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84 Commits

Author SHA1 Message Date
Joseph Myers
6d7e8eda9b Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
Paul Eggert
581c785bf3 Update copyright dates with scripts/update-copyrights 
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
 2022-01-01 11:40:24 -08:00
Siddhesh Poyarekar
30891f35fa Remove "Contributed by" lines 
We stopped adding "Contributed by" or similar lines in sources in 2012
in favour of git logs and keeping the Contributors section of the
glibc manual up to date.  Removing these lines makes the license
header a bit more consistent across files and also removes the
possibility of error in attribution when license blocks or files are
copied across since the contributed-by lines don't actually reflect
reality in those cases.

Move all "Contributed by" and similar lines (Written by, Test by,
etc.) into a new file CONTRIBUTED-BY to retain record of these
contributions.  These contributors are also mentioned in
manual/contrib.texi, so we just maintain this additional record as a
courtesy to the earlier developers.

The following scripts were used to filter a list of files to edit in
place and to clean up the CONTRIBUTED-BY file respectively.  These
were not added to the glibc sources because they're not expected to be
of any use in future given that this is a one time task:

https://gist.github.com/siddhesh/b5ecac94eabfd72ed2916d6d8157e7dc
https://gist.github.com/siddhesh/15ea1f5e435ace9774f485030695ee02

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
 2021-09-03 22:06:44 +05:30
Siddhesh Poyarekar
9dad716d4d mtrace: Wean away from malloc hooks 
Wean mtrace away from the malloc hooks and move them into the debug
DSO.  Split the API away from the implementation so that we can add
the API to libc.so as well as libc_malloc_debug.so, with the libc
implementations being empty.

Update localplt data since memalign no longer has any callers after
this change.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
 2021-07-22 18:38:06 +05:30
Siddhesh Poyarekar
2d2d9f2b48 Move malloc hooks into a compat DSO 
Remove all malloc hook uses from core malloc functions and move it
into a new library libc_malloc_debug.so.  With this, the hooks now no
longer have any effect on the core library.

libc_malloc_debug.so is a malloc interposer that needs to be preloaded
to get hooks functionality back so that the debugging features that
depend on the hooks, i.e. malloc-check, mcheck and mtrace work again.
Without the preloaded DSO these debugging features will be nops.
These features will be ported away from hooks in subsequent patches.

Similarly, legacy applications that need hooks functionality need to
preload libc_malloc_debug.so.

The symbols exported by libc_malloc_debug.so are maintained at exactly
the same version as libc.so.

Finally, static binaries will no longer be able to use malloc
debugging features since they cannot preload the debugging DSO.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
 2021-07-22 18:37:59 +05:30
Florian Weimer
7c241325d6 Force building with -fno-common 
As a result, is not necessary to specify __attribute__ ((nocommon))
on individual definitions.

GCC 10 defaults to -fno-common on all architectures except ARC,
but this change is compatible with older GCC versions and ARC, too.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
 2021-07-09 20:09:14 +02:00
Tulio Magno Quites Machado Filho
e766ce3088 mtrace: Add attribute nocommon to mallwatch 
Avoid compilation errors GCC versions that do not default to
-fno-common, e.g. GCC <= 9.

Fixes commit 00d28960c5 ("mtrace:
Deprecate mallwatch and tr_break").

Suggested-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Suggested-by: Florian Weimer <fweimer@redhat.com>
 2021-07-02 18:14:01 -03:00
Siddhesh Poyarekar
00d28960c5 mtrace: Deprecate mallwatch and tr_break 
The variable and function pair appear to provide a way for users to
set conditional breakpoints in mtrace when a specific address is
returned by the allocator.  This can be achieved by using conditional
breakpoints in gdb so it is redundant.  There is no documentation of
this interface in the manual either, so it appears to have been a hack
that got added to debug malloc.  Deprecate these symbols and do not
call tr_break anymore.

Reviewed-by: DJ Delorie <dj@redhat.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
 2021-07-03 00:47:34 +05:30
Paul Eggert
2b778ceb40 Update copyright dates with scripts/update-copyrights 
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
 2021-01-02 12:17:34 -08:00
Joseph Myers
d614a75396 Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
Paul Eggert
5a82c74822 Prefer https to http for gnu.org and fsf.org URLs 
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:

sed -ri '
  s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
  s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
  $(find $(git ls-files) -prune -type f \
      ! -name '*.po' \
      ! -name 'ChangeLog*' \
      ! -path COPYING ! -path COPYING.LIB \
      ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
      ! -path manual/texinfo.tex ! -path scripts/config.guess \
      ! -path scripts/config.sub ! -path scripts/install-sh \
      ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
      ! -path INSTALL ! -path  locale/programs/charmap-kw.h \
      ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
      ! '(' -name configure \
            -execdir test -f configure.ac -o -f configure.in ';' ')' \
      ! '(' -name preconfigure \
            -execdir test -f preconfigure.ac ';' ')' \
      -print)

and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:

  chmod a+x sysdeps/unix/sysv/linux/riscv/configure
  # Omit irrelevant whitespace and comment-only changes,
  # perhaps from a slightly-different Autoconf version.
  git checkout -f \
    sysdeps/csky/configure \
    sysdeps/hppa/configure \
    sysdeps/riscv/configure \
    sysdeps/unix/sysv/linux/csky/configure
  # Omit changes that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
  git checkout -f \
    sysdeps/powerpc/powerpc64/ppc-mcount.S \
    sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
  # Omit change that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
  git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
 2019-09-07 02:43:31 -07:00
Carlos O'Donell
e621246ec6 malloc: Set and reset all hooks for tracing (Bug 16573) 
If an error occurs during the tracing operation, particularly during a
call to lock_and_info() which calls _dl_addr, we may end up calling back
into the malloc-subsystem and relock the loader lock and deadlock. For
all intents and purposes the call to _dl_addr can call any of the malloc
family API functions and so we should disable all tracing before calling
such loader functions.  This is similar to the strategy that the new
malloc tracer takes when calling the real malloc, namely that all
tracing ceases at the boundary to the real function and any faults at
that point are the purvue of the library (though the new tracer does
this on a per-thread basis in an MT-safe fashion). Since the new tracer
and the hook deprecation are not yet complete we must fix these issues
where we can.

Tested on x86_64 with no regressions.

Co-authored-by: Kwok Cheung Yeung <kcy@codesourcery.com>
Reviewed-by: DJ Delorie <dj@redhat.com>
 2019-04-09 10:56:51 -04:00
Joseph Myers
04277e02d7 Update copyright dates with scripts/update-copyrights. 
* All files with FSF copyright notices: Update copyright dates
	using scripts/update-copyrights.
	* locale/programs/charmap-kw.h: Regenerated.
	* locale/programs/locfile-kw.h: Likewise.
 2019-01-01 00:11:28 +00:00
Joseph Myers
688903eb3e Update copyright dates with scripts/update-copyrights. 
* All files with FSF copyright notices: Update copyright dates
	using scripts/update-copyrights.
	* locale/programs/charmap-kw.h: Regenerated.
	* locale/programs/locfile-kw.h: Likewise.
 2018-01-01 00:32:25 +00:00
H.J. Lu
825adeeed1 Mark __dso_handle as hidden [BZ #18822] 
Since __dso_handle is always defined by either crtbegin.o from GCC or
dso_handle.c, it should be marked as hidden and be passed directly.

	[BZ #18822]
	* dlfcn/modatexit.c (foo): Remove __dso_handle check.
	* dlfcn/modcxaatexit.c: Include <dso_handle.h>.
	(__dso_handle): Remove declaration.
	* dlfcn/tstatexit.c (__dso_handle): Removed.
	(main): Don't check __dso_handle.
	* dlfcn/tstcxaatexit.c (__dso_handle): Removed.
	(main): Don't check __dso_handle.
	* include/dso_handle.h: New file.
	* malloc/mtrace.c: Include <dso_handle.h>.
	(mtrace): Pass __dso_handle directly.
	* nptl/pthread_atfork.c: Include <dso_handle.h>.
	(__dso_handle): Remove declaration.
	(__pthread_atfork): Pass __dso_handle directly.
	* nptl/tst-atfork2mod.c: Include <dso_handle.h>.
	(__dso_handle): Removed.
	* posix/wordexp-test.c: Include <dso_handle.h>.
	(__dso_handle): Remove declaration.
	(__app_register_atfork): Pass __dso_handle directly.
	* stdlib/at_quick_exit.c: Include <dso_handle.h>.
	(__dso_handle): Remove declaration.
	(at_quick_exit): Pass __dso_handle directly.
	* stdlib/atexit.c: Include <dso_handle.h>.
	(__dso_handle): Remove declaration.
	(atexit): Pass __dso_handle directly.
	* stdlib/tst-tls-atexit-lib.c: Include <dso_handle.h>.
	(__dso_handle): Removed.
 2017-09-26 16:53:44 -07:00
Florian Weimer
0c71122c0c malloc: Remove the internal_function attribute 2017-08-31 15:59:06 +02:00
Joseph Myers
f17a42333f Do not use __ptr_t. 
sys/cdefs.h has a macro __ptr_t, which a few places in glibc use
instead of void *.  void * is a well-understood standard type for that
purpose and in a post-C89 context there is no need for a macro for it;
this patch changes those places to use void * directly instead.

Unlike __long_double_t, __ptr_t is widely used outside glibc (or at
least has many hits on codesearch.debian.net).  I don't know how many
of those uses would break if sys/cdefs.h ceased to define the macro,
but there's enough risk that this patch leaves the definition and just
removes the uses within glibc; removal of the definition can be
considered separately if desired.

Tested for x86_64, and with build-many-glibcs.py.

	* malloc/mcheck.c (old_free_hook): Use void * instead of __ptr_t.
	(old_malloc_hook): Likewise.
	(old_memalign_hook): Likewise.
	(old_realloc_hook): Likewise.
	(struct hdr): Likewise.
	(flood): Likewise.
	(freehook): Likewise.
	(mallochook): Likewise.
	(memalignhook): Likewise.
	(reallochook): Likewise.
	(mprobe): Likewise.
	* malloc/mtrace.c (mallwatch): Likewise.
	(tr_old_free_hook): Likewise.
	(tr_old_malloc_hook): Likewise.
	(tr_old_realloc_hook): Likewise.
	(tr_old_memalign_hook): Likewise.
	(tr_where): Likewise.
	(lock_and_info): Likewise.
	(tr_freehook): Likewise.
	(tr_mallochook): Likewise.
	(tr_reallochook): Likewise.
	(tr_memalignhook): Likewise.
	* misc/err.h [!__GNUC_VA_LIST] (__gnuc_va_list): Likewise.
	* misc/mmap.c (__mmap): Likewise.
	* misc/mmap64.c (__mmap64): Likewise.
	* misc/mprotect.c (__mprotect): Likewise.
	* misc/msync.c (msync): Likewise.
	* misc/munmap.c (__munmap): Likewise.
	* posix/posix_madvise.c (posix_madvise): Likewise.
	* socket/send.c (__send): Likewise.
	* socket/sendto.c (__sendto): Likewise.
	* socket/setsockopt.c (__setsockopt): Likewise.
	* string/memcmp.c (__ptr_t): Remove macro.
	(MEMCMP): Use void * instead of ptr_t.
	* string/memrchr.c (__ptr_t): Remove macro.
	(__memrchr): Use void * instead of ptr_t.
	* sysdeps/mach/hurd/dl-sysdep.c (__mmap): Likewise.
	* sysdeps/mach/hurd/mmap.c (__mmap): Likewise.
	* sysdeps/mach/hurd/mmap64.c (__mmap64): Likewise.
	* sysdeps/mach/mprotect.c (__mprotect): Likewise.
	* sysdeps/mach/msync.c (msync): Likewise.
	* sysdeps/mach/munmap.c (__munmap): Likewise.
	* sysdeps/mips/bits/setjmp.h (struct __jmp_buf_internal_tag):
	Likewise.
	* sysdeps/posix/getcwd.c (__getcwd): Likewise.
	* sysdeps/powerpc/powerpc32/memset.S (memset): Likewise.
	* sysdeps/powerpc/powerpc32/power4/memcpy.S (memcpy): Likewise.
	* sysdeps/powerpc/powerpc32/power4/memset.S (memset): Likewise.
	* sysdeps/powerpc/powerpc32/power6/memcpy.S (memcpy): Likewise.
	* sysdeps/powerpc/powerpc32/power6/memset.S (memset): Likewise.
	* sysdeps/powerpc/powerpc32/power7/memcpy.S (memcpy): Likewise.
	* sysdeps/powerpc/powerpc32/power7/mempcpy.S (__mempcpy):
	Likewise.
	* sysdeps/powerpc/powerpc32/power7/memset.S (memset): Likewise.
	* sysdeps/powerpc/powerpc64/memcpy.S (memcpy): Likewise.
	* sysdeps/powerpc/powerpc64/memset.S (memset): Likewise.
	* sysdeps/powerpc/powerpc64/power4/memcpy.S (memcpy): Likewise.
	* sysdeps/powerpc/powerpc64/power4/memset.S (memset): Likewise.
	* sysdeps/powerpc/powerpc64/power6/memcpy.S (memcpy): Likewise.
	* sysdeps/powerpc/powerpc64/power6/memset.S (memset): Likewise.
	* sysdeps/powerpc/powerpc64/power7/memcpy.S (memcpy): Likewise.
	* sysdeps/powerpc/powerpc64/power7/mempcpy.S (__mempcpy):
	Likewise.
	* sysdeps/powerpc/powerpc64/power7/memset.S (memset): Likewise.
	* sysdeps/powerpc/powerpc64/power8/memset.S (memset): Likewise.
	* sysdeps/tile/memcmp.c (__ptr_t): Remove macro.
	(MEMCMP): Use void * instead of ptr_t.
	* sysdeps/unix/sysv/linux/alpha/oldglob.c (old_glob_t): Likewise.
	* sysdeps/unix/sysv/linux/mmap.c (__mmap): Likewise.
 2017-08-08 17:14:49 +00:00
Florian Weimer
cef9b65376 Assume that O_CLOEXEC is always defined and works 2017-04-18 14:56:51 +02:00
Joseph Myers
bfff8b1bec Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Joseph Myers
f7a9f785e5 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Joseph Myers
ec999b8e5e Move bits/libc-lock.h and bits/libc-lockP.h out of bits/ (bug 14912). 
It was noted in
<https://sourceware.org/ml/libc-alpha/2012-09/msg00305.html> that the
bits/*.h naming scheme should only be used for installed headers.
This patch renames bits/libc-lock.h to plain libc-lock.h and
bits/libc-lockP.h to plain libc-lockP.h to follow that convention.

Note that I don't know where libc-lockP.h comes from for Hurd (the
Hurd libc-lock.h includes libc-lockP.h, but the only libc-lockP.h in
the glibc source tree is for NPTL) - some unmerged patch? - but I
updated the #include in the Hurd libc-lock.h anyway.

Tested for x86_64 (testsuite, and that installed stripped shared
libraries are unchanged by the patch).

	[BZ #14912]
	* bits/libc-lock.h: Move to ...
	* sysdeps/generic/libc-lock.h: ...here.
	(_BITS_LIBC_LOCK_H): Rename macro to _LIBC_LOCK_H.
	* sysdeps/mach/hurd/bits/libc-lock.h: Move to ...
	* sysdeps/mach/hurd/libc-lock.h: ...here.
	(_BITS_LIBC_LOCK_H): Rename macro to _LIBC_LOCK_H.
	[_LIBC]: Include <libc-lockP.h> instead of <bits/libc-lockP.h>.
	* sysdeps/mach/bits/libc-lock.h: Move to ...
	* sysdeps/mach/libc-lock.h: ...here.
	(_BITS_LIBC_LOCK_H): Rename macro to _LIBC_LOCK_H.
	* sysdeps/nptl/bits/libc-lock.h: Move to ...
	* sysdeps/nptl/libc-lock.h: ...here.
	(_BITS_LIBC_LOCK_H): Rename macro to _LIBC_LOCK_H.
	* sysdeps/nptl/bits/libc-lockP.h: Move to ...
	* sysdeps/nptl/libc-lockP.h: ...here.
	(_BITS_LIBC_LOCKP_H): Rename macro to _LIBC_LOCKP_H.
	* crypt/crypt_util.c: Include <libc-lock.h> instead of
	<bits/libc-lock.h>.
	* dirent/scandir-tail.c: Likewise.
	* dlfcn/dlerror.c: Likewise.
	* elf/dl-close.c: Likewise.
	* elf/dl-iteratephdr.c: Likewise.
	* elf/dl-lookup.c: Likewise.
	* elf/dl-open.c: Likewise.
	* elf/dl-support.c: Likewise.
	* elf/dl-writev.h: Likewise.
	* elf/rtld.c: Likewise.
	* grp/fgetgrent.c: Likewise.
	* gshadow/fgetsgent.c: Likewise.
	* gshadow/sgetsgent.c: Likewise.
	* iconv/gconv_conf.c: Likewise.
	* iconv/gconv_db.c: Likewise.
	* iconv/gconv_dl.c: Likewise.
	* iconv/gconv_int.h: Likewise.
	* iconv/gconv_trans.c: Likewise.
	* include/link.h: Likewise.
	* inet/getnameinfo.c: Likewise.
	* inet/getnetgrent.c: Likewise.
	* inet/getnetgrent_r.c: Likewise.
	* intl/bindtextdom.c: Likewise.
	* intl/dcigettext.c: Likewise.
	* intl/finddomain.c: Likewise.
	* intl/gettextP.h: Likewise.
	* intl/loadmsgcat.c: Likewise.
	* intl/localealias.c: Likewise.
	* intl/textdomain.c: Likewise.
	* libidn/idn-stub.c: Likewise.
	* libio/libioP.h: Likewise.
	* locale/duplocale.c: Likewise.
	* locale/freelocale.c: Likewise.
	* locale/newlocale.c: Likewise.
	* locale/setlocale.c: Likewise.
	* login/getutent_r.c: Likewise.
	* login/getutid_r.c: Likewise.
	* login/getutline_r.c: Likewise.
	* login/utmp-private.h: Likewise.
	* login/utmpname.c: Likewise.
	* malloc/mtrace.c: Likewise.
	* misc/efgcvt.c: Likewise.
	* misc/error.c: Likewise.
	* misc/fstab.c: Likewise.
	* misc/getpass.c: Likewise.
	* misc/mntent.c: Likewise.
	* misc/syslog.c: Likewise.
	* nis/nis_call.c: Likewise.
	* nis/nis_callback.c: Likewise.
	* nis/nss-default.c: Likewise.
	* nis/nss_compat/compat-grp.c: Likewise.
	* nis/nss_compat/compat-initgroups.c: Likewise.
	* nis/nss_compat/compat-pwd.c: Likewise.
	* nis/nss_compat/compat-spwd.c: Likewise.
	* nis/nss_nis/nis-alias.c: Likewise.
	* nis/nss_nis/nis-ethers.c: Likewise.
	* nis/nss_nis/nis-grp.c: Likewise.
	* nis/nss_nis/nis-hosts.c: Likewise.
	* nis/nss_nis/nis-network.c: Likewise.
	* nis/nss_nis/nis-proto.c: Likewise.
	* nis/nss_nis/nis-pwd.c: Likewise.
	* nis/nss_nis/nis-rpc.c: Likewise.
	* nis/nss_nis/nis-service.c: Likewise.
	* nis/nss_nis/nis-spwd.c: Likewise.
	* nis/nss_nisplus/nisplus-alias.c: Likewise.
	* nis/nss_nisplus/nisplus-ethers.c: Likewise.
	* nis/nss_nisplus/nisplus-grp.c: Likewise.
	* nis/nss_nisplus/nisplus-hosts.c: Likewise.
	* nis/nss_nisplus/nisplus-initgroups.c: Likewise.
	* nis/nss_nisplus/nisplus-network.c: Likewise.
	* nis/nss_nisplus/nisplus-proto.c: Likewise.
	* nis/nss_nisplus/nisplus-pwd.c: Likewise.
	* nis/nss_nisplus/nisplus-rpc.c: Likewise.
	* nis/nss_nisplus/nisplus-service.c: Likewise.
	* nis/nss_nisplus/nisplus-spwd.c: Likewise.
	* nis/ypclnt.c: Likewise.
	* nptl/libc_pthread_init.c: Likewise.
	* nss/getXXbyYY.c: Likewise.
	* nss/getXXent.c: Likewise.
	* nss/getXXent_r.c: Likewise.
	* nss/nss_db/db-XXX.c: Likewise.
	* nss/nss_db/db-netgrp.c: Likewise.
	* nss/nss_db/nss_db.h: Likewise.
	* nss/nss_files/files-XXX.c: Likewise.
	* nss/nss_files/files-alias.c: Likewise.
	* nss/nsswitch.c: Likewise.
	* posix/regex_internal.h: Likewise.
	* posix/wordexp.c: Likewise.
	* pwd/fgetpwent.c: Likewise.
	* resolv/res_hconf.c: Likewise.
	* resolv/res_libc.c: Likewise.
	* shadow/fgetspent.c: Likewise.
	* shadow/lckpwdf.c: Likewise.
	* shadow/sgetspent.c: Likewise.
	* socket/opensock.c: Likewise.
	* stdio-common/reg-modifier.c: Likewise.
	* stdio-common/reg-printf.c: Likewise.
	* stdio-common/reg-type.c: Likewise.
	* stdio-common/vfprintf.c: Likewise.
	* stdio-common/vfscanf.c: Likewise.
	* stdlib/abort.c: Likewise.
	* stdlib/cxa_atexit.c: Likewise.
	* stdlib/fmtmsg.c: Likewise.
	* stdlib/random.c: Likewise.
	* stdlib/setenv.c: Likewise.
	* string/strsignal.c: Likewise.
	* sunrpc/auth_none.c: Likewise.
	* sunrpc/bindrsvprt.c: Likewise.
	* sunrpc/create_xid.c: Likewise.
	* sunrpc/key_call.c: Likewise.
	* sunrpc/rpc_thread.c: Likewise.
	* sysdeps/arm/backtrace.c: Likewise.
	* sysdeps/generic/ldsodefs.h: Likewise.
	* sysdeps/generic/stdio-lock.h: Likewise.
	* sysdeps/generic/unwind-dw2-fde.c: Likewise.
	* sysdeps/i386/backtrace.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-compat.c: Likewise.
	* sysdeps/m68k/backtrace.c: Likewise.
	* sysdeps/mach/hurd/cthreads.c: Likewise.
	* sysdeps/mach/hurd/dirstream.h: Likewise.
	* sysdeps/mach/hurd/malloc-machine.h: Likewise.
	* sysdeps/nptl/malloc-machine.h: Likewise.
	* sysdeps/nptl/stdio-lock.h: Likewise.
	* sysdeps/posix/dirstream.h: Likewise.
	* sysdeps/posix/getaddrinfo.c: Likewise.
	* sysdeps/posix/system.c: Likewise.
	* sysdeps/pthread/aio_suspend.c: Likewise.
	* sysdeps/s390/s390-32/backtrace.c: Likewise.
	* sysdeps/s390/s390-64/backtrace.c: Likewise.
	* sysdeps/unix/sysv/linux/check_pf.c: Likewise.
	* sysdeps/unix/sysv/linux/if_index.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/getutent_r.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/getutid_r.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/getutline_r.c: Likewise.
	* sysdeps/unix/sysv/linux/shm-directory.c: Likewise.
	* sysdeps/unix/sysv/linux/system.c: Likewise.
	* sysdeps/x86_64/backtrace.c: Likewise.
	* time/alt_digit.c: Likewise.
	* time/era.c: Likewise.
	* time/tzset.c: Likewise.
	* wcsmbs/wcsmbsload.c: Likewise.
	* nptl/tst-initializers1.c (do_test): Refer to <libc-lock.h>
	instead of <bits/libc-lock.h> in comment.
 2015-09-08 21:11:03 +00:00
Joseph Myers
b168057aaa Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
Will Newton
c13a72b7c4 malloc/mtrace.c: Cosmetic cleanup. 
Remove an unused #define and use ANSI prototypes.

Generated code identical on x86_64-unknown-linux-gnu.

ChangeLog:

2014-02-11  Will Newton  <will.newton@linaro.org>

	* malloc/mtrace.c (attribute_hidden): Remove unused macro
	definition.  (tr_where, tr_freehook, tr_mallochook,
	tr_reallochook, tr_memalignhook): Use ANSI protoype.
 2014-02-11 10:02:57 +00:00
Ondřej Bílka
6c8dbf00f5 Reformat malloc to gnu style. 2014-01-02 09:40:10 +01:00
Allan McRae
d4697bc93d Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
Joseph Myers
60d2f8f3c7 Use (void) in no-arguments function definitions. 2013-06-08 00:22:23 +00:00
Joseph Myers
1ba4f03035 Remove __malloc_size_t. 2013-03-08 16:46:07 +00:00
Andreas Schwab
2f5f40f465 mtrace: properly handle realloc (p, 0) 2013-01-03 11:18:04 +01:00
Joseph Myers
568035b787 Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
Pino Toscano
e19af3803b muntrace: reset file and hooks before finalizing the stream 
fclose will call free, invoking its hook, then fprintf which would indirectly
try to allocate a buffer, and this can cause malloc to be used (thus its hook
to be invoked) if libio uses malloc instead of mmap; given any malloc/free hook
locks the internal lock, this leads to a deadlock.

To prevent this hook roundtrip at muntrace, first unset MALLSTREAM and the
hooks, and only after that close the trace file.
 2012-11-19 20:01:00 +01:00
Florian Weimer
84b3fd8407 Rename __secure_getenv to secure_getenv 2012-07-25 19:46:22 +02:00
Andreas Schwab
d18ea0c5e6 Remove use of INTDEF/INTUSE in libio 2012-05-24 23:06:20 +02:00
H.J. Lu
eb96ffb07d Move stdio-common/_itoa.h to sysdeps/generic 2012-03-20 16:00:23 -07:00
Paul Eggert
59ba27a63a Replace FSF snail mail address with URLs. 2012-02-09 23:18:22 +00:00
Ulrich Drepper
a784e50247 Remove pre-ISO C support 
No more __const.
 2012-01-07 23:57:22 -05:00
Ulrich Drepper
4104316861 Optimize tr_freehook 2011-12-22 11:38:32 -05:00
Ulrich Drepper
56e5eb4619 Avoid potential deadlock in mtrace 
The _dl_addr function might have to call malloc which would lead
to a deadlock.  Avoid by calling _dl_addr early.
 2011-05-16 00:58:33 -04:00
Ulrich Drepper
6ce7537960 Remove USE_MTRACE_FILE support from mtrace 2011-05-16 00:22:16 -04:00
Ulrich Drepper
72112b0cb4 * malloc/mtrace.c (mtrace): Use 'e' flag in fopen call. Drop 
F_SETFD use if we know fopen set the flag.
 2008-07-26 22:43:16 +00:00
Ulrich Drepper
7fbc8784bd * stdio-common/_itoa.h: Define _itoa and _fitoa for 64-bit platforms. 
* malloc/mtrace.c: Revert last change.
	* posix/wordexp.c: Likewise.
 2007-01-25 00:45:00 +00:00
Ulrich Drepper
765bbb24bd * stdio-common/_itowa.c: Don't compile _itowa for 64-bit 
platforms.
	* stdio-common/_itoa.c: Don't compile in _itoa and _fitoa for
	64-bit platforms.
	* malloc/mtrace.c (tr_where): Use _fitoa_word instead of _fitoa if
	possible.
	* posix/wordexp.c (parse_arith): Use _itoa_word instead of _itoa
	if possible.
 2007-01-22 21:21:52 +00:00
Ulrich Drepper
a334319f65 (CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4. 2004-12-22 20:10:10 +00:00
Jakub Jelinek
0ecb606cb6 2.5-18.1 2007-07-12 18:26:36 +00:00
Ulrich Drepper
79937577d1 Update. 
2004-09-13  Ulrich Drepper  <drepper@redhat.com>

	* misc/sys/cdefs.h: Restore old definition of __P.
	* csu/munch.awk: Remove uses of __P and __PMT.
	* gmon/gmon.c: Likewise.
	* hesiod/hesiod.h: Likewise.
	* include/stdio.h: Likewise.
	* io/fts.c: Likewise.
	* libio/genops.c: Likewise.
	* libio/libioP.h: Likewise.
	* libio/fileops.c: Likewise.
	* libio/iolibio.h: Likewise.
	* libio/libio.h: Likewise.
	* libio/memstream.c: Likewise.
	* libio/oldfileops.c: Likewise.
	* libio/oldstdfiles.c: Likewise.
	* libio/iopopen.c: Likewise.
	* libio/vsnprintf.c: Likewise.
	* libio/vswprintf.c: Likewise.
	* libio/wgenops.c: Likewise.
	* libio/oldiopopen.c: Likewise.
	* locale/programs/xmalloc.c: Likewise.
	* locale/programs/xstrdup.c: Likewise.
	* malloc/mtrace.c: Likewise.
	* misc/getttyent.c: Likewise.
	* misc/getusershell.c: Likewise.
	* nis/rpcsvc/ypupd.h: Likewise.
	* posix/fnmatch.h: Likewise.
	* posix/glob.h: Likewise.
	* resolv/arpa/nameser.h: Likewise.
	* resolv/gethnamaddr.c: Likewise.
	* resolv/resolv.h: Likewise.
	* resolv/inet_net_ntop.c: Likewise.
	* resolv/inet_net_pton.c: Likewise.
	* resolv/res_init.c: Likewise.
	* resolv/nss_dns/dns-network.c: Likewise.
	* stdio-common/vfprintf.c: Likewise.
	* stdio-common/reg-printf.c: Likewise.
	* sysdeps/generic/chflags.c: Likewise.
	* sysdeps/generic/fchflags.c: Likewise.
	* sysdeps/generic/glob.c: Likewise.
	* sysdeps/generic/printf_fphex.c: Likewise.
	* sysdeps/generic/memcmp.c: Likewise.
	* sysdeps/generic/memcopy.h: Likewise.
	* sysdeps/generic/morecore.c: Likewise.
	* sysdeps/generic/sstk.c: Likewise.
	* sysdeps/posix/sigvec.c: Likewise.
	* sysdeps/posix/ttyname_r.c: Likewise.
	* sysdeps/standalone/arm/bits/errno.h: Likewise.
	* sysdeps/standalone/standalone.h: Likewise.
	* sysdeps/standalone/i386/force_cpu386/brdinit.c: Likewise.
	* sysdeps/standalone/i386/force_cpu386/_exit.c: Likewise.
	* sysdeps/unix/arm/start.c: Likewise.
	* sysdeps/unix/bsd/sigaction.c: Likewise.
	* sysdeps/unix/bsd/sun/m68k/sigtramp.c: Likewise.
	* sysdeps/unix/bsd/sun/sparc/sigtramp.c: Likewise.
	* sysdeps/unix/bsd/sun/sunos4/wait4.c: Likewise.
	* sysdeps/unix/bsd/ultrix4/mips/sigvec.c: Likewise.
	* sysdeps/unix/bsd/ultrix4/sysconf.c: Likewise.
	* sysdeps/unix/sparc/start.c: Likewise.
	* sysdeps/unix/sysv/getdents.c: Likewise.
	* sysdeps/unix/sysv/irix4/fpathconf.c: Likewise.
	* sysdeps/unix/sysv/irix4/getgroups.c: Likewise.
	* sysdeps/unix/sysv/irix4/getpriority.c: Likewise.
	* sysdeps/unix/sysv/irix4/getrusage.c: Likewise.
	* sysdeps/unix/sysv/irix4/pathconf.c: Likewise.
	* sysdeps/unix/sysv/irix4/setgroups.c: Likewise.
	* sysdeps/unix/sysv/irix4/sigtramp.c: Likewise.
	* sysdeps/unix/sysv/irix4/start.c: Likewise.
	* sysdeps/unix/sysv/irix4/sysconf.c: Likewise.
	* sysdeps/unix/sysv/sco3.2.4/__setpgid.c: Likewise.
	* sysdeps/unix/sysv/sco3.2.4/getgroups.c: Likewise.
	* sysdeps/unix/sysv/sysv4/__getpgid.c: Likewise.
	* sysdeps/unix/sysv/sysv4/__setpgid.c: Likewise.
	* sysdeps/unix/sysv/sysv4/getpgid.c: Likewise.
	* sysdeps/unix/sysv/sysv4/setpgid.c: Likewise.
	* sysdeps/unix/sysv/sysv4/sethostname.c: Likewise.
	* sysdeps/unix/sysv/sysv4/setsid.c: Likewise.
	* sysdeps/unix/sysv/sysv4/sysconf.c: Likewise.
	* sysdeps/unix/sysv/sysv4/waitpid.c: Likewise.
	* sysdeps/unix/sysv/sysv4/solaris2/getdents.c: Likewise.
	* time/tzset.c: Likewise.
	* time/strftime_l.c: Likewise.
	* time/strptime_l.c: Likewise.
	* crypt/md5.h: Likewise.
 2004-09-14 04:41:35 +00:00
Ulrich Drepper
06d6611aac Update. 
2004-09-08  Ulrich Drepper  <drepper@redhat.com>

	* malloc/arena.c: Remove __MALLOC_P uses.
	* malloc/malloc.c: Likewise.

	* malloc/mtrace.c: Remove __P uses.
	* malloc/mcheck-init.c: Likewise.
 2004-09-08 08:12:39 +00:00
Ulrich Drepper
e796f92f68 Update. 
2003-12-17  Jakub Jelinek  <jakub@redhat.com>

	* malloc/mtrace.c (tr_old_memalign_hook): New variable.
	(tr_memalignhook): New function.
	(mtrace): Register tr_memalignhook.
	(muntrace): Deregister tr_memalignhook.
	* malloc/malloc.c (__posix_memalign): If __memalign_hook != NULL,
	call it directly instead of memalign_internal.

2003-12-17  Ulrich Drepper  <drepper@redhat.com>

	* misc/mntent_r.c: Change encoding to match recently change decoder.
	Patch by Alexander Achenbach <xela@slit.de>.

2003-12-16  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h: Correct definition of
	vrregset_t.

2003-12-16  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/unix/sysv/linux/powerpc/sys/procfs.h [!__PPC64_ELF_H]: Extent
	conditional to include typedef elf_vrreg_t.

2002-12-17  Paolo Bonzini  <bonzini@gnu.org>

	* posix/regexec.c (re_search_internal): Limit search to the
	beginning of the buffer if the initial states are empty for
	contexts that do not include CONTEXT_BEGBUF or, if
	!preg->newline_anchor, that do not include any one of
	CONTEXT_BEGBUF and CONTEXT_NEWLINE.
 2003-12-17 23:52:56 +00:00
Ulrich Drepper
ee8449f729 Update. 
2003-09-04  Ulrich Drepper  <drepper@redhat.com>

	* libio/libio.h: Define _IO_FLAGS2_NOTCANCEL.
	* libio/fileops.c [_LIBC]: Remove close macro.
	(_IO_file_open): If _IO_FLAGS2_NOTCANCEL is set, use open_not_cancel.
	(_IO_new_file_open): Recognize 'c' flag in mode string.
	(_IO_file_read): If _IO_FLAGS2_NOTCANCEL is set use read_not_cancel.
	(_IO_new_file_write): If _IO_FLAGS2_NOTCANCEL is set use
	write_not_cancel.
	* iconv/gconv_conf.c: Use fopen with 'c' mode flag.
	* inet/rcmd.c: Likewise.
	* inet/ruserpass.c: Likewise.
	* intl/localealias.c: Likewise.
	* malloc/mtrace.c: Likewise.
	* misc/getpass.c: Likewise.
	* misc/getttyent.c: Likewise.
	* misc/mntent_r.c: Likewise.
	* misc/getusershell.c: Likewise.
	* nss/nsswitch.c: Likewise.
	* resolv/res_hconf.c: Likewise.
	* resolv/res_init.c: Likewise.
	* sysdeps/unix/sysv/linux/getsysstats.c: Likewise.
	* time/getdate.c: Likewise.
	* time/tzfile.c: Likewise.
	* misc/fstab.h: Undo last change.
	* misc/mntent.h: Likewise.
	* misc/Makefile: Remove CFLAGS-mntent_r.c, CFLAGS-mntent.c, and
	CFLAGS-fstab.c definition.

2003-09-04  Jakub Jelinek  <jakub@redhat.com>
2003-09-03  Ulrich Drepper  <drepper@redhat.com>
 2003-09-04 08:27:37 +00:00
Roland McGrath
8dd569934c 2003-03-10 Roland McGrath <roland@redhat.com> 
* dlfcn/Makefile (libdl-routines): Add dladdr1.
	* dlfcn/dladdr1.c: New file.
	* dlfcn/dlfcn.h [__USE_GNU]: Declare dladdr1.
	[__USE_GNU] (RTLD_DL_SYMENT, RTLD_DL_LINKMAP): New enum constants.
	* elf/dl-addr.c (_dl_addr): Take new args, a struct link_map ** and
	a const ElfNN_Sym ** to fill in.
	* include/dlfcn.h: Update decl.  Include <link.h>.
	* dlfcn/dladdr.c (dladdr): Update caller.
	* malloc/mtrace.c (tr_where): Likewise.
	* sysdeps/generic/elf/backtracesyms.c: Likewise.
	* sysdeps/generic/elf/backtracesymsfd.c: Likewise.
	* dlfcn/Versions (libdl: GLIBC_2.3.3): New set, add dladdr1.
	* Versions.def (libdl): Define GLIBC_2.3.3 set.
 2003-03-10 09:12:11 +00:00
Ulrich Drepper
ee2a5ae875 Update. 
2002-12-31  Ulrich Drepper  <drepper@redhat.com>

	* string/string-inlines.c: Define __memcpy_g and __strchr_g macros
	to avoid using the exported symbols.  Define aliases with the
	original names separately.

	* include/time.h: Add libc_hidden_proto for __strftime_l.
	* include/wchar.h: Add libc_hidden_proto for __wcsftime_l.
	* time/strftime.c: Always use libc_hidden_def if _LIBC.

	* libio/libioP.h: Add libc_hidden_proto for _IO_file_open.
	* libio/fileops.c: Add libc_hidden_def for _IO_file_open.

	* malloc/mtrace.c: Add libc_hidden_proto and libc_hidden_def for
	tr_break.

	* csu/Makefile (routines): Add dso_handle.
	* csu/dso_handle.c: New file.
 2002-12-31 23:13:55 +00:00
Roland McGrath
c877418f2e * include/libc-symbols.h (__libc_freeres_fn_section, libc_freeres_fn): 
New macros.
	* elf/dl-close.c (free_mem): Use libc_freeres_fn macro, remove
	text_set_element.
	* elf/dl-libc.c (free_mem): Likewise.
	* iconv/gconv_conf.c (free_mem): Likewise.
	* iconv/gconv_db.c (free_mem): Likewise.
	* iconv/gconv_dl.c (free_mem): Likewise.
	* iconv/gconv_cache.c (free_mem): Likewise.
	* intl/finddomain.c (free_mem): Likewise.
	* intl/dcigettext.c (free_mem): Likewise.
	* locale/setlocale.c (free_mem): Likewise.
	* misc/fstab.c (fstab_free): Likewise.
	* nss/nsswitch.c (free_mem): Likewise.
	* posix/regcomp.c (free_mem): Likewise.
	* resolv/gai_misc.c (free_res): Likewise.
	* stdlib/fmtmsg.c (free_mem): Likewise.
	* sunrpc/clnt_perr.c (free_mem): Likewise.
	* sysdeps/generic/setenv.c (free_mem): Likewise.
	* sysdeps/unix/sysv/linux/shm_open.c (freeit): Likewise.
	* sysdeps/pthread/aio_misc.c (free_res): Likewise.
	* time/tzset.c (free_mem): Likewise.
	* malloc/mtrace.c (release_libc_mem): Add __libc_freeres_fn_section.
	* locale/loadarchive.c (_nl_archive_subfreeres): Likewise.
	* malloc/set-freeres.c (__libc_freeres): Likewise.

	* login/getutent.c: Include stdlib.h instead of stddef.h.
	(buffer): Change into pointer to utmp, add libc_freeres_ptr.
	(__getutent): Allocate buffer the first time it is run.
	* login/getutid.c: Include stdlib.h instead of stddef.h.
	(buffer): Change into pointer to utmp, add libc_freeres_ptr.
	(__getutid): Allocate buffer the first time it is run.
	* login/getutline.c: Include stdlib.h instead of stddef.h.
	(buffer): Change into pointer to utmp, add libc_freeres_ptr.
	(__getutline): Allocate buffer the first time it is run.
	* malloc/mtrace.c (malloc_trace_buffer): Change into char *.
	(mtrace): Allocate malloc_trace_buffer.
	* resolv/nsap_addr.c (inet_nsap_ntoa): Decrease size of tmpbuf.
	* resolv/ns_print.c (ns_sprintrrf): Decrease size of t.
	* string/strerror.c: Include libintl.h and errno.h.
	(buf): New variable.
	(strerror): Only allocate buffer if actually needed (unknown error).
	* time/tzfile.c (transitions): Add libc_freeres_ptr.
	(freeres): Remove.

2002-10-25  Jakub Jelinek  <jakub@redhat.com>

	* include/libc-symbols.h (libc_freeres_ptr): New macro.
	* malloc/set-freeres.c (__libc_freeres_ptrs): Define using
	symbol_set_define.
	(__libc_freeres): Free all pointers in that section.
	* Makerules (build-shlib): Add $(LDSEDCMD-$(@F:lib%.so=%).so) to sed
	commands when creating .lds script.
	(LDSEDCMD-c.so): New variable.
	* inet/rcmd.c (ahostbuf): Change into char *.  Add libc_freeres_ptr.
	(rcmd_af): Use strdup to allocate ahostbuf.
	* inet/rexec.c (ahostbuf): Change into char *.  Add libc_freeres_ptr.
	(rexec_af): Use strdup to allocate ahostbuf.
	* stdio-common/reg-printf.c (printf_funcs): Remove.
	(__printf_arginfo_table): Change into printf_arginfo_function **.
	Add libc_freeres_ptr.
	(__register_printf_function): Allocate __printf_arginfo_table
	and __printf_function_table the first time it is called.
	* stdio-common/printf-parse.h (__printf_arginfo_table): Change into
	printf_arginfo_function **.
	(parse_one_spec): Add __builtin_expect.
	* grp/fgetgrent.c (buffer): Add libc_freeres_ptr.
	(free_mem): Remove.
	* inet/getnetgrent.c (buffer): Add libc_freeres_ptr.
	(free_mem): Remove.
	* intl/localealias.c (libc_freeres_ptr): Define if !_LIBC.
	(string_space, map): Add libc_freeres_ptr.
	(free_mem): Remove.
	* misc/efgcvt.c (FCVT_BUFPTR): Add libc_freeres_ptr.
	(free_mem): Remove.
	* misc/mntent.c (getmntent_buffer): Add libc_freeres_ptr.
	(free_mem): Remove.
	* crypt/md5-crypt.c (libc_freeres_ptr): Define if !_LIBC.
	(buffer): Add libc_freeres_ptr.
	(free_mem): Remove for _LIBC.
	* nss/getXXbyYY.c (buffer): Add libc_freeres_ptr.
	(free_mem): Remove.
	* nss/getXXent.c (buffer): Add libc_freeres_ptr.
	(free_mem): Remove.
	* pwd/fgetpwent.c (buffer): Add libc_freeres_ptr.
	(free_mem): Remove.
	* resolv/res_hconf.c (ifaddrs): Add libc_freeres_ptr.
	(free_mem): Remove.
	* shadow/fgetspent.c (buffer): Add libc_freeres_ptr.
	(free_mem): Remove.
	* sysdeps/posix/ttyname.c (getttyname_name): Add libc_freeres_ptr.
	(free_mem): Remove.
	* sysdeps/unix/sysv/linux/getsysstats.c (mount_proc): Add
	libc_freeres_ptr.
	(free_mem): Remove.
	* sysdeps/unix/sysv/linux/ttyname.c (getttyname_name, ttyname_buf): Add
	libc_freeres_ptr.
	(free_mem): Remove.

2002-10-30  Jakub Jelinek  <jakub@redhat.com>

	* malloc/obstack.c [_LIBC] (obstack_free): Change into strong_alias
	instead of duplicating the whole function in libc.
 2002-11-01 20:44:15 +00:00