* sysdeps/mach/hurd/getlogin_r.c: New file.
Wed Jun 5 02:11:30 1996 Ulrich Drepper <drepper@cygnus.com>
* io/Makefile (routines): Add ttyname_r.
* resolv/res_debug.c, resolv/resolv.h: Update from bind-4.3.4-T4A.
* sysdeps/libm-i387/e_asinl.S, sysdeps/libm-i387/e_atan2l.S,
sysdeps/libm-i387/e_expl.S, sysdeps/libm-i387/e_fmodl.S,
sysdeps/libm-i387/e_log10l.S, sysdeps/libm-i387/e_logl.S,
sysdeps/libm-i387/e_remainderl.S, sysdeps/libm-i387/e_scalbl.S,
sysdeps/libm-i387/e_sqrtl.S, sysdeps/libm-i387/s_atanl.S,
sysdeps/libm-i387/s_cosl.S, sysdeps/libm-i387/s_ilogbl.S,
sysdeps/libm-i387/s_log1pl.S, sysdeps/libm-i387/s_logbl.S,
sysdeps/libm-i387/s_scalbnl.S, sysdeps/libm-i387/s_sinl.S,
sysdeps/libm-i387/s_tanl.S: New files. i387 assembler versions
of `long double' math functions.
* sysdeps/libm-ieee754/k_standard.c: Add handling for errors
in long double functions.
* sysdeps/libm-ieee754/s_ilogbl.c, sysdeps/libm-ieee754/s_logbl.c,
sysdeps/libm-ieee754/s_modfl.c: New files. Generic versions
of `long double' math functions.
* sysdeps/libm-ieee754/s_isinf.c [NO_LONG_DOUBLE]: Add string
alias for __isinfl.
* sysdeps/libm-ieee754/w_acoshl.c, sysdeps/libm-ieee754/w_acosl.c,
sysdeps/libm-ieee754/w_asinl.c, sysdeps/libm-ieee754/w_atan2l.c,
sysdeps/libm-ieee754/w_atanhl.c, sysdeps/libm-ieee754/w_cabsl.c,
sysdeps/libm-ieee754/w_coshl.c, sysdeps/libm-ieee754/w_dreml.c,
sysdeps/libm-ieee754/w_expl.c, sysdeps/libm-ieee754/w_fmodl.c,
sysdeps/libm-ieee754/w_gammal.c, sysdeps/libm-ieee754/w_gammal_r.c,
sysdeps/libm-ieee754/w_hypotl.c, sysdeps/libm-ieee754/w_j0l.c,
sysdeps/libm-ieee754/w_j1l.c, sysdeps/libm-ieee754/w_jnl.c,
sysdeps/libm-ieee754/w_lgammal.c, sysdeps/libm-ieee754/w_lgammal_r.c,
sysdeps/libm-ieee754/w_log10l.c, sysdeps/libm-ieee754/w_logl.c,
sysdeps/libm-ieee754/w_powl.c, sysdeps/libm-ieee754/w_remainderl.c,
sysdeps/libm-ieee754/w_scalbl.c, sysdeps/libm-ieee754/w_sinhl.c,
sysdeps/libm-ieee754/w_sqrtl.c: New files. Wrapper functions
around long double function implementations.
* sysdeps/posix/ttyname_r.c (ttyname_r): Use _D_EXACT_NAMLEN
to determine length of directory entry name.
* posix/Makefile (routines): Add getlogin_r.
* posix/unistd.h: Add prototype for getlogin_r.
* sysdeps/stub/getlogin_r.c: New file. Reentrant version of
getlogin function, specified in P1003.1c/D6. Stub version.
* sysdeps/unix/getlogin.c (getlogin): Use ttyname_r instead of
ttyname. This avoids saving and restoring the old content.
Also use setutent_r, getutline_r and endutent_r instead of
accing UTMP file directly.
* sysdeps/unix/getlogin_r.c: New file. Reentrant version of
getlogin function, specified in P1003.1c/D6.
Tue Jun 4 20:10:09 1996 J.T. Conklin <jtc@cygnus.com>
* sysdeps/libm-i387/s_finitef.S: Fix mask for exponent.
* elf/dl-lookup.c (_dl_lookup_symbol): Grok magical undefined symbols
_GNU_libc_dl_{open,close,symbol} and resolve them to dl functions.
* elf/rtld.c (rtld_map): Renamed to _dl_rtld_map, made global.
* elf/link.h: Declare _dl_rtld_map.
* elf/dl-lookup.c (_dl_symbol_value): New function.
* elf/link.h: Declare it.
stdio-common/vfscanf.c: Prepare for reentrant libio.
Used in reentrant libio.
* elf/linux-compat.c (_init): Pass reloc_addr arg to _dl_lookup_symbol.
* elf/dl-lookup.c (_dl_lookup_symbol): Use l_searchlist.
* elf/dl-deps.c: New file.
* elf/Makefile (rtld-routines): Add dl-deps.
* elf/link.h: Declare _dl_map_object_deps, _dl_open.
* elf/rtld.c (dl_main): Use _dl_map_object_deps.
* elf/dlopen.c: Use _dl_open.
* elf/rtld.c (dl_main): Remove BEFORE_RTLD variable and list
frobnication based on its value. Detach RTLD_MAP from the chain if
its l_opencount is zero after loading deps.
* elf/dlfcn.h (RTLD_BINDING_MASK): New macro.
* elf/link.h (struct link_map): Replace l_deps_loaded flag member with
`struct link_map **l_searchlist' and `unsigned int l_nsearchlist'.
* elf/dl-lookup.c (_dl_lookup_symbol): Make SYMBOL_SCOPE arg an array
of two link_map ptrs. Search the maps in the l_searchlist of each
elt that is not null.
* elf/dl-reloc.c (_dl_relocate_object): Pass proper SCOPE array.
* elf/dl-runtime.c: Likewise.
* elf/dlsym.c: Likewise.
* elf/rtld.c (dl_main): Likewise.
* elf/dl-minimal.c (realloc): Support realloc of the block most
recently returned by the minimal malloc.
* intl/localealias.c, intl/dcgettext.c [_LIBC]: Define HAVE_ALLOCA.
* elf/dl-lookup.c (_dl_lookup_symbol): Take new arg RELOC_ADDR and
don't allow a defn resolving to that address.
* elf/link.h: Update prototype and comment.
* elf/dl-runtime.c (fixup): Define local `resolve' function and pass
it to elf_machine_relplt.
* elf/dl-reloc.c (_dl_relocate_object: resolve): Take new arg
RELOC_ADDR and pass it through to _dl_lookup_symbol.
* elf/do-rel.h (elf_dynamic_do_rel): Pass RESOLVE to elf_machine_rel
instead of calling it ourselves and passing its results.
(elf_dynamic_do_rel): RESOLVE fn takes new arg RELOC_ADDR.
* elf/rtld.c (dl_main): Pass 0 for RELOC_ADDR to _dl_lookup_symbol.
* sysdeps/i386/dl-machine.h (elf_machine_rel): Remove SYM_LOADADDR
arg. Add RESOLVE function ptr arg. Call *RESOLVE as necessary.
* sysdeps/m68k/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/stub/dl-machine.h: Likewise.
* csu/initfini.c (_fini): Add extern decl for i_am_not_a_leaf.
* elf/dlfcn.h (dl_open_mode): Enumerated type removed.
(RTLD_LAZY, RTLD_NOW): Define these as macros instead.
(RTLD_GLOBAL): New macro.
(dlopen): Take arg of type int instead of dl_open_mode.
* elf/dlopen.c: Likewise.
* math/math.h (_Mldbl): New macro, either produces L suffix or not.
(M_*): Use it for these constants.
* limits.h: Change MB_LEN_MAX to 6. A 31-bit ISO 10646
character in UTF-8 encoding has that many bytes.
* locale/langinfo.h: New element _NL_CTYPE_MB_CUR_MAX.
* locale/categories.def: Add description of field _NL_CTYPE_MB_CUR_MAX.
* locale/Makefile (routines): Add mb_cur_max.
* locale/mb_cur_max.c: New file. This function gets called
when the macro MB_CUR_MAX is used.
* locale/C-ctype.c: Initialize new mb_cur_max field.
* locale/localeinfo.h: Change magic value because of incompatible
change.
* locale/programs/ld-ctype.c: Determine value of mb_cur_max
according to current character set and write it out with the rest.
* stdlib/stdlib.h (MB_CUR_MAX): Not constant anymore. Get value
according to currently used locale for catefory LC_CTYPE by
calling the function __ctype_get_mb_cur_max.
Tue May 28 03:27:46 1996 Ulrich Drepper <drepper@cygnus.com>
* FAQ: Fix some typos.
Tell that for Linux the kernel header files are necessary.
* PROJECTS: New file. List of open jobs for glibc.
* Makefile (distribute): Add PROJECTS.
* crypt/GNUmakefile (headers): New variable. Mention crypt.h.
* crypt/crypt.h: Header for crypt functions.
* elf/elf.h: Add some new constants from recent Cygnus ELF
header files.
* login/getutid_r.c: Test for correct type.
Don't depend on ut_type and ut_id unless _HAVE_UT_TYPE and
_HAVE_UT_ID resp. are defined.
Make really compliant with specification.
* login/getutline_r.c, login/pututline_r.c: Don't depend on
ut_type and ut_id unless _HAVE_UT_TYPE and _HAVE_UT_ID resp. are
defined.
Make really compliant with specification.
* login/setutent_r.c: Don't depend on ut_type and ut_id unless
_HAVE_UT_TYPE and _HAVE_UT_ID resp. are defined.
* login/login.c, login/logout.c, login/logwtmp.c: Complete
rewrite. Now based on getut*/setut* functions.
* stdlib/strtol.c: Undo changes of Wed May 22 01:48:54 1996.
This prevented using this file in other GNU packages.
* sysdeps/gnu/utmpbits.h: Define _HAVE_UT_TYPE, _HAVE_UT_ID,
and _HAVE_UT_TV because struct utmp has these members.
* sysdeps/libm-i387/e_exp.S: Correct exp(+-Inf) case.
* utmp.h: New file. Wrapper around login/utmp.h.
* elf/dl-error.c (struct catch): New type.
(catch): New static variable, struct catch *.
(catch_env, signalled_errstring, signalled_objname): Variables removed.
(_dl_signal_error): If CATCH is non-null, set its errstring and
objname members and jump to CATCH->env. If it is null, call
_dl_sysdep_fatal with a standard message.
* elf/rtld.c (dl_main): Explode `doit' function into dl_main's body.
No longer use _dl_catch_error.
* elf/rtld.c (dl_main): Call _dl_sysdep_start_cleanup after
_dl_relocate_object loop. Avoid relocating RTLD_MAP in that loop, and
do it individually if necessary after _dl_sysdep_start_cleanup call.
* stdlib/Makefile (mpn-routines): Add divrem.
Tue Mar 26 22:54:14 Ulrich Drepper <drepper@gnu.ai.mit.edu>
* stdio-common/printf_fp.c (__printf_fp): Use mpn_divmod
instead of __mpn_divmod.
Wed Mar 27 10:26:21 1996 David Mosberger-Tang <davidm@azstarnet.com>
* sysdeps/alpha/setjmp.S: Must establish global pointer before
address of __sigsetjmp_aux can be loaded.
Wed Mar 27 02:23:19 1996 Ulrich Drepper <drepper@gnu.ai.mit.edu>
* sysdeps/i386/i586/memset.S: New file. Highly optimized
version for i586 contributed by Torbjorn Granlund.
Adapted for use as bzero.
* sysdeps/i386/i586/bzero.S: Use sysdeps/i386/i586/memset.S
code to implement bzero().
Tue Mar 26 20:01:17 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>
* stdlib/Makefile (mpn-routines): Remove divmod.
* elf/dl-load.c (_dl_map_object_from_fd): Always set L->l_type; if not
lt_executable, then lt_library.
* elf/rtld.c (dl_main): Don't set NEW->l_type after _dl_map_object.
Wed Mar 20 00:08:23 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/unix/sysv/linux/syscalls.list: Remove gtty and stty.
Tue Mar 19 16:31:06 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/unix/sysv/linux/termbits.h (CRTSCTS, CBAUDEX, VEOL,
VEOL2, VMIN, VTIME): Corrected.
(PAGEOUT, WRAP, VDSUSP): Deleted.
* sysdeps/unix/readdir.c: Test [! _DIRENT_HAVE_D_RECLEN] instead of
(sizeof (DP->d_name) > 1) to detect fixed-size dir entries.
Fri Dec 8 13:04:51 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* posix/glob.c: Implement new options GLOB_ALTDIRFUNC, GLOB_BRACE,
GLOB_TILDE, GLOB_NOMAGIC.
(glob): Use stat instead of lstat to determine directoriness.
* posix/glob.h (GLOB_ALTDIRFUNC, GLOB_BRACE, GLOB_NOMAGIC, GLOB_TILDE):
New flag bits.
(__GLOB_FLAGS): Include them.
(glob_t): New members gl_closedir, gl_readdir, gl_opendir, gl_lstat,
gl_stat.
* malloc/malloc.c (align): Don't check contiguity and call abort.
* hurd/hurdsig.c (post_reply): Function removed.
(abort_thread, abort_all_rpcs, _hurdsig_abort_rpcs): Don't call it.
Take single callback fn arg instead of reply port and type.
(_hurd_internal_post_signal): Callers changed.
Cache reply stub fn ptr in local var before UNTRACED might be changed.
* sysdeps/mach/hurd/mmap.c: Cope with a null write memobj for
PROT_READ|PROT_WRITE copy mapping. Pass a proper vm_inherit_t to
vm_map.
* elf/rtld.c (_dl_start): For --list, do output and exit before
relocating.
* sysdeps/mach/hurd/dl-sysdep.c (_dl_sysdep_start_cleanup): New
function.
(_dl_sysdep_start): Move cleanup code there.
* Makeconfig (default-rpath): New variable.
(link-libc): Use it.
* elf/Makefile (ld.so): Pass -rpath=$(default-rpath).
* elf/rtld.c (_dl_rpath): New variable.
(_dl_start): Set it from rtld_map's DT_RPATH.
Call _dl_setup_hash on rtld_map.
(dl_main): Cache address of _exit in variable before relocating,
and use that in later calls. Call _dl_sysdep_start_cleanup before
relocating. Keep track of dependency order while loading; remove
rtld_map from chain, and reinsert in proper order if there is a
dependency on it.
* sysdeps/generic/Makefile (make_siglist): Pass
-DSIGNUM_H=... with config's signum.h location.
* sysdeps/generic/make_siglist.c: Include SIGNUM_H to define
signal numbers.
(HAVE_STRSIGNAL, HAVE_PSIGNAL): Define these before including signame.c
(main): Deansideclize output.
* elf/dl-load.c (_dl_map_object): Use _dl_rpath variable in place
of DEFAULT_RPATH macro.
* elf/Makefile: Undo last change.
* sysdeps/mach/hurd/dl-sysdep.c (free): Don't abort, just nop.
* sysdeps/mach/hurd/dl-sysdep.c: Include _itoa.h from stdio-common
instead of stdio.
(_dl_sysdep_start): If passed user entry is zero and
EXEC_STACK_ARGS flag set, reset user entry to &_start.
* elf/rtld.c (dl_main): Only call _dl_setup_hash if there is a
DT_HASH element.
* libc-symbols.h [HAVE_ELF] (symbol_set_declare): Gratuitously
repeat weak decl using weak_symbol macro, in case using broken GCC
(<2.8).
Wed Nov 15 18:49:55 1995 Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>
* sysdeps/i386/isnanl.c: New file.
* sysdeps/i386/isinfl.c: New file.
* elf/linux-compat.c: New file.
* elf/Makefile (distribute): Add linux-compat.c.
(generated): Add librtld.so.
[$(config-os)=linux*] (extra-objs): Add linux-compat.so.
[$(config-os)=linux*] (extra-objs): Add ld-linux.so.1.
(librtld.so): New target.
(ld.so, ld-linux.so.1): Make from librtld.so.
* elf/rtld.c (dl_main): Instead of weak call to _dl_compat_init,
call our own DT_INIT if we have one (and then clear it).
(__dgettext): New weak function.
* intl/localealias.c (read_alias_file): Avoid sprintf; use memcpy
by hand instead.
* sysdeps/generic/_strerror.c (_strerror_internal): Use _itoa
instead of snprintf.
* sysdeps/mach/_strerror.c (_strerror_internal): Don't write
BUF[BUFLEN].
* elf/rtld.c (rtld_map): New static variable.
(_dl_start): Use a differently named local BOOTSTRAP_MAP for the
bootstrapping. Then copy data into `rtld_map'.
(dl_main): Finish filling in rtld_map and link it into the chain,
instead of allocating a new structure.
(dl_main): Call _dl_compat_init if it is defined (use weak ref).
* elf/dlsym.c: Fix last change: move REF out of `doit'.
control.
using it.
and cwdir ports.
functions.
these.
$(libdir)(rtld-installed-name).
leading zeroes.
in the rhs.
pattern rule.
never know.
(fork): Use symbol_set_* macros for _hurd_fork_locks.
* sysdeps/unix/sysv/sysv4/linux/i386/sysdep.S (__syscall_error):
instead of unix/sysv.
-dynamic-linker.
(__printf_fp): Last arg ARGS is now `const void **const';
locale/C-ctype.c.
* sysdeps/mach/hurd/sigsuspend.c: Likewise.
* sysdeps/mach/hurd/mips/sigreturn.c: Likewise.
alias gethostname.
setitmr
setpgrp
(_S_msg_get_exec_flags, _S_msg_set_exec_flags,
(abort_thread, abort_rpcs): Take same new arg and pass it through.
* sysdeps/unix/configure.in: Check for fchdir syscall.
Improve sed script to allow / on rhs without / on lhs.
Thu Oct 19 03:47:32 1995 Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>
* sysdeps/unix/sysv/linux/termbits.h: Don't define speed constants.
* elf/rtld.c: Include _itoa.h from stdio-common instead of stdio.
* sysdeps/unix/sysv/linux/select.S: New file.
* Makeconfig (config-LDFLAGS): Define to
-Wl-dynamic-linker=$(libdir)$(rtld-installed-name).
(rtld-installed-name): New variable.
* elf/Makefile (install-lib): Variable removed.
(install-others): Define this instead, to
$(libdir)(rtld-installed-name).
($(libdir)(rtld-installed-name)): New target; install from ld.so.
* elf/ldd.sh.in: New file.
* elf/Makefile (distribute): Add ldd.sh.in.
(install-bin): Add ldd.
($(objpfx)ldd: ldd.sh.in): New rule.
* sysdeps/mach/hurd/dl-sysdep.c: Use __hurd_fail throughout.
* hurd/hurd.h (__hurd_fail): Replace macro with inline function.
Translate some Mach errors to Hurd errors.
* elf/rtld.c (dl_main): Under --list, print msg if executable is
statically linked.
* elf/dl-load.c (_dl_map_object_from_fd): Rewrote program header
table processing.
Sat Oct 7 01:25:48 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* sysdeps/stub/machine-gmon.h: Add #error.
Fri Oct 6 01:49:48 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* elf/dynamic-link.h (elf_get_dynamic_info): If DYN is null, don't
examine it.
kernel with args on stack, point _dl_hurd_data at zero data
instead of garbage. When ld.so run as program, grok args
-LIB=MEMOBJ and pre-load shared object files found in memory
objects loaded by the boot loader.
* elf/link.h (struct link_map): New member `l_entry'.
(_dl_map_object, _dl_map_object_from_fd): Remove last arg ENTRY_POINT.
* elf/dl-load.c (_dl_map_object, _dl_map_object_from_fd): Remove
last arg ENTRY_POINT. Store the entry point location in the
`l_entry' member of the new map.
* elf/rtld.c (dl_main): Don't pass USER_ENTRY arg to
_dl_map_object. When run as program, set *USER_ENTRY to L->l_entry.
* elf/dl-init.c (_dl_init_next): Don't pass ENTRY_POINT arg to
_dl_map_object.
from zero fill.
* elf/dl-lookup.c (_dl_lookup_symbol): Take new flag arg NOSELF;
if nonzero, don't let *REF satisfy the reference itself.
* elf/link.h (_dl_lookup_symbol): Add new arg NOSELF in decl.
* sysdeps/i386/dl-runtime.c (_dl_runtime_resolve): Pass new arg to
_dl_lookup_symbol.
* elf/do-rel.h (elf_dynamic_do_rel): Pass new second arg of
R->r_offset to RESOLVE callback.
* elf/dl-reloc.c (_dl_relocate_object: resolve): Don't let *REF
satisfy the reference itself if its value equals the reloc's
offset.
* elf/rtld.c (dl_main): Write a newline in fatal msg.
* Makerules (lib%.so: lib%_pic.a): Pass $(LDFLAGS.so).
* elf/rtld.c [! NDEBUG] (__assert_perror_fail): New function.
* hurd/hurdstartup.c (_hurd_startup): Fancier kludge to guess phdr
and user entry point addresses.
* elf/dl-load.c (open_path): Don't do strlen on DIRPATH if it's null.
(_dl_map_object): DT_RPATH value is relative to DT_STRTAB value.
* Makerules (install-lib.so): Don't include libc.so.
[$(build-shared)=yes] (install): Depend on the installed libc.so file.
[$(build-shared)=yes] (install-no-libc.a): Make this, rather than
install, depend on the installed $(install-lib.so) files.
[$(build-shared)=yes] (install-lib.so): Append libc.so after that rule.
* sysdeps/mach/hurd/dl-sysdep.c (_dl_sysdep_start): Add kludge to
allocate high addresses to avoid random mappings appearing there.
(mmap): Comment out mask; always pass zero.
Tue Jun 6 13:34:53 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* sysdeps/i386/dl-machine.h (ELF_MACHINE_USER_ADDRESS_MASK): New macro.
* sysdeps/mach/hurd/dl-sysdep.c (mmap): Use it as mask in vm_map call.
* elf/dl-error.c (_dl_catch_error): Clear *ERRSTRING and *OBJNAME
when successful.
* sysdeps/mach/hurd/dl-sysdep.c (threadvars): New static variable.
(__hurd_threadvar_max, __hurd_threadvar_stack_offset): Define these
variables, using the `threadvars' buffer.
* elf/dl-reloc.c: Don't dereference L->l_prev when it's null.
* sysdeps/i386/dl-runtime.c: Likewise.
* elf/rtld.c (dl_main): Add missing NULL terminating argument in
_dl_sysdep_fatal call.
(__assert_fail): Likewise.
* locale/Makefile (localedef-modules): Renamed ctype to
locale-ctype so as not to conflict with the object file for
ctype/ctype.c in the build directory.
* sysdeps/i386/dl-machine.h (elf_machine_rel): If MAP->l_type is
lt_interpreter, first undo relocation done during bootstrapping.
* mach/Makefile (server-interfaces): Removed notify and
device_reply. For shlibs with eager binding, libmachuser.so must
not refer to any functions not defined in libc.
* Makeconfig (+gccwarn): Add -Winline.
* hurd/hurdsig.c (_hurd_internal_post_signal): If SS->context is
set, avoid abort_rpcs, and use reply and intr ports saved in
SS->context.
* sysdeps/mach/hurd/i386/trampoline.c: Don't set SS->intr_port
from SS->context. Don't clear SS->context.
* sysdeps/mach/hurd/i386/sigreturn.c: Don't set SS->intr_port when
setting SS->context. If msg_sig_post returns, re-lock and clear
SS->context.
Fri May 5 10:37:09 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* mach/Makefile (errsystems.c): Comment out generation rule.
* sysdeps/mach/_strerror.c: Consider a system unknown if its
bad_sub member is null.
* mach/mig-alloc.c: Add weak alias to non-__ name.
* sysdeps/i386/dl-machine.h: New file.
* sysdeps/stub/dl-machine.h: New file.
* sysdeps/i386/dl-runtime.c: New file.
* sysdeps/stub/dl-runtime.c: New file.
* sysdeps/i386/elf/start.S: New file.
* sysdeps/generic/dl-sysdep.c: New file.
* sysdeps/mach/hurd/dl-sysdep.c: New file.
