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078a2ead54
When building with Clang, I am getting many warnings from the selftests/rseq tree. Here's one such example from rseq tree: | param_test.c🔢10: error: address argument to atomic operation must be a pointer to _Atomic type ('intptr_t *' (aka 'long *') invalid) | 1234 | while (!atomic_load(&args->percpu_list_ptr)) {} | | ^ ~~~~~~~~~~~~~~~~~~~~~~ | /usr/local/google/home/justinstitt/repos/tc-build/build/llvm/final/lib/clang/18/include/stdatomic.h:140:29: note: expanded from macro 'atomic_load' | 140 | #define atomic_load(object) __c11_atomic_load(object, __ATOMIC_SEQ_CST) | | ^ ~~~~~~ Use compiler builtins `__atomic_load_n()` and `__atomic_store_n()` with accompanying __ATOMIC_ACQUIRE and __ATOMIC_RELEASE, respectively. This will fix the warnings because the compiler builtins do not expect their arguments to have _Atomic type. This should also make TSAN happier. Link: https://github.com/ClangBuiltLinux/linux/issues/1698 Link: https://github.com/ClangBuiltLinux/continuous-integration2/issues/61 Suggested-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: Justin Stitt <justinstitt@google.com> Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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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.