Konstantin Belousov bd6060a1c6 Switch libc from using _sig{procmask,action,suspend} symbols, which ... 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		2015-08-29 14:25:01 +00:00
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creat.2
creat.c	Reduce the size of the interposing table and amount of	2015-01-11 22:16:31 +00:00
gethostid.3
gethostid.c
getwd.c
killpg.2
killpg.c
Makefile.inc	Replace use of ${.CURDIR} by ${LIBC_SRCTOP} and define ${LIBC_SRCTOP}	2014-03-04 02:19:39 +00:00
sethostid.c
setpgrp.c
setrgid.c
setruid.3
setruid.c
sigcompat.c	Switch libc from using _sig{procmask,action,suspend} symbols, which	2015-08-29 14:25:01 +00:00
sigpause.2
sigsetmask.2
sigvec.2
Symbol.map	Reduce the size of the interposing table and amount of	2015-01-11 22:16:31 +00:00