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authorUlrich Drepper <drepper@redhat.com>1996-10-31 02:57:12 +0000
committerUlrich Drepper <drepper@redhat.com>1996-10-31 02:57:12 +0000
commitba1ffaa1c6989873b57edc84491bfd1308b2190d (patch)
tree77274c1136f21a58e60397fdd62ad03846bc5888 /stdlib
parentf0f4432f46882d22f61a89f4130a697313f53901 (diff)
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update from main archive 961030cvs/libc-961031
Thu Oct 31 00:01:39 1996 Ulrich Drepper <drepper@cygnus.com> * signal/Makefile (routines): Add sigwait. * signal/signal.h: Add prototype for sigwait. * sysdeps/posix/sigwait.c: New file. Implementation of sigwait function from POSIX.1c. * sysdeps/stub/sigwait.c: New file. Stub version of sigwait. Wed Oct 30 02:01:17 1996 Richard Henderson <rth@tamu.edu> * sunrpc/xdr_float.c (xdr_float): Handle sizeof(float)!=sizeof(long), but don't bother going farther than sizeof(float)==sizeof(int). (xdr_double): Handle little-endian machines! Handle sizeof(double) != 2*sizeof(long), though again don't bother with more than int. Thu Oct 29 16:09:42 1996 Craig Metz <cmetz@inner.net> * sysdeps/posix/getaddrinfo.c: Use buffer limits for inet_ntop function. Tue Oct 29 12:37:22 1996 Ulrich Drepper <drepper@cygnus.com> * Makerules: Create symbolic links for linking in $(libdir). (make-link): Use absolute path for destination if this is not in the same directory. * elf/rtld.c (dl_main): When verifying don't check the name of the dynamic linker. * shlib-versions: Change entries for Hurd specific libs from *-*-gnu* to *-*-gnu?* so that i586-pc-linux-gnu does not match these entries. * assert/assert.h: Reformat copyright. Change reference to ANSI into reference to ISO C. * ctype/ctype.h: Likewise. * errno.h: Likewise. * limits.h: Likewise. * math/math.h: Likewise. * setjmp/setjmp.h: Likewise. * stdio/stdio.h: Likewise. * libio/stdio.h: Likewise. * stdlib/stdlib.h: Likewise. * string/string.h: Likewise. * time/time.h: Likewise. * string/argz.h: Use __const is definitions. * elf/dlfcn.h: Use __const and __P. Reformat copyright. * misc/err.h: Likewise. * wctype/wctype.h (wctrans_t): Use __const instead of const. * Makeconfig ($(common-objpfx)soversions.mk): Generate list of sonames for versioned libraries. * Makefile: Remove code to generate libc-version.h. Generate gnu/lib-names.h with info from soversions.mk. * features.h: Define __GLIBC__ and __GLIBC_MINOR__. * dirent/tst-seekdir.c: Initialize save3. * grp/testgrp.c: Initialize my_group. * grp/fgetgrent_r.c: Change interface to follow POSIX.1c. * grp/grp.h: Likewise. * nss/getXXbyYY.c: Likewise. * nss/getXXbyYY_r.c: Likewise. * nss/getXXent.c: Likewise. * nss/getXXent_r.c: Likewise. * pwd/fgetpwent_r.c: Likewise. * pwd/pwd.h: Likewise. * shadow/fgetspent_r.c: Likewise. * shadow/sgetspent.c: Likewise. * shadow/sgetspent_r.c: Likewise. * grp/fgetgrent.c: Adapt for change in interface of fgetgrent_r. * pwd/fgetpwent.c: Likewise, for fgetpwent_r.c. * shadow/fgetspent.c: Likewise, for fgetpwent_r.c. * resolv/netdb.h: Adapt prototypes for reentrant functions to follow POSIX.1c. * sunrpc/rpc/netdb.h: Likewise, * shadow/shadow.h: Likewise. * inet/getnetgrent_r.c: Follow change in pwd/grp function interface. * sysdeps/unix/getlogin_r.c: Return ERANGE when buffer is too small. * inet/herrno.c: Don't define __h_errno. Only h_errno otherwise the ELF aliasing creates strange situations. * sysdeps/unix/sysv/linux/errnos.H: Define __set_errno as inline function. * sysdeps/unix/sysv/linux/i386/sysdep.S: Don't define __errno. * sysdeps/unix/sysv/linux/m68k/sysdep.S: Likewise. * libio/libio.h: Don't declare _IO_flockfile and _IO_funlockfile weak. * locale/programs/charmap.c: Add casts to prevent warnings. * locale/programs/linereader.h: Likewise. * locale/programs/ld-collate.c: Likewise. * locale/programs/stringtrans.c: Likewise. Change types for various variables to prevent warnings. * locale/programs/ld-ctype.c: Likewise. * locale/programs/linereader.h (lr_ungetc): Likewise. * locale/programs/charset.h (struct charset): Use `unsigned int' as type for width_default. * posix/regex.c: Change type of `this_reg' variables. * stdio-common/Makefile: Use -Wno-format for tstdiomisc.c. * stdio-common/bug5.c: De-ANSI-fy. Use correct types for variables. * stdio-common/printf_fp.c: Initialize to_shift. * stdio-common/test_rdwr.c: Add cast. * stdio-common/vfprintf.c: Add casts and use correct types to prevent warnings. * stdio-common/vfscanf.c: Initialize str and strptr. * sysdeps/libm-ieee754/e_jnf.c: Use correct types to prevent warnings. * sysdeps/libm-ieee754/e_pow.c: Likewise. * sysdeps/libm-ieee754/e_powf.c: Likewise. * sysdeps/libm-ieee754/e_rem_pio2f.c: Likewise. * time/test-tz.c: Likewise. * manual/creature.texi: Document _REENTRANT and _THREAD_SAFE. * manual/libc.texinfo: Prevent makeinfo failure by avoiding libc.cp index. This must be fixed. * manual/nss.texi: Adapt for correct POSIX.1c interface of reentrant functions. * manual/users.texi: Document netgroup functions. * po/es.po: Updated. * po/fr.po: Updated. * posix/fnmatch.c: Change to match libit version. * posix/unistd.h: Change prototype for ttyname_r to match POSIX.1c. * sysdep/posix/ttyname_r.c: Likewise. * stdlib/atexit.h (__new_exitfn): Add internal locking. * stdlib/exit.c: De-ANSI-fy. Handle new ef_us value for flavor. * stdlib/exit.h: De-ANSI-fy. Define new ef_us value for flavor. * stdlib/random.c (__srandom): Add internal locking. (__initstate): Likewise. (__setstate): Likewise. (__random): Likewise. Mon Oct 28 22:28:37 1996 NIIBE Yutaka <gniibe@mri.co.jp> * sysdeps/generic/crypt-entry.c (crypt_r): Use __set_errno. (crypt): Likewise. * resolv/gethnamaddr.c (gethostbyname2): Likewise. * sysdeps/generic/uname.c: Likewise. * sysdeps/posix/rename.c: Likewise. * sysdeps/stub/setrlimit.c: Likewise. * nss/nss_db/db-netgrp.c (_nss_db_setnetgrent): Fix typo. Sun Oct 27 11:12:50 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * locale/programs/ld-collate.c (collate_order_elem): Fix format string. (collate_element_to): Cast field width argument to `int' for format string. (collate_symbol): Likewise. (collate_order_elem): Likewise. (collate_weight_bsymbol): Likewise. (collate_simple_weight): Likewise. * locale/programs/ld-time.c (STRARR_ELEM): Fix format string. * locale/programs/ld-ctype.c (ctype_class_newP): Add missing argument for format string. (ctype_map_newP): Likewise. (set_class_defaults): Fix format string. * locale/programs/localedef.c (construct_output_path): Putting an explicit \0 into the format string does not work, use %c. Sat Oct 26 20:38:36 1996 Richard Henderson <rth@tamu.edu> * Makerules: Install all shared libraries in $(slibdir). * login/Makefile: Build libutil.so in others pass after libc.so is created. * misc/mntent.h: Include <paths.h> for _PATH_MNTTAB & _PATH_MOUNTED. * string/stratcliff.c: Allocate 3 pages instead of one, then use mprotect so that we know that the adjacent pages are inaccessible. * resource/sys/resource.h: Move all structures and enums to ... * sysdeps/generic/resourcebits.h: ... here ... * sysdeps/unix/bsd/sun/sunos4/resourcebits.h: ... and here. * sysdeps/unix/sysv/linux/alpha/resourcebits.h: Remove. * sysdeps/unix/sysv/linux/i386/resourcebits.h: Remove. * sysdeps/unix/sysv/linux/m68k/resourcebits.h: Remove. * sysdeps/unix/sysv/linux/mips/resourcebits.h: Remove. * sysdeps/unix/sysv/linux/resourcebits.h: New file. Use kernel header for RLIMIT_* definitions. The members of struct rlimit are longs. Thu Oct 24 17:43:34 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * MakeTAGS (sysdep-dirs): Fix typo. Wed Oct 23 03:45:22 1996 Ulrich Drepper <drepper@cygnus.com> * Makefile (headers): Don't mention libc-version.h. (install-others): ...but here. * time/strptime.c: Recognize %s, %u, %g, and %G format. nothing is found. This guarantees all subsequent calls behave * sysdeps/unix/sysv/linux/syscalls.list: Change function name for * io/getwd.c (getwd) [! PATH_MAX]: Don't assume that the user's buffer is any longer than the amount necessary to hold the filename; the Hurd getcwd uses the *entire* contents of the buffer, however long it is specified to be. * posix/getconf.c: De-ANSI-fy. Recognize POSIX.2 constant names. since these do not depend on the platform.
Diffstat (limited to 'stdlib')
-rw-r--r--stdlib/atexit.c57
-rw-r--r--stdlib/exit.c23
-rw-r--r--stdlib/exit.h12
-rw-r--r--stdlib/random.c30
-rw-r--r--stdlib/stdlib.h28
5 files changed, 99 insertions, 51 deletions
diff --git a/stdlib/atexit.c b/stdlib/atexit.c
index a2ab453..675de66 100644
--- a/stdlib/atexit.c
+++ b/stdlib/atexit.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1996 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -16,16 +16,16 @@ License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
-#include <ansidecl.h>
+#include <libc-lock.h>
#include <stdlib.h>
#include "exit.h"
/* Register FUNC to be executed by `exit'. */
int
-DEFUN(atexit, (func), void EXFUN((*func), (NOARGS)))
+atexit (void (*func) (void))
{
- struct exit_function *new = __new_exitfn();
+ struct exit_function *new = __new_exitfn ();
if (new == NULL)
return -1;
@@ -36,30 +36,55 @@ DEFUN(atexit, (func), void EXFUN((*func), (NOARGS)))
}
+/* We change global data, so we need locking. */
+__libc_lock_define_initialized (static, lock)
+
+
static struct exit_function_list fnlist = { NULL, 0, };
struct exit_function_list *__exit_funcs = &fnlist;
struct exit_function *
-DEFUN_VOID(__new_exitfn)
+__new_exitfn (void)
{
- register struct exit_function_list *l;
+ struct exit_function_list *l;
+ size_t i = 0;
+
+ __libc_lock_lock (lock)
for (l = __exit_funcs; l != NULL; l = l->next)
{
- register size_t i;
for (i = 0; i < l->idx; ++i)
if (l->fns[i].flavor == ef_free)
- return &l->fns[i];
- if (l->idx < sizeof(l->fns) / sizeof(l->fns[0]))
- return &l->fns[l->idx++];
+ break;
+ if (i < l->idx)
+ break;
+
+ if (l->idx < sizeof (l->fns) / sizeof (l->fns[0]))
+ {
+ i = l->idx++;
+ break;
+ }
}
- l = (struct exit_function_list *) malloc(sizeof(struct exit_function_list));
if (l == NULL)
- return NULL;
- l->next = __exit_funcs;
- __exit_funcs = l;
+ {
+ l = (struct exit_function_list *)
+ malloc (sizeof (struct exit_function_list));
+ if (l != NULL)
+ {
+ l->next = __exit_funcs;
+ __exit_funcs = l;
+
+ l->idx = 1;
+ i = 0;
+ }
+ }
+
+ /* Mark entry as used, but we don't know the flavor now. */
+ if (l != NULL)
+ l->fns[i].flavor = ef_us;
+
+ __libc_lock_unlock (lock)
- l->idx = 1;
- return &l->fns[0];
+ return l == NULL ? NULL : &l->fns[i];
}
diff --git a/stdlib/exit.c b/stdlib/exit.c
index 4f33a25..ec7ee6a 100644
--- a/stdlib/exit.c
+++ b/stdlib/exit.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1995 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1995, 1996 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -16,7 +16,6 @@ License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
-#include <ansidecl.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
@@ -32,25 +31,26 @@ DEFINE_HOOK (__libc_atexit, (void))
in the reverse of the order in which they were registered
perform stdio cleanup, and terminate program execution with STATUS. */
void
-DEFUN(exit, (status), int status)
+exit (int status)
{
- register CONST struct exit_function_list *l;
+ const struct exit_function_list *l;
for (l = __exit_funcs; l != NULL; l = l->next)
{
- register size_t i = l->idx;
+ size_t i = l->idx;
while (i-- > 0)
{
- CONST struct exit_function *CONST f = &l->fns[i];
+ const struct exit_function *const f = &l->fns[i];
switch (f->flavor)
{
case ef_free:
+ case ef_us:
break;
case ef_on:
- (*f->func.on.fn)(status, f->func.on.arg);
+ (*f->func.on.fn) (status, f->func.on.arg);
break;
case ef_at:
- (*f->func.at)();
+ (*f->func.at) ();
break;
}
}
@@ -60,11 +60,10 @@ DEFUN(exit, (status), int status)
RUN_HOOK (__libc_atexit, ());
#else
{
- extern void EXFUN(_cleanup, (NOARGS));
- _cleanup();
+ extern void _cleanup (void);
+ _cleanup ();
}
#endif
- _exit(status);
+ _exit (status);
}
-
diff --git a/stdlib/exit.h b/stdlib/exit.h
index 2142178..83d20b7 100644
--- a/stdlib/exit.h
+++ b/stdlib/exit.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1996 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -20,14 +20,14 @@ Cambridge, MA 02139, USA. */
struct exit_function
{
- enum { ef_free, ef_on, ef_at } flavor; /* `ef_free' MUST be zero! */
+ enum { ef_free, ef_us, ef_on, ef_at } flavor; /* `ef_free' MUST be zero! */
union
{
- void EXFUN((*at), (NOARGS));
+ void (*at) (void);
struct
{
- void EXFUN((*fn), (int status, PTR arg));
- PTR arg;
+ void (*fn) (int status, void *arg);
+ void *arg;
} on;
} func;
};
@@ -39,6 +39,6 @@ struct exit_function_list
};
extern struct exit_function_list *__exit_funcs;
-extern struct exit_function *EXFUN(__new_exitfn, (NOARGS));
+extern struct exit_function *__new_exitfn (void);
#endif /* exit.h */
diff --git a/stdlib/random.c b/stdlib/random.c
index e2b191b..461b76f 100644
--- a/stdlib/random.c
+++ b/stdlib/random.c
@@ -22,6 +22,7 @@
* Rewritten to use reentrant functions by Ulrich Drepper, 1995.
*/
+#include <libc-lock.h>
#include <limits.h>
#include <stddef.h>
#include <stdlib.h>
@@ -162,6 +163,11 @@ static struct random_data unsafe_state =
end_ptr : &randtbl[sizeof (randtbl) / sizeof (randtbl[0])]
};
+/* POSIX.1c requires that there is mutual exclusion for the `rand' and
+ `srand' functions to prevent concurrent calls from modifying common
+ data. */
+__libc_lock_define_initialized (static, lock)
+
/* Initialize the random number generator based on the given seed. If the
type is the trivial no-state-information type, just remember the seed.
Otherwise, initializes state[] based on the given "seed" via a linear
@@ -174,7 +180,9 @@ void
__srandom (x)
unsigned int x;
{
+ __libc_lock_lock (lock)
(void) __srandom_r (x, &unsafe_state);
+ __libc_lock_unlock (lock)
}
weak_alias (__srandom, srandom)
@@ -197,10 +205,16 @@ __initstate (seed, arg_state, n)
void *arg_state;
size_t n;
{
- void *ostate = (void *) &unsafe_state.state[-1];
+ void *ostate;
+
+ __libc_lock_lock (lock)
+
+ ostate = (void *) &unsafe_state.state[-1];
__initstate_r (seed, arg_state, n, &unsafe_state);
+ __libc_lock_unlock (lock)
+
return ostate;
}
@@ -218,10 +232,16 @@ void *
__setstate (arg_state)
void *arg_state;
{
- void *ostate = (void *) &unsafe_state.state[-1];
+ void *ostate;
+
+ __libc_lock_lock (lock)
+
+ ostate = (void *) &unsafe_state.state[-1];
if (__setstate_r (arg_state, &unsafe_state) < 0)
- return NULL;
+ ostate = NULL;
+
+ __libc_lock_unlock (lock)
return ostate;
}
@@ -244,8 +264,12 @@ __random ()
{
int32_t retval;
+ __libc_lock_lock (lock)
+
(void) __random_r (&unsafe_state, &retval);
+ __libc_lock_unlock (lock)
+
return retval;
}
diff --git a/stdlib/stdlib.h b/stdlib/stdlib.h
index cb48aa1..d11b8bf 100644
--- a/stdlib/stdlib.h
+++ b/stdlib/stdlib.h
@@ -1,23 +1,23 @@
/* Copyright (C) 1991, 92, 93, 94, 95, 96 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+ This file is part of the GNU C Library.
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
/*
- * ANSI Standard: 4.10 GENERAL UTILITIES <stdlib.h>
+ * ISO S Standard: 4.10 GENERAL UTILITIES <stdlib.h>
*/
#ifndef _STDLIB_H