From c93a17b7aba525ca857d7955d2a22dfafaf1c8b1 Mon Sep 17 00:00:00 2001 From: Jason Molenda Date: Sun, 5 Nov 1995 03:12:15 +0000 Subject: [PATCH] * 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__. This change is necessary to build under AIX 3.2.5 w/ cc after Stan's Oct 24 change. I'm not convinced that changing mmalloc.h in this way is such a good thing--if a directory that doesn't use autoconf (or one that DOES use autoconf but doesn't put all the defines on the command line), and it includes mmalloc.h, the right thing won't happen. I believe gdb is the only directory which uses mmalloc, though, so it should be OK. --- mmalloc/ChangeLog | 8 + mmalloc/configure | 1039 ++++++++++++++++++++++++++++++++++++++++++ mmalloc/configure.in | 40 +- mmalloc/mmalloc.h | 350 +------------- mmalloc/mmprivate.h | 2 +- 5 files changed, 1070 insertions(+), 369 deletions(-) create mode 100755 mmalloc/configure diff --git a/mmalloc/ChangeLog b/mmalloc/ChangeLog index 27a0382d594..06c9c5565b7 100644 --- a/mmalloc/ChangeLog +++ b/mmalloc/ChangeLog @@ -1,3 +1,11 @@ +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 * mmprivate.h: Remove declarations (PTR, etc) that are already diff --git a/mmalloc/configure b/mmalloc/configure new file mode 100755 index 00000000000..8e020202364 --- /dev/null +++ b/mmalloc/configure @@ -0,0 +1,1039 @@ +#! /bin/sh + +# Guess values for system-dependent variables and create Makefiles. +# Generated automatically using autoconf version 2.4 +# Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc. +# +# This configure script is free software; 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ac_save_ifs="$IFS"; IFS="${IFS}:" + for ac_dir in $PATH; do + test -z "$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 + + +# If we cannot run a trivial program, we must be cross compiling. +echo $ac_n "checking whether cross-compiling""... $ac_c" 1>&6 +if eval "test \"`echo '$''{'ac_cv_c_cross'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + if test "$cross_compiling" = yes; then + ac_cv_c_cross=yes +else +cat > conftest.$ac_ext </dev/null; then + ac_cv_c_cross=no +else + ac_cv_c_cross=yes +fi +fi +rm -fr conftest* +fi +cross_compiling=$ac_cv_c_cross +echo "$ac_t""$ac_cv_c_cross" 1>&6 + +echo $ac_n "checking for working mmap""... $ac_c" 1>&6 +if eval "test \"`echo '$''{'ac_cv_func_mmap'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + if test "$cross_compiling" = yes; then + ac_cv_func_mmap=no +else +cat > conftest.$ac_ext < +#include +#include + +#ifdef BSD +# ifndef BSD4_1 +# define HAVE_GETPAGESIZE +# endif +#endif + +#ifndef HAVE_GETPAGESIZE +# include +# ifdef EXEC_PAGESIZE +# define getpagesize() EXEC_PAGESIZE +# else +# ifdef NBPG +# define getpagesize() NBPG * CLSIZE +# ifndef CLSIZE +# define CLSIZE 1 +# endif +# else +# ifdef NBPC +# define getpagesize() NBPC +# else +# define getpagesize() PAGESIZE /* SVR4 */ +# endif +# endif +# endif +#endif + +#ifdef __osf__ +# define valloc malloc +#endif + +#ifdef __cplusplus +extern "C" { void *valloc(unsigned), *malloc(unsigned); } +#else +char *valloc(), *malloc(); +#endif + +int +main() +{ + char *buf1, *buf2, *buf3; + int i = getpagesize(), j; + int i2 = getpagesize()*2; + int fd; + + buf1 = (char *)valloc(i2); + buf2 = (char *)valloc(i); + buf3 = (char *)malloc(i2); + for (j = 0; j < i2; ++j) + *(buf1 + j) = rand(); + fd = open("conftestmmap", O_CREAT | O_RDWR, 0666); + write(fd, buf1, i2); + mmap(buf2, i, PROT_READ | PROT_WRITE, MAP_FIXED | MAP_PRIVATE, fd, 0); + for (j = 0; j < i; ++j) + if (*(buf1 + j) != *(buf2 + j)) + exit(1); + lseek(fd, (long)i, 0); + read(fd, buf2, i); /* read into mapped memory -- file should not change */ + /* (it does in i386 SVR4.0 - Jim Avera, jima@netcom.com) */ + lseek(fd, (long)0, 0); + read(fd, buf3, i2); + for (j = 0; j < i2; ++j) + if (*(buf1 + j) != *(buf3 + j)) + exit(1); + exit(0); +} + +EOF +eval $ac_link +if test -s conftest && (./conftest; exit) 2>/dev/null; then + ac_cv_func_mmap=yes +else + ac_cv_func_mmap=no +fi +fi +rm -fr conftest* +fi +echo "$ac_t""$ac_cv_func_mmap" 1>&6 +if test $ac_cv_func_mmap = yes; then + cat >> confdefs.h <<\EOF +#define HAVE_MMAP 1 +EOF + +fi + +echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6 +# 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 < +Syntax Error +EOF +eval "$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out" +ac_err=`grep -v '^ *+' conftest.out` +if test -z "$ac_err"; then + : +else + echo "$ac_err" >&5 + rm -rf conftest* + CPP="${CC-cc} -E -traditional-cpp" + cat > conftest.$ac_ext < +Syntax Error +EOF +eval "$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out" +ac_err=`grep -v '^ *+' conftest.out` +if test -z "$ac_err"; then + : +else + echo "$ac_err" >&5 + rm -rf conftest* + CPP=/lib/cpp +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 + +echo $ac_n "checking for ANSI C header files""... $ac_c" 1>&6 +if eval "test \"`echo '$''{'ac_cv_header_stdc'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + cat > conftest.$ac_ext < +#include +#include +#include +EOF +eval "$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out" +ac_err=`grep -v '^ *+' conftest.out` +if test -z "$ac_err"; then + rm -rf conftest* + ac_cv_header_stdc=yes +else + echo "$ac_err" >&5 + rm -rf conftest* + ac_cv_header_stdc=no +fi +rm -f conftest* + +if test $ac_cv_header_stdc = yes; then + # SunOS 4.x string.h does not declare mem*, contrary to ANSI. +cat > conftest.$ac_ext < +EOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + egrep "memchr" >/dev/null 2>&1; then + : +else + rm -rf conftest* + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. +cat > conftest.$ac_ext < +EOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + egrep "free" >/dev/null 2>&1; then + : +else + rm -rf conftest* + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. +if test "$cross_compiling" = yes; then + ac_cv_header_stdc=no +else +cat > conftest.$ac_ext < +#define ISLOWER(c) ('a' <= (c) && (c) <= 'z') +#define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) +#define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) +int main () { int i; for (i = 0; i < 256; i++) +if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2); +exit (0); } + +EOF +eval $ac_link +if test -s conftest && (./conftest; exit) 2>/dev/null; then + : +else + ac_cv_header_stdc=no +fi +fi +rm -fr conftest* +fi +fi +echo "$ac_t""$ac_cv_header_stdc" 1>&6 +if test $ac_cv_header_stdc = yes; then + cat >> confdefs.h <<\EOF +#define STDC_HEADERS 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 +# 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 | + sed -n "s/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=\${\1='\2'}/p" \ + >> 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 </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 2.4" + 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 + +# 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 +$extrasub +s%@CFLAGS@%$CFLAGS%g +s%@CPPFLAGS@%$CPPFLAGS%g +s%@CXXFLAGS@%$CXXFLAGS%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%@CC@%$CC%g +s%@INSTALL_PROGRAM@%$INSTALL_PROGRAM%g +s%@INSTALL_DATA@%$INSTALL_DATA%g +s%@RANLIB@%$RANLIB%g +s%@CPP@%$CPP%g + +CEOF +EOF +cat >> $CONFIG_STATUS <> $CONFIG_STATUS <<\EOF +for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then + # Support "outfile[: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 relative srcdir, etc. 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\\ +# $configure_input" ;; + *) ac_comsub= ;; + esac + sed -e "$ac_comsub +s%@configure_input@%$configure_input%g +s%@srcdir@%$srcdir%g +s%@top_srcdir@%$top_srcdir%g +s%@INSTALL@%$INSTALL%g +" -f conftest.subs $ac_given_srcdir/$ac_file_in > $ac_file +fi; done +rm -f conftest.subs + + + +exit 0 +EOF +chmod +x $CONFIG_STATUS +rm -fr confdefs* $ac_clean_files +test "$no_create" = yes || ${CONFIG_SHELL-/bin/sh} $CONFIG_STATUS || exit 1 + diff --git a/mmalloc/configure.in b/mmalloc/configure.in index ebf6088e630..e7b9a4b85ae 100644 --- a/mmalloc/configure.in +++ b/mmalloc/configure.in @@ -1,33 +1,13 @@ -# This file is a shell script that supplies the information necessary -# to tailor a template configure script into the configure script -# appropriate for this directory. For more information, check any -# existing configure script. +dnl Process this file with autoconf to produce a configure script. +AC_PREREQ(2.3)dnl +AC_INIT(mmalloc.c) -srctrigger=mmalloc.c -srcname="mmalloc library" -configdirs="" +CC=${CC-cc} +AC_PROG_CC +AC_PROG_INSTALL +AC_PROG_RANLIB -# per-host: +AC_FUNC_MMAP +AC_HEADER_STDC -case "${host}" in - mips-sgi-irix4) - host_makefile_frag=config/mh-irix4 - ;; - *-sun-sunos4*) - host_makefile_frag=config/mh-sunos4 - ;; - i[34]86-ncr-sysv4*) - host_makefile_frag=config/mh-ncr3000 - ;; - *-*-sysv4*) - host_makefile_frag=config/mh-sysv4 - ;; -esac - -# per-target: - -# -# Local Variables: -# fill-column: 131 -# End: -# +AC_OUTPUT(Makefile) diff --git a/mmalloc/mmalloc.h b/mmalloc/mmalloc.h index 030cdc2bfd8..a4a6dd8be6d 100644 --- a/mmalloc/mmalloc.h +++ b/mmalloc/mmalloc.h @@ -1,299 +1,12 @@ -/* Declarations for `mmalloc' and friends. - Copyright 1990, 1991, 1992 Free Software Foundation +#ifndef MMALLOC_H +#define MMALLOC_H 1 - 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., 675 Mass Ave, -Cambridge, MA 02139, 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 __MMALLOC_H -#define __MMALLOC_H 1 - -#ifdef __STDC__ -# include -# define PTR void * -# define CONST const -# define PARAMS(paramlist) paramlist -# include -# ifndef NULL -# define NULL (void *) 0 -# endif -#else -# define PTR char * -# define CONST /* nothing */ -# define PARAMS(paramlist) () -# ifndef size_t -# define size_t unsigned int -# endif -# ifndef CHAR_BIT -# define CHAR_BIT 8 -# endif -# ifndef NULL -# define NULL 0 -# endif -#endif - -#ifndef MIN -# define MIN(A, B) ((A) < (B) ? (A) : (B)) +#ifdef STDC_HEADERS +#include #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_ where the - return value is the 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 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. */ - - PTR (*morecore) PARAMS ((struct mdesc *, ptrdiff_t)); - - /* 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(). */ - - void (*abortfunc) PARAMS ((void)); - - /* Debugging hook for free. */ - - void (*mfree_hook) PARAMS ((PTR, PTR)); - - /* Debugging hook for `malloc'. */ - - PTR (*mmalloc_hook) PARAMS ((PTR, size_t)); - - /* Debugging hook for realloc. */ - - 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. */ - - void *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) /* mmcheck() called already */ - +#include "ansidecl.h" + /* Allocate SIZE bytes of memory. */ extern PTR mmalloc PARAMS ((PTR, size_t)); @@ -327,53 +40,14 @@ extern int mmcheck PARAMS ((PTR, void (*) (void))); extern struct mstats mmstats PARAMS ((PTR)); -/* 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 region using sbrk(). */ - -extern PTR __mmalloc_sbrk_morecore PARAMS ((struct mdesc *, int)); - -/* 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 +extern PTR mmalloc_attach PARAMS ((int, PTR)); -/* Remap a mmalloc region that was previously mapped. */ +extern PTR mmalloc_detach PARAMS ((PTR)); -extern PTR __mmalloc_remap_core PARAMS ((struct mdesc *)); +extern int mmalloc_setkey PARAMS ((PTR, int, PTR)); -/* 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 *). */ +extern PTR mmalloc_getkey PARAMS ((PTR, int)); -#define MD_TO_MDP(md) \ - ((md) == NULL \ - ? (__mmalloc_default_mdp == NULL \ - ? __mmalloc_sbrk_init () \ - : __mmalloc_default_mdp) \ - : (struct mdesc *) (md)) +extern int mmalloc_errno PARAMS ((PTR)); -#endif /* __MMALLOC_H */ +#endif /* MMALLOC_H */ diff --git a/mmalloc/mmprivate.h b/mmalloc/mmprivate.h index f5e7555b031..30a5d26783f 100644 --- a/mmalloc/mmprivate.h +++ b/mmalloc/mmprivate.h @@ -28,7 +28,7 @@ Boston, MA 02111-1307, USA. #include "mmalloc.h" -#ifdef __STDC__ +#ifdef STDC_HEADERS # include # ifndef NULL # define NULL (void *) 0 -- 2.30.2