CVS log for src/include/tib.h

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Default branch: MAIN
Current tag: OPENBSD_6_1_BASE

Revision 1.3 / (download) - annotate - [select for diffs], Sat May 7 19:05:21 2016 UTC (8 years ago) by guenther
Branch: MAIN
CVS Tags: OPENBSD_6_1_BASE, OPENBSD_6_1, OPENBSD_6_0_BASE, OPENBSD_6_0
Changes since 1.2: +52 -47 lines
Diff to previous 1.2 (colored)

Use a Thread Information Block in both single and multi-threaded programs.
This stores errno, the cancelation flags, and related bits for each thread
and is allocated by ld.so or libc.a.  This is an ABI break from 5.9-stable!

Make libpthread dlopen'able by moving the cancelation wrappers into libc
and doing locking and fork/errno handling via callbacks that libpthread
registers when it first initializes.  'errno' *must* be declared via
<errno.h> now!

Clean up libpthread's symbol exports like libc.

On powerpc, offset the TIB/TCB/TLS data from the register per the ELF spec.

Testing by various, particularly sthen@ and patrick@
ok kettenis@

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