Commit Graph

9 Commits

Author SHA1 Message Date
H.J. Lu
b5648377d9 Hide internal sysinfo functions [BZ #18822]
Hide internal sysinfo functions to allow direct access within libc.so
and libc.a without using GOT nor PLT.

	[BZ #18822]
	* include/sys/sysinfo.h (__get_nprocs_conf): Add
	libc_hidden_proto.
	(__get_nprocs): Likewise.
	(__get_phys_pages): Likewise.
	(__get_avphys_pages): Likewise.
	(__get_child_max): Add attribute_hidden.
	* misc/getsysstats.c (__get_nprocs_conf): Add libc_hidden_def.
	(__get_nprocs): Likewise.
	(__get_phys_pages): Likewise.
	(__get_avphys_pages): Likewise.
	* sysdeps/mach/getsysstats.c (__get_nprocs_conf): Add
	libc_hidden_def.
	(__get_nprocs): Likewise.
	(__get_phys_pages): Likewise.
	(__get_avphys_pages): Likewise.
	* sysdeps/unix/sysv/linux/getsysstats.c (__get_nprocs): Add
	libc_hidden_def.
	(__get_nprocs_conf): Likewise.
	(__get_phys_pages): Likewise.
	(__get_avphys_pages): Likewise.
2017-10-01 15:57:21 -07:00
Zack Weinberg
4775578486 Installed header hygiene (BZ#20366): Test of installed headers.
This adds a test to ensure that the problems fixed in the last several
patches do not recur.  Each directory checks the headers that it
installs for two properties: first, each header must be compilable in
isolation, as both C and C++, under a representative combination of
language and library conformance levels; second, there is a blacklist
of identifiers that may not appear in any installed header, currently
consisting of the legacy BSD typedefs.  (There is an exemption for the
headers that define those typedefs, and for the RPC headers.  It may be
necessary to make this more sophisticated if we add more stuff to the
blacklist in the future.)

In order for this test to work correctly, every wrapper header
that actually defines something must guard those definitions with
 #ifndef _ISOMAC.  This is the existing mechanism used by the conform/
tests to tell wrapper headers not to define anything that the public
header wouldn't, and not to use anything from libc-symbols.h.  conform/
only cares for headers that we need to check for standards conformance,
whereas this test applies to *every* header.  (Headers in include/ that
are either installed directly, or are internal-use-only and do *not*
correspond to any installed header, are not affected.)

	* scripts/check-installed-headers.sh: New script.
	* Rules: In each directory that defines header files to be installed,
	run check-installed-headers.sh on them as a special test.
	* Makefile: Likewise for the headers installed at top level.

	* include/aliases.h, include/alloca.h, include/argz.h
	* include/arpa/nameser.h, include/arpa/nameser_compat.h
	* include/elf.h, include/envz.h, include/err.h
	* include/execinfo.h, include/fpu_control.h, include/getopt.h
	* include/gshadow.h, include/ifaddrs.h, include/libintl.h
	* include/link.h, include/malloc.h, include/mcheck.h
	* include/mntent.h, include/netinet/ether.h
	* include/nss.h, include/obstack.h, include/printf.h
	* include/pty.h, include/resolv.h, include/rpc/auth.h
	* include/rpc/auth_des.h, include/rpc/auth_unix.h
	* include/rpc/clnt.h, include/rpc/des_crypt.h
	* include/rpc/key_prot.h, include/rpc/netdb.h
	* include/rpc/pmap_clnt.h, include/rpc/pmap_prot.h
	* include/rpc/pmap_rmt.h, include/rpc/rpc.h
	* include/rpc/rpc_msg.h, include/rpc/svc.h
	* include/rpc/svc_auth.h, include/rpc/xdr.h
	* include/rpcsvc/nis_callback.h, include/rpcsvc/nislib.h
	* include/rpcsvc/yp.h, include/rpcsvc/ypclnt.h
	* include/rpcsvc/ypupd.h, include/shadow.h
	* include/stdio_ext.h, include/sys/epoll.h
	* include/sys/file.h, include/sys/gmon.h, include/sys/ioctl.h
	* include/sys/prctl.h, include/sys/profil.h
	* include/sys/statfs.h, include/sys/sysctl.h
	* include/sys/sysinfo.h, include/ttyent.h, include/utmp.h
	* sysdeps/arm/nacl/include/bits/setjmp.h
	* sysdeps/mips/include/sys/asm.h
	* sysdeps/unix/sysv/linux/include/sys/sysinfo.h
	* sysdeps/unix/sysv/linux/include/sys/timex.h
	* sysdeps/x86/fpu/include/bits/fenv.h:
	Add #ifndef _ISOMAC guard around internal declarations.
	Add multiple-inclusion guard if not already present.
2016-09-23 08:43:56 -04:00
Roland McGrath
aeb2153cd6 [BZ #1535]
* sysdeps/unix/get_child_max.c: New file.
	* posix/get_child_max.c: New file.
	* posix/Makefile (routines): Add it.
	* include/sys/sysinfo.h (__get_child_max): Declare it.
	* sysdeps/posix/sysconf.c (__sysconf) [! CHILD_MAX]: Use it.
2006-01-08 09:39:29 +00:00
Ulrich Drepper
a334319f65 (CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4. 2004-12-22 20:10:10 +00:00
Jakub Jelinek
0ecb606cb6 2.5-18.1 2007-07-12 18:26:36 +00:00
Ulrich Drepper
e4cf522929 Update.
* sysdeps/generic/getsysstat.c: Change return value of get_phys_pages
	and get_avphys_page to long int.
	* sysdeps/unix/sysv/linux/getsysstat.c: Likewise.
	* include/sys/sysinfo.h: Likewise.
	* sysdeps/generic/sys/sysinfo.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/sysinfo.h: Likewise.
2001-02-11 19:15:00 +00:00
Ulrich Drepper
c19559b0bc 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>
1999-11-23 17:22:17 +00:00
Ulrich Drepper
fe559c5e1c Update.
1999-10-19  Andreas Jaeger  <aj@suse.de>

	* include/bits/ipc.h: Remove K&R compatibility.
	* include/libintl.h: Likewise.
	* include/math.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/mman.h: Likewise.
	* include/sys/resource.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.
	* include/wctype.h: Likewise.

1999-10-19  Andreas Jaeger  <aj@suse.de>

	* math/libm-test.inc: Remove one K&R compatibility.
	(main): Enable nexttoward_test.

	* math/gen-libm-test.pl (output_ulps): Output name of Ulps file to
	libm-test-ulps.h; pretty print output a bit.

1999-10-19  Andreas Jaeger  <aj@suse.de>

	* iconv/iconv_prog.c (main): Set exit value in case that reading
	from stdin failed [PR libc/1404].
1999-10-19 13:53:34 +00:00
Ulrich Drepper
bdb04ee8e2 Update.
1999-07-30  Andreas Schwab  <schwab@suse.de>

	* sysdeps/unix/sysv/linux/getsysstats.c (GET_NPROCS_PARSER): New
	definition.
	(__get_nprocs): Use it.
	(__get_nprocs_conf): Define as separate function if
	GET_NPROCS_CONF_PARSER is defined.
	* sysdeps/unix/sysv/linux/alpha/getsysstats.c: New file.

	* include/sys/sysinfo.h: New file.
	* sysdeps/generic/sys/sysinfo.h: Remove declaration of internal
	interface.
	* sysdeps/unix/sysv/linux/sys/sysinfo.h: Likewise.

1999-07-30  H.J. Lu  <hjl@gnu.org>

	* libio/iofflush.c (fflush_unlocked): Weak aliase if
	_IO_MTSAFE_IO is not defined.
	* libio/clearerr.c (clearerr_unlocked): Likewise.
	* libio/feof.c (feof_unlocked): Likewise.
	* libio/ferror.c (ferror_unlocked): Likewise.
	* libio/fputc.c (fputc_unlocked): Likewise.
	* libio/getc.c (getc_unlocked, fgetc_unlocked): Likewise.
	* libio/getchar.c (getchar_unlocked): Likewise.
	* libio/putc.c (putc_unlocked): Likewise.
	* libio/putchar.c (putchar_unlocked): Likewise.

1999-07-30  Thorsten Kukuk  <kukuk@suse.de>

	* sunrpc/Versions: Add svc_getreq_common, svc_getreq_poll,
	  svc_max_pollfd and svc_pollfd to GLIBC_2.2
	* sunrpc/rpc/svc.h: Use rpc*_t types, add new prototypes
	  for svc_run/poll interface.
	* sunrpc/rpc/types.h: Add rpc*_t typedefs.
	* sunrpc/rpc_common.c: Add svc_pollfd and svc_max_pollfd as
	  global variable.
	* sunrpc/svc.c: Add svc_getreq_poll and svc_getreq_common,
	  rewrite other svc_getreq* functions to use svc_getreq_common.
	* sunrpc/svc_run.c: Use poll().

1999-07-30  Andreas Schwab  <schwab@suse.de>

	* Makerules: Put sysd-versions and Versions.all on
	postclean-generated instead of common-generated.

1999-07-29  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* manual/time.texi (Basic CPU Time): Note that clock_t can wrap
	around and CLOCKS_PER_SEC is 1e6.
1999-07-31 06:11:24 +00:00