Page MenuHomeFreeBSD

libc: Reassociate pointer arithmetic in __libc_tls_get_addr
ClosedPublic

Authored by jrtc27 on May 7 2025, 2:59 AM.
Tags
None
Referenced Files
Unknown Object (File)
Mon, Mar 23, 4:18 PM
Unknown Object (File)
Sun, Mar 22, 10:33 PM
Unknown Object (File)
Sun, Mar 22, 5:36 AM
Unknown Object (File)
Sun, Mar 22, 1:39 AM
Unknown Object (File)
Sat, Mar 21, 5:41 PM
Unknown Object (File)
Sat, Mar 21, 3:46 PM
Unknown Object (File)
Sun, Mar 15, 8:53 AM
Unknown Object (File)
Sun, Mar 15, 1:50 AM
Subscribers

Details

Summary

Rather than compute a biased pointer only to then un-bias it again, un-bias
the offset before adding it to the DTV entry.

This mirrors rtld-elf commit d71c97026366 ("rtld-elf: Push
TLS_DTV_OFFSET into tls_get_addr_common's arguments")

Diff Detail

Repository
rG FreeBSD src repository
Lint
Lint Not Applicable
Unit
Tests Not Applicable