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3996f34b46
1997-07-28 23:35 Ulrich Drepper <drepper@cygnus.com> * csu/gmon-start.c (__gmon_start__): Call __monstartup not monstartup. * gmon/gmon.c: Rename moncontrol to __moncontrol and monstartup to __monstartup. * gmon/sys/gmon.h: Fix prototypes. * gmon/sys/gmon_out.h: Pretty print. * gmon/bb_exit_func.c (__bb_exit_func): Use memcpy instead of bcopy. * gmon/gmon.c (__monstartup): Likewise. (write_hist): Remove dependency on 32 int. (_mcleanup): Don't call perror, use fprintf. * elf/dl-load.c: Fix handling of current directory in search path. * elf/Makefile (dl-routines): Add dl-profile. * elf/dl-profile.c: New file. * elf/dl-runtime.c (fixup): Add new parameter with address to store relocation result in to elf_machine_relplt. (profile_fixup): New function. * elf/do-rel.h (elf_dynamic_do_rel): Add new parameter with address to store relocation result in to elf_machine_relplt. * elf/dl-support.c: Define _dl_profile and _dl_profile_map. * elf/dynamic-link.h (ELF_DYNAMIC_RELOCATE): Add new parameter and call elf_machine_runtime_setup with extra argument. * elf/dl-reloc.c (_dl_relocate_object): Add new argument to ELF_DYNAMIC_RELOCATE. * elf/link.h: Add prototypes for new functions and variables. * elf/rtld.c: Parse LD_PROFILE and LD_PROFILE_OUTPUT environment variables and call _dl_start_profile if necessary. * include/sys/gmon_out.h: New file. * sysdeps/alpha/dl-machine.h (elf_machine_runtime_setup): Add new parameter to enable profiling. (elf_machine_rela): Add new parameter to specify place to store result in. * sysdeps/m68k/dl-machine.h: Likewise. * sysdeps/mips/dl-machine.h: Likewise. * sysdeps/mips/mips64/dl-machine.h: Likewise. * sysdeps/powerpc/dl-machine.h: Likewise. * sysdeps/sparc/dl-machine.h: Likewise. * sysdeps/sparc64/dl-machine.h: Likewise. * sysdeps/i386/dl-machine.h: Likewise. (elf_machine_runtime_setup): Setup got[2] to _dl_runtime_resolve if we do profiling. (ELF_MACHINE_RUNTIME_TRAMPOLINE): Add code for _dl_runtime_profile. * nis/nss_compat/compat-grp.c (internal_setgrent): Set FD_CLOEXEC for stream on input file. * nis/nss_compat/compat-pwd.c (internal_setpwent): Likewise. * nis/nss_compat/compat-spwd.c (internal_setspent): Likewise. * nss/nss_db/db-XXX.c (internal_setent): Likewise. * nss/nss_db/db-alias.c (internal_setent): Likewise. * nss/nss_db/db-netgrp.c (internal_setent): Likewise. * nss/nss_files/files-XXX.c (internal_setent): Likewise. * nss/nss_files/files-alias.c (internal_setent): Likewise. * nss/nss_files/files-netgrp.c (internal_setent): Likewise. * string/string.h: Pretty print. * sysdeps/i386/fpu/bits/mathinline.h: Major update by John Bowman. Add float and long double versions. 1997-07-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * elf/rtld.c (print_unresolved): Replace empty object name by main program name. 1997-07-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/generic/htons.c (htons): Renamed from __htons. 1997-07-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/m68k/bits/byteswap.h: New file. 1997-07-27 23:50 Philip Blundell <Philip.Blundell@pobox.com> * inet/netinet/icmp6.h: Update for new drafts of POSIX.1g and IPv6 advanced API. * inet/netinet/in.h: Likewise. * inet/netinet/ip6.h: Likewise. * sysdeps/unix/sysv/linux/bits/socket.h: Likewise. * posix/sys/types.h: Add socklen_t. * manual/socket.texi: Document some more IPv6 things. * manual/libc.texinfo: Likewise. 1997-07-26 Andreas Jaeger <aj@arthur.rhein-neckar.de> * libc.map: Define missing symbol. 1997-07-27 14:31 Thorsten Kukuk <kukuk@vt.uni-paderborn.de> * nis/Makefile: Add nis_findserv. * nis/lckcache.c: Fix typo. * nis/nis_call.c: Fix problems with multihomed servers. * nis/nis_findserv.c: New file. * nis/nis_intern.h: Add more prototypes. * nis/nis_lookup.c (nis_lookup): Don't try the next server if network is unreachable. * nis/nis_table.c (nis_list): Likewise. * nis/nis_ping.c (nis_ping): Use MASTER_ONLY, don't call abort() in error case. * nis/nis_util.c (__nis_finddirectory): Give the right error code back. * nis/ypclnt.c: Make sure, that all sockets are closed.
333 lines
9.0 KiB
C
333 lines
9.0 KiB
C
/*-
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* Copyright (c) 1983, 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/gmon.h>
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#include <sys/gmon_out.h>
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#include <sys/uio.h>
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#include <errno.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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extern int __profile_frequency __P ((void));
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struct __bb *__bb_head; /* Head of basic-block list or NULL. */
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struct gmonparam _gmonparam = { GMON_PROF_OFF };
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/*
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* See profil(2) where this is described:
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*/
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static int s_scale;
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#define SCALE_1_TO_1 0x10000L
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#define ERR(s) write(2, s, sizeof(s) - 1)
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void moncontrol __P ((int mode));
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void __moncontrol __P ((int mode));
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static void write_hist __P ((int fd));
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static void write_call_graph __P ((int fd));
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static void write_bb_counts __P ((int fd));
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/*
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* Control profiling
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* profiling is what mcount checks to see if
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* all the data structures are ready.
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*/
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void
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__moncontrol (mode)
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int mode;
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{
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struct gmonparam *p = &_gmonparam;
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if (mode)
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{
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/* start */
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profil((void *) p->kcount, p->kcountsize, p->lowpc, s_scale);
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p->state = GMON_PROF_ON;
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}
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else
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{
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/* stop */
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profil((void *) 0, 0, 0, 0);
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p->state = GMON_PROF_OFF;
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}
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}
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void
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__monstartup (lowpc, highpc)
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u_long lowpc;
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u_long highpc;
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{
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register int o;
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char *cp;
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struct gmonparam *p = &_gmonparam;
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/*
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* round lowpc and highpc to multiples of the density we're using
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* so the rest of the scaling (here and in gprof) stays in ints.
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*/
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p->lowpc = ROUNDDOWN(lowpc, HISTFRACTION * sizeof(HISTCOUNTER));
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p->highpc = ROUNDUP(highpc, HISTFRACTION * sizeof(HISTCOUNTER));
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p->textsize = p->highpc - p->lowpc;
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p->kcountsize = p->textsize / HISTFRACTION;
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p->hashfraction = HASHFRACTION;
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p->log_hashfraction = -1;
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if ((HASHFRACTION & (HASHFRACTION - 1)) == 0) {
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/* if HASHFRACTION is a power of two, mcount can use shifting
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instead of integer division. Precompute shift amount. */
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p->log_hashfraction = ffs(p->hashfraction * sizeof(*p->froms)) - 1;
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}
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p->fromssize = p->textsize / HASHFRACTION;
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p->tolimit = p->textsize * ARCDENSITY / 100;
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if (p->tolimit < MINARCS)
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p->tolimit = MINARCS;
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else if (p->tolimit > MAXARCS)
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p->tolimit = MAXARCS;
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p->tossize = p->tolimit * sizeof(struct tostruct);
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cp = malloc (p->kcountsize + p->fromssize + p->tossize);
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if (! cp)
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{
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ERR(_("monstartup: out of memory\n"));
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return;
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}
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memset (cp, '\0', p->kcountsize + p->fromssize + p->tossize);
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p->tos = (struct tostruct *)cp;
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cp += p->tossize;
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p->kcount = (u_short *)cp;
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cp += p->kcountsize;
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p->froms = (u_short *)cp;
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p->tos[0].link = 0;
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o = p->highpc - p->lowpc;
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if (p->kcountsize < (u_long) o)
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{
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#ifndef hp300
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s_scale = ((float)p->kcountsize / o ) * SCALE_1_TO_1;
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#else
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/* avoid floating point operations */
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int quot = o / p->kcountsize;
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if (quot >= 0x10000)
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s_scale = 1;
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else if (quot >= 0x100)
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s_scale = 0x10000 / quot;
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else if (o >= 0x800000)
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s_scale = 0x1000000 / (o / (p->kcountsize >> 8));
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else
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s_scale = 0x1000000 / ((o << 8) / p->kcountsize);
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#endif
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} else
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s_scale = SCALE_1_TO_1;
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__moncontrol(1);
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}
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static void
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write_hist (fd)
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int fd;
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{
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u_char tag = GMON_TAG_TIME_HIST;
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struct gmon_hist_hdr thdr __attribute__ ((aligned (__alignof__ (char *))));
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if (_gmonparam.kcountsize > 0)
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{
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struct iovec iov[3] =
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{
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{ &tag, sizeof (tag) },
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{ &thdr, sizeof (struct gmon_hist_hdr) },
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{ _gmonparam.kcount, _gmonparam.kcountsize }
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};
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*(char **) thdr.low_pc = (char *) _gmonparam.lowpc;
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*(char **) thdr.high_pc = (char *) _gmonparam.highpc;
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*(int32_t *) thdr.hist_size = (_gmonparam.kcountsize
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/ sizeof (HISTCOUNTER));
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*(int32_t *) thdr.prof_rate = __profile_frequency ();
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strncpy (thdr.dimen, "seconds", sizeof (thdr.dimen));
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thdr.dimen_abbrev = 's';
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__writev (fd, iov, 3);
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}
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}
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static void
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write_call_graph (fd)
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int fd;
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{
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#define NARCS_PER_WRITEV 32
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u_char tag = GMON_TAG_CG_ARC;
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struct gmon_cg_arc_record raw_arc[NARCS_PER_WRITEV]
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__attribute__ ((aligned (__alignof__ (char*))));
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int from_index, to_index, from_len;
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u_long frompc;
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struct iovec iov[2 * NARCS_PER_WRITEV];
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int nfilled;
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for (nfilled = 0; nfilled < NARCS_PER_WRITEV; ++nfilled)
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{
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iov[2 * nfilled].iov_base = &tag;
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iov[2 * nfilled].iov_len = sizeof (tag);
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iov[2 * nfilled + 1].iov_base = &raw_arc[nfilled];
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iov[2 * nfilled + 1].iov_len = sizeof (struct gmon_cg_arc_record);
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}
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nfilled = 0;
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from_len = _gmonparam.fromssize / sizeof (*_gmonparam.froms);
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for (from_index = 0; from_index < from_len; ++from_index)
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{
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if (_gmonparam.froms[from_index] == 0)
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continue;
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frompc = _gmonparam.lowpc;
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frompc += (from_index * _gmonparam.hashfraction
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* sizeof (*_gmonparam.froms));
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for (to_index = _gmonparam.froms[from_index];
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to_index != 0;
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to_index = _gmonparam.tos[to_index].link)
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{
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*(char **) raw_arc[nfilled].from_pc = (char *) frompc;
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*(char **) raw_arc[nfilled].self_pc =
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(char *)_gmonparam.tos[to_index].selfpc;
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*(int *) raw_arc[nfilled].count = _gmonparam.tos[to_index].count;
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if (++nfilled == NARCS_PER_WRITEV)
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{
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__writev (fd, iov, 2 * nfilled);
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nfilled = 0;
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}
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}
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}
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if (nfilled > 0)
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__writev (fd, iov, 2 * nfilled);
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}
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static void
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write_bb_counts (fd)
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int fd;
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{
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struct __bb *grp;
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u_char tag = GMON_TAG_BB_COUNT;
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size_t ncounts;
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size_t i;
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struct iovec bbhead[2] =
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{
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{ &tag, sizeof (tag) },
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{ &ncounts, sizeof (ncounts) }
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};
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struct iovec bbbody[8];
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size_t nfilled;
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for (i = 0; i < (sizeof (bbbody) / sizeof (bbbody[0])); i += 2)
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{
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bbbody[i].iov_len = sizeof (grp->addresses[0]);
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bbbody[i + 1].iov_len = sizeof (grp->counts[0]);
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}
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/* Write each group of basic-block info (all basic-blocks in a
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compilation unit form a single group). */
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for (grp = __bb_head; grp; grp = grp->next)
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{
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ncounts = grp->ncounts;
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__writev (fd, bbhead, 2);
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for (nfilled = i = 0; i < ncounts; ++i)
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{
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if (nfilled > (sizeof (bbbody) / sizeof (bbbody[0])) - 2)
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{
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__writev (fd, bbbody, nfilled);
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nfilled = 0;
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}
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bbbody[nfilled++].iov_base = (char *) &grp->addresses[i];
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bbbody[nfilled++].iov_base = &grp->counts[i];
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}
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if (nfilled > 0)
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__writev (fd, bbbody, nfilled);
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}
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}
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void
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_mcleanup ()
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{
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struct gmon_hdr ghdr __attribute__ ((aligned (__alignof__ (int))));
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int fd;
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__moncontrol (0);
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fd = __open ("gmon.out", O_CREAT|O_TRUNC|O_WRONLY, 0666);
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if (fd < 0)
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{
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char buf[300];
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int errnum = errno;
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fprintf (stderr, "_mcleanup: gmon.out: %s\n",
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_strerror_internal (errnum, buf, sizeof buf));
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return;
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}
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/* write gmon.out header: */
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memset (&ghdr, '\0', sizeof (struct gmon_hdr));
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memcpy (&ghdr.cookie[0], GMON_MAGIC, sizeof (ghdr.cookie));
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*(int32_t *) ghdr.version = GMON_VERSION;
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__write (fd, &ghdr, sizeof (struct gmon_hdr));
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/* write PC histogram: */
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write_hist (fd);
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/* write call-graph: */
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write_call_graph (fd);
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/* write basic-block execution counts: */
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write_bb_counts (fd);
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/* free the memory. */
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free (_gmonparam.tos);
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__close (fd);
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}
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