Commit Graph

32669 Commits

Author SHA1 Message Date
Joseph Myers
be3a79a3cc Use __builtin_tgmath in tgmath.h with GCC 8 (bug 21660).
GCC mainline now supports __builtin_tgmath to allow <tgmath.h> macro
implementations that expand their arguments only once, so avoiding
exponential blowup in the size of macro expansions when calls to those
macros are nested in arguments to those macros.

This patch makes glibc's tgmath.h support using __builtin_tgmath, as a
much simpler and more efficient alternative to the existing
implementation.  (As a side effect, the new feature would make it much
more practical to support decimal floating point in <tgmath.h> with
new compilers; currently, libdfp does not provide a <tgmath.h>
implementation, and making decimal arguments cause integer arguments
to be considered of type _Decimal64 instead of double would have been
very problematic in the old implementation.)

Tested for x86_64 (with GCC mainline).

	[BZ #21660]
	* math/tgmath.h (__HAVE_BUILTIN_TGMATH): New macro.
	[__HAVE_BUILTIN_TGMATH] (__TG_F16_ARG): Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TG_F32_ARG): Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TG_F64_ARG): Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TG_F128_ARG): Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TG_F32X_ARG): Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TG_F64X_ARG): Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TG_F128X_ARG): Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TGMATH_FUNCS): Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TGMATH_RCFUNCS): Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TGMATH_1): Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TGMATH_2): Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TGMATH_2STD): Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TGMATH_3): Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TGMATH_1C): Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TGMATH_2C): Likewise.
	(__tgml): Make conditional on [!__HAVE_BUILTIN_TGMATH].
	(__floating_type): Likewise.
	(__real_integer_type): Likewise.
	(__complex_integer_type): Likewise.
	(__expr_is_real): Likewise.
	(__tgmath_real_type_sub): Likewise.
	(__tgmath_real_type): Likewise.
	(__tgmath_complex_type_sub): Likewise.
	(__tgmath_complex_type): Likewise.
	(__TGMATH_F128): Likewise.
	(__TGMATH_CF128): Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TGMATH_UNARY_REAL_ONLY): Define using
	new macros.
	[__HAVE_BUILTIN_TGMATH] (__TGMATH_UNARY_REAL_RET_ONLY): Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TGMATH_BINARY_FIRST_REAL_ONLY):
	Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TGMATH_BINARY_FIRST_REAL_STD_ONLY):
	Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TGMATH_BINARY_REAL_ONLY): Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TGMATH_BINARY_REAL_STD_ONLY): Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TGMATH_BINARY_REAL_RET_ONLY): Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TGMATH_TERNARY_FIRST_SECOND_REAL_ONLY):
	Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TGMATH_TERNARY_REAL_ONLY): Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TGMATH_TERNARY_FIRST_REAL_RET_ONLY):
	Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TGMATH_UNARY_REAL_IMAG): Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TGMATH_UNARY_IMAG): Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TGMATH_UNARY_REAL_IMAG_RET_REAL):
	Likewise.
	[__HAVE_BUILTIN_TGMATH] (__TGMATH_BINARY_REAL_IMAG): Likewise.
	(__TGMATH_UNARY_REAL_IMAG_RET_REAL_SAME): New macro.
	(carg): Use __TGMATH_UNARY_REAL_IMAG_RET_REAL_SAME.
	(cimag): Likewise.
	(creal): Likewise.
2017-11-15 02:08:56 +00:00
Joseph Myers
2e64ec9c9e Fix string/tester.c build with GCC 8.
GCC 8 warns about more cases of string functions truncating their
output or not copying a trailing NUL byte.

This patch fixes testsuite build failures caused by such warnings in
string/tester.c.  In general, the warnings are disabled around the
relevant calls using DIAG_* macros, since the relevant cases are being
deliberately tested.  In one case, the warning is with
-Wstringop-overflow= instead of -Wstringop-truncation; in that case,
the conditional is __GNUC_PREREQ (7, 0) (being the version where
-Wstringop-overflow= was introduced), to allow the conditional to be
removed sooner, since it's harmless to disable the warning for a
GCC version where it doesn't actually occur.  In the case of warnings
for strncpy calls in test_memcmp, the calls in question are changed to
use memcpy, as they don't copy a trailing NUL and the point of that
code is to test memcmp rather than strncpy.

Tested (compilation) with GCC 8 for x86_64-linux-gnu with
build-many-glibcs.py (in conjunction with Martin's patch to allow
glibc to build).

	* string/tester.c (test_stpncpy): Disable -Wstringop-truncation
	for stpncpy calls for GCC 8.
	(test_strncat): Disable -Wstringop-truncation warning for strncat
	calls for GCC 8.  Disable -Wstringop-overflow= warning for one
	strncat call for GCC 7.
	(test_strncpy): Disable -Wstringop-truncation warning for strncpy
	calls for GCC 8.
	(test_memcmp): Use memcpy instead of strncpy for calls not copying
	trailing NUL.
2017-11-14 17:52:26 +00:00
Joseph Myers
ec72135e5f Fix string/bug-strncat1.c build with GCC 8.
GCC 8 warns about strncat calls with truncated output.
string/bug-strncat1.c tests such a call; this patch disables the
warning for it.

Tested (compilation) with GCC 8 for x86_64-linux-gnu with
build-many-glibcs.py (in conjunction with Martin's patch to allow
glibc to build).

	* string/bug-strncat1.c: Include <libc-diag.h>.
	(main): Disable -Wstringop-truncation for strncat call for GCC 8.
2017-11-14 17:50:36 +00:00
Claude Paroz
a259f5d388 Replaced unicode sequences in the ASCII printable range
[BZ #22387]
	* localedata/locales/aa_DJ: Improved readibility by replacing
	<Uxxxx> sequences in the ASCII printable range by their ASCII
	character equivalents.
	* localedata/locales/aa_ER: Likewise.
	* localedata/locales/aa_ER@saaho: Likewise.
	* localedata/locales/aa_ET: Likewise.
	* localedata/locales/af_ZA: Likewise.
	* localedata/locales/agr_PE: Likewise.
	* localedata/locales/ak_GH: Likewise.
	* localedata/locales/am_ET: Likewise.
	* localedata/locales/anp_IN: Likewise.
	* localedata/locales/ar_AE: Likewise.
	* localedata/locales/ar_BH: Likewise.
	* localedata/locales/ar_DZ: Likewise.
	* localedata/locales/ar_EG: Likewise.
	* localedata/locales/ar_IN: Likewise.
	* localedata/locales/ar_IQ: Likewise.
	* localedata/locales/ar_JO: Likewise.
	* localedata/locales/ar_KW: Likewise.
	* localedata/locales/ar_LB: Likewise.
	* localedata/locales/ar_LY: Likewise.
	* localedata/locales/ar_MA: Likewise.
	* localedata/locales/ar_OM: Likewise.
	* localedata/locales/ar_QA: Likewise.
	* localedata/locales/ar_SA: Likewise.
	* localedata/locales/ar_SD: Likewise.
	* localedata/locales/ar_SS: Likewise.
	* localedata/locales/ar_SY: Likewise.
	* localedata/locales/ar_TN: Likewise.
	* localedata/locales/ar_YE: Likewise.
	* localedata/locales/as_IN: Likewise.
	* localedata/locales/ast_ES: Likewise.
	* localedata/locales/ayc_PE: Likewise.
	* localedata/locales/az_AZ: Likewise.
	* localedata/locales/az_IR: Likewise.
	* localedata/locales/be_BY: Likewise.
	* localedata/locales/be_BY@latin: Likewise.
	* localedata/locales/bem_ZM: Likewise.
	* localedata/locales/ber_DZ: Likewise.
	* localedata/locales/ber_MA: Likewise.
	* localedata/locales/bg_BG: Likewise.
	* localedata/locales/bhb_IN: Likewise.
	* localedata/locales/bho_IN: Likewise.
	* localedata/locales/bi_VU: Likewise.
	* localedata/locales/bn_BD: Likewise.
	* localedata/locales/bn_IN: Likewise.
	* localedata/locales/bo_CN: Likewise.
	* localedata/locales/bo_IN: Likewise.
	* localedata/locales/br_FR: Likewise.
	* localedata/locales/brx_IN: Likewise.
	* localedata/locales/bs_BA: Likewise.
	* localedata/locales/byn_ER: Likewise.
	* localedata/locales/ca_AD: Likewise.
	* localedata/locales/ca_ES: Likewise.
	* localedata/locales/ca_FR: Likewise.
	* localedata/locales/ca_IT: Likewise.
	* localedata/locales/ce_RU: Likewise.
	* localedata/locales/chr_US: Likewise.
	* localedata/locales/cmn_TW: Likewise.
	* localedata/locales/crh_UA: Likewise.
	* localedata/locales/cs_CZ: Likewise.
	* localedata/locales/csb_PL: Likewise.
	* localedata/locales/cv_RU: Likewise.
	* localedata/locales/cy_GB: Likewise.
	* localedata/locales/da_DK: Likewise.
	* localedata/locales/de_AT: Likewise.
	* localedata/locales/de_BE: Likewise.
	* localedata/locales/de_CH: Likewise.
	* localedata/locales/de_DE: Likewise.
	* localedata/locales/de_IT: Likewise.
	* localedata/locales/de_LI: Likewise.
	* localedata/locales/de_LU: Likewise.
	* localedata/locales/doi_IN: Likewise.
	* localedata/locales/dv_MV: Likewise.
	* localedata/locales/dz_BT: Likewise.
	* localedata/locales/el_CY: Likewise.
	* localedata/locales/el_GR: Likewise.
	* localedata/locales/en_AG: Likewise.
	* localedata/locales/en_AU: Likewise.
	* localedata/locales/en_BW: Likewise.
	* localedata/locales/en_CA: Likewise.
	* localedata/locales/en_DK: Likewise.
	* localedata/locales/en_GB: Likewise.
	* localedata/locales/en_HK: Likewise.
	* localedata/locales/en_IE: Likewise.
	* localedata/locales/en_IL: Likewise.
	* localedata/locales/en_IN: Likewise.
	* localedata/locales/en_NG: Likewise.
	* localedata/locales/en_NZ: Likewise.
	* localedata/locales/en_PH: Likewise.
	* localedata/locales/en_SG: Likewise.
	* localedata/locales/en_US: Likewise.
	* localedata/locales/en_ZA: Likewise.
	* localedata/locales/en_ZM: Likewise.
	* localedata/locales/en_ZW: Likewise.
	* localedata/locales/eo: Likewise.
	* localedata/locales/es_AR: Likewise.
	* localedata/locales/es_BO: Likewise.
	* localedata/locales/es_CL: Likewise.
	* localedata/locales/es_CO: Likewise.
	* localedata/locales/es_CR: Likewise.
	* localedata/locales/es_CU: Likewise.
	* localedata/locales/es_DO: Likewise.
	* localedata/locales/es_EC: Likewise.
	* localedata/locales/es_ES: Likewise.
	* localedata/locales/es_GT: Likewise.
	* localedata/locales/es_HN: Likewise.
	* localedata/locales/es_MX: Likewise.
	* localedata/locales/es_NI: Likewise.
	* localedata/locales/es_PA: Likewise.
	* localedata/locales/es_PE: Likewise.
	* localedata/locales/es_PR: Likewise.
	* localedata/locales/es_PY: Likewise.
	* localedata/locales/es_SV: Likewise.
	* localedata/locales/es_US: Likewise.
	* localedata/locales/es_UY: Likewise.
	* localedata/locales/es_VE: Likewise.
	* localedata/locales/et_EE: Likewise.
	* localedata/locales/eu_ES: Likewise.
	* localedata/locales/eu_ES@euro: Likewise.
	* localedata/locales/fa_IR: Likewise.
	* localedata/locales/ff_SN: Likewise.
	* localedata/locales/fi_FI: Likewise.
	* localedata/locales/fil_PH: Likewise.
	* localedata/locales/fo_FO: Likewise.
	* localedata/locales/fr_BE: Likewise.
	* localedata/locales/fr_CA: Likewise.
	* localedata/locales/fr_CH: Likewise.
	* localedata/locales/fr_FR: Likewise.
	* localedata/locales/fr_LU: Likewise.
	* localedata/locales/fur_IT: Likewise.
	* localedata/locales/fy_DE: Likewise.
	* localedata/locales/fy_NL: Likewise.
	* localedata/locales/ga_IE: Likewise.
	* localedata/locales/gd_GB: Likewise.
	* localedata/locales/gez_ER: Likewise.
	* localedata/locales/gez_ET: Likewise.
	* localedata/locales/gl_ES: Likewise.
	* localedata/locales/gu_IN: Likewise.
	* localedata/locales/gv_GB: Likewise.
	* localedata/locales/ha_NG: Likewise.
	* localedata/locales/hak_TW: Likewise.
	* localedata/locales/he_IL: Likewise.
	* localedata/locales/hi_IN: Likewise.
	* localedata/locales/hif_FJ: Likewise.
	* localedata/locales/hne_IN: Likewise.
	* localedata/locales/hr_HR: Likewise.
	* localedata/locales/hsb_DE: Likewise.
	* localedata/locales/ht_HT: Likewise.
	* localedata/locales/hu_HU: Likewise.
	* localedata/locales/hy_AM: Likewise.
	* localedata/locales/i18n: Likewise.
	* localedata/locales/ia_FR: Likewise.
	* localedata/locales/id_ID: Likewise.
	* localedata/locales/ig_NG: Likewise.
	* localedata/locales/ik_CA: Likewise.
	* localedata/locales/is_IS: Likewise.
	* localedata/locales/it_CH: Likewise.
	* localedata/locales/it_IT: Likewise.
	* localedata/locales/iu_CA: Likewise.
	* localedata/locales/ja_JP: Likewise.
	* localedata/locales/ka_GE: Likewise.
	* localedata/locales/kk_KZ: Likewise.
	* localedata/locales/kl_GL: Likewise.
	* localedata/locales/kn_IN: Likewise.
	* localedata/locales/ko_KR: Likewise.
	* localedata/locales/kok_IN: Likewise.
	* localedata/locales/ks_IN: Likewise.
	* localedata/locales/ks_IN@devanagari: Likewise.
	* localedata/locales/ku_TR: Likewise.
	* localedata/locales/kw_GB: Likewise.
	* localedata/locales/ky_KG: Likewise.
	* localedata/locales/lb_LU: Likewise.
	* localedata/locales/lg_UG: Likewise.
	* localedata/locales/li_BE: Likewise.
	* localedata/locales/li_NL: Likewise.
	* localedata/locales/lij_IT: Likewise.
	* localedata/locales/ln_CD: Likewise.
	* localedata/locales/lo_LA: Likewise.
	* localedata/locales/lt_LT: Likewise.
	* localedata/locales/lv_LV: Likewise.
	* localedata/locales/lzh_TW: Likewise.
	* localedata/locales/mag_IN: Likewise.
	* localedata/locales/mai_IN: Likewise.
	* localedata/locales/mg_MG: Likewise.
	* localedata/locales/mhr_RU: Likewise.
	* localedata/locales/mi_NZ: Likewise.
	* localedata/locales/mk_MK: Likewise.
	* localedata/locales/ml_IN: Likewise.
	* localedata/locales/mn_MN: Likewise.
	* localedata/locales/mni_IN: Likewise.
	* localedata/locales/mr_IN: Likewise.
	* localedata/locales/ms_MY: Likewise.
	* localedata/locales/mt_MT: Likewise.
	* localedata/locales/my_MM: Likewise.
	* localedata/locales/nan_TW: Likewise.
	* localedata/locales/nan_TW@latin: Likewise.
	* localedata/locales/nb_NO: Likewise.
	* localedata/locales/nds_DE: Likewise.
	* localedata/locales/nds_NL: Likewise.
	* localedata/locales/ne_NP: Likewise.
	* localedata/locales/nhn_MX: Likewise.
	* localedata/locales/niu_NU: Likewise.
	* localedata/locales/niu_NZ: Likewise.
	* localedata/locales/nl_AW: Likewise.
	* localedata/locales/nl_BE: Likewise.
	* localedata/locales/nl_NL: Likewise.
	* localedata/locales/nn_NO: Likewise.
	* localedata/locales/nr_ZA: Likewise.
	* localedata/locales/nso_ZA: Likewise.
	* localedata/locales/oc_FR: Likewise.
	* localedata/locales/om_ET: Likewise.
	* localedata/locales/om_KE: Likewise.
	* localedata/locales/or_IN: Likewise.
	* localedata/locales/os_RU: Likewise.
	* localedata/locales/pa_IN: Likewise.
	* localedata/locales/pa_PK: Likewise.
	* localedata/locales/pap_AW: Likewise.
	* localedata/locales/pap_CW: Likewise.
	* localedata/locales/pl_PL: Likewise.
	* localedata/locales/ps_AF: Likewise.
	* localedata/locales/pt_BR: Likewise.
	* localedata/locales/pt_PT: Likewise.
	* localedata/locales/quz_PE: Likewise.
	* localedata/locales/raj_IN: Likewise.
	* localedata/locales/ro_RO: Likewise.
	* localedata/locales/ru_RU: Likewise.
	* localedata/locales/ru_UA: Likewise.
	* localedata/locales/rw_RW: Likewise.
	* localedata/locales/sa_IN: Likewise.
	* localedata/locales/sat_IN: Likewise.
	* localedata/locales/sc_IT: Likewise.
	* localedata/locales/sd_IN: Likewise.
	* localedata/locales/sd_IN@devanagari: Likewise.
	* localedata/locales/se_NO: Likewise.
	* localedata/locales/sgs_LT: Likewise.
	* localedata/locales/shs_CA: Likewise.
	* localedata/locales/si_LK: Likewise.
	* localedata/locales/sid_ET: Likewise.
	* localedata/locales/sk_SK: Likewise.
	* localedata/locales/sl_SI: Likewise.
	* localedata/locales/sm_WS: Likewise.
	* localedata/locales/so_DJ: Likewise.
	* localedata/locales/so_ET: Likewise.
	* localedata/locales/so_KE: Likewise.
	* localedata/locales/so_SO: Likewise.
	* localedata/locales/sq_AL: Likewise.
	* localedata/locales/sq_MK: Likewise.
	* localedata/locales/sr_ME: Likewise.
	* localedata/locales/sr_RS: Likewise.
	* localedata/locales/sr_RS@latin: Likewise.
	* localedata/locales/ss_ZA: Likewise.
	* localedata/locales/st_ZA: Likewise.
	* localedata/locales/sv_FI: Likewise.
	* localedata/locales/sv_SE: Likewise.
	* localedata/locales/sw_KE: Likewise.
	* localedata/locales/sw_TZ: Likewise.
	* localedata/locales/szl_PL: Likewise.
	* localedata/locales/ta_IN: Likewise.
	* localedata/locales/ta_LK: Likewise.
	* localedata/locales/tcy_IN: Likewise.
	* localedata/locales/te_IN: Likewise.
	* localedata/locales/tg_TJ: Likewise.
	* localedata/locales/th_TH: Likewise.
	* localedata/locales/the_NP: Likewise.
	* localedata/locales/ti_ER: Likewise.
	* localedata/locales/ti_ET: Likewise.
	* localedata/locales/tig_ER: Likewise.
	* localedata/locales/tk_TM: Likewise.
	* localedata/locales/tl_PH: Likewise.
	* localedata/locales/tn_ZA: Likewise.
	* localedata/locales/to_TO: Likewise.
	* localedata/locales/tpi_PG: Likewise.
	* localedata/locales/tr_CY: Likewise.
	* localedata/locales/tr_TR: Likewise.
	* localedata/locales/ts_ZA: Likewise.
	* localedata/locales/tt_RU: Likewise.
	* localedata/locales/tt_RU@iqtelif: Likewise.
	* localedata/locales/ug_CN: Likewise.
	* localedata/locales/uk_UA: Likewise.
	* localedata/locales/unm_US: Likewise.
	* localedata/locales/ur_IN: Likewise.
	* localedata/locales/ur_PK: Likewise.
	* localedata/locales/uz_UZ: Likewise.
	* localedata/locales/uz_UZ@cyrillic: Likewise.
	* localedata/locales/ve_ZA: Likewise.
	* localedata/locales/vi_VN: Likewise.
	* localedata/locales/wa_BE: Likewise.
	* localedata/locales/wae_CH: Likewise.
	* localedata/locales/wal_ET: Likewise.
	* localedata/locales/wo_SN: Likewise.
	* localedata/locales/xh_ZA: Likewise.
	* localedata/locales/yi_US: Likewise.
	* localedata/locales/yo_NG: Likewise.
	* localedata/locales/yue_HK: Likewise.
	* localedata/locales/yuw_PG: Likewise.
	* localedata/locales/zh_CN: Likewise.
	* localedata/locales/zh_HK: Likewise.
	* localedata/locales/zh_SG: Likewise.
	* localedata/locales/zh_TW: Likewise.
	* localedata/locales/zu_ZA: Likewise.
2017-11-14 08:51:13 +01:00
Florian Weimer
cae87e64dc support: Add <support/next_to_fault.h>
Based on the implementation in resolv/tst-inet_pton.c.
2017-11-13 19:29:32 +01:00
Florian Weimer
eceed67166 Add missing ChangeLog sub-entries 2017-11-13 17:58:32 +01:00
H.J. Lu
4a306ef1c8 ld.so: Add architecture specific fields
To support Intel Control-flow Enforcement Technology (CET) run-time
control:

1. An architecture specific field in the writable ld.so namespace is
needed to indicate if CET features are enabled at run-time.
2. An architecture specific field in struct link_map is needed if
CET features are enabled in an ELF module.

This patch adds dl-procruntime.c to the writable ld.so namespace and
link_map.h to struct link_map.

Tested with build-many-glibcs.py.

	* elf/dl-support.c: Include <dl-procruntime.c>.
	* include/link.h: Include <link_map.h>.
	* sysdeps/generic/dl-procruntime.c: New file.
	* sysdeps/generic/link_map.h: Likewise.
	* sysdeps/generic/ldsodefs.h: Include <dl-procruntime.c> in
	the writable ld.so namespace.
2017-11-13 08:02:52 -08:00
Paul Eggert
e69897bf20 timezone: pacify GCC -Wstringop-truncation
Problem reported by Martin Sebor in:
https://sourceware.org/ml/libc-alpha/2017-11/msg00336.html
* timezone/zic.c (writezone): Use memcpy, not strncpy.
2017-11-12 22:00:28 -08:00
Florian Weimer
1ffe1ccb6e support: Add xstrndup, xunlink, xreadlink, support_create_temp_directory 2017-11-12 09:53:06 +01:00
John David Anglin
456b40a97f Fix clog10_downward ulps on hppa.
2017-11-11  John David Anglin  <danglin@gcc.gnu.org>

	* sysdeps/hppa/fpu/libm-test-ulps: Update clog10_downward ulps.
2017-11-11 12:12:28 -05:00
Florian Weimer
c0a25aa92b resolv: More precise checks in res_hnok, res_dnok [BZ #22409] [BZ #22412]
res_hnok rejected some host names used on the Internet, such as
www-.example.com.  res_hnok and res_dnok failed to perform basic syntax
checking on DNS domain names.

Also fix res_mailok, res_ownok.
2017-11-11 11:51:08 +01:00
Florian Weimer
9e0ad3049d resolv: ns_name_pton should report trailing \ as error [BZ #22413] 2017-11-11 11:41:45 +01:00
Florian Weimer
e2a9fca810 resolv: Add tst-ns_name_pton 2017-11-11 11:33:32 +01:00
Florian Weimer
5c1a69238f resolv: Add tst-res_hnok 2017-11-11 11:23:40 +01:00
Florian Weimer
a19c0a1db5 resolv: Use test framework in tst-resolv-network
The main function was left in place by accident when the
test was imported.
2017-11-11 10:54:56 +01:00
H.J. Lu
8cb5295d3f Add jmp_buf-macros.h
Verify that sizes, alignments and field offsets of jmp_buf as well as
sigjmp_buf are unchanged regardless how struct __jmp_buf_tag is defined.
Since jmp_buf is target specific, jmp_buf-macros.h is added for each
Linux target.  A new target must provides its own jmp_buf-macros.h.

TODO: Hurd needs to provide a jmp_buf-macros.h.

Tested with build-many-glibcs.py.

	* include/setjmp.h [!_ISOMAC]: Include <stddef.h> and
	<jmp_buf-macros.h>.
	[!_ISOMAC] (STR_HELPER): New.
	[!_ISOMAC] (STR): Likewise.
	[!_ISOMAC] (TEST_SIZE): Likewise.
	[!_ISOMAC] (TEST_ALIGN): Likewise.
	[!_ISOMAC] (TEST_OFFSET): Likewise.
	[!_ISOMAC] Add _Static_assert to check sizes, alignments and
	field offsets of jmp_buf as well as sigjmp_buf.
	* sysdeps/unix/sysv/linux/aarch64/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/alpha/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/arm/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/hppa/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/m68k/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/jmp_buf-macros.h:
	Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/jmp_buf-macros.h:
	Likewise.
	* sysdeps/unix/sysv/linux/nios2/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/jmp_buf-macros.h:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/jmp_buf-macros.h:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/jmp_buf-macros.h:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/jmp_buf-macros.h:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/jmp_buf-macros.h: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/jmp_buf-macros.h: Likewise.
2017-11-09 05:10:03 -08:00
Joseph Myers
3683b423a4 Handle more _FloatN, _FloatNx types in include/float.h.
Continuing the preparation for additional _FloatN / _FloatNx type
support, this patch adds support in include/float.h.  This header
defines macros for _Float128 properties when using compilers before
GCC 7 that lack those macros in <float.h>.  For testing _Float32 /
_Float64 / _Float32x / _Float64x functions with older compilers, such
macros need to be defined for those types as well; for the older
compilers, those types will always be typedefs for another type, so
the definitions can be in terms of the macros for that other type.

Tested for x86_64.

	* include/float.h
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32] (FLT32_MANT_DIG): New macro.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32] (FLT32_DECIMAL_DIG): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32] (FLT32_DIG): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32] (FLT32_MIN_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32] (FLT32_MIN_10_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32] (FLT32_MAX_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32] (FLT32_MAX_10_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32] (FLT32_MAX): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32] (FLT32_EPSILON): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32] (FLT32_MIN): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32] (FLT32_TRUE_MIN): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64] (FLT64_MANT_DIG): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64] (FLT64_DECIMAL_DIG): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64] (FLT64_DIG): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64] (FLT64_MIN_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64] (FLT64_MIN_10_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64] (FLT64_MAX_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64] (FLT64_MAX_10_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64] (FLT64_MAX): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64] (FLT64_EPSILON): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64] (FLT64_MIN): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64] (FLT64_TRUE_MIN): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32X] (FLT32X_MANT_DIG): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32X] (FLT32X_DECIMAL_DIG): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32X] (FLT32X_DIG): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32X] (FLT32X_MIN_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32X] (FLT32X_MIN_10_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32X] (FLT32X_MAX_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32X] (FLT32X_MAX_10_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32X] (FLT32X_MAX): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32X] (FLT32X_EPSILON): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32X] (FLT32X_MIN): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT32X] (FLT32X_TRUE_MIN): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X] (FLT64X_MANT_DIG): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X] (FLT64X_DECIMAL_DIG): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X] (FLT64X_DIG): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X] (FLT64X_MIN_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X] (FLT64X_MIN_10_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X] (FLT64X_MAX_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X] (FLT64X_MAX_10_EXP): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X] (FLT64X_MAX): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X] (FLT64X_EPSILON): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X] (FLT64X_MIN): Likewise.
	[!__GNUC_PREREQ (7, 0) && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X] (FLT64X_TRUE_MIN): Likewise.
2017-11-07 23:49:04 +00:00
Joseph Myers
58c4a1612d Handle more _FloatN, _FloatNx types in type-generic strtod tests.
Continuing the preparation for additional _FloatN / _FloatNx type
support, this patch adds support to type-generic strtod tests.
GEN_STRTOD_TEST_FOREACH and STRTOD_TEST_FOREACH are made to handle the
full set of such types.  tst-strtod-round-skeleton.c is updated for
those types it can handle without needing changes to the generator
(i.e. those types that have already-handled formats).

Tested for x86_64.

	* stdlib/tst-strtod.h (F16): New macro.
	(F32): Likewise.
	(F64): Likewise.
	(F32X): Likewise.
	(F64X): Likewise.
	(F128X): Likewise.
	(IF_FLOAT16): Likewise.
	(IF_FLOAT32): Likewise.
	(IF_FLOAT64): Likewise.
	(IF_FLOAT32X): Likewise.
	(IF_FLOAT64X): Likewise.
	(IF_FLOAT128X): Likewise.
	(GEN_TEST_STRTOD_FOREACH): Conditionally call macros for _Float16,
	_Float32, _Float64, _Float32x, _Float64x and _Float128x.
	(STRTOD_TEST_FOREACH): Likewise.
	* stdlib/tst-strtod-round-skeleton.c (CHOOSE_f32): New macro.
	(CHOOSE_f64): Likewise.
	(CHOOSE_f32x): Likewise.
	(CHOOSE_f64x): Likewise.
2017-11-07 18:08:44 +00:00
Andreas Schwab
feda96a178 Remove traces of tst-typesizes 2017-11-07 16:17:18 +01:00
Mike FABIAN
1bd0cbb8cf mfe_MU, miq_NI locales: Escape slashes in d_fmt [BZ #22403]
[BZ #22403]
	* localedata/locales/mfe_MU (LC_TIME): Fix wrong d_fmt, / needs
	to be escaped.
	* localedata/locales/miq_NI (LC_TIME): Fix wrong d_fmt, / needs
	to be escaped.
2017-11-07 15:28:59 +01:00
Claude Paroz
d8301314bc an_ES, kab_DZ, om_ET locales: Escape slashes in d_fmt [BZ #22403]
[BZ #22403]
	* localedata/locales/an_ES (LC_TIME): Fix wrong d_fmt, / needs
	to be escaped.
	* localedata/locales/kab_DZ (LC_TIME): Fix wrong d_fmt, / needs
	to be escaped.
	* localedata/locales/om_ET (LC_TIME): Fix wrong d_fmt, / needs
	to be escaped.
2017-11-07 15:28:59 +01:00
Adhemerval Zanella
06be6368da nptl: Define __PTHREAD_MUTEX_{NUSERS_AFTER_KIND,USE_UNION}
This patch adds two new internal defines to set the internal
pthread_mutex_t layout required by the supported ABIS:

  1. __PTHREAD_MUTEX_NUSERS_AFTER_KIND which control whether to define
     __nusers fields before or after __kind.  The preferred value for
     is 0 for new ports and it sets __nusers before __kind.

  2. __PTHREAD_MUTEX_USE_UNION which control whether internal __spins and
     __list members will be place inside an union for linuxthreads
     compatibility.  The preferred value is 0 for ports and it sets
     to not use an union to define both fields.

It fixes the wrong offsets value for __kind value on x86_64-linux-gnu-x32.
Checked with a make check run-built-tests=no on all afected ABIs.

	[BZ #22298]
	* nptl/allocatestack.c (allocate_stack): Check if
	__PTHREAD_MUTEX_HAVE_PREV is non-zero, instead if
	__PTHREAD_MUTEX_HAVE_PREV is defined.
	* nptl/descr.h (pthread): Likewise.
	* nptl/nptl-init.c (__pthread_initialize_minimal_internal):
	Likewise.
	* nptl/pthread_create.c (START_THREAD_DEFN): Likewise.
	* sysdeps/nptl/fork.c (__libc_fork): Likewise.
	* sysdeps/nptl/pthread.h (PTHREAD_MUTEX_INITIALIZER): Likewise.
	* sysdeps/nptl/bits/thread-shared-types.h
	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION): New
	defines.
	(__pthread_internal_list): Check __PTHREAD_MUTEX_USE_UNION instead
	of __WORDSIZE for internal layout.
	(__pthread_mutex_s): Check __PTHREAD_MUTEX_NUSERS_AFTER_KIND instead
	of __WORDSIZE for internal __nusers layout and __PTHREAD_MUTEX_USE_UNION
	instead of __WORDSIZE whether to use an union for __spins and __list
	fields.
	(__PTHREAD_MUTEX_HAVE_PREV): Define also for __PTHREAD_MUTEX_USE_UNION
	case.
	* sysdeps/aarch64/nptl/bits/pthreadtypes-arch.h
	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION): New
	defines.
	* sysdeps/alpha/nptl/bits/pthreadtypes-arch.h
	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
	Likewise.
	* sysdeps/arm/nptl/bits/pthreadtypes-arch.h
	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
	Likewise.
	* sysdeps/hppa/nptl/bits/pthreadtypes-arch.h
	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
	Likewise.
	* sysdeps/ia64/nptl/bits/pthreadtypes-arch.h
	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
	Likewise.
	* sysdeps/m68k/nptl/bits/pthreadtypes-arch.h
	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
	Likewise.
	* sysdeps/microblaze/nptl/bits/pthreadtypes-arch.h
	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
	Likewise.
	* sysdeps/mips/nptl/bits/pthreadtypes-arch.h
	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
	Likewise.
	* sysdeps/nios2/nptl/bits/pthreadtypes-arch.h
	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
	Likewise.
	* sysdeps/powerpc/nptl/bits/pthreadtypes-arch.h
	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
	Likewise.
	* sysdeps/s390/nptl/bits/pthreadtypes-arch.h
	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
	Likewise.
	* sysdeps/sh/nptl/bits/pthreadtypes-arch.h
	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
	Likewise.
	* sysdeps/sparc/nptl/bits/pthreadtypes-arch.h
	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
	Likewise.
	* sysdeps/tile/nptl/bits/pthreadtypes-arch.h
	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
	Likewise.
	* sysdeps/x86/nptl/bits/pthreadtypes-arch.h
	(__PTHREAD_MUTEX_NUSERS_AFTER_KIND, __PTHREAD_MUTEX_USE_UNION):
	Likewise.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-11-07 09:48:41 -02:00
Adhemerval Zanella
72b3c6eecd nptl: Change tst-typesizes to _Static_assert
Instead of rely on runtime check to assure correct pthread types
size a better strategy would use _Static_assert to trigger an error
on build time (and thus allowing to check to potentially ABI breakage
on cross-compiling make check).

This patch moves nptl/tst-typesizes.c to libpthread build time on
each specific initialization routine and also remove some runtime
redundant asserts for the same type sizes.

Checked on x86_64-linux-gnu and with a build check for all affected
ABIs (aarch64-linux-gnu, alpha-linux-gnu, arm-linux-gnueabihf,
hppa-linux-gnu, i686-linux-gnu, ia64-linux-gnu, m68k-linux-gnu,
microblaze-linux-gnu, mips64-linux-gnu, mips64-n32-linux-gnu,
mips-linux-gnu, powerpc64le-linux-gnu, powerpc-linux-gnu,
s390-linux-gnu, s390x-linux-gnu, sh4-linux-gnu, sparc64-linux-gnu,
sparcv9-linux-gnu, tilegx-linux-gnu, tilegx-linux-gnu-x32,
tilepro-linux-gnu, x86_64-linux-gnu, and x86_64-linux-x32).

	* nptl/pthreadP.h (ASSERT_TYPE_SIZE, ASSERT_PTHREAD_INTERNAL_SIZE):
	New macros.
	* nptl/pthread_attr_init.c (__pthread_mutex_init): Add build time
	checks for expected input type size.
	* nptl/pthread_barrier_init.c (__pthread_barrier_init): Likewise.
	* nptl/pthread_barrierattr_init.c (pthread_barrierattr_init):
	Likewise.
	* nptl/pthread_cond_init.c (__pthread_cond_init): Likewise.
	* nptl/pthread_condattr_init.c (__pthread_condattr_init): Likewise.
	* nptl/pthread_mutex_init.c (__pthread_mutex_init): Likewise.
	* nptl/pthread_mutexattr_init.c (__pthread_mutexattr_init): Likewise.
	* nptl/pthread_rwlock_init.c (__pthread_rwlock_init): Likewise.
	* nptl/pthread_rwlockattr_init.c (pthread_rwlockattr_init): Likewise.
	* nptl/sem_init.c (__new_sem_init, __old_sem_init): Likewise
	* nptl/pthread_attr_destroy.c (__pthread_attr_destroy): Remove
	superflous runtime assert check.
	* nptl/pthread_attr_getaffinity.c (__pthread_attr_getaffinity_new):
	Likewise.
	* nptl/pthread_attr_getdetachstate.c (__pthread_attr_getdetachstate):
	Likewise.
	* nptl/pthread_attr_getguardsize.c (pthread_attr_getguardsize):
	Likewise.
	* nptl/pthread_attr_getinheritsched.c (__pthread_attr_getinheritsched):
	Likewise.
	* nptl/pthread_attr_getschedparam.c (__pthread_attr_getschedparam):
	Likewise.
	* nptl/pthread_attr_getschedpolicy.c (__pthread_attr_getschedpolicy):
	Likewise.
	* nptl/pthread_attr_getscope.c (__pthread_attr_getscope): Likewise.
	* nptl/pthread_attr_getstack.c (__pthread_attr_getstack): Likewise.
	* nptl/pthread_attr_getstackaddr.c (__pthread_attr_getstackaddr):
	Likewise.
	* nptl/pthread_attr_getstacksize.c (__pthread_attr_getstacksize):
	Likewise.
	* nptl/pthread_attr_setaffinity.c (__pthread_attr_setaffinity_new):
	Likewise.
	* nptl/pthread_attr_setdetachstate.c (__pthread_attr_setdetachstate):
	Likewise.
	* nptl/pthread_attr_setguardsize.c (pthread_attr_setguardsize):
	Likewise.
	* nptl/pthread_attr_setinheritsched.c
	(__pthread_attr_setinheritsched): Likewise.
	* nptl/pthread_attr_setschedparam.c (__pthread_attr_setschedparam):
	Likewise.
	* nptl/pthread_attr_setschedpolicy.c (__pthread_attr_setschedpolicy):
	Likewise.
	* nptl/pthread_attr_setscope.c (__pthread_attr_setscope): Likewise.
	* nptl/pthread_attr_setstack.c (__pthread_attr_setstack,
	__old_pthread_attr_setstack): Likewise.
	* nptl/pthread_attr_setstackaddr.c (__pthread_attr_setstackaddr):
	Likewise.
	* nptl/pthread_attr_setstacksize.c (__pthread_attr_setstacksize):
	Likewise.
	* nptl/pthread_getattr_default_np.c (pthread_getattr_default_np):
	Likewise.
	* nptl/pthread_mutex_lock.c (__pthread_mutex_lock): Likewise.
	* nptl/pthread_setattr_default_np.c (pthread_setattr_default_np):
	Likewise.
	* nptl/tst-typesizes.c: Remove file.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-11-07 09:48:37 -02:00
Adhemerval Zanella
dff91cd45e nptl: Add tests for internal pthread_mutex_t offsets
This patch adds a new build test to check for internal fields
offsets for user visible internal field.  Although currently
the only field which is statically initialized to a non zero value
is pthread_mutex_t.__data.__kind value, the tests also check the
offset of __kind, __spins, __elision (if supported), and __list
internal member.  A internal header (pthread-offset.h) is added
to each major ABI with the reference value.

Checked on x86_64-linux-gnu and with a build check for all affected
ABIs (aarch64-linux-gnu, alpha-linux-gnu, arm-linux-gnueabihf,
hppa-linux-gnu, i686-linux-gnu, ia64-linux-gnu, m68k-linux-gnu,
microblaze-linux-gnu, mips64-linux-gnu, mips64-n32-linux-gnu,
mips-linux-gnu, powerpc64le-linux-gnu, powerpc-linux-gnu,
s390-linux-gnu, s390x-linux-gnu, sh4-linux-gnu, sparc64-linux-gnu,
sparcv9-linux-gnu, tilegx-linux-gnu, tilegx-linux-gnu-x32,
tilepro-linux-gnu, x86_64-linux-gnu, and x86_64-linux-x32).

	* nptl/pthreadP.h (ASSERT_PTHREAD_STRING,
	ASSERT_PTHREAD_INTERNAL_OFFSET): New macro.
	* nptl/pthread_mutex_init.c (__pthread_mutex_init): Add build time
	checks for internal pthread_mutex_t offsets.
	* sysdeps/aarch64/nptl/pthread-offsets.h
	(__PTHREAD_MUTEX_NUSERS_OFFSET, __PTHREAD_MUTEX_KIND_OFFSET,
	__PTHREAD_MUTEX_SPINS_OFFSET, __PTHREAD_MUTEX_ELISION_OFFSET,
	__PTHREAD_MUTEX_LIST_OFFSET): New macro.
	* sysdeps/alpha/nptl/pthread-offsets.h: Likewise.
	* sysdeps/arm/nptl/pthread-offsets.h: Likewise.
	* sysdeps/hppa/nptl/pthread-offsets.h: Likewise.
	* sysdeps/i386/nptl/pthread-offsets.h: Likewise.
	* sysdeps/ia64/nptl/pthread-offsets.h: Likewise.
	* sysdeps/m68k/nptl/pthread-offsets.h: Likewise.
	* sysdeps/microblaze/nptl/pthread-offsets.h: Likewise.
	* sysdeps/mips/nptl/pthread-offsets.h: Likewise.
	* sysdeps/nios2/nptl/pthread-offsets.h: Likewise.
	* sysdeps/powerpc/nptl/pthread-offsets.h: Likewise.
	* sysdeps/s390/nptl/pthread-offsets.h: Likewise.
	* sysdeps/sh/nptl/pthread-offsets.h: Likewise.
	* sysdeps/sparc/nptl/pthread-offsets.h: Likewise.
	* sysdeps/tile/nptl/pthread-offsets.h: Likewise.
	* sysdeps/x86_64/nptl/pthread-offsets.h: Likewise.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-11-07 09:48:28 -02:00
Florian Weimer
b7fc95f8c8 Move <bits/mman-linux.h> to the Linux sysdeps directory
The header file is no longer used on anything but Linux.
2017-11-07 12:11:42 +01:00
Rajalakshmi Srinivasaraghavan
6b86036452 powerpc: Use latest optimization for internal function calls
Update strcasestr-power8 to use power8 version of strnlen for
calculating length.

Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
2017-11-07 10:07:48 +05:30
Adhemerval Zanella
d83da3a4ce Optimize sighold implementation
This patch simplifies sighold a bit by removing an extra sigprocmask
and using SIG_BLOCK (which union of the current set and the set argument).

Checked on x86_64-linux-gnu.

	* signal/sighold.c (sighold): Optimize implementation.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Reviewed-by: Zack Weinberg <zackw@panix.com>
2017-11-06 17:37:57 -02:00
Adhemerval Zanella
6a4235f129 Cleanup Linux sigqueue implementation
This patch simplify Linux sigqueue implementation by assuming
__NR_rt_sigqueueinfo existence due minimum kernel requirement
(it pre-dates Linux git inclusion for Linux 2.6.12).

Checked on x86_64-linux-gnu.

	* sysdeps/unix/sysv/linux/sigqueue.c (__sigqueue): Asssume
	__NR_rt_sigqueueinfo.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Reviewed-by: Zack Weinberg <zackw@panix.com>
2017-11-06 17:37:57 -02:00
Adhemerval Zanella
8b0e795aaa Simplify Linux sig{timed}wait{info} implementations
This patch simplifies sig{timed}wait{info} by:

  - Assuming __NR_rt_sigtimedwait existence on all architectures due minimum
    kernel version requirement (it pre-dates Linux git inclusion for Linux
    2.6.12).

  - Call __sigtimedwait on both sigwait and sigwaitinfo.

  - Now that sigwait is based on an internal sigtimedwait call and it is
    present of both libc.so and libpthread.so we need to add an external
    private definition of __sigtimedwait for libpthread.so call.

Checked on x86_64-linux-gnu.

	* sysdeps/unix/sysv/linux/Versions (libc) [GLIBC_PRIVATE]: Add
	__sigtimedwait.
	* sysdeps/unix/sysv/linux/sigtimedwait.c: Simplify includes and
	assume __NR_rt_sigtimedwait.
	* sysdeps/unix/sysv/linux/sigwait.c (__sigwait): Call __sigtimedwait
	and add LIBC_CANCEL_HANDLED for cancellation marking.
	* sysdeps/unix/sysv/linux/sigwaitinfo.c (__sigwaitinfo): Likewise.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Reviewed-by: Zack Weinberg <zackw@panix.com>
2017-11-06 17:37:57 -02:00
Adhemerval Zanella
a1a638dda9 arm: Implement memchr ifunc selection in C
This patch refactor ARM memchr ifunc selector to a C implementation.
No functional change is expected, including ifunc resolution rules.

It also reorganize the ifunc options code:

  1. The memchr_impl.S is renamed to memchr_neon.S and multiple
     compilation options (which route to armv6t2/memchr one) is
     removed.  The code to build if __ARM_NEON__ is defined is
     also simplified.

  2. A memchr_noneon is added (which as build along previous ifunc
     resolution) and includes the armv6t2 direct.

  3. Same as 2. for loader object.

Alongside the aforementioned changes, it also some cleanus:

  - Internal memchr definition (__GI_memcpy) is now a hidden
    symbol.
  - No need to create hidden definition for the ifunc variants.

Checked on armv7-linux-gnueabihf and with a build for arm-linux-gnueabi,
arm-linux-gnueabihf with and without multiarch support and with both
GCC 7.1 and GCC mainline.

	* sysdeps/arm/armv7/multiarch/Makefile [$(subdir) = string]
	(sysdeps_routines): Add memchr_noneon.
	* sysdeps/arm/armv7/multiarch/ifunc-memchr.h: New file.
	* sysdeps/arm/armv7/multiarch/memchr_noneon.S: Likewise.
	* sysdeps/arm/armv7/multiarch/rtld-memchr.S: Likewise.
	* sysdeps/arm/armv7/multiarch/memchr.S: Remove file.
	* sysdeps/arm/armv7/multiarch/memchr.c: New file.
	* sysdeps/arm/armv7/multiarch/memchr_impl.S: Move to ...
	* sysdeps/arm/armv7/multiarch/memchr_neon.S: ... here.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-11-06 17:37:57 -02:00
Adhemerval Zanella
802c1f1645 arm: Implement memcpy ifunc selection in C
This patch refactor ARM memcpy ifunc selector to a C implementation.
No functional change is expected, including ifunc resolution rules.

It also adds some cleanup:

  - Internal memcpy hidden definition (__GI_memcpy) is now a hidden
    symbol.

  - No need to create hidden definition for the ifunc variants.

Checked on armv7-linux-gnueabihf and with a build for arm-linux-gnueabi,
arm-linux-gnueabihf with and without multiarch support and with both
GCC 7.1 and GCC mainline.  I also checked with the some possible
multiarch different configurations that trigger different memcpy
buids (__ARM_NEON__ && !__SOFT_FP__, !__ARM_NEON__ && !__SOFT_FP__, and
!__ARM_NEON__ && __SOFT_FP__).

	* sysdeps/arm/arm-ifunc.h: New file.
	* sysdeps/arm/armv7/multiarch/ifunc-memcpy.h: Likewise.
	* sysdeps/arm/armv7/multiarch/memcpy.c: Likewise.
	* sysdeps/arm/armv7/multiarch/memcpy_arm.S: Likewise.
	* sysdeps/arm/armv7/multiarch/rtld-memcpy.S: Likewise.
	* sysdeps/arm/armv7/multiarch/memcpy_neon.S [!__ARM_NEON__]
	(__memcpy_neon): Avoid create hidden alias.
	* sysdeps/arm/armv7/multiarch/memcpy_vfp.S [!__ARM_NEON_]
	(__memcpy_vfp): Likewise.
	* sysdeps/arm/armv7/multiarch/Makefile [$(subdir) = string]
	(sysdep_routines): Add memcpy_arm.
	* sysdeps/arm/armv7/multiarch/memcpy.S: Remove file.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-11-06 17:37:57 -02:00
H.J. Lu
abcb584d0e Use newly built crt*.o files to build shared objects [BZ #22362]
When multi-lib GCC is used to build glibc, the search order of GCC driver
for crt*.o is -B*/`gcc -print-multi-directory`, the installed diretory,
-B*/.  This patch adds multi-lib support to csu/Makefile so that
-B/glibc-build-directory/csu/ will pick up the newly built crt*.o.

Tested on x86-64 for i686 and x32.

	[BZ #22362]
	* Makerules (make-link-multidir): New.
	* config.make.in (multidir): New.
	* configure.ac (libc_cv_multidir): New.  AC_SUBST.
	* configure: Regenerated.
	* csu/Makefile [$(multidir) != .](multilib-extra-objs): New.
	[$(multidir) != .](extra-objs): Add $(multilib-extra-objs).
	[$(multidir) != .]($(addprefix $(objpfx)$(multidir)/, $(install-lib))):
	New target.
2017-11-06 08:29:57 -08:00
Joseph Myers
4e2dff67be Do not declare _Float128 support for powerpc64le -mlong-double-64 (bug 22402).
The powerpc bits/floatn.h declares _Float128 support to be present
when the compiler supports it for powerpc64le.  However, in the case
where -mlong-double-64 is used, __MATH_TG does not actually support
_Float128; it only supports _Float128 in the distinct-long-double
case.

This shows up as a build failure when building glibc mainline with GCC
mainline, given the recently added sanity check in math.h for
configurations supported by __MATH_TG, as the compat code for
-mlong-double-64 fails to build.  However, the bug was logically
present before that change (including in 2.26), just less visible.

This patch fixes the build failure by declaring _Float128 to be
unsupported in that case.  (Of course this can't actually stop users
calling the type-generic macros with _Float128 arguments with
-mlong-double-64, just as they could be called with other unsupported
types on other platforms, but perhaps makes it less likely by making
all the type-specific _Float128 interfaces invisible in that case.)

Tested compilation for powerpc64le with build-many-glibcs.py.

	[BZ #22402]
	* sysdeps/powerpc/bits/floatn.h: Include <bits/long-double.h>.
	[__NO_LONG_DOUBLE_MATH] (__HAVE_FLOAT128): Define to 0.
2017-11-06 13:26:15 +00:00
Mike FABIAN
a1c7cd3c72 tpi_PG locale: Fix wrong d_fmt 2017-11-04 14:59:29 +01:00
Florian Weimer
b9af29c020 manual: Document the O_TMPFILE flag
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
2017-11-04 00:57:42 +01:00
Joseph Myers
4ca70e1a2b Handle more _FloatN, _FloatNx types in __MATH_TG.
Continuing the preparation for additional _FloatN / _FloatNx type
support, this patch prepares __MATH_TG to handle more such types.

Various unhandled cases, which do not correspond to any current glibc
configuration, have explicit #errors added.  _Float32 and _Float64x
are then handled appropriately in the _Generic case, which is the only
one, other than the cases where use of sizeof is sufficient, where
they should ever be explicit types at the language level instead of
typedefs.  There is no need to handle _Float64 or _Float32x explicitly
there because the default case calling a double function is correct
for those types.

Tested for x86_64.

	* math/math.h [__HAVE_DISTINCT_FLOAT16
	|| __HAVE_DISTINCT_FLOAT32 || __HAVE_DISTINCT_FLOAT64
	|| __HAVE_DISTINCT_FLOAT32X || __HAVE_DISTINCT_FLOAT64X
	|| __HAVE_DISTINCT_FLOAT128X]: Use #error.
	[__NO_LONG_DOUBLE_MATH && __HAVE_DISTINCT_FLOAT128]: Likewise.
	[__HAVE_DISTINCT_FLOAT128 && !__HAVE_GENERIC_SELECTION
	&& __HAVE_FLOATN_NOT_TYPEDEF]: Likewise.
	[__HAVE_DISTINCT_FLOAT128 && __HAVE_GENERIC_SELECTION]
	(__MATH_TG_F32): New macro.
	[__HAVE_DISTINCT_FLOAT128 && __HAVE_GENERIC_SELECTION]
	(__MATH_TG_F64X): Likewise.
	[__HAVE_DISTINCT_FLOAT128 && __HAVE_GENERIC_SELECTION]
	(__MATH_TG): Use __MATH_TG_F32 and __MATH_TG_F64X.
2017-11-03 23:50:00 +00:00
Dmitry V. Levin
ba0e6668f4 Update translations from the Translation Project
* po/de.po: Update translations.
* po/ru.po: Likewise.
2017-11-03 23:30:23 +00:00
Florian Weimer
bc18a6d362 manual: Document the linkat function
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
2017-11-04 00:28:37 +01:00
Joseph Myers
86ec486597 Handle more _FloatN, _FloatNx types in tgmath.h.
Continuing the preparation for additional _FloatN / _FloatNx type
support, this patch improves how <tgmath.h> handles such types.

Use of #error is added for cases of distinct types that are not
supported by the header, to indicate that additional work on the
header would be needed if, for example, _Float16 support were added to
glibc.  Given that #error, types with the same format as other types
are handled automatically by the sizeof-based logic, so the only case
needing special handling is that where _Float64x exists, has the same
format as _Float128, does not have the same format as long double, and
is not a typedef for _Float128.  In this case (which will apply for
powerpc64le once _Float64x support is added to glibc), the
__builtin_types_compatible_p calls testing for _Float128 need
corresponding calls testing for _Float64x, which this patch adds.

Tested for x86_64.

	* math/tgmath.h [__HAVE_DISTINCT_FLOAT16
	|| __HAVE_DISTINCT_FLOAT32 || __HAVE_DISTINCT_FLOAT64
	|| __HAVE_DISTINCT_FLOAT32X || __HAVE_DISTINCT_FLOAT64X
	|| __HAVE_DISTINCT_FLOAT128X]: Use #error.
	[__HAVE_DISTINCT_FLOAT128 && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X && !__HAVE_FLOAT64X_LONG_DOUBLE
	&& __HAVE_FLOATN_NOT_TYPEDEF] (__TGMATH_F128): Handle _Float64x
	the same as _Float128.
	[__HAVE_DISTINCT_FLOAT128 && __GLIBC_USE (IEC_60559_TYPES_EXT)
	&& __HAVE_FLOAT64X && !__HAVE_FLOAT64X_LONG_DOUBLE
	&& __HAVE_FLOATN_NOT_TYPEDEF] (__TGMATH_CF128): Likewise.
2017-11-03 21:11:50 +00:00
Joseph Myers
9725517070 Declare strtof, strfromf functions for more _FloatN, _FloatNx types.
Continuing the preparation for additional _FloatN / _FloatNx type
support, this patch arranges for <stdlib.h> to declare strtof and
strfromf functions for all such types, similarly to the declarations
already present for _Float128.

Tested for x86_64.

	* stdlib/stdlib.h
	[__HAVE_FLOAT16 && __GLIBC_USE (IEC_60559_TYPES_EXT)] (strtof16):
	Declare.
	[__HAVE_FLOAT32 && __GLIBC_USE (IEC_60559_TYPES_EXT)] (strtof32):
	Likewise.
	[__HAVE_FLOAT64 && __GLIBC_USE (IEC_60559_TYPES_EXT)] (strtof64):
	Likewise.
	[__HAVE_FLOAT32X && __GLIBC_USE (IEC_60559_TYPES_EXT)]
	(strtof32x): Likewise.
	[__HAVE_FLOAT64X && __GLIBC_USE (IEC_60559_TYPES_EXT)]
	(strtof64x): Likewise.
	[__HAVE_FLOAT128X && __GLIBC_USE (IEC_60559_TYPES_EXT)]
	(strtof128x): Likewise.
	[__HAVE_FLOAT16 && __GLIBC_USE (IEC_60559_TYPES_EXT)]
	(strfromf16): Likewise.
	[__HAVE_FLOAT32 && __GLIBC_USE (IEC_60559_TYPES_EXT)]
	(strfromf32): Likewise.
	[__HAVE_FLOAT64 && __GLIBC_USE (IEC_60559_TYPES_EXT)]
	(strfromf64): Likewise.
	[__HAVE_FLOAT32X && __GLIBC_USE (IEC_60559_TYPES_EXT)]
	(strfromf32x): Likewise.
	[__HAVE_FLOAT64X && __GLIBC_USE (IEC_60559_TYPES_EXT)]
	(strfromf64x): Likewise.
	[__HAVE_FLOAT128X && __GLIBC_USE (IEC_60559_TYPES_EXT)]
	(strfromf128x): Likewise.
	[__USE_GNU && __HAVE_FLOAT16] (strtof16_l): Likewise.
	[__USE_GNU && __HAVE_FLOAT32] (strtof32_l): Likewise.
	[__USE_GNU && __HAVE_FLOAT64] (strtof64_l): Likewise.
	[__USE_GNU && __HAVE_FLOAT32X] (strtof32x_l): Likewise.
	[__USE_GNU && __HAVE_FLOAT64X] (strtof64x_l): Likewise.
	[__USE_GNU && __HAVE_FLOAT128X] (strtof128x_l): Likewise.
2017-11-03 17:10:39 +00:00
Richard Henderson
6d58ce5e50 aarch64: Guess L1 cache linesize for aarch64
Using the cache hierarchy linesize minimum in CTR_EL0.
See the comment within the code for rationale.

	* sysdeps/unix/sysv/linux/aarch64/sysconf.c: New file.
2017-11-03 16:40:27 +00:00
Szabolcs Nagy
659ca26736 aarch64: optimize _dl_tlsdesc_dynamic fast path
Remove some load/store instructions from the dynamic tlsdesc resolver
fast path.  This gives around 20% faster tls access in dlopened shared
libraries (assuming glibc ran out of static tls space).

	* sysdeps/aarch64/dl-tlsdesc.S (_dl_tlsdesc_dynamic): Optimize.
2017-11-03 14:50:55 +00:00
Szabolcs Nagy
94d2f0af15 arm: Remove lazy tlsdesc initialization related code
Lazy tlsdesc initialization is no longer used in the dynamic linker
so all related code can be removed.

	* sysdeps/arm/dl-machine.h (elf_machine_runtime_setup): Remove
	DT_TLSDESC_GOT initialization.
	* sysdeps/arm/dl-tlsdesc.S (_dl_tlsdesc_lazy_resolver): Remove.
	(_dl_tlsdesc_resolve_hold): Likewise.
	* sysdeps/aarch64/dl-tlsdesc.h (_dl_tlsdesc_lazy_resolver): Remove.
	(_dl_tlsdesc_resolve_hold): Likewise.
	* sysdeps/aarch64/tlsdesc.c (_dl_tlsdesc_lazy_resolver_fixup): Remove.
	(_dl_tlsdesc_resolve_hold_fixup): Likewise.
2017-11-03 14:49:20 +00:00
Szabolcs Nagy
28e1ddf340 arm: Remove unnecessary volatile qualifier
There is no reason to treat tlsdesc entries as volatile objects.

	* sysdeps/arm/dl-machine.h (elf_machine_rel): Remove volatile.
2017-11-03 14:48:35 +00:00
Szabolcs Nagy
0ca3d1d6d0 [BZ #18572] arm: Disable lazy initialization of tlsdesc entries
Follow up to
https://sourceware.org/ml/libc-alpha/2015-11/msg00272.html

Always do tls descriptor initialization at load time during relocation
processing (as if DF_BIND_NOW were set for the binary) to avoid barriers
at every tls access.  This patch mimics bind-now semantics in the lazy
relocation code of the arm target (elf_machine_lazy_rel).

Ideally the static linker should be updated too to not emit tlsdesc
relocs in DT_REL*, so elf_machine_lazy_rel is not called on them at all.

	[BZ #18572]
	* sysdeps/arm/dl-machine.h (elf_machine_lazy_rel): Do symbol binding
	non-lazily for R_ARM_TLS_DESC.
2017-11-03 14:47:35 +00:00
Szabolcs Nagy
2c1d4e5fe4 [BZ #17078] arm: remove prelinker support for R_ARM_TLS_DESC
This patch reverts

commit 9c82da17b5
Author: Maciej W. Rozycki <macro@codesourcery.com>
Date:   2014-07-17 19:22:05 +0100

    [BZ #17078] ARM: R_ARM_TLS_DESC prelinker support

This only implemented support for the lazy binding case (and thus
closed the bugzilla ticket prematurely), however tlsdesc on arm is
not correct with lazy binding because there is a data race between
the lazy initialization code and tlsdesc resolver functions.

Lazy initialization of tlsdesc entries will be removed from arm to
fix the data races and thus this half-finished prelinker support
is no longer useful.

	[BZ #17078]
	* sysdeps/arm/dl-machine.h (elf_machine_rela): Remove the
	R_ARM_TLS_DESC case.
	(elf_machine_lazy_rel): Remove the prelink check.
2017-11-03 14:45:26 +00:00
Szabolcs Nagy
91c5a366d8 aarch64: Remove barriers from TLS descriptor functions
Remove ldar synchronization and most lazy TLSDESC initialization
related code.

	* sysdeps/aarch64/dl-machine.h (elf_machine_runtime_setup): Remove
	DT_TLSDESC_GOT initialization.
	* sysdeps/aarch64/dl-tlsdesc.S (_dl_tlsdesc_return_lazy): Remove.
	(_dl_tlsdesc_resolve_rela): Likewise.
	(_dl_tlsdesc_resolve_hold): Likewise.
	(_dl_tlsdesc_undefweak): Remove ldar.
	(_dl_tlsdesc_dynamic): Likewise.
	* sysdeps/aarch64/dl-tlsdesc.h (_dl_tlsdesc_return_lazy): Remove.
	(_dl_tlsdesc_resolve_rela): Likewise.
	(_dl_tlsdesc_resolve_hold): Likewise.
	* sysdeps/aarch64/tlsdesc.c (_dl_tlsdesc_resolve_rela_fixup): Remove.
	(_dl_tlsdesc_resolve_hold_fixup): Likewise.
	(_dl_tlsdesc_resolve_rela): Likewise.
	(_dl_tlsdesc_resolve_hold): Likewise.
2017-11-03 14:43:32 +00:00
Szabolcs Nagy
b7cf203b5c aarch64: Disable lazy symbol binding of TLSDESC
Always do TLS descriptor initialization at load time during relocation
processing to avoid barriers at every TLS access. In non-dlopened shared
libraries the overhead of tls access vs static global access is > 3x
bigger when lazy initialization is used (_dl_tlsdesc_return_lazy)
compared to bind-now (_dl_tlsdesc_return) so the barriers dominate tls
access performance.

TLSDESC relocs are in DT_JMPREL which are processed at load time using
elf_machine_lazy_rel which is only supposed to do lightweight
initialization using the DT_TLSDESC_PLT trampoline (the trampoline code
jumps to the entry point in DT_TLSDESC_GOT which does the lazy tlsdesc
initialization at runtime).  This patch changes elf_machine_lazy_rel
in aarch64 to do the symbol binding and initialization as if DF_BIND_NOW
was set, so the non-lazy code path of elf/do-rel.h was replicated.

The static linker could be changed to emit TLSDESC relocs in DT_REL*,
which are processed non-lazily, but the goal of this patch is to always
guarantee bind-now semantics, even if the binary was produced with an
old linker, so the barriers can be dropped in tls descriptor functions.

After this change the synchronizing ldar instructions can be dropped
as well as the lazy initialization machinery including the DT_TLSDESC_GOT
setup.

I believe this should be done on all targets, including ones where no
barrier is needed for lazy initialization.  There is very little gain in
optimizing for large number of symbolic tlsdesc relocations which is an
extremely uncommon case.  And currently the tlsdesc entries are only
readonly protected with -z now and some hardennings against writable
JUMPSLOT relocs don't work for TLSDESC so they are a security hazard.
(But to fix that the static linker has to be changed.)

	* sysdeps/aarch64/dl-machine.h (elf_machine_lazy_rel): Do symbol
	binding and initialization non-lazily for R_AARCH64_TLSDESC.
2017-11-03 14:41:35 +00:00
Szabolcs Nagy
0cc5b022f8 Mark lazy tlsdesc helper functions unused to avoid warnings
These static functions are not needed if a target does not do lazy
tlsdesc initialization.

	* elf/tlsdeschtab.h (_dl_tls_resolve_early_return_p): Mark unused.
	(_dl_tlsdesc_wake_up_held_fixups): Likewise.
2017-11-03 14:40:28 +00:00
Joseph Myers
43ddff2e36 Declare wcstof functions for more _FloatN, _FloatNx types.
Continuing the preparation for additional _FloatN / _FloatNx type
support, this patch arranges for <wchar.h> to declare wcstof functions
for all such types, similarly to the declarations already present for
_Float128.

Tested for x86_64.

	* wcsmbs/wchar.h [__HAVE_FLOAT16 && __USE_GNU] (wcstof16):
	Declare.
	[__HAVE_FLOAT32 && __USE_GNU] (wcstof32): Likewise.
	[__HAVE_FLOAT64 && __USE_GNU] (wcstof64): Likewise.
	[__HAVE_FLOAT32X && __USE_GNU] (wcstof32x): Likewise.
	[__HAVE_FLOAT64X && __USE_GNU] (wcstof64x): Likewise.
	[__HAVE_FLOAT128X && __USE_GNU] (wcstof128x): Likewise.
	[__HAVE_FLOAT16 && __USE_GNU] (wcstof16_l): Likewise.
	[__HAVE_FLOAT32 && __USE_GNU] (wcstof32_l): Likewise.
	[__HAVE_FLOAT64 && __USE_GNU] (wcstof64_l): Likewise.
	[__HAVE_FLOAT32X && __USE_GNU] (wcstof32x_l): Likewise.
	[__HAVE_FLOAT64X && __USE_GNU] (wcstof64x_l): Likewise.
	[__HAVE_FLOAT128X && __USE_GNU] (wcstof128x_l): Likewise.
2017-11-02 23:36:00 +00:00