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0bcec5321f
glibc/include/bits
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Joseph Myers 0bcec5321f Split up bits/sigstack.h. 
bits/sigstack.h contains four things: the legacy struct sigstack type,
the preferred stack_t type, the SS_* enum values and macros for signal
stack sizes.

These vary in different ways between glibc configurations; in
particular, the stack sizes vary much more than any of the other
pieces.  Furthermore, these pieces have different standard namespace
rules for when they should be visible (not currently visible in
conform/ results both because the relevant tests are XFAILed for
sys/ucontext.h namespace issues, and because some of the expectations
are incorrect in the same way as the headers, e.g. neither
expectations nor headers reflect that current POSIX no longer has
either the sigstack function or the sigstack structure).

To reduce duplication of identical definitions, and facilitate
namespace fixes without requiring the same feature test macro
conditions to be repeated in many versions of the same header, this
patch splits bits/sigstack.h up into four headers.  It keeps the stack
size macros, while new bits/types/struct_sigstack.h,
bits/types/stack_t.h and bits/ss_flags.h are added for the other
pieces.  bits/types/struct_sigstack.h is the same everywhere,
bits/types/stack_t.h has three variants different in the order of the
structure elements (generic = MIPS Linux, and other Linux), and
bits/ss_flags.h has generic and Linux variants.

This patch includes the new headers everywhere that included
<bits/sigstack.h>, so should cause no difference to what any public
header defines.  Subsequent namespace fixes would then remove or
condition some of those includes.

There should be no conflicts with Zack's changes to signal.h types,
beyond the trivial conflict of both making additions to
signal/Makefile's headers list; the two patches affect disjoint sets
of types and other definitions.

Tested for x86_64 and x86, and with build-many-glibcs.py.

	* bits/ss_flags.h: New file.
	* bits/types/stack_t.h: Likewise.
	* include/bits/types/struct_sigstack.h: Likewise.
	* signal/bits/types/struct_sigstack.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/ss_flags.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/types/stack_t.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/types/stack_t.h: Likewise.
	* signal/Makefile (headers): Add bits/types/struct_sigstack.h,
	bits/types/stack_t.h and bits/ss_flags.h.
	* signal/signal.h [__USE_XOPEN_EXTENDED || __USE_XOPEN2K8]:
	Include <bits/types/struct_sigstack.h>, <bits/types/stack_t.h> and
	<bits/ss_flags.h>.
	* bits/sigstack.h (struct sigstack): Remove.
	(stack_t): Likewise.
	(SS_ONSTACK): Likewise.
	(SS_DISABLE): Likewise.
	* sysdeps/unix/sysv/linux/aarch64/bits/sigstack.h
	(struct sigstack): Likewise.
	(stack_t): Likewise.
	(SS_ONSTACK): Likewise.
	(SS_DISABLE): Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/sigstack.h (struct sigstack):
	Likewise.
	(stack_t): Likewise.
	(SS_ONSTACK): Likewise.
	(SS_DISABLE): Likewise.
	* sysdeps/unix/sysv/linux/bits/sigstack.h (struct sigstack):
	Likewise.
	(stack_t): Likewise.
	(SS_ONSTACK): Likewise.
	(SS_DISABLE): Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/sigstack.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/bits/sigstack.h (struct sigstack):
	Likewise.
	(stack_t): Likewise.
	(SS_ONSTACK): Likewise.
	(SS_DISABLE): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/bits/sigstack.h
	(struct sigstack): Likewise.
	(stack_t): Likewise.
	(SS_ONSTACK): Likewise.
	(SS_DISABLE): Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/sigstack.h (struct sigstack):
	Likewise.
	(stack_t): Likewise.
	(SS_ONSTACK): Likewise.
	(SS_DISABLE): Likewise.
	* sysdeps/arm/sys/ucontext.h: Include
	<bits/types/struct_sigstack.h>, <bits/types/stack_t.h> and
	<bits/ss_flags.h>.
	* sysdeps/generic/sys/ucontext.h: Likewise.
	* sysdeps/i386/sys/ucontext.h: Likewise.
	* sysdeps/m68k/sys/ucontext.h: Likewise.
	* sysdeps/mips/sys/ucontext.h: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h: Likewise.
	* sysdeps/unix/sysv/linux/alpha/sys/ucontext.h: Likewise.
	* sysdeps/unix/sysv/linux/arm/sys/ucontext.h: Likewise.
	* sysdeps/unix/sysv/linux/hppa/sys/ucontext.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/bits/sigcontext.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/sys/ucontext.h: Likewise.
	* sysdeps/unix/sysv/linux/m68k/sys/ucontext.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/sys/ucontext.h: Likewise.
	* sysdeps/unix/sysv/linux/nios2/sys/ucontext.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/sys/ucontext.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/sys/ucontext.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sys/ucontext.h: Likewise.
	* sysdeps/unix/sysv/linux/tile/sys/ucontext.h: Likewise.
	* sysdeps/unix/sysv/linux/x86/sys/ucontext.h: Likewise.
2017-05-19 20:35:07 +00:00
..
types Split up bits/sigstack.h. 2017-05-19 20:35:07 +00:00
cmathcalls.h
dlfcn.h Add first fixes for conformtest for POSIX2008 2012-02-26 21:32:56 -05:00
error.h * misc/error.h: Use __const instead of const. 2007-10-07 17:29:37 +00:00
fcntl2.h * Makerules (sysd-rules): Define PTW for ptw-* files. 2007-05-24 23:55:28 +00:00
getopt_core.h getopt: eliminate __need_getopt by splitting up getopt.h. 2017-04-07 07:53:03 -04:00
getopt_ext.h getopt: eliminate __need_getopt by splitting up getopt.h. 2017-04-07 07:53:03 -04:00
getopt_posix.h getopt: eliminate __need_getopt by splitting up getopt.h. 2017-04-07 07:53:03 -04:00
locale.h New file. 2001-01-26 13:12:51 +00:00
mathcalls-helper-functions.h Split helper classification macros from mathcalls.h 2017-03-15 09:39:16 -03:00
mathcalls.h
poll2.h Add checking versions of poll and ppoll 2012-01-08 11:55:32 -05:00
posix1_lim.h
posix2_lim.h
select2.h Add range checking for FD_SET, FD_CLR, and FD_ISSET 2011-09-08 19:48:47 -04:00
setjmp2.h Check for valid stack frame in longjmp. 2009-05-15 19:37:13 -07:00
socket2.h * include/bits/unistd.h: New file. 2005-03-06 00:28:34 +00:00
stab.def
stdlib-float.h Use IS_IN internally only 2014-11-24 15:24:34 +05:30
stdlib.h * stdlib/bits/stdlib.h: New file. 2005-07-13 06:09:58 +00:00
string2.h
string3.h 2004-10-15 Jakub Jelinek <jakub@redhat.com> 2004-10-18 04:17:19 +00:00
strings_fortified.h Use fortify macros for b{zero,copy} along decl from strings.h 2017-01-05 15:54:13 -02:00
syslog.h New file needed since we have misc/bits/syslog.h. 2005-07-31 15:56:33 +00:00
types.h Move bits/types.h into posix/bits. 2017-02-16 09:43:50 -05:00
unistd.h * include/bits/unistd.h: New file. 2005-03-06 00:28:34 +00:00
wchar2.h * wcsmbs/bits/wchar2.h: New file. 2005-07-15 10:32:45 +00:00
xopen_lim.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00