path: root/open_issues/glibc_tls_segment_tcbhead_t_dtv_offset.mdwn
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author <diana@web>2015-02-16 20:08:03 +0100
committerGNU Hurd web pages engine <>2015-02-16 20:08:03 +0100
commit95878586ec7611791f4001a4ee17abf943fae3c1 (patch)
tree847cf658ab3c3208a296202194b16a6550b243cf /open_issues/glibc_tls_segment_tcbhead_t_dtv_offset.mdwn
parent8063426bf7848411b0ef3626d57be8cb4826715e (diff)
rename open_issues.mdwn to service_solahart_jakarta_selatan__082122541663.mdwn
Diffstat (limited to 'open_issues/glibc_tls_segment_tcbhead_t_dtv_offset.mdwn')
1 files changed, 0 insertions, 28 deletions
diff --git a/open_issues/glibc_tls_segment_tcbhead_t_dtv_offset.mdwn b/open_issues/glibc_tls_segment_tcbhead_t_dtv_offset.mdwn
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--- a/open_issues/glibc_tls_segment_tcbhead_t_dtv_offset.mdwn
+++ /dev/null
@@ -1,28 +0,0 @@
-[[!meta copyright="Copyright © 2010 Free Software Foundation, Inc."]]
-[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
-id="license" text="Permission is granted to copy, distribute and/or modify this
-document under the terms of the GNU Free Documentation License, Version 1.2 or
-any later version published by the Free Software Foundation; with no Invariant
-Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license
-is included in the section entitled [[GNU Free Documentation
-[[!tag open_issue_glibc]]
-IRC, unknown channel, unknown date.
- <youpi> you can hardcode DTV_OFFSET as 4 for now
- <youpi> it's the offset of the dtv field in the tcbhead_t structure from hurd/libpthread
- <tschwinge> youpi: May very well be that I'm misunderstanding something, but wouldn't it rather be the offset of tcb in __pthread + the offset of dtv in tcbhead_t (which indeed is 4)?
- <youpi> what you don't know is that DTV_OFFSET is not relative to __pthread, but to the tls segment
- <tschwinge> Oh, aha. Thanks.
- <youpi> and drepper abused the fact that in nptl __pthread appears at the start of the tls segment
-kFreeBSD, glibc:
- ++#if 0
- + DTV_OFFSET offsetof(struct pthread,
- ++#else
- ++DTV_OFFSET offsetof(struct _pthread_descr_struct,
- ++#endif