+2002-10-09 Ulrich Drepper <drepper@redhat.com>
+
+ * Versions.def (libc): Add GLIBC_2.3.1.
+ (libpthread): Add GLIBC_2.3.1.
+
+ * include/signal.h: Add libc_hidden_proto for __sigwait, __sigwaitinfo,
+ and __sigtimedwait.
+ * signal/Versions: Add __sigtimedwait, __sigwait, and __sigwaitinfo.
+ * sysdeps/unix/sysv/linux/sigtimedwait.c (__sigtimedwait): Add
+ libc_hidden_def.
+ * sysdeps/unix/sysv/linux/sigwait.c (__sigwait): Likewise.
+ * sysdeps/unix/sysv/linux/sigwaitinfo.c (__sigwaitinfo): Likewise.
+
+ * include/sys/msg.h: Declare __libc_msgrcv and __libc_msgsnd.
+ * sysdeps/unix/sysv/linux/msgrcv.c (__msgrcv): Rename to __libc_msgrcv
+ and make old name an alias.
+ * sysdeps/unix/sysv/linux/msgsnd.c (__msgsnd): Rename to __libc_msgsnd
+ and make old name an alias.
+ * sysvipc/Versions (libc) [GLIBC_PRIVATE]: Add __libc_msgrcv and
+ __libc_msgsnd.
+
+ * include/sys/uio.h: Declare __libc_readv and __libc_writev.
+ * misc/Versions (libc) [GLIBC_PRIVATE]: Add __libc_readv and
+ __libc_writev.
+ * sysdeps/generic/readv.c (__readv): Rename to __libc_readv and make
+ old name an alias.
+ * sysdeps/posix/readv.c: Likewise
+ * sysdeps/unix/sysv/aix/readv.c: Likewise.
+ * sysdeps/unix/sysv/linux/readv.c: Likewise.
+ * sysdeps/generic/writev.c (__writev): Rename to __libc_writev and make
+ old name an alias.
+ * sysdeps/posix/writev.c: Likewise
+ * sysdeps/unix/sysv/aix/writev.c: Likewise.
+ * sysdeps/unix/sysv/linux/writev.c: Likewise.
+
+ * include/sys/wait.h: Declare __waitid.
+ * posix/Versions (libc) [GLIBC_PRIVATE]: Add __waitid.
+ * sysdeps/generic/waitid.c (waitid): Rename to __waitid and make old
+ name an alias.
+ * sysdeps/posix/waitid.c: Likewise.
+ * sysdeps/unix/sysv/aix/waitid.c: Likewise.
+
+ * sysdeps/unix/sysv/linux/syscalls.list: Add creat syscall.
+
+2002-10-07 Jakub Jelinek <jakub@redhat.com>
+
+ * include/alloca.h (__libc_use_alloca, __libc_alloca_cutoff): New
+ prototypes.
+ (__MAX_ALLOCA_CUTOFF): Define.
+ Include allocalim.h.
+ * resolv/nss_dns/dns-host.c (_nss_dns_gethostbyname2_r,
+ _nss_dns_gethostbyaddr_r): Use alloca or malloc to allocate
+ host_buffer depending on __libc_use_alloca.
+ * resolv/nss_dns/dns-network.c (_nss_dns_getnetbyname_r,
+ _nss_dns_getnetbyaddr_r): Use alloca or malloc to allocate
+ net_buffer depending on __libc_use_alloca.
+ * resolv/res_query.c (res_nquery): Use alloca or malloc to allocate
+ buf depending on __libc_use_alloca.
+ * resolv/gethnamaddr.c (gethostbyname2, gethostbyaddr): Likewise.
+ * stdio-common/vfprintf.c (vfprintf): Use __libc_use_alloca
+ instead of hardcoded constants.
+ Pass proper size argument to alloca and compute end for wide char
+ version.
+ * stdio-common/printf_fp.c (__printf_fp): Use __libc_use_alloca
+ instead of hardcoded constants.
+ * string/strcoll.c (strcoll): Likewise.
+ * string/strxfrm.c (strxfrm): Likewise.
+ * sysdeps/posix/readv.c (__readv): Likewise.
+ * sysdeps/posix/writev.c (__writev): Likewise.
+ * sysdeps/generic/allocalim.h: New file.
+
2002-10-08 Roland McGrath <roland@redhat.com>
* configure.in (aux_missing warning): Change "too old" to
# define __alloca(size) __builtin_alloca (size)
#endif /* GCC. */
+extern int __libc_use_alloca (size_t size) __attribute__ ((const));
+extern int __libc_alloca_cutoff (size_t size) __attribute__ ((const));
+
+#define __MAX_ALLOCA_CUTOFF 65536
+
+#include <allocalim.h>
+
#endif
extern int __sigsuspend (__const sigset_t *__set);
libc_hidden_proto (__sigsuspend)
extern int __sigwait (__const sigset_t *__set, int *__sig);
+libc_hidden_proto (__sigwait)
extern int __sigwaitinfo (__const sigset_t *__set, siginfo_t *__info);
+libc_hidden_proto (__sigwaitinfo)
extern int __sigtimedwait (__const sigset_t *__set, siginfo_t *__info,
__const struct timespec *__timeout);
+libc_hidden_proto (__sigtimedwait)
extern int __sigqueue (__pid_t __pid, int __sig,
__const union sigval __val);
extern int __sigvec (int __sig, __const struct sigvec *__vec,
+#ifndef _SYS_MSG_H
#include <sysvipc/sys/msg.h>
+
+extern int __libc_msgrcv (int msqid, void *msgp, size_t msgsz, long int msgtyp,
+ int msgflg);
+extern int __libc_msgsnd (int msqid, const void *msgp, size_t msgsz,
+ int msgflg);
+
+#endif
/* Now define the internal interfaces. */
extern ssize_t __readv (int __fd, __const struct iovec *__vector,
int __count);
+extern ssize_t __libc_readv (int __fd, __const struct iovec *__vector,
+ int __count);
extern ssize_t __writev (int __fd, __const struct iovec *__vector,
int __count);
+extern ssize_t __libc_writev (int __fd, __const struct iovec *__vector,
+ int __count);
#endif
extern __pid_t __waitpid (__pid_t __pid, int *__stat_loc,
int __options);
libc_hidden_proto (__waitpid)
+extern int __waitid (idtype_t idtype, id_t id, siginfo_t *infop, int options);
extern __pid_t __libc_waitpid (pid_t __pid, int *__stat_loc, int __options);
extern __pid_t __libc_wait (int *__stat_loc);
GLIBC_PRIVATE {
# Internal libc interface to libpthread
__libc_internal_tsd_get; __libc_internal_tsd_set;
- __libc_internal_tsd_address;
-
+ __libc_internal_tsd_address; __libc_alloca_cutoff;
}
}
GLIBC_PRIVATE {
# Internal libc interface to libpthread
__libc_internal_tsd_get; __libc_internal_tsd_set;
- __libc_internal_tsd_address;
+ __libc_internal_tsd_address; __libc_alloca_cutoff;
__pthread_kill_other_threads_np;
}
}
#ifdef USE_TLS
char *p_stackaddr; /* Stack address. */
#endif
+ size_t p_alloca_cutoff; /* Maximum size which should be allocated
+ using alloca() instead of malloc(). */
/* New elements must be added at the end. */
} __attribute__ ((aligned(32))); /* We need to align the structure so that
doubles are aligned properly. This is 8
char ** out_new_thread,
char ** out_new_thread_bottom,
char ** out_guardaddr,
- size_t * out_guardsize)
+ size_t * out_guardsize,
+ size_t * out_stacksize)
{
pthread_descr new_thread;
char * new_thread_bottom;
/* Clear the thread data structure. */
memset (new_thread, '\0', sizeof (*new_thread));
#endif
+ stacksize = attr->__stacksize;
}
else
{
*out_new_thread_bottom = new_thread_bottom;
*out_guardaddr = guardaddr;
*out_guardsize = guardsize;
+#ifdef NEED_SEPARATE_REGISTER_STACK
+ *out_stacksize = stacksize / 2;
+#else
+ *out_stacksize = stacksize;
+#endif
return 0;
}
char * new_thread_bottom;
pthread_t new_thread_id;
char *guardaddr = NULL;
- size_t guardsize = 0;
+ size_t guardsize = 0, stksize = 0;
int pagesize = __getpagesize();
int saved_errno = 0;
continue;
if (pthread_allocate_stack(attr, thread_segment(sseg),
pagesize, &stack_addr, &new_thread_bottom,
- &guardaddr, &guardsize) == 0)
+ &guardaddr, &guardsize, &stksize) == 0)
{
#ifdef USE_TLS
new_thread->p_stackaddr = stack_addr;
new_thread->p_guardsize = guardsize;
new_thread->p_nr = sseg;
new_thread->p_inheritsched = attr ? attr->__inheritsched : 0;
+ new_thread->p_alloca_cutoff = stksize / 4 > __MAX_ALLOCA_CUTOFF
+ ? __MAX_ALLOCA_CUTOFF : stksize / 4;
/* Initialize the thread handle */
__pthread_init_lock(&__pthread_handles[sseg].h_lock);
__pthread_handles[sseg].h_descr = new_thread;
__THROW __attribute__ ((__const__));
#endif /* !(USE_TLS && HAVE___THREAD) */
+
+int __libc_alloca_cutoff (size_t size)
+{
+ return size <= __MAX_ALLOCA_CUTOFF;
+}
/* Descriptor of the initial thread */
struct _pthread_descr_struct __pthread_initial_thread = {
- {
- {
- .self = &__pthread_initial_thread /* pthread_descr self */
- }
- },
- &__pthread_initial_thread, /* pthread_descr p_nextlive */
- &__pthread_initial_thread, /* pthread_descr p_prevlive */
- NULL, /* pthread_descr p_nextwaiting */
- NULL, /* pthread_descr p_nextlock */
- PTHREAD_THREADS_MAX, /* pthread_t p_tid */
- 0, /* int p_pid */
- 0, /* int p_priority */
- &__pthread_handles[0].h_lock, /* struct _pthread_fastlock * p_lock */
- 0, /* int p_signal */
- NULL, /* sigjmp_buf * p_signal_buf */
- NULL, /* sigjmp_buf * p_cancel_buf */
- 0, /* char p_terminated */
- 0, /* char p_detached */
- 0, /* char p_exited */
- NULL, /* void * p_retval */
- 0, /* int p_retval */
- NULL, /* pthread_descr p_joining */
- NULL, /* struct _pthread_cleanup_buffer * p_cleanup */
- 0, /* char p_cancelstate */
- 0, /* char p_canceltype */
- 0, /* char p_canceled */
- NULL, /* char * p_in_sighandler */
- 0, /* char p_sigwaiting */
- PTHREAD_START_ARGS_INITIALIZER(NULL),
- /* struct pthread_start_args p_start_args */
- {NULL}, /* void ** p_specific[PTHREAD_KEY_1STLEVEL_SIZE] */
- {NULL}, /* void * p_libc_specific[_LIBC_TSD_KEY_N] */
- &_errno, /* int *p_errnop */
- 0, /* int p_errno */
- &_h_errno, /* int *p_h_errnop */
- 0, /* int p_h_errno */
- &_res, /* struct __res_state *p_resp */
- {}, /* struct __res_state p_res */
- 1, /* int p_userstack */
- NULL, /* void * p_guardaddr */
- 0, /* size_t p_guardsize */
- 0, /* Always index 0 */
- 0, /* int p_report_events */
- {{{0, }}, 0, NULL}, /* td_eventbuf_t p_eventbuf */
- __ATOMIC_INITIALIZER, /* struct pthread_atomic p_resume_count */
- 0, /* char p_woken_by_cancel */
- 0, /* char p_condvar_avail */
- 0, /* char p_sem_avail */
- NULL, /* struct pthread_extricate_if *p_extricate */
- NULL, /* pthread_readlock_info *p_readlock_list; */
- NULL, /* pthread_readlock_info *p_readlock_free; */
- 0 /* int p_untracked_readlock_count; */
+ .p_header.data.self = &__pthread_initial_thread,
+ .p_nextlive = &__pthread_initial_thread,
+ .p_prevlive = &__pthread_initial_thread,
+ .p_tid = PTHREAD_THREADS_MAX,
+ .p_lock = &__pthread_handles[0].h_lock,
+ .p_start_args = PTHREAD_START_ARGS_INITIALIZER(NULL),
+#if !(USE_TLS && HAVE___THREAD)
+ .p_errnop = &_errno,
+ .p_h_errnop = &_h_errno,
+ .p_resp = &_res,
+#endif
+ .p_userstack = 1,
+ .p_resume_count = __ATOMIC_INITIALIZER,
+ .p_alloca_cutoff = __MAX_ALLOCA_CUTOFF
};
/* Descriptor of the manager thread; none of this is used but the error
#define manager_thread (&__pthread_manager_thread)
struct _pthread_descr_struct __pthread_manager_thread = {
- {
- {
- .self = &__pthread_manager_thread /* pthread_descr self */
- }
- },
- NULL, /* pthread_descr p_nextlive */
- NULL, /* pthread_descr p_prevlive */
- NULL, /* pthread_descr p_nextwaiting */
- NULL, /* pthread_descr p_nextlock */
- 0, /* int p_tid */
- 0, /* int p_pid */
- 0, /* int p_priority */
- &__pthread_handles[1].h_lock, /* struct _pthread_fastlock * p_lock */
- 0, /* int p_signal */
- NULL, /* sigjmp_buf * p_signal_buf */
- NULL, /* sigjmp_buf * p_cancel_buf */
- 0, /* char p_terminated */
- 0, /* char p_detached */
- 0, /* char p_exited */
- NULL, /* void * p_retval */
- 0, /* int p_retval */
- NULL, /* pthread_descr p_joining */
- NULL, /* struct _pthread_cleanup_buffer * p_cleanup */
- 0, /* char p_cancelstate */
- 0, /* char p_canceltype */
- 0, /* char p_canceled */
- NULL, /* char * p_in_sighandler */
- 0, /* char p_sigwaiting */
- PTHREAD_START_ARGS_INITIALIZER(__pthread_manager),
- /* struct pthread_start_args p_start_args */
- {NULL}, /* void ** p_specific[PTHREAD_KEY_1STLEVEL_SIZE] */
- {NULL}, /* void * p_libc_specific[_LIBC_TSD_KEY_N] */
- &__pthread_manager_thread.p_errno, /* int *p_errnop */
- 0, /* int p_errno */
- NULL, /* int *p_h_errnop */
- 0, /* int p_h_errno */
- NULL, /* struct __res_state *p_resp */
- {}, /* struct __res_state p_res */
- 0, /* int p_userstack */
- NULL, /* void * p_guardaddr */
- 0, /* size_t p_guardsize */
- 1, /* Always index 1 */
- 0, /* int p_report_events */
- {{{0, }}, 0, NULL}, /* td_eventbuf_t p_eventbuf */
- __ATOMIC_INITIALIZER, /* struct pthread_atomic p_resume_count */
- 0, /* char p_woken_by_cancel */
- 0, /* char p_condvar_avail */
- 0, /* char p_sem_avail */
- NULL, /* struct pthread_extricate_if *p_extricate */
- NULL, /* pthread_readlock_info *p_readlock_list; */
- NULL, /* pthread_readlock_info *p_readlock_free; */
- 0 /* int p_untracked_readlock_count; */
+ .p_header.data.self = &__pthread_manager_thread,
+ .p_lock = &__pthread_handles[1].h_lock,
+ .p_start_args = PTHREAD_START_ARGS_INITIALIZER(__pthread_manager),
+#if !(USE_TLS && HAVE___THREAD)
+ .p_errnop = &__pthread_manager_thread.p_errno,
+#endif
+ .p_nr = 1,
+ .p_resume_count = __ATOMIC_INITIALIZER,
+ .p_alloca_cutoff = PTHREAD_STACK_MIN / 4
};
#endif
# if __LT_SPINLOCK_INIT != 0
self->p_resume_count = (struct pthread_atomic) __ATOMIC_INITIALIZER;
# endif
+ self->p_alloca_cutoff = __MAX_ALLOCA_CUTOFF;
/* Another variable which points to the thread descriptor. */
__pthread_main_thread = self;
}
#endif
__pthread_max_stacksize = max_stack;
+ if (max_stack / 4 < __MAX_ALLOCA_CUTOFF)
+ {
+#ifdef USE_TLS
+ pthread_descr self = THREAD_SELF;
+ self->p_alloca_cutoff = max_stack / 4;
+#else
+ __pthread_initial_thread.p_alloca_cutoff = max_stack / 4;
+#endif
+ }
}
# if __LT_SPINLOCK_INIT != 0
self->p_resume_count = (struct pthread_atomic) __ATOMIC_INITIALIZER;
# endif
+ tcb->p_alloca_cutoff = PTHREAD_STACK_MIN / 4;
#else
tcb = &__pthread_manager_thread;
#endif
__THROW __attribute__ ((__const__)) = libc_internal_tsd_address;
#endif
+
+int __libc_alloca_cutoff (size_t size)
+{
+ pthread_descr self = thread_self();
+ return size <= THREAD_GETMEM_NC(self, p_alloca_cutoff);
+}
--- /dev/null
+/* Determine whether block of given size can be allocated on the stack or not.
+ Copyright (C) 2002 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
+ 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.
+
+ 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. */
+
+#include <limits.h>
+
+extern inline int __libc_use_alloca (size_t size)
+{
+ return (__builtin_expect (size <= PTHREAD_STACK_MIN / 4, 1)
+ || __libc_alloca_cutoff (size));
+}
# s*
setxattr;
}
+ GLIBC_2.3.1 {
+ # Support for cancellation points.
+ __libc_readv; __libc_writev;
+ }
GLIBC_PRIVATE {
# functions which have an additional interface since they are
# cancelable.
# are cancelable.
__libc_wait; __libc_waitpid; __libc_pause; __libc_nanosleep; __libc_fork;
__libc_pread; __libc_pread64; __libc_pwrite; __libc_pwrite64;
+ __waitid;
}
}
const char *name;
int af;
{
- querybuf buf;
+ querybuf *buf;
register const char *cp;
char *bp;
- int n, size, type, len;
+ int n, size, type, len, use_malloc = 0;
+ struct hostent *ret;
extern struct hostent *_gethtbyname2();
if ((_res.options & RES_INIT) == 0 && __res_ninit(&_res) == -1) {
break;
}
- if ((n = res_nsearch(&_res, name, C_IN, type, buf.buf, sizeof(buf.buf))) < 0) {
+ if (!__libc_use_alloca (MAXPACKET)) {
+ buf = (querybuf *) malloc (sizeof (*buf));
+ if (buf == NULL) {
+ __set_h_errno (NETDB_INTERNAL);
+ return NULL;
+ }
+ use_malloc = 1;
+ } else
+ buf = (querybuf *) alloca (sizeof (*buf));
+
+ if ((n = res_nsearch(&_res, name, C_IN, type, buf->buf, sizeof(buf->buf))) < 0) {
dprintf("res_nsearch failed (%d)\n", n);
if (errno == ECONNREFUSED)
return (_gethtbyname2(name, af));
return (NULL);
}
- return (getanswer(&buf, n, name, type));
+ ret = getanswer(buf, n, name, type);
+ if (use_malloc)
+ free (buf);
+ return ret;
}
struct hostent *
const u_char *uaddr = (const u_char *)addr;
static const u_char mapped[] = { 0,0, 0,0, 0,0, 0,0, 0,0, 0xff,0xff };
static const u_char tunnelled[] = { 0,0, 0,0, 0,0, 0,0, 0,0, 0,0 };
- int n;
+ int n, use_malloc = 0;
socklen_t size;
- querybuf buf;
+ querybuf *buf;
register struct hostent *hp;
char qbuf[MAXDNAME+1], *qp = NULL;
#ifdef SUNSECURITY
default:
abort();
}
- n = res_nquery(&_res, qbuf, C_IN, T_PTR, (u_char *)buf.buf, sizeof buf.buf);
+
+ if (!__libc_use_alloca (MAXPACKET)) {
+ buf = (querybuf *) malloc (sizeof (*buf));
+ if (buf == NULL) {
+ __set_h_errno (NETDB_INTERNAL);
+ return NULL;
+ }
+ use_malloc = 1;
+ } else
+ buf = (querybuf *) alloca (sizeof (*buf));
+
+ n = res_nquery(&_res, qbuf, C_IN, T_PTR, buf->buf, sizeof buf->buf);
if (n < 0 && af == AF_INET6) {
strcpy(qp, "ip6.int");
- n = res_nquery(&_res, qbuf, C_IN, T_PTR, (u_char *)buf.buf, sizeof buf.buf);
+ n = res_nquery(&_res, qbuf, C_IN, T_PTR, buf->buf, sizeof buf->buf);
}
if (n < 0) {
+ if (use_malloc)
+ free (buf);
dprintf("res_nquery failed (%d)\n", n);
if (errno == ECONNREFUSED)
return (_gethtbyaddr(addr, len, af));
return (NULL);
}
- if (!(hp = getanswer(&buf, n, qbuf, T_PTR)))
+ hp = getanswer(buf, n, qbuf, T_PTR);
+ if (use_malloc)
+ free (buf);
+ if (!hp)
return (NULL); /* h_errno was set by getanswer() */
#ifdef SUNSECURITY
if (af == AF_INET) {
char *buffer, size_t buflen, int *errnop,
int *h_errnop)
{
- querybuf host_buffer;
+ querybuf *host_buffer;
char tmp[NS_MAXDNAME];
int size, type, n;
const char *cp;
- int map = 0;
+ int map = 0, use_malloc = 0;
int olderr = errno;
+ enum nss_status status;
if ((_res.options & RES_INIT) == 0 && __res_ninit (&_res) == -1)
return NSS_STATUS_UNAVAIL;
&& (cp = res_hostalias (&_res, name, tmp, sizeof (tmp))) != NULL)
name = cp;
- n = res_nsearch (&_res, name, C_IN, type, host_buffer.buf,
- sizeof (host_buffer.buf));
+ if (!__libc_use_alloca (MAXPACKET))
+ {
+ host_buffer = (querybuf *) malloc (sizeof (querybuf));
+ if (host_buffer == NULL)
+ {
+ *errnop = ENOMEM;
+ return NSS_STATUS_UNAVAIL;
+ }
+ use_malloc = 1;
+ }
+ else
+ host_buffer = (querybuf *) alloca (sizeof (querybuf));
+
+ n = res_nsearch (&_res, name, C_IN, type, host_buffer->buf,
+ sizeof (host_buffer->buf));
if (n < 0)
{
enum nss_status status = (errno == ECONNREFUSED
by having the RES_USE_INET6 bit in _res.options set, we try
another lookup. */
if (af == AF_INET6 && (_res.options & RES_USE_INET6))
- n = res_nsearch (&_res, name, C_IN, T_A, host_buffer.buf,
- sizeof (host_buffer.buf));
+ n = res_nsearch (&_res, name, C_IN, T_A, host_buffer->buf,
+ sizeof (host_buffer->buf));
if (n < 0)
- return status;
+ {
+ if (use_malloc)
+ free (host_buffer);
+ return status;
+ }
map = 1;
result->h_length = INADDRSZ;;
}
- return getanswer_r (&host_buffer, n, name, type, result, buffer, buflen,
- errnop, h_errnop, map);
+ status = getanswer_r (host_buffer, n, name, type, result, buffer, buflen,
+ errnop, h_errnop, map);
+ if (use_malloc)
+ free (host_buffer);
+ return status;
}
char *h_addr_ptrs[MAX_NR_ADDRS + 1];
char linebuffer[0];
} *host_data = (struct host_data *) buffer;
- querybuf host_buffer;
+ querybuf *host_buffer;
char qbuf[MAXDNAME+1], *qp = NULL;
size_t size;
- int n, status;
+ int n, status, use_malloc = 0;
int olderr = errno;
if ((_res.options & RES_INIT) == 0 && __res_ninit (&_res) == -1)
break;
}
- n = res_nquery (&_res, qbuf, C_IN, T_PTR, (u_char *)host_buffer.buf,
- sizeof host_buffer);
+ if (!__libc_use_alloca (MAXPACKET))
+ {
+ host_buffer = (querybuf *) malloc (sizeof (querybuf));
+ if (host_buffer == NULL)
+ {
+ *errnop = ENOMEM;
+ return NSS_STATUS_UNAVAIL;
+ }
+ use_malloc = 1;
+ }
+ else
+ host_buffer = (querybuf *) alloca (sizeof (querybuf));
+
+ n = res_nquery (&_res, qbuf, C_IN, T_PTR, host_buffer->buf,
+ sizeof (host_buffer->buf));
if (n < 0 && af == AF_INET6)
{
strcpy (qp, "ip6.int");
- n = res_nquery (&_res, qbuf, C_IN, T_PTR, (u_char *)host_buffer.buf,
- sizeof host_buffer);
+ n = res_nquery (&_res, qbuf, C_IN, T_PTR, host_buffer->buf,
+ sizeof (host_buffer->buf));
}
if (n < 0)
{
*h_errnop = h_errno;
__set_errno (olderr);
+ if (use_malloc)
+ free (host_buffer);
return errno == ECONNREFUSED ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
}
- status = getanswer_r (&host_buffer, n, qbuf, T_PTR, result, buffer, buflen,
+ status = getanswer_r (host_buffer, n, qbuf, T_PTR, result, buffer, buflen,
errnop, h_errnop, 0 /* XXX */);
+ if (use_malloc)
+ free (host_buffer);
if (status != NSS_STATUS_SUCCESS)
{
*h_errnop = h_errno;
int *herrnop)
{
/* Return entry for network with NAME. */
- querybuf net_buffer;
- int anslen;
+ querybuf *net_buffer;
+ int anslen, use_malloc = 0;
char *qbuf;
+ enum nss_status status;
if ((_res.options & RES_INIT) == 0 && __res_ninit (&_res) == -1)
return NSS_STATUS_UNAVAIL;
qbuf = strdupa (name);
- anslen = res_nsearch (&_res, qbuf, C_IN, T_PTR, (u_char *) &net_buffer,
- sizeof (querybuf));
+
+ if (!__libc_use_alloca (MAXPACKET))
+ {
+ net_buffer = (querybuf *) malloc (sizeof (querybuf));
+ if (net_buffer == NULL)
+ {
+ *errnop = ENOMEM;
+ return NSS_STATUS_UNAVAIL;
+ }
+ use_malloc = 1;
+ }
+ else
+ net_buffer = (querybuf *) alloca (sizeof (querybuf));
+
+ anslen = res_nsearch (&_res, qbuf, C_IN, T_PTR, net_buffer->buf,
+ sizeof (net_buffer->buf));
if (anslen < 0)
{
/* Nothing found. */
*errnop = errno;
+ if (use_malloc)
+ free (net_buffer);
return (errno == ECONNREFUSED
|| errno == EPFNOSUPPORT
|| errno == EAFNOSUPPORT)
? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
}
- return getanswer_r (&net_buffer, anslen, result, buffer, buflen, BYNAME);
+ status = getanswer_r (net_buffer, anslen, result, buffer, buflen, BYNAME);
+ if (use_malloc)
+ free (net_buffer);
+ return status;
}
{
/* Return entry for network with NAME. */
enum nss_status status;
- querybuf net_buffer;
+ querybuf *net_buffer;
unsigned int net_bytes[4];
char qbuf[MAXDNAME];
- int cnt, anslen;
+ int cnt, anslen, use_malloc = 0;
u_int32_t net2;
int olderr = errno;
break;
}
- anslen = res_nquery (&_res, qbuf, C_IN, T_PTR, (u_char *) &net_buffer,
- sizeof (querybuf));
+ if (!__libc_use_alloca (MAXPACKET))
+ {
+ net_buffer = (querybuf *) malloc (sizeof (querybuf));
+ if (net_buffer == NULL)
+ {
+ *errnop = ENOMEM;
+ return NSS_STATUS_UNAVAIL;
+ }
+ use_malloc = 1;
+ }
+ else
+ net_buffer = (querybuf *) alloca (sizeof (querybuf));
+
+ anslen = res_nquery (&_res, qbuf, C_IN, T_PTR, net_buffer->buf,
+ sizeof (net_buffer->buf));
if (anslen < 0)
{
/* Nothing found. */
int err = errno;
__set_errno (olderr);
+ if (use_malloc)
+ free (net_buffer);
return (err == ECONNREFUSED
|| err == EPFNOSUPPORT
|| err == EAFNOSUPPORT)
? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
}
- status = getanswer_r (&net_buffer, anslen, result, buffer, buflen, BYADDR);
+ status = getanswer_r (net_buffer, anslen, result, buffer, buflen, BYADDR);
+ if (use_malloc)
+ free (net_buffer);
if (status == NSS_STATUS_SUCCESS)
{
/* Strip trailing zeros. */
u_char *answer, /* buffer to put answer */
int anslen) /* size of answer buffer */
{
- u_char buf[MAXPACKET];
+ u_char *buf;
HEADER *hp = (HEADER *) answer;
- int n;
+ int n, use_malloc = 0;
hp->rcode = NOERROR; /* default */
+ if (!__libc_use_alloca (MAXPACKET)) {
+ buf = malloc (MAXPACKET);
+ if (buf == NULL) {
+ __set_h_errno (NETDB_INTERNAL);
+ return -1;
+ }
+ use_malloc = 1;
+ } else
+ buf = alloca (MAXPACKET);
+
#ifdef DEBUG
if (statp->options & RES_DEBUG)
printf(";; res_query(%s, %d, %d)\n", name, class, type);
#endif
n = res_nmkquery(statp, QUERY, name, class, type, NULL, 0, NULL,
- buf, sizeof(buf));
+ buf, MAXPACKET);
if (n <= 0) {
#ifdef DEBUG
if (statp->options & RES_DEBUG)
printf(";; res_query: mkquery failed\n");
#endif
RES_SET_H_ERRNO(statp, NO_RECOVERY);
+ if (use_malloc)
+ free (buf);
return (n);
}
n = res_nsend(statp, buf, n, answer, anslen);
+ if (use_malloc)
+ free (buf);
if (n < 0) {
#ifdef DEBUG
if (statp->options & RES_DEBUG)
# Needed to provide a pointer to the XPG sigpause function.
__xpg_sigpause;
}
+ GLIBC_PRIVATE {
+ __sigtimedwait; __sigwait; __sigwaitinfo;
+ }
}
it is possible that we need two more characters in front of all the
other output. If the amount of memory we have to allocate is too
large use `malloc' instead of `alloca'. */
- buffer_malloced = chars_needed > 5000;
+ buffer_malloced = ! __libc_use_alloca (chars_needed * 2 * sizeof (wchar_t));
if (buffer_malloced)
{
wbuffer = (wchar_t *) malloc ((2 + chars_needed) * sizeof (wchar_t));
\
/* Allocate dynamically an array which definitely is long \
enough for the wide character version. */ \
- if (len < 8192) \
+ if (__libc_use_alloca (len * sizeof (wchar_t))) \
string = (CHAR_T *) alloca (len * sizeof (wchar_t)); \
else if ((string = (CHAR_T *) malloc (len * sizeof (wchar_t))) \
== NULL) \
if (prec >= 0) \
{ \
/* The string `s2' might not be NUL terminated. */ \
- if (prec < 32768) \
+ if (__libc_use_alloca (prec)) \
string = (char *) alloca (prec); \
else if ((string = (char *) malloc (prec)) == NULL) \
{ \
{ \
assert (__mbsinit (&mbstate)); \
s2 = (const wchar_t *) string; \
- if (len + 1 < 32768) \
+ if (__libc_use_alloca (len + 1)) \
string = (char *) alloca (len + 1); \
else if ((string = (char *) malloc (len + 1)) == NULL) \
{ \
{
/* We have to use a special buffer. The "32" is just a safe
bet for all the output which is not counted in the width. */
- if (width < (int) (32768 / sizeof (CHAR_T)))
+ if (__libc_use_alloca ((width + 32) * sizeof (CHAR_T)))
workend = ((CHAR_T *) alloca ((width + 32) * sizeof (CHAR_T))
+ (width + 32));
else
{
/* We have to use a special buffer. The "32" is just a safe
bet for all the output which is not counted in the width. */
- if (width < (int) (32768 / sizeof (CHAR_T)))
+ if (__libc_use_alloca ((width + 32) * sizeof (CHAR_T)))
workend = ((CHAR_T *) alloca ((width + 32) * sizeof (CHAR_T))
+ (width + 32));
else
if (prec > width
&& prec + 32 > (int)(sizeof (work_buffer) / sizeof (work_buffer[0])))
{
- if (prec < (int) (32768 / sizeof (CHAR_T)))
- workend = alloca (prec + 32) + (prec + 32);
+ if (__libc_use_alloca ((prec + 32) * sizeof (CHAR_T)))
+ workend = ((CHAR_T *) alloca ((prec + 32) * sizeof (CHAR_T)))
+ + (prec + 32);
else
{
workstart = (CHAR_T *) malloc ((prec + 32) * sizeof (CHAR_T));
if (MAX (prec, width) + 32 > (int) (sizeof (work_buffer)
/ sizeof (CHAR_T)))
{
- if (MAX (prec, width) < (int) (32768 / sizeof (CHAR_T)))
+ if (__libc_use_alloca ((MAX (prec, width) + 32)
+ * sizeof (CHAR_T)))
workend = ((CHAR_T *) alloca ((MAX (prec, width) + 32)
* sizeof (CHAR_T))
+ (MAX (prec, width) + 32));
Please note that the localedef programs makes sure that `position'
is not used at the first level. */
- if (s1len + s2len >= 16384)
+ if (! __libc_use_alloca (s1len + s2len))
{
idx1arr = (int32_t *) malloc ((s1len + s2len) * (sizeof (int32_t) + 1));
idx2arr = &idx1arr[s1len];
values. But since there is no limit on the length of the string
we have to use `malloc' if the string is too long. We should be
very conservative here. */
- if (srclen >= 16384)
+ if (! __libc_use_alloca (srclen))
{
idxarr = (int32_t *) malloc ((srclen + 1) * (sizeof (int32_t) + 1));
rulearr = (unsigned char *) &idxarr[srclen];
--- /dev/null
+extern inline int __libc_use_alloca (size_t size)
+{
+ return size <= __MAX_ALLOCA_CUTOFF;
+}
-/* Copyright (C) 1991, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1991,1995,1996,1997,1998,2002 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
Operates just like `read' (see <unistd.h>) except that data are
put in VECTOR instead of a contiguous buffer. */
ssize_t
-__readv (fd, vector, count)
+__libc_readv (fd, vector, count)
int fd;
const struct iovec *vector;
int count;
__set_errno (ENOSYS);
return -1;
}
-weak_alias (__readv, readv)
+strong_alias (__libc_readv, __readv)
+weak_alias (__libc_readv, readv)
stub_warning (readv)
#include <stub-tag.h>
/* Stub version of waitid.
- Copyright (C) 1997 Free Software Foundation, Inc.
+ Copyright (C) 1997, 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
#include <sys/wait.h>
int
-waitid (idtype, id, infop, options)
+__waitid (idtype, id, infop, options)
idtype_t idtype;
id_t id;
siginfo_t *infop;
__set_errno (ENOSYS);
return -1;
}
+weak_alias (__waitid, waitid)
-/* Copyright (C) 1991, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1991,1995,1996,1997,1998,2002 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
Operates just like `write' (see <unistd.h>) except that the data
are taken from VECTOR instead of a contiguous buffer. */
ssize_t
-__writev (fd, vector, count)
+__libc_writev (fd, vector, count)
int fd;
const struct iovec *vector;
int count;
__set_errno (ENOSYS);
return -1;
}
-weak_alias (__writev, writev)
+strong_alias (__libc_writev, __writev)
+weak_alias (__libc_writev, writev)
stub_warning (writev)
#include <stub-tag.h>
Operates just like `read' (see <unistd.h>) except that data are
put in VECTOR instead of a contiguous buffer. */
ssize_t
-__readv (int fd, const struct iovec *vector, int count)
+__libc_readv (int fd, const struct iovec *vector, int count)
{
char *buffer;
char *buffer_start;
/* Allocate a temporary buffer to hold the data. We should normally
use alloca since it's faster and does not require synchronization
with other threads. But we cannot if the amount of memory
- required is too large. Use 512k as the limit. */
- if (bytes < 512 * 1024)
+ required is too large. */
+ if (__libc_use_alloca (bytes))
buffer = (char *) __alloca (bytes);
else
{
return bytes_read;
}
-#ifndef __readv
-weak_alias (__readv, readv)
+#ifndef __libc_readv
+strong_alias (__libc_readv, __readv)
+weak_alias (__libc_readv, readv)
#endif
/* Pseudo implementation of waitid.
- Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+ Copyright (C) 1997, 1998, 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1997.
#include <assert.h>
int
-waitid (idtype, id, infop, options)
+__waitid (idtype, id, infop, options)
idtype_t idtype;
id_t id;
siginfo_t *infop;
return 0;
}
+weak_alias (__waitid, waitid)
Operates just like `write' (see <unistd.h>) except that the data
are taken from VECTOR instead of a contiguous buffer. */
ssize_t
-__writev (int fd, const struct iovec *vector, int count)
+__libc_writev (int fd, const struct iovec *vector, int count)
{
char *buffer;
register char *bp;
/* Allocate a temporary buffer to hold the data. We should normally
use alloca since it's faster and does not require synchronization
with other threads. But we cannot if the amount of memory
- required is too large. Use 512k as the limit. */
- if (bytes < 512 * 1024)
+ required is too large. */
+ if (__libc_use_alloca (bytes))
buffer = (char *) __alloca (bytes);
else
{
return bytes_written;
}
-#ifndef __writev
-weak_alias (__writev, writev)
+#ifndef __libc_writev
+strong_alias (__libc_writev, __writev)
+weak_alias (__libc_writev, writev)
#endif
-/* Copyright (C) 1991, 1995-1998, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1995-1998, 2000, 2002 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
Operates just like `read' (see <unistd.h>) except that data are
put in VECTOR instead of a contiguous buffer. */
ssize_t
-__readv (fd, vector, count)
+__libc_readv (fd, vector, count)
int fd;
const struct iovec *vector;
int count;
{
return kreadv (fd, vector, count, 0);
}
-strong_alias (__readv, readv)
+strong_alias (__libc_readv, __readv)
+weak_alias (__libc_readv, readv)
/* Pseudo implementation of waitid.
- Copyright (C) 1997, 1998, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1997, 1998, 2000, 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1997.
struct rusage *ru_loc, siginfo_t *infop);
int
-waitid (idtype, id, infop, options)
+__waitid (idtype, id, infop, options)
idtype_t idtype;
id_t id;
siginfo_t *infop;
return 0;
}
+weak_alias (__waitid, waitid)
-/* Copyright (C) 1991, 1995-1998, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1995-1998, 2000, 2002 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
Operates just like `read' (see <unistd.h>) except that data are
put in VECTOR instead of a contiguous buffer. */
ssize_t
-__writev (fd, vector, count)
+__libc_writev (fd, vector, count)
int fd;
const struct iovec *vector;
int count;
{
return kwritev (fd, vector, count, 0);
}
-strong_alias (__writev, writev)
+strong_alias (__libc_writev, __writev)
+weak_alias (__libc_writev, writev)
-/* Copyright (C) 1995, 1997, 1998, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1995, 1997, 1998, 2000, 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
int
-msgrcv (msqid, msgp, msgsz, msgtyp, msgflg)
+__libc_msgrcv (msqid, msgp, msgsz, msgtyp, msgflg)
int msqid;
void *msgp;
size_t msgsz;
return INLINE_SYSCALL (ipc, 5, IPCOP_msgrcv, msqid, msgsz, msgflg, __ptrvalue (&tmp));
}
+weak_alias (__libc_msgrcv, msgrcv)
-/* Copyright (C) 1995, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1995,1997,1998,1999,2000,2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, August 1995.
#include <bp-checks.h>
int
-msgsnd (msqid, msgp, msgsz, msgflg)
+__libc_msgsnd (msqid, msgp, msgsz, msgflg)
int msqid;
const void *msgp;
size_t msgsz;
return INLINE_SYSCALL (ipc, 5, IPCOP_msgsnd, msqid, msgsz,
msgflg, (void *) CHECK_N (msgp, msgsz));
}
+weak_alias (__libc_msgsnd, msgsnd)
/* We should deal with kernel which have a smaller UIO_FASTIOV as well
as a very big count. */
ssize_t
-__readv (fd, vector, count)
+__libc_readv (fd, vector, count)
int fd;
const struct iovec *vector;
int count;
return __atomic_readv_replacement (fd, vector, count);
}
-weak_alias (__readv, readv)
+strong_alias (__libc_readv, __readv)
+weak_alias (__libc_readv, readv)
-#define __readv static internal_function __atomic_readv_replacement
+#define __libc_readv static internal_function __atomic_readv_replacement
#include <sysdeps/posix/readv.c>
-/* Copyright (C) 1997, 1998, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 2000, 2002 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
return INLINE_SYSCALL (rt_sigtimedwait, 4, CHECK_SIGSET (set),
CHECK_1 (info), timeout, _NSIG / 8);
}
+libc_hidden_def (__sigtimedwait)
weak_alias (__sigtimedwait, sigtimedwait)
#else
# include <sysdeps/generic/sigtimedwait.c>
return ret;
}
+libc_hidden_def (__sigwait)
weak_alias (__sigwait, sigwait)
#else
# include <sysdeps/posix/sigwait.c>
-/* Copyright (C) 1997, 1998, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 2000, 2002 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
return INLINE_SYSCALL (rt_sigtimedwait, 4, CHECK_SIGSET (set),
CHECK_1 (info), NULL, _NSIG / 8);
}
+libc_hidden_def (__sigwaitinfo)
weak_alias (__sigwaitinfo, sigwaitinfo)
#else
# include <sysdeps/generic/sigwaitinfo.c>
bdflush EXTRA bdflush i:ii bdflush
capget EXTRA capget i:pp capget
capset EXTRA capset i:pp capset
+creat - creat i:si creat
create_module EXTRA create_module 3 create_module
delete_module EXTRA delete_module 3 delete_module
fdatasync - fdatasync i:i fdatasync
removexattr EXTRA removexattr i:ss removexattr
lremovexattr EXTRA lremovexattr i:ss lremovexattr
fremovexattr EXTRA fremovexattr i:is fremovexattr
-
/* We should deal with kernel which have a smaller UIO_FASTIOV as well
as a very big count. */
ssize_t
-__writev (fd, vector, count)
+__libc_writev (fd, vector, count)
int fd;
const struct iovec *vector;
int count;
return __atomic_writev_replacement (fd, vector, count);
}
-weak_alias (__writev, writev)
+strong_alias (__libc_writev, __writev)
+weak_alias (__libc_writev, writev)
-#define __writev static internal_function __atomic_writev_replacement
+#define __libc_writev static internal_function __atomic_writev_replacement
#include <sysdeps/posix/writev.c>
# s*
semctl; semget; semop; shmat; shmctl; shmdt; shmget;
}
+ GLIBC_2.3.1 {
+ # Cancellation point entries.
+ __libc_msgrcv; __libc_msgsnd;
+ }
}
git://sourceware.org / glibc.git / commitdiff