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d4145960e5
Because _LARGEFILE64_SOURCE is set in perf, file offset sizes can be 64 bits. If a workflow needs to open /proc/kcore on a 32 bit system (for example to decode Arm ETM kernel trace) then the size value will be wrapped to 32 bits in the function file_size() at this line: dso->data.file_size = st.st_size; Setting the file_size member to be u64 fixes the issue and allows /proc/kcore to be opened. Reported-by: Denis Nikitin <denik@chromium.org> Signed-off-by: James Clark <james.clark@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lore.kernel.org/lkml/20211021112700.112499-1-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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| drivers | ||
| fs | ||
| include | ||
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| kernel | ||
| lib | ||
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| .cocciconfig | ||
| .get_maintainer.ignore | ||
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| 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 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.