60478656fa
* elf/elf.h (AT_GID): Fix typo: Read -> Real. * misc/efgvt_r.c: New file. Reentrant version of [efg]cvt functions. * misc/efgcvt.c: Rewrite to use reentrant functions. * misc/hsearch_r.c: New file. Reentrant version of functions from hsearch family. * misc/hsearch.c, misc/tsearch.c: New files. * misc/Makefile (routines): Add efgcvt_r, hsearch_r, hsearch, tsearch. * posix/unistd.h (ttyname_r): Add prototype for new function. * stdlib/drand48_r.c, stdlib/erand48_r.c, stdlib/jrand48_r.c, stdlib/lrand48_r.c, stdlib/mrand48_r.c, stdlib/nrand48_r.c, stdlib/seed48_r.c, stdlib/srand48_r.c, stdlib/lcong48_r.c, stdlib/drand48-iter.c: New files implementing reentrant versions of functions from drand48 family. * stdlib/seed48.c, stdlib/drand48.c, stdlib/erand48.c, stdlib/jrand48.c, stdlib/lrand48.c, stdlib/mrand48.c, stdlib/nrand48.c, stdlib/srand48.c, stdlib/lcong48.c: Rewrite to use reentrant versions. * stdlib/a64l.c, stdlib/l64a.c: New files. Implement a64l() and l64a() functions from SysV library. * stdlib/Makefile (routines): Add drand48_r, erand48_r, lrand48_r, nrand48_r, mrand48_r, jrand48_r, srand48_r, seed48_r, lcong48_r, drand48-iter, a64l, l64a. * stdlib/stdlib.h: Declare them. * stdlib/random_r.c: New file. Reentrant version of functions from random family. * stdlib/stdlib.h: Declare them. * stdlib/random.c: Rewrite to use reentrant functions. * string/strerror_r.c: New file. Reentrant version. * string/strerror.c: Change for new _strerror_internal form. * string/Makefile (routines): Add strerror_r. * sysdeps/generic/dl-sysdep.c (_dl_sysdep_start): Set default value of user_entry to `_start'. Close AT_ENTRY case with `break'. * sysdeps/generic/strstr.c: New and much faster implementation by Stephen R. van den Berg. * sysdeps/generic/_strerror.c: _strerror_internal now takes three argument and has and explicit buffer length. * sysdeps/mach/_strerror.c: Change for new interface with three arguments. * stdio/perror.c, stdio/vfprintf.c: Callers changed. * sysdeps/mach/hurd/ttyname_r.c: New file. Reentrant version. * sysdeps/posix/ttyname_r.c: New file. Reentrant version. * sysdeps/stub/ttyname_r: New file. Define as dummy function. * sysdeps/posix/utimes.c: Include <utime.h> for prototype. (utimes): First parameter to utime must be file, not path. * sysdeps/posix/sysconf.c (__sysconf): Test for CLK_TCK in case _SC_CLK_TCK and return it when available. Test for STREAM_MAX in case _SC_STREAM_MAX and return it when available. Add case for _SC_2_LOCALEDEF which is now available. * posix/sys/types.h [__USE_SVID] (key_t): New type. * sysvipc/Makefile, sysvipc/ftok.c, sysvipc/sys/ipc.h, sysvipc/sys/msg.h, sysvipc/sys/sem.h, sysvipc/sys/shm.h, sysdeps/stub/sys/msq_buf.h, sysdeps/stub/sys/sem_buf.h, sysdeps/stub/sys/shm_buf.h, sysdeps/stub/sys/ipc_buf.h, sysdeps/stub/semctl.c, sysdeps/stub/semget.c, sysdeps/stub/semop.c, sysdeps/stub/shmat.c, sysdeps/stub/shmctl.c, sysdeps/stub/shmdt.c, sysdeps/stub/shmget.c, sysdeps/stub/msgctl.c, sysdeps/stub/msgget.c, sysdeps/stub/msgrcv.c, sysdeps/stub/msgsnd.c: New files. Add implementation of System V IPC.
107 lines
2.5 KiB
C
107 lines
2.5 KiB
C
/* Operating system support for run-time dynamic linker. Generic Unix version.
|
|
Copyright (C) 1995 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., 675 Mass Ave,
|
|
Cambridge, MA 02139, USA. */
|
|
|
|
#include <elf.h>
|
|
#include <sys/types.h>
|
|
#include <fcntl.h>
|
|
#include <link.h>
|
|
#include <unistd.h>
|
|
|
|
extern int _dl_argc;
|
|
extern char **_dl_argv;
|
|
extern char **_environ;
|
|
extern void _start (void);
|
|
|
|
Elf32_Addr
|
|
_dl_sysdep_start (void **start_argptr,
|
|
void (*dl_main) (const Elf32_Phdr *phdr, Elf32_Word phnum,
|
|
Elf32_Addr *user_entry))
|
|
{
|
|
const Elf32_Phdr *phdr;
|
|
Elf32_Word phnum;
|
|
Elf32_Addr user_entry;
|
|
Elf32_auxv_t *av;
|
|
uid_t uid, euid;
|
|
gid_t gid, egid;
|
|
|
|
user_entry = (Elf32_Addr) &_start;
|
|
_dl_argc = *(int *) start_argptr;
|
|
_dl_argv = start_argptr + 1;
|
|
_environ = &_dl_argv[_dl_argc + 1];
|
|
start_argptr = (void **) _environ;
|
|
while (*start_argptr)
|
|
++start_argptr;
|
|
|
|
for (av = ++start_argptr; av->a_type != AT_NULL; ++av)
|
|
switch (av->a_type)
|
|
{
|
|
case AT_PHDR:
|
|
phdr = av->a_un.a_ptr;
|
|
break;
|
|
case AT_PHNUM:
|
|
phnum = av->a_un.a_val;
|
|
break;
|
|
case AT_ENTRY:
|
|
user_entry = av->a_un.a_val;
|
|
break;
|
|
case AT_UID:
|
|
uid = av->a_un.a_val;
|
|
break;
|
|
case AT_GID:
|
|
gid = av->a_un.a_val;
|
|
break;
|
|
case AT_EUID:
|
|
euid = av->a_un.a_val;
|
|
break;
|
|
case AT_EGID:
|
|
egid = av->a_un.a_val;
|
|
break;
|
|
}
|
|
|
|
_dl_secure = uid != euid || gid != egid;
|
|
|
|
(*dl_main) (phdr, phnum, &user_entry);
|
|
start_argptr[-1] = (void *) user_entry;
|
|
}
|
|
|
|
int
|
|
_dl_sysdep_open_zero_fill (void)
|
|
{
|
|
return open ("/dev/zero", O_RDONLY);
|
|
}
|
|
|
|
#include <stdarg.h>
|
|
|
|
void
|
|
_dl_sysdep_fatal (const char *msg, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
va_start (ap, msg);
|
|
do
|
|
{
|
|
size_t len = strlen (msg);
|
|
write (STDERR_FILENO, msg, len);
|
|
msg = va_arg (ap, const char *);
|
|
} while (msg);
|
|
va_end (ap);
|
|
|
|
_exit (127);
|
|
}
|