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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bt_close.c
bt_conv.c
bt_debug.c	Minor changes from Berkeley DB 1.86 and further improvements from OpenBSD.	2009-03-28 07:31:02 +00:00
bt_delete.c	Style changes (including additional casts to shut up warnings). This	2009-03-04 00:58:04 +00:00
bt_get.c
bt_open.c	Switch libc from using _sig{procmask,action,suspend} symbols, which	2015-08-29 14:25:01 +00:00
bt_overflow.c	Our realloc(3) and reallocf(3) can handle NULL, which turns it into a	2009-03-05 00:57:01 +00:00
bt_page.c	Minor changes from Berkeley DB 1.86 and further improvements from OpenBSD.	2009-03-28 07:31:02 +00:00
bt_put.c	Let __bt_put() accept the R_SETCURSOR flag, as stated in the dbopen(3) manpage.	2014-03-06 07:44:45 +00:00
bt_search.c
bt_seq.c	Style changes (including additional casts to shut up warnings). This	2009-03-04 00:58:04 +00:00
bt_split.c	Fix clang warnings.	2011-06-18 13:56:33 +00:00
bt_utils.c	Our realloc(3) and reallocf(3) can handle NULL, which turns it into a	2009-03-05 00:57:01 +00:00
btree.h	Style changes (including additional casts to shut up warnings). This	2009-03-04 00:58:04 +00:00
extern.h
Makefile.inc	Replace use of ${.CURDIR} by ${LIBC_SRCTOP} and define ${LIBC_SRCTOP}	2014-03-04 02:19:39 +00:00