In math/math.h, __MATH_TG will expand signbit to __builtin_signbit*,
e.g.: __builtin_signbitf128, before GCC 6. However, there has never
been a __builtin_signbitf128 in GCC and the type-generic builtin is
only available since GCC 6. For older GCC, this patch defines
__builtin_signbitf128 to __signbitf128, so that the internal function
is used instead of the non-existent builtin.
This patch also changes the implementation of __signbitf128, because
it was reusing the implementation of __signbitl from ldbl-128, which
calls __builtin_signbitl. Using the long double version of the
builtin is not correct on machines where _Float128 is ABI-distinct
from long double (i.e.: ia64, powerpc64le, x86, x86_84). The new
implementation does not rely on builtins when being built with GCC
versions older than 6.0.
The new code does not currently affect powerpc64le builds, because
only GCC 6.2 fulfills the requirements from configure. It might
affect powerpc64le builds if those requirements are backported to
older versions of the compiler. The new code affects x86_64 builds,
since glibc is supposed to build correctly with older versions of GCC.
Tested for powerpc64le and x86_64.
* include/math.h (__signbitf128): Define as hidden.
* sysdeps/ieee754/float128/s_signbitf128.c (__signbitf128):
Reimplement without builtins.
* sysdeps/ia64/bits/floatn.h [!__GNUC_PREREQ (6, 0)]
(__builtin_signbitf128): Define to __signbitf128.
* sysdeps/powerpc/bits/floatn.h: Likewise.
* sysdeps/x86/bits/floatn.h: Likewise.
Similar to the other functions in the strfrom class, strfromf128 calls
__printf_fp in order to convert the floating-point value to characters.
This requires the value of IO_MTSAFE_IO.
Tested for powerpc64le and s390x.
* sysdeps/ieee754/float128/Makefile (CFLAGS-strfromf128.c): Add
$(libio-mtsafe) to get the value of IO_MTSAFE_IO.
As with other long double identifiers, float128_private.h has a
redefinition of SET_RESTORE_ROUNDL. However, that redefinition is
broken, since this is a macro with one argument being defined to take
no arguments. This patch fixes the redefinition. (x86_64 needs the
redefinition because SET_RESTORE_ROUNDL only changes the x87 rounding
mode, whereas _Float128 arithmetic uses the SSE rounding mode instead
on x86_64.)
Tested for x86_64 (in conjunction with float128 patches).
* sysdeps/ieee754/float128/float128_private.h
[SET_RESTORE_ROUNDF128] (SET_RESTORE_ROUNDL): Take an argument and
pass it to SET_RESTORE_ROUNDF128.
float128_private.h redefines ieee754.h identifiers ieee854_long_double
and IEEE854_LONG_DOUBLE_BIAS to map them to identifiers from
ieee754_float128.h.
This causes problems when ieee754.h is included after
float128_private.h and it's a version of ieee754.h that also defines
those identifiers; specifically, sysdeps/ieee754/ieee754.h, which
defines those identifiers for the x86 extended format. This patch
fixes this by ensuring an include of ieee754.h from float128_private.h
before the redefinitions.
Tested for x86_64 (in conjunction with float128 patches).
* sysdeps/ieee754/float128/float128_private.h: Include
<ieee754.h>.
Three float128 files still include xlocale.h after it was removed. I
don't know why this didn't cause problems for powerpc64le float128
testing; it did cause problems for my x86_64 float128 testing. This
patch changes the includes to use bits/types/locale_t.h.
Tested for x86_64 (in conjunction with float128 patches).
* sysdeps/ieee754/float128/strtof128_l.c: Include
<bits/types/locale_t.h> instead of <xlocale.h>.
* sysdeps/ieee754/float128/wcstof128.c: Likewise.
* sysdeps/ieee754/float128/wcstof128_l.c: Likewise.
<locale.h> is specified to define locale_t in POSIX.1-2008, and so are
all of the headers that define functions that take locale_t arguments.
Under _GNU_SOURCE, the additional headers that define such functions
have also always defined locale_t. Therefore, there is no need to use
__locale_t in public function prototypes, nor in any internal code.
* ctype/ctype-c99_l.c, ctype/ctype.h, ctype/ctype_l.c
* include/monetary.h, include/stdlib.h, include/time.h
* include/wchar.h, locale/duplocale.c, locale/freelocale.c
* locale/global-locale.c, locale/langinfo.h, locale/locale.h
* locale/localeinfo.h, locale/newlocale.c
* locale/nl_langinfo_l.c, locale/uselocale.c
* localedata/bug-usesetlocale.c, localedata/tst-xlocale2.c
* stdio-common/vfscanf.c, stdlib/monetary.h, stdlib/stdlib.h
* stdlib/strfmon_l.c, stdlib/strtod_l.c, stdlib/strtof_l.c
* stdlib/strtol.c, stdlib/strtol_l.c, stdlib/strtold_l.c
* stdlib/strtoll_l.c, stdlib/strtoul_l.c, stdlib/strtoull_l.c
* string/strcasecmp.c, string/strcoll_l.c, string/string.h
* string/strings.h, string/strncase.c, string/strxfrm_l.c
* sysdeps/ieee754/float128/strtof128_l.c
* sysdeps/ieee754/float128/wcstof128.c
* sysdeps/ieee754/float128/wcstof128_l.c
* sysdeps/ieee754/ldbl-128ibm/strtold_l.c
* sysdeps/ieee754/ldbl-64-128/strtold_l.c
* sysdeps/ieee754/ldbl-opt/nldbl-compat.c
* sysdeps/ieee754/ldbl-opt/nldbl-strfmon_l.c
* sysdeps/ieee754/ldbl-opt/nldbl-strtold_l.c
* sysdeps/ieee754/ldbl-opt/nldbl-wcstold_l.c
* sysdeps/powerpc/powerpc32/power7/strcasecmp.S
* sysdeps/powerpc/powerpc64/power7/strcasecmp.S
* sysdeps/x86_64/strcasecmp_l-nonascii.c
* sysdeps/x86_64/strncase_l-nonascii.c, time/strftime_l.c
* time/strptime_l.c, time/time.h, wcsmbs/mbsrtowcs_l.c
* wcsmbs/wchar.h, wcsmbs/wcscasecmp.c, wcsmbs/wcsncase.c
* wcsmbs/wcstod.c, wcsmbs/wcstod_l.c, wcsmbs/wcstof.c
* wcsmbs/wcstof_l.c, wcsmbs/wcstol_l.c, wcsmbs/wcstold.c
* wcsmbs/wcstold_l.c, wcsmbs/wcstoll_l.c, wcsmbs/wcstoul_l.c
* wcsmbs/wcstoull_l.c, wctype/iswctype_l.c
* wctype/towctrans_l.c, wctype/wcfuncs_l.c
* wctype/wctrans_l.c, wctype/wctype.h, wctype/wctype_l.c:
Change all uses of __locale_t to locale_t.
The implementations are contained with sysdeps/ieee754/float128 as
they are only built when _Float128 is enabled within libc/m.
* include/gmp.h (__mpn_construct_float128): New declaration.
* include/stdlib.h: Include bits/floatn.h for _Float128 tests.
(__strtof128_l): New declaration.
(__strtof128_nan): Likewise.
(__wcstof128_nan): Likewise.
(__strtof128_internal): Likewise.
(____strtof128_l_internal): Likewise.
* include/wchar.h: Include bits/floatn.h for _Float128 tests.
(__wcstof128_l): New declaration.
(__wcstof128_internal): Likewise.
* stdlib/Makefile (bug-strtod2): Link libm too.
* stdlib/stdlib.h (strtof128): New declaration.
(strtof128_l): Likewise.
* stdlib/tst-strtod-nan-locale-main.c: Updated to use
tst-strtod.h macros to ensure float128 gets tested too.
* stdlib/tst-strtod-round-skeleton.c (CHOOSE_f128): New macro.
* stdlib/tst-strtod.h: Include bits/floatn.h for _Float128
tests.
(IF_FLOAT128): New macro.
(GEN_TEST_STRTOD): Update to optionally include _Float128 in
the tests.
(STRTOD_TEST_FOREACH): Likewise.
* sysdeps/ieee754/float128/Makefile: Insert new strtof128 and
wcstof128 functions into libc.
* sysdeps/ieee754/float128/Versions: Add exports for the above
new functions.
* sysdeps/ieee754/float128/mpn2float128.c: New file.
* sysdeps/ieee754/float128/strtod_nan_float128.h: New file.
* sysdeps/ieee754/float128/strtof128.c: New file.
* sysdeps/ieee754/float128/strtof128_l.c: New file.
* sysdeps/ieee754/float128/strtof128_nan.c: New file.
* sysdeps/ieee754/float128/wcstof128.c: New file.
* sysdeps/ieee754/float128/wcstof128_l.c: New file.
* sysdeps/ieee754/float128/wcstof128_nan.c: New fike.
* wcsmbs/Makefile: (CFLAGS-wcstof128.c): Append strtox-CFLAGS.
(CFLAGS-wcstof128_l): Likewise.
* wcsmbs/wchar.h: Include bits/floatn.h for _Float128 tests.
(wcstof128): New declaration.
(wcstof128_l): Likewise.
Add strfromf128 to stdlib when _Float128 support is enabled.
* stdio-common/printf-parsemb.c (__parse_one_specmb): Initialize
spec->info.is_binary128 to zero.
* stdio-common/printf.h (printf_info): Add new member is_binary128
to indicate that the number being converted to string is compatible
with the IEC 60559 binary128 format.
* stdio-common/printf_fp.c (__printf_fp_l): Add code to deal with
_Float128 numbers.
* stdio-common/printf_fphex.c: Include ieee754_float128.h and
ldbl-128/printf_fphex_macros.h
(__printf_fphex): Add code to deal with _Float128 numbers.
* stdio-common/printf_size.c (__printf_size): Likewise.
* stdio-common/vfprintf.c (process_arg): Initialize member
info.is_binary128 to zero.
* stdlib/fpioconst.h (FLT128_MAX_10_EXP_LOG): New macro.
* stdlib/stdlib.h: Include bits/floatn.h for _Float128 support.
(strfromf128): New declaration.
* stdlib/strfrom-skeleton.c (STRFROM): Set member info.is_binary128
to one.
* sysdeps/ieee754/float128/Makefile: Add strfromf128.
* sysdeps/ieee754/float128/Versions: Likewise.
* sysdeps/ieee754/float128/strfromf128.c: New file.
Reuse the code for __mpn_extract_long_double to implement
__mpn_extract_float128.
* include/gmp.h: Include bits/floatn.h
(__mpn_extract_float128): Declare when __HAVE_DISTINCT_FLOAT128 is 1.
* stdlib/gmp-impl.h: Also check if alloca is not defined before
including stack-alloc.h. It could have been defined by other header
which not necessarily defines HAVE_ALLOCA.
* sysdeps/ieee754/float128/Makefile: New file.
* sysdeps/ieee754/float128/float1282mpn.c: New file.
* sysdeps/ieee754/float128/float128_private.h: Include gmp.h before
redefining __mpn_extract_long_double to __mpn_extract_float128, then
redefine __mpn_extract_long_double to __mpn_extract_float128.
* sysdeps/ieee754/ldbl-128/ldbl2mpn.c: Replace long double with
_Float128 to allow float128_private.h overrides.
This change defines float128_private.h which contains
macros used to override long double naming conventions
when building a ldbl file.
* math/math.h [__HAVE_FLOAT128 && __GLIBC_USE (IEC_60559_TYPES_EXT)]
(SNANF128): New macro.
* math/e_sqrtf128.c: New file.
* math/s_fmaxmag_template.c: Include math_private.h in order to
make inline expansion of fabs128().
* math/s_fminmag_template.c: Likewise.
* sysdeps/ieee754/float128/e_acosf128.c: New file.
* sysdeps/ieee754/float128/e_acoshf128.c: New file.
* sysdeps/ieee754/float128/e_asinf128.c: New file.
* sysdeps/ieee754/float128/e_atan2f128.c: New file.
* sysdeps/ieee754/float128/e_atanhf128.c: New file.
* sysdeps/ieee754/float128/e_coshf128.c: New file.
* sysdeps/ieee754/float128/e_exp10f128.c: New file.
* sysdeps/ieee754/float128/e_expf128.c: New file.
* sysdeps/ieee754/float128/e_fmodf128.c: New file.
* sysdeps/ieee754/float128/e_gammaf128_r.c: New file.
* sysdeps/ieee754/float128/e_hypotf128.c: New file.
* sysdeps/ieee754/float128/e_ilogbf128.c: New file.
* sysdeps/ieee754/float128/e_j0f128.c: New file.
* sysdeps/ieee754/float128/e_j1f128.c: New file.
* sysdeps/ieee754/float128/e_jnf128.c: New file.
* sysdeps/ieee754/float128/e_lgammaf128_r.c: New file.
* sysdeps/ieee754/float128/e_log10f128.c: New file.
* sysdeps/ieee754/float128/e_log2f128.c: New file.
* sysdeps/ieee754/float128/e_logf128.c: New file.
* sysdeps/ieee754/float128/e_powf128.c: New file.
* sysdeps/ieee754/float128/e_rem_pio2f128.c: New file.
* sysdeps/ieee754/float128/e_remainderf128.c: New file.
* sysdeps/ieee754/float128/e_scalbf128.c: New file.
* sysdeps/ieee754/float128/e_sinhf128.c: New file.
* sysdeps/ieee754/float128/float128_private.h: New file.
* sysdeps/ieee754/float128/gamma_productf128.c: New file.
* sysdeps/ieee754/float128/ieee754_float128.h: New file.
* sysdeps/ieee754/float128/k_cosf128.c: New file.
* sysdeps/ieee754/float128/k_sincosf128.c: New file.
* sysdeps/ieee754/float128/k_sinf128.c: New file.
* sysdeps/ieee754/float128/k_tanf128.c: New file.
* sysdeps/ieee754/float128/lgamma_negf128.c: New file.
* sysdeps/ieee754/float128/lgamma_productf128.c: New file.
* sysdeps/ieee754/float128/s_asinhf128.c: New file.
* sysdeps/ieee754/float128/s_atanf128.c: New file.
* sysdeps/ieee754/float128/s_cbrtf128.c: New file.
* sysdeps/ieee754/float128/s_ceilf128.c: New file.
* sysdeps/ieee754/float128/s_copysignf128.c: New file.
* sysdeps/ieee754/float128/s_cosf128.c: New file.
* sysdeps/ieee754/float128/s_erff128.c: New file.
* sysdeps/ieee754/float128/s_expm1f128.c: New file.
* sysdeps/ieee754/float128/s_fabsf128.c: New file.
* sysdeps/ieee754/float128/s_finitef128.c: New file.
* sysdeps/ieee754/float128/s_floorf128.c: New file.
* sysdeps/ieee754/float128/s_fmaf128.c: New file.
* sysdeps/ieee754/float128/s_fpclassifyf128.c: New file.
* sysdeps/ieee754/float128/s_frexpf128.c: New file.
* sysdeps/ieee754/float128/s_fromfpf128.c: New file.
* sysdeps/ieee754/float128/s_fromfpxf128.c: New file.
* sysdeps/ieee754/float128/s_getpayloadf128.c: New file.
* sysdeps/ieee754/float128/s_isinff128.c: New file.
* sysdeps/ieee754/float128/s_isnanf128.c: New file.
* sysdeps/ieee754/float128/s_issignalingf128.c: New file.
* sysdeps/ieee754/float128/s_llrintf128.c: New file.
* sysdeps/ieee754/float128/s_llroundf128.c: New file.
* sysdeps/ieee754/float128/s_log1pf128.c: New file.
* sysdeps/ieee754/float128/s_logbf128.c: New file.
* sysdeps/ieee754/float128/s_lrintf128.c: New file.
* sysdeps/ieee754/float128/s_lroundf128.c: New file.
* sysdeps/ieee754/float128/s_modff128.c: New file.
* sysdeps/ieee754/float128/s_nearbyintf128.c: New file.
* sysdeps/ieee754/float128/s_nextafterf128.c: New file.
* sysdeps/ieee754/float128/s_nexttowardf128.c: New file.
* sysdeps/ieee754/float128/s_nextupf128.c: New file.
* sysdeps/ieee754/float128/s_remquof128.c: New file.
* sysdeps/ieee754/float128/s_rintf128.c: New file.
* sysdeps/ieee754/float128/s_roundevenf128.c: New file.
* sysdeps/ieee754/float128/s_roundf128.c: New file.
* sysdeps/ieee754/float128/s_scalblnf128.c: New file.
* sysdeps/ieee754/float128/s_scalbnf128.c: New file.
* sysdeps/ieee754/float128/s_setpayloadf128.c: New file.
* sysdeps/ieee754/float128/s_setpayloadsigf128.c: New file.
* sysdeps/ieee754/float128/s_signbitf128.c: New file.
* sysdeps/ieee754/float128/s_significandf128.c: New file.
* sysdeps/ieee754/float128/s_sincosf128.c: New file.
* sysdeps/ieee754/float128/s_sinf128.c: New file.
* sysdeps/ieee754/float128/s_tanf128.c: New file.
* sysdeps/ieee754/float128/s_tanhf128.c: New file.
* sysdeps/ieee754/float128/s_totalorderf128.c: New file.
* sysdeps/ieee754/float128/s_totalordermagf128.c: New file.
* sysdeps/ieee754/float128/s_truncf128.c: New file.
* sysdeps/ieee754/float128/s_ufromfpf128.c: New file.
* sysdeps/ieee754/float128/s_ufromfpxf128.c: New file.
* sysdeps/ieee754/float128/t_sincosf128.c: New file.
* sysdeps/ieee754/float128/x2y2m1f128.c: New file.
* sysdeps/ieee754/ldbl-128ibm/bits/iscanonical.h:
(__iscanonicalf128): Define as a macro.
This adds the appropriate common bits for a platform to
enable float128 and expose ABI.
* math/Makefile:
(type-float128-suffix): New variable
(type-float128-routines): Likewise
(type-float128-yes): Likewise
(types): Append float128 if supported
(types-basic): New variable to control the use of templates for
float, double, and long double, but not for float128 or newer types.
(type-basic-foreach): Likewise.
* sysdeps/ieee754/float128/Makeconfig: New file.
* sysdeps/ieee754/float128/Versions: New file.
Gabriel F. T. Gomes
Joseph Myers
Zack Weinberg
Paul E. Murphy