They are both used by __libc_freeres to free all library malloc
allocated resources to help tooling like mtrace or valgrind with
memory leak tracking.
The current scheme uses assembly markers and linker script entries
to consolidate the free routine function pointers in the RELRO segment
and to be freed buffers in BSS.
This patch changes it to use specific free functions for
libc_freeres_ptrs buffers and call the function pointer array directly
with call_function_static_weak.
It allows the removal of both the internal macros and the linker
script sections.
Checked on x86_64-linux-gnu, i686-linux-gnu, and aarch64-linux-gnu.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
We can call the cleanup functions directly from _nl_unload_locale
if we pass the category to it.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
I used these shell commands:
../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")
and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 7061 files FOO.
I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah. I don't
know why I run into these diagnostics whereas others evidently do not.
remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
I used these shell commands:
../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")
and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
Among the warnings causing a glibc build with GCC 11 to fail is one
for a call new_composite_name in setlocale.c. The newnames argument
is declared as an array with __LC_LAST elements, but when the category
argument is not LC_ALL, it actually only has one element. Since the
number of elements depends on the first argument to the function, it
seems clearer to declare the argument as a pointer.
Tested with build-many-glibcs.py for arm-linux-gnueabi, where this
allows the build to get further.
Reviewed-by: DJ Delorie <dj@redhat.com>
calls with constant strings shows a small (~10%) performance gain, strdup is
typically used in error reporting code, so not performance critical.
Remove the now unused __need_malloc_and_calloc related defines from stdlib.h.
Rename existing uses of str(n)dup to __str(n)dup so it no longer needs to be
redirected to a builtin. Also building GLIBC with -Os now no longer shows
localplt or linkname space failures (partial fix for BZ #15105 and BZ #19463).
[BZ #15105]
[BZ #19463]
* elf/dl-cache.c (_dl_load_cache_lookup): Use __strdup.
* inet/rcmd.c (rcmd_af): Likewise.
* inet/rexec.c (rexec_af): Likewise.
* intl/dcigettext.c (_LIBC): Likewise.
* intl/finddomain.c (_nl_find_domain): Use strdup expansion.
* locale/loadarchive.c (_nl_load_locale_from_archive): Use __strdup.
* locale/setlocale.c (setlocale): Likewise.
* posix/spawn_faction_addopen.c
(posix_spawn_file_actions_addopen): Likewise.
* stdlib/putenv.c (putenv): Use __strndup.
* sunrpc/svc_simple.c (__registerrpc): Use __strdup.
* sysdeps/posix/getaddrinfo.c (gaih_inet): Use __strdup/__strndup.
* include/stdlib.h (__need_malloc_and_calloc): Remove uses.
(__Need_M_And_C) Remove define/undef.
* stdlib/stdlib.h (__need_malloc_and_calloc): Remove uses.
(__malloc_and_calloc_defined): Remove define.
* string/bits/string2.h (__strdup): Remove define.
(strdup): Likewise.
(__strndup): Likewise.
(strndup): Likewise.
2008-03-30 Ulrich Drepper <drepper@redhat.com>
[BZ #5443]
* intl/dcigettext.c (__dcigettext): Get reader lock for locale data
before looking for translation.
* locale/duplocale.c: Transform __libc_setlocale_lock into rwlock.
* locale/freelocale.c: Likewise.
* locale/newlocale.c: Likewise.
* locale/setlocale.c: Likewise.
Based partially on a patch by ryo@np.css.fujitsu.com.
* locale/xlocale.c: Revert changes putting _nl_global_locale here.
This file again just defines _nl_C_locobj.
(_nl_C_locobj): Use a categories.def iterator in the initializer.
* locale/global-locale.c: New file. Define _nl_global_locale here,
using all weak references in the initializer.
* locale/Makefile (aux): Add global-locale.
* locale/localeinfo.h (_nl_global_locale, _NL_CURRENT_LOCALE): Make
these unconditional, along with the tsd decl.
[!SHARED && HAVE___THREAD && HAVE_WEAK_SYMBOLS] (NL_CURRENT_INDIRECT):
Define it under these conditions.
[NL_CURRENT_INDIRECT]: Test this instead of [! SHARED].
Don't declare _nl_current. Declare _nl_current_LC_FOO as
`extern __thread struct locale_data *const *'.
[NL_CURRENT_INDIRECT]
(_NL_CURRENT_DATA, _NL_CURRENT, _NL_CURRENT_WSTR): Add indirection.
[NL_CURRENT_INDIRECT] (_NL_CURRENT_DEFINE): Rewritten. Define
the thread variable _nl_current_LC_FOO and also a special absolute
symbol _nl_current_LC_FOO_used.
* locale/uselocale.c (__uselocale) [NL_CURRENT_INDIRECT]:
Set each _nl_current_LC_FOO symbol to point into the new locale,
using weak references to test if _nl_current_LC_FOO_used was linked in.
* locale/setlocale.c [! SHARED]: Replace this conditional ...
[NL_CURRENT_INDIRECT]: ... with this one.
(_nl_current, _nl_C): Variables removed.
[NL_CURRENT_INDIRECT] (_nl_current_used): New variable, table of
weak references to _nl_current_LC_FOO_used.
[NL_CURRENT_INDIRECT] (CATEGORY_USED): Define using that table.
(free_category): New function, broken out of ...
(free_mem): ... here. Call that.
(free_mem) [NL_CURRENT_INDIRECT]: Use a categories.def iterator
instead of a loop.
__USING_NAMESPACE_C99 depending on _GLIBCPP_USE_NAMESPACES.
name to find codeset name (if any) and normalize it. If the
normalized name differs, look up only that in the archive.
* locale/programs/locarchive.c (add_locale_to_archive): If the name
contains a codeset, normalize the codeset store only the normalized
name in the archive. If not, add an alias containing the locale's
normalized codeset name. Apply codeset name normalization when
matching entries in the alias file.
* locale/programs/locarchive.c (delete_locales_from_archive): Don't
decrement HEAD->namehash_used here.
(add_locale): Only need to insert name string when name_offset != 0.
* locale/programs/localedef.c (options): Add -A/--alias-file.
(alias_file): New variable.
(parse_opt): Grok -A, set that.
* locale/programs/localedef.h: Declare it.
* locale/programs/locarchive.c (insert_name): New function, broken out
of ...
(add_locale_to_archive): ... here. Call that.
(add_alias): New function.
(add_locale): New static function, add_locale_to_archive renamed.
(add_locale_to_archive): Call that and use add_alias to add an alias
for the name with codeset if the given name lacks it.
(enlarge_archive): Call add_locale instead of add_locale_to_archive.
* locale/Makefile (routines): Add loadarchive.
* locale/loadarchive.c: New file, started from code by Ulrich Drepper.
(_nl_load_locale_from_archive): New function.
* locale/localeinfo.h: Declare it.
* locale/findlocale.c (_nl_find_locale): If using default locale path,
try _nl_load_locale_from_archive first.
* locale/loadlocale.c (_nl_intern_locale_data): New function,
broken out of _nl_load_locale.
(_nl_load_locale): Call that.
* locale/localeinfo.h: Declare it.
(struct locale_data): Replace member `mmaped' with `alloc', an enum.
(struct locale_data): Remove unused member `options'.
* locale/findlocale.c (_nl_remove_locale): Update uses.
* locale/loadlocale.c (_nl_load_locale, _nl_unload_locale): Likewise.
* locale/C-collate.c: Update initializer.
* locale/C-identification.c: Likewise.
* locale/C-measurement.c: Likewise.
* locale/C-telephone.c: Likewise.
* locale/C-address.c: Likewise.
* locale/C-name.c: Likewise.
* locale/C-paper.c: Likewise.
* locale/C-time.c: Likewise.
* locale/C-numeric.c: Likewise.
* locale/C-monetary.c: Likewise.
* locale/C-messages.c : Likewise.
* locale/C-ctype.c: Likewise.
* locale/hashval.h [! LONGBITS]: Include <limits.h> here and
use CHAR_BIT instead of BITSPERBYTE.
* locale/localeinfo.h (_nl_find_locale, _nl_load_locale,
_nl_unload_locale): Add `internal_function attribute_hidden' to decls.
* locale/findlocale.c (_nl_find_locale): Add internal_function to defn.
(_nl_remove_locale): Likewise.
* locale/loadlocale.c (_nl_load_locale, _nl_unload_locale): Likewise.
* locale/findlocale.c (_nl_default_locale_path): New variable.
(_nl_find_locale): If LOCALE_PATH is null, default to that.
* locale/localeinfo.h: Declare it.
* locale/setlocale.c (setlocale): Use _nl_default_locale_path
in place of LOCALEDIR. If no LOCPATH, pass null to _nl_find_locale.
* locale/newlocale.c (__newlocale): Likewise.
* misc/err.c (vwarnx, vwarn): Fix typos in libc_hidden_def uses.
* inet/rexec.c (rexec_af): Add libc_hidden_def.
* sysdeps/generic/morecore.c: Likewise.
* signal/allocrtsig.c (__libc_current_sigrtmin): Likewise.
(__libc_current_sigrtmax): Likewise.
2002-08-08 Roland McGrath <roland@redhat.com>
* locale/loadlocale.c (_nl_load_locale): Don't use MAP_INHERIT.
* catgets/open_catalog.c (__open_catalog): Likewise.
* locale/programs/locarchive.c (INITIAL_NUM_NAMES): Renamed
from typo INITIAL_NUM_NANES.
(create_archive): Update use.
* locale/localename.c (_nl_current_names): ... here, new file.
Make it global, with attribute_hidden.
* locale/localeinfo.h: Declare it.
* locale/Makefile (aux): Add localename.
* locale/localename.c (__current_locale_name): New function.
* include/locale.h (__current_locale_name): Declare it.
* intl/dcigettext.c (guess_category_value): Use that instead of
calling setlocale.
* locale/locale.h [__USE_GNU] (locale_t): New type alias of __locale_t.
[__USE_GNU] (newlocale, duplocale, freelocale, uselocale): New decls.
[__USE_GNU] (LC_GLOBAL_LOCALE): New macro.
* locale/newlocale.c: Add alias to __ name.
* locale/duplocale.c: Likewise.
* locale/freelocale.c: Likewise.
* locale/uselocale.c: New file.
* locale/Makefile (routines): Add it.
* locale/Versions (libc: GLIBC_2.3): New set.
Add newlocale, duplocale, freelocale, uselocale.
(libc: GLIBC_PRIVATE): Add __uselocale.
* locale/localeinfo.h [SHARED]
(_NL_CURRENT_LOCALE): New macro, defined to fetch a tsd value.
(_NL_CURRENT_DATA): Define using that.
(_NL_CURRENT, _NL_CURRENT_WSTR, _NL_CURRENT_WORD): Define using that.
(_NL_CURRENT_DEFINE): Define to empty.
[! SHARED]: Decls of _nl_current_CATEGORY and _nl_current
conditionalized on this.
* locale/xlocale.c (NL_C_INTIIALIZER): New macro,
taking initializer of _nl_C_locobj.
[SHARED] (_nl_global_locale): New variable, using that initializer.
(_nl_C_locobj): Use new macro for initialzier.
* locale/setlocale.c [! SHARED] (_nl_current): Conditionalize on this.
[! SHARED] (CATEGORY_USED): New macro.
[SHARED] (CATEGORY_USED, _nl_C): New macros.
(setdata, setlocale): Use that macro instead of examining _nl_current.
(setdata): Set the slot in _nl_global_locale.
Conditionalize setting of _nl_current on [! SHARED].
* locale/findlocale.c [SHARED] (_nl_C): Define as a macro instead of
declaration as an extern.
* locale/newlocale.c (__newlocale): Use _nl_C_locobj instead of _nl_C.
* include/locale.h: Use libc_hidden_proto for setlocale.
* locale/setlocale.c: Add libc_hidden_def.
* locale/setlocale.c (free_mem): Use _NL_CURRENT_DATA.
2001-07-06 Paul Eggert <eggert@twinsun.com>
* manual/argp.texi: Remove ignored LGPL copyright notice; it's
not appropriate for documentation anyway.
* manual/libc-texinfo.sh: "Library General Public License" ->
"Lesser General Public License".
2001-07-06 Andreas Jaeger <aj@suse.de>
* All files under GPL/LGPL version 2: Place under LGPL version
2.1.
2000-11-29 H.J. Lu <hjl@gnu.org>
* stdio-common/vfscanf.c (ORIENT): Swap the COMPILE_WSCANF case.
2000-11-30 Jakub Jelinek <jakub@redhat.com>
* locale/setlocale.c (setname): Free for all categories, not just
LC_ALL.
(setlocale): Store a copy of string passed by user, not the string
itself.
* sysdeps/unix/sysv/linux/hppa/brk.c (__brk): Remove unused variable.
