K 10
svn:author
V 6
brooks
K 8
svn:date
V 27
2018-08-17T16:19:47.122893Z
K 7
svn:log
V 513
Rework rtld's TLS Variant I implementation to match r326794

The above commit fixed handling overaligned TLS segments in libc's
TLS Variant I implementation, but rtld provides its own implementation
for dynamically-linked executables which lacks these fixes.  Thus,
port these changes to rtld.

Submitted by:	James Clarke
Reviewed by:	kbowling
Testing byL	kbowling (powerpc64), br (riscv), kevans (armv7)
Obtained from:	CheriBSD
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D16510

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