CVS commit: src/libexec/ld.elf_so

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Tue Jul 23 22:00:00 UTC 2024

Modified Files:
        src/libexec/ld.elf_so: tls.c

Log Message:
ld.elf_so: Fix off-by-one error in common __tls_get_addr.

DTV_MAX_INDEX(dtv) is an _inclusive_ upper bound, i.e., the actual
maximum value of the allowed indices.  It is not an exclusive upper
bound -- it is not the number of allowed indices.

This off-by-one doesn't hurt correctness, but it may hurt performance
by using the slow path when the fast path would be safe.

Found by pho@ in PR lib/58154.


To generate a diff of this commit:
cvs rdiff -u -r1.21 -r1.22 src/libexec/ld.elf_so/tls.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.