glibc

Tree: 2c7bbfaf4e

Joseph Myers 67f0aff0c6 Fix sigval namespace (bug 21944). XPG4.2 defines the siginfo_t type, but not union sigval or its contents (which were added in the 1993 edition of POSIX.1), resulting in namespace violations for sigval, sival_int and sival_ptr for signal.h and sys/wait.h for that standard because those headers incorrectly expose those names in that case. This patch fixes this problem. The public type in this case is union sigval, but various places in the headers use the sigval_t name for it; direct uses of union sigval are already properly guarded or in headers not in XPG4.2. Now, sigval_t, although not a standard name, does seem to be widely used outside glibc. The approach taken by this patch is to make installed headers use the name __sigval_t instead. __sigval_t is then defined to either union sigval or union __sigval (where union __sigval has __-prefixed member names as well), depending on whether there are any namespace issues with the union sigval name and its members. In the case where union __sigval is used, sigval_t is not defined at all, to avoid the problem of sigval_t having a C++ mangled name that depends on feature test macros. sigval_t is still defined by signal.h if __USE_MISC (reflecting the nonstandard nature of that name). Tested for x86_64. [BZ #21944] * signal/bits/types/__sigval_t.h: New file. * signal/Makefile (headers): Add bits/types/__sigval_t.h. * signal/bits/types/sigval_t.h: Include <bits/types/__sigval_t.h> and define sigval_t using __sigval_t. * include/bits/types/__sigval_t.h: New file. * bits/types/sigevent_t.h: Include <bits/types/__sigval_t.h> instead of <bits/types/__sigval_t.h>. (struct sigevent): Use __sigval_t instead of sigval_t. * bits/types/siginfo_t.h: Include <bits/types/__sigval_t.h> instead of <bits/types/__sigval_t.h>. (siginfo_t): Use __sigval_t instead of sigval_t. * sysdeps/unix/sysv/linux/bits/types/sigevent_t.h: Include <bits/types/__sigval_t.h> instead of <bits/types/__sigval_t.h>. (struct sigevent): Use __sigval_t instead of sigval_t. * sysdeps/unix/sysv/linux/bits/types/siginfo_t.h: Include <bits/types/__sigval_t.h> instead of <bits/types/__sigval_t.h>. (siginfo_t): Use __sigval_t instead of sigval_t. * signal/signal.h [__USE_MISC]: Include <bits/types/sigval_t.h>.		9 years ago
..
bits/types	Fix sigval namespace (bug 21944).	9 years ago
sys	initial import	32 years ago
Makefile	Fix sigval namespace (bug 21944).	9 years ago
Versions	Remove __need macros from signal.h.	9 years ago
allocrtsig.c	Update copyright dates with scripts/update-copyrights.	9 years ago
kill.c	Update copyright dates with scripts/update-copyrights.	9 years ago
killpg.c	Update copyright dates with scripts/update-copyrights.	9 years ago
raise.c	Update copyright dates with scripts/update-copyrights.	9 years ago
sigaction.c	Update copyright dates with scripts/update-copyrights.	9 years ago
sigaddset.c	Remove __need macros from signal.h.	9 years ago
sigaltstack.c	Fix struct sigaltstack namespace (bug 21517).	9 years ago
sigandset.c	Remove __need macros from signal.h.	9 years ago
sigblock.c	Update copyright dates with scripts/update-copyrights.	9 years ago
sigdelset.c	Remove __need macros from signal.h.	9 years ago
sigempty.c	Update copyright dates with scripts/update-copyrights.	9 years ago
sigfillset.c	Update copyright dates with scripts/update-copyrights.	9 years ago
siggetmask.c	Update copyright dates with scripts/update-copyrights.	9 years ago
sighold.c	Update copyright dates with scripts/update-copyrights.	9 years ago
sigignore.c	Update copyright dates with scripts/update-copyrights.	9 years ago
sigintr.c	Update copyright dates with scripts/update-copyrights.	9 years ago
sigisempty.c	Remove __need macros from signal.h.	9 years ago
sigismem.c	Remove __need macros from signal.h.	9 years ago
signal.c	Update copyright dates with scripts/update-copyrights.	9 years ago
signal.h	Fix sigval namespace (bug 21944).	9 years ago
sigorset.c	Remove __need macros from signal.h.	9 years ago
sigpause.c	Update copyright dates with scripts/update-copyrights.	9 years ago
sigpending.c	Update copyright dates with scripts/update-copyrights.	9 years ago
sigprocmask.c	Update copyright dates with scripts/update-copyrights.	9 years ago
sigqueue.c	Update copyright dates with scripts/update-copyrights.	9 years ago
sigrelse.c	Update copyright dates with scripts/update-copyrights.	9 years ago
sigreturn.c	Update copyright dates with scripts/update-copyrights.	9 years ago
sigset.c	Update copyright dates with scripts/update-copyrights.	9 years ago
sigsetmask.c	Update copyright dates with scripts/update-copyrights.	9 years ago
sigsetops.c	Remove __need macros from signal.h.	9 years ago
sigstack.c	Update copyright dates with scripts/update-copyrights.	9 years ago
sigsuspend.c	Update copyright dates with scripts/update-copyrights.	9 years ago
sigtimedwait.c	Update copyright dates with scripts/update-copyrights.	9 years ago
sigvec.c	Update copyright dates with scripts/update-copyrights.	9 years ago
sigwait.c	Update copyright dates with scripts/update-copyrights.	9 years ago
sigwaitinfo.c	Update copyright dates with scripts/update-copyrights.	9 years ago
sysv_signal.c	Update copyright dates with scripts/update-copyrights.	9 years ago
tst-raise.c	Update copyright dates with scripts/update-copyrights.	9 years ago
tst-signal.c	* malloc/memusagestat.c (main): Use return instead of exit to	26 years ago
tst-sigset.c	2003-03-31 Roland McGrath <roland@redhat.com>	23 years ago
tst-sigset2.c	[BZ #1951]	20 years ago
tst-sigsimple.c	Update copyright dates with scripts/update-copyrights.	9 years ago