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authorTimo Teräs <timo.teras@iki.fi>2010-04-22 11:06:41 +0000
committerAustin Foxley <austinf@cetoncorp.com>2010-04-22 08:54:10 -0700
commit279c728ee62e53eb055227695bc6fafb31a3a5f1 (patch)
treed7ceb8ed28bec1266dfcfac8af1501948b8f9bda /docs/wchar_and_locale.txt
parentb93b98daf0dd45ac52f99fc4d906e5926cdd5239 (diff)
nptl: fix libc internal, dynamically enabled locking
Final iteration to fix libc internal locking if libpthread is pulled in by dlopen call (directly or indirectly). We cannot really use the weak symbol trick for shared build, since the symbols won't get refreshed if libpthread is pulled in dynamically. In glibc, they have #ifdef SHARED magic to either use pthread_functions table, or weaks. But as we shared object files with both builds, this does not sounds good either. The reintroduces the libc weaks.c, but uses them now only with static build. For dynamic build, we still use the symbols with same name, but provide weaks in forward.c so they end up dereferencing the pthread_functions table indirectly if we are not linked to libpthread. Mutex initialization is hard coded as inline, as it needs to happen even if libpthread is not initially loaded. Signed-off-by: Timo Teräs <timo.teras@iki.fi> Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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