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authorNick Desaulniers2020-03-26 17:09:51 -0700
committerJonathan Corbet2020-03-27 10:50:01 -0600
commitabcb1e021ae5a36374c635eeaba5cec733169b78 (patch)
tree9a227dcb9b995a304d562649f246d982e7e7ebdc /Documentation/filesystems/qnx6.rst
parent19e91e543c82c5d7c5f0f1820ed60af1e88956e6 (diff)
Documentation: x86: exception-tables: document CONFIG_BUILDTIME_TABLE_SORT
Provide more information about __ex_table sorting post link. The exception tables and fixup tables use a commonly recurring pattern in the kernel of storing the address of labels as date in custom ELF sections, then finding these sections, iterating elements within them, and possibly revisiting them or modifying the data at these addresses. Sorting readonly arrays to minimize runtime penalties is quite clever. Suggested-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Link: https://lore.kernel.org/r/20200327000951.84071-1-ndesaulniers@google.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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