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* malloc: Use __get_nprocs on arena_get2 (BZ 30945)Adhemerval Zanella2023-11-221-4/+0
| | | | | | | | | | | | | | | | This restore the 2.33 semantic for arena_get2. It was changed by 11a02b035b46 to avoid arena_get2 call malloc (back when __get_nproc was refactored to use an scratch_buffer - 903bc7dcc2acafc). The __get_nproc was refactored over then and now it also avoid to call malloc. The 11a02b035b46 did not take in consideration any performance implication, which should have been discussed properly. The __get_nprocs_sched is still used as a fallback mechanism if procfs and sysfs is not acessible. Checked on x86_64-linux-gnu. Reviewed-by: DJ Delorie <dj@redhat.com>
* misc: Add __get_nprocs_schedAdhemerval Zanella2021-09-271-1/+6
| | | | | | | | | | | This is an internal function meant to return the number of avaliable processor where the process can scheduled, different than the __get_nprocs which returns a the system available online CPU. The Linux implementation currently only calls __get_nprocs(), which in tuns calls sched_getaffinity. Reviewed-by: Florian Weimer <fweimer@redhat.com>
* Hide internal sysinfo functions [BZ #18822]H.J. Lu2017-10-011-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* Installed header hygiene (BZ#20366): Test of installed headers.Zack Weinberg2016-09-231-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* [BZ #1535]Roland McGrath2006-01-081-0/+3
| | | | | | | | * 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.
* (CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.Ulrich Drepper2004-12-221-3/+0
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* 2.5-18.1Jakub Jelinek2007-07-121-0/+3
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* Update.Ulrich Drepper2001-02-111-2/+2
| | | | | | | | | * 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.
* Update.Ulrich Drepper1999-11-231-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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>
* Update.Ulrich Drepper1999-10-191-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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].
* Update.Ulrich Drepper1999-07-311-0/+18
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.
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