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* Hide internal __strsep function [BZ #18822]H.J. Lu2017-10-013-0/+8
| | | | | | | | | Hide internal __strsep function to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/string.h (__strsep): Add libc_hidden_proto. * string/strsep.c (__strsep): Add libc_hidden_def.
* Hide __posix_spawn_file_actions_realloc/__spawni [BZ #18822]H.J. Lu2017-10-012-2/+10
| | | | | | | | | | | Hide internal __posix_spawn_file_actions_realloc and /__spawni functions to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * posix/spawn_int.h (__posix_spawn_file_actions_realloc): Add attribute_hidden. (__spawni): Likewise.
* Hide internal __mremap function [BZ #18822]H.J. Lu2017-10-013-0/+9
| | | | | | | | | | | | | Hide internal __mremap function to allow direct access within libc.so and libc.a without using GOT nor PLT. __GI___mremap is defined when sysdeps/unix/syscalls.list is used to generate mremap. Otherwise libc_hidden_def is needed explicitly. [BZ #18822] * include/sys/mman.h (__mremap): Add libc_hidden_proto. * sysdeps/unix/sysv/linux/m68k/mremap.S (__mremap): Add libc_hidden_def.
* Hide internal __malloc_check_init function [BZ #18822]H.J. Lu2017-10-012-0/+7
| | | | | | | | Hide internal __malloc_check_init function to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/malloc.h (__malloc_check_init): Add attribute_hidden.
* Hide internal __ioctl function [BZ #18822]H.J. Lu2017-10-018-0/+19
| | | | | | | | | | | | | | | | | | Hide internal __ioctl function to allow direct access within libc.so and libc.a without using GOT nor PLT. __GI___ioctl is defined when sysdeps/unix/syscalls.list is used to generate ioctl. Otherwise libc_hidden_def is needed explicitly. [BZ #18822] * include/sys/ioctl.h (__ioctl): Add libc_hidden_proto. * misc/ioctl.c (__ioctl): Add libc_hidden_def. * sysdeps/mach/hurd/ioctl.c (__ioctl): Likewise. * sysdeps/unix/sysv/linux/aarch64/ioctl.S (__ioctl): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/ioctl.S (__ioctl): Likewise. * sysdeps/unix/sysv/linux/powerpc/ioctl.c (__ioctl): Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/ioctl.S (__ioctl): Likewise.
* Mark internal intl functions with attribute_hidden [BZ #18822]H.J. Lu2017-10-012-2/+9
| | | | | | | | | Mark internal intl functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * intl/gettextP.h (__dcngettext): Add attribute_hidden. (__dcigettext): Likewise.
* Hide internal sysinfo functions [BZ #18822]H.J. Lu2017-10-015-1/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | Hide internal sysinfo functions to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/sys/sysinfo.h (__get_nprocs_conf): Add libc_hidden_proto. (__get_nprocs): Likewise. (__get_phys_pages): Likewise. (__get_avphys_pages): Likewise. (__get_child_max): Add attribute_hidden. * misc/getsysstats.c (__get_nprocs_conf): Add libc_hidden_def. (__get_nprocs): Likewise. (__get_phys_pages): Likewise. (__get_avphys_pages): Likewise. * sysdeps/mach/getsysstats.c (__get_nprocs_conf): Add libc_hidden_def. (__get_nprocs): Likewise. (__get_phys_pages): Likewise. (__get_avphys_pages): Likewise. * sysdeps/unix/sysv/linux/getsysstats.c (__get_nprocs): Add libc_hidden_def. (__get_nprocs_conf): Likewise. (__get_phys_pages): Likewise. (__get_avphys_pages): Likewise.
* Mark internal netlink functions with attribute_hidden [BZ #18822]H.J. Lu2017-10-012-4/+15
| | | | | | | | | | | | Mark internal netlink functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * sysdeps/unix/sysv/linux/netlinkaccess.h (__netlink_open): Add attribute_hidden. (__netlink_close): Likewise. (__netlink_free_handle): Likewise. (__netlink_request): Likewise.
* Mark internal rpc functions with attribute_hidden [BZ #18822]H.J. Lu2017-10-012-4/+13
| | | | | | | | | | | | Mark internal rpc functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/rpc/rpc.h (__rpc_thread_variables): Add attribute_hidden. (__rpc_thread_svc_cleanup): Likewise. (__rpc_thread_clnt_cleanup): Likewise. (__rpc_thread_key_cleanup): Likewise.
* Hide __readv and __writev [BZ #18822]H.J. Lu2017-10-018-0/+24
| | | | | | | | | | | | | | | | | Hide internal __readv and __writev functions to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/sys/uio.h (__readv): Add libc_hidden_proto. (__writev): Likewise. * misc/readv.c (__readv): Add libc_hidden_def. * misc/writev.c (__writev): Likewise. * sysdeps/posix/readv.c (__readv): Likewise. * sysdeps/posix/writev.c (__writev): Likewise. * sysdeps/unix/sysv/linux/readv.c: Include <sys/uio.h>. (__readv): Likewise. * sysdeps/unix/sysv/linux/writev.c: Include <sys/uio.h>. (__writev): Likewise.
* Hide internal regex functions [BZ #18822]H.J. Lu2017-10-014-1/+20
| | | | | | | | | | | | | | Hide internal regex functions to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/regex.h (__re_compile_fastmap): Add attribute_hidden. (__regcomp): Add libc_hidden_proto. (__regexec): Likewise. (__regfree): Likewise. * posix/regcomp.c (__regcomp): Add libc_hidden_def. (__regfree): Likewise. * posix/regexec.c (__regexec): Likewise.
* Mark internal utmp functions with attribute_hidden [BZ #18822]H.J. Lu2017-10-019-3/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | Mark internal utmp functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/utmp.h (__updwtmp): Add libc_hidden_proto. (__getutent): Likewise. (__getutid): Likewise. (__getutline): Likewise. (__pututline): Likewise. (__getutent_r): Likewise. (__getutid_r): Likewise. (__getutline_r): Likewise. (__utmpname): Add attribute_hidden. (__setutent): Likewise. (__endutent): Likewise. * login/getutent.c (__getutent): Add libc_hidden_def. * login/getutent_r.c (__getutent_r): Likewise. (__pututline): Likewise. * login/getutid.c (__getutid): Likewise. * login/getutid_r.c (__getutid_r): Likewise. * login/getutline.c (__getutline): Likewise. * login/getutline_r.c (__getutline_r): Likewise. * login/updwtmp.c (__updwtmp): Likewise.
* Mark internal dirent functions with attribute_hidden [BZ #18822]H.J. Lu2017-10-016-8/+23
| | | | | | | | | | | | | | | | | | | Mark internal dirent functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. __readdir64 is hidden with libc_hidden_proto and libc_hidden_def since the exported readdir64 is an alias of __readdir64. [BZ #18822] * include/dirent.h (__opendir): Always add attribute_hidden. (__fdopendir): Likewise. (__closedir): Likewise. (__readdir): Likewise. (__readdir64): Add libc_hidden_proto. * sysdeps/mach/hurd/readdir64.c (__readdir64): Add libc_hidden_def. * sysdeps/unix/sysv/linux/i386/readdir64.c (__readdir64): Likewise. * sysdeps/unix/sysv/linux/readdir64.c (__readdir64): Likewise. * sysdeps/unix/sysv/linux/wordsize-64/readdir.c (__GI___readdir64): New alias.
* Mark internal getXXXbyYYY functions with attribute_hidden [BZ #18822]H.J. Lu2017-10-015-14/+44
| | | | | | | | | | | | | | | | | | | | | Mark internal getXXXbyYYY functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/aliases.h (__getaliasbyname_r): Add attribute_hidden. * include/netdb.h (__gethostbyaddr_r): Likewise. (__gethostbyname_r): Likewise. (__gethostbyname2_r): Likewise. (__getnetbyaddr_r): Likewise. (__getnetbyname_r): Likewise. (__getservbyname_r): Likewise. (__getservbyport_r): Likewise. (__getprotobyname_r): Likewise. (__getprotobynumber_r): Likewise. (__getnetgrent_r): Likewise. * include/rpc/netdb.h (__getrpcbyname_r): Likewise. (__getrpcbynumber_r): Likewise. * nss/getXXbyYY.c (INTERNAL (REENTRANT_NAME)): Likewise.
* Mark internal stdio functions with attribute_hidden [BZ #18822]H.J. Lu2017-10-012-9/+22
| | | | | | | | | | | | | | | | Mark internal stdio functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/stdio.h (__fcloseall): Add attribute_hidden. (__getline): Likewise. (__path_search): Likewise. (__gen_tempname): Likewise. (__libc_message): Likewise. (__flockfile): Likewise. (__funlockfile): Likewise. (__fxprintf): Likewise. (__fxprintf_nocancel): Likewise.
* Mark internal gshadow functions with attribute_hidden [BZ #18822]H.J. Lu2017-10-012-2/+10
| | | | | | | | | Mark internal gshadow functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/gshadow.h (__fgetsgent_r): Add attribute_hidden. (__sgetsgent_r): Likewise.
* Mark internal statfs functions with attribute_hidden [BZ #18822]H.J. Lu2017-10-014-9/+31
| | | | | | | | | | | | | | | | Mark internal statfs functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/sys/statfs.h (__fstatfs): Add attribute_hidden. (__statfs64): Likewise. (__fstatfs64): Likewise. * include/sys/statvfs.h (__statvfs64): Likewise. (__fstatvfs64): Likewise. * sysdeps/unix/sysv/linux/pathconf.h (__statfs_link_max): Likewise. (__statfs_filesize_max): Likewise. (__statfs_symlinks): Likewise. (__statfs_chown_restricted): Likewise.
* Mark internal time functions with attribute_hidden [BZ #18822]H.J. Lu2017-10-012-11/+30
| | | | | | | | | | | | | | | | | | Mark internal time functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/time.h (__tzstring): Add attribute_hidden. (__tzfile_read): Likewise. (__tzfile_compute): Likewise. (__tzfile_default): Likewise. (__tzset_parse_tz): Likewise. (__offtime): Likewise. (__asctime_r): Likewise. (__tzset): Likewise. (__tz_convert): Likewise. (__getdate_r): Likewise. (__getclktck): Likewise.
* Mark internal nscd functions with attribute_hidden [BZ #18822]H.J. Lu2017-10-013-17/+50
| | | | | | | | | | | | | | | | | | | | | | | | Mark internal nscd functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * nscd/nscd-client.h (__nscd_get_map_ref): Add attribute_hidden. (__nscd_unmap): Likewise. (__nscd_cache_search): Likewise. (__nscd_get_nl_timestamp): Likewise. (__nscd_getpwnam_r): Likewise. (__nscd_getpwuid_r): Likewise. (__nscd_getgrnam_r): Likewise. (__nscd_getgrgid_r): Likewise. (__nscd_gethostbyname_r): Likewise. (__nscd_gethostbyname2_r): Likewise. (__nscd_gethostbyaddr_r): Likewise. (__nscd_getai): Likewise. (__nscd_getgrouplist): Likewise. (__nscd_getservbyname_r): Likewise. (__nscd_getservbyport_r): Likewise. (__nscd_innetgr): Likewise. (__nscd_setnetgrent): Likewise.
* Mark internal gmp functions with attribute_hidden [BZ #18822]H.J. Lu2017-10-013-11/+59
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Mark internal gmp functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/gmp.h: Declare internal functions only if _ISOMAC is undefined. (__mpn_extract_double): Add attribute_hidden. (__mpn_extract_long_double): Likewise. (__mpn_extract_float128): Likewise. (__mpn_construct_float): Likewise. (__mpn_construct_double): Likewise. (__mpn_construct_long_double): Likewise. (__mpn_construct_float128): Likewise. (mpn_add_1): Likewise. (mpn_addmul_1): Likewise. (mpn_add_n): Likewise. (mpn_cmp): Likewise. (mpn_divrem): Likewise. (mpn_lshift): Likewise. (mpn_mul): Likewise. (mpn_mul_1): Likewise. (mpn_rshift): Likewise. (mpn_sub_1): Likewise. (mpn_submul_1): Likewise. (mpn_sub_n): Likewise.
* Mark internal wchar functions with attribute_hidden [BZ #18822]H.J. Lu2017-10-012-14/+46
| | | | | | | | | | | | | | | | | | | | | | | | | Mark internal wchar functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/wchar.h (__wcsnlen): Add attribute_hidden. (__wcscat): Likewise. (__btowc): Likewise. (__wcrtomb): Likewise. (__mbsrtowcs): Likewise. (__wcsrtombs): Likewise. (__mbsnrtowcs): Likewise. (__wcsnrtombs): Likewise. (__wcsncpy): Likewise. (__wcpncpy): Likewise. (__wmemcpy): Likewise. (__wmempcpy): Likewise. (__wmemmove): Likewise. (__wcschrnul): Likewise. (__vfwscanf): Likewise. (__vswprintf): Likewise. (__fwprintf): Likewise. (__vfwprintf): Likewise.
* Mark internal grp/pwd/shadow functions with attribute_hidden [BZ #18822]H.J. Lu2017-10-014-9/+23
| | | | | | | | | | | | | | | | Mark internal grp/pwd/shadow functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/grp.h (__fgetgrent_r): Add attribute_hidden. (__getgrgid_r): Likewise. (__getgrnam_r): Likewise. * include/pwd.h (__getpwuid_r): Likewise. (__getpwnam_r): Likewise. (__fgetpwent_r): Likewise. * include/shadow.h (__getspnam_r): Likewise. (__sgetspent_r): Likewise. (__fgetspent_r): Likewise.
* Mark internal unistd functions with attribute_hidden [BZ #18822]H.J. Lu2017-10-012-28/+64
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mark internal unistd functions with attribute_hidden to allow direct access to them within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/unistd.h (__access): Add attribute_hidden. (__lseek64): Likewise. (__libc_pread64): Likewise. (__pipe2): Likewise. (__sleep): Likewise. (__chdir): Likewise. (__fchdir): Likewise. (__getcwd): Likewise. (__rmdir): Likewise. (__execvpe): Likewise. (__execve): Likewise. (__setsid): Likewise. (__getuid): Likewise. (__geteuid): Likewise. (__getgid): Likewise. (__getegid): Likewise. (__getgroups): Likewise. (__group_member): Likewise. (__ttyname_r): Likewise. (__isatty): Likewise. (__readlink): Likewise. (__unlink): Likewise. (__gethostname): Likewise. (__profil): Likewise. (__getdtablesize): Likewise. (__brk): Likewise. (__ftruncate): Likewise. (__ftruncate64): Likewise.
* Mark internal argp functions with attribute_hidden [BZ #18822]H.J. Lu2017-10-018-6/+49
| | | | | | | | | | | | | | | | | Mark internal argp functions with attribute_hidden to allow direct access to them within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * argp/argp-fmtstream.c: Include <argp-fmtstream.h>. * argp/argp-fs-xinl.c: Likewise. * argp/argp-help.c: Include <argp.h> and <argp-fmtstream.h>. * argp/argp-parse.c: Include <argp.h>. * argp/argp-xinl.c: Likewise. * include/argp-fmtstream.h: New file. * include/argp.h (__argp_error): Add attribute_hidden. (__argp_failure): Likewise. (__argp_input): Likewise. (__argp_state_help): Likewise.
* Mark ____wcsto*_l_internal functions with attribute_hidden [BZ #18822]H.J. Lu2017-10-0114-37/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mark ____wcsto*_l_internal functions with attribute_hidden to allow direct access to them within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/wchar.h (____wcstof_l_internal): New prototype. (____wcstod_l_internal): Likewise. (____wcstold_l_internal): Likewise. (____wcstol_l_internal): Likewise. (____wcstoul_l_internal): Likewise. (____wcstoll_l_internal): Likewise. (____wcstoull_l_internal): Likewise. (____wcstof128_l_internal): Likewise. * sysdeps/ieee754/float128/wcstof128.c (____wcstof128_l_internal): Removed. * sysdeps/ieee754/float128/wcstof128_l.c (____wcstof128_l_internal): Likewise. * wcsmbs/wcstod.c (____wcstod_l_internal): Likewise. * wcsmbs/wcstod_l.c (____wcstod_l_internal): Likewise. * wcsmbs/wcstof.c (____wcstof_l_internal): Likewise. * wcsmbs/wcstof_l.c (____wcstof_l_internal): Likewise. * wcsmbs/wcstol_l.c (____wcstol_l_internal): Likewise. * wcsmbs/wcstold.c (____wcstold_l_internal): Likewise. * wcsmbs/wcstold_l.c (____wcstold_l_internal): Likewise. * wcsmbs/wcstoll_l.c (____wcstoll_l_internal): Likewise. * wcsmbs/wcstoul_l.c (____wcstoul_l_internal): Likewise. * wcsmbs/wcstoull_l.c (____wcstoull_l_internal): Likewise.
* Mark __internal_statvfs[64] with attribute_hidden [BZ #18822]H.J. Lu2017-10-017-23/+50
| | | | | | | | | | | | | | | | | | | | | | Mark __internal_statvfs[64] with attribute_hidden to allow direct access to them within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * sysdeps/unix/sysv/linux/fstatvfs.c: Include "internal_statvfs.h" instead of <sys/statvfs.h>. (__internal_statvfs): Removed. * sysdeps/unix/sysv/linux/fstatvfs64.c Include "internal_statvfs.h" instead of <sys/statvfs.h>. (__internal_statvfs64): Removed. * sysdeps/unix/sysv/linux/internal_statvfs.c: Include "internal_statvfs.h" instead of <sys/statvfs.h>. * sysdeps/unix/sysv/linux/internal_statvfs.h: New file. * sysdeps/unix/sysv/linux/statvfs.c Include "internal_statvfs.h" instead of <sys/statvfs.h>. (__internal_statvfs): Removed. * sysdeps/unix/sysv/linux/statvfs64.c Include "internal_statvfs.h" instead of <sys/statvfs.h>. (__internal_statvfs64): Removed.
* Mark internal functions with attribute_hidden [BZ #18822]H.J. Lu2017-10-0114-41/+117
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mark internal functions with attribute_hidden to allow direct access to internal functions within libc.so and libc.a without using GOT nor PLT. Size comparison of libc.so: On x86-64: text data bss dec hex Before: 1728577 20584 17088 1766249 1af369 After : 1728593 20584 17088 1766265 1af379 The only change is __gconv_release_shlib in iconv/gconv_dl.c is inlined since it is hidden, which increases the code size of gconv_dl.os by 18 bytes. On i686: text data bss dec hex Before: 1869039 11444 11112 1891595 1cdd0b After : 1868635 11444 11112 1891191 1cdb77 The code size is decreased by avoiding GOT/PLT for hidden functions. [BZ #18822] * iconv/gconv_int.h (__gconv_open): Add attribute_hidden. (__gconv_close): Likewise. (__gconv): Likewise. (__gconv_find_transform): Likewise. (__gconv_lookup_cache): Likewise. (__gconv_compare_alias_cache): Likewise. (__gconv_load_cache): Likewise. (__gconv_get_path): Likewise. (__gconv_close_transform): Likewise. (__gconv_release_cache): Likewise. (__gconv_find_shlib): Likewise. (__gconv_release_shlib): Likewise. (__gconv_get_builtin_trans): Likewise. (__gconv_compare_alias): Likewise. * include/dlfcn.h (_dlerror_run): Likewise. * include/stdio.h (__fortify_fail_abort): Likewise. * include/time.h (__tz_compute): Likewise. (__strptime_internal): Likewise. * intl/gettextP.h (_nl_find_domain): Likewise. (_nl_load_domain): Likewise. (_nl_find_msg): Likewise. * intl/plural-exp.h (FREE_EXPRESSION): Likewise. (EXTRACT_PLURAL_EXPRESSION): Likewise. * locale/coll-lookup.h (__collidx_table_lookup): Likewise. * resolv/gai_misc.h (__gai_enqueue_request): Likewise. (__gai_find_request): Likewise. (__gai_remove_request): Likewise. (__gai_notify): Likewise. (__gai_notify_only): Likewise. * sysdeps/generic/aio_misc.h (__aio_sigqueue): Likewise. * sysdeps/generic/ldsodefs.h (_dl_fini): Likewise. (_dl_non_dynamic_init): Likewise. (_dl_aux_init): Likewise. * sysdeps/i386/machine-gmon.h (mcount_internal): Likewise. * sysdeps/unix/sysv/linux/i386/olddirent.h (__old_getdents64): Likewise. * wcsmbs/wcsmbsload.h (__wcsmbs_load_conv): Likewise. (__wcsmbs_clone_conv): Likewise. (__wcsmbs_named_conv): Likewise.
* Mark internal stdlib functions with attribute_hidden [BZ #18822]H.J. Lu2017-10-014-20/+68
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mark internal stdlib functions with attribute_hidden to allow direct access within libc.so and libc.a without using GOT nor PLT. __realpath is hidden with libc_hidden_proto and libc_hidden_def since the exported realpath is an alias of __realpath. [BZ #18822] * include/stdlib.h (__random): Add attribute_hidden. (__random_r): Likewise. (__srandom_r): Likewise. (__initstate_r): Likewise. (__setstate_r): Likewise. (__erand48_r): Likewise. (__nrand48_r): Likewise. (__jrand48_r): Likewise. (__srand48_r): Likewise. (__seed48_r): Likewise. (__lcong48_r): Likewise. (__drand48_iterate): Likewise. (__setenv): Likewise. (__unsetenv): Likewise. (__clearenv): Likewise. (__ptsname_r): Likewise. (__posix_openpt): Likewise. (__add_to_environ): Likewise. (__realpath): Add libc_hidden_proto. (__ecvt_r): Likewise. (__fcvt_r): Likewise. (__qecvt_r): Likewise. (__qfcvt_r): Likewise. * misc/efgcvt_r.c (cvt_symbol_1): Add libc_hidden_def (local). * stdlib/canonicalize.c (__realpath): Add libc_hidden_def.
* Mark 3 *_internal functions with attribute_hidden [BZ #18822]H.J. Lu2017-10-014-3/+11
| | | | | | | | | | | Mark __ptsname_internal, __mktime_internal and __fopen_internal with attribute_hidden to allow direct access to them within libc.so and libc.a without using GOT nor PLT. [BZ #18822] * include/stdlib.h (__ptsname_internal): Add attribute_hidden. * include/time.h (__mktime_internal): Likewise. * libio/iolibio.h (__fopen_internal): Likewise.
* Fix return pointer save and PIC register restore in __getcontext andJohn David Anglin2017-10-013-1/+12
| | | | | | | | | __setcontext on hppa. * sysdeps/unix/sysv/linux/hppa/getcontext.S (__getcontext): Save return pointer in frame. * sysdeps/unix/sysv/linux/hppa/setcontext.S (__setcontext): Likewise. Correct offset used to restore PIC register.
* Fix hppa text relocations in libc.soJohn David Anglin2017-09-302-0/+11
| | | | | | [BZ libc/22165] * sysdeps/unix/sysv/linux/hppa/getcontext.S (__getcontext): Use PIC code to load address of __getcontext_ret when generating PIC code.
* Add a test for non-PIE static executableH.J. Lu2017-09-303-1/+12
| | | | | | | | | | | tst-tls1-static-non-pie is built with $(no-pie-ldflag) to make it a non-PIE static executable, regardless if --enable-static-pie is used to configure glibc. * elf/Makefile (tests-static-internal): Add tst-tls1-static-non-pie. (LDFLAGS-tst-tls1-static-non-pie): New. * elf/tst-tls1-static-non-pie.c: New file.
* Use libm_alias_double for some dbl-64 functions.Joseph Myers2017-09-2941-206/+139
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Continuing the move of libm aliases to common macros that can create _FloatN / _FloatNx aliases in future, this patch converts some dbl-64 functions to using libm_alias_double, thereby eliminating the need for some ldbl-opt wrappers. This patch deliberately limits what functions are converted so that it can be verified by comparison of stipped binaries. Specifically, atan and tan are excluded because they first need converting to being weak aliases; fma is omitted as it has additional complications with versions in other directories (removing the ldbl-opt version can e.g. cause the ldbl-128 version to be used instead of dbl-64); and functions that have both dbl-64/wordsize-64 and ldbl-opt versions are excluded because ldbl-opt currently always wraps dbl-64 function versions, so changing those will result in platforms using both ldbl-opt and dbl-64/wordsize-64 (i.e. alpha) starting to use the dbl-64/wordsize-64 versions of those functions (which is good, as an optimization, but still best separated from the present patch to get better validation). Tested for x86_64, and tested with build-many-glibcs.py that installed stripped shared libraries are unchanged by the patch. * sysdeps/ieee754/dbl-64/s_asinh.c: Include <libm-alias-double.h>. (asinh): Define using libm_alias_double. * sysdeps/ieee754/dbl-64/s_cbrt.c: Include <libm-alias-double.h>. (cbrt): Define using libm_alias_double. * sysdeps/ieee754/dbl-64/s_copysign.c: Include <libm-alias-double.h>. (copysign): Define using libm_alias_double. * sysdeps/ieee754/dbl-64/s_erf.c: Include <libm-alias-double.h>. (erf): Define using libm_alias_double. (erfc): Likewise. * sysdeps/ieee754/dbl-64/s_expm1.c: Include <libm-alias-double.h>. (expm1): Define using libm_alias_double. * sysdeps/ieee754/dbl-64/s_fabs.c: Include <libm-alias-double.h>. (fabs): Define using libm_alias_double. * sysdeps/ieee754/dbl-64/s_fromfp.c (fromfp): Define using libm_alias_double. * sysdeps/ieee754/dbl-64/s_fromfp_main.c: Include <libm-alias-double.h>. * sysdeps/ieee754/dbl-64/s_fromfpx.c (fromfpx): Define using libm_alias_double. * sysdeps/ieee754/dbl-64/s_getpayload.c: Include <libm-alias-double.h>. (getpayload): Define using libm_alias_double. * sysdeps/ieee754/dbl-64/s_llrint.c: Include <libm-alias-double.h>. (llrint): Define using libm_alias_double. * sysdeps/ieee754/dbl-64/s_lrint.c: Include <libm-alias-double.h>. (lrint): Define using libm_alias_double. * sysdeps/ieee754/dbl-64/s_nextup.c: Include <libm-alias-double.h>. (nextup): Define using libm_alias_double. * sysdeps/ieee754/dbl-64/s_roundeven.c: Include <libm-alias-double.h>. (roundeven): Define using libm_alias_double. * sysdeps/ieee754/dbl-64/s_setpayload.c (setpayload): Define using libm_alias_double. * sysdeps/ieee754/dbl-64/s_setpayload_main.c: Include <libm-alias-double.h>. * sysdeps/ieee754/dbl-64/s_setpayloadsig.c (setpayloadsig): Define using libm_alias_double. * sysdeps/ieee754/dbl-64/s_sin.c: Include <libm-alias-double.h>. (cos): Define using libm_alias_double. (sin): Likewise. * sysdeps/ieee754/dbl-64/s_sincos.c: Include <libm-alias-double.h>. (sincos): Define using libm_alias_double. * sysdeps/ieee754/dbl-64/s_tanh.c: Include <libm-alias-double.h>. (tanh): Define using libm_alias_double. * sysdeps/ieee754/dbl-64/s_totalorder.c: Include <libm-alias-double.h>. (totalorder): Define using libm_alias_double. * sysdeps/ieee754/dbl-64/s_totalordermag.c: Include <libm-alias-double.h>. (totalordermag): Define using libm_alias_double. * sysdeps/ieee754/dbl-64/s_ufromfp.c (ufromfp): Define using libm_alias_double. * sysdeps/ieee754/dbl-64/s_ufromfpx.c (ufromfpx): Define using libm_alias_double. * sysdeps/ieee754/dbl-64/wordsize-64/s_getpayload.c: Include <libm-alias-double.h>. (getpayload): Define using libm_alias_double. * sysdeps/ieee754/dbl-64/wordsize-64/s_roundeven.c: Include <libm-alias-double.h>. (roundeven): Define using libm_alias_double. * sysdeps/ieee754/dbl-64/wordsize-64/s_setpayload_main.c: Include <libm-alias-double.h>. * sysdeps/ieee754/dbl-64/wordsize-64/s_totalorder.c: Include <libm-alias-double.h>. (totalorder): Define using libm_alias_double. * sysdeps/ieee754/dbl-64/wordsize-64/s_totalordermag.c: Include <libm-alias-double.h>. (totalordermag): Define using libm_alias_double. * sysdeps/ieee754/ldbl-opt/s_copysign.c (copysignl): Only define libc compat symbol here. * sysdeps/ieee754/ldbl-opt/s_asinh.c: Remove file. * sysdeps/ieee754/ldbl-opt/s_cbrt.c: Likewise. * sysdeps/ieee754/ldbl-opt/s_erf.c: Likewise. * sysdeps/ieee754/ldbl-opt/s_expm1.c: Likewise. * sysdeps/ieee754/ldbl-opt/s_fabs.c: Likewise. * sysdeps/ieee754/ldbl-opt/s_llrint.c: Likewise. * sysdeps/ieee754/ldbl-opt/s_lrint.c: Likewise. * sysdeps/ieee754/ldbl-opt/s_sin.c: Likewise. * sysdeps/ieee754/ldbl-opt/s_sincos.c: Likewise. * sysdeps/ieee754/ldbl-opt/s_tanh.c: Likewise.
* arm: Update elf_machine_load_address for static PIEH.J. Lu2017-09-292-1/+18
| | | | | | | | | | When --enable-static-pie is used to configure glibc, we need to use _dl_relocate_static_pie to compute load address in static PIE. * sysdeps/arm/dl-machine.h (elf_machine_load_address): Use _dl_relocate_static_pie instead of _dl_start to compute load address in static PIE. Return 0 if _DYNAMIC is undefined for static executable.
* mips: Update elf_machine_load_address for static PIEH.J. Lu2017-09-292-0/+10
| | | | | | | | | mips uses a local label to compute load address, which works with static PIE. We just need to return 0 if _DYNAMIC is undefined for static executable. * sysdeps/mips/dl-machine.h (elf_machine_dynamic): Return 0 if _DYNAMIC is undefined for static executable.
* arm: Check PIC instead of SHARED in start.SH.J. Lu2017-09-292-2/+6
| | | | | | | Since start.o may be compiled as PIC, we should check PIC instead of SHARED. * sysdeps/arm/start.S (_start): Check PIC instead of SHARED.
* Update x86_64 libm-test-ulps.Joseph Myers2017-09-292-2/+6
| | | | * sysdeps/x86_64/fpu/libm-test-ulps: Update.
* Use fabs(f/l) rather than __fabsWilco Dijkstra2017-09-2913-11/+34
| | | | | | | | | | | | | | | | | | | | | | | | | A few math functions still use __fabs(f/l) rather than fabs, which means they won't be inlined. Rename them so they are inlined. Also add -fno-builtin-fabsl to nofpu powerpc makefile to work around BZ #29253. * sysdeps/ieee754/dbl-64/e_lgamma_r.c (__ieee754_lgamma_r): Use fabs rather than __fabs. * sysdeps/ieee754/dbl-64/e_log10.c (__ieee754_log10): Likewise. * sysdeps/ieee754/dbl-64/e_log2.c (__ieee754_log2): Likewise. * sysdeps/ieee754/flt-32/e_lgammaf_r.c (__ieee754_lgammaf_r): Use fabsf rather than __fabsf. * sysdeps/ieee754/flt-32/e_log10f.c (__ieee754_log10f): Likewise. * sysdeps/ieee754/flt-32/e_log2f.c (__ieee754_log2f): Likewise. * sysdeps/ieee754/ldbl-128/e_lgammal_r.c (__ieee754_lgammal_r): Use fabsl rather than __fabsl. * sysdeps/ieee754/ldbl-128/e_log10l.c (__ieee754_log10l): Likewise. * sysdeps/ieee754/ldbl-128/e_log2l.c (__ieee754_log2l): Likewise. * sysdeps/ieee754/ldbl-128ibm/e_lgammal_r.c (__ieee754_lgammal_r): Use fabsl rather than __fabsl. * sysdeps/ieee754/ldbl-128ibm/e_log10l.c (__ieee754_log10l): Likewise. * sysdeps/ieee754/ldbl-128ibm/e_log2l.c (__ieee754_log2l): Likewise. * sysdeps/powerpc/nofpu/Makefile: Add -fno-builtin-fabsl for BZ #29253.
* Remove old cimag inlinesWilco Dijkstra2017-09-292-30/+6
| | | | | | | | Remove old cimag inlines that are only used in GCC 2.96 or older. * math/bits/cmathcalls.h (cimag): Remove inline. (creal): Remove inline. (conj): Remove inline.
* New generic powfSzabolcs Nagy2017-09-299-201/+281
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | without wrapper on aarch64: powf reciprocal-throughput: 4.2x faster powf latency: 2.6x faster old worst-case error: 1.11 ulp new worst-case error: 0.82 ulp aarch64 .text size: -780 bytes aarch64 .rodata size: +144 bytes powf(x,y) is implemented as exp2(y*log2(x)) with the same algorithms that are used in exp2f and log2f, except that the log2f polynomial is larger for extra precision and its output (and exp2f input) may be scaled by a power of 2 (POWF_SCALE) to simplify the argument reduction step of exp2 (possible when efficient round and convert toint operation is available). The special case handling tries to minimize the checks in the hot path. When the input of exp2_inline is checked, int arithmetics is used as that was faster on the tested aarch64 cores. * math/Makefile (type-float-routines): Add e_powf_log2_data. * sysdeps/ieee754/flt-32/e_powf.c: New implementation. * sysdeps/ieee754/flt-32/e_powf_log2_data.c: New file. * sysdeps/ieee754/flt-32/math_config.h (__powf_log2_data): Define. (issignalingf_inline): Likewise. (POWF_LOG2_TABLE_BITS): Likewise. (POWF_LOG2_POLY_ORDER): Likewise. (POWF_SCALE_BITS): Likewise. (POWF_SCALE): Likewise. * sysdeps/i386/fpu/e_powf_log2_data.c: New file. * sysdeps/ia64/fpu/e_powf_log2_data.c: New file. * sysdeps/m68k/m680x0/fpu/e_powf_log2_data.c: New file.
* New generic log2fSzabolcs Nagy2017-09-299-75/+147
| | | | | | | | | | | | | | | | | | | | | | | Similar to the new logf: double precision arithmetics and a small lookup table is used. The argument reduction step is the same as in the new logf. without wrapper on aarch64: log2f reciprocal-throughput: 2.3x faster log2f latency: 2.1x faster old worst case error: 1.72 ulp new worst case error: 0.75 ulp aarch64 .text size: -252 bytes aarch64 .rodata size: +244 bytes * math/Makefile (type-float-routines): Add e_log2f_data. * sysdeps/ieee754/flt-32/e_log2f.c: New implementation. * sysdeps/ieee754/flt-32/e_log2f_data.c: New file. * sysdeps/ieee754/flt-32/math_config.h (__log2f_data): Define. (LOG2F_TABLE_BITS, LOG2F_POLY_ORDER): Define. * sysdeps/i386/fpu/e_log2f_data.c: New file. * sysdeps/ia64/fpu/e_log2f_data.c: New file. * sysdeps/m68k/m680x0/fpu/e_log2f_data.c: New file.
* missed ChangeLog entrySzabolcs Nagy2017-09-291-0/+11
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* New generic logfSzabolcs Nagy2017-09-298-75/+136
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | without wrapper on aarch64: logf reciprocal-throughput: 2.2x faster logf latency: 1.9x faster old worst case error: 0.89 ulp new worst case error: 0.82 ulp aarch64 .text size: -356 bytes aarch64 .rodata size: +240 bytes Uses double precision arithmetics and a lookup table to allow smaller polynomial and avoid the use of division. Data is in a separate translation unit with fixed layout to prevent the compiler generating suboptimal literal access. Errors are handled inline according to POSIX rules, but this patch keeps the wrapper with SVID compatible error handling. Needs libm-test-ulps adjustment for clogf in non-nearest rounding mode. * math/Makefile (type-float-routines): Add e_logf_data. * sysdeps/ieee754/flt-32/e_logf.c: New implementation. * sysdeps/ieee754/flt-32/e_logf_data.c: New file. * sysdeps/ieee754/flt-32/math_config.h (__logf_data): Define. (LOGF_TABLE_BITS, LOGF_POLY_ORDER): Define. * sysdeps/i386/fpu/e_logf_data.c: New file. * sysdeps/ia64/fpu/e_logf_data.c: New file. * sysdeps/m68k/m680x0/fpu/e_logf_data.c: New file.
* x86: Allow undefined _DYNAMIC in static executableH.J. Lu2017-09-283-4/+25
| | | | | | | | | | | | When --enable-static-pie is used to build static PIE, _DYNAMIC is used to compute the load address of static PIE. But _DYNAMIC is undefined when creating static executable. This patch makes _DYNAMIC weak in PIE libc.a so that it can be undefined. * sysdeps/i386/dl-machine.h (elf_machine_load_address): Allow undefined _DYNAMIC in PIE libc.a. * sysdeps/x86_64/dl-machine.h (elf_machine_load_address): Likewse.
* Remove ancient __signbit inlinesWilco Dijkstra2017-09-2810-436/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | Remove __signbit inlines from mathinline.h. Math.h already uses the builtin when supported, so additional inlines are only used on pre 4.0 GCCs. Similarly remove ancient copysign and fabs inlines. * sysdeps/alpha/fpu/bits/mathinline.h: Delete file. * sysdeps/ia64/fpu/bits/mathinline.h: Delete file. * sysdeps/m68k/coldfire/fpu/bits/mathinline.h: Delete file. * sysdeps/m68k/m680x0/fpu/bits/mathinline.h: (__signbitf): Remove. (__signbit): Remove. (__signbitl): Remove. * sysdeps/powerpc/bits/mathinline.h (__signbitf): Remove. (__signbit): Remove. (__signbitl): Remove. * sysdeps/s390/fpu/bits/mathinline.h: (__signbitf): Remove. (__signbit): Remove. (__signbitl): Remove * sysdeps/sparc/fpu/bits/mathinline.h (__signbitf): Remove. (__signbit): Remove. (__signbitl): Remove. * sysdeps/tile/bits/mathinline.h: Delete file. * sysdeps/x86/fpu/bits/mathinline.h (__signbitf): Remove. (__signbit): Remove. (__signbitl): Remove.
* Simplify C99 isgreater macrosWilco Dijkstra2017-09-287-349/+41
| | | | | | | | | | | | | | | | Simplify the C99 isgreater macros. Although some support was added in GCC 2.97, not all targets added support until GCC 3.1. Therefore only use the builtins in math.h from GCC 3.1 onwards, and defer to generic macros otherwise. Improve the generic isunordered macro to use compares rather than call fpclassify twice - this is not only faster but also correct for signaling NaNs. * math/math.h: Improve handling of C99 isgreater macros. * sysdeps/alpha/fpu/bits/mathinline.h: Remove isgreater macros. * sysdeps/m68k/m680x0/fpu/bits/mathinline.h: Likewise. * sysdeps/powerpc/bits/mathinline.h: Likewise. * sysdeps/sparc/fpu/bits/mathinline.h: Likewise. * sysdeps/x86/fpu/bits/mathinline.h: Likewise.
* AArch64: update libm-test-ulpsSzabolcs Nagy2017-09-282-2/+12
| | | | | | Update for new expf and logf. * sysdeps/aarch64/libm-test-ulps: Update.
* Fix nearbyint arithmetic moved before feholdexcept (bug 22225).Joseph Myers2017-09-285-10/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In <https://sourceware.org/ml/libc-alpha/2013-05/msg00722.html> I remarked on the possibility of arithmetic in various nearbyint implementations being scheduled before feholdexcept calls, resulting in spurious "inexact" exceptions. I'm now actually observing this occurring in glibc built for ARM with GCC 7 (in fact, both copies of the same addition/subtraction sequence being combined and moved out before the conditionals and feholdexcept/fesetenv pairs), resulting in test failures. This patch makes the nearbyint implementations with this particular feholdexcept / arithmetic / fesetenv pattern consistently use math_opt_barrier on the function argument when first used in arithmetic, and also consistently use math_force_eval before fesetenv (the latter was generally already done, but the dbl-64/wordsize-64 implementation used math_opt_barrier instead, and as math_opt_barrier's intended effect is through its output value being used, such a use that doesn't use the return value is suspect). Tested for x86_64 (--disable-multi-arch so more of these implementations get used), and for ARM in a configuration where I saw the problem scheduling. [BZ #22225] * sysdeps/ieee754/dbl-64/s_nearbyint.c (__nearbyint): Use math_opt_barrier on argument when doing arithmetic on it. * sysdeps/ieee754/dbl-64/wordsize-64/s_nearbyint.c (__nearbyint): Likewise. Use math_force_eval not math_opt_barrier after arithmetic. * sysdeps/ieee754/flt-32/s_nearbyintf.c (__nearbyintf): Use math_opt_barrier on argument when doing arithmetic on it. * sysdeps/ieee754/ldbl-128/s_nearbyintl.c (__nearbyintl): Likewise.
* Update sysdeps/unix/sysv/linux/ifaddrs.cH.J. Lu2017-09-272-0/+8
| | | | | | | | | | | | | | | | | | | | | | Fix ../sysdeps/unix/sysv/linux/ifaddrs.c:835:27: error: ‘getifaddrs’ aliased to undefined symbol ‘__getifaddrs’ weak_alias (__getifaddrs, getifaddrs) ^ ../sysdeps/unix/sysv/linux/ifaddrs.c:844:28: error: ‘freeifaddrs’ aliased to undefined symbol ‘__freeifaddrs’ weak_alias (__freeifaddrs, freeifaddrs) caused by commit 4009ddc69225d571772aaea597615a0c032e14ab Author: Samuel Thibault <samuel.thibault@ens-lyon.org> Date: Thu Sep 28 00:19:18 2017 +0200 hurd: Fix `getifaddrs' and `freeifaddrs' symbol exposition * sysdeps/unix/sysv/linux/ifaddrs.c (__getifaddrs): Add libc_hidden_def. (__freeifaddrs): Likewise.
* hurd: Fix `getifaddrs' and `freeifaddrs' symbol expositionSamuel Thibault2017-09-285-2/+18
| | | | | | | | | | | | | | | from `freeaddrinfo'. `getifaddrs' and `freeifaddrs' are not in POSIX, they should not be exposed along `freeaddrinfo' (through `__check_pf') which is POSIX. * include/ifaddrs.h (__getifaddrs, __freeifaddrs): New declarations, and use libc_hidden_def on them. * inet/ifaddrs.c (__getifaddrs, __freeifaddrs): Use libc_hidden_def on them. * sysdeps/gnu/ifaddrs.c (__getifaddrs, __freeifaddrs): Likewise. * inet/check_pf.c (__check_pf): Use __getifaddrs and __freeifaddrs instead of getifaddrs and freeifaddrs.
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