libctf: Handle CTFv3 containers

In general, the patch adds indirection to minimize the amount of code
that needs to know about differences between v2 and v3. Specifically,
some new ctf_get_ctt_* fu

libctf: Handle CTFv3 containers

In general, the patch adds indirection to minimize the amount of code
that needs to know about differences between v2 and v3. Specifically,
some new ctf_get_ctt_* functions are added, and new LCTF_* macros are
added to use the underlying container's version to do the right thing.

CTF containers can have parent/child relationships, wherein a type ID in
one container refers to a type in the parent. It is permitted for the
parent and child to have different versions.

MFC after: 1 month
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D34363

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MFH

Sponsored by: Rubicon Communications, LLC (netgate.com)

Merge ^/head r363989 through r364034.

Fix cddl tools bootstrapping on macOS and Linux

Reviewed By: brooks
Differential Revision: https://reviews.freebsd.org/D25979

libctf: Appease Coverity overrun warnings

Rather than zeroing and reading into the a smaller union member the full
union size, just zero and read directly into the union.

No functional change inten

libctf: Appease Coverity overrun warnings

Rather than zeroing and reading into the a smaller union member the full
union size, just zero and read directly into the union.

No functional change intended.

Reported by: Coverity
Sponsored by: Dell EMC Isilon

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Merge ^/head r314129 through r314177.

Fix a memory leak in an error case in libctf.

Submitted by: Tom Rix <trix@juniper.net>
MFC after: 1 week

Merge sync of head

MFhead @ r277403

Reintegrate head: r274132-r277384

Sponsored by: The FreeBSD Foundation

Mechanically convert cddl sun #ifdef's to illumos

Since the upstream for cddl code is now illumos not sun, mechanically
convert all sun #ifdef's to illumos #ifdef's which have been used in all
newer

Mechanically convert cddl sun #ifdef's to illumos

Since the upstream for cddl code is now illumos not sun, mechanically
convert all sun #ifdef's to illumos #ifdef's which have been used in all
newer code for some time.

Also do a manual pass to correct the use if #ifdef comments as per style(9)
as well as few uses of #if defined(__FreeBSD__) vs #ifndef illumos.

MFC after: 1 month
Sponsored by: Multiplay

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Merge from head@274682

Sync to HEAD@r272516.

IFC @r271887

Fix some incorrect endianness checks.

MFC after: 1 week
Sponsored by: EMC / Isilon Storage Division

Merge head r233826 through r256722.

IFC @256277

Approved by: ken (mentor)

IFC @ r255692

Comment out IA32_MISC_ENABLE MSR access - this doesn't exist on AMD.
Need to sort out how arch-specific MSRs will be handled.

Merge from head

IFC @ r255209

MFC

MFV r254746:

To quote original Illumos ticket:

libctf thinks that any ELF file containing more than 65536 sections is
corrupt, because it doesn't understand the SHN_XINDEX magic.

Illumos DTrace is

MFV r254746:

To quote original Illumos ticket:

libctf thinks that any ELF file containing more than 65536 sections is
corrupt, because it doesn't understand the SHN_XINDEX magic.

Illumos DTrace issues:
4005 libctf can't deal with extended sections

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Solaris has code which makes zlib optional, so they have to jump through
some hoops to get the compression functions. On FreeBSD have libz and
can just link against it.

This commit was generated by cvs2svn to compensate for changes in r178528,
which included commits to RCS files with non-trunk default branches.

This commit was generated by cvs2svn to compensate for changes in r178479,
which included commits to RCS files with non-trunk default branches.