From 9e78f6f6e7134a5f299cc8de77370218f8019237 Mon Sep 17 00:00:00 2001 From: Florian Weimer Date: Wed, 30 Nov 2016 15:59:57 +0100 Subject: Implement _dl_catch_error, _dl_signal_error in libc.so [BZ #16628] This change moves the main implementation of _dl_catch_error, _dl_signal_error to libc.so, where TLS variables can be used directly. This removes a writable function pointer from the rtld_global variable. For use during initial relocation, minimal implementations of these functions are provided in ld.so. These are eventually interposed by the libc.so implementations. This is implemented by compiling elf/dl-error-skeleton.c twice, via elf/dl-error.c and elf/dl-error-minimal.c. As a side effect of this change, the static version of dl-error.c no longer includes support for the _dl_signal_cerror/_dl_receive_error mechanism because it is only used in ld.so. --- nptl/nptl-init.c | 4 ---- 1 file changed, 4 deletions(-) (limited to 'nptl') diff --git a/nptl/nptl-init.c b/nptl/nptl-init.c index 48fab50..0fd54a0 100644 --- a/nptl/nptl-init.c +++ b/nptl/nptl-init.c @@ -456,10 +456,6 @@ __pthread_initialize_minimal_internal (void) lll_unlock (__default_pthread_attr_lock, LLL_PRIVATE); #ifdef SHARED - /* Transfer the old value from the dynamic linker's internal location. */ - *__libc_dl_error_tsd () = *(*GL(dl_error_catch_tsd)) (); - GL(dl_error_catch_tsd) = &__libc_dl_error_tsd; - /* Make __rtld_lock_{,un}lock_recursive use pthread_mutex_{,un}lock, keep the lock count from the ld.so implementation. */ GL(dl_rtld_lock_recursive) = (void *) __pthread_mutex_lock; -- cgit v1.1