glibc/include/alloca.h

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#ifndef _ALLOCA_H
1995-02-18 02:27:10 +01:00
#include <stdlib/alloca.h>
#include <stackinfo.h>
Update. 1998-08-09 09:40 Ulrich Drepper <drepper@cygnus.com> * nss/nss_files/files-XXX.c (internal_getent): In case of an read error do not trust errno value, set it to ENOENT. * db2/db_185.h: Move __ prototypes into include/* header. * dirent/dirent.h: Likewise. * elf/dlfcn.h: Likewise. * gmon/sys/gmon.h: Likewise. * grp/grp.h: Likewise. * intl/libintl.h: Likewise. * io/fcntl.h: Likewise. * io/sys/stat.h: Likewise. * io/sys/statfs.h: Likewise. * io/sys/statvfs.h: Likewise. * libio/stdio.h: Likewise. * login/utmp.h: Likewise. * misc/mntent.h: Likewise. * misc/search.h: Likewise. * misc/sys/file.h: Likewise. * misc/sys/ioctl.h: Likewise. * misc/sys/select.h: Likewise. * misc/sys/uio.h: Likewise. * misc/sys/ustat.h: Likewise. * posix/unistd.h: Likewise. * posix/sys/times.h: Likewise. * posix/sys/wait.h: Likewise. * pwd/pwd.h: Likewise. * resource/ulimit.h: Likewise. * resource/sys/resource.h: Likewise. * setjmp/setjmp.h: Likewise. * shadow/shadow.h: Likewise. * signal/signal.h: Likewise. * socket/sys/socket.h: Likewise. * stdlib/alloca.h: Likewise. * stdlib/stdlib.h: Likewise. * string/string.h: Likewise. * sysdeps/generic/sys/mman.h: Likewise. * sysdeps/unix/bsd/osf/sys/mman.h: Likewise. * sysdeps/unix/bsd/sun/sunos4/sys/mman.h: Likewise. * sysdeps/unix/bsd/ultrix4/sys/mman.h: Likewise. * sysdeps/unix/sysv/irix4/sys/mman.h: Likewise. * sysdeps/unix/sysv/linux/bits/sched.h: Likewise. * sysdeps/unix/sysv/linux/sys/mman.h: Likewise. * termios/termios.h: Likewise. * time/time.h: Likewise. * time/sys/time.h: Likewise. * wcsmbs/wchar.h: Likewise. * include/alloca.h: Add __ prototypes here. * include/db_185.h: Likewise. * include/dirent.h: Likewise. * include/dlfcn.h: Likewise. * include/fcntl.h: Likewise. * include/grp.h: Likewise. * include/libintl.h: Likewise. * include/mntent.h: Likewise. * include/pwd.h: Likewise. * include/sched.h: Likewise. * include/search.h: Likewise. * include/setjmp.h: Likewise. * include/shadow.h: Likewise. * include/signal.h: Likewise. * include/stdio.h: Likewise. * include/stdlib.h: Likewise. * include/string.h: Likewise. * include/termios.h: Likewise. * include/time.h: Likewise. * include/ulimit.h: Likewise. * include/unistd.h: Likewise. * include/utmp.h: Likewise. * include/wchar.h: Likewise. * include/sys/file.h: Likewise. * include/sys/gmon.h: Likewise. * include/sys/ioctl.h: Likewise. * include/sys/mman.h: Likewise. * include/sys/resource.h: Likewise. * include/sys/select.h: Likewise. * include/sys/socket.h: Likewise. * include/sys/stat.h: Likewise. * include/sys/statfs.h: Likewise. * include/sys/time.h: Likewise. * include/sys/times.h: Likewise. * include/sys/uio.h: Likewise. * include/sys/wait.h: Likewise. * Makeconfig (+includes): Search in $(..)include first. * io/fstat.c: Undefine __fstat. * io/lstat.c: Undefine __lstat. * wcsmbs/Versions: Add __mbrlen.
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#undef __alloca
/* Now define the internal interfaces. */
Update. * include/aio.h: Remove __THROW from internal interfaces. __THROW is only need in external header files that might be compiled by a C++ compiler. * include/alloca.h: Likewise. * include/db.h: Likewise. * include/dirent.h: Likewise. * include/execinfo.h: Likewise. * include/fpu_control.h: Likewise. * include/glob.h: Likewise. * include/grp.h: Likewise. * include/libintl.h: Likewise. * include/math.h: Likewise. * include/math.h: Likewise. * include/mntent.h: Likewise. * include/mntent.h: Likewise. * include/netdb.h: Likewise. * include/pwd.h: Likewise. * include/sched.h: Likewise. * include/shadow.h: Likewise. * include/stdlib.h: Likewise. * include/sys/file.h: Likewise. * include/sys/gmon.h: Likewise. * include/sys/ioctl.h: Likewise. * include/sys/socket.h: Likewise. * include/sys/stat.h: Likewise. * include/sys/sysinfo.h: Likewise. * include/sys/time.h: Likewise. * include/sys/times.h: Likewise. * include/sys/uio.h: Likewise. * include/sys/wait.h: Likewise. * include/termios.h: Likewise. * include/time.h: Likewise. * include/ulimit.h: Likewise. * include/utmp.h: Likewise. * include/wchar.h: Likewise. 1999-11-22 Andreas Jaeger <aj@suse.de> * sunrpc/rpc_clntout.c (printbody): Fix -CLMNab output. Patch by Jerry Perkins <jrperkins@iname.com>, closes PR libc/1456+1457. 1999-11-22 Jakub Jelinek <jakub@redhat.com> * sysdeps/generic/siglist.h: Avoid declaring the same field twice if SIGPWR is defined to SIGLOST. * sysdeps/sparc/sparc32/memcpy.S: bcopy takes size_t argument, not signed, so we should not special case it for negative args. * sysdeps/sparc/sparc32/sparcv9/memmove.c: Don't use generic memmove, use the one provided in memcpy.S. * sysdeps/sparc/sparc64/memcpy.S: bcopy should handle overlapping copies like memmove, while the previous version worked like memcpy. Implement optimized assembly memmove. * sysdeps/sparc/sparc64/memmove.c: New file. 1999-11-23 Ulrich Drepper <drepper@cygnus.com> * po/cs.po: Update from translators. 1999-11-23 Andreas Jaeger <aj@suse.de>
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extern void *__alloca (size_t __size);
Update. 1998-08-09 09:40 Ulrich Drepper <drepper@cygnus.com> * nss/nss_files/files-XXX.c (internal_getent): In case of an read error do not trust errno value, set it to ENOENT. * db2/db_185.h: Move __ prototypes into include/* header. * dirent/dirent.h: Likewise. * elf/dlfcn.h: Likewise. * gmon/sys/gmon.h: Likewise. * grp/grp.h: Likewise. * intl/libintl.h: Likewise. * io/fcntl.h: Likewise. * io/sys/stat.h: Likewise. * io/sys/statfs.h: Likewise. * io/sys/statvfs.h: Likewise. * libio/stdio.h: Likewise. * login/utmp.h: Likewise. * misc/mntent.h: Likewise. * misc/search.h: Likewise. * misc/sys/file.h: Likewise. * misc/sys/ioctl.h: Likewise. * misc/sys/select.h: Likewise. * misc/sys/uio.h: Likewise. * misc/sys/ustat.h: Likewise. * posix/unistd.h: Likewise. * posix/sys/times.h: Likewise. * posix/sys/wait.h: Likewise. * pwd/pwd.h: Likewise. * resource/ulimit.h: Likewise. * resource/sys/resource.h: Likewise. * setjmp/setjmp.h: Likewise. * shadow/shadow.h: Likewise. * signal/signal.h: Likewise. * socket/sys/socket.h: Likewise. * stdlib/alloca.h: Likewise. * stdlib/stdlib.h: Likewise. * string/string.h: Likewise. * sysdeps/generic/sys/mman.h: Likewise. * sysdeps/unix/bsd/osf/sys/mman.h: Likewise. * sysdeps/unix/bsd/sun/sunos4/sys/mman.h: Likewise. * sysdeps/unix/bsd/ultrix4/sys/mman.h: Likewise. * sysdeps/unix/sysv/irix4/sys/mman.h: Likewise. * sysdeps/unix/sysv/linux/bits/sched.h: Likewise. * sysdeps/unix/sysv/linux/sys/mman.h: Likewise. * termios/termios.h: Likewise. * time/time.h: Likewise. * time/sys/time.h: Likewise. * wcsmbs/wchar.h: Likewise. * include/alloca.h: Add __ prototypes here. * include/db_185.h: Likewise. * include/dirent.h: Likewise. * include/dlfcn.h: Likewise. * include/fcntl.h: Likewise. * include/grp.h: Likewise. * include/libintl.h: Likewise. * include/mntent.h: Likewise. * include/pwd.h: Likewise. * include/sched.h: Likewise. * include/search.h: Likewise. * include/setjmp.h: Likewise. * include/shadow.h: Likewise. * include/signal.h: Likewise. * include/stdio.h: Likewise. * include/stdlib.h: Likewise. * include/string.h: Likewise. * include/termios.h: Likewise. * include/time.h: Likewise. * include/ulimit.h: Likewise. * include/unistd.h: Likewise. * include/utmp.h: Likewise. * include/wchar.h: Likewise. * include/sys/file.h: Likewise. * include/sys/gmon.h: Likewise. * include/sys/ioctl.h: Likewise. * include/sys/mman.h: Likewise. * include/sys/resource.h: Likewise. * include/sys/select.h: Likewise. * include/sys/socket.h: Likewise. * include/sys/stat.h: Likewise. * include/sys/statfs.h: Likewise. * include/sys/time.h: Likewise. * include/sys/times.h: Likewise. * include/sys/uio.h: Likewise. * include/sys/wait.h: Likewise. * Makeconfig (+includes): Search in $(..)include first. * io/fstat.c: Undefine __fstat. * io/lstat.c: Undefine __lstat. * wcsmbs/Versions: Add __mbrlen.
1998-08-09 19:39:48 +02:00
#ifdef __GNUC__
# define __alloca(size) __builtin_alloca (size)
#endif /* GCC. */
Update. 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.
2002-10-09 11:42:48 +02:00
extern int __libc_use_alloca (size_t size) __attribute__ ((const));
extern int __libc_alloca_cutoff (size_t size) __attribute__ ((const));
libc_hidden_proto (__libc_alloca_cutoff)
Update. 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.
2002-10-09 11:42:48 +02:00
#define __MAX_ALLOCA_CUTOFF 65536
#include <allocalim.h>
#ifndef stackinfo_alloca_round
# define stackinfo_alloca_round(l) (((l) + 15) & -16)
#endif
#if _STACK_GROWS_DOWN
# define extend_alloca(buf, len, newlen) \
(__typeof (buf)) ({ size_t __newlen = stackinfo_alloca_round (newlen); \
char *__newbuf = __alloca (__newlen); \
if (__newbuf + __newlen == (char *) buf) \
len += __newlen; \
else \
len = __newlen; \
__newbuf; })
#elif _STACK_GROWS_UP
# define extend_alloca(buf, len, newlen) \
(__typeof (buf)) ({ size_t __newlen = stackinfo_alloca_round (newlen); \
char *__newbuf = __alloca (__newlen); \
char *__buf = (buf); \
if (__buf + len == __newbuf) \
{ \
len += __newlen; \
__newbuf = __buf; \
} \
else \
len = __newlen; \
__newbuf; })
#else
# define extend_alloca(buf, len, newlen) \
__alloca (((len) = (newlen)))
#endif
#if defined stackinfo_get_sp && defined stackinfo_sub_sp
# define alloca_account(size, avar) \
({ void *old__ = stackinfo_get_sp (); \
void *m__ = __alloca (size); \
avar += stackinfo_sub_sp (old__); \
m__; })
# define extend_alloca_account(buf, len, newlen, avar) \
({ void *old__ = stackinfo_get_sp (); \
void *m__ = extend_alloca (buf, len, newlen); \
avar += stackinfo_sub_sp (old__); \
m__; })
#else
# define alloca_account(size, avar) \
({ size_t s__ = (size); \
avar += s__; \
__alloca (s__); })
# define extend_alloca_account(buf, len, newlen, avar) \
({ size_t s__ = (newlen); \
avar += s__; \
extend_alloca (buf, len, s__); })
#endif
#endif