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13 Commits

Author SHA1 Message Date
Joseph Myers
f7a9f785e5 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Joseph Myers
e02cabecf0 Refactor strtod parsing of NaN payloads. 
The nan* functions handle their string argument by constructing a
NAN(...) string on the stack as a VLA and passing it to strtod
functions.

This approach has problems discussed in bug 16961 and bug 16962: the
stack usage is unbounded, and it gives incorrect results in certain
cases where the argument is not a valid n-char-sequence.

The natural fix for both issues is to refactor the NaN payload parsing
out of strtod into a separate function that the nan* functions can
call directly, so that no temporary string needs constructing on the
stack at all.  This patch does that refactoring in preparation for
fixing those bugs (but without actually using the new functions from
nan* - which will also require exporting them from libc at version
GLIBC_PRIVATE).  This patch is not intended to change any user-visible
behavior, so no tests are added (fixes for the above bugs will of
course add tests for them).

This patch builds on my recent fixes for strtol and strtod issues in
Turkish locales.  Given those fixes, the parsing of NaN payloads is
locale-independent; thus, the new functions do not need to take a
locale_t argument.

Tested for x86_64, x86, mips64 and powerpc.

	* stdlib/strtod_nan.c: New file.
	* stdlib/strtod_nan_double.h: Likewise.
	* stdlib/strtod_nan_float.h: Likewise.
	* stdlib/strtod_nan_main.c: Likewise.
	* stdlib/strtod_nan_narrow.h: Likewise.
	* stdlib/strtod_nan_wide.h: Likewise.
	* stdlib/strtof_nan.c: Likewise.
	* stdlib/strtold_nan.c: Likewise.
	* sysdeps/ieee754/ldbl-128/strtod_nan_ldouble.h: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/strtod_nan_ldouble.h: Likewise.
	* sysdeps/ieee754/ldbl-96/strtod_nan_ldouble.h: Likewise.
	* wcsmbs/wcstod_nan.c: Likewise.
	* wcsmbs/wcstof_nan.c: Likewise.
	* wcsmbs/wcstold_nan.c: Likewise.
	* stdlib/Makefile (routines): Add strtof_nan, strtod_nan and
	strtold_nan.
	* wcsmbs/Makefile (routines): Add wcstod_nan, wcstold_nan and
	wcstof_nan.
	* include/stdlib.h (__strtof_nan): Declare and use
	libc_hidden_proto.
	(__strtod_nan): Likewise.
	(__strtold_nan): Likewise.
	(__wcstof_nan): Likewise.
	(__wcstod_nan): Likewise.
	(__wcstold_nan): Likewise.
	* include/wchar.h (____wcstoull_l_internal): Declare.
	* stdlib/strtod_l.c: Do not include <ieee754.h>.
	(____strtoull_l_internal): Remove declaration.
	(STRTOF_NAN): Define macro.
	(SET_MANTISSA): Remove macro.
	(STRTOULL): Likewise.
	(____STRTOF_INTERNAL): Use STRTOF_NAN to parse NaN payload.
	* stdlib/strtof_l.c (____strtoull_l_internal): Remove declaration.
	(STRTOF_NAN): Define macro.
	(SET_MANTISSA): Remove macro.
	* sysdeps/ieee754/ldbl-128/strtold_l.c (STRTOF_NAN): Define macro.
	(SET_MANTISSA): Remove macro.
	* sysdeps/ieee754/ldbl-128ibm/strtold_l.c (STRTOF_NAN): Define
	macro.
	(SET_MANTISSA): Remove macro.
	* sysdeps/ieee754/ldbl-64-128/strtold_l.c (STRTOF_NAN): Define
	macro.
	(SET_MANTISSA): Remove macro.
	* sysdeps/ieee754/ldbl-96/strtold_l.c (STRTOF_NAN): Define macro.
	(SET_MANTISSA): Remove macro.
	* wcsmbs/wcstod_l.c (____wcstoull_l_internal): Remove declaration.
	* wcsmbs/wcstof_l.c (____wcstoull_l_internal): Likewise.
	* wcsmbs/wcstold_l.c (____wcstoull_l_internal): Likewise.
 2015-11-24 22:24:52 +00:00
Joseph Myers
b168057aaa Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
Allan McRae
d4697bc93d Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
Alan Modra
9605ca6c08 IBM long double mechanical changes to support little-endian 
http://sourceware.org/ml/libc-alpha/2013-07/msg00001.html

This patch starts the process of supporting powerpc64 little-endian
long double in glibc.  IBM long double is an array of two ieee
doubles, so making union ibm_extended_long_double reflect this fact is
the correct way to access fields of the doubles.

	* sysdeps/ieee754/ldbl-128ibm/ieee754.h
	(union ibm_extended_long_double): Define as an array of ieee754_double.
	(IBM_EXTENDED_LONG_DOUBLE_BIAS): Delete.
	* sysdeps/ieee754/ldbl-128ibm/printf_fphex.c: Update all references
	to ibm_extended_long_double and IBM_EXTENDED_LONG_DOUBLE_BIAS.
	* sysdeps/ieee754/ldbl-128ibm/e_exp10l.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_expl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/ldbl2mpn.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/math_ldbl.h: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/mpn2ldbl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_nearbyintl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/strtold_l.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/x2y2m1l.c: Likewise.
 2013-10-04 10:28:42 +09:30
Thomas Schwinge
0007fc9bdd [BZ #15522] strtod ("nan(N)") returning a sNaN in some cases 2013-08-29 12:22:10 +02:00
Joseph Myers
568035b787 Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
Paul Eggert
59ba27a63a Replace FSF snail mail address with URLs. 2012-02-09 23:18:22 +00:00
Jakub Jelinek
1e28665349 * sysdeps/ieee754/ldbl-128ibm/strtold_l.c (___new_strtold_l, 
___new_wcstold_l): New weak aliases. 
(strtold_l, wcstold_l): Use them as second argument for 
long_double_symbol.
2007-08-10  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/ieee754/ldbl-128ibm/strtold_l.c (___new_strtold_l,
	___new_wcstold_l): New weak aliases.
	(strtold_l, wcstold_l): Use them as second argument for
	long_double_symbol.
 2007-08-10 17:59:27 +00:00
Roland McGrath
773e305efc * include/stdlib.h: Add libc_hidden_proto for strto*, __strto*_l. 
Remove __strto*_l inlines.
	* include/wchar.h: Add libc_hidden_proto for wcsto*, __wcsto*_l.
	* stdlib/strtod.c: Add libc_hidden_def.
	* stdlib/strtod_l.c: Likewise.
	* stdlib/strtold.c [__LONG_DOUBLE_MATH_OPTIONAL]: Add libc_hidden_proto
	for __new_strtold and __new_wcstold.
	* sysdeps/ieee754/ldbl-128ibm/strtold_l.c: Add libc_hidden_proto for
	__STRTOF, STRTOF.
	* stdlib/strtol.c: Add libc_hidden_def.
	* stdlib/strtol_l.c: Likewise.
	* sysdeps/wordsize-64/strtol.c: Add libc_hidden_ver for strtoll and
	strtoq.

	* scripts/data/localplt-powerpc-linux-gnu.data: New file.

	* scripts/data/localplt-x86_64-linux-gnu.data: File renamed to ...
	* scripts/data/localplt-generic.data: ... here.
	* elf/Makefile (check-data): Get generic file if no other.
	($(objpfx)check-localplt.out): Make target unconditional.
 2007-08-07 05:36:32 +00:00
Roland McGrath
f964490f3c 2006-01-27 Dwayne Grant McConnell <decimal@us.ibm.com> 
Jakub Jelinek  <jakub@redhat.com>
	    Roland McGrath  <roland@redhat.com>
	    Steven Munroe  <sjmunroe@us.ibm.com>
	    Alan Modra  <amodra@bigpond.net.au>

	* sysdeps/powerpc/powerpc64/fpu/s_truncf.S: Comment fix.
	* sysdeps/powerpc/powerpc32/fpu/s_truncf.S: Likewise.
	* sysdeps/powerpc/powerpc64/fpu/s_llroundf.S: Likewise.

	* sysdeps/powerpc/fpu/libm-test-ulps: Update.

	* math/libm-test.inc (check_float_internal): Allow ulp <= 0.5.
	(erfc_test): Don't run erfcl (27.0L) test if erfcl (27.0L) is
	denormal.
	[TEST_LDOUBLE] (ceil_test, floor_test, llrint_test, llround_test,
	rint_test, round_test, trunc_test): Add new tests.

	* sysdeps/powerpc/powerpc32/fpu/s_copysignl.S: New file.
	* sysdeps/powerpc/powerpc32/fpu/s_fabs.S: New file.
	* sysdeps/powerpc/powerpc32/fpu/s_fabsl.S: New file.
	* sysdeps/powerpc/powerpc32/fpu/s_fdim.c: New file.
	* sysdeps/powerpc/powerpc32/fpu/s_fmax.S: New file.
	* sysdeps/powerpc/powerpc32/fpu/s_fmin.S: New file.
	* sysdeps/powerpc/powerpc32/fpu/s_isnan.c: New file.

	* sysdeps/powerpc/powerpc64/fpu/s_ceill.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_copysignl.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_fabs.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_fabsl.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_fdim.c: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_floorl.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_fmax.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_fmin.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_isnan.c: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_llrintl.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_llroundl.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_lrintl.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_lroundl.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_nearbyintl.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_rintl.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_roundl.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_truncl.S: New file.

	* sysdeps/unix/sysv/linux/powerpc/Implies: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/fpu/Implies: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/Implies: New file.
	* sysdeps/unix/sysv/linux/powerpc/configure.in: New file.
	* sysdeps/unix/sysv/linux/powerpc/configure: New file.
	* sysdeps/unix/sysv/linux/powerpc/bits/wordsize.h
	(__LONG_DOUBLE_MATH_OPTIONAL): Define.
	(__NO_LONG_DOUBLE_MATH): Define.
	* sysdeps/unix/sysv/linux/powerpc/nldbl-abi.h: New file.
	* sysdeps/powerpc/fpu/s_isnan.c: Include math_ldbl_opt.h.
	* sysdeps/powerpc/powerpc64/fpu/s_ceil.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (ceill): Add compatibility symbols.
	* sysdeps/powerpc/powerpc64/fpu/s_copysign.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (copysignl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc64/fpu/s_floor.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (floorl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc64/fpu/s_llrint.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (llrintl, lrintl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc64/fpu/s_llround.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (llroundl, lroundl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc64/fpu/s_rint.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (rintl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc64/fpu/s_round.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (roundl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc64/fpu/s_trunc.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (truncl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc32/fpu/s_ceil.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (ceill): Add compatibility symbols.
	* sysdeps/powerpc/powerpc32/fpu/s_copysign.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (copysignl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc32/fpu/s_floor.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (floorl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc32/fpu/s_lrint.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (lrintl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc32/fpu/s_llrint.c: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (llrintl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc32/fpu/s_lround.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (lroundl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc32/fpu/s_rint.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (rintl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc32/fpu/s_round.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (roundl): Add compatibility symbols.
	* sysdeps/powerpc/powerpc32/fpu/s_trunc.S: Include math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (truncl): Add compatibility symbols.

	* misc/qefgcvt_r.c [LDBL_MIN_10_EXP == -291] (FLOAT_MIN_10_NORM): New.

	* sysdeps/powerpc/fpu/bits/mathdef.h (__NO_LONG_DOUBLE_MATH): Remove.
	* sysdeps/powerpc/Implies: Add ieee754/ldbl-128ibm.
	* sysdeps/powerpc/powerpc32/Implies: Remove powerpc/soft-fp.
	* sysdeps/ieee754/ldbl-128ibm/Makefile: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_acoshl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_acosl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_asinl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_atan2l.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_atanhl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_coshl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_expl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_fmodl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_hypotl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_j0l.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_j1l.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_jnl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_lgammal_r.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_log10l.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_log2l.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_logl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_powl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_rem_pio2l.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_remainderl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_sinhl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/e_sqrtl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/ieee754.h: New file.
	* sysdeps/ieee754/ldbl-128ibm/k_cosl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/k_sincosl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/k_sinl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/k_tanl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/ldbl2mpn.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/math_ldbl.h: New file.
	* sysdeps/ieee754/ldbl-128ibm/mpn2ldbl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/printf_fphex.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_asinhl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_atanl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_cbrtl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_cosl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_erfl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_expm1l.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_fabsl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_finitel.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_fpclassifyl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_frexpl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_ilogbl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_isinfl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_isnanl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_log1pl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_logbl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_modfl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_nexttowardf.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_remquol.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_rintl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_scalblnl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_scalbnl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_signbitl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_sincosl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_sinl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_tanhl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_tanl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_truncl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/strtold_l.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/t_sincosl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/w_expl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_copysignl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_floorl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_llrintl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_llroundl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_roundl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_ceill.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_nearbyintl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_lrintl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_lroundl.c: New file.

	* sysdeps/ieee754/ldbl-128/e_powl.c: Fix old comment.
 2006-01-28 00:15:15 +00:00
Ulrich Drepper
a334319f65 (CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4. 2004-12-22 20:10:10 +00:00
Jakub Jelinek
0ecb606cb6 2.5-18.1 2007-07-12 18:26:36 +00:00