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   Add convenience function that sends and receives at the same time.

   Add <sys/dkbad.h> include for struct dkbad (needed in DIOCSBAD).

   ld.elf_so: Fix ASSERT macro in xmalloc.c.

   1. Use #p, not "p", in the expansion of #define ASSERT(p), for C as of
      this millennium.

   2. Consistently make ASSERT(...) a single expression.

   Prompted by enabling MALLOC_DEBUG to track down issues in:

   PR lib/59751: dlclose is not MT-safe depending on the libraries
   unloaded

   Use memchr instead of strchr to search length limited buffer.

   ld.elf_so: Fix more races with recursive threaded dlopen/dlclose.

   1. When loading an object, keep track of a finer-grained state for
      relocation so that a concurrent _rtld_relocate_objects doesn't
      relocate an object too early (e.g., while waiting in
      _rtld_load_needed_objects for an object that is concurrently being
      dlclosed to finish before we can map it afresh) leading to
      spurious symbol resolution failures:

      - OBJRELOC_NONE (0): object has been created but the rtld state
        isn't enough to attempt relocation yet (either not all DT_NEEDED
        entries have been resolved, or the dldags lists have not yet
        been populated)

      - OBJRELOC_READY (1): object has been created and rtld state is
        ready to relocate (all DT_NEEDED entries have been resolved and
        the dldags lists have been populated), but object has not yet
        been relocated.


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   Calorie restriction for Sun2 install-related kernels.

   Make swap encryption truly optional, rather than just able to be
   default-disabled
   - New option VMSWAP_ENCRYPTION (enabled by default in conf/std along with
     VMSWAP)
   - Remove the "aes" attribute from VMSWAP and hand it to VMSWAP_ENCRYPTION.
   - Conditionalize all code and data related to swap encryption on the
     new VMSWAP_ENCRYPTION option.

   While the swap encryption code itself is not that large, it drags in
   the AES code if enabled.  If a constrained platform doesn't care about
   encrypted swap, this lets it not pay the cost for AES.

   Remove more IPI code when building uniprocessor kernels

   The "iic" instance does not depend on i2c_bitbang, so it should not
   express it as a dependency.  That's the responsibility of the back-ends
   that do require it.

   sharkiic uses i2c_bitbang, and thus should express it as a dependency.

   No need to include i2c_bitbang.h -- it's not used.

   Does not use i2c_bitbang, so should not depend on it.

   DBCS

   SBC SBCS MBCS

   kobj_load(): Consider ELF{32,64}_MACHDEP_FLAGS_OK().

   Elide some ipi references when building !MULTIPROCESSOR

   fix various typos in comments.

   Only declare LOCKSTAT_* variables when we are compiling for a MULTIPROCESSOR
   kernel.

   Update to Unicode 17

   Based on perl 5.44.0

   devhandle_impl_subclass(): make sure a handle never has the type INVALID.

   Elide subr_ipi.c for non-MP configurations.

   Elide subr_ipi.c for non-MP configurations.

   Slim this down for non-MP configurations.

   Slim this down for non-MP configurations.

   Don't bother signalling remote CPUs on non-MP configurations.

   Don't bother signalling remote CPUs on non-MP configurations.

   Don't bother with the "no disk label" message.  It's not particularly
   useful, and is downright confusing if the disk has some other sort of
   partition scheme (such at GPT).

   Elide subr_interrupt.c on non-MP configurations.

   s/sigature/signature/ in comment.

   s/Kensignton/Kensington/