* blt, iwidgets, mmalloc: Remove directories.
+2006-05-04 Steve Ellcey <sje@cup.hp.com>
+
+ * blt, iwidgets, mmalloc: Remove directories.
+
2006-05-01 DJ Delorie <dj@redhat.com>
* configure.in: Restore CFLAGS if GMP isn't present.
+++ /dev/null
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- <signature of Ty Coon>, 1 April 1990
- Ty Coon, President of Vice
-
-That's all there is to it!
+++ /dev/null
-2003-08-08 H.J. Lu <hongjiu.lu@intel.com>
-
- * Makefile.in (install-info): Create dest dir. Support DESTDIR.
- (install): Likewise.
-
-2002-11-28 Elena Zannoni <ezannoni@redhat.com>
-
- * Makefile.in (install): Move install-info to here...
- (all): ...from here.
-
-2002-11-26 Elena Zannoni <ezannoni@redhat.com>
-
- * Makefile.in (INFO_DEPS): Define.
- (all): Add install-info to the rule.
- (info): Unse INFO_DEPS.
- (install-info): Rewrite.
- (uninstall-info): New.
- (uninstall): New.
-
-2002-04-07 Andrew Cagney <ac131313@redhat.com>
-
- From 2002-03-05 Scott Pakin <pakin@uiuc.edu>
- * mmap-sup.c (MAP_PRIVATE_OR_SHARED): Define.
- (__mmalloc_mmap_morecore): Use.
- (__mmalloc_remap_core): Use.
-
-2000-05-17 Eli Zaretskii <eliz@is.elta.co.il>
-
- * Makefile.in (install-info): Make sure $(infodir) exists. Run
- install-info program on the installed Info files.
-
-2000-03-20 Eli Zaretskii <eliz@is.elta.co.il>
-
- * Makefile.in (install): Append "n", not ".n" to libmmalloc.a,
- since the latter loses on DOS 8+3 filesystems.
-
-Mon Feb 28 10:33:51 2000 Andrew Cagney <cagney@b1.cygnus.com>
-
- * MAINTAINERS: New file.
-
-2000-02-18 Frank Ch. Eigler <fche@redhat.com>
-
- From Jason "crash" Molenda <jsm@cygnus.com>:
- * configure.in: Check for getpagesize declaration.
- * mvmalloc.c, mmap-sup.c: Conditionally declare getpagesize.
- * configure: Regenerated.
-
-Fri Feb 18 11:42:21 2000 Andrew Cagney <cagney@b1.cygnus.com>
-
- * configure.in: Check for <unistd.h>.
- * configure: Regenerate.
-
- From 2000-02-17 RodneyBrown@pmsc.com:
- * mm.c, attach.c, mmap-sup.c, sbrk-sup.c: Include <unistd.h> for
- sbrk and lseek declarations. Update copyright.
-
-2000-02-04 Kevin Buettner (kevinb@cygnus.com)
-
- * acinclude.m4, aclocal.m4: New files.
- * configure.in (sbrk): Use BFD_NEED_DECLARATION to test for
- presence of a suitable declaration in the system headers.
- * configure: Regenerated.
- * sbrk-sup.c (sbrk): Ifdef'd with NEED_DECLARATION_SBRK.
-
-1999-01-04 Jason Molenda (jsm@bugshack.cygnus.com)
-
- * configure.in: Requires autoconf 2.12.1 or higher.
- * configure: Regenerated.
-
-1998-07-24 Jim Blandy <jimb@zwingli.cygnus.com>
-
- * mcalloc.c: #include <sys/types.h> before <string.h>. HP/UX 11.0
- needs this.
-
-Thu Apr 23 12:19:22 1998 Philippe De Muyter <phdm@macqel.be>
-
- * mmalloc.h: Include sys/types.h and stdio.h #ifndef HAVE_STDDEF_H.
- * mmprivate.h: Do not handle HAVE_STDDEF_H here, since we include
- mmalloc.h.
-
-Tue Mar 24 17:07:02 1998 Stu Grossman <grossman@bhuna.cygnus.co.uk>
-
- * Makefile.in: Get SHELL from configure.
- * configure: Regenerate with autoconf 2.12.1 to fix shell issues for
- NT native builds.
-
-Mon Feb 7 13:06:45 1997 Philippe De Muyter <phdm@macqel.be>
-
- * mmalloc/detach.c: Do not include fcntl.h.
-
-Thu Aug 28 13:15:07 1997 Andrew Cagney <cagney@b1.cygnus.com>
-
- * mrealloc.c (realloc): Store result in local variable before
- returning it. Makes debugging much easier at negligible cost.
-
-Tue Feb 4 16:30:59 1997 Ian Lance Taylor <ian@cygnus.com>
-
- * mvalloc.c (cache_pagesize): Rename from pagesize, so that if we
- are building mm.o, it does not conflict with the variable of the
- same name in mmap-sup.c.
-
-Sat Dec 28 12:48:32 1996 Fred Fish <fnf@cygnus.com>
-
- * Makefile.in (mm.o): New target that combines all the functions
- into a single object module. This avoids client programs picking
- up part of the allocation routines from mmalloc and part from libc,
- which can lead to undefined behavior.
- (CFILES): Add mm.c
- (TARGETOBJS): Define to be either the individual objects or the
- single combined object.
- (TARGETLIB): Create the archive using TARGETOBJS.
- * mm.c: New file that simply #includes the other source C files.
-
-Thu Oct 3 15:45:23 1996 Jason Molenda (crash@godzilla.cygnus.co.jp)
-
- * Makefile.in (maintainer-clean): Depend on distclean, remove
- duplication.
-
-Tue Sep 10 17:52:06 1996 Fred Fish <fnf@cygnus.com>
-
- * mmcheck.c (checkhdr): Add prototype.
- (mfree_check): Ditto.
- (mmalloc_check): Ditto.
- (mrealloc_check): Ditto.
- * mmtrace.c (tr_break): Ditto.
- (tr_freehook): Ditto.
- (tr_mallochook): Ditto.
- (tr_reallochook): Ditto.
- * sbrk-sup.c (sbrk_morecore): Ditto.
-
-Wed Sep 4 18:02:45 1996 Stu Grossman (grossman@critters.cygnus.com)
-
- * configure configure.in: Don't default CC to cc. It causes problems
- when starting a compile in the mmalloc directory.
-
-Wed Jul 24 00:53:34 1996 Fred Fish <fnf@cygnus.com>
-
- * mmalloc.h (mmalloc_findbase): Add prototype.
-
-Fri Jul 12 18:35:34 1996 Fred Fish <fnf@cygnus.com>
-
- * mmap-sup.c (mmalloc_findbase): Change to not require /dev/zero
- if MMAP_ANONYMOUS is available.
-
-Wed Jul 10 23:53:42 1996 Fred Fish <fnf@cygnus.com>
-
- * detach.c (mmalloc_detach): Fix bug in computation of negative
- brk value.
- * mmcheck.c (mmcheckf): Renamed from mmcheck and new FORCE argument
- added. Replaced hack that always allowed checking routines to be
- installed and enforce restriction that they have to be installed
- prior to allocating any memory on the used heap or the FORCE argument
- has to be non-NULL.
- (mmcheck): New function that calls mmcheckf with FORCE set to zero,
- for backwards compatibility.
- * mmalloc.c (malloc): Store result in local variable before
- returning it. Makes debugging much easier at negligible cost.
- * mmalloc.h (mmcheckf): Declare.
- * attach.c (reuse): Call mmcheckf rather than mmcheck.
- * mmap-sup.c (__mmalloc_mmap_morecore): Improve to allow mmap
- to select a base mapping address if none is otherwise given.
- (mmalloc_findbase): New function that user can call to find
- an available mapping address of a given size.
-
-Tue Jun 25 22:54:06 1996 Jason Molenda (crash@godzilla.cygnus.co.jp)
-
- * Makefile.in (bindir, libdir, datadir, mandir, infodir, includedir):
- Use autoconf-set values.
- (docdir): Removed.
- * configure.in (AC_PREREQ): autoconf 2.5 or higher.
- * configure: Rebuilt.
-
-Tue May 28 13:51:22 1996 Fred Fish <fnf@cygnus.com>
-
- From: Thomas A Peterson <tap@src.honeywell.com>
- * Makefile.in (install-info): Apply patch to install
- mmalloc.info from srcdir if not found in build dir.
-
-Sun Apr 7 20:55:30 1996 Fred Fish <fnf@rtl.cygnus.com>
-
- From: Miles Bader <miles@gnu.ai.mit.edu>
- * configure.in: Use AC_CHECK_TOOL to find AR & RANLIB.
- * configure: Regenerate with autoconf.
- * Makefile.in: Use AR set by configure substitution.
-
-Fri Mar 29 09:57:36 1996 Fred Fish <fnf@cygnus.com>
-
- * mmalloc.h (mmtrace): Add prototype.
-
-Sat Feb 3 12:41:00 1996 Fred Fish <fnf@cygnus.com>
-
- From H.J. Lu (hjl@gnu.ai.mit.edu):
- * mvalloc.c (valloc): new.
- * mmemalign.c: Allocate (SIZE + ALIGNMENT - 1) and then trim
- if possible.
- (memalign): don't put the node on the _aligned_blocks list more
- than once.
-
-Mon Nov 20 12:04:32 1995 Fred Fish <fnf@cygnus.com>
-
- * Makefile.in (OFILES): Make objects depend upon Makefile,
- since Makefile sets DEFS which can definitely affect how
- objects are to be compiled.
-
-Mon Nov 6 14:12:13 1995 Jason Molenda (crash@phydeaux.cygnus.com)
-
- * configure.in (AC_CHECK_HEADERS): add limits.h.
- (AC_HEADER_STDC): remove.
-
- * mmalloc.h: document necessity of defining size_t before
- including mmalloc.h.
-
- * mmprivate.h: add check for limits.h, remove definition of
- NULL and size_t.
-
-Sun Nov 5 00:27:36 1995 Jason Molenda (crash@phydeaux.cygnus.com)
-
- * configure.in: AC_CHECK_HEADERS, not AC_CHECK_HEADER.
-
-Sun Nov 5 00:14:13 1995 Jason Molenda (crash@phydeaux.cygnus.com)
-
- * configure.in: add check for stddef.h
- * mmalloc.h: include stddef.h if HAVE_STDDEF_H is defined.
-
-Sat Nov 4 19:10:13 1995 Jason Molenda (crash@phydeaux.cygnus.com)
-
- * configure.in: add AC_HEADER_STDC check.
-
- * mmalloc.h: check if STDC_HEADERS instead of __STDC__.
-
- * mmprivate.h: check if STDC_HEADERS instead of __STDC__.
-
-Tue Oct 24 13:17:44 1995 Stan Shebs <shebs@andros.cygnus.com>
-
- * mmprivate.h: Remove declarations (PTR, etc) that are already
- provided by ansidecl.h, include mmalloc.h earlier in file.
-
-Tue Oct 10 11:04:47 1995 Fred Fish <fnf@cygnus.com>
-
- * Makefile.in (BISON): Remove macro.
-
-Wed Sep 20 12:51:13 1995 Ian Lance Taylor <ian@cygnus.com>
-
- * Makefile.in (maintainer-clean): New target, synonym for
- realclean. Add GNU standard maintainer-clean echos.
-
-Thu Aug 3 10:45:37 1995 Fred Fish <fnf@cygnus.com>
-
- * Update all FSF addresses except those in COPYING* files
- and shar archive of original FSF files.
-
-Mon Jun 12 12:11:57 1995 J.T. Conklin <jtc@rtl.cygnus.com>
-
- * Makefile.in (distclean, realclean): Remove config.cache and
- config.log.
-
-Wed May 17 17:47:44 1995 J.T. Conklin <jtc@rtl.cygnus.com>
-
- * Makefile.in (Makefile): Added config.status to dependency list.
- (config.status): New target.
-
-Fri May 5 15:17:53 1995 J.T. Conklin <jtc@rtl.cygnus.com>
-
- * mmap-sup.c: Removed munmap prototype. Some systems have a
- slightly different prototype.
-
-Wed May 3 17:18:13 1995 J.T. Conklin <jtc@rtl.cygnus.com>
-
- * Makefile.in, configure.in: Converted to use autoconf.
- * configure: New file, generated with autoconf 2.3.
- * config/{mh-go32, mh-irix, mh-ncr3000, mh-sunos4,
- mh-sysv4}: Removed.
-
-Thu Nov 3 23:55:21 1994 Ian Lance Taylor (ian@tweedledumb.cygnus.com)
-
- * Makefile.in (install-info): Name destination file correctly,
- rather than using undefined shell variable.
-
-Fri Oct 28 16:46:58 1994 Stan Shebs (shebs@andros.cygnus.com)
-
- * mmprivate.h: New file, was mmalloc.h.
- (mmalloc.h): Include.
- * mmalloc.h: Remove all but declarations of mmalloc functions.
- (ansidecl.h): Include.
- * attach.c, et al: Include mmprivate.h instead of mmalloc.h.
-
-Wed Aug 24 12:55:33 1994 Ian Lance Taylor (ian@sanguine.cygnus.com)
-
- * configure.in: Change i[34]86 to i[345]86.
-
-Mon Aug 22 11:36:40 1994 Stan Shebs (shebs@andros.cygnus.com)
-
- * Makefile.in (distclean): Separate from realclean.
- (realclean): Remove mmalloc.info.
-
-Fri May 6 13:04:25 1994 Steve Chamberlain (sac@cygnus.com)
-
- * config/go32.mh: New file
- * configure.in (host==go32): Use new fragment.
-
-Tue Feb 8 00:32:28 1994 Peter Schauer (pes@regent.e-technik.tu-muenchen.de)
-
- * mmtrace.c (tr_freehook, tr_mallochook, tr_reallochook):
- Cast addresses put out via fprintf to unsigned long and use %lx.
-
-Tue Nov 16 20:33:17 1993 Jim Kingdon (kingdon@deneb.cygnus.com)
-
- * COPYING.LIB: New file (standard version 2 LGPL, as already cited
- by the source files).
-
-Fri Nov 5 11:47:33 1993 Jim Kingdon (kingdon@lioth.cygnus.com)
-
- * Makefile.in (info dvi install-info): Actually make the manual.
-
-Mon Nov 1 14:20:25 1993 Jim Kingdon (kingdon@lioth.cygnus.com)
-
- * mmalloc.texi: Fix typo ("for for" -> "for").
-
-Fri Jul 16 15:27:08 1993 Jim Kingdon (kingdon@rtl.cygnus.com)
-
- * test1.c: New file which tests for bug fixed below.
- * Makefile.in (check): Put in commands to run it (but commented out
- because it won't work for Canadian cross).
-
- * mmalloc.c (mmalloc): When extending a free block at the end of the
- heap, check whether which block is at the end changed.
-
- * Makefile.in (TAGS): make work when srcdir != objdir.
-
-Thu Jul 15 07:56:47 1993 Jim Kingdon (kingdon@lioth.cygnus.com)
-
- * attach.c, detach.c: Include <sys/types.h> before <fcntl.h>.
-
-Wed Jun 30 11:00:53 1993 Jim Kingdon (kingdon@lioth.cygnus.com)
-
- * Makefile.in: Add mostlyclean and realclean targets.
-
-Wed Mar 24 01:58:12 1993 david d `zoo' zuhn (zoo at poseidon.cygnus.com)
-
- * Makefile.in: add dvi and installcheck targets
-
-Fri Mar 12 18:35:43 1993 david d `zoo' zuhn (zoo at cirdan.cygnus.com)
-
- * configure.in: recognize *-*-solaris2* instead of *-*-solaris* (a
- number of people want to call SunOS 4.1.2 "solaris1.0" and get it right)
-
-Mon Feb 22 18:08:53 1993 John Gilmore (gnu@cygnus.com)
-
- * Makefile.in (distclean): Add.
-
-Tue Feb 16 08:09:15 1993 Fred Fish (fnf@cygnus.com)
-
- * Makefile.in, attach.c, detach.c, keys.c, mmap-sup.c, mmtrace.c,
- sbrk-sup.c: Use GNU Library General Public License, like other
- files.
-
-Wed Nov 18 19:18:59 1992 John Gilmore (gnu@cygnus.com)
-
- * configure.in: Regularize list of host configs.
-
-Fri Oct 30 00:59:46 1992 John Gilmore (gnu@cygnus.com)
-
- * mmalloc.texi: Add missing doubled @. Bugfix by Paul Eggert.
-
-Fri Oct 23 01:50:52 1992 Stu Grossman (grossman at cygnus.com)
-
- * configure.in: Handle solaris same as sysv4.
-
-Thu Oct 1 23:34:20 1992 david d `zoo' zuhn (zoo at cirdan.cygnus.com)
-
- * configure.in: use cpu-vendor-os triple instead of nested cases
-
-Sun Aug 23 11:09:46 1992 Fred Fish (fnf@cygnus.com)
-
- * sbrk-sup.c (__mmalloc_brk_init): Ensure base of sbrk'd region
- is aligned. Bug reported by Andrew Heybey (ath@lcs.mit.edu).
-
-Wed Aug 19 14:49:23 1992 Ian Lance Taylor (ian@cygnus.com)
-
- * Makefile.in: always create installation directories.
-
-Mon Jul 20 21:15:44 1992 Fred Fish (fnf@cygnus.com)
-
- * mrealloc.c: Minor code format style changes for consistency.
-
-Fri Jul 3 20:25:30 1992 Fred Fish (fnf@cygnus.com)
-
- * attach.c, detach.c, mcalloc.c, mmalloc.c, mmtrace.c, mrealloc.c,
- sbrk-sup.c: Remove "(void)" casts from function calls where the
- return value is ignored, in accordance with GNU coding standards.
-
-Tue Jun 30 16:44:41 1992 Fred Fish (fnf@cygnus.com)
-
- * mmalloc.h (struct mdesc): Add FIXME comments to point out the
- need to save some data on a per-process basis for mapped regions
- that are shared.
- * attach.c (reuse): Update the morecore field for reused mapped
- regions to be correct for the current process.
-
-Mon Jun 29 10:45:25 1992 Fred Fish (fnf at cygnus.com)
-
- * mmtrace.c: Lint.
-
-Mon Jun 15 12:20:16 1992 Fred Fish (fnf@cygnus.com)
-
- * mmalloc.h (struct mdesc): Change member "errno" to
- "saved_errno" to avoid possible conflict with ANSI C environments,
- where it is allowed to be a macro.
- * config/mh-ncr3000 (INSTALL): Don't use /usr/ucb/install,
- it is broken on ncr 3000's.
- * config/mh-ncr3000 (RANLIB): Use RANLIB=true.
-
-Fri Jun 12 21:34:21 1992 John Gilmore (gnu at cygnus.com)
-
- * mmap-sup.c: Avoid ANSI C "empty translation unit" idiocy.
-
-Tue Jun 9 17:29:04 1992 Fred Fish (fnf@cygnus.com)
-
- * config/{mh-ncr3000, mh-sysv4}: Add definition for INSTALL using
- /usr/ucb/install.
-
-Thu Apr 30 22:36:31 1992 Fred Fish (fnf@cygnus.com)
-
- * sbrk-sup.c (sbrk_morecore): Fix sbrk() error return test.
-
-Mon Apr 20 21:03:30 1992 K. Richard Pixley (rich@cygnus.com)
-
- * Makefile.in: rework CFLAGS so that they can be passed from the
- command line. remove MINUS_G. Default CFLAGS to -g.
-
-Thu Apr 16 20:00:21 1992 Fred Fish (fnf@cygnus.com)
-
- * TODO: New file.
- * attach.c, mcalloc.c, mfree.c, mmalloc.c, mmalloc.h, mmap-sup.c,
- mmcheck.c, mtrace.c, mrealloc.c, mvalloc.c, sbrk-sup.c: Lint.
-
-Fri Apr 10 22:59:17 1992 Fred Fish (fnf@cygnus.com)
-
- * configure.in: Recognize new ncr3000 config.
- * config/mh-ncr3000: New config file.
- * Makefile.in (MINUS_G): Add macro and default to -g.
-
-Wed Apr 8 09:34:53 1992 Fred Fish (fnf@cygnus.com)
-
- * mmalloc.c: Minor fix to comment.
- * mmalloc.texi: Update to match actual implementation
- * mmalloc.h (morecore): Change prototype's 2nd arg to int.
-
-Tue Apr 7 22:16:09 1992 Fred Fish (fnf@cygnus.com)
-
- * mmalloc.h (size_t, CHAR_BIT): Only redefine if not already
- defined.
-
-Mon Apr 6 20:49:33 1992 Fred Fish (fnf@cygnus.com)
-
- * mmalloc.h: Remove include of <stdlib.h>. This also gets rid
- of the ugly kludge installed on 1-Apr-92.
-
-Mon Apr 6 16:33:37 1992 Stu Grossman (grossman at cygnus.com)
-
- * detach.c (mmalloc_detach): Arg should be PTR, not void *.
- Fixes complaints from non __STDC__ systems.
-
-Wed Apr 1 11:47:02 1992 Fred Fish (fnf@cygnus.com)
-
- * mcalloc.c, mfree.c, mmalloc.c, mrealloc.c: Minor comment
- change.
- * mmalloc.h: Add ugly kludge to band-aid over problems with
- bogus vendor <stdlib.h> files.
-
-Sun Mar 29 12:41:31 1992 John Gilmore (gnu at cygnus.com)
-
- * attach.c, mmalloc.c, mmcheck.c: Lint.
-
-Thu Mar 26 17:06:04 1992 Fred Fish (fnf@cygnus.com)
-
- * attach.c (reuse): Explicitly discard return value of mmcheck.
- * mmcheck.c (mmcheck): Document requirements for installing
- corruption checking hooks and set up to enforce restrictions.
-
-Tue Mar 24 23:41:10 1992 K. Richard Pixley (rich@cygnus.com)
-
- * config/mh-irix4: new file.
-
- * Makefile.in: added standard targets, fixed install directories.
-
-Sat Mar 14 17:34:59 1992 Fred Fish (fnf@cygnus.com)
-
- * Initial release, incorporated into gdb.
-
-
+++ /dev/null
-The mmalloc directory is maintained by the GDB group's Host
-maintainers.
-
-This code is in a maintain-only phase - only configury patches fixing
-host compile problems are generally accepted.
+++ /dev/null
-# Copyright (C) 1992 Free Software Foundation, Inc.
-# This file is part of the GNU C Library.
-
-# The GNU C Library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Library General Public License as
-# published by the Free Software Foundation; either version 2 of the
-# License, or (at your option) any later version.
-
-# The GNU C Library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# Library General Public License for more details.
-
-# You should have received a copy of the GNU Library General Public
-# License along with the GNU C Library; see the file COPYING.LIB. If
-# not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-# Boston, MA 02111-1307, USA.
-
-#
-# Makefile for mmalloc directory
-#
-
-# Directory containing source files. Don't clean up the spacing,
-# this exact string is matched for by the "configure" script.
-
-VPATH = @srcdir@
-srcdir = @srcdir@
-
-prefix = @prefix@
-exec_prefix = @exec_prefix@
-
-bindir = @bindir@
-libdir = @libdir@
-
-datadir = @datadir@
-mandir = @mandir@
-man1dir = $(mandir)/man1
-man2dir = $(mandir)/man2
-man3dir = $(mandir)/man3
-man4dir = $(mandir)/man4
-man5dir = $(mandir)/man5
-man6dir = $(mandir)/man6
-man7dir = $(mandir)/man7
-man8dir = $(mandir)/man8
-man9dir = $(mandir)/man9
-infodir = @infodir@
-includedir = @includedir@
-
-SHELL = @SHELL@
-
-INSTALL = @INSTALL@
-INSTALL_PROGRAM=@INSTALL_PROGRAM@
-INSTALL_DATA = @INSTALL_DATA@
-
-AR = @AR@
-AR_FLAGS = qv
-CFLAGS = -g
-MAKEINFO = makeinfo
-RANLIB = @RANLIB@
-RM = rm
-
-# where to find makeinfo
-MAKEINFO=makeinfo
-
-SET_TEXINPUTS = TEXINPUTS=${TEXIDIR}:.:$(srcdir):$(READLINE_DIR):$$TEXINPUTS
-
-# Files which should be generated via 'info' and installed by 'install-info'
-INFO_DEPS = mmalloc.info
-
-# The TeX formatter
-TEX = tex
-
-TARGETLIB = libmmalloc.a
-
-CFILES = mcalloc.c mfree.c mmalloc.c mmcheck.c mmemalign.c mmstats.c \
- mmtrace.c mrealloc.c mvalloc.c mmap-sup.c attach.c detach.c \
- keys.c sbrk-sup.c mm.c
-
-HFILES = mmalloc.h
-
-OFILES = mcalloc.o mfree.o mmalloc.o mmcheck.o mmemalign.o mmstats.o \
- mmtrace.o mrealloc.o mvalloc.o mmap-sup.o attach.o detach.o \
- keys.o sbrk-sup.o
-
-DEFS = @DEFS@
-
-# The current default is to build a single object module with all the mmalloc
-# functions. To build a more traditional library, flip this macro definition.
-#TARGETOBJS = $(OFILES)
-TARGETOBJS = mm.o
-
-.c.o:
- $(CC) -c $(CFLAGS) $(DEFS) -I. -I$(srcdir)/../include $<
-
-# Do we want/need any config overrides?
-#
-
-STAGESTUFF = $(TARGETLIB) *.o
-
-all: $(TARGETLIB)
-
-info: $(INFO_DEPS)
-dvi: mmalloc.dvi
-clean-info:
-installcheck:
-
-mmalloc.info: mmalloc.texi
- $(MAKEINFO) -I $(srcdir) -o ./mmalloc.info mmalloc.texi
-
-# This file doesn't need texindex currently.
-mmalloc.dvi: mmalloc.texi
- $(SET_TEXINPUTS) $(TEX) mmalloc.texi
- rm -f mmalloc.?? mmalloc.??s mmalloc.log mmalloc.aux mmalloc.toc
-
-install-info: info
- $(SHELL) $(srcdir)/../mkinstalldirs $(DESTDIR)$(infodir)
- @list='$(INFO_DEPS)'; \
- for file in $$list; do \
- if test -f $$file; then d=.; else d=$(srcdir); fi; \
- for ifile in `cd $$d && echo $$file $$file-[0-9] $$file-[0-9][0-9]`; do \
- if test -f $$d/$$ifile; then \
- echo " $(INSTALL_DATA) $$d/$$ifile $(DESTDIR)$(infodir)/$$ifile"; \
- $(INSTALL_DATA) $$d/$$ifile $(DESTDIR)$(infodir)/$$ifile; \
- else : ; fi; \
- done; \
- done
- $(POST_INSTALL)
- @if $(SHELL) -c 'install-info --version | sed 1q | fgrep -s -v -i debian' >/dev/null 2>&1; then \
- list='$(INFO_DEPS)'; \
- for file in $$list; do \
- echo " install-info --info-dir=$(DESTDIR)$(infodir) $(DESTDIR)$(infodir)/$$file";\
- install-info --info-dir=$(DESTDIR)$(infodir) $(DESTDIR)$(infodir)/$$file || :;\
- done; \
- else : ; fi
-
-uninstall-info:
- $(PRE_UNINSTALL)
- @if $(SHELL) -c 'install-info --version | sed 1q | fgrep -s -v -i debian' >/dev/null 2>&1; then \
- ii=yes; \
- else ii=; fi; \
- list='$(INFO_DEPS)'; \
- for file in $$list; do \
- test -z "$$ii" \
- || install-info --info-dir=$(DESTDIR)$(infodir) --remove $$file; \
- done
- $(NORMAL_UNINSTALL)
- list='$(INFO_DEPS)'; \
- for file in $$list; do \
- (cd $(DESTDIR)$(infodir) && rm -f $$file $$file-[0-9] $$file-[0-9][0-9]); \
- done
-
-check: test1.c
-# $(CC) -g $(srcdir)/test1.c libmmalloc.a
-# This loses for Canadian cross (building mmalloc with a cross-compiler).
-# There is probably some dejagnu-ish solution (such as what we are doing
-# for gdb, perhaps).
-# ./a.out
-
-install: all install-info
- $(SHELL) $(srcdir)/../mkinstalldirs $(DESTDIR)$(libdir)
- $(INSTALL_DATA) $(TARGETLIB) $(DESTDIR)$(libdir)/$(TARGETLIB)n
- $(RANLIB) $(DESTDIR)$(libdir)/$(TARGETLIB)n
- mv -f $(DESTDIR)$(libdir)/$(TARGETLIB)n $(DESTDIR)$(libdir)/$(TARGETLIB)
-
-uninstall: uninstall-info
-
-$(TARGETLIB): $(TARGETOBJS)
- $(RM) -rf $@
- $(AR) $(AR_FLAGS) $@ $(TARGETOBJS)
- $(RANLIB) $@
-
-$(OFILES) : $(HFILES) Makefile
-
-mm.o: $(HFILES) $(CFILES)
- $(CC) -c $(CFLAGS) $(DEFS) -I. -I$(srcdir)/../include $(srcdir)/mm.c
-
-.always.:
-# Do nothing.
-
-.PHONEY: all etags tags ls clean stage1 stage2 .always.
-
-stage1: force
- -mkdir stage1
- -mv -f $(STAGESTUFF) stage1
-
-stage2: force
- -mkdir stage2
- -mv -f $(STAGESTUFF) stage2
-
-stage3: force
- -mkdir stage3
- -mv -f $(STAGESTUFF) stage3
-
-stage4: force
- -mkdir stage4
- -mv -f $(STAGESTUFF) stage4
-
-against=stage2
-
-comparison: force
- for i in *.o ; do cmp $$i $(against)/$$i || exit 1 ; done
-
-de-stage1: force
- -(cd stage1 ; mv -f * ..)
- -rmdir stage1
-
-de-stage2: force
- -(cd stage2 ; mv -f * ..)
- -rmdir stage2
-
-de-stage3: force
- -(cd stage3 ; mv -f * ..)
- -rmdir stage3
-
-de-stage4: force
- -(cd stage4 ; mv -f * ..)
- -rmdir stage4
-
-etags tags: TAGS
-
-TAGS: $(CFILES)
- etags `for i in $(HFILES) $(CFILES); do echo $(srcdir)/$$i ; done`
-
-ls:
- @echo Makefile $(HFILES) $(CFILES)
-
-# Need to deal with profiled libraries, too.
-
-mostlyclean clean:
- rm -f *.a *.o core errs *~ \#* TAGS *.E a.out errors
-
-distclean: clean
- rm -f config.cache config.log config.status
- rm -f Makefile depend
-
-maintainer-clean realclean: distclean clean
- @echo "This command is intended for maintainers to use;"
- @echo "it deletes files that may require special tools to rebuild."
- rm -f mmalloc.info
-
-force:
-
-Makefile: Makefile.in config.status
- $(SHELL) config.status
-
-config.status: configure
- $(SHELL) config.status --recheck
+++ /dev/null
-Things that still need attention:
-
- * Make implementation changes necessary to allow multiple processes
- to use the mmalloc managed region simultaneously. This requires,
- at the minimum, some sort of cooperative locking that ensures that
- only one process at a time is changing any of the mmalloc managed
- data structures (its ok for the mmalloc managed data regions to be
- changed at any time since we don't care about their contents).
-
- * In order to support multiple processes using the mmalloc managed
- region, the malloc descriptor needs to be broken into two parts,
- one part which is specific to the given process and is maintained
- separately on a per process basis, and another part which is common
- to all processes. As an example, the file descriptor is specific
- to a given process, as are the morecore and abortfunc pointers.
- However magic[], the version number, the flags field, etc are
- common to all processes.
+++ /dev/null
-sinclude(../bfd/acinclude.m4)
+++ /dev/null
-dnl aclocal.m4 generated automatically by aclocal 1.4
-
-dnl Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl This program is distributed in the hope that it will be useful,
-dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
-dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-dnl PARTICULAR PURPOSE.
-
-sinclude(../bfd/acinclude.m4)
-
+++ /dev/null
-/* Initialization for access to a mmap'd malloc managed region.
- Copyright 1992, 2000 Free Software Foundation, Inc.
-
- Contributed by Fred Fish at Cygnus Support. fnf@cygnus.com
-
-This file is part of the GNU C Library.
-
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
-
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
-
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-#include <sys/types.h>
-#include <fcntl.h> /* After sys/types.h, at least for dpx/2. */
-#include <sys/stat.h>
-#include <string.h>
-#ifdef HAVE_UNISTD_H
-#include <unistd.h> /* Prototypes for lseek */
-#endif
-#include "mmprivate.h"
-
-#ifndef SEEK_SET
-#define SEEK_SET 0
-#endif
-
-
-#if defined(HAVE_MMAP)
-
-/* Forward declarations/prototypes for local functions */
-
-static struct mdesc *reuse PARAMS ((int));
-
-/* Initialize access to a mmalloc managed region.
-
- If FD is a valid file descriptor for an open file then data for the
- mmalloc managed region is mapped to that file, otherwise "/dev/zero"
- is used and the data will not exist in any filesystem object.
-
- If the open file corresponding to FD is from a previous use of
- mmalloc and passes some basic sanity checks to ensure that it is
- compatible with the current mmalloc package, then it's data is
- mapped in and is immediately accessible at the same addresses in
- the current process as the process that created the file.
-
- If BASEADDR is not NULL, the mapping is established starting at the
- specified address in the process address space. If BASEADDR is NULL,
- the mmalloc package chooses a suitable address at which to start the
- mapped region, which will be the value of the previous mapping if
- opening an existing file which was previously built by mmalloc, or
- for new files will be a value chosen by mmap.
-
- Specifying BASEADDR provides more control over where the regions
- start and how big they can be before bumping into existing mapped
- regions or future mapped regions.
-
- On success, returns a "malloc descriptor" which is used in subsequent
- calls to other mmalloc package functions. It is explicitly "void *"
- ("char *" for systems that don't fully support void) so that users
- of the package don't have to worry about the actual implementation
- details.
-
- On failure returns NULL. */
-
-PTR
-mmalloc_attach (fd, baseaddr)
- int fd;
- PTR baseaddr;
-{
- struct mdesc mtemp;
- struct mdesc *mdp;
- PTR mbase;
- struct stat sbuf;
-
- /* First check to see if FD is a valid file descriptor, and if so, see
- if the file has any current contents (size > 0). If it does, then
- attempt to reuse the file. If we can't reuse the file, either
- because it isn't a valid mmalloc produced file, was produced by an
- obsolete version, or any other reason, then we fail to attach to
- this file. */
-
- if (fd >= 0)
- {
- if (fstat (fd, &sbuf) < 0)
- {
- return (NULL);
- }
- else if (sbuf.st_size > 0)
- {
- return ((PTR) reuse (fd));
- }
- }
-
- /* We start off with the malloc descriptor allocated on the stack, until
- we build it up enough to call _mmalloc_mmap_morecore() to allocate the
- first page of the region and copy it there. Ensure that it is zero'd and
- then initialize the fields that we know values for. */
-
- mdp = &mtemp;
- memset ((char *) mdp, 0, sizeof (mtemp));
- strncpy (mdp -> magic, MMALLOC_MAGIC, MMALLOC_MAGIC_SIZE);
- mdp -> headersize = sizeof (mtemp);
- mdp -> version = MMALLOC_VERSION;
- mdp -> morecore = __mmalloc_mmap_morecore;
- mdp -> fd = fd;
- mdp -> base = mdp -> breakval = mdp -> top = baseaddr;
-
- /* If we have not been passed a valid open file descriptor for the file
- to map to, then open /dev/zero and use that to map to. */
-
- if (mdp -> fd < 0)
- {
- if ((mdp -> fd = open ("/dev/zero", O_RDWR)) < 0)
- {
- return (NULL);
- }
- else
- {
- mdp -> flags |= MMALLOC_DEVZERO;
- }
- }
-
- /* Now try to map in the first page, copy the malloc descriptor structure
- there, and arrange to return a pointer to this new copy. If the mapping
- fails, then close the file descriptor if it was opened by us, and arrange
- to return a NULL. */
-
- if ((mbase = mdp -> morecore (mdp, sizeof (mtemp))) != NULL)
- {
- memcpy (mbase, mdp, sizeof (mtemp));
- mdp = (struct mdesc *) mbase;
- }
- else
- {
- if (mdp -> flags & MMALLOC_DEVZERO)
- {
- close (mdp -> fd);
- }
- mdp = NULL;
- }
-
- return ((PTR) mdp);
-}
-
-/* Given an valid file descriptor on an open file, test to see if that file
- is a valid mmalloc produced file, and if so, attempt to remap it into the
- current process at the same address to which it was previously mapped.
-
- Note that we have to update the file descriptor number in the malloc-
- descriptor read from the file to match the current valid one, before
- trying to map the file in, and again after a successful mapping and
- after we've switched over to using the mapped in malloc descriptor
- rather than the temporary one on the stack.
-
- Once we've switched over to using the mapped in malloc descriptor, we
- have to update the pointer to the morecore function, since it almost
- certainly will be at a different address if the process reusing the
- mapped region is from a different executable.
-
- Also note that if the heap being remapped previously used the mmcheckf()
- routines, we need to update the hooks since their target functions
- will have certainly moved if the executable has changed in any way.
- We do this by calling mmcheckf() internally.
-
- Returns a pointer to the malloc descriptor if successful, or NULL if
- unsuccessful for some reason. */
-
-static struct mdesc *
-reuse (fd)
- int fd;
-{
- struct mdesc mtemp;
- struct mdesc *mdp = NULL;
-
- if ((lseek (fd, 0L, SEEK_SET) == 0) &&
- (read (fd, (char *) &mtemp, sizeof (mtemp)) == sizeof (mtemp)) &&
- (mtemp.headersize == sizeof (mtemp)) &&
- (strcmp (mtemp.magic, MMALLOC_MAGIC) == 0) &&
- (mtemp.version <= MMALLOC_VERSION))
- {
- mtemp.fd = fd;
- if (__mmalloc_remap_core (&mtemp) == mtemp.base)
- {
- mdp = (struct mdesc *) mtemp.base;
- mdp -> fd = fd;
- mdp -> morecore = __mmalloc_mmap_morecore;
- if (mdp -> mfree_hook != NULL)
- {
- mmcheckf ((PTR) mdp, (void (*) PARAMS ((void))) NULL, 1);
- }
- }
- }
- return (mdp);
-}
-
-#else /* !defined (HAVE_MMAP) */
-
-/* For systems without mmap, the library still supplies an entry point
- to link to, but trying to initialize access to an mmap'd managed region
- always fails. */
-
-/* ARGSUSED */
-PTR
-mmalloc_attach (fd, baseaddr)
- int fd;
- PTR baseaddr;
-{
- return (NULL);
-}
-
-#endif /* defined (HAVE_MMAP) */
-
+++ /dev/null
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- -without-* | --without-*)
- ac_package=`echo $ac_option|sed -e 's/-*without-//'`
- # Reject names that are not valid shell variable names.
- if test -n "`echo $ac_package| sed 's/[-a-zA-Z0-9_]//g'`"; then
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- fi
- ac_package=`echo $ac_package| sed 's/-/_/g'`
- eval "with_${ac_package}=no" ;;
-
- --x)
- # Obsolete; use --with-x.
- with_x=yes ;;
-
- -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
- | --x-incl | --x-inc | --x-in | --x-i)
- ac_prev=x_includes ;;
- -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
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- x_includes="$ac_optarg" ;;
-
- -x-libraries | --x-libraries | --x-librarie | --x-librari \
- | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
- ac_prev=x_libraries ;;
- -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
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- x_libraries="$ac_optarg" ;;
-
- -*) { echo "configure: error: $ac_option: invalid option; use --help to show usage" 1>&2; exit 1; }
- ;;
-
- *)
- if test -n "`echo $ac_option| sed 's/[-a-z0-9.]//g'`"; then
- echo "configure: warning: $ac_option: invalid host type" 1>&2
- fi
- if test "x$nonopt" != xNONE; then
- { echo "configure: error: can only configure for one host and one target at a time" 1>&2; exit 1; }
- fi
- nonopt="$ac_option"
- ;;
-
- esac
-done
-
-if test -n "$ac_prev"; then
- { echo "configure: error: missing argument to --`echo $ac_prev | sed 's/_/-/g'`" 1>&2; exit 1; }
-fi
-
-trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15
-
-# File descriptor usage:
-# 0 standard input
-# 1 file creation
-# 2 errors and warnings
-# 3 some systems may open it to /dev/tty
-# 4 used on the Kubota Titan
-# 6 checking for... messages and results
-# 5 compiler messages saved in config.log
-if test "$silent" = yes; then
- exec 6>/dev/null
-else
- exec 6>&1
-fi
-exec 5>./config.log
-
-echo "\
-This file contains any messages produced by compilers while
-running configure, to aid debugging if configure makes a mistake.
-" 1>&5
-
-# Strip out --no-create and --no-recursion so they do not pile up.
-# Also quote any args containing shell metacharacters.
-ac_configure_args=
-for ac_arg
-do
- case "$ac_arg" in
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- | --no-cr | --no-c) ;;
- -no-recursion | --no-recursion | --no-recursio | --no-recursi \
- | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r) ;;
- *" "*|*" "*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?]*)
- ac_configure_args="$ac_configure_args '$ac_arg'" ;;
- *) ac_configure_args="$ac_configure_args $ac_arg" ;;
- esac
-done
-
-# NLS nuisances.
-# Only set these to C if already set. These must not be set unconditionally
-# because not all systems understand e.g. LANG=C (notably SCO).
-# Fixing LC_MESSAGES prevents Solaris sh from translating var values in `set'!
-# Non-C LC_CTYPE values break the ctype check.
-if test "${LANG+set}" = set; then LANG=C; export LANG; fi
-if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi
-if test "${LC_MESSAGES+set}" = set; then LC_MESSAGES=C; export LC_MESSAGES; fi
-if test "${LC_CTYPE+set}" = set; then LC_CTYPE=C; export LC_CTYPE; fi
-
-# confdefs.h avoids OS command line length limits that DEFS can exceed.
-rm -rf conftest* confdefs.h
-# AIX cpp loses on an empty file, so make sure it contains at least a newline.
-echo > confdefs.h
-
-# A filename unique to this package, relative to the directory that
-# configure is in, which we can look for to find out if srcdir is correct.
-ac_unique_file=mmalloc.c
-
-# Find the source files, if location was not specified.
-if test -z "$srcdir"; then
- ac_srcdir_defaulted=yes
- # Try the directory containing this script, then its parent.
- ac_prog=$0
- ac_confdir=`echo $ac_prog|sed 's%/[^/][^/]*$%%'`
- test "x$ac_confdir" = "x$ac_prog" && ac_confdir=.
- srcdir=$ac_confdir
- if test ! -r $srcdir/$ac_unique_file; then
- srcdir=..
- fi
-else
- ac_srcdir_defaulted=no
-fi
-if test ! -r $srcdir/$ac_unique_file; then
- if test "$ac_srcdir_defaulted" = yes; then
- { echo "configure: error: can not find sources in $ac_confdir or .." 1>&2; exit 1; }
- else
- { echo "configure: error: can not find sources in $srcdir" 1>&2; exit 1; }
- fi
-fi
-srcdir=`echo "${srcdir}" | sed 's%\([^/]\)/*$%\1%'`
-
-# Prefer explicitly selected file to automatically selected ones.
-if test -z "$sitefile"; then
- if test -z "$CONFIG_SITE"; then
- if test "x$prefix" != xNONE; then
- CONFIG_SITE="$prefix/share/config.site $prefix/etc/config.site"
- else
- CONFIG_SITE="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
- fi
- fi
-else
- CONFIG_SITE="$sitefile"
-fi
-for ac_site_file in $CONFIG_SITE; do
- if test -r "$ac_site_file"; then
- echo "loading site script $ac_site_file"
- . "$ac_site_file"
- fi
-done
-
-if test -r "$cache_file"; then
- echo "loading cache $cache_file"
- . $cache_file
-else
- echo "creating cache $cache_file"
- > $cache_file
-fi
-
-ac_ext=c
-# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
-ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
-cross_compiling=$ac_cv_prog_cc_cross
-
-ac_exeext=
-ac_objext=o
-if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
- # Stardent Vistra SVR4 grep lacks -e, says ghazi@caip.rutgers.edu.
- if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then
- ac_n= ac_c='
-' ac_t=' '
- else
- ac_n=-n ac_c= ac_t=
- fi
-else
- ac_n= ac_c='\c' ac_t=
-fi
-
-
-
-# Extract the first word of "gcc", so it can be a program name with args.
-set dummy gcc; ac_word=$2
-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:540: checking for $ac_word" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
-else
- if test -n "$CC"; then
- ac_cv_prog_CC="$CC" # Let the user override the test.
-else
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
- ac_dummy="$PATH"
- for ac_dir in $ac_dummy; do
- test -z "$ac_dir" && ac_dir=.
- if test -f $ac_dir/$ac_word; then
- ac_cv_prog_CC="gcc"
- break
- fi
- done
- IFS="$ac_save_ifs"
-fi
-fi
-CC="$ac_cv_prog_CC"
-if test -n "$CC"; then
- echo "$ac_t""$CC" 1>&6
-else
- echo "$ac_t""no" 1>&6
-fi
-
-if test -z "$CC"; then
- # Extract the first word of "cc", so it can be a program name with args.
-set dummy cc; ac_word=$2
-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:570: checking for $ac_word" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
-else
- if test -n "$CC"; then
- ac_cv_prog_CC="$CC" # Let the user override the test.
-else
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
- ac_prog_rejected=no
- ac_dummy="$PATH"
- for ac_dir in $ac_dummy; do
- test -z "$ac_dir" && ac_dir=.
- if test -f $ac_dir/$ac_word; then
- if test "$ac_dir/$ac_word" = "/usr/ucb/cc"; then
- ac_prog_rejected=yes
- continue
- fi
- ac_cv_prog_CC="cc"
- break
- fi
- done
- IFS="$ac_save_ifs"
-if test $ac_prog_rejected = yes; then
- # We found a bogon in the path, so make sure we never use it.
- set dummy $ac_cv_prog_CC
- shift
- if test $# -gt 0; then
- # We chose a different compiler from the bogus one.
- # However, it has the same basename, so the bogon will be chosen
- # first if we set CC to just the basename; use the full file name.
- shift
- set dummy "$ac_dir/$ac_word" "$@"
- shift
- ac_cv_prog_CC="$@"
- fi
-fi
-fi
-fi
-CC="$ac_cv_prog_CC"
-if test -n "$CC"; then
- echo "$ac_t""$CC" 1>&6
-else
- echo "$ac_t""no" 1>&6
-fi
-
- if test -z "$CC"; then
- case "`uname -s`" in
- *win32* | *WIN32*)
- # Extract the first word of "cl", so it can be a program name with args.
-set dummy cl; ac_word=$2
-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:621: checking for $ac_word" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
-else
- if test -n "$CC"; then
- ac_cv_prog_CC="$CC" # Let the user override the test.
-else
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
- ac_dummy="$PATH"
- for ac_dir in $ac_dummy; do
- test -z "$ac_dir" && ac_dir=.
- if test -f $ac_dir/$ac_word; then
- ac_cv_prog_CC="cl"
- break
- fi
- done
- IFS="$ac_save_ifs"
-fi
-fi
-CC="$ac_cv_prog_CC"
-if test -n "$CC"; then
- echo "$ac_t""$CC" 1>&6
-else
- echo "$ac_t""no" 1>&6
-fi
- ;;
- esac
- fi
- test -z "$CC" && { echo "configure: error: no acceptable cc found in \$PATH" 1>&2; exit 1; }
-fi
-
-echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:653: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
-
-ac_ext=c
-# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
-ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
-cross_compiling=$ac_cv_prog_cc_cross
-
-cat > conftest.$ac_ext << EOF
-
-#line 664 "configure"
-#include "confdefs.h"
-
-main(){return(0);}
-EOF
-if { (eval echo configure:669: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
- ac_cv_prog_cc_works=yes
- # If we can't run a trivial program, we are probably using a cross compiler.
- if (./conftest; exit) 2>/dev/null; then
- ac_cv_prog_cc_cross=no
- else
- ac_cv_prog_cc_cross=yes
- fi
-else
- echo "configure: failed program was:" >&5
- cat conftest.$ac_ext >&5
- ac_cv_prog_cc_works=no
-fi
-rm -fr conftest*
-ac_ext=c
-# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
-ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
-cross_compiling=$ac_cv_prog_cc_cross
-
-echo "$ac_t""$ac_cv_prog_cc_works" 1>&6
-if test $ac_cv_prog_cc_works = no; then
- { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
-fi
-echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:695: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
-echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
-cross_compiling=$ac_cv_prog_cc_cross
-
-echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
-echo "configure:700: checking whether we are using GNU C" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
-else
- cat > conftest.c <<EOF
-#ifdef __GNUC__
- yes;
-#endif
-EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:709: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
- ac_cv_prog_gcc=yes
-else
- ac_cv_prog_gcc=no
-fi
-fi
-
-echo "$ac_t""$ac_cv_prog_gcc" 1>&6
-
-if test $ac_cv_prog_gcc = yes; then
- GCC=yes
-else
- GCC=
-fi
-
-ac_test_CFLAGS="${CFLAGS+set}"
-ac_save_CFLAGS="$CFLAGS"
-CFLAGS=
-echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:728: checking whether ${CC-cc} accepts -g" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
-else
- echo 'void f(){}' > conftest.c
-if test -z "`${CC-cc} -g -c conftest.c 2>&1`"; then
- ac_cv_prog_cc_g=yes
-else
- ac_cv_prog_cc_g=no
-fi
-rm -f conftest*
-
-fi
-
-echo "$ac_t""$ac_cv_prog_cc_g" 1>&6
-if test "$ac_test_CFLAGS" = set; then
- CFLAGS="$ac_save_CFLAGS"
-elif test $ac_cv_prog_cc_g = yes; then
- if test "$GCC" = yes; then
- CFLAGS="-g -O2"
- else
- CFLAGS="-g"
- fi
-else
- if test "$GCC" = yes; then
- CFLAGS="-O2"
- else
- CFLAGS=
- fi
-fi
-
-ac_aux_dir=
-for ac_dir in $srcdir $srcdir/.. $srcdir/../..; do
- if test -f $ac_dir/install-sh; then
- ac_aux_dir=$ac_dir
- ac_install_sh="$ac_aux_dir/install-sh -c"
- break
- elif test -f $ac_dir/install.sh; then
- ac_aux_dir=$ac_dir
- ac_install_sh="$ac_aux_dir/install.sh -c"
- break
- fi
-done
-if test -z "$ac_aux_dir"; then
- { echo "configure: error: can not find install-sh or install.sh in $srcdir $srcdir/.. $srcdir/../.." 1>&2; exit 1; }
-fi
-ac_config_guess=$ac_aux_dir/config.guess
-ac_config_sub=$ac_aux_dir/config.sub
-ac_configure=$ac_aux_dir/configure # This should be Cygnus configure.
-
-# Find a good install program. We prefer a C program (faster),
-# so one script is as good as another. But avoid the broken or
-# incompatible versions:
-# SysV /etc/install, /usr/sbin/install
-# SunOS /usr/etc/install
-# IRIX /sbin/install
-# AIX /bin/install
-# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
-# AFS /usr/afsws/bin/install, which mishandles nonexistent args
-# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
-# ./install, which can be erroneously created by make from ./install.sh.
-echo $ac_n "checking for a BSD compatible install""... $ac_c" 1>&6
-echo "configure:790: checking for a BSD compatible install" >&5
-if test -z "$INSTALL"; then
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- echo $ac_n "(cached) $ac_c" 1>&6
-else
- IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS=":"
- for ac_dir in $PATH; do
- # Account for people who put trailing slashes in PATH elements.
- case "$ac_dir/" in
- /|./|.//|/etc/*|/usr/sbin/*|/usr/etc/*|/sbin/*|/usr/afsws/bin/*|/usr/ucb/*) ;;
- *)
- # OSF1 and SCO ODT 3.0 have their own names for install.
- # Don't use installbsd from OSF since it installs stuff as root
- # by default.
- for ac_prog in ginstall scoinst install; do
- if test -f $ac_dir/$ac_prog; then
- if test $ac_prog = install &&
- grep dspmsg $ac_dir/$ac_prog >/dev/null 2>&1; then
- # AIX install. It has an incompatible calling convention.
- :
- else
- ac_cv_path_install="$ac_dir/$ac_prog -c"
- break 2
- fi
- fi
- done
- ;;
- esac
- done
- IFS="$ac_save_IFS"
-
-fi
- if test "${ac_cv_path_install+set}" = set; then
- INSTALL="$ac_cv_path_install"
- else
- # As a last resort, use the slow shell script. We don't cache a
- # path for INSTALL within a source directory, because that will
- # break other packages using the cache if that directory is
- # removed, or if the path is relative.
- INSTALL="$ac_install_sh"
- fi
-fi
-echo "$ac_t""$INSTALL" 1>&6
-
-# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
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-test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
-
-test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL_PROGRAM}'
-
-test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
-
-
-# Make sure we can run config.sub.
-if ${CONFIG_SHELL-/bin/sh} $ac_config_sub sun4 >/dev/null 2>&1; then :
-else { echo "configure: error: can not run $ac_config_sub" 1>&2; exit 1; }
-fi
-
-echo $ac_n "checking host system type""... $ac_c" 1>&6
-echo "configure:849: checking host system type" >&5
-
-host_alias=$host
-case "$host_alias" in
-NONE)
- case $nonopt in
- NONE)
- if host_alias=`${CONFIG_SHELL-/bin/sh} $ac_config_guess`; then :
- else { echo "configure: error: can not guess host type; you must specify one" 1>&2; exit 1; }
- fi ;;
- *) host_alias=$nonopt ;;
- esac ;;
-esac
-
-host=`${CONFIG_SHELL-/bin/sh} $ac_config_sub $host_alias`
-host_cpu=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
-host_vendor=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
-host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
-echo "$ac_t""$host" 1>&6
-
-echo $ac_n "checking build system type""... $ac_c" 1>&6
-echo "configure:870: checking build system type" >&5
-
-build_alias=$build
-case "$build_alias" in
-NONE)
- case $nonopt in
- NONE) build_alias=$host_alias ;;
- *) build_alias=$nonopt ;;
- esac ;;
-esac
-
-build=`${CONFIG_SHELL-/bin/sh} $ac_config_sub $build_alias`
-build_cpu=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
-build_vendor=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
-build_os=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
-echo "$ac_t""$build" 1>&6
-
-if test $host != $build; then
- ac_tool_prefix=${host_alias}-
-else
- ac_tool_prefix=
-fi
-
-# Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args.
-set dummy ${ac_tool_prefix}ar; ac_word=$2
-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:896: checking for $ac_word" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_AR'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
-else
- if test -n "$AR"; then
- ac_cv_prog_AR="$AR" # Let the user override the test.
-else
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
- ac_dummy="$PATH"
- for ac_dir in $ac_dummy; do
- test -z "$ac_dir" && ac_dir=.
- if test -f $ac_dir/$ac_word; then
- ac_cv_prog_AR="${ac_tool_prefix}ar"
- break
- fi
- done
- IFS="$ac_save_ifs"
- test -z "$ac_cv_prog_AR" && ac_cv_prog_AR="ar"
-fi
-fi
-AR="$ac_cv_prog_AR"
-if test -n "$AR"; then
- echo "$ac_t""$AR" 1>&6
-else
- echo "$ac_t""no" 1>&6
-fi
-
-
-
-# Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
-set dummy ${ac_tool_prefix}ranlib; ac_word=$2
-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:928: checking for $ac_word" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
-else
- if test -n "$RANLIB"; then
- ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
-else
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
- ac_dummy="$PATH"
- for ac_dir in $ac_dummy; do
- test -z "$ac_dir" && ac_dir=.
- if test -f $ac_dir/$ac_word; then
- ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
- break
- fi
- done
- IFS="$ac_save_ifs"
-fi
-fi
-RANLIB="$ac_cv_prog_RANLIB"
-if test -n "$RANLIB"; then
- echo "$ac_t""$RANLIB" 1>&6
-else
- echo "$ac_t""no" 1>&6
-fi
-
-
-if test -z "$ac_cv_prog_RANLIB"; then
-if test -n "$ac_tool_prefix"; then
- # Extract the first word of "ranlib", so it can be a program name with args.
-set dummy ranlib; ac_word=$2
-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:960: checking for $ac_word" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
-else
- if test -n "$RANLIB"; then
- ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
-else
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
- ac_dummy="$PATH"
- for ac_dir in $ac_dummy; do
- test -z "$ac_dir" && ac_dir=.
- if test -f $ac_dir/$ac_word; then
- ac_cv_prog_RANLIB="ranlib"
- break
- fi
- done
- IFS="$ac_save_ifs"
- test -z "$ac_cv_prog_RANLIB" && ac_cv_prog_RANLIB=":"
-fi
-fi
-RANLIB="$ac_cv_prog_RANLIB"
-if test -n "$RANLIB"; then
- echo "$ac_t""$RANLIB" 1>&6
-else
- echo "$ac_t""no" 1>&6
-fi
-
-else
- RANLIB=":"
-fi
-fi
-
-
-echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
-echo "configure:994: checking how to run the C preprocessor" >&5
-# On Suns, sometimes $CPP names a directory.
-if test -n "$CPP" && test -d "$CPP"; then
- CPP=
-fi
-if test -z "$CPP"; then
-if eval "test \"`echo '$''{'ac_cv_prog_CPP'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
-else
- # This must be in double quotes, not single quotes, because CPP may get
- # substituted into the Makefile and "${CC-cc}" will confuse make.
- CPP="${CC-cc} -E"
- # On the NeXT, cc -E runs the code through the compiler's parser,
- # not just through cpp.
- cat > conftest.$ac_ext <<EOF
-#line 1009 "configure"
-#include "confdefs.h"
-#include <assert.h>
-Syntax Error
-EOF
-ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1015: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
-ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
-if test -z "$ac_err"; then
- :
-else
- echo "$ac_err" >&5
- echo "configure: failed program was:" >&5
- cat conftest.$ac_ext >&5
- rm -rf conftest*
- CPP="${CC-cc} -E -traditional-cpp"
- cat > conftest.$ac_ext <<EOF
-#line 1026 "configure"
-#include "confdefs.h"
-#include <assert.h>
-Syntax Error
-EOF
-ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1032: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
-ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
-if test -z "$ac_err"; then
- :
-else
- echo "$ac_err" >&5
- echo "configure: failed program was:" >&5
- cat conftest.$ac_ext >&5
- rm -rf conftest*
- CPP="${CC-cc} -nologo -E"
- cat > conftest.$ac_ext <<EOF
-#line 1043 "configure"
-#include "confdefs.h"
-#include <assert.h>
-Syntax Error
-EOF
-ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1049: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
-ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
-if test -z "$ac_err"; then
- :
-else
- echo "$ac_err" >&5
- echo "configure: failed program was:" >&5
- cat conftest.$ac_ext >&5
- rm -rf conftest*
- CPP=/lib/cpp
-fi
-rm -f conftest*
-fi
-rm -f conftest*
-fi
-rm -f conftest*
- ac_cv_prog_CPP="$CPP"
-fi
- CPP="$ac_cv_prog_CPP"
-else
- ac_cv_prog_CPP="$CPP"
-fi
-echo "$ac_t""$CPP" 1>&6
-
-for ac_hdr in unistd.h
-do
-ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
-echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:1077: checking for $ac_hdr" >&5
-if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
-else
- cat > conftest.$ac_ext <<EOF
-#line 1082 "configure"
-#include "confdefs.h"
-#include <$ac_hdr>
-EOF
-ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1087: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
-ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
-if test -z "$ac_err"; then
- rm -rf conftest*
- eval "ac_cv_header_$ac_safe=yes"
-else
- echo "$ac_err" >&5
- echo "configure: failed program was:" >&5
- cat conftest.$ac_ext >&5
- rm -rf conftest*
- eval "ac_cv_header_$ac_safe=no"
-fi
-rm -f conftest*
-fi
-if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
- echo "$ac_t""yes" 1>&6
- ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
- cat >> confdefs.h <<EOF
-#define $ac_tr_hdr 1
-EOF
-
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- echo "$ac_t""no" 1>&6
-fi
-done
-
-for ac_func in getpagesize
-do
-echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:1116: checking for $ac_func" >&5
-if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
-else
- cat > conftest.$ac_ext <<EOF
-#line 1121 "configure"
-#include "confdefs.h"
-/* System header to define __stub macros and hopefully few prototypes,
- which can conflict with char $ac_func(); below. */
-#include <assert.h>
-/* Override any gcc2 internal prototype to avoid an error. */
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char $ac_func();
-
-int main() {
-
-/* The GNU C library defines this for functions which it implements
- to always fail with ENOSYS. Some functions are actually named
- something starting with __ and the normal name is an alias. */
-#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
-choke me
-#else
-$ac_func();
-#endif
-
-; return 0; }
-EOF
-if { (eval echo configure:1144: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
- rm -rf conftest*
- eval "ac_cv_func_$ac_func=yes"
-else
- echo "configure: failed program was:" >&5
- cat conftest.$ac_ext >&5
- rm -rf conftest*
- eval "ac_cv_func_$ac_func=no"
-fi
-rm -f conftest*
-fi
-
-if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
- echo "$ac_t""yes" 1>&6
- ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
- cat >> confdefs.h <<EOF
-#define $ac_tr_func 1
-EOF
-
-else
- echo "$ac_t""no" 1>&6
-fi
-done
-
-echo $ac_n "checking for working mmap""... $ac_c" 1>&6
-echo "configure:1169: checking for working mmap" >&5
-if eval "test \"`echo '$''{'ac_cv_func_mmap_fixed_mapped'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
-else
- if test "$cross_compiling" = yes; then
- ac_cv_func_mmap_fixed_mapped=no
-else
- cat > conftest.$ac_ext <<EOF
-#line 1177 "configure"
-#include "confdefs.h"
-
-/* Thanks to Mike Haertel and Jim Avera for this test.
- Here is a matrix of mmap possibilities:
- mmap private not fixed
- mmap private fixed at somewhere currently unmapped
- mmap private fixed at somewhere already mapped
- mmap shared not fixed
- mmap shared fixed at somewhere currently unmapped
- mmap shared fixed at somewhere already mapped
- For private mappings, we should verify that changes cannot be read()
- back from the file, nor mmap's back from the file at a different
- address. (There have been systems where private was not correctly
- implemented like the infamous i386 svr4.0, and systems where the
- VM page cache was not coherent with the filesystem buffer cache
- like early versions of FreeBSD and possibly contemporary NetBSD.)
- For shared mappings, we should conversely verify that changes get
- propogated back to all the places they're supposed to be.
-
- Grep wants private fixed already mapped.
- The main things grep needs to know about mmap are:
- * does it exist and is it safe to write into the mmap'd area
- * how to use it (BSD variants) */
-#include <sys/types.h>
-#include <fcntl.h>
-#include <sys/mman.h>
-
-/* This mess was copied from the GNU getpagesize.h. */
-#ifndef HAVE_GETPAGESIZE
-# ifdef HAVE_UNISTD_H
-# include <unistd.h>
-# endif
-
-/* Assume that all systems that can run configure have sys/param.h. */
-# ifndef HAVE_SYS_PARAM_H
-# define HAVE_SYS_PARAM_H 1
-# endif
-
-# ifdef _SC_PAGESIZE
-# define getpagesize() sysconf(_SC_PAGESIZE)
-# else /* no _SC_PAGESIZE */
-# ifdef HAVE_SYS_PARAM_H
-# include <sys/param.h>
-# ifdef EXEC_PAGESIZE
-# define getpagesize() EXEC_PAGESIZE
-# else /* no EXEC_PAGESIZE */
-# ifdef NBPG
-# define getpagesize() NBPG * CLSIZE
-# ifndef CLSIZE
-# define CLSIZE 1
-# endif /* no CLSIZE */
-# else /* no NBPG */
-# ifdef NBPC
-# define getpagesize() NBPC
-# else /* no NBPC */
-# ifdef PAGESIZE
-# define getpagesize() PAGESIZE
-# endif /* PAGESIZE */
-# endif /* no NBPC */
-# endif /* no NBPG */
-# endif /* no EXEC_PAGESIZE */
-# else /* no HAVE_SYS_PARAM_H */
-# define getpagesize() 8192 /* punt totally */
-# endif /* no HAVE_SYS_PARAM_H */
-# endif /* no _SC_PAGESIZE */
-
-#endif /* no HAVE_GETPAGESIZE */
-
-#ifdef __cplusplus
-extern "C" { void *malloc(unsigned); }
-#else
-char *malloc();
-#endif
-
-int
-main()
-{
- char *data, *data2, *data3;
- int i, pagesize;
- int fd;
-
- pagesize = getpagesize();
-
- /*
- * First, make a file with some known garbage in it.
- */
- data = malloc(pagesize);
- if (!data)
- exit(1);
- for (i = 0; i < pagesize; ++i)
- *(data + i) = rand();
- umask(0);
- fd = creat("conftestmmap", 0600);
- if (fd < 0)
- exit(1);
- if (write(fd, data, pagesize) != pagesize)
- exit(1);
- close(fd);
-
- /*
- * Next, try to mmap the file at a fixed address which
- * already has something else allocated at it. If we can,
- * also make sure that we see the same garbage.
- */
- fd = open("conftestmmap", O_RDWR);
- if (fd < 0)
- exit(1);
- data2 = malloc(2 * pagesize);
- if (!data2)
- exit(1);
- data2 += (pagesize - ((int) data2 & (pagesize - 1))) & (pagesize - 1);
- if (data2 != mmap(data2, pagesize, PROT_READ | PROT_WRITE,
- MAP_PRIVATE | MAP_FIXED, fd, 0L))
- exit(1);
- for (i = 0; i < pagesize; ++i)
- if (*(data + i) != *(data2 + i))
- exit(1);
-
- /*
- * Finally, make sure that changes to the mapped area
- * do not percolate back to the file as seen by read().
- * (This is a bug on some variants of i386 svr4.0.)
- */
- for (i = 0; i < pagesize; ++i)
- *(data2 + i) = *(data2 + i) + 1;
- data3 = malloc(pagesize);
- if (!data3)
- exit(1);
- if (read(fd, data3, pagesize) != pagesize)
- exit(1);
- for (i = 0; i < pagesize; ++i)
- if (*(data + i) != *(data3 + i))
- exit(1);
- close(fd);
- unlink("conftestmmap");
- exit(0);
-}
-
-EOF
-if { (eval echo configure:1317: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
-then
- ac_cv_func_mmap_fixed_mapped=yes
-else
- echo "configure: failed program was:" >&5
- cat conftest.$ac_ext >&5
- rm -fr conftest*
- ac_cv_func_mmap_fixed_mapped=no
-fi
-rm -fr conftest*
-fi
-
-fi
-
-echo "$ac_t""$ac_cv_func_mmap_fixed_mapped" 1>&6
-if test $ac_cv_func_mmap_fixed_mapped = yes; then
- cat >> confdefs.h <<\EOF
-#define HAVE_MMAP 1
-EOF
-
-fi
-
-for ac_hdr in limits.h stddef.h unistd.h
-do
-ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
-echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:1343: checking for $ac_hdr" >&5
-if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
-else
- cat > conftest.$ac_ext <<EOF
-#line 1348 "configure"
-#include "confdefs.h"
-#include <$ac_hdr>
-EOF
-ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1353: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
-ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
-if test -z "$ac_err"; then
- rm -rf conftest*
- eval "ac_cv_header_$ac_safe=yes"
-else
- echo "$ac_err" >&5
- echo "configure: failed program was:" >&5
- cat conftest.$ac_ext >&5
- rm -rf conftest*
- eval "ac_cv_header_$ac_safe=no"
-fi
-rm -f conftest*
-fi
-if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
- echo "$ac_t""yes" 1>&6
- ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
- cat >> confdefs.h <<EOF
-#define $ac_tr_hdr 1
-EOF
-
-else
- echo "$ac_t""no" 1>&6
-fi
-done
-
-
-echo $ac_n "checking whether sbrk must be declared""... $ac_c" 1>&6
-echo "configure:1381: checking whether sbrk must be declared" >&5
-if eval "test \"`echo '$''{'bfd_cv_decl_needed_sbrk'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
-else
- cat > conftest.$ac_ext <<EOF
-#line 1386 "configure"
-#include "confdefs.h"
-
-#include <stdio.h>
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-#endif
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-int main() {
-char *(*pfn) = (char *(*)) sbrk
-; return 0; }
-EOF
-if { (eval echo configure:1407: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
- rm -rf conftest*
- bfd_cv_decl_needed_sbrk=no
-else
- echo "configure: failed program was:" >&5
- cat conftest.$ac_ext >&5
- rm -rf conftest*
- bfd_cv_decl_needed_sbrk=yes
-fi
-rm -f conftest*
-fi
-
-echo "$ac_t""$bfd_cv_decl_needed_sbrk" 1>&6
-if test $bfd_cv_decl_needed_sbrk = yes; then
- cat >> confdefs.h <<\EOF
-#define NEED_DECLARATION_SBRK 1
-EOF
-
-fi
-
-echo $ac_n "checking whether getpagesize must be declared""... $ac_c" 1>&6
-echo "configure:1428: checking whether getpagesize must be declared" >&5
-if eval "test \"`echo '$''{'bfd_cv_decl_needed_getpagesize'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
-else
- cat > conftest.$ac_ext <<EOF
-#line 1433 "configure"
-#include "confdefs.h"
-
-#include <stdio.h>
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-#endif
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-int main() {
-char *(*pfn) = (char *(*)) getpagesize
-; return 0; }
-EOF
-if { (eval echo configure:1454: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
- rm -rf conftest*
- bfd_cv_decl_needed_getpagesize=no
-else
- echo "configure: failed program was:" >&5
- cat conftest.$ac_ext >&5
- rm -rf conftest*
- bfd_cv_decl_needed_getpagesize=yes
-fi
-rm -f conftest*
-fi
-
-echo "$ac_t""$bfd_cv_decl_needed_getpagesize" 1>&6
-if test $bfd_cv_decl_needed_getpagesize = yes; then
- cat >> confdefs.h <<\EOF
-#define NEED_DECLARATION_GETPAGESIZE 1
-EOF
-
-fi
-
-
-trap '' 1 2 15
-cat > confcache <<\EOF
-# This file is a shell script that caches the results of configure
-# tests run on this system so they can be shared between configure
-# scripts and configure runs. It is not useful on other systems.
-# If it contains results you don't want to keep, you may remove or edit it.
-#
-# By default, configure uses ./config.cache as the cache file,
-# creating it if it does not exist already. You can give configure
-# the --cache-file=FILE option to use a different cache file; that is
-# what configure does when it calls configure scripts in
-# subdirectories, so they share the cache.
-# Giving --cache-file=/dev/null disables caching, for debugging configure.
-# config.status only pays attention to the cache file if you give it the
-# --recheck option to rerun configure.
-#
-EOF
-# The following way of writing the cache mishandles newlines in values,
-# but we know of no workaround that is simple, portable, and efficient.
-# So, don't put newlines in cache variables' values.
-# Ultrix sh set writes to stderr and can't be redirected directly,
-# and sets the high bit in the cache file unless we assign to the vars.
-(set) 2>&1 |
- case `(ac_space=' '; set | grep ac_space) 2>&1` in
- *ac_space=\ *)
- # `set' does not quote correctly, so add quotes (double-quote substitution
- # turns \\\\ into \\, and sed turns \\ into \).
- sed -n \
- -e "s/'/'\\\\''/g" \
- -e "s/^\\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\\)=\\(.*\\)/\\1=\${\\1='\\2'}/p"
- ;;
- *)
- # `set' quotes correctly as required by POSIX, so do not add quotes.
- sed -n -e 's/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=${\1=\2}/p'
- ;;
- esac >> confcache
-if cmp -s $cache_file confcache; then
- :
-else
- if test -w $cache_file; then
- echo "updating cache $cache_file"
- cat confcache > $cache_file
- else
- echo "not updating unwritable cache $cache_file"
- fi
-fi
-rm -f confcache
-
-trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15
-
-test "x$prefix" = xNONE && prefix=$ac_default_prefix
-# Let make expand exec_prefix.
-test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
-
-# Any assignment to VPATH causes Sun make to only execute
-# the first set of double-colon rules, so remove it if not needed.
-# If there is a colon in the path, we need to keep it.
-if test "x$srcdir" = x.; then
- ac_vpsub='/^[ ]*VPATH[ ]*=[^:]*$/d'
-fi
-
-trap 'rm -f $CONFIG_STATUS conftest*; exit 1' 1 2 15
-
-# Transform confdefs.h into DEFS.
-# Protect against shell expansion while executing Makefile rules.
-# Protect against Makefile macro expansion.
-cat > conftest.defs <<\EOF
-s%#define \([A-Za-z_][A-Za-z0-9_]*\) *\(.*\)%-D\1=\2%g
-s%[ `~#$^&*(){}\\|;'"<>?]%\\&%g
-s%\[%\\&%g
-s%\]%\\&%g
-s%\$%$$%g
-EOF
-DEFS=`sed -f conftest.defs confdefs.h | tr '\012' ' '`
-rm -f conftest.defs
-
-
-# Without the "./", some shells look in PATH for config.status.
-: ${CONFIG_STATUS=./config.status}
-
-echo creating $CONFIG_STATUS
-rm -f $CONFIG_STATUS
-cat > $CONFIG_STATUS <<EOF
-#! /bin/sh
-# Generated automatically by configure.
-# Run this file to recreate the current configuration.
-# This directory was configured as follows,
-# on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
-#
-# $0 $ac_configure_args
-#
-# Compiler output produced by configure, useful for debugging
-# configure, is in ./config.log if it exists.
-
-ac_cs_usage="Usage: $CONFIG_STATUS [--recheck] [--version] [--help]"
-for ac_option
-do
- case "\$ac_option" in
- -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
- echo "running \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion"
- exec \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion ;;
- -version | --version | --versio | --versi | --vers | --ver | --ve | --v)
- echo "$CONFIG_STATUS generated by autoconf version 2.13"
- exit 0 ;;
- -help | --help | --hel | --he | --h)
- echo "\$ac_cs_usage"; exit 0 ;;
- *) echo "\$ac_cs_usage"; exit 1 ;;
- esac
-done
-
-ac_given_srcdir=$srcdir
-ac_given_INSTALL="$INSTALL"
-
-trap 'rm -fr `echo "Makefile" | sed "s/:[^ ]*//g"` conftest*; exit 1' 1 2 15
-EOF
-cat >> $CONFIG_STATUS <<EOF
-
-# Protect against being on the right side of a sed subst in config.status.
-sed 's/%@/@@/; s/@%/@@/; s/%g\$/@g/; /@g\$/s/[\\\\&%]/\\\\&/g;
- s/@@/%@/; s/@@/@%/; s/@g\$/%g/' > conftest.subs <<\\CEOF
-$ac_vpsub
-$extrasub
-s%@SHELL@%$SHELL%g
-s%@CFLAGS@%$CFLAGS%g
-s%@CPPFLAGS@%$CPPFLAGS%g
-s%@CXXFLAGS@%$CXXFLAGS%g
-s%@FFLAGS@%$FFLAGS%g
-s%@DEFS@%$DEFS%g
-s%@LDFLAGS@%$LDFLAGS%g
-s%@LIBS@%$LIBS%g
-s%@exec_prefix@%$exec_prefix%g
-s%@prefix@%$prefix%g
-s%@program_transform_name@%$program_transform_name%g
-s%@bindir@%$bindir%g
-s%@sbindir@%$sbindir%g
-s%@libexecdir@%$libexecdir%g
-s%@datadir@%$datadir%g
-s%@sysconfdir@%$sysconfdir%g
-s%@sharedstatedir@%$sharedstatedir%g
-s%@localstatedir@%$localstatedir%g
-s%@libdir@%$libdir%g
-s%@includedir@%$includedir%g
-s%@oldincludedir@%$oldincludedir%g
-s%@infodir@%$infodir%g
-s%@mandir@%$mandir%g
-s%@CC@%$CC%g
-s%@INSTALL_PROGRAM@%$INSTALL_PROGRAM%g
-s%@INSTALL_SCRIPT@%$INSTALL_SCRIPT%g
-s%@INSTALL_DATA@%$INSTALL_DATA%g
-s%@host@%$host%g
-s%@host_alias@%$host_alias%g
-s%@host_cpu@%$host_cpu%g
-s%@host_vendor@%$host_vendor%g
-s%@host_os@%$host_os%g
-s%@build@%$build%g
-s%@build_alias@%$build_alias%g
-s%@build_cpu@%$build_cpu%g
-s%@build_vendor@%$build_vendor%g
-s%@build_os@%$build_os%g
-s%@AR@%$AR%g
-s%@RANLIB@%$RANLIB%g
-s%@CPP@%$CPP%g
-
-CEOF
-EOF
-
-cat >> $CONFIG_STATUS <<\EOF
-
-# Split the substitutions into bite-sized pieces for seds with
-# small command number limits, like on Digital OSF/1 and HP-UX.
-ac_max_sed_cmds=90 # Maximum number of lines to put in a sed script.
-ac_file=1 # Number of current file.
-ac_beg=1 # First line for current file.
-ac_end=$ac_max_sed_cmds # Line after last line for current file.
-ac_more_lines=:
-ac_sed_cmds=""
-while $ac_more_lines; do
- if test $ac_beg -gt 1; then
- sed "1,${ac_beg}d; ${ac_end}q" conftest.subs > conftest.s$ac_file
- else
- sed "${ac_end}q" conftest.subs > conftest.s$ac_file
- fi
- if test ! -s conftest.s$ac_file; then
- ac_more_lines=false
- rm -f conftest.s$ac_file
- else
- if test -z "$ac_sed_cmds"; then
- ac_sed_cmds="sed -f conftest.s$ac_file"
- else
- ac_sed_cmds="$ac_sed_cmds | sed -f conftest.s$ac_file"
- fi
- ac_file=`expr $ac_file + 1`
- ac_beg=$ac_end
- ac_end=`expr $ac_end + $ac_max_sed_cmds`
- fi
-done
-if test -z "$ac_sed_cmds"; then
- ac_sed_cmds=cat
-fi
-EOF
-
-cat >> $CONFIG_STATUS <<EOF
-
-CONFIG_FILES=\${CONFIG_FILES-"Makefile"}
-EOF
-cat >> $CONFIG_STATUS <<\EOF
-for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
- # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
- case "$ac_file" in
- *:*) ac_file_in=`echo "$ac_file"|sed 's%[^:]*:%%'`
- ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
- *) ac_file_in="${ac_file}.in" ;;
- esac
-
- # Adjust a relative srcdir, top_srcdir, and INSTALL for subdirectories.
-
- # Remove last slash and all that follows it. Not all systems have dirname.
- ac_dir=`echo $ac_file|sed 's%/[^/][^/]*$%%'`
- if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
- # The file is in a subdirectory.
- test ! -d "$ac_dir" && mkdir "$ac_dir"
- ac_dir_suffix="/`echo $ac_dir|sed 's%^\./%%'`"
- # A "../" for each directory in $ac_dir_suffix.
- ac_dots=`echo $ac_dir_suffix|sed 's%/[^/]*%../%g'`
- else
- ac_dir_suffix= ac_dots=
- fi
-
- case "$ac_given_srcdir" in
- .) srcdir=.
- if test -z "$ac_dots"; then top_srcdir=.
- else top_srcdir=`echo $ac_dots|sed 's%/$%%'`; fi ;;
- /*) srcdir="$ac_given_srcdir$ac_dir_suffix"; top_srcdir="$ac_given_srcdir" ;;
- *) # Relative path.
- srcdir="$ac_dots$ac_given_srcdir$ac_dir_suffix"
- top_srcdir="$ac_dots$ac_given_srcdir" ;;
- esac
-
- case "$ac_given_INSTALL" in
- [/$]*) INSTALL="$ac_given_INSTALL" ;;
- *) INSTALL="$ac_dots$ac_given_INSTALL" ;;
- esac
-
- echo creating "$ac_file"
- rm -f "$ac_file"
- configure_input="Generated automatically from `echo $ac_file_in|sed 's%.*/%%'` by configure."
- case "$ac_file" in
- *Makefile*) ac_comsub="1i\\
-# $configure_input" ;;
- *) ac_comsub= ;;
- esac
-
- ac_file_inputs=`echo $ac_file_in|sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"`
- sed -e "$ac_comsub
-s%@configure_input@%$configure_input%g
-s%@srcdir@%$srcdir%g
-s%@top_srcdir@%$top_srcdir%g
-s%@INSTALL@%$INSTALL%g
-" $ac_file_inputs | (eval "$ac_sed_cmds") > $ac_file
-fi; done
-rm -f conftest.s*
-
-EOF
-cat >> $CONFIG_STATUS <<EOF
-
-EOF
-cat >> $CONFIG_STATUS <<\EOF
-
-exit 0
-EOF
-chmod +x $CONFIG_STATUS
-rm -fr confdefs* $ac_clean_files
-test "$no_create" = yes || ${CONFIG_SHELL-/bin/sh} $CONFIG_STATUS || exit 1
-
+++ /dev/null
-dnl Autoconf configure script for MMALLOC, the GNU mmemory allocator.
-dnl Copyright 2000 Free Software Foundation, Inc.
-dnl
-dnl This file is part of GDB.
-dnl
-dnl This program is free software; you can redistribute it and/or modify
-dnl it under the terms of the GNU General Public License as published by
-dnl the Free Software Foundation; either version 2 of the License, or
-dnl (at your option) any later version.
-dnl
-dnl This program is distributed in the hope that it will be useful,
-dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
-dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-dnl GNU General Public License for more details.
-dnl
-dnl You should have received a copy of the GNU General Public License
-dnl along with this program; if not, write to the Free Software
-dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-dnl Process this file with autoconf to produce a configure script.
-
-AC_PREREQ(2.12.1)dnl
-AC_INIT(mmalloc.c)
-
-AC_PROG_CC
-AC_PROG_INSTALL
-AC_CHECK_TOOL(AR, ar)
-AC_CHECK_TOOL(RANLIB, ranlib, :)
-
-AC_FUNC_MMAP
-AC_CHECK_HEADERS(limits.h stddef.h unistd.h)
-
-BFD_NEED_DECLARATION(sbrk)
-BFD_NEED_DECLARATION(getpagesize)
-
-AC_OUTPUT(Makefile)
+++ /dev/null
-/* Finish access to a mmap'd malloc managed region.
- Copyright 1992 Free Software Foundation, Inc.
-
- Contributed by Fred Fish at Cygnus Support. fnf@cygnus.com
-
-This file is part of the GNU C Library.
-
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
-
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
-
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-#include <sys/types.h>
-#include "mmprivate.h"
-
-/* Terminate access to a mmalloc managed region by unmapping all memory pages
- associated with the region, and closing the file descriptor if it is one
- that we opened.
-
- Returns NULL on success.
-
- Returns the malloc descriptor on failure, which can subsequently be used
- for further action, such as obtaining more information about the nature of
- the failure by examining the preserved errno value.
-
- Note that the malloc descriptor that we are using is currently located in
- region we are about to unmap, so we first make a local copy of it on the
- stack and use the copy. */
-
-PTR
-mmalloc_detach (md)
- PTR md;
-{
- struct mdesc mtemp;
-
- if (md != NULL)
- {
-
- mtemp = *(struct mdesc *) md;
-
- /* Now unmap all the pages associated with this region by asking for a
- negative increment equal to the current size of the region. */
-
- if ((mtemp.morecore (&mtemp, mtemp.base - mtemp.breakval)) == NULL)
- {
- /* Deallocating failed. Update the original malloc descriptor
- with any changes */
- *(struct mdesc *) md = mtemp;
- }
- else
- {
- if (mtemp.flags & MMALLOC_DEVZERO)
- {
- close (mtemp.fd);
- }
- md = NULL;
- }
- }
-
- return (md);
-}
+++ /dev/null
-/* Access for application keys in mmap'd malloc managed region.
- Copyright 1992 Free Software Foundation, Inc.
-
- Contributed by Fred Fish at Cygnus Support. fnf@cygnus.com
-
-This file is part of the GNU C Library.
-
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
-
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
-
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-/* This module provides access to some keys that the application can use to
- provide persistent access to locations in the mapped memory section.
- The intent is that these keys are to be used sparingly as sort of
- persistent global variables which the application can use to reinitialize
- access to data in the mapped region.
-
- For the moment, these keys are simply stored in the malloc descriptor
- itself, in an array of fixed length. This should be fixed so that there
- can be an unlimited number of keys, possibly using a multilevel access
- scheme of some sort. */
-
-#include "mmprivate.h"
-
-int
-mmalloc_setkey (md, keynum, key)
- PTR md;
- int keynum;
- PTR key;
-{
- struct mdesc *mdp = (struct mdesc *) md;
- int result = 0;
-
- if ((mdp != NULL) && (keynum >= 0) && (keynum < MMALLOC_KEYS))
- {
- mdp -> keys [keynum] = key;
- result++;
- }
- return (result);
-}
-
-PTR
-mmalloc_getkey (md, keynum)
- PTR md;
- int keynum;
-{
- struct mdesc *mdp = (struct mdesc *) md;
- PTR keyval = NULL;
-
- if ((mdp != NULL) && (keynum >= 0) && (keynum < MMALLOC_KEYS))
- {
- keyval = mdp -> keys [keynum];
- }
- return (keyval);
-}
+++ /dev/null
-/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
-
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
-
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
-
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-#include <sys/types.h> /* GCC on HP/UX needs this before string.h. */
-#include <string.h> /* Prototypes for memcpy, memmove, memset, etc */
-
-#include "mmprivate.h"
-
-/* Allocate an array of NMEMB elements each SIZE bytes long.
- The entire array is initialized to zeros. */
-
-PTR
-mcalloc (md, nmemb, size)
- PTR md;
- register size_t nmemb;
- register size_t size;
-{
- register PTR result;
-
- if ((result = mmalloc (md, nmemb * size)) != NULL)
- {
- memset (result, 0, nmemb * size);
- }
- return (result);
-}
-
-/* When using this package, provide a version of malloc/realloc/free built
- on top of it, so that if we use the default sbrk() region we will not
- collide with another malloc package trying to do the same thing, if
- the application contains any "hidden" calls to malloc/realloc/free (such
- as inside a system library). */
-
-PTR
-calloc (nmemb, size)
- size_t nmemb;
- size_t size;
-{
- return (mcalloc ((PTR) NULL, nmemb, size));
-}
+++ /dev/null
-/* Free a block of memory allocated by `mmalloc'.
- Copyright 1990, 1991, 1992 Free Software Foundation
-
- Written May 1989 by Mike Haertel.
- Heavily modified Mar 1992 by Fred Fish. (fnf@cygnus.com)
-
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
-
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
-
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.
-
- The author may be reached (Email) at the address mike@ai.mit.edu,
- or (US mail) as Mike Haertel c/o Free Software Foundation. */
-
-#include "mmprivate.h"
-
-/* Return memory to the heap.
- Like `mfree' but don't call a mfree_hook if there is one. */
-
-void
-__mmalloc_free (mdp, ptr)
- struct mdesc *mdp;
- PTR ptr;
-{
- int type;
- size_t block, blocks;
- register size_t i;
- struct list *prev, *next;
-
- block = BLOCK (ptr);
-
- type = mdp -> heapinfo[block].busy.type;
- switch (type)
- {
- case 0:
- /* Get as many statistics as early as we can. */
- mdp -> heapstats.chunks_used--;
- mdp -> heapstats.bytes_used -=
- mdp -> heapinfo[block].busy.info.size * BLOCKSIZE;
- mdp -> heapstats.bytes_free +=
- mdp -> heapinfo[block].busy.info.size * BLOCKSIZE;
-
- /* Find the free cluster previous to this one in the free list.
- Start searching at the last block referenced; this may benefit
- programs with locality of allocation. */
- i = mdp -> heapindex;
- if (i > block)
- {
- while (i > block)
- {
- i = mdp -> heapinfo[i].free.prev;
- }
- }
- else
- {
- do
- {
- i = mdp -> heapinfo[i].free.next;
- }
- while ((i != 0) && (i < block));
- i = mdp -> heapinfo[i].free.prev;
- }
-
- /* Determine how to link this block into the free list. */
- if (block == i + mdp -> heapinfo[i].free.size)
- {
- /* Coalesce this block with its predecessor. */
- mdp -> heapinfo[i].free.size +=
- mdp -> heapinfo[block].busy.info.size;
- block = i;
- }
- else
- {
- /* Really link this block back into the free list. */
- mdp -> heapinfo[block].free.size =
- mdp -> heapinfo[block].busy.info.size;
- mdp -> heapinfo[block].free.next = mdp -> heapinfo[i].free.next;
- mdp -> heapinfo[block].free.prev = i;
- mdp -> heapinfo[i].free.next = block;
- mdp -> heapinfo[mdp -> heapinfo[block].free.next].free.prev = block;
- mdp -> heapstats.chunks_free++;
- }
-
- /* Now that the block is linked in, see if we can coalesce it
- with its successor (by deleting its successor from the list
- and adding in its size). */
- if (block + mdp -> heapinfo[block].free.size ==
- mdp -> heapinfo[block].free.next)
- {
- mdp -> heapinfo[block].free.size
- += mdp -> heapinfo[mdp -> heapinfo[block].free.next].free.size;
- mdp -> heapinfo[block].free.next
- = mdp -> heapinfo[mdp -> heapinfo[block].free.next].free.next;
- mdp -> heapinfo[mdp -> heapinfo[block].free.next].free.prev = block;
- mdp -> heapstats.chunks_free--;
- }
-
- /* Now see if we can return stuff to the system. */
- blocks = mdp -> heapinfo[block].free.size;
- if (blocks >= FINAL_FREE_BLOCKS && block + blocks == mdp -> heaplimit
- && mdp -> morecore (mdp, 0) == ADDRESS (block + blocks))
- {
- register size_t bytes = blocks * BLOCKSIZE;
- mdp -> heaplimit -= blocks;
- mdp -> morecore (mdp, -bytes);
- mdp -> heapinfo[mdp -> heapinfo[block].free.prev].free.next
- = mdp -> heapinfo[block].free.next;
- mdp -> heapinfo[mdp -> heapinfo[block].free.next].free.prev
- = mdp -> heapinfo[block].free.prev;
- block = mdp -> heapinfo[block].free.prev;
- mdp -> heapstats.chunks_free--;
- mdp -> heapstats.bytes_free -= bytes;
- }
-
- /* Set the next search to begin at this block. */
- mdp -> heapindex = block;
- break;
-
- default:
- /* Do some of the statistics. */
- mdp -> heapstats.chunks_used--;
- mdp -> heapstats.bytes_used -= 1 << type;
- mdp -> heapstats.chunks_free++;
- mdp -> heapstats.bytes_free += 1 << type;
-
- /* Get the address of the first free fragment in this block. */
- prev = (struct list *)
- ((char *) ADDRESS(block) +
- (mdp -> heapinfo[block].busy.info.frag.first << type));
-
- if (mdp -> heapinfo[block].busy.info.frag.nfree ==
- (BLOCKSIZE >> type) - 1)
- {
- /* If all fragments of this block are free, remove them
- from the fragment list and free the whole block. */
- next = prev;
- for (i = 1; i < (size_t) (BLOCKSIZE >> type); ++i)
- {
- next = next -> next;
- }
- prev -> prev -> next = next;
- if (next != NULL)
- {
- next -> prev = prev -> prev;
- }
- mdp -> heapinfo[block].busy.type = 0;
- mdp -> heapinfo[block].busy.info.size = 1;
-
- /* Keep the statistics accurate. */
- mdp -> heapstats.chunks_used++;
- mdp -> heapstats.bytes_used += BLOCKSIZE;
- mdp -> heapstats.chunks_free -= BLOCKSIZE >> type;
- mdp -> heapstats.bytes_free -= BLOCKSIZE;
-
- mfree ((PTR) mdp, (PTR) ADDRESS(block));
- }
- else if (mdp -> heapinfo[block].busy.info.frag.nfree != 0)
- {
- /* If some fragments of this block are free, link this
- fragment into the fragment list after the first free
- fragment of this block. */
- next = (struct list *) ptr;
- next -> next = prev -> next;
- next -> prev = prev;
- prev -> next = next;
- if (next -> next != NULL)
- {
- next -> next -> prev = next;
- }
- ++mdp -> heapinfo[block].busy.info.frag.nfree;
- }
- else
- {
- /* No fragments of this block are free, so link this
- fragment into the fragment list and announce that
- it is the first free fragment of this block. */
- prev = (struct list *) ptr;
- mdp -> heapinfo[block].busy.info.frag.nfree = 1;
- mdp -> heapinfo[block].busy.info.frag.first =
- RESIDUAL (ptr, BLOCKSIZE) >> type;
- prev -> next = mdp -> fraghead[type].next;
- prev -> prev = &mdp -> fraghead[type];
- prev -> prev -> next = prev;
- if (prev -> next != NULL)
- {
- prev -> next -> prev = prev;
- }
- }
- break;
- }
-}
-
-/* Return memory to the heap. */
-
-void
-mfree (md, ptr)
- PTR md;
- PTR ptr;
-{
- struct mdesc *mdp;
- register struct alignlist *l;
-
- if (ptr != NULL)
- {
- mdp = MD_TO_MDP (md);
- for (l = mdp -> aligned_blocks; l != NULL; l = l -> next)
- {
- if (l -> aligned == ptr)
- {
- l -> aligned = NULL; /* Mark the slot in the list as free. */
- ptr = l -> exact;
- break;
- }
- }
- if (mdp -> mfree_hook != NULL)
- {
- (*mdp -> mfree_hook) (md, ptr);
- }
- else
- {
- __mmalloc_free (mdp, ptr);
- }
- }
-}
-
-/* When using this package, provide a version of malloc/realloc/free built
- on top of it, so that if we use the default sbrk() region we will not
- collide with another malloc package trying to do the same thing, if
- the application contains any "hidden" calls to malloc/realloc/free (such
- as inside a system library). */
-
-void
-free (ptr)
- PTR ptr;
-{
- mfree ((PTR) NULL, ptr);
-}
+++ /dev/null
-/* Build the entire mmalloc library as a single object module. This
- avoids having clients pick up part of their allocation routines
- from mmalloc and part from libc, which results in undefined
- behavior. It should also still be possible to build the library
- as a standard library with multiple objects.
-
- Copyright 1996, 2000 Free Software Foundation
-
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
-
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
-
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-#ifdef HAVE_UNISTD_H
-#include <unistd.h> /* Prototypes for lseek, sbrk (maybe) */
-#endif
-#include "mcalloc.c"
-#include "mfree.c"
-#include "mmalloc.c"
-#include "mmcheck.c"
-#include "mmemalign.c"
-#include "mmstats.c"
-#include "mmtrace.c"
-#include "mrealloc.c"
-#include "mvalloc.c"
-#include "mmap-sup.c"
-#include "attach.c"
-#include "detach.c"
-#include "keys.c"
-#include "sbrk-sup.c"
+++ /dev/null
-/* Memory allocator `malloc'.
- Copyright 1990, 1991, 1992 Free Software Foundation
-
- Written May 1989 by Mike Haertel.
- Heavily modified Mar 1992 by Fred Fish for mmap'd version.
-
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
-
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
-
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.
-
- The author may be reached (Email) at the address mike@ai.mit.edu,
- or (US mail) as Mike Haertel c/o Free Software Foundation. */
-
-#include <string.h> /* Prototypes for memcpy, memmove, memset, etc */
-
-#include "mmprivate.h"
-
-/* Prototypes for local functions */
-
-static int initialize PARAMS ((struct mdesc *));
-static PTR morecore PARAMS ((struct mdesc *, size_t));
-static PTR align PARAMS ((struct mdesc *, size_t));
-
-/* Aligned allocation. */
-
-static PTR
-align (mdp, size)
- struct mdesc *mdp;
- size_t size;
-{
- PTR result;
- unsigned long int adj;
-
- result = mdp -> morecore (mdp, size);
- adj = RESIDUAL (result, BLOCKSIZE);
- if (adj != 0)
- {
- adj = BLOCKSIZE - adj;
- mdp -> morecore (mdp, adj);
- result = (char *) result + adj;
- }
- return (result);
-}
-
-/* Set everything up and remember that we have. */
-
-static int
-initialize (mdp)
- struct mdesc *mdp;
-{
- mdp -> heapsize = HEAP / BLOCKSIZE;
- mdp -> heapinfo = (malloc_info *)
- align (mdp, mdp -> heapsize * sizeof (malloc_info));
- if (mdp -> heapinfo == NULL)
- {
- return (0);
- }
- memset ((PTR)mdp -> heapinfo, 0, mdp -> heapsize * sizeof (malloc_info));
- mdp -> heapinfo[0].free.size = 0;
- mdp -> heapinfo[0].free.next = mdp -> heapinfo[0].free.prev = 0;
- mdp -> heapindex = 0;
- mdp -> heapbase = (char *) mdp -> heapinfo;
- mdp -> flags |= MMALLOC_INITIALIZED;
- return (1);
-}
-
-/* Get neatly aligned memory, initializing or
- growing the heap info table as necessary. */
-
-static PTR
-morecore (mdp, size)
- struct mdesc *mdp;
- size_t size;
-{
- PTR result;
- malloc_info *newinfo, *oldinfo;
- size_t newsize;
-
- result = align (mdp, size);
- if (result == NULL)
- {
- return (NULL);
- }
-
- /* Check if we need to grow the info table. */
- if ((size_t) BLOCK ((char *) result + size) > mdp -> heapsize)
- {
- newsize = mdp -> heapsize;
- while ((size_t) BLOCK ((char *) result + size) > newsize)
- {
- newsize *= 2;
- }
- newinfo = (malloc_info *) align (mdp, newsize * sizeof (malloc_info));
- if (newinfo == NULL)
- {
- mdp -> morecore (mdp, -size);
- return (NULL);
- }
- memset ((PTR) newinfo, 0, newsize * sizeof (malloc_info));
- memcpy ((PTR) newinfo, (PTR) mdp -> heapinfo,
- mdp -> heapsize * sizeof (malloc_info));
- oldinfo = mdp -> heapinfo;
- newinfo[BLOCK (oldinfo)].busy.type = 0;
- newinfo[BLOCK (oldinfo)].busy.info.size
- = BLOCKIFY (mdp -> heapsize * sizeof (malloc_info));
- mdp -> heapinfo = newinfo;
- __mmalloc_free (mdp, (PTR)oldinfo);
- mdp -> heapsize = newsize;
- }
-
- mdp -> heaplimit = BLOCK ((char *) result + size);
- return (result);
-}
-
-/* Allocate memory from the heap. */
-
-PTR
-mmalloc (md, size)
- PTR md;
- size_t size;
-{
- struct mdesc *mdp;
- PTR result;
- size_t block, blocks, lastblocks, start;
- register size_t i;
- struct list *next;
- register size_t log;
-
- if (size == 0)
- {
- return (NULL);
- }
-
- mdp = MD_TO_MDP (md);
-
- if (mdp -> mmalloc_hook != NULL)
- {
- return ((*mdp -> mmalloc_hook) (md, size));
- }
-
- if (!(mdp -> flags & MMALLOC_INITIALIZED))
- {
- if (!initialize (mdp))
- {
- return (NULL);
- }
- }
-
- if (size < sizeof (struct list))
- {
- size = sizeof (struct list);
- }
-
- /* Determine the allocation policy based on the request size. */
- if (size <= BLOCKSIZE / 2)
- {
- /* Small allocation to receive a fragment of a block.
- Determine the logarithm to base two of the fragment size. */
- log = 1;
- --size;
- while ((size /= 2) != 0)
- {
- ++log;
- }
-
- /* Look in the fragment lists for a
- free fragment of the desired size. */
- next = mdp -> fraghead[log].next;
- if (next != NULL)
- {
- /* There are free fragments of this size.
- Pop a fragment out of the fragment list and return it.
- Update the block's nfree and first counters. */
- result = (PTR) next;
- next -> prev -> next = next -> next;
- if (next -> next != NULL)
- {
- next -> next -> prev = next -> prev;
- }
- block = BLOCK (result);
- if (--mdp -> heapinfo[block].busy.info.frag.nfree != 0)
- {
- mdp -> heapinfo[block].busy.info.frag.first =
- RESIDUAL (next -> next, BLOCKSIZE) >> log;
- }
-
- /* Update the statistics. */
- mdp -> heapstats.chunks_used++;
- mdp -> heapstats.bytes_used += 1 << log;
- mdp -> heapstats.chunks_free--;
- mdp -> heapstats.bytes_free -= 1 << log;
- }
- else
- {
- /* No free fragments of the desired size, so get a new block
- and break it into fragments, returning the first. */
- result = mmalloc (md, BLOCKSIZE);
- if (result == NULL)
- {
- return (NULL);
- }
-
- /* Link all fragments but the first into the free list. */
- for (i = 1; i < (size_t) (BLOCKSIZE >> log); ++i)
- {
- next = (struct list *) ((char *) result + (i << log));
- next -> next = mdp -> fraghead[log].next;
- next -> prev = &mdp -> fraghead[log];
- next -> prev -> next = next;
- if (next -> next != NULL)
- {
- next -> next -> prev = next;
- }
- }
-
- /* Initialize the nfree and first counters for this block. */
- block = BLOCK (result);
- mdp -> heapinfo[block].busy.type = log;
- mdp -> heapinfo[block].busy.info.frag.nfree = i - 1;
- mdp -> heapinfo[block].busy.info.frag.first = i - 1;
-
- mdp -> heapstats.chunks_free += (BLOCKSIZE >> log) - 1;
- mdp -> heapstats.bytes_free += BLOCKSIZE - (1 << log);
- mdp -> heapstats.bytes_used -= BLOCKSIZE - (1 << log);
- }
- }
- else
- {
- /* Large allocation to receive one or more blocks.
- Search the free list in a circle starting at the last place visited.
- If we loop completely around without finding a large enough
- space we will have to get more memory from the system. */
- blocks = BLOCKIFY(size);
- start = block = MALLOC_SEARCH_START;
- while (mdp -> heapinfo[block].free.size < blocks)
- {
- block = mdp -> heapinfo[block].free.next;
- if (block == start)
- {
- /* Need to get more from the system. Check to see if
- the new core will be contiguous with the final free
- block; if so we don't need to get as much. */
- block = mdp -> heapinfo[0].free.prev;
- lastblocks = mdp -> heapinfo[block].free.size;
- if (mdp -> heaplimit != 0 &&
- block + lastblocks == mdp -> heaplimit &&
- mdp -> morecore (mdp, 0) == ADDRESS(block + lastblocks) &&
- (morecore (mdp, (blocks - lastblocks) * BLOCKSIZE)) != NULL)
- {
- /* Which block we are extending (the `final free
- block' referred to above) might have changed, if
- it got combined with a freed info table. */
- block = mdp -> heapinfo[0].free.prev;
-
- mdp -> heapinfo[block].free.size += (blocks - lastblocks);
- mdp -> heapstats.bytes_free +=
- (blocks - lastblocks) * BLOCKSIZE;
- continue;
- }
- result = morecore(mdp, blocks * BLOCKSIZE);
- if (result == NULL)
- {
- return (NULL);
- }
- block = BLOCK (result);
- mdp -> heapinfo[block].busy.type = 0;
- mdp -> heapinfo[block].busy.info.size = blocks;
- mdp -> heapstats.chunks_used++;
- mdp -> heapstats.bytes_used += blocks * BLOCKSIZE;
- return (result);
- }
- }
-
- /* At this point we have found a suitable free list entry.
- Figure out how to remove what we need from the list. */
- result = ADDRESS(block);
- if (mdp -> heapinfo[block].free.size > blocks)
- {
- /* The block we found has a bit left over,
- so relink the tail end back into the free list. */
- mdp -> heapinfo[block + blocks].free.size
- = mdp -> heapinfo[block].free.size - blocks;
- mdp -> heapinfo[block + blocks].free.next
- = mdp -> heapinfo[block].free.next;
- mdp -> heapinfo[block + blocks].free.prev
- = mdp -> heapinfo[block].free.prev;
- mdp -> heapinfo[mdp -> heapinfo[block].free.prev].free.next
- = mdp -> heapinfo[mdp -> heapinfo[block].free.next].free.prev
- = mdp -> heapindex = block + blocks;
- }
- else
- {
- /* The block exactly matches our requirements,
- so just remove it from the list. */
- mdp -> heapinfo[mdp -> heapinfo[block].free.next].free.prev
- = mdp -> heapinfo[block].free.prev;
- mdp -> heapinfo[mdp -> heapinfo[block].free.prev].free.next
- = mdp -> heapindex = mdp -> heapinfo[block].free.next;
- mdp -> heapstats.chunks_free--;
- }
-
- mdp -> heapinfo[block].busy.type = 0;
- mdp -> heapinfo[block].busy.info.size = blocks;
- mdp -> heapstats.chunks_used++;
- mdp -> heapstats.bytes_used += blocks * BLOCKSIZE;
- mdp -> heapstats.bytes_free -= blocks * BLOCKSIZE;
- }
-
- return (result);
-}
-
-/* When using this package, provide a version of malloc/realloc/free built
- on top of it, so that if we use the default sbrk() region we will not
- collide with another malloc package trying to do the same thing, if
- the application contains any "hidden" calls to malloc/realloc/free (such
- as inside a system library). */
-
-PTR
-malloc (size)
- size_t size;
-{
- PTR result;
-
- result = mmalloc ((PTR) NULL, size);
- return (result);
-}
+++ /dev/null
-#ifndef MMALLOC_H
-#define MMALLOC_H 1
-
-#ifdef HAVE_STDDEF_H
-# include <stddef.h>
-#else
-# include <sys/types.h> /* for size_t */
-# include <stdio.h> /* for NULL */
-#endif
-
-#include "ansidecl.h"
-
-/* Allocate SIZE bytes of memory. */
-
-extern PTR mmalloc PARAMS ((PTR, size_t));
-
-/* Re-allocate the previously allocated block in PTR, making the new block
- SIZE bytes long. */
-
-extern PTR mrealloc PARAMS ((PTR, PTR, size_t));
-
-/* Allocate NMEMB elements of SIZE bytes each, all initialized to 0. */
-
-extern PTR mcalloc PARAMS ((PTR, size_t, size_t));
-
-/* Free a block allocated by `mmalloc', `mrealloc' or `mcalloc'. */
-
-extern void mfree PARAMS ((PTR, PTR));
-
-/* Allocate SIZE bytes allocated to ALIGNMENT bytes. */
-
-extern PTR mmemalign PARAMS ((PTR, size_t, size_t));
-
-/* Allocate SIZE bytes on a page boundary. */
-
-extern PTR mvalloc PARAMS ((PTR, size_t));
-
-/* Activate a standard collection of debugging hooks. */
-
-extern int mmcheck PARAMS ((PTR, void (*) (void)));
-
-extern int mmcheckf PARAMS ((PTR, void (*) (void), int));
-
-/* Pick up the current statistics. (see FIXME elsewhere) */
-
-extern struct mstats mmstats PARAMS ((PTR));
-
-extern PTR mmalloc_attach PARAMS ((int, PTR));
-
-extern PTR mmalloc_detach PARAMS ((PTR));
-
-extern int mmalloc_setkey PARAMS ((PTR, int, PTR));
-
-extern PTR mmalloc_getkey PARAMS ((PTR, int));
-
-extern int mmalloc_errno PARAMS ((PTR));
-
-extern int mmtrace PARAMS ((void));
-
-extern PTR mmalloc_findbase PARAMS ((int));
-
-#endif /* MMALLOC_H */
+++ /dev/null
-\input texinfo @c -*- Texinfo -*-
-@setfilename mmalloc.info
-
-@ifinfo
-@format
-START-INFO-DIR-ENTRY
-* Mmalloc: (mmalloc). The GNU mapped-malloc package.
-END-INFO-DIR-ENTRY
-@end format
-
-This file documents the GNU mmalloc (mapped-malloc) package, written by
-fnf@@cygnus.com, based on GNU malloc written by mike@@ai.mit.edu.
-
-Copyright (C) 1992 Free Software Foundation, Inc.
-
-Permission is granted to make and distribute verbatim copies of
-this manual provided the copyright notice and this permission notice
-are preserved on all copies.
-
-@ignore
-Permission is granted to process this file through Tex and print the
-results, provided the printed document carries copying permission
-notice identical to this one except for the removal of this paragraph
-(this paragraph not being relevant to the printed manual).
-
-@end ignore
-Permission is granted to copy and distribute modified versions of this
-manual under the conditions for verbatim copying, provided also that the
-entire resulting derived work is distributed under the terms of a
-permission notice identical to this one.
-
-Permission is granted to copy and distribute translations of this manual
-into another language, under the above conditions for modified versions.
-@end ifinfo
-@iftex
-@c @finalout
-@setchapternewpage odd
-@settitle MMALLOC, the GNU memory-mapped malloc package
-@titlepage
-@title mmalloc
-@subtitle The GNU memory-mapped malloc package
-@author Fred Fish
-@author Cygnus Support
-@author Mike Haertel
-@author Free Software Foundation
-@page
-
-@tex
-\def\$#1${{#1}} % Kluge: collect RCS revision info without $...$
-\xdef\manvers{\$Revision$} % For use in headers, footers too
-{\parskip=0pt
-\hfill Cygnus Support\par
-\hfill fnf\@cygnus.com\par
-\hfill {\it MMALLOC, the GNU memory-mapped malloc package}, \manvers\par
-\hfill \TeX{}info \texinfoversion\par
-}
-@end tex
-
-@vskip 0pt plus 1filll
-Copyright @copyright{} 1992 Free Software Foundation, Inc.
-
-Permission is granted to make and distribute verbatim copies of
-this manual provided the copyright notice and this permission notice
-are preserved on all copies.
-
-Permission is granted to copy and distribute modified versions of this
-manual under the conditions for verbatim copying, provided also that
-the entire resulting derived work is distributed under the terms of a
-permission notice identical to this one.
-
-Permission is granted to copy and distribute translations of this manual
-into another language, under the above conditions for modified versions.
-@end titlepage
-@end iftex
-
-@ifinfo
-@node Top, Overview, (dir), (dir)
-@top mmalloc
-This file documents the GNU memory-mapped malloc package mmalloc.
-
-@menu
-* Overview:: Overall Description
-* Implementation:: Implementation
-
- --- The Detailed Node Listing ---
-
-Implementation
-
-* Compatibility:: Backwards Compatibility
-* Functions:: Function Descriptions
-@end menu
-
-@end ifinfo
-
-@node Overview, Implementation, Top, Top
-@chapter Overall Description
-
-This is a heavily modified version of GNU @code{malloc}. It uses
-@code{mmap} as the basic mechanism for obtaining memory from the
-system, rather than @code{sbrk}. This gives it several advantages over the
-more traditional malloc:
-
-@itemize @bullet
-@item
-Several different heaps can be used, each of them growing
-or shinking under control of @code{mmap}, with the @code{mmalloc} functions
-using a specific heap on a call by call basis.
-
-@item
-By using @code{mmap}, it is easy to create heaps which are intended to
-be persistent and exist as a filesystem object after the creating
-process has gone away.
-
-@item
-Because multiple heaps can be managed, data used for a
-specific purpose can be allocated into its own heap, making
-it easier to allow applications to ``dump'' and ``restore'' initialized
-malloc-managed memory regions. For example, the ``unexec'' hack popularized
-by GNU Emacs could potentially go away.
-@end itemize
-
-@node Implementation, , Overview, Top
-@chapter Implementation
-
-The @code{mmalloc} functions contain no internal static state. All
-@code{mmalloc} internal data is allocated in the mapped in region, along
-with the user data that it manages. This allows it to manage multiple
-such regions and to ``pick up where it left off'' when such regions are
-later dynamically mapped back in.
-
-In some sense, malloc has been ``purified'' to contain no internal state
-information and generalized to use multiple memory regions rather than a
-single region managed by @code{sbrk}. However the new routines now need an
-extra parameter which informs @code{mmalloc} which memory region it is dealing
-with (along with other information). This parameter is called the
-@dfn{malloc descriptor}.
-
-The functions initially provided by @code{mmalloc} are:
-
-@example
-void *mmalloc_attach (int fd, void *baseaddr);
-void *mmalloc_detach (void *md);
-int mmalloc_errno (void *md);
-int mmalloc_setkey (void *md, int keynum, void *key);
-void *mmalloc_getkey (void *md, int keynum);
-
-void *mmalloc (void *md, size_t size);
-void *mrealloc (void *md, void *ptr, size_t size);
-void *mvalloc (void *md, size_t size);
-void mfree (void *md, void *ptr);
-@end example
-
-@menu
-* Compatibility:: Backwards Compatibility
-* Functions:: Function Descriptions
-@end menu
-
-@node Compatibility, Functions, Implementation, Implementation
-@section Backwards Compatibility
-
-To allow a single malloc package to be used in a given application,
-provision is made for the traditional @code{malloc}, @code{realloc}, and
-@code{free} functions to be implemented as special cases of the
-@code{mmalloc} functions. In particular, if any of the functions that
-expect malloc descriptors are called with a @code{NULL} pointer rather than a
-valid malloc descriptor, then they default to using an @code{sbrk} managed
-region.
-The @code{mmalloc} package provides compatible @code{malloc}, @code{realloc},
-and @code{free} functions using this mechanism internally.
-Applications can avoid this extra interface layer by simply including the
-following defines:
-
-@example
-#define malloc(size) mmalloc ((void *)0, (size))
-#define realloc(ptr,size) mrealloc ((void *)0, (ptr), (size));
-#define free(ptr) mfree ((void *)0, (ptr))
-@end example
-
-@noindent
-or replace the existing @code{malloc}, @code{realloc}, and @code{free}
-calls with the above patterns if using @code{#define} causes problems.
-
-@node Functions, , Compatibility, Implementation
-@section Function Descriptions
-
-These are the details on the functions that make up the @code{mmalloc}
-package.
-
-@table @code
-@item void *mmalloc_attach (int @var{fd}, void *@var{baseaddr});
-Initialize access to a @code{mmalloc} managed region.
-
-If @var{fd} is a valid file descriptor for an open file, then data for the
-@code{mmalloc} managed region is mapped to that file. Otherwise
-@file{/dev/zero} is used and the data will not exist in any filesystem object.
-
-If the open file corresponding to @var{fd} is from a previous use of
-@code{mmalloc} and passes some basic sanity checks to ensure that it is
-compatible with the current @code{mmalloc} package, then its data is
-mapped in and is immediately accessible at the same addresses in
-the current process as the process that created the file.
-
-If @var{baseaddr} is not @code{NULL}, the mapping is established
-starting at the specified address in the process address space. If
-@var{baseaddr} is @code{NULL}, the @code{mmalloc} package chooses a
-suitable address at which to start the mapped region, which will be the
-value of the previous mapping if opening an existing file which was
-previously built by @code{mmalloc}, or for new files will be a value
-chosen by @code{mmap}.
-
-Specifying @var{baseaddr} provides more control over where the regions
-start and how big they can be before bumping into existing mapped
-regions or future mapped regions.
-
-On success, returns a malloc descriptor which is used in subsequent
-calls to other @code{mmalloc} package functions. It is explicitly
-@samp{void *} (@samp{char *} for systems that don't fully support
-@code{void}) so that users of the package don't have to worry about the
-actual implementation details.
-
-On failure returns @code{NULL}.
-
-@item void *mmalloc_detach (void *@var{md});
-Terminate access to a @code{mmalloc} managed region identified by the
-descriptor @var{md}, by closing the base file and unmapping all memory
-pages associated with the region.
-
-Returns @code{NULL} on success.
-
-Returns the malloc descriptor on failure, which can subsequently
-be used for further action (such as obtaining more information about
-the nature of the failure).
-
-@item void *mmalloc (void *@var{md}, size_t @var{size});
-Given an @code{mmalloc} descriptor @var{md}, allocate additional memory of
-@var{size} bytes in the associated mapped region.
-
-@item *mrealloc (void *@var{md}, void *@var{ptr}, size_t @var{size});
-Given an @code{mmalloc} descriptor @var{md} and a pointer to memory
-previously allocated by @code{mmalloc} in @var{ptr}, reallocate the
-memory to be @var{size} bytes long, possibly moving the existing
-contents of memory if necessary.
-
-@item void *mvalloc (void *@var{md}, size_t @var{size});
-Like @code{mmalloc} but the resulting memory is aligned on a page boundary.
-
-@item void mfree (void *@var{md}, void *@var{ptr});
-Given an @code{mmalloc} descriptor @var{md} and a pointer to memory previously
-allocated by @code{mmalloc} in @var{ptr}, free the previously allocated memory.
-
-@item int mmalloc_errno (void *@var{md});
-Given a @code{mmalloc} descriptor, if the last @code{mmalloc} operation
-failed for some reason due to a system call failure, then
-returns the associated @code{errno}. Returns 0 otherwise.
-(This function is not yet implemented).
-@end table
-
-@bye
+++ /dev/null
-/* Support for an sbrk-like function that uses mmap.
- Copyright 1992, 2000 Free Software Foundation, Inc.
-
- Contributed by Fred Fish at Cygnus Support. fnf@cygnus.com
-
-This file is part of the GNU C Library.
-
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
-
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
-
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-#if defined(HAVE_MMAP)
-
-#ifdef HAVE_UNISTD_H
-#include <unistd.h> /* Prototypes for lseek */
-#endif
-#include <stdio.h>
-#include <fcntl.h>
-#include <sys/mman.h>
-
-#ifndef SEEK_SET
-#define SEEK_SET 0
-#endif
-
-#include "mmprivate.h"
-
-/* Cache the pagesize for the current host machine. Note that if the host
- does not readily provide a getpagesize() function, we need to emulate it
- elsewhere, not clutter up this file with lots of kluges to try to figure
- it out. */
-
-static size_t pagesize;
-#if NEED_DECLARATION_GETPAGESIZE
-extern int getpagesize PARAMS ((void));
-#endif
-
-#define PAGE_ALIGN(addr) (caddr_t) (((long)(addr) + pagesize - 1) & \
- ~(pagesize - 1))
-
-
-/* Return MAP_PRIVATE if MDP represents /dev/zero. Otherwise, return
- MAP_SHARED. */
-
-#define MAP_PRIVATE_OR_SHARED(MDP) ((MDP -> flags & MMALLOC_DEVZERO) \
- ? MAP_PRIVATE \
- : MAP_SHARED)
-
-
-/* Get core for the memory region specified by MDP, using SIZE as the
- amount to either add to or subtract from the existing region. Works
- like sbrk(), but using mmap(). */
-
-PTR
-__mmalloc_mmap_morecore (mdp, size)
- struct mdesc *mdp;
- int size;
-{
- PTR result = NULL;
- off_t foffset; /* File offset at which new mapping will start */
- size_t mapbytes; /* Number of bytes to map */
- caddr_t moveto; /* Address where we wish to move "break value" to */
- caddr_t mapto; /* Address we actually mapped to */
- char buf = 0; /* Single byte to write to extend mapped file */
-
- if (pagesize == 0)
- {
- pagesize = getpagesize ();
- }
- if (size == 0)
- {
- /* Just return the current "break" value. */
- result = mdp -> breakval;
- }
- else if (size < 0)
- {
- /* We are deallocating memory. If the amount requested would cause
- us to try to deallocate back past the base of the mmap'd region
- then do nothing, and return NULL. Otherwise, deallocate the
- memory and return the old break value. */
- if (mdp -> breakval + size >= mdp -> base)
- {
- result = (PTR) mdp -> breakval;
- mdp -> breakval += size;
- moveto = PAGE_ALIGN (mdp -> breakval);
- munmap (moveto, (size_t) (mdp -> top - moveto));
- mdp -> top = moveto;
- }
- }
- else
- {
- /* We are allocating memory. Make sure we have an open file
- descriptor and then go on to get the memory. */
- if (mdp -> fd < 0)
- {
- result = NULL;
- }
- else if (mdp -> breakval + size > mdp -> top)
- {
- /* The request would move us past the end of the currently
- mapped memory, so map in enough more memory to satisfy
- the request. This means we also have to grow the mapped-to
- file by an appropriate amount, since mmap cannot be used
- to extend a file. */
- moveto = PAGE_ALIGN (mdp -> breakval + size);
- mapbytes = moveto - mdp -> top;
- foffset = mdp -> top - mdp -> base;
- /* FIXME: Test results of lseek() and write() */
- lseek (mdp -> fd, foffset + mapbytes - 1, SEEK_SET);
- write (mdp -> fd, &buf, 1);
- if (mdp -> base == 0)
- {
- /* Let mmap pick the map start address */
- mapto = mmap (0, mapbytes, PROT_READ | PROT_WRITE,
- MAP_PRIVATE_OR_SHARED (mdp), mdp -> fd, foffset);
- if (mapto != (caddr_t) -1)
- {
- mdp -> base = mdp -> breakval = mapto;
- mdp -> top = mdp -> base + mapbytes;
- result = (PTR) mdp -> breakval;
- mdp -> breakval += size;
- }
- }
- else
- {
- mapto = mmap (mdp -> top, mapbytes, PROT_READ | PROT_WRITE,
- MAP_PRIVATE_OR_SHARED (mdp) | MAP_FIXED, mdp -> fd,
- foffset);
- if (mapto == mdp -> top)
- {
- mdp -> top = moveto;
- result = (PTR) mdp -> breakval;
- mdp -> breakval += size;
- }
- }
- }
- else
- {
- result = (PTR) mdp -> breakval;
- mdp -> breakval += size;
- }
- }
- return (result);
-}
-
-PTR
-__mmalloc_remap_core (mdp)
- struct mdesc *mdp;
-{
- caddr_t base;
-
- /* FIXME: Quick hack, needs error checking and other attention. */
-
- base = mmap (mdp -> base, mdp -> top - mdp -> base,
- PROT_READ | PROT_WRITE, MAP_PRIVATE_OR_SHARED (mdp) | MAP_FIXED,
- mdp -> fd, 0);
- return ((PTR) base);
-}
-
-PTR
-mmalloc_findbase (size)
- int size;
-{
- int fd;
- int flags;
- caddr_t base = NULL;
-
-#ifdef MAP_ANONYMOUS
- flags = MAP_PRIVATE | MAP_ANONYMOUS;
- fd = -1;
-#else
-#ifdef MAP_FILE
- flags = MAP_PRIVATE | MAP_FILE;
-#else
- flags = MAP_PRIVATE;
-#endif
- fd = open ("/dev/zero", O_RDWR);
- if (fd != -1)
- {
- return ((PTR) NULL);
- }
-#endif
- base = mmap (0, size, PROT_READ | PROT_WRITE, flags, fd, 0);
- if (base != (caddr_t) -1)
- {
- munmap (base, (size_t) size);
- }
- if (fd != -1)
- {
- close (fd);
- }
- if (base == 0)
- {
- /* Don't allow mapping at address zero. We use that value
- to signal an error return, and besides, it is useful to
- catch NULL pointers if it is unmapped. Instead start
- at the next page boundary. */
- base = (caddr_t) getpagesize ();
- }
- else if (base == (caddr_t) -1)
- {
- base = NULL;
- }
- return ((PTR) base);
-}
-
-#else /* defined(HAVE_MMAP) */
-/* Prevent "empty translation unit" warnings from the idiots at X3J11. */
-static char ansi_c_idiots = 69;
-#endif /* defined(HAVE_MMAP) */
+++ /dev/null
-/* Standard debugging hooks for `mmalloc'.
- Copyright 1990, 1991, 1992 Free Software Foundation
-
- Written May 1989 by Mike Haertel.
- Heavily modified Mar 1992 by Fred Fish (fnf@cygnus.com)
-
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
-
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
-
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.
-
- The author may be reached (Email) at the address mike@ai.mit.edu,
- or (US mail) as Mike Haertel c/o Free Software Foundation. */
-
-#include "mmprivate.h"
-
-/* Default function to call when something awful happens. The application
- can specify an alternate function to be called instead (and probably will
- want to). */
-
-extern void abort PARAMS ((void));
-
-/* Arbitrary magical numbers. */
-
-#define MAGICWORD (unsigned int) 0xfedabeeb /* Active chunk */
-#define MAGICWORDFREE (unsigned int) 0xdeadbeef /* Inactive chunk */
-#define MAGICBYTE ((char) 0xd7)
-
-/* Each memory allocation is bounded by a header structure and a trailer
- byte. I.E.
-
- <size><magicword><user's allocation><magicbyte>
-
- The pointer returned to the user points to the first byte in the
- user's allocation area. The magic word can be tested to detect
- buffer underruns and the magic byte can be tested to detect overruns. */
-
-struct hdr
- {
- size_t size; /* Exact size requested by user. */
- unsigned long int magic; /* Magic number to check header integrity. */
- };
-
-static void checkhdr PARAMS ((struct mdesc *, CONST struct hdr *));
-static void mfree_check PARAMS ((PTR, PTR));
-static PTR mmalloc_check PARAMS ((PTR, size_t));
-static PTR mrealloc_check PARAMS ((PTR, PTR, size_t));
-
-/* Check the magicword and magicbyte, and if either is corrupted then
- call the emergency abort function specified for the heap in use. */
-
-static void
-checkhdr (mdp, hdr)
- struct mdesc *mdp;
- CONST struct hdr *hdr;
-{
- if (hdr -> magic != MAGICWORD ||
- ((char *) &hdr[1])[hdr -> size] != MAGICBYTE)
- {
- (*mdp -> abortfunc)();
- }
-}
-
-static void
-mfree_check (md, ptr)
- PTR md;
- PTR ptr;
-{
- struct hdr *hdr = ((struct hdr *) ptr) - 1;
- struct mdesc *mdp;
-
- mdp = MD_TO_MDP (md);
- checkhdr (mdp, hdr);
- hdr -> magic = MAGICWORDFREE;
- mdp -> mfree_hook = NULL;
- mfree (md, (PTR)hdr);
- mdp -> mfree_hook = mfree_check;
-}
-
-static PTR
-mmalloc_check (md, size)
- PTR md;
- size_t size;
-{
- struct hdr *hdr;
- struct mdesc *mdp;
- size_t nbytes;
-
- mdp = MD_TO_MDP (md);
- mdp -> mmalloc_hook = NULL;
- nbytes = sizeof (struct hdr) + size + 1;
- hdr = (struct hdr *) mmalloc (md, nbytes);
- mdp -> mmalloc_hook = mmalloc_check;
- if (hdr != NULL)
- {
- hdr -> size = size;
- hdr -> magic = MAGICWORD;
- hdr++;
- *((char *) hdr + size) = MAGICBYTE;
- }
- return ((PTR) hdr);
-}
-
-static PTR
-mrealloc_check (md, ptr, size)
- PTR md;
- PTR ptr;
- size_t size;
-{
- struct hdr *hdr = ((struct hdr *) ptr) - 1;
- struct mdesc *mdp;
- size_t nbytes;
-
- mdp = MD_TO_MDP (md);
- checkhdr (mdp, hdr);
- mdp -> mfree_hook = NULL;
- mdp -> mmalloc_hook = NULL;
- mdp -> mrealloc_hook = NULL;
- nbytes = sizeof (struct hdr) + size + 1;
- hdr = (struct hdr *) mrealloc (md, (PTR) hdr, nbytes);
- mdp -> mfree_hook = mfree_check;
- mdp -> mmalloc_hook = mmalloc_check;
- mdp -> mrealloc_hook = mrealloc_check;
- if (hdr != NULL)
- {
- hdr -> size = size;
- hdr++;
- *((char *) hdr + size) = MAGICBYTE;
- }
- return ((PTR) hdr);
-}
-
-/* Turn on default checking for mmalloc/mrealloc/mfree, for the heap specified
- by MD. If FUNC is non-NULL, it is a pointer to the function to call
- to abort whenever memory corruption is detected. By default, this is the
- standard library function abort().
-
- Note that we disallow installation of initial checking hooks if mmalloc
- has been called at any time for this particular heap, since if any region
- that is allocated prior to installation of the hooks is subsequently
- reallocated or freed after installation of the hooks, it is guaranteed
- to trigger a memory corruption error. We do this by checking the state
- of the MMALLOC_INITIALIZED flag. If the FORCE argument is non-zero, this
- checking is disabled and it is allowed to install the checking hooks at any
- time. This is useful on systems where the C runtime makes one or more
- malloc calls before the user code had a chance to call mmcheck or mmcheckf,
- but never calls free with these values. Thus if we are certain that only
- values obtained from mallocs after an mmcheck/mmcheckf will ever be passed
- to free(), we can go ahead and force installation of the useful checking
- hooks.
-
- However, we can call this function at any time after the initial call,
- to update the function pointers to the checking routines and to the
- user defined corruption handler routine, as long as these function pointers
- have been previously extablished by the initial call. Note that we
- do this automatically when remapping a previously used heap, to ensure
- that the hooks get updated to the correct values, although the corruption
- handler pointer gets set back to the default. The application can then
- call mmcheck to use a different corruption handler if desired.
-
- Returns non-zero if checking is successfully enabled, zero otherwise. */
-
-int
-mmcheckf (md, func, force)
- PTR md;
- void (*func) PARAMS ((void));
- int force;
-{
- struct mdesc *mdp;
- int rtnval;
-
- mdp = MD_TO_MDP (md);
-
- /* We can safely set or update the abort function at any time, regardless
- of whether or not we successfully do anything else. */
-
- mdp -> abortfunc = (func != NULL ? func : abort);
-
- /* If we haven't yet called mmalloc the first time for this heap, or if we
- have hooks that were previously installed, then allow the hooks to be
- initialized or updated. */
-
- if (force ||
- !(mdp -> flags & MMALLOC_INITIALIZED) ||
- (mdp -> mfree_hook != NULL))
- {
- mdp -> mfree_hook = mfree_check;
- mdp -> mmalloc_hook = mmalloc_check;
- mdp -> mrealloc_hook = mrealloc_check;
- mdp -> flags |= MMALLOC_MMCHECK_USED;
- rtnval = 1;
- }
- else
- {
- rtnval = 0;
- }
-
- return (rtnval);
-}
-
-/* This routine is for backwards compatibility only, in case there are
- still callers to the original mmcheck function. */
-
-int
-mmcheck (md, func)
- PTR md;
- void (*func) PARAMS ((void));
-{
- int rtnval;
-
- rtnval = mmcheckf (md, func, 0);
- return (rtnval);
-}
+++ /dev/null
-/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
-
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
-
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
-
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-#include "mmprivate.h"
-
-PTR
-mmemalign (md, alignment, size)
- PTR md;
- size_t alignment;
- size_t size;
-{
- PTR result;
- unsigned long int adj;
- struct alignlist *l;
- struct mdesc *mdp;
-
- if ((result = mmalloc (md, size + alignment - 1)) != NULL)
- {
- adj = RESIDUAL (result, alignment);
- if (adj != 0)
- {
- mdp = MD_TO_MDP (md);
- for (l = mdp -> aligned_blocks; l != NULL; l = l -> next)
- {
- if (l -> aligned == NULL)
- {
- /* This slot is free. Use it. */
- break;
- }
- }
- if (l == NULL)
- {
- l = (struct alignlist *) mmalloc (md, sizeof (struct alignlist));
- if (l == NULL)
- {
- mfree (md, result);
- return (NULL);
- }
- l -> next = mdp -> aligned_blocks;
- mdp -> aligned_blocks = l;
- }
- l -> exact = result;
- result = l -> aligned = (char *) result + alignment - adj;
- }
- }
- return (result);
-}
+++ /dev/null
-/* Declarations for `mmalloc' and friends.
- Copyright 1990, 1991, 1992 Free Software Foundation
-
- Written May 1989 by Mike Haertel.
- Heavily modified Mar 1992 by Fred Fish. (fnf@cygnus.com)
-
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
-
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
-
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.
-
- The author may be reached (Email) at the address mike@ai.mit.edu,
- or (US mail) as Mike Haertel c/o Free Software Foundation. */
-
-
-#ifndef __MMPRIVATE_H
-#define __MMPRIVATE_H 1
-
-#include "mmalloc.h"
-
-#ifdef HAVE_LIMITS_H
-# include <limits.h>
-#else
-# ifndef CHAR_BIT
-# define CHAR_BIT 8
-# endif
-#endif
-
-#ifndef MIN
-# define MIN(A, B) ((A) < (B) ? (A) : (B))
-#endif
-
-#define MMALLOC_MAGIC "mmalloc" /* Mapped file magic number */
-#define MMALLOC_MAGIC_SIZE 8 /* Size of magic number buf */
-#define MMALLOC_VERSION 1 /* Current mmalloc version */
-#define MMALLOC_KEYS 16 /* Keys for application use */
-
-/* The allocator divides the heap into blocks of fixed size; large
- requests receive one or more whole blocks, and small requests
- receive a fragment of a block. Fragment sizes are powers of two,
- and all fragments of a block are the same size. When all the
- fragments in a block have been freed, the block itself is freed. */
-
-#define INT_BIT (CHAR_BIT * sizeof(int))
-#define BLOCKLOG (INT_BIT > 16 ? 12 : 9)
-#define BLOCKSIZE ((unsigned int) 1 << BLOCKLOG)
-#define BLOCKIFY(SIZE) (((SIZE) + BLOCKSIZE - 1) / BLOCKSIZE)
-
-/* The difference between two pointers is a signed int. On machines where
- the data addresses have the high bit set, we need to ensure that the
- difference becomes an unsigned int when we are using the address as an
- integral value. In addition, when using with the '%' operator, the
- sign of the result is machine dependent for negative values, so force
- it to be treated as an unsigned int. */
-
-#define ADDR2UINT(addr) ((unsigned int) ((char *) (addr) - (char *) NULL))
-#define RESIDUAL(addr,bsize) ((unsigned int) (ADDR2UINT (addr) % (bsize)))
-
-/* Determine the amount of memory spanned by the initial heap table
- (not an absolute limit). */
-
-#define HEAP (INT_BIT > 16 ? 4194304 : 65536)
-
-/* Number of contiguous free blocks allowed to build up at the end of
- memory before they will be returned to the system. */
-
-#define FINAL_FREE_BLOCKS 8
-
-/* Where to start searching the free list when looking for new memory.
- The two possible values are 0 and heapindex. Starting at 0 seems
- to reduce total memory usage, while starting at heapindex seems to
- run faster. */
-
-#define MALLOC_SEARCH_START mdp -> heapindex
-
-/* Address to block number and vice versa. */
-
-#define BLOCK(A) (((char *) (A) - mdp -> heapbase) / BLOCKSIZE + 1)
-
-#define ADDRESS(B) ((PTR) (((B) - 1) * BLOCKSIZE + mdp -> heapbase))
-
-/* Data structure giving per-block information. */
-
-typedef union
- {
- /* Heap information for a busy block. */
- struct
- {
- /* Zero for a large block, or positive giving the
- logarithm to the base two of the fragment size. */
- int type;
- union
- {
- struct
- {
- size_t nfree; /* Free fragments in a fragmented block. */
- size_t first; /* First free fragment of the block. */
- } frag;
- /* Size (in blocks) of a large cluster. */
- size_t size;
- } info;
- } busy;
- /* Heap information for a free block (that may be the first of
- a free cluster). */
- struct
- {
- size_t size; /* Size (in blocks) of a free cluster. */
- size_t next; /* Index of next free cluster. */
- size_t prev; /* Index of previous free cluster. */
- } free;
- } malloc_info;
-
-/* List of blocks allocated with `mmemalign' (or `mvalloc'). */
-
-struct alignlist
- {
- struct alignlist *next;
- PTR aligned; /* The address that mmemaligned returned. */
- PTR exact; /* The address that malloc returned. */
- };
-
-/* Doubly linked lists of free fragments. */
-
-struct list
- {
- struct list *next;
- struct list *prev;
- };
-
-/* Statistics available to the user.
- FIXME: By design, the internals of the malloc package are no longer
- exported to the user via an include file, so access to this data needs
- to be via some other mechanism, such as mmstat_<something> where the
- return value is the <something> the user is interested in. */
-
-struct mstats
- {
- size_t bytes_total; /* Total size of the heap. */
- size_t chunks_used; /* Chunks allocated by the user. */
- size_t bytes_used; /* Byte total of user-allocated chunks. */
- size_t chunks_free; /* Chunks in the free list. */
- size_t bytes_free; /* Byte total of chunks in the free list. */
- };
-
-/* Internal structure that defines the format of the malloc-descriptor.
- This gets written to the base address of the region that mmalloc is
- managing, and thus also becomes the file header for the mapped file,
- if such a file exists. */
-
-struct mdesc
-{
- /* The "magic number" for an mmalloc file. */
-
- char magic[MMALLOC_MAGIC_SIZE];
-
- /* The size in bytes of this structure, used as a sanity check when reusing
- a previously created mapped file. */
-
- unsigned int headersize;
-
- /* The version number of the mmalloc package that created this file. */
-
- unsigned char version;
-
- /* Some flag bits to keep track of various internal things. */
-
- unsigned int flags;
-
- /* If a system call made by the mmalloc package fails, the errno is
- preserved for future examination. */
-
- int saved_errno;
-
- /* Pointer to the function that is used to get more core, or return core
- to the system, for requests using this malloc descriptor. For memory
- mapped regions, this is the mmap() based routine. There may also be
- a single malloc descriptor that points to an sbrk() based routine
- for systems without mmap() or for applications that call the mmalloc()
- package with a NULL malloc descriptor.
-
- FIXME: For mapped regions shared by more than one process, this
- needs to be maintained on a per-process basis. */
-
- PTR (*morecore) PARAMS ((struct mdesc *, int));
-
- /* Pointer to the function that causes an abort when the memory checking
- features are activated. By default this is set to abort(), but can
- be set to another function by the application using mmalloc().
-
- FIXME: For mapped regions shared by more than one process, this
- needs to be maintained on a per-process basis. */
-
- void (*abortfunc) PARAMS ((void));
-
- /* Debugging hook for free.
-
- FIXME: For mapped regions shared by more than one process, this
- needs to be maintained on a per-process basis. */
-
- void (*mfree_hook) PARAMS ((PTR, PTR));
-
- /* Debugging hook for `malloc'.
-
- FIXME: For mapped regions shared by more than one process, this
- needs to be maintained on a per-process basis. */
-
- PTR (*mmalloc_hook) PARAMS ((PTR, size_t));
-
- /* Debugging hook for realloc.
-
- FIXME: For mapped regions shared by more than one process, this
- needs to be maintained on a per-process basis. */
-
- PTR (*mrealloc_hook) PARAMS ((PTR, PTR, size_t));
-
- /* Number of info entries. */
-
- size_t heapsize;
-
- /* Pointer to first block of the heap (base of the first block). */
-
- char *heapbase;
-
- /* Current search index for the heap table. */
- /* Search index in the info table. */
-
- size_t heapindex;
-
- /* Limit of valid info table indices. */
-
- size_t heaplimit;
-
- /* Block information table.
- Allocated with malign/__mmalloc_free (not mmalloc/mfree). */
- /* Table indexed by block number giving per-block information. */
-
- malloc_info *heapinfo;
-
- /* Instrumentation. */
-
- struct mstats heapstats;
-
- /* Free list headers for each fragment size. */
- /* Free lists for each fragment size. */
-
- struct list fraghead[BLOCKLOG];
-
- /* List of blocks allocated by memalign. */
-
- struct alignlist *aligned_blocks;
-
- /* The base address of the memory region for this malloc heap. This
- is the location where the bookkeeping data for mmap and for malloc
- begins. */
-
- char *base;
-
- /* The current location in the memory region for this malloc heap which
- represents the end of memory in use. */
-
- char *breakval;
-
- /* The end of the current memory region for this malloc heap. This is
- the first location past the end of mapped memory. */
-
- char *top;
-
- /* Open file descriptor for the file to which this malloc heap is mapped.
- This will always be a valid file descriptor, since /dev/zero is used
- by default if no open file is supplied by the client. Also note that
- it may change each time the region is mapped and unmapped. */
-
- int fd;
-
- /* An array of keys to data within the mapped region, for use by the
- application. */
-
- PTR keys[MMALLOC_KEYS];
-
-};
-
-/* Bits to look at in the malloc descriptor flags word */
-
-#define MMALLOC_DEVZERO (1 << 0) /* Have mapped to /dev/zero */
-#define MMALLOC_INITIALIZED (1 << 1) /* Initialized mmalloc */
-#define MMALLOC_MMCHECK_USED (1 << 2) /* mmcheckf() called already */
-
-/* Internal version of `mfree' used in `morecore'. */
-
-extern void __mmalloc_free PARAMS ((struct mdesc *, PTR));
-
-/* Hooks for debugging versions. */
-
-extern void (*__mfree_hook) PARAMS ((PTR, PTR));
-extern PTR (*__mmalloc_hook) PARAMS ((PTR, size_t));
-extern PTR (*__mrealloc_hook) PARAMS ((PTR, PTR, size_t));
-
-/* A default malloc descriptor for the single sbrk() managed region. */
-
-extern struct mdesc *__mmalloc_default_mdp;
-
-/* Initialize the first use of the default malloc descriptor, which uses
- an sbrk() region. */
-
-extern struct mdesc *__mmalloc_sbrk_init PARAMS ((void));
-
-/* Grow or shrink a contiguous mapped region using mmap().
- Works much like sbrk() */
-
-#if defined(HAVE_MMAP)
-
-extern PTR __mmalloc_mmap_morecore PARAMS ((struct mdesc *, int));
-
-#endif
-
-/* Remap a mmalloc region that was previously mapped. */
-
-extern PTR __mmalloc_remap_core PARAMS ((struct mdesc *));
-
-/* Macro to convert from a user supplied malloc descriptor to pointer to the
- internal malloc descriptor. If the user supplied descriptor is NULL, then
- use the default internal version, initializing it if necessary. Otherwise
- just cast the user supplied version (which is void *) to the proper type
- (struct mdesc *). */
-
-#define MD_TO_MDP(md) \
- ((md) == NULL \
- ? (__mmalloc_default_mdp == NULL \
- ? __mmalloc_sbrk_init () \
- : __mmalloc_default_mdp) \
- : (struct mdesc *) (md))
-
-#endif /* __MMPRIVATE_H */
+++ /dev/null
-/* Access the statistics maintained by `mmalloc'.
- Copyright 1990, 1991, 1992 Free Software Foundation
-
- Written May 1989 by Mike Haertel.
- Modified Mar 1992 by Fred Fish. (fnf@cygnus.com)
-
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
-
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
-
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.
-
- The author may be reached (Email) at the address mike@ai.mit.edu,
- or (US mail) as Mike Haertel c/o Free Software Foundation. */
-
-#include "mmprivate.h"
-
-/* FIXME: See the comment in mmprivate.h where struct mstats is defined.
- None of the internal mmalloc structures should be externally visible
- outside the library. */
-
-struct mstats
-mmstats (md)
- PTR md;
-{
- struct mstats result;
- struct mdesc *mdp;
-
- mdp = MD_TO_MDP (md);
- result.bytes_total =
- (char *) mdp -> morecore (mdp, 0) - mdp -> heapbase;
- result.chunks_used = mdp -> heapstats.chunks_used;
- result.bytes_used = mdp -> heapstats.bytes_used;
- result.chunks_free = mdp -> heapstats.chunks_free;
- result.bytes_free = mdp -> heapstats.bytes_free;
- return (result);
-}
+++ /dev/null
-#
-# Awk program to analyze mtrace.c output.
-#
-$1 == "+" { if (allocated[$2] != "")
- print "+", $2, "Alloc", NR, "duplicate:", allocated[$2];
- else
- allocated[$2] = $3;
- }
-$1 == "-" { if (allocated[$2] != "") {
- allocated[$2] = "";
- if (allocated[$2] != "")
- print "DELETE FAILED", $2, allocated[$2];
- } else
- print "-", $2, "Free", NR, "was never alloc'd";
- }
-$1 == "<" { if (allocated[$2] != "")
- allocated[$2] = "";
- else
- print "-", $2, "Realloc", NR, "was never alloc'd";
- }
-$1 == ">" { if (allocated[$2] != "")
- print "+", $2, "Realloc", NR, "duplicate:", allocated[$2];
- else
- allocated[$2] = $3;
- }
-
-# Ignore "= Start"
-$1 == "=" { }
-# Ignore failed realloc attempts for now
-$1 == "!" { }
-
-
-END { for (x in allocated)
- if (allocated[x] != "")
- print "+", x, allocated[x];
- }
+++ /dev/null
-/* More debugging hooks for `mmalloc'.
- Copyright 1991, 1992, 1994 Free Software Foundation
-
- Written April 2, 1991 by John Gilmore of Cygnus Support
- Based on mcheck.c by Mike Haertel.
- Modified Mar 1992 by Fred Fish. (fnf@cygnus.com)
-
-This file is part of the GNU C Library.
-
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
-
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
-
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-#include <stdio.h>
-#include "mmprivate.h"
-
-static void tr_break PARAMS ((void));
-static void tr_freehook PARAMS ((PTR, PTR));
-static PTR tr_mallochook PARAMS ((PTR, size_t));
-static PTR tr_reallochook PARAMS ((PTR, PTR, size_t));
-
-#ifndef __GNU_LIBRARY__
-extern char *getenv ();
-#endif
-
-static FILE *mallstream;
-
-#if 0 /* FIXME: Disabled for now. */
-static char mallenv[] = "MALLOC_TRACE";
-static char mallbuf[BUFSIZ]; /* Buffer for the output. */
-#endif
-
-/* Address to breakpoint on accesses to... */
-static PTR mallwatch;
-
-/* Old hook values. */
-
-static void (*old_mfree_hook) PARAMS ((PTR, PTR));
-static PTR (*old_mmalloc_hook) PARAMS ((PTR, size_t));
-static PTR (*old_mrealloc_hook) PARAMS ((PTR, PTR, size_t));
-
-/* This function is called when the block being alloc'd, realloc'd, or
- freed has an address matching the variable "mallwatch". In a debugger,
- set "mallwatch" to the address of interest, then put a breakpoint on
- tr_break. */
-
-static void
-tr_break ()
-{
-}
-
-static void
-tr_freehook (md, ptr)
- PTR md;
- PTR ptr;
-{
- struct mdesc *mdp;
-
- mdp = MD_TO_MDP (md);
- /* Be sure to print it first. */
- fprintf (mallstream, "- %08lx\n", (unsigned long) ptr);
- if (ptr == mallwatch)
- tr_break ();
- mdp -> mfree_hook = old_mfree_hook;
- mfree (md, ptr);
- mdp -> mfree_hook = tr_freehook;
-}
-
-static PTR
-tr_mallochook (md, size)
- PTR md;
- size_t size;
-{
- PTR hdr;
- struct mdesc *mdp;
-
- mdp = MD_TO_MDP (md);
- mdp -> mmalloc_hook = old_mmalloc_hook;
- hdr = (PTR) mmalloc (md, size);
- mdp -> mmalloc_hook = tr_mallochook;
-
- /* We could be printing a NULL here; that's OK. */
- fprintf (mallstream, "+ %08lx %x\n", (unsigned long) hdr, size);
-
- if (hdr == mallwatch)
- tr_break ();
-
- return (hdr);
-}
-
-static PTR
-tr_reallochook (md, ptr, size)
- PTR md;
- PTR ptr;
- size_t size;
-{
- PTR hdr;
- struct mdesc *mdp;
-
- mdp = MD_TO_MDP (md);
-
- if (ptr == mallwatch)
- tr_break ();
-
- mdp -> mfree_hook = old_mfree_hook;
- mdp -> mmalloc_hook = old_mmalloc_hook;
- mdp -> mrealloc_hook = old_mrealloc_hook;
- hdr = (PTR) mrealloc (md, ptr, size);
- mdp -> mfree_hook = tr_freehook;
- mdp -> mmalloc_hook = tr_mallochook;
- mdp -> mrealloc_hook = tr_reallochook;
- if (hdr == NULL)
- /* Failed realloc. */
- fprintf (mallstream, "! %08lx %x\n", (unsigned long) ptr, size);
- else
- fprintf (mallstream, "< %08lx\n> %08lx %x\n", (unsigned long) ptr,
- (unsigned long) hdr, size);
-
- if (hdr == mallwatch)
- tr_break ();
-
- return hdr;
-}
-
-/* We enable tracing if either the environment variable MALLOC_TRACE
- is set, or if the variable mallwatch has been patched to an address
- that the debugging user wants us to stop on. When patching mallwatch,
- don't forget to set a breakpoint on tr_break! */
-
-int
-mmtrace ()
-{
-#if 0 /* FIXME! This is disabled for now until we figure out how to
- maintain a stack of hooks per heap, since we might have other
- hooks (such as set by mmcheck/mmcheckf) active also. */
- char *mallfile;
-
- mallfile = getenv (mallenv);
- if (mallfile != NULL || mallwatch != NULL)
- {
- mallstream = fopen (mallfile != NULL ? mallfile : "/dev/null", "w");
- if (mallstream != NULL)
- {
- /* Be sure it doesn't mmalloc its buffer! */
- setbuf (mallstream, mallbuf);
- fprintf (mallstream, "= Start\n");
- old_mfree_hook = mdp -> mfree_hook;
- mdp -> mfree_hook = tr_freehook;
- old_mmalloc_hook = mdp -> mmalloc_hook;
- mdp -> mmalloc_hook = tr_mallochook;
- old_mrealloc_hook = mdp -> mrealloc_hook;
- mdp -> mrealloc_hook = tr_reallochook;
- }
- }
-
-#endif /* 0 */
-
- return (1);
-}
-
+++ /dev/null
-/* Change the size of a block allocated by `mmalloc'.
- Copyright 1990, 1991 Free Software Foundation
- Written May 1989 by Mike Haertel.
-
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
-
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
-
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.
-
- The author may be reached (Email) at the address mike@ai.mit.edu,
- or (US mail) as Mike Haertel c/o Free Software Foundation. */
-
-#include <string.h> /* Prototypes for memcpy, memmove, memset, etc */
-
-#include "mmprivate.h"
-
-/* Resize the given region to the new size, returning a pointer
- to the (possibly moved) region. This is optimized for speed;
- some benchmarks seem to indicate that greater compactness is
- achieved by unconditionally allocating and copying to a
- new region. This module has incestuous knowledge of the
- internals of both mfree and mmalloc. */
-
-PTR
-mrealloc (md, ptr, size)
- PTR md;
- PTR ptr;
- size_t size;
-{
- struct mdesc *mdp;
- PTR result;
- int type;
- size_t block, blocks, oldlimit;
-
- if (size == 0)
- {
- mfree (md, ptr);
- return (mmalloc (md, 0));
- }
- else if (ptr == NULL)
- {
- return (mmalloc (md, size));
- }
-
- mdp = MD_TO_MDP (md);
-
- if (mdp -> mrealloc_hook != NULL)
- {
- return ((*mdp -> mrealloc_hook) (md, ptr, size));
- }
-
- block = BLOCK (ptr);
-
- type = mdp -> heapinfo[block].busy.type;
- switch (type)
- {
- case 0:
- /* Maybe reallocate a large block to a small fragment. */
- if (size <= BLOCKSIZE / 2)
- {
- result = mmalloc (md, size);
- if (result != NULL)
- {
- memcpy (result, ptr, size);
- mfree (md, ptr);
- return (result);
- }
- }
-
- /* The new size is a large allocation as well;
- see if we can hold it in place. */
- blocks = BLOCKIFY (size);
- if (blocks < mdp -> heapinfo[block].busy.info.size)
- {
- /* The new size is smaller; return excess memory to the free list. */
- mdp -> heapinfo[block + blocks].busy.type = 0;
- mdp -> heapinfo[block + blocks].busy.info.size
- = mdp -> heapinfo[block].busy.info.size - blocks;
- mdp -> heapinfo[block].busy.info.size = blocks;
- mfree (md, ADDRESS (block + blocks));
- result = ptr;
- }
- else if (blocks == mdp -> heapinfo[block].busy.info.size)
- {
- /* No size change necessary. */
- result = ptr;
- }
- else
- {
- /* Won't fit, so allocate a new region that will.
- Free the old region first in case there is sufficient
- adjacent free space to grow without moving. */
- blocks = mdp -> heapinfo[block].busy.info.size;
- /* Prevent free from actually returning memory to the system. */
- oldlimit = mdp -> heaplimit;
- mdp -> heaplimit = 0;
- mfree (md, ptr);
- mdp -> heaplimit = oldlimit;
- result = mmalloc (md, size);
- if (result == NULL)
- {
- mmalloc (md, blocks * BLOCKSIZE);
- return (NULL);
- }
- if (ptr != result)
- {
- memmove (result, ptr, blocks * BLOCKSIZE);
- }
- }
- break;
-
- default:
- /* Old size is a fragment; type is logarithm
- to base two of the fragment size. */
- if (size > (size_t) (1 << (type - 1)) && size <= (size_t) (1 << type))
- {
- /* The new size is the same kind of fragment. */
- result = ptr;
- }
- else
- {
- /* The new size is different; allocate a new space,
- and copy the lesser of the new size and the old. */
- result = mmalloc (md, size);
- if (result == NULL)
- {
- return (NULL);
- }
- memcpy (result, ptr, MIN (size, (size_t) 1 << type));
- mfree (md, ptr);
- }
- break;
- }
-
- return (result);
-}
-
-/* When using this package, provide a version of malloc/realloc/free built
- on top of it, so that if we use the default sbrk() region we will not
- collide with another malloc package trying to do the same thing, if
- the application contains any "hidden" calls to malloc/realloc/free (such
- as inside a system library). */
-
-PTR
-realloc (ptr, size)
- PTR ptr;
- size_t size;
-{
- PTR result;
-
- result = mrealloc ((PTR) NULL, ptr, size);
- return (result);
-}
+++ /dev/null
-/* Allocate memory on a page boundary.
- Copyright (C) 1991 Free Software Foundation, Inc.
-
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
-
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
-
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-#include "mmprivate.h"
-
-/* Cache the pagesize for the current host machine. Note that if the host
- does not readily provide a getpagesize() function, we need to emulate it
- elsewhere, not clutter up this file with lots of kluges to try to figure
- it out. */
-
-static size_t cache_pagesize;
-#if NEED_DECLARATION_GETPAGESIZE
-extern int getpagesize PARAMS ((void));
-#endif
-
-PTR
-mvalloc (md, size)
- PTR md;
- size_t size;
-{
- if (cache_pagesize == 0)
- {
- cache_pagesize = getpagesize ();
- }
-
- return (mmemalign (md, cache_pagesize, size));
-}
-
-
-PTR
-valloc (size)
- size_t size;
-{
- return mvalloc ((PTR) NULL, size);
-}
+++ /dev/null
-/* Support for sbrk() regions.
- Copyright 1992, 2000 Free Software Foundation, Inc.
- Contributed by Fred Fish at Cygnus Support. fnf@cygnus.com
-
-This file is part of the GNU C Library.
-
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
-
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
-
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-#ifdef HAVE_UNISTD_H
-#include <unistd.h> /* Prototypes for sbrk (maybe) */
-#endif
-#include <string.h> /* Prototypes for memcpy, memmove, memset, etc */
-
-#include "mmprivate.h"
-
-static PTR sbrk_morecore PARAMS ((struct mdesc *, int));
-#if NEED_DECLARATION_SBRK
-extern PTR sbrk PARAMS ((int));
-#endif
-
-/* The mmalloc() package can use a single implicit malloc descriptor
- for mmalloc/mrealloc/mfree operations which do not supply an explicit
- descriptor. For these operations, sbrk() is used to obtain more core
- from the system, or return core. This allows mmalloc() to provide
- backwards compatibility with the non-mmap'd version. */
-
-struct mdesc *__mmalloc_default_mdp;
-
-/* Use sbrk() to get more core. */
-
-static PTR
-sbrk_morecore (mdp, size)
- struct mdesc *mdp;
- int size;
-{
- PTR result;
-
- if ((result = sbrk (size)) == (PTR) -1)
- {
- result = NULL;
- }
- else
- {
- mdp -> breakval += size;
- mdp -> top += size;
- }
- return (result);
-}
-
-/* Initialize the default malloc descriptor if this is the first time
- a request has been made to use the default sbrk'd region.
-
- Since no alignment guarantees are made about the initial value returned
- by sbrk, test the initial value and (if necessary) sbrk enough additional
- memory to start off with alignment to BLOCKSIZE. We actually only need
- it aligned to an alignment suitable for any object, so this is overkill.
- But at most it wastes just part of one BLOCKSIZE chunk of memory and
- minimizes portability problems by avoiding us having to figure out
- what the actual minimal alignment is. The rest of the malloc code
- avoids this as well, by always aligning to the minimum of the requested
- size rounded up to a power of two, or to BLOCKSIZE.
-
- Note that we are going to use some memory starting at this initial sbrk
- address for the sbrk region malloc descriptor, which is a struct, so the
- base address must be suitably aligned. */
-
-struct mdesc *
-__mmalloc_sbrk_init ()
-{
- PTR base;
- unsigned int adj;
-
- base = sbrk (0);
- adj = RESIDUAL (base, BLOCKSIZE);
- if (adj != 0)
- {
- sbrk (BLOCKSIZE - adj);
- base = sbrk (0);
- }
- __mmalloc_default_mdp = (struct mdesc *) sbrk (sizeof (struct mdesc));
- memset ((char *) __mmalloc_default_mdp, 0, sizeof (struct mdesc));
- __mmalloc_default_mdp -> morecore = sbrk_morecore;
- __mmalloc_default_mdp -> base = base;
- __mmalloc_default_mdp -> breakval = __mmalloc_default_mdp -> top = sbrk (0);
- __mmalloc_default_mdp -> fd = -1;
- return (__mmalloc_default_mdp);
-}
-
-
projects / binutils-gdb.git / commitdiff