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>
2017-10-16 22:04:42 +00:00
|
|
|
%include <float128-abi.h>
|
1998-07-02 22:51:40 +00:00
|
|
|
libc {
|
|
|
|
GLIBC_2.0 {
|
|
|
|
# functions with required interface outside normal name space
|
|
|
|
__xpg_basename;
|
|
|
|
|
|
|
|
# functions used in inline functions or macros
|
2017-04-20 20:35:21 +00:00
|
|
|
__strtod_internal; __strtof_internal; __strtold_internal;
|
|
|
|
__strtol_internal; __strtoll_internal;
|
|
|
|
__strtoul_internal; __strtoull_internal;
|
|
|
|
# functions formerly so used (compatibility symbols)
|
|
|
|
__strtoq_internal; __strtouq_internal;
|
1998-07-02 22:51:40 +00:00
|
|
|
|
2012-07-25 17:46:22 +00:00
|
|
|
# compatibility symbol
|
2002-02-19 17:43:23 +00:00
|
|
|
__secure_getenv;
|
1998-07-02 22:51:40 +00:00
|
|
|
|
|
|
|
# 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; mcheck; mcount; mrand48; mrand48_r;
|
|
|
|
|
|
|
|
# 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;
|
|
|
|
}
|
1999-02-07 12:50:11 +00:00
|
|
|
GLIBC_2.1.1 {
|
|
|
|
# _*
|
|
|
|
_Exit;
|
|
|
|
|
|
|
|
# i*
|
|
|
|
imaxabs; imaxdiv;
|
|
|
|
}
|
1999-12-27 21:50:29 +00:00
|
|
|
GLIBC_2.1.3 {
|
|
|
|
# used by new G++ ABI
|
|
|
|
__cxa_atexit; __cxa_finalize;
|
|
|
|
}
|
2002-07-11 16:34:20 +00:00
|
|
|
GLIBC_2.3 {
|
|
|
|
# Silent change in SUS.
|
|
|
|
realpath;
|
|
|
|
}
|
2007-11-13 17:21:43 +00:00
|
|
|
GLIBC_2.8 {
|
|
|
|
qsort_r;
|
|
|
|
}
|
2009-03-08 19:53:12 +00:00
|
|
|
GLIBC_2.10 {
|
|
|
|
quick_exit; __cxa_at_quick_exit;
|
|
|
|
}
|
2010-08-08 04:24:05 +00:00
|
|
|
GLIBC_2.13 {
|
|
|
|
__fentry__;
|
|
|
|
}
|
2012-07-25 17:46:22 +00:00
|
|
|
GLIBC_2.17 {
|
|
|
|
secure_getenv;
|
|
|
|
}
|
2013-02-18 13:38:21 +00:00
|
|
|
GLIBC_2.18 {
|
|
|
|
__cxa_thread_atexit_impl;
|
|
|
|
}
|
2016-06-06 18:20:58 +00:00
|
|
|
GLIBC_2.24 {
|
|
|
|
quick_exit;
|
|
|
|
}
|
2016-06-28 20:30:42 +00:00
|
|
|
GLIBC_2.25 {
|
|
|
|
# s*
|
|
|
|
strfromd; strfromf; strfroml;
|
2016-12-12 16:28:03 +00:00
|
|
|
getrandom; getentropy;
|
2016-06-28 20:30:42 +00:00
|
|
|
}
|
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>
2017-10-16 22:04:42 +00:00
|
|
|
%ifdef FLOAT128_VERSION
|
|
|
|
FLOAT128_VERSION {
|
|
|
|
strfromf128;
|
|
|
|
strtof128;
|
|
|
|
strtof128_l;
|
|
|
|
wcstof128;
|
|
|
|
wcstof128_l;
|
|
|
|
}
|
|
|
|
%endif
|
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.
|
2002-02-28 20:15:06 +00:00
|
|
|
__libc_system;
|
2009-06-15 23:17:09 +00:00
|
|
|
# Variable which needs a dynamic symbol table entry.
|
|
|
|
__abort_msg;
|
2012-07-25 17:46:22 +00:00
|
|
|
# Used from other libraries
|
|
|
|
__libc_secure_getenv;
|
2013-02-18 13:38:21 +00:00
|
|
|
__call_tls_dtors;
|
Fix nan functions handling of payload strings (bug 16961, bug 16962).
The nan, nanf and nanl functions handle payload strings by doing e.g.:
if (tagp[0] != '\0')
{
char buf[6 + strlen (tagp)];
sprintf (buf, "NAN(%s)", tagp);
return strtod (buf, NULL);
}
This is an unbounded stack allocation based on the length of the
argument. Furthermore, if the argument starts with an n-char-sequence
followed by ')', that n-char-sequence is wrongly treated as
significant for determining the payload of the resulting NaN, when ISO
C says the call should be equivalent to strtod ("NAN", NULL), without
being affected by that initial n-char-sequence. This patch fixes both
those problems by using the __strtod_nan etc. functions recently
factored out of strtod etc. for that purpose, with those functions
being exported from libc at version GLIBC_PRIVATE.
Tested for x86_64, x86, mips64 and powerpc.
[BZ #16961]
[BZ #16962]
* math/s_nan.c (__nan): Use __strtod_nan instead of constructing a
string on the stack for strtod.
* math/s_nanf.c (__nanf): Use __strtof_nan instead of constructing
a string on the stack for strtof.
* math/s_nanl.c (__nanl): Use __strtold_nan instead of
constructing a string on the stack for strtold.
* stdlib/Versions (libc): Add __strtof_nan, __strtod_nan and
__strtold_nan to GLIBC_PRIVATE.
* math/test-nan-overflow.c: New file.
* math/test-nan-payload.c: Likewise.
* math/Makefile (tests): Add test-nan-overflow and
test-nan-payload.
2015-12-04 20:36:28 +00:00
|
|
|
__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
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}
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1998-07-02 22:51:40 +00:00
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}
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