippy.toml | ||
| .cocciconfig | ||
| .editorconfig | ||
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| .mailmap | ||
| .pylintrc | ||
| .rustfmt.toml | ||
| COPYING | ||
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| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| 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 reStructuredText 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.