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nptl: Move __pthread_unwind_next into libc

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It's necessary to stub out __libc_disable_asynccancel and
__libc_enable_asynccancel via rtld-stubbed-symbols because the new
direct references to the unwinder result in symbol conflicts when the
rtld exception handling from libc is linked in during the construction
of librtld.map.

unwind-forcedunwind.c is merged into unwind-resume.c.  libc now needs
the functions that were previously only used in libpthread.

The GLIBC_PRIVATE exports of __libc_longjmp and __libc_siglongjmp are
no longer needed, so switch them to hidden symbols.

The symbol __pthread_unwind_next has been moved using
scripts/move-symbol-to-libc.py.

Reviewed-by: Adhemerva Zanella  <adhemerval.zanella@linaro.org>
This commit is contained in:
Florian Weimer
2021-04-21 19:49:50 +02:00
parent 3fec7f18bf
commit 1d95b035c7
82 changed files with 126 additions and 189 deletions
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1
nptl/nptl-init.c
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@ -94,7 +94,6 @@ static const struct pthread_functions pthread_functions =
.ptr___pthread_getspecific = __pthread_getspecific,
.ptr___pthread_setspecific = __pthread_setspecific,
.ptr_nthreads = &__nptl_nthreads,
.ptr___pthread_unwind = &__pthread_unwind,
.ptr__nptl_deallocate_tsd = __nptl_deallocate_tsd,
.ptr__nptl_setxid = __nptl_setxid,
.ptr_set_robust = __nptl_set_robust