bd6060a1c6
are aliases for the syscall stubs and are plt-interposed, to the libc-private aliases of internally interposed sigprocmask() etc. Since e.g. _sigaction is not interposed by libthr, calling signal() removes thr_sighandler() from the handler slot etc. The result was breaking signal semantic and rtld locking. The added __libc_sigprocmask and other symbols are hidden, they are not exported and cannot be called through PLT. The setjmp/longjmp functions for x86 were changed to use direct calls, and since PIC_PROLOGUE only needed for functional PLT indirection on i386, it is removed as well. The PowerPC bug of calling the syscall directly in the setjmp/longjmp implementation is kept as is. Reported by: Pete French <petefrench@ingresso.co.uk> Tested by: Michiel Boland <boland37@xs4all.nl> Reviewed by: jilles (previous version) Sponsored by: The FreeBSD Foundation MFC after: 1 week |
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|---|---|---|
| .. | ||
| isc | ||
| block_abi.h | ||
| compat.h | ||
| errlst.h | ||
| fpmath.h | ||
| libc_private.h | ||
| namespace.h | ||
| nscache.h | ||
| nscachedcli.h | ||
| nss_tls.h | ||
| port_after.h | ||
| port_before.h | ||
| reentrant.h | ||
| resolv_mt.h | ||
| spinlock.h | ||
| un-namespace.h | ||