glibc/sysdeps/unix/sysv/linux/powerpc
Joseph Myers 4fa9b3bfe6 Fix mcontext_t sigcontext namespace (bug 21457).
This patch completes the ucontext.h namespace fixes by fixing issues
related to the use of struct sigcontext as mcontext_t, and inclusion
of <bits/sigcontext.h> even when struct sigcontext is not so used.

Inclusion of <bits/sigcontext.h> by <sys/ucontext.h> is removed; the
way to get the sigcontext structure is by including <signal.h> (in a
context where __USE_MISC is defined); the sysdeps/generic version of
sys/ucontext.h keeps the inclusion by necessity, with a comment about
how this is not namespace-clean, but the only configuration that used
it, MicroBlaze, gets its own version of the header in this patch.
Where mcontext_t was typedefed to struct sigcontext, the contents of
struct sigcontext are inserted (with appropriate namespace handling to
prefix fields with __ when __USE_MISC is not defined); review should
check that this has been done correctly in each case, whether the
definition of struct sigcontext comes from glibc headers or from the
Linux kernel.  This changes C++ name mangling on affected
architectures (which do not include x86_64/x86).

Tested for x86_64, and with build-many-glibcs.py.

2017-08-14  Joseph Myers  <joseph@codesourcery.com>

	[BZ #21457]
	* sysdeps/arm/sys/ucontext.h: Do not include <bits/sigcontext.h>.
	* sysdeps/generic/sys/ucontext.h: Add comment about use of struct
	sigcontext and namespace requirements.
	* sysdeps/i386/sys/ucontext.h: Do not include <bits/sigcontext.h>.
	* sysdeps/m68k/sys/ucontext.h: Likewise.
	* sysdeps/mips/sys/ucontext.h: Likewise.  Include <bits/types.h>.
	* sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): Define earlier.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	* sysdeps/unix/sysv/linux/aarch64/ucontext_i.sym (oEXTENSION): Use
	__glibc_reserved1 instead of __reserved.
	* sysdeps/unix/sysv/linux/alpha/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): Define earlier.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	* sysdeps/unix/sysv/linux/alpha/ucontext-offsets.sym: Use
	mcontext_t instead of struct sigcontext.
	* sysdeps/unix/sysv/linux/arm/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): Define earlier.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	* sysdeps/unix/sysv/linux/hppa/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): Define earlier.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	* sysdeps/unix/sysv/linux/ia64/makecontext.c (__makecontext): Use
	mcontext_t instead of struct sigcontext.
	* sysdeps/unix/sysv/linux/ia64/sigcontext-offsets.sym: Use
	mcontext_t instead of struct sigcontext.
	* sysdeps/unix/sysv/linux/ia64/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): New macro.
	(struct __ia64_fpreg_mcontext): New type.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	(_SC_GR0_OFFSET): Use mcontext_t instead of struct sigcontext.
	(uc_sigmask): Define using __ctx.
	(uc_stack): Likewise.
	* sysdeps/unix/sysv/linux/ia64/sys/procfs.h: Include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/ia64/sys/ptrace.h: Likewise.
	* sysdeps/unix/sysv/linux/m68k/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/microblaze/sys/ucontext.h: New file.
	* sysdeps/unix/sysv/linux/mips/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/nios2/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/s390/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/sh/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/sparc/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	* sysdeps/unix/sysv/linux/tile/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.
	(__ctx): Define earlier.
	(mcontext_t): Define structure contents rather than using struct
	sigcontext.
	* sysdeps/unix/sysv/linux/x86/sys/ucontext.h: Do not include
	<bits/sigcontext.h>.  Include <bits/types.h>.
	* conform/Makefile (test-xfail-XPG42/signal.h/conform): Remove.
	(test-xfail-XPG42/sys/wait.h/conform): Likewise.
	(test-xfail-XPG42/ucontext.h/conform): Likewise.
	(test-xfail-UNIX98/signal.h/conform): Likewise.
	(test-xfail-UNIX98/sys/wait.h/conform): Likewise.
	(test-xfail-UNIX98/ucontext.h/conform): Likewise.
	(test-xfail-XOPEN2K/signal.h/conform): Likewise.
	(test-xfail-XOPEN2K/sys/wait.h/conform): Likewise.
	(test-xfail-XOPEN2K/ucontext.h/conform): Likewise.
	(test-xfail-POSIX2008/signal.h/conform): Likewise.
	(test-xfail-POSIX2008/sys/wait.h/conform): Likewise.
	(test-xfail-XOPEN2K8/signal.h/conform): Likewise.
	(test-xfail-XOPEN2K8/sys/wait.h/conform): Likewise.
2017-08-30 22:02:04 +00:00
..
bits Split up bits/sigstack.h. 2017-05-19 20:35:07 +00:00
powerpc32 Remove cancellation support for syscall generation 2017-08-24 14:58:35 -03:00
powerpc64 Remove cancellation support for syscall generation 2017-08-24 14:58:35 -03:00
powerpc64le powerpc64le: Enable float128 2017-06-26 15:04:47 -03:00
sys Fix mcontext_t sigcontext namespace (bug 21457). 2017-08-30 22:02:04 +00:00
arch-fork.h Split arch-fork.h from fork.h 2014-05-16 11:17:41 -07:00
configure Move architecture cases out of sysdeps/unix/sysv/linux/configure.ac. 2014-06-24 20:53:03 +00:00
configure.ac Move architecture cases out of sysdeps/unix/sysv/linux/configure.ac. 2014-06-24 20:53:03 +00:00
dl-brk.S
dl-cache.h
dl-static.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-sysdep.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
elision-conf.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
elision-conf.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
elision-lock.c powerpc: Fix write-after-destroy in lock elision [BZ #20822] 2017-01-03 17:21:41 -02:00
elision-timed.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
elision-trylock.c powerpc: Fix write-after-destroy in lock elision [BZ #20822] 2017-01-03 17:21:41 -02:00
elision-unlock.c powerpc: Fix adapt_count update in __lll_unlock_elision 2017-01-20 16:40:30 -02:00
force-elision.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
get_clockfreq.c Consolidate non cancellable open call 2017-08-17 16:50:35 -03:00
get_timebase_freq.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
getdents64.c
getmsg.c
gettimeofday.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
htm.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Implies NPTL is no longer an add-on! 2014-07-07 09:29:06 -07:00
init-first.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ioctl.c Clean pthread functions namespaces for C11 threads 2017-06-23 17:38:17 -03:00
ipc_priv.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
kernel_termios.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
kernel-features.h Simplify accept4, recvmmsg, sendmmsg code. 2017-05-09 21:59:36 +00:00
ldconfig.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ldd-rewrite.sed
ldsodefs.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
libc-start.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
libc-start.h powerpc: Fix float128 IFUNC relocations [BZ #21707] 2017-07-17 17:49:26 -03:00
libc-vdso.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
lowlevellock.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Makefile Remove abi-*-options compiler flags 2017-08-28 17:16:53 +02:00
nldbl-abi.h
profil-counter.h
pt-longjmp.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
pthread_attr_setstack.c PowerPC: Move remaining nptl/sysdeps/unix/sysv/linux/powerpc/ files. 2014-05-26 11:45:14 -05:00
pthread_attr_setstacksize.c PowerPC: Move remaining nptl/sysdeps/unix/sysv/linux/powerpc/ files. 2014-05-26 11:45:14 -05:00
pthread_mutex_cond_lock.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
pthread_mutex_lock.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
pthread_mutex_timedlock.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
pthread_mutex_trylock.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
putmsg.c
readdir64_r.c
readdir64.c
readelflib.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
rt-sysdep.c
sigcontextinfo.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
syscall.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sysconf.c powerpc: fix sysconf support for cache geometries 2017-06-23 09:10:32 -03:00
sysdep-cancel.h Remove cancellation support for syscall generation 2017-08-24 14:58:35 -03:00
sysdep.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
test-gettimebasefreq.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
test-powerpc-linux-sysconf.c powerpc: add sysconf support for cache geometries 2017-06-09 14:36:22 -03:00
time.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Versions Revert {send,sendm,recv,recvm}msg conformance changes 2016-06-10 11:58:16 -03:00