glibc/stdlib/Versions

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Move some float128 symbol version definitions. With support for _Float128 functions on platforms where that type has the same ABI as long double, as well as on platforms where it is ABI-distinct, those functions will need to be exported from glibc's shared libraries at appropriate symbol versions in each case. This patch avoids duplication of lists of symbols to export by moving the symbols other than __* to math/Versions and stdlib/Versions. There, they are conditional on <float128-abi.h> defining FLOAT128_VERSION and a default version of that header is added that does not define that macro. Enabling the float128 function aliases will then include adding a sysdeps/ieee754/ldbl-128/float128-abi.h that defines FLOAT128_VERSION to GLIBC_2.27. Symbols __* remain in sysdeps/ieee754/float128/Versions; those symbols should be present only once per floating-point format, not once per type. Note that if any platforms currently lacking support for a type with binary128 format get glibc support for such a type in future (whether only as _Float128, or also as a new long double format), and new libm functions (present for all types) have been added by then, additional macros will be needed to allow such functions to get a version of the form "GLIBC_2.28 if the platform had _Float128 support by then, or the later version at which that platform had _Float128 support added". This is not however a preexisting condition, but would have applied equally to the existing support for _Float128 as an ABI-distinct type. New all-type libm functions should just be added to the appropriate symbol version (currently GLIBC_2.27) for all types, with such special-case handling for _Float128 versions (and _Float64x as well in future) waiting until someone actually wants to add support for _Float128 to an existing platform after a release in which that platform and a post-2.26 libm function had support but that platform lacked _Float128 support. Tested with build-many-glibcs.py that installed stripped shared libraries are unchanged by this patch. Also tested in conjunction with the remaining changes to enable float128 aliases. * sysdeps/generic/float128-abi.h: New file. * sysdeps/ieee754/float128/Versions (FLOAT128_VERSION): Move non-__prefixed symbols to .... * math/Versions: ... here. Include <float128-abi.h>. * stdlib/Versions ... and here. Include <float128-abi.h>
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%include <float128-abi.h>
Update. 1998-07-02 21:51 Ulrich Drepper <drepper@cygnus.com> * Makeconfig: Define list of subdirs as all-subdirs and make subdirs a copy. * Makefile: Add rules to generate map files. (distribute): Remove libc.map, add Versions.def and versions.awk. * Makerules: Change rules to find map files on common-objpfx. * elf/Makefile: Likewise. * md5-crypt/Makefile: Likewise. * nis/Makefile (libnsl-map): Remove. * Versions.def: New file. * versions.awk: New file. * argp/Versions: New file. * assert/Versions: New file. * catgets/Versions: New file. * csu/Versions: New file. * ctype/Versions: New file. * db/Versions: New file. * debug/Versions: New file. * dirent/Versions: New file. * elf/Versions: New file. * gmon/Versions: New file. * grp/Versions: New file. * hesiod/Versions: New file. * hurd/Versions: New file. * iconv/Versions: New file. * inet/Versions: New file. * intl/Versions: New file. * io/Versions: New file. * libio/Versions: New file. * linuxthreads/Versions: New file. * locale/Versions: New file. * login/Versions: New file. * malloc/Versions: New file. * math/Versions: New file. * md5-crypt/Versions: New file. * misc/Versions: New file. * nis/Versions: New file. * nss/Versions: New file. * posix/Versions: New file. * pwd/Versions: New file. * resolv/Versions: New file. * resource/Versions: New file. * rt/Versions: New file. * setjmp/Versions: New file. * shadow/Versions: New file. * signal/Versions: New file. * socket/Versions: New file. * stdio/Versions: New file. * stdio-common/Versions: New file. * stdlib/Versions: New file. * streams/Versions: New file. * string/Versions: New file. * sunrpc/Versions: New file. * sysdeps/alpha/Versions: New file. * sysdeps/alpha/fpu/Versions: New file. * sysdeps/i386/Versions: New file. * sysdeps/sparc/Versions: New file. * sysdeps/unix/sysv/Versions: New file. * sysdeps/unix/sysv/linux/Versions: New file. * sysdeps/unix/sysv/linux/alpha/Versions: New file. * sysdeps/unix/sysv/linux/i386/Versions: New file. * sysdeps/unix/sysv/linux/mips/Versions: New file. * sysvipc/Versions: New file. * termios/Versions: New file. * time/Versions: New file. * wcsmbs/Versions: New file. * wctype/Versions: New file. * libc.map: Removed. * db/libdb.map: Removed. * elf/libdl.map: Removed. * hesiod/libnss_hesiod.map: Removed. * hurd/libhurduser.map: Removed. * hurd/libmachuser.map: Removed. * linuxthreads/libpthread.map: Removed. * locale/libBrokenLocale.map: Removed. * login/libutil.map: Removed. * math/libm.map: Removed. * md5-crypt/libcrypt.map: Removed. * nis/libnsl.map: Removed. * nis/libnsl_compat.map: Removed. * nis/libnss_nis.map: Removed. * nis/libnss_nisplus.map: Removed. * nss/libnss_db.map: Removed. * nss/libnss_files.map: Removed. * resolv/libnss_dns.map: Removed. * resolv/libresolv.map: Removed. * rt/librt.map: Removed. * elf/dl-load.c (fillin_rpath): Fix test for trusted directory. Fix typos. * elf/rtld.c (process_dl_debug): Recognize 'all'. (process_envvars): LD_BIND_NOW must be followed by y, Y, or 1. * sysdeps/generic/elf/backtracesyms.c: Allocate string memory of correct size. * sysdeps/unix/sysv/linux/getsysstats.c (get_proc_path): Fix typo in comment.
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libc {
GLIBC_2.0 {
# functions with required interface outside normal name space
__xpg_basename;
# functions used in inline functions or macros
__strtod_internal; __strtof_internal; __strtold_internal;
__strtol_internal; __strtoll_internal;
__strtoul_internal; __strtoull_internal;
# functions formerly so used (compatibility symbols)
__strtoq_internal; __strtouq_internal;
Update. 1998-07-02 21:51 Ulrich Drepper <drepper@cygnus.com> * Makeconfig: Define list of subdirs as all-subdirs and make subdirs a copy. * Makefile: Add rules to generate map files. (distribute): Remove libc.map, add Versions.def and versions.awk. * Makerules: Change rules to find map files on common-objpfx. * elf/Makefile: Likewise. * md5-crypt/Makefile: Likewise. * nis/Makefile (libnsl-map): Remove. * Versions.def: New file. * versions.awk: New file. * argp/Versions: New file. * assert/Versions: New file. * catgets/Versions: New file. * csu/Versions: New file. * ctype/Versions: New file. * db/Versions: New file. * debug/Versions: New file. * dirent/Versions: New file. * elf/Versions: New file. * gmon/Versions: New file. * grp/Versions: New file. * hesiod/Versions: New file. * hurd/Versions: New file. * iconv/Versions: New file. * inet/Versions: New file. * intl/Versions: New file. * io/Versions: New file. * libio/Versions: New file. * linuxthreads/Versions: New file. * locale/Versions: New file. * login/Versions: New file. * malloc/Versions: New file. * math/Versions: New file. * md5-crypt/Versions: New file. * misc/Versions: New file. * nis/Versions: New file. * nss/Versions: New file. * posix/Versions: New file. * pwd/Versions: New file. * resolv/Versions: New file. * resource/Versions: New file. * rt/Versions: New file. * setjmp/Versions: New file. * shadow/Versions: New file. * signal/Versions: New file. * socket/Versions: New file. * stdio/Versions: New file. * stdio-common/Versions: New file. * stdlib/Versions: New file. * streams/Versions: New file. * string/Versions: New file. * sunrpc/Versions: New file. * sysdeps/alpha/Versions: New file. * sysdeps/alpha/fpu/Versions: New file. * sysdeps/i386/Versions: New file. * sysdeps/sparc/Versions: New file. * sysdeps/unix/sysv/Versions: New file. * sysdeps/unix/sysv/linux/Versions: New file. * sysdeps/unix/sysv/linux/alpha/Versions: New file. * sysdeps/unix/sysv/linux/i386/Versions: New file. * sysdeps/unix/sysv/linux/mips/Versions: New file. * sysvipc/Versions: New file. * termios/Versions: New file. * time/Versions: New file. * wcsmbs/Versions: New file. * wctype/Versions: New file. * libc.map: Removed. * db/libdb.map: Removed. * elf/libdl.map: Removed. * hesiod/libnss_hesiod.map: Removed. * hurd/libhurduser.map: Removed. * hurd/libmachuser.map: Removed. * linuxthreads/libpthread.map: Removed. * locale/libBrokenLocale.map: Removed. * login/libutil.map: Removed. * math/libm.map: Removed. * md5-crypt/libcrypt.map: Removed. * nis/libnsl.map: Removed. * nis/libnsl_compat.map: Removed. * nis/libnss_nis.map: Removed. * nis/libnss_nisplus.map: Removed. * nss/libnss_db.map: Removed. * nss/libnss_files.map: Removed. * resolv/libnss_dns.map: Removed. * resolv/libresolv.map: Removed. * rt/librt.map: Removed. * elf/dl-load.c (fillin_rpath): Fix test for trusted directory. Fix typos. * elf/rtld.c (process_dl_debug): Recognize 'all'. (process_envvars): LD_BIND_NOW must be followed by y, Y, or 1. * sysdeps/generic/elf/backtracesyms.c: Allocate string memory of correct size. * sysdeps/unix/sysv/linux/getsysstats.c (get_proc_path): Fix typo in comment.
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# compatibility symbol
__secure_getenv;
Update. 1998-07-02 21:51 Ulrich Drepper <drepper@cygnus.com> * Makeconfig: Define list of subdirs as all-subdirs and make subdirs a copy. * Makefile: Add rules to generate map files. (distribute): Remove libc.map, add Versions.def and versions.awk. * Makerules: Change rules to find map files on common-objpfx. * elf/Makefile: Likewise. * md5-crypt/Makefile: Likewise. * nis/Makefile (libnsl-map): Remove. * Versions.def: New file. * versions.awk: New file. * argp/Versions: New file. * assert/Versions: New file. * catgets/Versions: New file. * csu/Versions: New file. * ctype/Versions: New file. * db/Versions: New file. * debug/Versions: New file. * dirent/Versions: New file. * elf/Versions: New file. * gmon/Versions: New file. * grp/Versions: New file. * hesiod/Versions: New file. * hurd/Versions: New file. * iconv/Versions: New file. * inet/Versions: New file. * intl/Versions: New file. * io/Versions: New file. * libio/Versions: New file. * linuxthreads/Versions: New file. * locale/Versions: New file. * login/Versions: New file. * malloc/Versions: New file. * math/Versions: New file. * md5-crypt/Versions: New file. * misc/Versions: New file. * nis/Versions: New file. * nss/Versions: New file. * posix/Versions: New file. * pwd/Versions: New file. * resolv/Versions: New file. * resource/Versions: New file. * rt/Versions: New file. * setjmp/Versions: New file. * shadow/Versions: New file. * signal/Versions: New file. * socket/Versions: New file. * stdio/Versions: New file. * stdio-common/Versions: New file. * stdlib/Versions: New file. * streams/Versions: New file. * string/Versions: New file. * sunrpc/Versions: New file. * sysdeps/alpha/Versions: New file. * sysdeps/alpha/fpu/Versions: New file. * sysdeps/i386/Versions: New file. * sysdeps/sparc/Versions: New file. * sysdeps/unix/sysv/Versions: New file. * sysdeps/unix/sysv/linux/Versions: New file. * sysdeps/unix/sysv/linux/alpha/Versions: New file. * sysdeps/unix/sysv/linux/i386/Versions: New file. * sysdeps/unix/sysv/linux/mips/Versions: New file. * sysvipc/Versions: New file. * termios/Versions: New file. * time/Versions: New file. * wcsmbs/Versions: New file. * wctype/Versions: New file. * libc.map: Removed. * db/libdb.map: Removed. * elf/libdl.map: Removed. * hesiod/libnss_hesiod.map: Removed. * hurd/libhurduser.map: Removed. * hurd/libmachuser.map: Removed. * linuxthreads/libpthread.map: Removed. * locale/libBrokenLocale.map: Removed. * login/libutil.map: Removed. * math/libm.map: Removed. * md5-crypt/libcrypt.map: Removed. * nis/libnsl.map: Removed. * nis/libnsl_compat.map: Removed. * nis/libnss_nis.map: Removed. * nis/libnss_nisplus.map: Removed. * nss/libnss_db.map: Removed. * nss/libnss_files.map: Removed. * resolv/libnss_dns.map: Removed. * resolv/libresolv.map: Removed. * rt/librt.map: Removed. * elf/dl-load.c (fillin_rpath): Fix test for trusted directory. Fix typos. * elf/rtld.c (process_dl_debug): Recognize 'all'. (process_envvars): LD_BIND_NOW must be followed by y, Y, or 1. * sysdeps/generic/elf/backtracesyms.c: Allocate string memory of correct size. * sysdeps/unix/sysv/linux/getsysstats.c (get_proc_path): Fix typo in comment.
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# a*
a64l; abort; abs; atexit; atof; atoi; atol; atoll;
# b*
bsearch;
# c*
canonicalize_file_name; clearenv;
# d*
div; drand48; drand48_r;
# e*
erand48; erand48_r; exit;
# g*
getenv; getsubopt;
# i*
initstate; initstate_r;
# l*
l64a; labs; lcong48; lcong48_r; ldiv; llabs; lldiv; lrand48; lrand48_r;
# m*
mblen; mbrlen; mbrtowc; mbsinit; mbsnrtowcs; mbsrtowcs; mbstowcs;
mbtowc; mcount; mrand48; mrand48_r;
Update. 1998-07-02 21:51 Ulrich Drepper <drepper@cygnus.com> * Makeconfig: Define list of subdirs as all-subdirs and make subdirs a copy. * Makefile: Add rules to generate map files. (distribute): Remove libc.map, add Versions.def and versions.awk. * Makerules: Change rules to find map files on common-objpfx. * elf/Makefile: Likewise. * md5-crypt/Makefile: Likewise. * nis/Makefile (libnsl-map): Remove. * Versions.def: New file. * versions.awk: New file. * argp/Versions: New file. * assert/Versions: New file. * catgets/Versions: New file. * csu/Versions: New file. * ctype/Versions: New file. * db/Versions: New file. * debug/Versions: New file. * dirent/Versions: New file. * elf/Versions: New file. * gmon/Versions: New file. * grp/Versions: New file. * hesiod/Versions: New file. * hurd/Versions: New file. * iconv/Versions: New file. * inet/Versions: New file. * intl/Versions: New file. * io/Versions: New file. * libio/Versions: New file. * linuxthreads/Versions: New file. * locale/Versions: New file. * login/Versions: New file. * malloc/Versions: New file. * math/Versions: New file. * md5-crypt/Versions: New file. * misc/Versions: New file. * nis/Versions: New file. * nss/Versions: New file. * posix/Versions: New file. * pwd/Versions: New file. * resolv/Versions: New file. * resource/Versions: New file. * rt/Versions: New file. * setjmp/Versions: New file. * shadow/Versions: New file. * signal/Versions: New file. * socket/Versions: New file. * stdio/Versions: New file. * stdio-common/Versions: New file. * stdlib/Versions: New file. * streams/Versions: New file. * string/Versions: New file. * sunrpc/Versions: New file. * sysdeps/alpha/Versions: New file. * sysdeps/alpha/fpu/Versions: New file. * sysdeps/i386/Versions: New file. * sysdeps/sparc/Versions: New file. * sysdeps/unix/sysv/Versions: New file. * sysdeps/unix/sysv/linux/Versions: New file. * sysdeps/unix/sysv/linux/alpha/Versions: New file. * sysdeps/unix/sysv/linux/i386/Versions: New file. * sysdeps/unix/sysv/linux/mips/Versions: New file. * sysvipc/Versions: New file. * termios/Versions: New file. * time/Versions: New file. * wcsmbs/Versions: New file. * wctype/Versions: New file. * libc.map: Removed. * db/libdb.map: Removed. * elf/libdl.map: Removed. * hesiod/libnss_hesiod.map: Removed. * hurd/libhurduser.map: Removed. * hurd/libmachuser.map: Removed. * linuxthreads/libpthread.map: Removed. * locale/libBrokenLocale.map: Removed. * login/libutil.map: Removed. * math/libm.map: Removed. * md5-crypt/libcrypt.map: Removed. * nis/libnsl.map: Removed. * nis/libnsl_compat.map: Removed. * nis/libnss_nis.map: Removed. * nis/libnss_nisplus.map: Removed. * nss/libnss_db.map: Removed. * nss/libnss_files.map: Removed. * resolv/libnss_dns.map: Removed. * resolv/libresolv.map: Removed. * rt/librt.map: Removed. * elf/dl-load.c (fillin_rpath): Fix test for trusted directory. Fix typos. * elf/rtld.c (process_dl_debug): Recognize 'all'. (process_envvars): LD_BIND_NOW must be followed by y, Y, or 1. * sysdeps/generic/elf/backtracesyms.c: Allocate string memory of correct size. * sysdeps/unix/sysv/linux/getsysstats.c (get_proc_path): Fix typo in comment.
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# n*
nrand48; nrand48_r;
# o*
on_exit;
# p*
putenv;
# q*
qsort;
# r*
rand; rand_r; random; random_r; realpath; rpmatch;
# s*
seed48; seed48_r; setcontext; setenv; setstate; setstate_r; srand; srand48;
srand48_r; srandom; srandom_r; step; strfmon; strtod; strtof; strtol;
strtold; strtoll; strtoq; strtoul; strtoull; strtouq; system;
# u*
unsetenv;
# w*
wcstombs; wctomb;
}
GLIBC_2.1 {
# a*
addseverity;
# f*
fmtmsg;
# g*
getcontext;
# m*
makecontext;
# s*
strtoimax; strtoumax; swapcontext;
}
GLIBC_2.1.1 {
# _*
_Exit;
# i*
imaxabs; imaxdiv;
}
GLIBC_2.1.3 {
# used by new G++ ABI
__cxa_atexit; __cxa_finalize;
}
GLIBC_2.3 {
# Silent change in SUS.
realpath;
}
GLIBC_2.8 {
qsort_r;
}
GLIBC_2.10 {
quick_exit; __cxa_at_quick_exit;
}
GLIBC_2.17 {
secure_getenv;
}
GLIBC_2.18 {
__cxa_thread_atexit_impl;
}
GLIBC_2.24 {
quick_exit;
}
GLIBC_2.25 {
# s*
strfromd; strfromf; strfroml;
getrandom; getentropy;
}
Move some float128 symbol version definitions. With support for _Float128 functions on platforms where that type has the same ABI as long double, as well as on platforms where it is ABI-distinct, those functions will need to be exported from glibc's shared libraries at appropriate symbol versions in each case. This patch avoids duplication of lists of symbols to export by moving the symbols other than __* to math/Versions and stdlib/Versions. There, they are conditional on <float128-abi.h> defining FLOAT128_VERSION and a default version of that header is added that does not define that macro. Enabling the float128 function aliases will then include adding a sysdeps/ieee754/ldbl-128/float128-abi.h that defines FLOAT128_VERSION to GLIBC_2.27. Symbols __* remain in sysdeps/ieee754/float128/Versions; those symbols should be present only once per floating-point format, not once per type. Note that if any platforms currently lacking support for a type with binary128 format get glibc support for such a type in future (whether only as _Float128, or also as a new long double format), and new libm functions (present for all types) have been added by then, additional macros will be needed to allow such functions to get a version of the form "GLIBC_2.28 if the platform had _Float128 support by then, or the later version at which that platform had _Float128 support added". This is not however a preexisting condition, but would have applied equally to the existing support for _Float128 as an ABI-distinct type. New all-type libm functions should just be added to the appropriate symbol version (currently GLIBC_2.27) for all types, with such special-case handling for _Float128 versions (and _Float64x as well in future) waiting until someone actually wants to add support for _Float128 to an existing platform after a release in which that platform and a post-2.26 libm function had support but that platform lacked _Float128 support. Tested with build-many-glibcs.py that installed stripped shared libraries are unchanged by this patch. Also tested in conjunction with the remaining changes to enable float128 aliases. * sysdeps/generic/float128-abi.h: New file. * sysdeps/ieee754/float128/Versions (FLOAT128_VERSION): Move non-__prefixed symbols to .... * math/Versions: ... here. Include <float128-abi.h>. * stdlib/Versions ... and here. Include <float128-abi.h>
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%ifdef FLOAT128_VERSION
FLOAT128_VERSION {
strfromf128;
strtof128;
strtof128_l;
}
%endif
Add _Float64x function aliases. This patch continues filling out TS 18661-3 support by adding *f64x function aliases on platforms with _Float64x support. (It so happens the set of such platforms is exactly the same as the set of platforms with _Float128 support, although on x86_64, x86 and ia32 the _Float64x format is Intel extended rather than binary128.) The API provided corresponds exactly to that provided for _Float128, mostly coming from TS 18661-3. As these functions always alias those for another type (long double, _Float128 or both), __* function names are not provided, as in other cases of alias types. Given the preparation done in previous patches, this one just enables the feature via Makeconfig and bits/floatn.h, adds symbol versions, and updates documentation and ABI baselines. The symbol versions are present unconditionally as GLIBC_2.27 in the relevant Versions files, as it's OK for those to specify versions for functions that may not be present in some configurations; no additional complexity is needed unless in future some configuration gains support for this type that didn't have such support in 2.27. The Makeconfig additions for ia64 and x86 aren't strictly needed, as those configurations also get float64x-alias-fcts definitions from sysdeps/ieee754/float128/Makeconfig, but still seem appropriate given that _Float64x is not _Float128 for those configurations. A libm-test-ulps update for x86 is included. This is because bits/mathinline.h does not have _Float64x support added and for two functions the use of out-of-line functions results in increased ulps (ifloat64x shares ulps with ildouble / ifloat128 as appropriate). Given that we'd like generally to eliminate bits/mathinline.h optimizations, preferring to have such optimizations in GCC instead, it seems reasonable not to add such support there for new types. GCC support for _FloatN / _FloatNx built-in functions is limited, but has been improved in GCC 8, and at some point I hope the full set of libm built-in functions in GCC, and other optimizations with per-floating-type aspects, will be enabled for all _FloatN / _FloatNx types. Tested for x86_64 and x86, and with build-many-glibcs.py, with both GCC 6 and GCC 7. * sysdeps/ia64/Makeconfig (float64x-alias-fcts): New variable. * sysdeps/ieee754/float128/Makeconfig (float64x-alias-fcts): Likewise. * sysdeps/ieee754/ldbl-128/Makeconfig (float64x-alias-fcts): Likewise. * sysdeps/x86/Makeconfig: New file. * bits/floatn-common.h (__HAVE_FLOAT64X): Remove macro. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * bits/floatn.h (__HAVE_FLOAT64X): New macro. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * sysdeps/ia64/bits/floatn.h (__HAVE_FLOAT64X): Likewise. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * sysdeps/ieee754/ldbl-128/bits/floatn.h (__HAVE_FLOAT64X): Likewise. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * sysdeps/mips/ieee754/bits/floatn.h (__HAVE_FLOAT64X): Likewise. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * sysdeps/powerpc/bits/floatn.h (__HAVE_FLOAT64X): Likewise. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * sysdeps/x86/bits/floatn.h (__HAVE_FLOAT64X): Likewise. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * manual/math.texi (Mathematics): Document support for _Float64x. * math/Versions (GLIBC_2.27): Add _Float64x functions. * stdlib/Versions (GLIBC_2.27): Likewise. * wcsmbs/Versions (GLIBC_2.27): Likewise. * sysdeps/unix/sysv/linux/aarch64/libc.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise. * sysdeps/i386/fpu/libm-test-ulps: Likewise. * sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise.
2017-11-27 14:16:47 +00:00
GLIBC_2.27 {
Add _Float64, _Float32x function aliases. This patch continues filling out TS 18661-3 support by adding *f64 and *f32x function aliases, supporting _Float64 and _Float32x, as aliases for double functions. These types are supported for all glibc configurations. The API corresponds exactly to that for _Float128 and _Float64x. _Float32 aliases to float functions remain to be added in subsequent patches to complete this process (then there are a few miscellaneous functions in TS 18661-3 to implement that aren't simply versions of existing functions for new types). The patch enables the feature in bits/floatn-common.h, adds symbol versions and documentation with updates to ABI baselines, and arranges for the libm functions for the new types to be tested. As with the _Float64x changes there are some x86 ulps updates because of header inlines not used for the new types (and one other change to the non-multiarch libm-test-ulps, which I suppose comes from using a different compiler version / configuration from when it was last regenerated). Tested for x86_64 and x86, and with build-many-glibcs.py, with both GCC 6 and GCC 7. * bits/floatn-common.h (__HAVE_FLOAT64): Define to 1. (__HAVE_FLOAT32X): Likewise. * manual/math.texi (Mathematics): Document support for _Float64 and _Float32x. * math/Makefile (test-types): Add float64 and float32x. * math/Versions (GLIBC_2.27): Add _Float64 and _Float32x functions. * stdlib/Versions (GLIBC_2.27): Likewise. * wcsmbs/Versions (GLIBC_2.27): Likewise. * sysdeps/unix/sysv/linux/aarch64/libc.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilepro/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise. * sysdeps/i386/fpu/libm-test-ulps: Likewise. * sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise.
2017-12-06 00:58:03 +00:00
# _Float64x functions, only present for some configurations.
Add _Float64x function aliases. This patch continues filling out TS 18661-3 support by adding *f64x function aliases on platforms with _Float64x support. (It so happens the set of such platforms is exactly the same as the set of platforms with _Float128 support, although on x86_64, x86 and ia32 the _Float64x format is Intel extended rather than binary128.) The API provided corresponds exactly to that provided for _Float128, mostly coming from TS 18661-3. As these functions always alias those for another type (long double, _Float128 or both), __* function names are not provided, as in other cases of alias types. Given the preparation done in previous patches, this one just enables the feature via Makeconfig and bits/floatn.h, adds symbol versions, and updates documentation and ABI baselines. The symbol versions are present unconditionally as GLIBC_2.27 in the relevant Versions files, as it's OK for those to specify versions for functions that may not be present in some configurations; no additional complexity is needed unless in future some configuration gains support for this type that didn't have such support in 2.27. The Makeconfig additions for ia64 and x86 aren't strictly needed, as those configurations also get float64x-alias-fcts definitions from sysdeps/ieee754/float128/Makeconfig, but still seem appropriate given that _Float64x is not _Float128 for those configurations. A libm-test-ulps update for x86 is included. This is because bits/mathinline.h does not have _Float64x support added and for two functions the use of out-of-line functions results in increased ulps (ifloat64x shares ulps with ildouble / ifloat128 as appropriate). Given that we'd like generally to eliminate bits/mathinline.h optimizations, preferring to have such optimizations in GCC instead, it seems reasonable not to add such support there for new types. GCC support for _FloatN / _FloatNx built-in functions is limited, but has been improved in GCC 8, and at some point I hope the full set of libm built-in functions in GCC, and other optimizations with per-floating-type aspects, will be enabled for all _FloatN / _FloatNx types. Tested for x86_64 and x86, and with build-many-glibcs.py, with both GCC 6 and GCC 7. * sysdeps/ia64/Makeconfig (float64x-alias-fcts): New variable. * sysdeps/ieee754/float128/Makeconfig (float64x-alias-fcts): Likewise. * sysdeps/ieee754/ldbl-128/Makeconfig (float64x-alias-fcts): Likewise. * sysdeps/x86/Makeconfig: New file. * bits/floatn-common.h (__HAVE_FLOAT64X): Remove macro. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * bits/floatn.h (__HAVE_FLOAT64X): New macro. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * sysdeps/ia64/bits/floatn.h (__HAVE_FLOAT64X): Likewise. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * sysdeps/ieee754/ldbl-128/bits/floatn.h (__HAVE_FLOAT64X): Likewise. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * sysdeps/mips/ieee754/bits/floatn.h (__HAVE_FLOAT64X): Likewise. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * sysdeps/powerpc/bits/floatn.h (__HAVE_FLOAT64X): Likewise. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * sysdeps/x86/bits/floatn.h (__HAVE_FLOAT64X): Likewise. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * manual/math.texi (Mathematics): Document support for _Float64x. * math/Versions (GLIBC_2.27): Add _Float64x functions. * stdlib/Versions (GLIBC_2.27): Likewise. * wcsmbs/Versions (GLIBC_2.27): Likewise. * sysdeps/unix/sysv/linux/aarch64/libc.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise. * sysdeps/i386/fpu/libm-test-ulps: Likewise. * sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise.
2017-11-27 14:16:47 +00:00
strfromf64x;
strtof64x;
strtof64x_l;
Add _Float32 function aliases. This patch concludes filling out TS 18661-3 support for different types by adding *f32 function aliases of float functions to support _Float32. As with _Float64 and _Float32x, this is supported for all glibc configurations. As with the previous such patches there are some x86 ulps updates because of inline functions present for float but not for _Float32. The patch also has the usual bits/floatn-common.h update, symbol versions, ABI baselines updates, test enablement and documentation. Tested for x86_64 and x86, and with build-many-glibcs.py, with both GCC 6 and GCC 7. * bits/floatn-common.h (__HAVE_FLOAT32): Define to 1. * manual/math.texi (Mathematics): Document support for _Float32. * math/Makefile (test-types): Add float32. * math/Versions (GLIBC_2.27): Add _Float32 functions. * stdlib/Versions (GLIBC_2.27): Likewise. * wcsmbs/Versions (GLIBC_2.27): Likewise. * sysdeps/unix/sysv/linux/aarch64/libc.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilepro/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise. * sysdeps/i386/fpu/libm-test-ulps: Likewise. * sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise.
2017-12-07 00:48:31 +00:00
# _Float32, _Float64 and _Float32x functions, for all configurations.
strfromf32; strfromf64; strfromf32x;
strtof32; strtof64; strtof32x;
strtof32_l; strtof64_l; strtof32x_l;
Add _Float64x function aliases. This patch continues filling out TS 18661-3 support by adding *f64x function aliases on platforms with _Float64x support. (It so happens the set of such platforms is exactly the same as the set of platforms with _Float128 support, although on x86_64, x86 and ia32 the _Float64x format is Intel extended rather than binary128.) The API provided corresponds exactly to that provided for _Float128, mostly coming from TS 18661-3. As these functions always alias those for another type (long double, _Float128 or both), __* function names are not provided, as in other cases of alias types. Given the preparation done in previous patches, this one just enables the feature via Makeconfig and bits/floatn.h, adds symbol versions, and updates documentation and ABI baselines. The symbol versions are present unconditionally as GLIBC_2.27 in the relevant Versions files, as it's OK for those to specify versions for functions that may not be present in some configurations; no additional complexity is needed unless in future some configuration gains support for this type that didn't have such support in 2.27. The Makeconfig additions for ia64 and x86 aren't strictly needed, as those configurations also get float64x-alias-fcts definitions from sysdeps/ieee754/float128/Makeconfig, but still seem appropriate given that _Float64x is not _Float128 for those configurations. A libm-test-ulps update for x86 is included. This is because bits/mathinline.h does not have _Float64x support added and for two functions the use of out-of-line functions results in increased ulps (ifloat64x shares ulps with ildouble / ifloat128 as appropriate). Given that we'd like generally to eliminate bits/mathinline.h optimizations, preferring to have such optimizations in GCC instead, it seems reasonable not to add such support there for new types. GCC support for _FloatN / _FloatNx built-in functions is limited, but has been improved in GCC 8, and at some point I hope the full set of libm built-in functions in GCC, and other optimizations with per-floating-type aspects, will be enabled for all _FloatN / _FloatNx types. Tested for x86_64 and x86, and with build-many-glibcs.py, with both GCC 6 and GCC 7. * sysdeps/ia64/Makeconfig (float64x-alias-fcts): New variable. * sysdeps/ieee754/float128/Makeconfig (float64x-alias-fcts): Likewise. * sysdeps/ieee754/ldbl-128/Makeconfig (float64x-alias-fcts): Likewise. * sysdeps/x86/Makeconfig: New file. * bits/floatn-common.h (__HAVE_FLOAT64X): Remove macro. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * bits/floatn.h (__HAVE_FLOAT64X): New macro. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * sysdeps/ia64/bits/floatn.h (__HAVE_FLOAT64X): Likewise. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * sysdeps/ieee754/ldbl-128/bits/floatn.h (__HAVE_FLOAT64X): Likewise. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * sysdeps/mips/ieee754/bits/floatn.h (__HAVE_FLOAT64X): Likewise. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * sysdeps/powerpc/bits/floatn.h (__HAVE_FLOAT64X): Likewise. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * sysdeps/x86/bits/floatn.h (__HAVE_FLOAT64X): Likewise. (__HAVE_FLOAT64X_LONG_DOUBLE): Likewise. * manual/math.texi (Mathematics): Document support for _Float64x. * math/Versions (GLIBC_2.27): Add _Float64x functions. * stdlib/Versions (GLIBC_2.27): Likewise. * wcsmbs/Versions (GLIBC_2.27): Likewise. * sysdeps/unix/sysv/linux/aarch64/libc.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise. * sysdeps/i386/fpu/libm-test-ulps: Likewise. * sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise.
2017-11-27 14:16:47 +00:00
}
stdlib: Add arc4random, arc4random_buf, and arc4random_uniform (BZ #4417) The implementation is based on scalar Chacha20 with per-thread cache. It uses getrandom or /dev/urandom as fallback to get the initial entropy, and reseeds the internal state on every 16MB of consumed buffer. To improve performance and lower memory consumption the per-thread cache is allocated lazily on first arc4random functions call, and if the memory allocation fails getentropy or /dev/urandom is used as fallback. The cache is also cleared on thread exit iff it was initialized (so if arc4random is not called it is not touched). Although it is lock-free, arc4random is still not async-signal-safe (the per thread state is not updated atomically). The ChaCha20 implementation is based on RFC8439 [1], omitting the final XOR of the keystream with the plaintext because the plaintext is a stream of zeros. This strategy is similar to what OpenBSD arc4random does. The arc4random_uniform is based on previous work by Florian Weimer, where the algorithm is based on Jérémie Lumbroso paper Optimal Discrete Uniform Generation from Coin Flips, and Applications (2013) [2], who credits Donald E. Knuth and Andrew C. Yao, The complexity of nonuniform random number generation (1976), for solving the general case. The main advantage of this method is the that the unit of randomness is not the uniform random variable (uint32_t), but a random bit. It optimizes the internal buffer sampling by initially consuming a 32-bit random variable and then sampling byte per byte. Depending of the upper bound requested, it might lead to better CPU utilization. Checked on x86_64-linux-gnu, aarch64-linux, and powerpc64le-linux-gnu. Co-authored-by: Florian Weimer <fweimer@redhat.com> Reviewed-by: Yann Droneaud <ydroneaud@opteya.com> [1] https://datatracker.ietf.org/doc/html/rfc8439 [2] https://arxiv.org/pdf/1304.1916.pdf
2022-07-21 13:04:59 +00:00
GLIBC_2.36 {
arc4random;
arc4random_buf;
arc4random_uniform;
}
GLIBC_2.37 {
}
C2x strtol binary constant handling C2x adds binary integer constants starting with 0b or 0B, and supports those constants in strtol-family functions when the base passed is 0 or 2. Implement that strtol support for glibc. As discussed at <https://sourceware.org/pipermail/libc-alpha/2020-December/120414.html>, this is incompatible with previous C standard versions, in that such an input string starting with 0b or 0B was previously required to be parsed as 0 (with the rest of the string unprocessed). Thus, as proposed there, this patch adds 20 new __isoc23_* functions with appropriate header redirection support. This patch does *not* do anything about scanf %i (which will need 12 new functions per long double variant, so 12, 24 or 36 depending on the glibc configuration), instead leaving that for a future patch. The function names would remain as __isoc23_* even if C2x ends up published in 2024 rather than 2023. Making this change leads to the question of what should happen to internal uses of these functions in glibc and its tests. The header redirection (which applies for _GNU_SOURCE or any other feature test macros enabling C2x features) has the effect of redirecting internal uses but without those uses then ending up at a hidden alias (see the comment in include/stdio.h about interaction with libc_hidden_proto). It seems desirable for the default for internal uses to be the same versions used by normal code using _GNU_SOURCE, so rather than doing anything to disable that redirection, similar macro definitions to those in include/stdio.h are added to the include/ headers for the new functions. Given that the default for uses in glibc is for the redirections to apply, the next question is whether the C2x semantics are correct for all those uses. Uses with the base fixed to 10, 16 or any other value other than 0 or 2 can be ignored. I think this leaves the following internal uses to consider (an important consideration for review of this patch will be both whether this list is complete and whether my conclusions on all entries in it are correct): benchtests/bench-malloc-simple.c benchtests/bench-string.h elf/sotruss-lib.c math/libm-test-support.c nptl/perf.c nscd/nscd_conf.c nss/nss_files/files-parse.c posix/tst-fnmatch.c posix/wordexp.c resolv/inet_addr.c rt/tst-mqueue7.c soft-fp/testit.c stdlib/fmtmsg.c support/support_test_main.c support/test-container.c sysdeps/pthread/tst-mutex10.c I think all of these places are OK with the new semantics, except for resolv/inet_addr.c, where the POSIX semantics of inet_addr do not allow for binary constants; thus, I changed that file (to use __strtoul_internal, whose semantics are unchanged) and added a test for this case. In the case of posix/wordexp.c I think accepting binary constants is OK since POSIX explicitly allows additional forms of shell arithmetic expressions, and in stdlib/fmtmsg.c SEV_LEVEL is not in POSIX so again I think accepting binary constants is OK. Functions such as __strtol_internal, which are only exported for compatibility with old binaries from when those were used in inline functions in headers, have unchanged semantics; the __*_l_internal versions (purely internal to libc and not exported) have a new argument to specify whether to accept binary constants. As well as for the standard functions, the header redirection also applies to the *_l versions (GNU extensions), and to legacy functions such as strtoq, to avoid confusing inconsistency (the *q functions redirect to __isoc23_*ll rather than needing their own __isoc23_* entry points). For the functions that are only declared with _GNU_SOURCE, this means the old versions are no longer available for normal user programs at all. An internal __GLIBC_USE_C2X_STRTOL macro is used to control the redirections in the headers, and cases in glibc that wish to avoid the redirections - the function implementations themselves and the tests of the old versions of the GNU functions - then undefine and redefine that macro to allow the old versions to be accessed. (There would of course be greater complexity should we wish to make any of the old versions into compat symbols / avoid them being defined at all for new glibc ABIs.) strtol_l.c has some similarity to strtol.c in gnulib, but has already diverged some way (and isn't listed at all at https://sourceware.org/glibc/wiki/SharedSourceFiles unlike strtoll.c and strtoul.c); I haven't made any attempts at gnulib compatibility in the changes to that file. I note incidentally that inttypes.h and wchar.h are missing the __nonnull present on declarations of this family of functions in stdlib.h; I didn't make any changes in that regard for the new declarations added.
2023-02-16 23:02:40 +00:00
GLIBC_2.38 {
__isoc23_strtol;
__isoc23_strtoll;
__isoc23_strtoul;
__isoc23_strtoull;
__isoc23_strtoimax;
__isoc23_strtoumax;
}
Update. 2002-02-01 Jakub Jelinek <jakub@redhat.com> * Versions.def (libc): Add GLIBC_PRIVATE. (libdb, libnss_db, libdb1): Remove. (libnss_compat, libnss_dns, libnss_files, libnss_hesiod, libnss_nis, libnss_nisplus): Move all symbols to GLIBC_PRIVATE. (libpthread): Add GLIBC_PRIVATE. (libresolv): Likewise, remove GLIBC_2.1. (ld): Add GLIBC_PRIVATE, remove GLIBC_2.1.1, GLIBC_2.2, GLIBC_2.2.1, GLIBC_2.2.3, GLIBC_2.3. * catgets/Versions (__open_catalog): Move to GLIBC_PRIVATE. * elf/Versions (_dl_open, _dl_close, _dl_addr, _dl_init_first, _dl_sym, _dl_vsym): Likewise. (__libc_enable_secure, __libc_stack_end, _dl_argv, _dl_catch_error, _dl_check_all_versions, _dl_check_map_versions, _dl_debug_initialize, _dl_debug_printf, _dl_debug_state, _dl_dst_count, _dl_dst_substitute, _dl_init, _dl_lookup_symbol, _dl_lookup_symbol_skip, _dl_lookup_versioned_symbol, _dl_lookup_versioned_symbol_skip, _dl_map_object, _dl_map_object_deps, _dl_out_of_memory, _dl_relocate_object, _dl_signal_error, _dl_start_profile, _dl_starting_up, _dl_sysdep_start, _dl_unload_cache, _rtld_global): Likewise. (_dl_object_relocation_scope): Remove. * hesiod/Versions: Move all symbols to GLIBC_PRIVATE. * iconv/Versions (__gconv_alias_db, __gconv_modules_db, __gconv_cache): Move to GLIBC_PRIVATE. * inet/Versions (__internal_endnetgrent, __internal_getnetgrent_r, __internal_setnetgrent): Likewise. * io/Versions (__libc_open, __libc_close, __libc_read, __libc_write, __libc_lseek, __libc_fcntl, __libc_open64, __libc_lseek64): Likewise. * locale/Versions (__collate_element_hash, __collate_element_strings, __collate_symbol_classes, __collate_symbol_hash, __collate_symbol_strings, _nl_current_LC_COLLATE, _nl_current_LC_CTYPE): Likewise. * misc/Versions (__libc_fsync, __libc_msync): Likewise. * nis/Versions (libnss_compat): Move all symbols to GLIBC_PRIVATE. (libnss_nis, libnss_nisplus): Likewise. * nss/Versions (_nss_files_parse_grent, _nss_files_parse_pwent, _nss_files_parse_spent): Move to GLIBC_PRIVATE. (libnss_files): Move all symbols to GLIBC_PRIVATE. * posix/Versions (__libc_wait, __libc_waitpid, __libc_pause, __libc_nanosleep, __libc_fork, __libc_pread, __libc_pread64, __libc_pwrite, __libc_pwrite64): Move to GLIBC_PRIVATE. * resolv/Versions (__gai_sigqueue, __ns_name_unpack, __ns_name_ntop, __ns_get16, __ns_samename): Likewise. (libnss_dns): Move all symbols to GLIBC_PRIVATE. * setjmp/Versions (__libc_longjmp, __libc_siglongjmp): Move to GLIBC_PRIVATE. * socket/Versions (__libc_accept, __libc_send, __libc_recvfrom, __libc_recvmsg, __libc_sendmsg, __libc_recv, __libc_sendto, __libc_connect): Likewise. * stdio-common/Versions (_itoa_lower_digits, _itoa_upper_digits): Likewise. * stdlib/Versions (__libc_system): Likewise. * sunrpc/Versions (__rpc_thread_destroy): Likewise. * sysdeps/hppa/Versions: Move all symbols to GLIBC_PRIVATE. * sysdeps/ia64/fpu/Versions: Likewise. * sysdeps/ia64/Versions: Likewise. * sysdeps/unix/sysv/linux/ia64/Versions: Likewise. * sysdeps/unix/sysv/linux/i386/Versions (__modify_ldt): Move to GLIBC_PRIVATE. * sysdeps/unix/sysv/linux/x86_64/Versions (__modify_ldt): Likewise. * sysdeps/unix/sysv/linux/Versions (__syscall_rt_sigqueueinfo, __libc_sigaction): Likewise. * termios/Versions (__libc_tcdrain): Likewise. * misc/sys/cdefs (__attribute_noinline__): Define. * elf/dl-lookup.c (_dl_do_lookup, _dl_do_lookup_versioned): Add __attribute_noinline__. * elf/Makefile (rtld-routines): Add dl-xstat64, dl-fxstat64. * elf/dl-xstat64.c: New file. * elf/dl-fxstat64.c: New file. * sysdeps/unix/sysv/linux/fxstat64.c: If RTLD_STAT64 is defined, don't export __fxstat64 at multiple versions. * sysdeps/unix/sysv/linux/lxstat64.c: Similarly. * sysdeps/unix/sysv/linux/xstat64.c: Similarly.
2002-02-01 23:24:05 +00:00
GLIBC_PRIVATE {
# functions which have an additional interface since they are
# are cancelable.
__libc_system;
# Variable which needs a dynamic symbol table entry.
__abort_msg;
# Used from other libraries
__libc_secure_getenv;
__call_tls_dtors;
__strtof_nan; __strtod_nan; __strtold_nan;
Update. 2002-02-01 Jakub Jelinek <jakub@redhat.com> * Versions.def (libc): Add GLIBC_PRIVATE. (libdb, libnss_db, libdb1): Remove. (libnss_compat, libnss_dns, libnss_files, libnss_hesiod, libnss_nis, libnss_nisplus): Move all symbols to GLIBC_PRIVATE. (libpthread): Add GLIBC_PRIVATE. (libresolv): Likewise, remove GLIBC_2.1. (ld): Add GLIBC_PRIVATE, remove GLIBC_2.1.1, GLIBC_2.2, GLIBC_2.2.1, GLIBC_2.2.3, GLIBC_2.3. * catgets/Versions (__open_catalog): Move to GLIBC_PRIVATE. * elf/Versions (_dl_open, _dl_close, _dl_addr, _dl_init_first, _dl_sym, _dl_vsym): Likewise. (__libc_enable_secure, __libc_stack_end, _dl_argv, _dl_catch_error, _dl_check_all_versions, _dl_check_map_versions, _dl_debug_initialize, _dl_debug_printf, _dl_debug_state, _dl_dst_count, _dl_dst_substitute, _dl_init, _dl_lookup_symbol, _dl_lookup_symbol_skip, _dl_lookup_versioned_symbol, _dl_lookup_versioned_symbol_skip, _dl_map_object, _dl_map_object_deps, _dl_out_of_memory, _dl_relocate_object, _dl_signal_error, _dl_start_profile, _dl_starting_up, _dl_sysdep_start, _dl_unload_cache, _rtld_global): Likewise. (_dl_object_relocation_scope): Remove. * hesiod/Versions: Move all symbols to GLIBC_PRIVATE. * iconv/Versions (__gconv_alias_db, __gconv_modules_db, __gconv_cache): Move to GLIBC_PRIVATE. * inet/Versions (__internal_endnetgrent, __internal_getnetgrent_r, __internal_setnetgrent): Likewise. * io/Versions (__libc_open, __libc_close, __libc_read, __libc_write, __libc_lseek, __libc_fcntl, __libc_open64, __libc_lseek64): Likewise. * locale/Versions (__collate_element_hash, __collate_element_strings, __collate_symbol_classes, __collate_symbol_hash, __collate_symbol_strings, _nl_current_LC_COLLATE, _nl_current_LC_CTYPE): Likewise. * misc/Versions (__libc_fsync, __libc_msync): Likewise. * nis/Versions (libnss_compat): Move all symbols to GLIBC_PRIVATE. (libnss_nis, libnss_nisplus): Likewise. * nss/Versions (_nss_files_parse_grent, _nss_files_parse_pwent, _nss_files_parse_spent): Move to GLIBC_PRIVATE. (libnss_files): Move all symbols to GLIBC_PRIVATE. * posix/Versions (__libc_wait, __libc_waitpid, __libc_pause, __libc_nanosleep, __libc_fork, __libc_pread, __libc_pread64, __libc_pwrite, __libc_pwrite64): Move to GLIBC_PRIVATE. * resolv/Versions (__gai_sigqueue, __ns_name_unpack, __ns_name_ntop, __ns_get16, __ns_samename): Likewise. (libnss_dns): Move all symbols to GLIBC_PRIVATE. * setjmp/Versions (__libc_longjmp, __libc_siglongjmp): Move to GLIBC_PRIVATE. * socket/Versions (__libc_accept, __libc_send, __libc_recvfrom, __libc_recvmsg, __libc_sendmsg, __libc_recv, __libc_sendto, __libc_connect): Likewise. * stdio-common/Versions (_itoa_lower_digits, _itoa_upper_digits): Likewise. * stdlib/Versions (__libc_system): Likewise. * sunrpc/Versions (__rpc_thread_destroy): Likewise. * sysdeps/hppa/Versions: Move all symbols to GLIBC_PRIVATE. * sysdeps/ia64/fpu/Versions: Likewise. * sysdeps/ia64/Versions: Likewise. * sysdeps/unix/sysv/linux/ia64/Versions: Likewise. * sysdeps/unix/sysv/linux/i386/Versions (__modify_ldt): Move to GLIBC_PRIVATE. * sysdeps/unix/sysv/linux/x86_64/Versions (__modify_ldt): Likewise. * sysdeps/unix/sysv/linux/Versions (__syscall_rt_sigqueueinfo, __libc_sigaction): Likewise. * termios/Versions (__libc_tcdrain): Likewise. * misc/sys/cdefs (__attribute_noinline__): Define. * elf/dl-lookup.c (_dl_do_lookup, _dl_do_lookup_versioned): Add __attribute_noinline__. * elf/Makefile (rtld-routines): Add dl-xstat64, dl-fxstat64. * elf/dl-xstat64.c: New file. * elf/dl-fxstat64.c: New file. * sysdeps/unix/sysv/linux/fxstat64.c: If RTLD_STAT64 is defined, don't export __fxstat64 at multiple versions. * sysdeps/unix/sysv/linux/lxstat64.c: Similarly. * sysdeps/unix/sysv/linux/xstat64.c: Similarly.
2002-02-01 23:24:05 +00:00
}
Update. 1998-07-02 21:51 Ulrich Drepper <drepper@cygnus.com> * Makeconfig: Define list of subdirs as all-subdirs and make subdirs a copy. * Makefile: Add rules to generate map files. (distribute): Remove libc.map, add Versions.def and versions.awk. * Makerules: Change rules to find map files on common-objpfx. * elf/Makefile: Likewise. * md5-crypt/Makefile: Likewise. * nis/Makefile (libnsl-map): Remove. * Versions.def: New file. * versions.awk: New file. * argp/Versions: New file. * assert/Versions: New file. * catgets/Versions: New file. * csu/Versions: New file. * ctype/Versions: New file. * db/Versions: New file. * debug/Versions: New file. * dirent/Versions: New file. * elf/Versions: New file. * gmon/Versions: New file. * grp/Versions: New file. * hesiod/Versions: New file. * hurd/Versions: New file. * iconv/Versions: New file. * inet/Versions: New file. * intl/Versions: New file. * io/Versions: New file. * libio/Versions: New file. * linuxthreads/Versions: New file. * locale/Versions: New file. * login/Versions: New file. * malloc/Versions: New file. * math/Versions: New file. * md5-crypt/Versions: New file. * misc/Versions: New file. * nis/Versions: New file. * nss/Versions: New file. * posix/Versions: New file. * pwd/Versions: New file. * resolv/Versions: New file. * resource/Versions: New file. * rt/Versions: New file. * setjmp/Versions: New file. * shadow/Versions: New file. * signal/Versions: New file. * socket/Versions: New file. * stdio/Versions: New file. * stdio-common/Versions: New file. * stdlib/Versions: New file. * streams/Versions: New file. * string/Versions: New file. * sunrpc/Versions: New file. * sysdeps/alpha/Versions: New file. * sysdeps/alpha/fpu/Versions: New file. * sysdeps/i386/Versions: New file. * sysdeps/sparc/Versions: New file. * sysdeps/unix/sysv/Versions: New file. * sysdeps/unix/sysv/linux/Versions: New file. * sysdeps/unix/sysv/linux/alpha/Versions: New file. * sysdeps/unix/sysv/linux/i386/Versions: New file. * sysdeps/unix/sysv/linux/mips/Versions: New file. * sysvipc/Versions: New file. * termios/Versions: New file. * time/Versions: New file. * wcsmbs/Versions: New file. * wctype/Versions: New file. * libc.map: Removed. * db/libdb.map: Removed. * elf/libdl.map: Removed. * hesiod/libnss_hesiod.map: Removed. * hurd/libhurduser.map: Removed. * hurd/libmachuser.map: Removed. * linuxthreads/libpthread.map: Removed. * locale/libBrokenLocale.map: Removed. * login/libutil.map: Removed. * math/libm.map: Removed. * md5-crypt/libcrypt.map: Removed. * nis/libnsl.map: Removed. * nis/libnsl_compat.map: Removed. * nis/libnss_nis.map: Removed. * nis/libnss_nisplus.map: Removed. * nss/libnss_db.map: Removed. * nss/libnss_files.map: Removed. * resolv/libnss_dns.map: Removed. * resolv/libresolv.map: Removed. * rt/librt.map: Removed. * elf/dl-load.c (fillin_rpath): Fix test for trusted directory. Fix typos. * elf/rtld.c (process_dl_debug): Recognize 'all'. (process_envvars): LD_BIND_NOW must be followed by y, Y, or 1. * sysdeps/generic/elf/backtracesyms.c: Allocate string memory of correct size. * sysdeps/unix/sysv/linux/getsysstats.c (get_proc_path): Fix typo in comment.
1998-07-02 22:51:40 +00:00
}