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glibc/include
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Wilco Dijkstra 1294b1892e Add support for sqrt asm redirects 
This patch series cleans up the many uses of  __ieee754_sqrt(f/l) in GLIBC.
The goal is to enable GCC to do the inlining, and if this fails call the
__ieee754_sqrt function.  This is done by internally declaring sqrt with asm
redirects.  The compat symbols and sqrt wrappers need to disable the redirect.
The redirect is also disabled if there are already redirects defined when
using -ffinite-math-only.

All math functions (but not math tests, non-library code and libnldbl) are
built with -fno-math-errno which means GCC will typically inline sqrt as a
single instruction.  This means targets are no longer forced to add a special
inline for sqrt.

	* include/math.h (sqrt): Declare with asm redirect.
	(sqrtf): Likewise.
	(sqrtl): Likewise.
	(sqrtf128): Likewise.
	* Makeconfig: Add -fno-math-errno for libc/libm, but build testsuite,
	nonlib and libnldbl with -fmath-errno.
	* math/w_sqrt_compat.c: Define NO_MATH_REDIRECT.
	* math/w_sqrt_template.c: Likewise.
	* math/w_sqrtf_compat.c: Likewise.
	* math/w_sqrtl_compat.c: Likewise.
	* sysdeps/i386/fpu/w_sqrt.c: Likewise.
	* sysdeps/i386/fpu/w_sqrt_compat.c: Likewise.
	* sysdeps/generic/math-type-macros-float128.h: Remove math.h and
	complex.h.
2018-03-15 19:21:35 +00:00
..
arpa nss_dns: Replace local declarations with declarations from a header file 2017-04-04 20:56:23 +02:00
bits Add build infrastructure for narrowing libm functions. 2018-02-09 21:18:52 +00:00
gnu Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
net
netinet Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
programs Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
protocols
rpc Mark internal rpc functions with attribute_hidden [BZ #18822] 2017-10-01 15:55:15 -07:00
rpcsvc libnsl: Turn remaining symbols into compat symbols [BZ #22701] 2018-01-29 17:42:30 +01:00
sys Use libc_hidden_* for __cmsg_nxthdr (bug 15105). 2018-02-15 20:59:12 +00:00
aio.h
aliases.h Mark internal getXXXbyYYY functions with attribute_hidden [BZ #18822] 2017-10-01 15:21:00 -07:00
alloc_buffer.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
alloca.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
argp-fmtstream.h Mark internal argp functions with attribute_hidden [BZ #18822] 2017-10-01 15:10:27 -07:00
argp.h Mark internal argp functions with attribute_hidden [BZ #18822] 2017-10-01 15:10:27 -07:00
argz.h Use libc_hidden_* for argz_next, __argz_next (bug 15105). 2018-02-15 21:00:02 +00:00
array_length.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
assert.h Introduce NO_RTLD_HIDDEN, make hurd use it instead of NO_HIDDEN 2017-10-03 01:33:38 +02:00
atomic.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
byteswap.h
complex.h float128: Add private _Float128 declarations for libm. 2017-05-15 10:23:28 -03:00
cpio.h
crypt.h Add include/crypt.h. 2016-10-28 22:40:16 -04:00
ctype.h Use libc_hidden_* for tolower, toupper (bug 15105). 2018-02-23 13:54:53 +00:00
des.h
dirent.h Define _DIRENT_MATCHES_DIRENT64 regardless 2018-03-05 18:10:04 -03:00
dlfcn.h elf: Support dlvsym within libc.so 2018-01-04 18:46:24 +01:00
dso_handle.h Mark __dso_handle as hidden [BZ #18822] 2017-09-26 16:53:44 -07:00
elf.h Properly compute offsets of note descriptor and next note [BZ #22370] 2017-11-28 09:57:00 -08:00
endian.h
envz.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
err.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
errno.h Remove __need macros from errno.h (__need_Emath, __need_error_t). 2017-06-14 08:14:34 -04:00
error.h
execinfo.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
fcntl.h Consolidate remaning non cancellable definitions 2017-08-23 10:47:03 -03:00
features.h manual: Update _DEFAULT_SOURCE. [BZ #22862] 2018-02-21 02:38:42 -08:00
fenv.h Move fenv.h override inline functions to generic math_private.h. 2018-02-01 20:54:44 +00:00
float.h Handle more _FloatN, _FloatNx types in include/float.h. 2017-11-07 23:49:04 +00:00
fmtmsg.h
fnmatch.h
fpu_control.h Hide internal __setfpucw function [BZ #18822] 2017-10-01 17:52:15 -07:00
ftw.h
gconv.h
getopt_int.h
getopt.h getopt: remove USE_NONOPTION_FLAGS 2017-04-07 07:45:53 -04:00
glob.h Hide internal __glob64 function [BZ #18822] 2017-10-01 18:02:10 -07:00
gmp.h Mark internal gmp functions with attribute_hidden [BZ #18822] 2017-10-01 15:15:30 -07:00
gnu-versions.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
grp-merge.h NSS: Implement group merging support. 2016-04-29 22:18:21 -04:00
grp.h Mark internal grp/pwd/shadow functions with attribute_hidden [BZ #18822] 2017-10-01 15:13:13 -07:00
gshadow.h Mark internal gshadow functions with attribute_hidden [BZ #18822] 2017-10-01 15:19:17 -07:00
iconv.h
idna.h Hide internal idna functions [BZ #18822] 2017-10-01 17:33:22 -07:00
ifaddrs.h hurd: Fix getifaddrs' and freeifaddrs' symbol exposition 2017-09-28 01:05:18 +02:00
ifreq.h Hide internal __ifreq function [BZ #18822] 2017-10-01 17:35:46 -07:00
ifunc-impl-list.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
inline-hashtab.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
inttypes.h Use libc_hidden_* for strtoumax (bug 15105). 2018-02-28 14:16:21 +00:00
langinfo.h
libc-diag.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
libc-internal.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
libc-pointer-arith.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
libc-symbols.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
libgen.h
libintl.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
limits.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
link.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
list_t.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
list.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
locale.h
malloc.h Hide internal __malloc_check_init function [BZ #18822] 2017-10-01 16:00:36 -07:00
math.h Add support for sqrt asm redirects 2018-03-15 19:21:35 +00:00
mcheck.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
memory.h
mntent.h Hide internal __hasmntopt function [BZ #18822] 2017-10-01 17:37:42 -07:00
monetary.h Hide internal __vstrfmon_l function [BZ #18822] 2017-10-01 17:45:07 -07:00
mqueue.h Fix mq_receive, mq_send mq_timed* namespace (bug 18545). 2015-06-17 20:19:04 +00:00
netdb.h Mark internal getXXXbyYYY functions with attribute_hidden [BZ #18822] 2017-10-01 15:21:00 -07:00
netgroup.h
nl_types.h
nss.h nss: Export nscd hash function as __nss_hash [BZ #22459] 2017-11-23 14:08:11 +01:00
nsswitch.h
obstack.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
plural-exp.h Hide internal __gettextparse function [BZ #18822] 2017-10-01 17:31:05 -07:00
poll.h
printf.h Hide internal printf functions [BZ #18822/21986] 2017-08-22 07:50:57 -07:00
pthread.h Fix mq_notify pthread_barrier_* namespace (bug 18544). 2015-06-17 20:16:56 +00:00
pty.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
pwd.h Mark internal grp/pwd/shadow functions with attribute_hidden [BZ #18822] 2017-10-01 15:13:13 -07:00
regex.h Hide internal regex functions [BZ #18822] 2017-10-01 15:53:15 -07:00
resolv.h Obsolete p_secstodate. 2017-11-22 22:21:10 +00:00
rounding-mode.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
sched.h Hide internal __sched_setparam function [BZ #18822] 2017-10-01 17:43:25 -07:00
scratch_buffer.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
search.h Hide internal __tdestroy function [BZ #18822] 2017-10-01 16:06:58 -07:00
set-hooks.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
setjmp.h Remove hidden __libc_longjmp 2018-03-10 09:27:20 -08:00
sgtty.h
shadow.h Mark internal grp/pwd/shadow functions with attribute_hidden [BZ #18822] 2017-10-01 15:13:13 -07:00
shlib-compat.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
signal.h Introduce NO_RTLD_HIDDEN, make hurd use it instead of NO_HIDDEN 2017-10-03 01:33:38 +02:00
spawn.h
stab.h
stackinfo.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
stap-probe.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
stdc-predef.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
stdio_ext.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
stdio.h Mechanically remove _IO_ name aliases for types and constants. 2018-02-21 14:11:05 -05:00
stdlib.h Use libc_hidden_* for atoi (bug 15105). 2018-02-26 18:17:47 +00:00
string.h Introduce NO_RTLD_HIDDEN, make hurd use it instead of NO_HIDDEN 2017-10-03 01:33:38 +02:00
strings.h
stropts.h
stubs-prologue.h
syscall.h
sysexits.h
syslog.h
tar.h
termios.h Hide internal __tcgetattr function [BZ #18822] 2017-10-01 17:48:24 -07:00
tgmath.h
time.h Mark internal time functions with attribute_hidden [BZ #18822] 2017-10-01 15:17:32 -07:00
ttyent.h Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
uchar.h
ucontext.h
ulimit.h
unistd.h hurd: Implement faccessat without AT_EACCESS flag 2018-01-10 02:03:28 +01:00
utime.h
utmp.h Mark internal utmp functions with attribute_hidden [BZ #18822] 2017-10-01 15:51:56 -07:00
values.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
wchar.h Remove attribute_hidden for wchar ifunc symbols. 2017-11-21 08:43:23 +01:00
wctype.h Remove __need macros from stdio.h and wchar.h. 2017-06-08 13:58:17 -04:00
wordexp.h