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glibc/sysdeps/generic
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Zack Weinberg 8082d91e1c Factor out shared definitions from bits/signum.h. 
Many of the things defined by bits/signum.h are invariant across all
supported operating systems.  This patch factors out all of them to a
new header bits/signum-generic.h, which each bits/signum.h will include
and then override whichever things need adjustment.  Normally that will
mean, at most, adding or changing a few signal numbers.

A user-visible side effect is that the obsolete signal constant SIGUNUSED
(which is an alias for SIGSYS on all platforms that define it) is no
longer exposed by any version of bits/signum.h.

A side effect only relevant to glibc hackers is that _NSIG is now defined
in terms of __SIGRTMAX, instead of the other way around.  This is because
__SIGRTMAX varies from platform to platform, but _NSIG==__SIGRTMAX+1 is
true universally.  If your platform doesn't support realtime signals,
leave __SIGRTMAX equal to __SIGRTMIN.

I also added a Linux-specific test to make sure that our signal constants
match the ones in <asm/signal.h>, since we can't use that header (it's
not even vaguely namespace-clean).

	* bits/signum-generic.h: Renamed from bits/signum.h.
	Add proper multiple include guard and misuse check.
	Define __SIGRTMIN = __SIGRTMAX = 32, and define _NSIG = __SIGRTMAX+1.
	Move definition of SIGIO to "archaic names for compatibility" section.
	* bits/signum.h: New file which just includes bits/signum-generic.h.
	* sysdeps/unix/bsd/bits/signum.h
	* sysdeps/unix/sysv/linux/bits/signum.h
	* sysdeps/unix/sysv/linux/alpha/bits/signum.h
	* sysdeps/unix/sysv/linux/hppa/bits/signum.h
	* sysdeps/unix/sysv/linux/mips/bits/signum.h
	* sysdeps/unix/sysv/linux/sparc/bits/signum.h
	Just include <bits/signum-generic.h> and then add or adjust
	signal constants.  Do not define SIGUNUSED, SIGRTMIN, or SIGRTMAX.

	* signal/Makefile: Install bits/signum-generic.h.
	* signal/signal.h: Define SIGRTMIN and SIGRTMAX here.

	* sysdeps/generic/siglist.h: SIGSYS and SIGWINCH are
	universal.  Prefer SIGPOLL to SIGIO. Simplify #ifdeffage.

	* sysdeps/unix/sysv/linux/tst-signal-numbers.sh: New test.
	* sysdeps/unix/sysv/linux/Makefile: Run it.
2017-06-20 20:32:50 -04:00
..
net Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
netinet Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
nfs Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sys Fix sys/ucontext.h namespace from signal.h etc. inclusion (bug 21457). 2017-05-23 11:49:48 +00:00
_G_config.h Remove __need macros from stdio.h and wchar.h. 2017-06-08 13:58:17 -04:00
_itoa.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
a.out.h
abort-instr.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
aio_misc.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
allocalim.h
asm-syntax.h
atomic-machine.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
c++-types.data Add placeholder c++-types.data and *.abilist files. 2015-02-13 15:41:34 -08:00
confstr.h
device-nrs.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dirstream.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-cache.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-dtprocnum.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-dtv.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-fcntl.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-fileid.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-fptr.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-hash.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-irel.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-librecon.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-lookupcfg.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-machine.h PowerPC64 ELFv2 PPC64_OPT_LOCALENTRY 2017-06-14 10:47:25 +09:30
dl-mman.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-osinfo.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-procinfo.c
dl-procinfo.h Remove _dl_platform_string 2017-03-14 17:18:52 +01:00
dl-sysdep.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-tls.h
dl-unistd.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dwarf2.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
elide.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
eloop-threshold.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
entry.h
errqueue.h
exit-thread.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
fd_to_filename.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
fips-private.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
fix-fp-int-compare-invalid.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
fix-fp-int-convert-overflow.h float128: Add private _Float128 declarations for libm. 2017-05-15 10:23:28 -03:00
fix-int-fp-convert-zero.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
fork.h
fpu_control.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
frame.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
framestate.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
gcc-compat.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
gccframe.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
get-rounding-mode.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
gmp-mparam.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
hp-timing-common.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
hp-timing.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ifreq.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ifunc-sel.h Do not stack-protect ifunc resolvers [BZ #7065] 2016-12-26 10:08:41 +01:00
intr-msg.h
inttypes.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ld.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
ldconfig.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ldsodefs.h ld.so: Consolidate 2 strtouls into _dl_strtoul [BZ #21528] 2017-06-08 12:52:42 -07:00
libanl.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libBrokenLocale.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libc-lock.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
libc-mmap.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
libc-tsd.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
libc.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libcidn.abilist Add missed zero length files in previous abilist commit. 2012-04-28 15:38:24 -04:00
libcrypt.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libdl.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libm-test-ulps
libm-test-ulps-name Do not hardcode platform names in manual/libm-err-tab.pl (bug 14139). 2016-11-04 16:49:06 +00:00
libm.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libnsl.abilist Add placeholder libnsl.abilist and libutil.abilist files 2016-03-07 00:49:36 +01:00
libnss_compat.abilist Add missed zero length files in previous abilist commit. 2012-04-28 15:38:24 -04:00
libnss_db.abilist Add missed zero length files in previous abilist commit. 2012-04-28 15:38:24 -04:00
libnss_dns.abilist Add missed zero length files in previous abilist commit. 2012-04-28 15:38:24 -04:00
libnss_files.abilist Add missed zero length files in previous abilist commit. 2012-04-28 15:38:24 -04:00
libnss_hesiod.abilist Add missed zero length files in previous abilist commit. 2012-04-28 15:38:24 -04:00
libnss_nis.abilist Add missed zero length files in previous abilist commit. 2012-04-28 15:38:24 -04:00
libnss_nisplus.abilist Add missed zero length files in previous abilist commit. 2012-04-28 15:38:24 -04:00
libpthread.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libresolv.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
librt.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libutil.abilist Add placeholder libnsl.abilist and libutil.abilist files 2016-03-07 00:49:36 +01:00
linkmap.h Rename bits/linkmap.h to linkmap.h (bug 14912). 2015-09-04 19:44:27 +00:00
local-setxid.h * sysdeps/posix/spawni.c (__spawni): Use local_seteuid and 2006-06-04 22:17:06 +00:00
localplt.data ld.so: Remove __libc_memalign 2016-11-30 16:23:58 +01:00
machine-gmon.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
machine-lock.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
machine-sp.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Makefile Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
malloc-machine.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
malloc-sysdep.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
math_ldbl_opt.h * math/math.h [__NO_LONG_DOUBLE_MATH] (__nldbl_nexttowardf): New 2006-01-14 12:10:44 +00:00
math_ldbl.h Allow direct use of math_ldbl.h in testsuite. 2017-02-25 10:40:48 -05:00
math_private_calls.h float128: Add private _Float128 declarations for libm. 2017-05-15 10:23:28 -03:00
math_private.h float128: Add private _Float128 declarations for libm. 2017-05-15 10:23:28 -03:00
math-tests-arch.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
math-tests.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
math-type-macros-double.h Add new templates for IEEE wrappers 2017-02-23 11:28:50 -03:00
math-type-macros-float128.h float128: Enable use of IEEE wrapper templates 2017-05-15 10:24:14 -03:00
math-type-macros-float.h Add new templates for IEEE wrappers 2017-02-23 11:28:50 -03:00
math-type-macros-ldouble.h Add new templates for IEEE wrappers 2017-02-23 11:28:50 -03:00
math-type-macros.h Convert e_exp2l.c into a template 2017-05-17 14:44:08 -03:00
memcopy.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memusage.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
nan-high-order-bit.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
not-cancel.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
nscd-types.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
pagecopy.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
paths.h generic paths.h: remove old paths from _PATH_STDPATH 2012-11-04 10:11:39 +01:00
profil-counter.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
pty-private.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
register-dump.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
rtld-lowlevel.h Jakub Jelinek <jakub@redhat.com> 2006-10-10 00:51:29 +00:00
safe-fatal.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sigcontextinfo.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
siglist.h Factor out shared definitions from bits/signum.h. 2017-06-20 20:32:50 -04:00
sigset-cvt-mask.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sigsetops.h Remove __need macros from signal.h. 2017-05-20 19:04:43 -04:00
stackguard-macros.h BZ #15754: Fix test case for ARM. 2013-09-23 01:44:38 -04:00
stackinfo.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
stdint.h Fix network headers stdint.h namespace (bug 21455). 2017-05-04 20:36:42 +00:00
stdio-lock.h Remove _IO_MTSAFE_IO from public headers. 2017-05-11 19:14:11 -04:00
string_private.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
symbol-hacks.h PLT avoidance for __stack_chk_fail [BZ #7065] 2016-12-26 10:11:05 +01:00
sysdep-cancel.h * elf/dl-sym.c (do_sym): Use RTLD_SINGLE_THREAD_P. 2006-10-29 21:46:32 +00:00
sysdep.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
thread_state.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tininess.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tls-macros.h * elf/tls-macros.h: #include_next <tls-macros.h> to get a sysdeps 2005-03-13 09:09:05 +00:00
tls.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-audit.h Move testsuite audit definitions to sysdeps tst-audit.h files. 2012-07-26 11:29:07 +00:00
tst-stack-align.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
unsecvars.h Ignore and remove LD_HWCAP_MASK for AT_SECURE programs (bug #21209) 2017-03-07 20:52:04 +05:30
unwind-dw2-fde-glibc.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
unwind-dw2-fde.c [BZ 21357] unwind-dw2-fde: Call free() outside of unwind mutex 2017-04-17 12:03:44 -03:00
unwind-dw2-fde.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
unwind-dw2.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
unwind-pe.c Update. 2004-03-10 10:04:19 +00:00
unwind-pe.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
unwind-resume.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
unwind.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
utmp-equal.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00