Some older standards (XPG4.2 through POSIX.1:2001, XSI only) require
sys/wait.h to include the definition of struct rusage. This is
missing in glibc.
This patch adds the required definition. struct rusage is moved to a
new header bits/types/struct_rusage.h to avoid bringing in the whole
of sys/resource.h (although the standards in question do allow the
whole of sys/resource.h to be brought in). In the five
bits/resource.h headers, the only variation between the definitions of
struct rusage is that the sysdeps/unix/sysv/linux version is prepared
for x32 (by having anonymous unions with __syscall_slong_t fields) and
the others are not. Thus, this version is suitable for use
generically (everything other than x32 simply has __syscall_slong_t
the same as long int, so there are no API or ABI changes involved, and
anonymous unions are already a required language feature for glibc
headers elsewhere), and this patch uses it as a base for the single
implementation of bits/types/struct_rusage.h.
Tested for x86_64, and with build-many-glibcs.py.
[BZ #21575]
* resource/bits/types/struct_rusage.h: New file.
* include/bits/types/struct_rusage.h: Likewise.
* bits/resource.h (struct rusage): Include
<bits/types/struct_rusage.h> instead of defining here.
* sysdeps/unix/sysv/linux/bits/resource.h (struct rusage):
Likewise.
* sysdeps/unix/sysv/linux/alpha/bits/resource.h (struct rusage):
Likewise.
* sysdeps/unix/sysv/linux/mips/bits/resource.h (struct rusage):
Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/resource.h (struct rusage):
Likewise.
* resource/Makefile (headers): Add bits/types/struct_rusage.h.
* posix/sys/wait.h [__USE_XOPEN_EXTENDED && !__USE_XOPEN2K8]:
Include <bits/types/struct_rusage.h>
Many headers are expected to expose a subset of the type definitions
in time.h. time.h has a whole bunch of messy logic for conditionally
defining some its types and structs, but, as best I can tell, this
has never worked 100%. In particular, __need_timespec is ineffective
if _TIME_H has already been defined, which means that if you compile
#include <time.h>
#include <sched.h>
with e.g. -fsyntax-only -std=c89 -Wall -Wsystem-headers, you will get
In file included from test.c:2:0:
/usr/include/sched.h:74:57: warning: "struct timespec" declared inside
parameter list will not be visible outside of this definition or declaration
extern int sched_rr_get_interval (__pid_t __pid, struct timespec *__t) __THROW;
^~~~~~~~
And if you want to _use_ sched_rr_get_interval in a TU compiled that
way, you're hosed.
This patch replaces all of that with small bits/types/TYPE.h headers
as introduced earlier. time.h and bits/time.h are now *much* simpler,
and a lot of other headers are slightly simpler.
* time/time.h, bits/time.h, sysdeps/unix/sysv/linux/bits/time.h:
Remove all logic conditional on __need macros. Move all the
conditionally defined types to their own headers...
* time/bits/types/clock_t.h: Define clock_t here.
* time/bits/types/clockid_t.h: Define clockid_t here.
* time/bits/types/struct_itimerspec.h: Define struct itimerspec here.
* time/bits/types/struct_timespec.h: Define struct timespec here.
* time/bits/types/struct_timeval.h: Define struct timeval here.
* time/bits/types/struct_tm.h: Define struct tm here.
* time/bits/types/time_t.h: Define time_t here.
* time/bits/types/timer_t.h: Define timer_t here.
* time/Makefile: Install the new headers.
* bits/resource.h, io/fcntl.h, io/sys/poll.h, io/sys/stat.h
* io/utime.h, misc/sys/select.h, posix/sched.h, posix/sys/times.h
* posix/sys/types.h, resolv/netdb.h, rt/aio.h, rt/mqueue.h
* signal/signal.h, pthread/semaphore.h, sysdeps/nptl/pthread.h
* sysdeps/unix/sysv/linux/alpha/bits/resource.h
* sysdeps/unix/sysv/linux/alpha/sys/acct.h
* sysdeps/unix/sysv/linux/bits/resource.h
* sysdeps/unix/sysv/linux/bits/timex.h
* sysdeps/unix/sysv/linux/mips/bits/resource.h
* sysdeps/unix/sysv/linux/net/ppp_defs.h
* sysdeps/unix/sysv/linux/sparc/bits/resource.h
* sysdeps/unix/sysv/linux/sys/acct.h
* sysdeps/unix/sysv/linux/sys/timerfd.h
* sysvipc/sys/msg.h, sysvipc/sys/sem.h, sysvipc/sys/shm.h
* time/sys/time.h, time/sys/timeb.h
Use the new bits/types headers.
* include/time.h: Remove __need logic.
* include/bits/time.h
* include/bits/types/clock_t.h, include/bits/types/clockid_t.h
* include/bits/types/time_t.h, include/bits/types/timer_t.h
* include/bits/types/struct_itimerspec.h
* include/bits/types/struct_timespec.h
* include/bits/types/struct_timeval.h
* include/bits/types/struct_tm.h:
New wrapper headers.
Also fixed the following whitespace nits to satisfy the push:
sysdeps/alpha/alphaev6/memset.S:142: space before tab in indent.
sysdeps/alpha/configure:1: new blank line at EOF.
sysdeps/alpha/fpu/e_sqrt.c:126: space before tab in indent.
sysdeps/alpha/preconfigure:1: new blank line at EOF.
sysdeps/unix/sysv/linux/alpha/syscalls.list:1: new blank line at EOF.
2001-07-06 Paul Eggert <eggert@twinsun.com>
* manual/argp.texi: Remove ignored LGPL copyright notice; it's
not appropriate for documentation anyway.
* manual/libc-texinfo.sh: "Library General Public License" ->
"Lesser General Public License".
2001-07-06 Andreas Jaeger <aj@suse.de>
* All files under GPL/LGPL version 2: Place under LGPL version
2.1.
2000-10-02 Andreas Jaeger <aj@suse.de>
* sysdeps/unix/sysv/linux/alpha/bits/fcntl.h: Synch with Linux
2.4.0-test9-pre8.
* sysdeps/unix/sysv/linux/alpha/bits/resource.h: Add RLIMIT_LOCKS.
1999-12-18 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/sysv/linux/i386/setrlimit.c: Declare local variable
result if necessary.
* sysdeps/unix/sysv/linux/i386/bits/resource.h: Don't depend on the
unreliable kernel headers.
* sysdeps/unix/sysv/linux/bits/resource.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/resource.h: Likewise.
* sysdeps/unix/sysv/linux/alpha/bits/resource.h: New file.
* sysdeps/unix/sysv/linux/mips/bits/resource.h: New file.
1999-12-18 Andreas Jaeger <aj@suse.de>
* config.make.in (datadir): Added.
Closes PR libc/1491. Patch by dervishd@jazzfree.com.
1999-12-18 Andreas Jaeger <aj@suse.de>
* sysdeps/unix/sysv/linux/ftruncate64.c (ftruncate64): Save and
set errno.
* sysdeps/unix/sysv/linux/truncate64.c (truncate64): Likewise.
1999-12-18 Andreas Jaeger <aj@suse.de>
* sysdeps/unix/sysv/linux/fxstat64.c: Rewrite to use fstat64
syscall if available.
* sysdeps/unix/sysv/linux/lxstat64.c: Likewise for lstat64.
* sysdeps/unix/sysv/linux/xstat64.c: Likewise for stat64.
* sysdeps/unix/sysv/linux/kernel-features.h
(__ASSUME_STAT64_SYSCALL): New.
1999-12-17 Scott Bambrough <scottb@netwinder.org>
* sysdeps/arm/dl-machine.h (CLEAR_CACHE): New macro to force a
cache flush.
* elf/dl-reloc.c (_dl_relocate_object): Add call to flush cache
after .text segment fixups.
1999-12-16 Andreas Jaeger <aj@suse.de>
* rt/aio.h: Remove erroneous __restrict declarations.
1999-12-18 Ulrich Drepper <drepper@cygnus.com>
* scripts/rellns-sh: Find pwd program also in /usr/bin and let shell
do the job if it is there neither.
Patch by David R. Conrad <drc@adni.net> (PR libc/1485).
1999-12-16 Andreas Jaeger <aj@suse.de>
* sysdeps/ieee754/bits/nan.h (NAN): Rename union to avoid
duplicate definition with function __nan.
Closes PR libc/1487 reported by <diana@kai.com>.
* string/bits/string2.h (__strsep): Help gcc optimizing string access.
