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| author | Florian Weimer <fweimer@redhat.com> | 2021-04-21 19:49:50 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2021-04-21 19:49:50 +0200 |
| commit | 1d95b035c721908d3bcbbca9e8d3a5e55a24c09e (patch) | |
| tree | acc915c7a01fc6ad5572767b483cf6cfc9c9118b /nptl/unwind.c | |
| parent | 3fec7f18bfcb7044e813a12e19c3c98eb8387e26 (diff) | |
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nptl: Move __pthread_unwind_next into libc
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>
Diffstat (limited to 'nptl/unwind.c')
| -rw-r--r-- | nptl/unwind.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/nptl/unwind.c b/nptl/unwind.c index 9c7ed7d7ca..f50997f728 100644 --- a/nptl/unwind.c +++ b/nptl/unwind.c @@ -25,6 +25,7 @@ #include "pthreadP.h" #include <libc-diag.h> #include <jmpbuf-unwind.h> +#include <shlib-compat.h> #ifdef _STACK_GROWS_DOWN # define FRAME_LEFT(frame, other, adj) \ @@ -134,15 +135,19 @@ __pthread_unwind (__pthread_unwind_buf_t *buf) /* We better do not get here. */ abort (); } -hidden_def (__pthread_unwind) - +libc_hidden_def (__pthread_unwind) void __cleanup_fct_attribute __attribute ((noreturn)) -__pthread_unwind_next (__pthread_unwind_buf_t *buf) +___pthread_unwind_next (__pthread_unwind_buf_t *buf) { struct pthread_unwind_buf *ibuf = (struct pthread_unwind_buf *) buf; __pthread_unwind ((__pthread_unwind_buf_t *) ibuf->priv.data.prev); } -hidden_def (__pthread_unwind_next) +versioned_symbol (libc, ___pthread_unwind_next, __pthread_unwind_next, + GLIBC_2_34); +#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_3_3, GLIBC_2_34) +compat_symbol (libpthread, ___pthread_unwind_next, __pthread_unwind_next, + GLIBC_2_3_3); +#endif |