Bug 102879 - librt.so.1 in /usr/lib
librt.so.1 in /usr/lib
Status: CLOSED DUPLICATE of bug 102853
Product: Red Hat Raw Hide
Classification: Retired
Component: glibc (Show other bugs)
1.0
All Linux
medium Severity medium
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Assigned To: Jakub Jelinek
Brian Brock
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Depends On:
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Reported: 2003-08-22 05:05 EDT by Alexander Larsson
Modified: 2016-11-24 09:56 EST (History)
1 user (show)

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Last Closed: 2006-02-21 13:58:12 EST
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Description Alexander Larsson 2003-08-22 05:05:40 EDT
There was a change in glibc somewhere between 2.3.2-57 and 2.3.2-66 that
adds /usr/lib/librt.so.1 to glibc-devel. The file is just a symlink to
librt.so. This change seems wrong to me, and its causing breakage with
TLS.

I have an app not linking to librt, but it dlopens a library that links
to librt.so.1. The app gets the tls libc at /lib/tls/libc.so.6, but when
resolving the librt.so.1 DT_NEEDED it first looks in the system library,
finding /usr/lib/librt.so.1. However, following this symlink gets you
/lib/librt.so.1 which is the non-TLS version of librt. This means we
have mismatched librt and libc versions, causing:

/usr/lib/librt.so.1: symbol __librt_disable_asynccancel, version
GLIBC_PRIVATE not defined in file libc.so.6 with link time reference

Having the soname librt in /usr/lib just seems wrong to me. What was the
reason for introducing it?
Comment 1 Nils Philippsen 2003-08-22 05:50:57 EDT

*** This bug has been marked as a duplicate of 102853 ***
Comment 2 Red Hat Bugzilla 2006-02-21 13:58:12 EST
Changed to 'CLOSED' state since 'RESOLVED' has been deprecated.

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