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4a0c7a6831
Pull perf tools fixes from Arnaldo Carvalho de Melo: - Prevent reading into undefined memory in the expression lexer, accounting for a trailer backslash followed by the null byte. - Fix file mode when copying files to the build id cache, the problem happens when the cache directory is in a different file system than the file being cached, otherwise the mode was preserved as only a hard link would be done to save space. - Fix a related build-id 'perf test' entry that checked that permission when caching PE (Portable Executable) files, used when profiling Windows executables under wine. - Sync the tools/ copies of kvm headers, build_bug.h, socket.h and arm64's cputype.h with the kernel sources. * tag 'perf-tools-fixes-for-v6.2-3-2023-01-19' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: perf test build-id: Fix test check for PE file perf buildid-cache: Fix the file mode with copyfile() while adding file to build-id cache perf expr: Prevent normalize() from reading into undefined memory in the expression lexer tools headers: Syncronize linux/build_bug.h with the kernel sources perf beauty: Update copy of linux/socket.h with the kernel sources tools headers arm64: Sync arm64's cputype.h with the kernel sources tools kvm headers arm64: Update KVM header from the kernel sources tools headers UAPI: Sync x86's asm/kvm.h with the kernel sources tools headers UAPI: Sync linux/kvm.h with the kernel sources
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.