RepoMirrors
/
musl
mirror of git://git.musl-libc.org/musl
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
musl/include
History
Szabolcs Nagy e980ca7a57 define FP_FAST_FMA* when fma* can be inlined 
FP_FAST_FMA can be defined if "the fma function generally executes about
as fast as, or faster than, a multiply and an add of double operands",
which can only be true if the fma call is inlined as an instruction.

gcc sets __FP_FAST_FMA if __builtin_fma is inlined as an instruction,
but that does not mean an fma call will be inlined (e.g. it is defined
with -fno-builtin-fma), other compilers (clang) don't even have such
macro, but this is the closest we can get.

(even if the libc fma implementation is a single instruction, the extern
call overhead is already too big when the macro is used to decide between
x*y+z and fma(x,y,z) so it cannot be based on libc only, defining the
macro unconditionally on targets which have fma in the base isa is also
incorrect: the compiler might not inline fma anyway.)

this solution works with gcc unless fma inlining is explicitly turned off.
 		2019-04-17 13:02:47 -04:00
..
arpa fix endian errors in arpa/nameser.h due to failure to include endian.h 2017-12-14 23:36:47 -05:00
net net/if_arp.h: add ARPHRD_RAWIP from linux v4.14 2018-02-22 18:47:49 -05:00
netinet netinet/tcp.h: add TCP_NLA_SRTT from linux v5.0 2019-03-13 12:33:54 -04:00
netpacket add PACKET_IGNORE_OUTGOING sockopt from linux v4.20 2019-03-13 12:32:19 -04:00
scsi add legacy scsi/scsi_ioctl.h header 2013-07-03 18:07:50 +02:00
sys sys/prctl.h: add PR_PAC_RESET_KEYS from linux v5.0 2019-03-13 12:34:56 -04:00
aio.h make all objects used with atomic operations volatile 2015-03-03 22:50:02 -05:00
alloca.h alloca cannot be a function. #define it to the gcc builtin if possible 2012-04-09 15:06:58 -04:00
alltypes.h.in make FILE a complete type for pre-C11 standard profiles 2019-03-12 15:24:00 -04:00
ar.h some extra legacy header stuff 2012-05-06 16:35:32 -04:00
assert.h restore _Noreturn to __assert_fail 2016-08-30 16:39:54 -04:00
byteswap.h remove all remaining redundant __restrict/__inline/_Noreturn defs 2012-09-08 17:14:52 -04:00
complex.h fix mismatched parens in CMPLX def for annex-g-conforming compilers 2015-11-02 21:44:57 -05:00
cpio.h
…
crypt.h replace old and ugly crypt implementation 2012-06-29 00:56:37 -04:00
ctype.h add macro version of ctype.h isascii function 2015-06-06 18:16:22 +00:00
dirent.h add _DIRENT_HAVE_D_* macros to dirent.h 2018-01-12 14:26:59 -05:00
dlfcn.h const-qualify the address argument to dladdr 2014-01-06 22:03:38 -05:00
elf.h elf.h: add NT_ definitions from linux v5.0 2019-03-13 12:34:08 -04:00
endian.h default features: make musl usable without feature test macros 2012-09-07 23:13:55 -04:00
err.h fix redundant _Noreturn def in err.h 2012-09-08 18:16:33 -04:00
errno.h restore attribute((const)) to pthread_self and errno location decls 2018-10-16 14:10:27 -04:00
fcntl.h fcntl.h: define O_TTY_INIT to 0 2019-04-10 20:37:04 -04:00
features.h in public headers, don't assume pre-C99 compilers have __inline keyword 2016-12-16 23:12:32 -05:00
fenv.h
…
float.h fix FLT_ROUNDS regression in C++ applications 2015-03-23 11:26:51 -04:00
fmtmsg.h implement fmtmsg function 2014-06-21 19:24:15 -04:00
fnmatch.h remove now-unnecessary features.h inclusion from fnmatch.h 2013-12-02 02:06:52 -05:00
ftw.h make brace placement in public header struct definitions consistent 2016-07-03 15:02:25 -04:00
getopt.h make brace placement in public header struct definitions consistent 2016-07-03 15:02:25 -04:00
glob.h fix macros for LFS *64_t types in sys/stat.h, sys/types.h, glob.h 2014-09-05 16:03:07 -04:00
grp.h fix various header namespace issues under feature-test-macro control 2016-10-20 17:20:01 -04:00
iconv.h remove all remaining redundant __restrict/__inline/_Noreturn defs 2012-09-08 17:14:52 -04:00
ifaddrs.h remove parameter names from public headers 2016-10-20 17:04:37 -04:00
inttypes.h fix inttypes.h PRI and SCN macros for [u]intptr_t types 2013-10-30 14:52:55 -04:00
iso646.h
…
langinfo.h add _NL_LOCALE_NAME extension to nl_langinfo 2017-07-31 23:08:27 -04:00
lastlog.h some extra legacy header stuff 2012-05-06 16:35:32 -04:00
libgen.h
…
libintl.h add format argument attributes to gettext function prototypes 2015-09-15 20:30:36 +00:00
limits.h fix dubious char signedness check in limits.h 2018-08-28 13:54:50 -04:00
link.h generalize ELF hash table types not to assume 32-bit entries 2016-11-11 12:46:06 -05:00
locale.h restore type of NULL to void * except when used in C++ programs 2013-11-24 21:42:55 -05:00
malloc.h add malloc_usable_size function and non-stub malloc.h 2014-08-25 22:47:27 -04:00
math.h define FP_FAST_FMA* when fma* can be inlined 2019-04-17 13:02:47 -04:00
memory.h
…
mntent.h make brace placement in public header struct definitions consistent 2016-07-03 15:02:25 -04:00
monetary.h remove all remaining redundant __restrict/__inline/_Noreturn defs 2012-09-08 17:14:52 -04:00
mqueue.h remove all remaining redundant __restrict/__inline/_Noreturn defs 2012-09-08 17:14:52 -04:00
netdb.h restore attribute((const)) to pthread_self and errno location decls 2018-10-16 14:10:27 -04:00
nl_types.h refactor headers, especially alltypes.h, and improve C++ ABI compat 2013-07-22 11:22:36 -04:00
paths.h remove duplicate definition of _PATH_LASTLOG in paths.h 2013-12-03 20:34:36 -05:00
poll.h make brace placement in public header struct definitions consistent 2016-07-03 15:02:25 -04:00
pthread.h restore attribute((const)) to pthread_self and errno location decls 2018-10-16 14:10:27 -04:00
pty.h
…
pwd.h fix various header namespace issues under feature-test-macro control 2016-10-20 17:20:01 -04:00
regex.h make regoff_t and regex_t match C++ ABI 2013-07-22 14:39:59 -04:00
resolv.h don't claim support for resolv.h APIs that aren't supported 2016-11-07 11:55:53 -05:00
sched.h fix use of memset without declaration in sched.h cpu set macros 2017-09-28 12:57:06 -04:00
search.h implement hcreate_r, hdestroy_r and hsearch_r 2014-04-02 18:37:45 -04:00
semaphore.h make all objects used with atomic operations volatile 2015-03-03 22:50:02 -05:00
setjmp.h remove macro definition of longjmp from setjmp.h 2015-04-01 20:35:03 -04:00
shadow.h
…
signal.h add TRAP_UNK si_code to signal.h from linux v4.18 2018-12-09 22:29:07 -05:00
spawn.h rework mechanism for posix_spawnp calling posix_spawn 2018-09-12 14:34:32 -04:00
stdalign.h add static_assert and hide noreturn, alignas, alignof from C++ 2014-08-27 02:55:54 -04:00
stdarg.h remove legacy i386 fallback stdarg implementation and framework 2016-12-15 12:18:24 -05:00
stdbool.h stdbool.h should define __bool_true_false_are_defined even for C++ 2013-08-28 00:41:00 -04:00
stdc-predef.h add stdc-predef.h for library-level predefined macros 2016-07-03 20:03:30 -04:00
stddef.h add max_align_t definition for C11 and C++11 2014-08-20 17:20:14 -04:00
stdint.h fix signedness of UINT32_MAX and UINT64_MAX at the preprocessor level 2014-12-21 02:30:29 -05:00
stdio.h make FILE a complete type for pre-C11 standard profiles 2019-03-12 15:24:00 -04:00
stdio_ext.h stdio_ext.h needs to include stdio.h, at least to get FILE... 2012-08-24 16:16:30 -04:00
stdlib.h remove parameter names from public headers 2016-10-20 17:04:37 -04:00
stdnoreturn.h add static_assert and hide noreturn, alignas, alignof from C++ 2014-08-27 02:55:54 -04:00
string.h add explicit_bzero implementation 2018-06-26 16:59:12 -04:00
strings.h implement ffsl and ffsll functions 2014-07-31 02:38:23 -04:00
stropts.h add isastream (obsolete STREAMS junk) 2012-05-06 09:03:19 -04:00
syscall.h header file fixes: multiple include guard consistency and correctness 2012-06-15 21:52:53 -04:00
sysexits.h
…
syslog.h remove hack in syslog.h that resulted in aliasing violations 2014-06-21 07:44:46 -04:00
tar.h expose TSVTX unconditionally in tar.h 2019-03-13 10:42:57 -04:00
termios.h default features: make musl usable without feature test macros 2012-09-07 23:13:55 -04:00
tgmath.h math: more correct tgmath.h type cast logic 2012-12-19 10:57:54 +01:00
threads.h remove parameter names from public headers 2016-10-20 17:04:37 -04:00
time.h fix various header namespace issues under feature-test-macro control 2016-10-20 17:20:01 -04:00
uchar.h uchar.h: define char16_t and char32_t for old c++ 2018-07-17 22:24:03 -04:00
ucontext.h fix signature of function accepted by makecontext 2019-04-05 17:29:00 -04:00
ulimit.h
…
unistd.h fix minor namespace issue in unistd.h 2018-03-10 18:19:40 -05:00
utime.h make brace placement in public header struct definitions consistent 2016-07-03 15:02:25 -04:00
utmp.h add declarations for utmpname/utmpxname to appropriate headers 2016-02-12 09:58:50 -05:00
utmpx.h fix typo in utmpx.h 2016-10-20 16:55:32 -04:00
values.h add legacy header values.h 2013-01-04 20:36:34 +01:00
wait.h add workaround header for wait.h remapping to sys/wait.h 2013-09-01 01:01:31 -04:00
wchar.h make FILE a complete type for pre-C11 standard profiles 2019-03-12 15:24:00 -04:00
wctype.h improve iswdigit macro to diagnose errors 2015-05-02 21:19:08 -04:00
wordexp.h make brace placement in public header typedef'd structs consistent 2016-07-03 16:19:28 -04:00