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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
argp Remove __need macros from errno.h (__need_Emath, __need_error_t). 2017-06-14 08:14:34 -04:00
assert Fix position of tests-unsupported definition in assert/Makefile. 2017-08-22 00:30:51 +00:00
benchtests benchtests: Do not compile benchmark objects as libc modules [BZ #21864] 2017-08-21 19:28:54 +02:00
bits Fix sigval namespace (bug 21944). 2017-08-16 20:33:59 +00:00
catgets Don't compile non-lib modules as lib modules [BZ #21864] 2017-08-21 05:34:54 -07:00
conform Fix mcontext_t sigcontext namespace (bug 21457). 2017-08-30 22:02:04 +00:00
crypt Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
csu Mark __libc_multiple_libcs with attribute_hidden [BZ #18822] 2017-08-21 05:32:39 -07:00
ctype Use locale_t, not __locale_t, throughout glibc 2017-06-20 20:30:06 -04:00
debug Move ____longjmp_chk prototype to include/setjmp.h 2017-08-20 06:30:46 -07:00
dev Rename xlocale.h to bits/types/__locale_t.h. 2017-06-20 20:28:11 -04:00
dirent support: Prevent multiple deletion of temporary files 2017-05-08 16:20:40 +02:00
dlfcn Miscellaneous low-risk changes preparing for _ISOMAC testsuite. 2017-03-01 20:32:50 -05:00
elf Don't compile non-lib modules as lib modules [BZ #21864] 2017-08-21 05:34:54 -07:00
gmon Consolidate non cancellable writev call 2017-08-21 15:37:45 -03:00
gnulib Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
grp Mark internal nss symbols with attribute_hidden [BZ #18822] 2017-08-21 05:31:19 -07:00
gshadow Remove __need macros from stdio.h and wchar.h. 2017-06-08 13:58:17 -04:00
hesiod Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
hurd hurd: Remove duplicate symbol version 2017-08-28 14:19:55 +02:00
iconv iconv_open: Fix heap corruption on gconv_init failure [BZ #22026] 2017-08-29 17:33:58 +02:00
iconvdata Increase some test timeouts. 2017-07-06 17:01:03 +00:00
include Consolidate remaning non cancellable definitions 2017-08-23 10:47:03 -03:00
inet NSS: Replace exported NSS lookup functions with stubs [BZ #21962] 2017-08-14 18:13:42 +02:00
intl Consolidate non cancellable close call 2017-08-18 18:38:55 -03:00
io Consolidate non cancellable close call 2017-08-18 18:38:55 -03:00
libidn Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
libio Consolidate non cancellable waitpid call 2017-08-21 15:37:45 -03:00
locale Add locale for mfe_MU 2017-08-29 13:56:41 +02:00
localedata Use “.” in thousands_sep in the ca_ES locale 2017-08-30 15:19:39 +02:00
login Consolidate remaning non cancellable definitions 2017-08-23 10:47:03 -03:00
mach hurd: Remove duplicate symbol version 2017-08-28 14:19:55 +02:00
malloc dynarray: Set errno on overflow-induced allocation failure 2017-08-30 20:10:56 +02:00
manual malloc: Remove check_action variable [BZ #21754] 2017-08-30 20:08:34 +02:00
math Fix bits/math-finite.h _MSUF_ expansion namespace (bug 22028). 2017-08-29 14:15:37 +00:00
mathvec Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
misc Mark __libc_multiple_libcs with attribute_hidden [BZ #18822] 2017-08-21 05:32:39 -07:00
nis Consistently use uintN_t not u_intN_t everywhere. 2017-08-07 19:55:34 +00:00
nptl Do not scale NPTL tests with available number of CPUs 2017-08-30 16:20:31 +02:00
nptl_db Narrowing the visibility of libc-internal.h even further. 2017-03-01 20:33:46 -05:00
nscd Mark internal nss symbols with attribute_hidden [BZ #18822] 2017-08-21 05:31:19 -07:00
nss Don't compile non-lib modules as lib modules [BZ #21864] 2017-08-21 05:34:54 -07:00
po Fix spelling mistake in fr.po 2017-08-14 09:30:54 +02:00
posix Mark internal nss symbols with attribute_hidden [BZ #18822] 2017-08-21 05:31:19 -07:00
pwd Remove __need macros from stdio.h and wchar.h. 2017-06-08 13:58:17 -04:00
resolv Consolidate non cancellable writev call 2017-08-21 15:37:45 -03:00
resource Define struct rusage in sys/wait.h when required (bug 21575). 2017-06-19 11:59:19 +00:00
rt Remove __need macros from signal.h. 2017-05-20 19:04:43 -04:00
scripts build-many-glibcs.py: also build profiled objects 2017-07-08 21:09:03 +02:00
setjmp Remove __need macros from signal.h. 2017-05-20 19:04:43 -04:00
shadow Remove __need macros from stdio.h and wchar.h. 2017-06-08 13:58:17 -04:00
signal Fix sigval namespace (bug 21944). 2017-08-16 20:33:59 +00:00
socket __opensock: Remove internal_function attribute 2017-08-17 10:18:15 +02:00
soft-fp Narrowing the visibility of libc-internal.h even further. 2017-03-01 20:33:46 -05:00
stdio-common Hide internal printf functions [BZ #18822/21986] 2017-08-22 07:50:57 -07:00
stdlib 2017-08-29 Paul Pluzhnikov <ppluzhnikov@google.com> 2017-08-29 10:46:44 -07:00
streams Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
string string/stratcliff.c: Replace int with size_t [BZ #21982] 2017-08-23 08:23:02 -07:00
sunrpc Consolidate non cancellable close call 2017-08-18 18:38:55 -03:00
support rwlock: Fix explicit hand-over (bug 21298) 2017-07-28 00:23:58 -04:00
sysdeps Fix mcontext_t sigcontext namespace (bug 21457). 2017-08-30 22:02:04 +00:00
sysvipc Fix test-sysvsem on some platforms 2017-01-02 18:53:50 -02:00
termios Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
time Fix strftime build with GCC 8. 2017-06-27 17:12:13 +00:00
timezone zic: Use PRIdMAX to print line numbers 2017-07-25 12:34:14 +05:30
wcsmbs gconv: Consistently mangle NULL function pointers [BZ #22025] 2017-08-29 15:53:28 +02:00
wctype Use locale_t, not __locale_t, throughout glibc 2017-06-20 20:30:06 -04:00
.gitattributes Assume __NR_openat is always defined 2016-03-23 23:35:08 +01:00
.gitignore Add *.pyc to .gitignore 2015-05-18 15:26:26 +05:30
abi-tags Remove the bulk of the NaCl port. 2017-05-20 08:09:10 -04:00
aclocal.m4 gmon: Add test for basic mcount/gprof functionality 2017-08-15 15:49:45 +02:00
BUGS [BZ #5222] 2007-10-28 08:24:07 +00:00
ChangeLog Fix mcontext_t sigcontext namespace (bug 21457). 2017-08-30 22:02:04 +00:00
ChangeLog.1 Rotate ChangeLog correctly 2017-08-02 20:57:34 +05:30
ChangeLog.2 Rotate ChangeLog correctly 2017-08-02 20:57:34 +05:30
ChangeLog.3 Rotate ChangeLog correctly 2017-08-02 20:57:34 +05:30
ChangeLog.4 Rotate ChangeLog correctly 2017-08-02 20:57:34 +05:30
ChangeLog.5 Rotate ChangeLog correctly 2017-08-02 20:57:34 +05:30
ChangeLog.6 Rotate ChangeLog correctly 2017-08-02 20:57:34 +05:30
ChangeLog.7 Rotate ChangeLog correctly 2017-08-02 20:57:34 +05:30
ChangeLog.8 Rotate ChangeLog correctly 2017-08-02 20:57:34 +05:30
ChangeLog.9 Rotate ChangeLog correctly 2017-08-02 20:57:34 +05:30
ChangeLog.10 Rotate ChangeLog correctly 2017-08-02 20:57:34 +05:30
ChangeLog.11 Rotate ChangeLog correctly 2017-08-02 20:57:34 +05:30
ChangeLog.12 Rotate ChangeLog correctly 2017-08-02 20:57:34 +05:30
ChangeLog.13 Rotate ChangeLog correctly 2017-08-02 20:57:34 +05:30
ChangeLog.14 Rotate ChangeLog correctly 2017-08-02 20:57:34 +05:30
ChangeLog.15 Rotate ChangeLog correctly 2017-08-02 20:57:34 +05:30
ChangeLog.16 Rotate ChangeLog correctly 2017-08-02 20:57:34 +05:30
ChangeLog.17 Rotate ChangeLog correctly 2017-08-02 20:57:34 +05:30
ChangeLog.18 Rotate ChangeLog correctly 2017-08-02 20:57:34 +05:30
ChangeLog.old-ports Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-aarch64 Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-aix Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-alpha ChangeLog: fix BZ style to be consistent and match majority of existing code 2017-04-03 15:18:07 -04:00
ChangeLog.old-ports-am33 Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-arm Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-cris Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-hppa ChangeLog: fix BZ style to be consistent and match majority of existing code 2017-04-03 15:18:07 -04:00
ChangeLog.old-ports-ia64 Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-linux-generic Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-m68k Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-microblaze Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-mips ChangeLog: fix BZ style to be consistent and match majority of existing code 2017-04-03 15:18:07 -04:00
ChangeLog.old-ports-powerpc Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
ChangeLog.old-ports-tile Move ports/ChangeLog* files to ChangeLog.old-ports*, remove ports/ directory. 2014-04-30 10:40:29 -07:00
config.h.in i386: Do not set internal_function 2017-08-14 15:08:48 +02:00
config.make.in gmon: Add test for basic mcount/gprof functionality 2017-08-15 15:49:45 +02:00
configure gmon: Add test for basic mcount/gprof functionality 2017-08-15 15:49:45 +02:00
configure.ac Check linker support for INSERT in linker script 2017-08-04 12:17:30 -07:00
CONFORMANCE Move __STDC_* predefined macros from features.h to stdc-predef.h. 2012-02-22 12:53:04 +00:00
COPYING Update to latest versions of GPL-2.0 and LGPL-2.1 2013-09-09 12:52:48 +10:00
COPYING.LIB Update to latest versions of GPL-2.0 and LGPL-2.1 2013-09-09 12:52:48 +10:00
extra-lib.mk Rename cppflags-iterator.mk to libof-iterator.mk, remove extra-modules.mk. 2017-05-09 07:06:29 -04:00
gen-locales.mk Split locale generation snippet into a separate file 2015-05-13 13:05:28 +05:30
INSTALL Update contributors and latest gcc and binutils versions 2017-08-02 18:22:58 +05:30
libc-abis A few more archs have IFUNC support. 2010-03-17 02:43:12 -07:00
libof-iterator.mk Rename cppflags-iterator.mk to libof-iterator.mk, remove extra-modules.mk. 2017-05-09 07:06:29 -04:00
LICENSES Expand LICENSES file. 2012-12-05 21:56:15 +00:00
MAINTAINERS Add MAINTAINERS 2017-05-11 13:38:30 -04:00
Makeconfig Support mcount/gprof test with GCC defaulting to PIE 2017-08-17 04:56:01 -07:00
Makefile Suppress internal declarations for most of the testsuite. 2017-05-11 19:27:59 -04:00
Makefile.in New make target to only build benchmark binaries 2016-04-20 10:23:28 +05:30
Makerules Don't compile non-lib modules as lib modules [BZ #21864] 2017-08-21 05:34:54 -07:00
NAMESPACE Add and update many more entries. 2000-03-20 00:42:58 +00:00
NEWS Fix mcontext_t sigcontext namespace (bug 21457). 2017-08-30 22:02:04 +00:00
o-iterator.mk Fri Mar 17 12:58:37 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu> 1995-03-17 18:42:51 +00:00
README Require Linux kernel 3.2 or later on x86 / x86_64. 2017-05-08 10:45:20 +00:00
README.pretty-printers Fix mutex pretty printer test and pretty printer output. 2017-01-20 14:56:39 +01:00
README.tunables tunables: Clean up hooks to get and set tunables 2017-06-07 11:11:36 +05:30
Rules Suppress internal declarations for most of the testsuite. 2017-05-11 19:27:59 -04:00
shlib-versions Extend NSS test suite 2017-07-17 15:52:44 -04:00
test-skeleton.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
version.h Open master for development 2017-08-02 19:23:16 +05:30
WUR-REPORT * posix/unistd.h (setuid, setreuid, seteuid, setresuid): 2012-08-01 18:12:58 +02:00

This directory contains the sources of the GNU C Library.
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