diff options
| author | Alexandre Oliva <aoliva@redhat.com> | 2017-02-03 20:35:16 -0500 |
|---|---|---|
| committer | Carlos O'Donell <carlos@systemhalted.org> | 2017-02-03 21:34:14 -0500 |
| commit | d675eaf7d99096a952c1d140abfed82c939fb259 (patch) | |
| tree | aa4d46c8e5d704b3a8dfa8b38765e2710adccff2 /ChangeLog | |
| parent | 33d7e138ca63b4091bba840c609a95cdcc56c10e (diff) | |
| download | glibc-d675eaf7d99096a952c1d140abfed82c939fb259.tar.xz glibc-d675eaf7d99096a952c1d140abfed82c939fb259.zip | |
Bug 20915: Do not initialize DTV of other threads.
In _dl_nothread_init_static_tls() and init_one_static_tls() we must not
touch the DTV of other threads since we do not have ownership of them.
The DTV need not be initialized at this point anyway since only LD/GD
accesses will use them. If LD/GD accesses occur they will take care to
initialize their own thread's DTV.
Concurrency comments were removed from the patch since they need to be
reworked along with a full description of DTV ownership and when it is
or is not safe to modify these structures.
Alexandre Oliva's original patch and discussion:
https://sourceware.org/ml/libc-alpha/2016-09/msg00512.html
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 9 |
1 files changed, 9 insertions, 0 deletions
@@ -1,3 +1,12 @@ +2017-02-03 Alexandre Oliva <aoliva@redhat.com> + Florian Weimer <fweimer@redhat.com> + Carlos O'Donell <carlos@redhat.com> + + [BZ #20915] + * elf/dl-reloc.c (_dl_nothread_init_static_tls): + Do not initialize DTV. + * nptl/allocatestack.c (init_one_static_tls): Likewise. + 2017-02-03 David S. Miller <davem@davemloft.net> * sysdeps/sparc/sparc64/fpu/multiarch/s_fmax-vis3.S: Remove file. |