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-rwxr-xr-xlib/libmalloc/tests/munge.sh40
-rwxr-xr-xlib/libmalloc/tests/plot.sh81
-rwxr-xr-xlib/libmalloc/tests/regress11
-rw-r--r--lib/libmalloc/tests/simumalloc.c239
-rw-r--r--lib/libmalloc/tests/t1.c40
-rw-r--r--lib/libmalloc/tests/t2.c37
-rw-r--r--lib/libmalloc/tests/t3.c110
-rw-r--r--lib/libmalloc/tests/t4.c20
-rw-r--r--lib/libmalloc/tests/t5.c31
-rw-r--r--lib/libmalloc/tests/test.out415
-rw-r--r--lib/libmalloc/tests/testmalloc.c182
-rw-r--r--lib/libmalloc/tests/testmemalign.c16
-rwxr-xr-xlib/libmalloc/tests/testrun.sh28
-rw-r--r--lib/libmalloc/tests/testsbrk.c22
-rw-r--r--lib/libmalloc/tests/teststomp.c34
15 files changed, 1306 insertions, 0 deletions
diff --git a/lib/libmalloc/tests/munge.sh b/lib/libmalloc/tests/munge.sh
new file mode 100755
index 000000000000..d9a23309c11c
--- /dev/null
+++ b/lib/libmalloc/tests/munge.sh
@@ -0,0 +1,40 @@
+#! /bin/sh
+# takes output of testrun and massages into columnar form for easier
+# evaluation and graphing
+cat $* | tr ',' ' ' |
+ awk 'BEGIN {
+ printf " Maxtime Maxsize Maxlife Sbrked Alloced Wastage";
+ printf " Real User Sys\n";
+ }
+ $1 == "Maxtime" {
+ if (t != 0) {
+ printf "%8d%8d%8d%8d%8d %7.2f", t, s, l, sb, ma, w;
+ printf " %7.1f %7.1f %7.1f\n", mr, mu, ms;
+ }
+ t = $3;
+ s = $6;
+ l = $9;
+ mr = 100000;
+ mu = 100000;
+ ms = 100000;
+ next;
+ }
+ $1 == "Sbrked" {
+ sb = $2;
+ ma = $4;
+ w = $6;
+ next;
+ }
+ $2 == "real" {
+ if ($1 < mr) mr = $1;
+ if ($3 < mu) mu = $3;
+ if ($5 < ms) ms = $5;
+ next;
+ }
+ END {
+ if (t != 0) {
+ printf "%8d%8d%8d%8d%8d %7.2f", t, s, l, sb, ma, w;
+ printf " %7.1f %7.1f %7.1f\n", mr, mu, ms;
+ }
+ }
+ '
diff --git a/lib/libmalloc/tests/plot.sh b/lib/libmalloc/tests/plot.sh
new file mode 100755
index 000000000000..74a8c8edd52e
--- /dev/null
+++ b/lib/libmalloc/tests/plot.sh
@@ -0,0 +1,81 @@
+#! /bin/sh
+# Things like
+# '-s 10 file...' should plot Maxlife vs Wastage, Real, user + sys for all
+# file for Maxsize == 10.
+# '-l 10 file...' should plot Maxsize vs ... for Maxlife == 10.
+usage="Usage: $0 [-s size | -l life] file..."
+case $# in
+[012])
+ echo $usage >&2
+ exit 1
+ ;;
+esac
+tmp=./tmp.$$
+case $1 in
+-s)
+ const='Maxsize'
+ indep='Maxlife'
+ units='iterations'
+ ;;
+-l)
+ const='Maxlife'
+ indep='Maxsize'
+ units='words'
+ ;;
+*)
+ echo $usage >&2
+ exit 1
+ ;;
+esac
+constval=$2
+shift
+shift
+mkdir $tmp
+for i
+do
+ base=`basename $i`
+ echo $base
+ ext=`expr "$base" : "res\.\(.*\)"`
+ awk '$1 == "Maxtime" {
+ for(i = 1; i <= NF; i++) {
+ field[$i] = i;
+ }
+ f1="'$tmp/W.$base'";
+ f2="'$tmp/R.$base'";
+ f3="'$tmp/US.$base'";
+ print "\"" "'$ext'" > f1
+ print "\"" "'$ext'" > f2
+ print "\"" "'$ext'" > f3
+ cfld=field["'$const'"];
+ cval='$constval';
+ xfld=field["'$indep'"];
+ y1=field["Wastage"];
+ y2=field["Real"];
+ y3=field["User"];
+ y4=field["Sys"];
+ }
+ $cfld == cval {
+ print $xfld, $y1 * 100 >> f1;
+ print $xfld, $y2 >> f2;
+ print $xfld, $y3 + $y4 >> f3;
+ }
+ END {
+ print "" >> f1;
+ print "" >> f2;
+ print "" >> f3;
+ }' $i
+done
+cat $tmp/W.* > $tmp/W
+rm -f $tmp/W.*
+cat $tmp/R.* > $tmp/R
+rm -f $tmp/R.*
+cat $tmp/US.* > $tmp/US
+rm -f $tmp/US.*
+cd $tmp
+xgraph -tk -bb -t "$const = $constval" -x "$indep ($units)" \
+ -y 'User + System time (seconds)' US &
+xgraph -tk -bb -t "$const = $constval" -x "$indep ($units)" \
+ -y 'Elapsed time (seconds)' R &
+xgraph -tk -bb -t "$const = $constval" -x "$indep ($units)" \
+ -y 'Wastage (percent of data segment)' W &
+
diff --git a/lib/libmalloc/tests/regress b/lib/libmalloc/tests/regress
new file mode 100755
index 000000000000..322aa608c196
--- /dev/null
+++ b/lib/libmalloc/tests/regress
@@ -0,0 +1,11 @@
+#! /bin/sh -x
+# testmalloc tests some unusual cases -- will test all branches in free,
+# which is important.
+./testmalloc $@
+# simumalloc makes a good thorough exercise for malloc and free.
+# need something for realloc, though.
+./simumalloc -t 15000 -s 1024 -l 2000 $@
+./simumalloc -t 5000 -s 512 -l 20 $@
+./simumalloc -d -t 500 -s 512 -l 20 $@
+./simumalloc -d -t 500 -s 512 -l 500 $@
+./simumalloc -d -t 500 -s 512 -a $@
diff --git a/lib/libmalloc/tests/simumalloc.c b/lib/libmalloc/tests/simumalloc.c
new file mode 100644
index 000000000000..f4607db3e453
--- /dev/null
+++ b/lib/libmalloc/tests/simumalloc.c
@@ -0,0 +1,239 @@
+/*
+ * To measure the speed of malloc - based on the algorithm described in
+ * "In Search of a Better Malloc" by David G. Korn and Kiem-Phong Vo,
+ * Usenix 1985. This is a vicious test of memory allocation, but does
+ * suffer from the problem that it asks for a uniform distribution of
+ * sizes - a more accurate distribution is a multi-normal distribution
+ * for all applications I've seen.
+ */
+/* Mark Moraes, CSRI, University of Toronto */
+#ifndef lint
+static char rcsid[] = "$Id: simumalloc.c,v 1.1 1994/03/06 23:01:46 nate Exp $";
+#endif /*lint*/
+
+#include <stdio.h>
+#include <string.h>
+
+/*
+ * ANSI systems had better have this. Non-ANSI systems had better not
+ * complain about things that are implicitly declared int or void.
+ */
+#if defined(STDHEADERS)
+# include <stdlib.h>
+# include <unistd.h>
+#endif
+
+#include "malloc.h"
+
+char *progname;
+/* For getopt() */
+extern int getopt();
+extern int optind;
+extern char *optarg;
+
+
+int MaxTime, MaxLife, MaxSize, NumAllocs;
+
+typedef union u {
+ union u *ptr;
+ int size;
+} word;
+
+#define MAXTIME 100000
+static word *bufs[MAXTIME];
+
+unsigned long alloced = 0;
+static unsigned long maxalloced = 0;
+
+#ifdef HAVE_RANDOM
+extern long random();
+#define rnd(x) (random() % (long) (x))
+#define seedrnd(x) (srandom(x))
+#else /* ! HAVE_RANDOM */
+extern int rand();
+#define rnd(x) (rand() % (x))
+#define seedrnd(x) (srand(x))
+#endif /* HAVE_RANDOM */
+
+#ifdef MYMALLOC
+extern char * (* _malloc_memfunc)();
+#endif
+
+/*
+ * generally sprintf() to errstring and then call complain rather than
+ * use a varargs routine
+ */
+char errstring[128];
+
+/*
+ * Should probably have a more fancy version that does perror as well
+ * in a library someplace - like error()
+ */
+void
+complain(s)
+char *s;
+{
+ (void) fprintf(stderr, "%s: %s\n", progname, s);
+ exit(-1);
+}
+
+void
+usage()
+{
+ (void) fprintf(stderr, "\
+Usage: %s [-t MaxTime] [-s MaxSize] [-l MaxLife] [-m Mmapfile] [-a] [-d]\n", progname);
+ exit(-1);
+}
+
+int
+main(argc, argv)
+int argc;
+char **argv;
+{
+ int c;
+ register int t;
+ char *before, *after;
+ extern char *sbrk();
+ extern int atoi();
+ extern void freeall(), reserve();
+ unsigned long grew;
+ int alloconly = 0, use_mmap = 0, verbose = 0;
+
+ progname = argv[0] ? argv[0] : "(no-argv[0])";
+ NumAllocs = 1;
+ MaxTime = 15000;
+ MaxSize = 500;
+ MaxLife = 1000;
+ while((c = getopt(argc, argv, "n:t:s:l:dm:av")) != EOF) {
+ /* optarg has the current argument if the option was followed by ':'*/
+ switch (c) {
+ case 't':
+ MaxTime = atoi(optarg);
+ if (MaxTime < 0 || MaxTime > MAXTIME) {
+ (void) fprintf(stderr,
+ "%s: MaxTime must be > 0 and < %d\n", progname, MAXTIME);
+ exit(-1);
+ }
+ break;
+ case 's':
+ MaxSize = atoi(optarg);
+ if (MaxSize < 1)
+ complain("MaxSize must be > 0");
+ break;
+ case 'l':
+ MaxLife = atoi(optarg);
+ if (MaxLife < 0)
+ complain("MaxLife must be > 0");
+ break;
+ case 'n':
+ NumAllocs = atoi(optarg);
+ if (NumAllocs <= 0)
+ complain("NumAllocs must be > 0");
+ break;
+ case 'd':
+ /* Full heap debugging - S-L-O-W */
+#ifdef MYMALLOC
+ mal_debug(3);
+#endif
+ break;
+ case 'm':
+ use_mmap = 1;
+#ifdef MYMALLOC
+ mal_mmap(optarg);
+#else
+ complain("-m option needs CSRI malloc");
+#endif
+ break;
+ case 'a':
+ /* Only allocate -- no free */
+ alloconly = 1;
+ break;
+ case 'v':
+ verbose++;
+ break;
+ case '?':
+ usage();
+ break;
+ }
+ }
+ /* Any filenames etc. after all the options */
+ if (optind < argc) {
+ usage();
+ }
+
+ for(t = 0; t < MaxTime; t++)
+ bufs[t] = 0;
+
+#ifdef MYMALLOC
+ before = (* _malloc_memfunc)(0);
+#else
+ before = sbrk(0);
+#endif
+ for(t = 0; t < MaxTime; t++) {
+ register int n;
+
+ for(n = rnd(NumAllocs) + 1; n > 0; n--) {
+ int s, l;
+
+ s = rnd(MaxSize) + 2;
+ l = rnd(MaxLife) + 1;
+ reserve(s, t + l);
+ }
+ if (! alloconly)
+ freeall(t);
+ }
+#ifdef MYMALLOC
+ after = (* _malloc_memfunc)(0);
+#else
+ after = sbrk(0);
+#endif
+ grew = after - before;
+ (void) sprintf(errstring, "Sbrked %ld, MaxAlloced %ld, Wastage %.2f\n",
+ grew, maxalloced * sizeof(word),
+ grew == 0 ? 0.0 :
+ (1.0 - ((double) maxalloced * sizeof(word)) / grew));
+ (void) write(1, errstring, strlen(errstring));
+#ifdef MYMALLOC
+ if (verbose)
+ (void) mal_statsdump(stderr);
+#endif
+ return 0;
+}
+
+/*
+ * Mallocs a block s words long, and adds it to the list of blocks to
+ * be freed at time tfree
+ */
+void
+reserve(s, tfree)
+int s;
+int tfree;
+{
+ word *wp;
+
+ wp = (word *) malloc(s * sizeof(word));
+ if (wp == NULL)
+ complain("Out of memory");
+ wp[0].ptr = bufs[tfree];
+ wp[1].size = s;
+ bufs[tfree] = wp;
+ alloced += s;
+ if (alloced > maxalloced)
+ maxalloced = alloced;
+}
+
+/* free all blocks whose lifetime expires at time t */
+void
+freeall(t)
+int t;
+{
+ word *wp;
+
+ wp = bufs[t];
+ while(wp != NULL) {
+ word *tmp = wp[0].ptr;
+ alloced -= wp[1].size;
+ free((char *) wp);
+ wp = tmp;
+ }
+}
diff --git a/lib/libmalloc/tests/t1.c b/lib/libmalloc/tests/t1.c
new file mode 100644
index 000000000000..7cdde93e4946
--- /dev/null
+++ b/lib/libmalloc/tests/t1.c
@@ -0,0 +1,40 @@
+#include <stdio.h>
+
+#define MAXALLOCS 1000
+#define SIZE 50
+
+extern char *sbrk();
+extern char *malloc();
+
+main()
+{
+ char *ptr[MAXALLOCS];
+ char *obrk, *nbrk;
+ int i;
+
+ obrk = sbrk(0);
+ printf("break is initially 0x%x\n", obrk);
+
+ for(i = 0; i < MAXALLOCS; i++) {
+ ptr[i] = malloc(SIZE);
+ }
+ nbrk = sbrk(0);
+ printf("break is 0x%x (%d bytes sbrked) after %d allocations of %d\n",
+ nbrk, nbrk - obrk, MAXALLOCS, SIZE);
+ for(i = 0; i < MAXALLOCS; i++) {
+ free(ptr[i]);
+ }
+ nbrk = sbrk(0);
+ printf("break is 0x%x (%d bytes sbrked) after freeing all allocations\n",
+ nbrk, nbrk - obrk);
+ fflush(stdout);
+
+ /* Should be enough memory for this without needing to sbrk */
+ (void) malloc(SIZE * (MAXALLOCS / 2));
+ nbrk = sbrk(0);
+
+ printf("break is 0x%x (%d bytes sbrked) after allocating %d\n",
+ nbrk, nbrk - obrk, SIZE * (MAXALLOCS/2));
+
+ exit(0);
+}
diff --git a/lib/libmalloc/tests/t2.c b/lib/libmalloc/tests/t2.c
new file mode 100644
index 000000000000..125c251e42b1
--- /dev/null
+++ b/lib/libmalloc/tests/t2.c
@@ -0,0 +1,37 @@
+#include <stdio.h>
+
+#define MAXALLOCS 100
+#define INC 50
+
+extern char *sbrk();
+extern char *malloc();
+
+main()
+{
+ char *ptr1, *ptr2;
+ char *obrk, *nbrk;
+ int i;
+ int small = 10;
+ int large = 128;
+
+ obrk = sbrk(0);
+ printf("break is initially 0x%x\n", obrk);
+
+ ptr1 = malloc(small);
+ ptr2 = malloc(small);
+ for(i = 0; i < MAXALLOCS; i++) {
+ (void) malloc(small);
+ free(ptr1);
+ ptr1 = malloc(large);
+ large += INC;
+ (void) malloc(small);
+ free(ptr2);
+ ptr2 = malloc(large);
+ large += INC;
+ mal_heapdump(stdout);
+ }
+ nbrk = sbrk(0);
+ printf("break is 0x%x (%d bytes sbrked)\n",
+ nbrk, nbrk - obrk);
+ exit(0);
+}
diff --git a/lib/libmalloc/tests/t3.c b/lib/libmalloc/tests/t3.c
new file mode 100644
index 000000000000..fdbc181e54f7
--- /dev/null
+++ b/lib/libmalloc/tests/t3.c
@@ -0,0 +1,110 @@
+/*
+Path: utstat!helios.physics.utoronto.ca!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!cs.utexas.edu!rice!sun-spots-request
+From: munsell!jwf@uunet.uu.net (Jim Franklin)
+Newsgroups: comp.sys.sun
+Subject: bug in SUN malloc()
+Keywords: Miscellaneous
+Message-ID: <4193@brazos.Rice.edu>
+Date: 4 Jan 90 13:05:06 GMT
+Sender: root@rice.edu
+Organization: Sun-Spots
+Lines: 95
+Approved: Sun-Spots@rice.edu
+X-Sun-Spots-Digest: Volume 9, Issue 4, message 10 of 12
+
+There is a bug in SUN's malloc() that causes it to sometimes attempt an
+sbrk() to grow the current process, even if there is a free block of the
+exact size available. The bug exists in OS 3.5 and 4.0.3, probably
+others.
+
+SUN's malloc() maintains the free list in a cartesian tree. The malloc()
+bug occurs when the root block is exactly equal in size to the requested
+allocation + alignment + overhead.
+
+malloc.c (416-427):
+> /-*
+> * ensure that at least one block is big enough to satisfy
+> * the request.
+> *-/
+>
+> if (weight(_root) <= nbytes) {
+> /-*
+> * the largest block is not enough.
+> *-/
+> if(!morecore(nbytes))
+> return 0;
+> }
+
+The '<=' should be '<'.
+
+The following 'malloc_bug' program illustrates the bug. Do a 'pstat -s'
+to see how much swap space you have, then run malloc_bug, requesting a
+chunk of memory at least 1/2 that size. E.g.,
+
+jwf@fechner #36 pstat -s
+8856k used (2120k text), 648872k free, 2776k wasted, 0k missing
+max process allocable = 229360k
+avail: 77*8192k 2*4096k 2*2048k 3*1024k 2*512k 3*256k 4*128k 3*64k 2*32k 4*16k 104*1k
+
+jwf@fechner #37 malloc_bug 200000000
+malloc_bug: requesting 200000000 bytes
+malloc_bug: got 200000000 bytes at 00022fd8
+malloc_bug: freeing 200000000 bytes
+malloc_bug: requesting 200000000 bytes
+malloc_bug: Not enough memory
+
+
+Jim Franklin, EPPS Inc., uunet!atexnet ---\
+32 Wiggins Ave., harvard!adelie ---+-- munsell!jwf
+Bedford, MA 01730 decvax!encore ---/
+(617) 276-7827
+
+
+*/
+#include <stdio.h>
+
+main (argc, argv)
+int argc;
+char **argv;
+{
+ char *p;
+ unsigned int size;
+ int i;
+ extern char *malloc ();
+
+ if ( argc != 2 ) {
+ fprintf (stderr, "usage: malloc_bug <chunk_size>\n");
+ exit (-1);
+ }
+ size = atoi (argv[1]);
+ /* malloc our large chunk */
+
+ fprintf (stderr, "malloc_bug: requesting %d bytes\n", size);
+ p = malloc (size);
+ if ( p == NULL ) {
+ perror ("malloc_bug");
+ exit (-1);
+ }
+ fprintf (stderr, "malloc_bug: got %d bytes at %08x\n", size, p);
+
+ /* malloc a bunch of small trash to
+ try to use up any free fragments
+ near the large chunk */
+ for ( i = 0; i < 2000; i++ )
+ (void) malloc (8);
+ /* repeatedly free and malloc the
+ large chunk -- if this fails then
+ malloc is broken ... */
+ for (;;) {
+ fprintf (stderr, "malloc_bug: freeing %d bytes\n", size);
+ free (p);
+ fprintf (stderr, "malloc_bug: requesting %d bytes\n", size);
+ p = malloc (size);
+ if ( p == NULL ) {
+ perror ("malloc_bug");
+ exit (-1);
+ }
+ fprintf (stderr, "malloc_bug: got %d bytes at %08x\n", size, p);
+ }
+
+} /* main */
diff --git a/lib/libmalloc/tests/t4.c b/lib/libmalloc/tests/t4.c
new file mode 100644
index 000000000000..45161ad0cd49
--- /dev/null
+++ b/lib/libmalloc/tests/t4.c
@@ -0,0 +1,20 @@
+int
+main()
+{
+ char *cp;
+ int i;
+ int n = getpagesize();
+ extern char *malloc();
+
+ printf("pagesize = %d\n", n);
+
+ for(i = 0; i < 5; i++) {
+ cp = malloc(n);
+ printf("malloc(%d) returned 0x%x\n", n, cp);
+ cp = malloc(2*n);
+ printf("malloc(%d) returned 0x%x\n", 2*n, cp);
+ cp = malloc(4*n);
+ printf("malloc(%d) returned 0x%x\n", 4*n, cp);
+ }
+ return 0;
+}
diff --git a/lib/libmalloc/tests/t5.c b/lib/libmalloc/tests/t5.c
new file mode 100644
index 000000000000..f25df6045594
--- /dev/null
+++ b/lib/libmalloc/tests/t5.c
@@ -0,0 +1,31 @@
+/*
+ * posted to the net by someone who asked "Why is this causing malloc to
+ * dump core! Modified slightly to free the pointers, which causes my
+ * debugging malloc to find the bug. Turning on malloc_debug(2) also
+ * spots the problem.
+ */
+#include <stdio.h>
+
+int
+main()
+{
+ char *p[3], wd[128];
+ int len, i;
+ char *malloc();
+ int strlen();
+
+ strcpy(wd,"test");
+
+ for (i=0; i<3; i++) {
+ len = strlen(wd);
+ if ((p[i] = malloc(len)) == NULL) {
+ printf("ERROR: malloc failed\n");
+ exit(-1);
+ }
+ else
+ strcpy(p[i],wd);
+ }
+ for(i=0; i < 3; i++)
+ free(p[i]);
+ return 0;
+}
diff --git a/lib/libmalloc/tests/test.out b/lib/libmalloc/tests/test.out
new file mode 100644
index 000000000000..49d51d139cf6
--- /dev/null
+++ b/lib/libmalloc/tests/test.out
@@ -0,0 +1,415 @@
+Malloc tracing starting
+Test starting
+testmalloc.c:48:sbrk 4096
+heapstart 0x23108
+heapend 0x24100
++ 100 100 0x23114
+Heap printout:
+Rover pointer is 0x240fc
+Arena from 0x23104 to 0x24100, 1024 (0x400) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23178, 28 (0x1c) words really 100 bytes
+ Free blk: 0x2317c to 0x240fc, 993 (0x3e1) words next=0x240fc, prev=0x240fc
+==============
+testmalloc.c:51:+ 150 152 0x23184
+Heap printout:
+Rover pointer is 0x240fc
+Arena from 0x23104 to 0x24100, 1024 (0x400) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23178, 28 (0x1c) words really 100 bytes
+ Allocated blk: 0x2317c to 0x2321c, 41 (0x29) words really 150 bytes
+ Free blk: 0x23220 to 0x240fc, 952 (0x3b8) words next=0x240fc, prev=0x240fc
+==============
+testmalloc.c:54:+ 191 192 0x23228
+Heap printout:
+Rover pointer is 0x240fc
+Arena from 0x23104 to 0x24100, 1024 (0x400) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23178, 28 (0x1c) words really 100 bytes
+ Allocated blk: 0x2317c to 0x2321c, 41 (0x29) words really 150 bytes
+ Allocated blk: 0x23220 to 0x232e8, 51 (0x33) words really 191 bytes
+ Free blk: 0x232ec to 0x240fc, 901 (0x385) words next=0x240fc, prev=0x240fc
+==============
+testmalloc.c:57:+ 2 4 0x232f4
+Heap printout:
+Rover pointer is 0x240fc
+Arena from 0x23104 to 0x24100, 1024 (0x400) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23178, 28 (0x1c) words really 100 bytes
+ Allocated blk: 0x2317c to 0x2321c, 41 (0x29) words really 150 bytes
+ Allocated blk: 0x23220 to 0x232e8, 51 (0x33) words really 191 bytes
+ Allocated blk: 0x232ec to 0x232f8, 4 (0x4) words really 2 bytes
+ Free blk: 0x232fc to 0x240fc, 897 (0x381) words next=0x240fc, prev=0x240fc
+==============
+testmalloc.c:60:+ 21 24 0x23304
+Heap printout:
+Rover pointer is 0x240fc
+Arena from 0x23104 to 0x24100, 1024 (0x400) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23178, 28 (0x1c) words really 100 bytes
+ Allocated blk: 0x2317c to 0x2321c, 41 (0x29) words really 150 bytes
+ Allocated blk: 0x23220 to 0x232e8, 51 (0x33) words really 191 bytes
+ Allocated blk: 0x232ec to 0x232f8, 4 (0x4) words really 2 bytes
+ Allocated blk: 0x232fc to 0x2331c, 9 (0x9) words really 21 bytes
+ Free blk: 0x23320 to 0x240fc, 888 (0x378) words next=0x240fc, prev=0x240fc
+==============
+testmalloc.c:63:+ 3540 3540 0x23328
+Heap printout:
+Rover pointer is 0x0
+Arena from 0x23104 to 0x24100, 1024 (0x400) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23178, 28 (0x1c) words really 100 bytes
+ Allocated blk: 0x2317c to 0x2321c, 41 (0x29) words really 150 bytes
+ Allocated blk: 0x23220 to 0x232e8, 51 (0x33) words really 191 bytes
+ Allocated blk: 0x232ec to 0x232f8, 4 (0x4) words really 2 bytes
+ Allocated blk: 0x232fc to 0x2331c, 9 (0x9) words really 21 bytes
+ Allocated blk: 0x23320 to 0x240fc, 888 (0x378) words really 3540 bytes
+==============
+testmalloc.c:67:- 3540 0x23328
+Heap printout:
+Rover pointer is 0x240fc
+Arena from 0x23104 to 0x24100, 1024 (0x400) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23178, 28 (0x1c) words really 100 bytes
+ Allocated blk: 0x2317c to 0x2321c, 41 (0x29) words really 150 bytes
+ Allocated blk: 0x23220 to 0x232e8, 51 (0x33) words really 191 bytes
+ Allocated blk: 0x232ec to 0x232f8, 4 (0x4) words really 2 bytes
+ Allocated blk: 0x232fc to 0x2331c, 9 (0x9) words really 21 bytes
+ Free blk: 0x23320 to 0x240fc, 888 (0x378) words next=0x240fc, prev=0x240fc
+==============
+testmalloc.c:69:- 192 0x23228
+Heap printout:
+Rover pointer is 0x232e8
+Arena from 0x23104 to 0x24100, 1024 (0x400) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23178, 28 (0x1c) words really 100 bytes
+ Allocated blk: 0x2317c to 0x2321c, 41 (0x29) words really 150 bytes
+ Free blk: 0x23220 to 0x232e8, 51 (0x33) words next=0x240fc, prev=0x240fc
+ Allocated blk: 0x232ec to 0x232f8, 4 (0x4) words really 2 bytes
+ Allocated blk: 0x232fc to 0x2331c, 9 (0x9) words really 21 bytes
+ Free blk: 0x23320 to 0x240fc, 888 (0x378) words next=0x232e8, prev=0x232e8
+==============
+testmalloc.c:71:- 4 0x232f4
+Heap printout:
+Rover pointer is 0x232f8
+Arena from 0x23104 to 0x24100, 1024 (0x400) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23178, 28 (0x1c) words really 100 bytes
+ Allocated blk: 0x2317c to 0x2321c, 41 (0x29) words really 150 bytes
+ Free blk: 0x23220 to 0x232f8, 55 (0x37) words next=0x240fc, prev=0x240fc
+ Allocated blk: 0x232fc to 0x2331c, 9 (0x9) words really 21 bytes
+ Free blk: 0x23320 to 0x240fc, 888 (0x378) words next=0x232f8, prev=0x232f8
+==============
+testmalloc.c:73:- 152 0x23184
+Heap printout:
+Rover pointer is 0x232f8
+Arena from 0x23104 to 0x24100, 1024 (0x400) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23178, 28 (0x1c) words really 100 bytes
+ Free blk: 0x2317c to 0x232f8, 96 (0x60) words next=0x240fc, prev=0x240fc
+ Allocated blk: 0x232fc to 0x2331c, 9 (0x9) words really 21 bytes
+ Free blk: 0x23320 to 0x240fc, 888 (0x378) words next=0x232f8, prev=0x232f8
+==============
+testmalloc.c:75:- 24 0x23304
+Heap printout:
+Rover pointer is 0x240fc
+Arena from 0x23104 to 0x24100, 1024 (0x400) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23178, 28 (0x1c) words really 100 bytes
+ Free blk: 0x2317c to 0x240fc, 993 (0x3e1) words next=0x240fc, prev=0x240fc
+==============
+testmalloc.c:77:- 100 0x23114
+Heap printout:
+Rover pointer is 0x240fc
+Arena from 0x23104 to 0x24100, 1024 (0x400) words
+Next arena is 0x0
+ Free blk: 0x2310c to 0x240fc, 1021 (0x3fd) words next=0x240fc, prev=0x240fc
+==============
+testmalloc.c:79:+ 100 100 0x23114
+Heap printout:
+Rover pointer is 0x240fc
+Arena from 0x23104 to 0x24100, 1024 (0x400) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23178, 28 (0x1c) words really 100 bytes
+ Free blk: 0x2317c to 0x240fc, 993 (0x3e1) words next=0x240fc, prev=0x240fc
+==============
+testmalloc.c:82:+ 155 156 0x23184
+Heap printout:
+Rover pointer is 0x240fc
+Arena from 0x23104 to 0x24100, 1024 (0x400) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23178, 28 (0x1c) words really 100 bytes
+ Allocated blk: 0x2317c to 0x23220, 42 (0x2a) words really 155 bytes
+ Free blk: 0x23224 to 0x240fc, 951 (0x3b7) words next=0x240fc, prev=0x240fc
+==============
+testmalloc.c:85:sbrk 12288
+- 12276 0x24108
++ 8192 8192 0x2322c
+Heap printout:
+Rover pointer is 0x270fc
+Arena from 0x23104 to 0x27100, 4096 (0x1000) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23178, 28 (0x1c) words really 100 bytes
+ Allocated blk: 0x2317c to 0x23220, 42 (0x2a) words really 155 bytes
+ Allocated blk: 0x23224 to 0x2522c, 2051 (0x803) words really 8192 bytes
+ Free blk: 0x25230 to 0x270fc, 1972 (0x7b4) words next=0x270fc, prev=0x270fc
+==============
+testmalloc.c:88:+ 100 100 0x25238
+Heap printout:
+Rover pointer is 0x270fc
+Arena from 0x23104 to 0x27100, 4096 (0x1000) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23178, 28 (0x1c) words really 100 bytes
+ Allocated blk: 0x2317c to 0x23220, 42 (0x2a) words really 155 bytes
+ Allocated blk: 0x23224 to 0x2522c, 2051 (0x803) words really 8192 bytes
+ Allocated blk: 0x25230 to 0x2529c, 28 (0x1c) words really 100 bytes
+ Free blk: 0x252a0 to 0x270fc, 1944 (0x798) words next=0x270fc, prev=0x270fc
+==============
+testmalloc.c:91:+ 29 32 0x252a8
+Heap printout:
+Rover pointer is 0x270fc
+Arena from 0x23104 to 0x27100, 4096 (0x1000) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23178, 28 (0x1c) words really 100 bytes
+ Allocated blk: 0x2317c to 0x23220, 42 (0x2a) words really 155 bytes
+ Allocated blk: 0x23224 to 0x2522c, 2051 (0x803) words really 8192 bytes
+ Allocated blk: 0x25230 to 0x2529c, 28 (0x1c) words really 100 bytes
+ Allocated blk: 0x252a0 to 0x252c8, 11 (0xb) words really 29 bytes
+ Free blk: 0x252cc to 0x270fc, 1933 (0x78d) words next=0x270fc, prev=0x270fc
+==============
+testmalloc.c:94:- 8192 0x2322c
+Heap printout:
+Rover pointer is 0x2522c
+Arena from 0x23104 to 0x27100, 4096 (0x1000) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23178, 28 (0x1c) words really 100 bytes
+ Allocated blk: 0x2317c to 0x23220, 42 (0x2a) words really 155 bytes
+ Free blk: 0x23224 to 0x2522c, 2051 (0x803) words next=0x270fc, prev=0x270fc
+ Allocated blk: 0x25230 to 0x2529c, 28 (0x1c) words really 100 bytes
+ Allocated blk: 0x252a0 to 0x252c8, 11 (0xb) words really 29 bytes
+ Free blk: 0x252cc to 0x270fc, 1933 (0x78d) words next=0x2522c, prev=0x2522c
+==============
+testmalloc.c:96:- 100 0x25238
+Heap printout:
+Rover pointer is 0x2529c
+Arena from 0x23104 to 0x27100, 4096 (0x1000) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23178, 28 (0x1c) words really 100 bytes
+ Allocated blk: 0x2317c to 0x23220, 42 (0x2a) words really 155 bytes
+ Free blk: 0x23224 to 0x2529c, 2079 (0x81f) words next=0x270fc, prev=0x270fc
+ Allocated blk: 0x252a0 to 0x252c8, 11 (0xb) words really 29 bytes
+ Free blk: 0x252cc to 0x270fc, 1933 (0x78d) words next=0x2529c, prev=0x2529c
+==============
+testmalloc.c:98:- 156 0x23184
+Heap printout:
+Rover pointer is 0x2529c
+Arena from 0x23104 to 0x27100, 4096 (0x1000) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23178, 28 (0x1c) words really 100 bytes
+ Free blk: 0x2317c to 0x2529c, 2121 (0x849) words next=0x270fc, prev=0x270fc
+ Allocated blk: 0x252a0 to 0x252c8, 11 (0xb) words really 29 bytes
+ Free blk: 0x252cc to 0x270fc, 1933 (0x78d) words next=0x2529c, prev=0x2529c
+==============
+testmalloc.c:100:- 32 0x252a8
+Heap printout:
+Rover pointer is 0x270fc
+Arena from 0x23104 to 0x27100, 4096 (0x1000) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23178, 28 (0x1c) words really 100 bytes
+ Free blk: 0x2317c to 0x270fc, 4065 (0xfe1) words next=0x270fc, prev=0x270fc
+==============
+testmalloc.c:102:- 100 0x23114
+Heap printout:
+Rover pointer is 0x270fc
+Arena from 0x23104 to 0x27100, 4096 (0x1000) words
+Next arena is 0x0
+ Free blk: 0x2310c to 0x270fc, 4093 (0xffd) words next=0x270fc, prev=0x270fc
+==============
+testmalloc.c:105:+ 1005 1008 0x23114
+Heap printout:
+Rover pointer is 0x270fc
+Arena from 0x23104 to 0x27100, 4096 (0x1000) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23504, 255 (0xff) words really 1005 bytes
+ Free blk: 0x23508 to 0x270fc, 3838 (0xefe) words next=0x270fc, prev=0x270fc
+==============
+testmalloc.c:108:+ 8192 8192 0x23510
+Heap printout:
+Rover pointer is 0x270fc
+Arena from 0x23104 to 0x27100, 4096 (0x1000) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23504, 255 (0xff) words really 1005 bytes
+ Allocated blk: 0x23508 to 0x25510, 2051 (0x803) words really 8192 bytes
+ Free blk: 0x25514 to 0x270fc, 1787 (0x6fb) words next=0x270fc, prev=0x270fc
+==============
+testmalloc.c:111:sbrk 16384
+heapend 0x2b164
++ 16000 16000 0x27178
+Heap printout:
+Rover pointer is 0x2b160
+Arena from 0x27168 to 0x2b164, 4096 (0x1000) words
+Next arena is 0x23104
+ Allocated blk: 0x27170 to 0x2aff8, 4003 (0xfa3) words really 16000 bytes
+ Free blk: 0x2affc to 0x2b160, 90 (0x5a) words next=0x270fc, prev=0x270fc
+Arena from 0x23104 to 0x27100, 4096 (0x1000) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23504, 255 (0xff) words really 1005 bytes
+ Allocated blk: 0x23508 to 0x25510, 2051 (0x803) words really 8192 bytes
+ Free blk: 0x25514 to 0x270fc, 1787 (0x6fb) words next=0x2b160, prev=0x2b160
+==============
+testmalloc.c:114:+ 29 32 0x2b004
+Heap printout:
+Rover pointer is 0x2b160
+Arena from 0x27168 to 0x2b164, 4096 (0x1000) words
+Next arena is 0x23104
+ Allocated blk: 0x27170 to 0x2aff8, 4003 (0xfa3) words really 16000 bytes
+ Allocated blk: 0x2affc to 0x2b024, 11 (0xb) words really 29 bytes
+ Free blk: 0x2b028 to 0x2b160, 79 (0x4f) words next=0x270fc, prev=0x270fc
+Arena from 0x23104 to 0x27100, 4096 (0x1000) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23504, 255 (0xff) words really 1005 bytes
+ Allocated blk: 0x23508 to 0x25510, 2051 (0x803) words really 8192 bytes
+ Free blk: 0x25514 to 0x270fc, 1787 (0x6fb) words next=0x2b160, prev=0x2b160
+==============
+testmalloc.c:118:sbrk 77824
+- 77812 0x2b16c
++ 73727 73728 0x2b030
+- 4132 0x3c00c
+- 4036 0x2b030
+Heap printout:
+Rover pointer is 0x2bff4
+Arena from 0x27168 to 0x3e164, 23552 (0x5c00) words
+Next arena is 0x23104
+ Allocated blk: 0x27170 to 0x2aff8, 4003 (0xfa3) words really 16000 bytes
+ Allocated blk: 0x2affc to 0x2b024, 11 (0xb) words really 29 bytes
+ Free blk: 0x2b028 to 0x2bff4, 1012 (0x3f4) words next=0x3e160, prev=0x270fc
+ Allocated blk: 0x2bff8 to 0x3c000, 16387 (0x4003) words really 65536 bytes
+ Free blk: 0x3c004 to 0x3e160, 2136 (0x858) words next=0x270fc, prev=0x2bff4
+Arena from 0x23104 to 0x27100, 4096 (0x1000) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23504, 255 (0xff) words really 1005 bytes
+ Allocated blk: 0x23508 to 0x25510, 2051 (0x803) words really 8192 bytes
+ Free blk: 0x25514 to 0x270fc, 1787 (0x6fb) words next=0x2bff4, prev=0x3e160
+==============
+testmalloc.c:121:- 57524 0x2df4c
+Heap printout:
+Rover pointer is 0x3e160
+Arena from 0x27168 to 0x3e164, 23552 (0x5c00) words
+Next arena is 0x23104
+ Allocated blk: 0x27170 to 0x2aff8, 4003 (0xfa3) words really 16000 bytes
+ Allocated blk: 0x2affc to 0x2b024, 11 (0xb) words really 29 bytes
+ Free blk: 0x2b028 to 0x2bff4, 1012 (0x3f4) words next=0x3e160, prev=0x270fc
+ Allocated blk: 0x2bff8 to 0x2df40, 2003 (0x7d3) words really 8000 bytes
+ Free blk: 0x2df44 to 0x3e160, 16520 (0x4088) words next=0x270fc, prev=0x2bff4
+Arena from 0x23104 to 0x27100, 4096 (0x1000) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23504, 255 (0xff) words really 1005 bytes
+ Allocated blk: 0x23508 to 0x25510, 2051 (0x803) words really 8192 bytes
+ Free blk: 0x25514 to 0x270fc, 1787 (0x6fb) words next=0x2bff4, prev=0x3e160
+==============
+testmalloc.c:124:no-op
+Heap printout:
+Rover pointer is 0x3e160
+Arena from 0x27168 to 0x3e164, 23552 (0x5c00) words
+Next arena is 0x23104
+ Allocated blk: 0x27170 to 0x2aff8, 4003 (0xfa3) words really 16000 bytes
+ Allocated blk: 0x2affc to 0x2b024, 11 (0xb) words really 29 bytes
+ Free blk: 0x2b028 to 0x2bff4, 1012 (0x3f4) words next=0x3e160, prev=0x270fc
+ Allocated blk: 0x2bff8 to 0x2df40, 2003 (0x7d3) words really 7998 bytes
+ Free blk: 0x2df44 to 0x3e160, 16520 (0x4088) words next=0x270fc, prev=0x2bff4
+Arena from 0x23104 to 0x27100, 4096 (0x1000) words
+Next arena is 0x0
+ Allocated blk: 0x2310c to 0x23504, 255 (0xff) words really 1005 bytes
+ Allocated blk: 0x23508 to 0x25510, 2051 (0x803) words really 8192 bytes
+ Free blk: 0x25514 to 0x270fc, 1787 (0x6fb) words next=0x2bff4, prev=0x3e160
+==============
+testmalloc.c:127:- 1008 0x23114
+Heap printout:
+Rover pointer is 0x23504
+Arena from 0x27168 to 0x3e164, 23552 (0x5c00) words
+Next arena is 0x23104
+ Allocated blk: 0x27170 to 0x2aff8, 4003 (0xfa3) words really 16000 bytes
+ Allocated blk: 0x2affc to 0x2b024, 11 (0xb) words really 29 bytes
+ Free blk: 0x2b028 to 0x2bff4, 1012 (0x3f4) words next=0x23504, prev=0x270fc
+ Allocated blk: 0x2bff8 to 0x2df40, 2003 (0x7d3) words really 7998 bytes
+ Free blk: 0x2df44 to 0x3e160, 16520 (0x4088) words next=0x270fc, prev=0x23504
+Arena from 0x23104 to 0x27100, 4096 (0x1000) words
+Next arena is 0x0
+ Free blk: 0x2310c to 0x23504, 255 (0xff) words next=0x3e160, prev=0x2bff4
+ Allocated blk: 0x23508 to 0x25510, 2051 (0x803) words really 8192 bytes
+ Free blk: 0x25514 to 0x270fc, 1787 (0x6fb) words next=0x2bff4, prev=0x3e160
+==============
+testmalloc.c:129:- 8192 0x23510
+Heap printout:
+Rover pointer is 0x270fc
+Arena from 0x27168 to 0x3e164, 23552 (0x5c00) words
+Next arena is 0x23104
+ Allocated blk: 0x27170 to 0x2aff8, 4003 (0xfa3) words really 16000 bytes
+ Allocated blk: 0x2affc to 0x2b024, 11 (0xb) words really 29 bytes
+ Free blk: 0x2b028 to 0x2bff4, 1012 (0x3f4) words next=0x3e160, prev=0x270fc
+ Allocated blk: 0x2bff8 to 0x2df40, 2003 (0x7d3) words really 7998 bytes
+ Free blk: 0x2df44 to 0x3e160, 16520 (0x4088) words next=0x270fc, prev=0x2bff4
+Arena from 0x23104 to 0x27100, 4096 (0x1000) words
+Next arena is 0x0
+ Free blk: 0x2310c to 0x270fc, 4093 (0xffd) words next=0x2bff4, prev=0x3e160
+==============
+testmalloc.c:131:- 32 0x2b004
+Heap printout:
+Rover pointer is 0x2bff4
+Arena from 0x27168 to 0x3e164, 23552 (0x5c00) words
+Next arena is 0x23104
+ Allocated blk: 0x27170 to 0x2aff8, 4003 (0xfa3) words really 16000 bytes
+ Free blk: 0x2affc to 0x2bff4, 1023 (0x3ff) words next=0x3e160, prev=0x270fc
+ Allocated blk: 0x2bff8 to 0x2df40, 2003 (0x7d3) words really 7998 bytes
+ Free blk: 0x2df44 to 0x3e160, 16520 (0x4088) words next=0x270fc, prev=0x2bff4
+Arena from 0x23104 to 0x27100, 4096 (0x1000) words
+Next arena is 0x0
+ Free blk: 0x2310c to 0x270fc, 4093 (0xffd) words next=0x2bff4, prev=0x3e160
+==============
+testmalloc.c:133:- 16000 0x27178
+Heap printout:
+Rover pointer is 0x2bff4
+Arena from 0x27168 to 0x3e164, 23552 (0x5c00) words
+Next arena is 0x23104
+ Free blk: 0x27170 to 0x2bff4, 5026 (0x13a2) words next=0x3e160, prev=0x270fc
+ Allocated blk: 0x2bff8 to 0x2df40, 2003 (0x7d3) words really 7998 bytes
+ Free blk: 0x2df44 to 0x3e160, 16520 (0x4088) words next=0x270fc, prev=0x2bff4
+Arena from 0x23104 to 0x27100, 4096 (0x1000) words
+Next arena is 0x0
+ Free blk: 0x2310c to 0x270fc, 4093 (0xffd) words next=0x2bff4, prev=0x3e160
+==============
+testmalloc.c:135:++ 16000 16000 0x2c000 58080 0x2fe84
+Heap printout:
+Rover pointer is 0x2bff4
+Arena from 0x27168 to 0x3e164, 23552 (0x5c00) words
+Next arena is 0x23104
+ Free blk: 0x27170 to 0x2bff4, 5026 (0x13a2) words next=0x3e160, prev=0x270fc
+ Allocated blk: 0x2bff8 to 0x2fe80, 4003 (0xfa3) words really 16000 bytes
+ Free blk: 0x2fe84 to 0x3e160, 14520 (0x38b8) words next=0x270fc, prev=0x2bff4
+Arena from 0x23104 to 0x27100, 4096 (0x1000) words
+Next arena is 0x0
+ Free blk: 0x2310c to 0x270fc, 4093 (0xffd) words next=0x2bff4, prev=0x3e160
+==============
+testmalloc.c:138:++ 32000 32000 0x2c000 42080 0x33d04
+Heap printout:
+Rover pointer is 0x2bff4
+Arena from 0x27168 to 0x3e164, 23552 (0x5c00) words
+Next arena is 0x23104
+ Free blk: 0x27170 to 0x2bff4, 5026 (0x13a2) words next=0x3e160, prev=0x270fc
+ Allocated blk: 0x2bff8 to 0x33d00, 8003 (0x1f43) words really 32000 bytes
+ Free blk: 0x33d04 to 0x3e160, 10520 (0x2918) words next=0x270fc, prev=0x2bff4
+Arena from 0x23104 to 0x27100, 4096 (0x1000) words
+Next arena is 0x0
+ Free blk: 0x2310c to 0x270fc, 4093 (0xffd) words next=0x2bff4, prev=0x3e160
+==============
+16: 1
+36: 1
+44: 2
+112: 3
+164: 1
+168: 1
+204: 1
+1020: 1
+3552: 1
+>= 8192: 4
+Test done
diff --git a/lib/libmalloc/tests/testmalloc.c b/lib/libmalloc/tests/testmalloc.c
new file mode 100644
index 000000000000..d037b5e1bf00
--- /dev/null
+++ b/lib/libmalloc/tests/testmalloc.c
@@ -0,0 +1,182 @@
+#if defined(STDHEADERS)
+# include <stddef.h>
+# include <string.h>
+# include <stdlib.h>
+# include <unistd.h>
+#else
+# define u_int unsigned int
+extern char *memset();
+/* ignore some complaints about declarations. get ANSI headers */
+#endif
+
+#include <stdio.h>
+#include "malloc.h"
+
+/*
+ * Things to test. 1. first malloc. 2. couple of ordinary mallocs 3.
+ * ordinary frees 4. want check a free with prev. merge, next merge,
+ * both, and no merge, and one with empty free list. 5. malloc that
+ * requires sbrk. 6. malloc that requires an sbrk, after test
+ * program does non-contiguous sbrk to check if non-contigous arenas
+ * work. 7. valloc (this should test memalign as well) We should work
+ * out tests to check boundary conditions, when blocks at the start
+ * of the arena are allocated/freed, last free block is allocated...
+ */
+
+
+char *progname;
+/* For getopt() */
+extern int getopt();
+extern int optind;
+extern char *optarg;
+
+int
+main(argc, argv)
+int argc;
+char **argv;
+{
+ char *cp1;
+ char *cp2;
+ char *cp3;
+ char *cp4;
+ char *cp5;
+ char *cp6;
+ extern char *sbrk();
+ FILE *dumpfp = stdout;
+ int errs = 0, c;
+
+ progname = argv[0] ? argv[0] : "(no-argv[0])";
+ mal_debug(3);
+ mal_setstatsfile(stdout);
+ mal_trace(1);
+ while((c = getopt(argc, argv, "m:")) != EOF) {
+ /* optarg has the current argument if the option was followed by ':'*/
+ switch (c) {
+ case 'm':
+ mal_mmap(optarg);
+ break;
+ case '?':
+ errs++;
+ break;
+ }
+ }
+ if (optind < argc || errs > 0) {
+ fprintf(stderr, "Usage: %s [-m Mmapfile]\n", progname);
+ exit(1);
+ }
+ write(1, "Test starting\n", 14);
+ cp1 = (char *)malloc((u_int) 100);
+ (void) memset(cp1, 'A', 100);
+ mal_heapdump(dumpfp);
+ cp2 = (char *)calloc((u_int) 15, (u_int) 10);
+ (void) memset(cp2, 'B', 150);
+ mal_heapdump(dumpfp);
+ cp3 = (char *)malloc((u_int) 191);
+ (void) memset(cp3, 'C', 191);
+ mal_heapdump(dumpfp);
+ cp4 = (char *)malloc((u_int) 2);
+ (void) memset(cp4, 'D', 2);
+ mal_heapdump(dumpfp);
+ cp5 = (char *)malloc((u_int) 21);
+ (void) memset(cp5, 'E', 21);
+ mal_heapdump(dumpfp);
+ cp6 = (char *)malloc((u_int) 3540);
+ (void) memset(cp6, 'P', 3540);
+ mal_heapdump(dumpfp);
+ /* On a machine where sizeof(Word) == 4, rover should be NULL here */
+ free(cp6);
+ mal_heapdump(dumpfp);
+ free(cp3);
+ mal_heapdump(dumpfp);
+ free(cp4);
+ mal_heapdump(dumpfp);
+ free(cp2);
+ mal_heapdump(dumpfp);
+ free(cp5);
+ mal_heapdump(dumpfp);
+ free(cp1);
+ mal_heapdump(dumpfp);
+ cp1 = (char *)malloc((u_int) 100);
+ (void) memset(cp1, 'Q', 100);
+ mal_heapdump(dumpfp);
+ cp2 = (char *)malloc((u_int) 155);
+ (void) memset(cp2, 'F', 155);
+ mal_heapdump(dumpfp);
+ cp3 = (char *)malloc((u_int) 8192);
+ (void) memset(cp3, 'G', 8192);
+ mal_heapdump(dumpfp);
+ cp4 = (char *)malloc((u_int) 100);
+ (void) memset(cp4, 'H', 100);
+ mal_heapdump(dumpfp);
+ cp5 = (char *)malloc((u_int) 29);
+ (void) memset(cp5, 'I', 29);
+ mal_heapdump(dumpfp);
+ free(cp3);
+ mal_heapdump(dumpfp);
+ free(cp4);
+ mal_heapdump(dumpfp);
+ free(cp2);
+ mal_heapdump(dumpfp);
+ free(cp5);
+ mal_heapdump(dumpfp);
+ free(cp1);
+ mal_heapdump(dumpfp);
+ cp1 = sbrk(100);
+ cp2 = (char *)malloc((u_int) 1005);
+ (void) memset(cp2, 'J', 1005);
+ mal_heapdump(dumpfp);
+ cp3 = (char *)calloc((u_int) 1024, (u_int) 8);
+ (void) memset(cp3, 'K', 8192);
+ mal_heapdump(dumpfp);
+ cp4 = (char *)malloc((u_int) 16000);
+ (void) memset(cp4, 'L', 16000);
+ mal_heapdump(dumpfp);
+ cp5 = (char *)malloc((u_int) 29);
+ (void) memset(cp5, 'M', 29);
+ mal_heapdump(dumpfp);
+ /* !! Should really test memalign with various cases */
+ cp1 = (char *)valloc((u_int) 65536);
+ (void) memset(cp1, 'N', 65536);
+ mal_heapdump(dumpfp);
+ cp1 = (char *)realloc(cp1, (u_int) 8000);
+ (void) memset(cp1, 'O', 8000);
+ mal_heapdump(dumpfp);
+ cp1 = (char *)realloc(cp1, (u_int) 7998);
+ (void) memset(cp1, 'T', 7998);
+ mal_heapdump(dumpfp);
+ free(cp2);
+ mal_heapdump(dumpfp);
+ free(cp3);
+ mal_heapdump(dumpfp);
+ free(cp5);
+ mal_heapdump(dumpfp);
+ free(cp4);
+ mal_heapdump(dumpfp);
+ cp1 = (char *)realloc(cp1, (u_int) 16000);
+ (void) memset(cp1, 'R', 16000);
+ mal_heapdump(dumpfp);
+ cp1 = (char *)realloc(cp1, (u_int) 32000);
+ (void) memset(cp1, 'S', 32000);
+ mal_heapdump(dumpfp);
+ cp1 = (char *)realloc(cp1, (u_int) 1);
+ (void) memset(cp1, 'U', 1);
+ cp2 = (char *)malloc(60000);
+ (void) memset(cp2, 'V', 60000);
+ cp3 = (char *)malloc(18000);
+ (void) memset(cp3, 'W', 18000);
+ cp4 = (char *)malloc(18000);
+ (void) memset(cp4, 'W', 18000);
+ mal_heapdump(dumpfp);
+ free(cp1);
+ mal_heapdump(dumpfp);
+ mal_statsdump(dumpfp);
+ (void) write(1, "Test done\n", 10);
+ return 0;
+}
+
+#ifdef atarist
+getpagesize()
+{
+ return 8 * 1024;
+}
+#endif
diff --git a/lib/libmalloc/tests/testmemalign.c b/lib/libmalloc/tests/testmemalign.c
new file mode 100644
index 000000000000..2a5a729a9675
--- /dev/null
+++ b/lib/libmalloc/tests/testmemalign.c
@@ -0,0 +1,16 @@
+int
+main()
+{
+ extern char *memalign();
+ char *cp;
+
+ if ((cp = memalign(2, 1024)) == 0)
+ perror("memalign 2");
+ if ((cp = memalign(3, 1024)) == 0)
+ perror("memalign 3");
+ if ((cp = memalign(4, 1024)) == 0)
+ perror("memalign 4");
+
+ return 0;
+}
+
diff --git a/lib/libmalloc/tests/testrun.sh b/lib/libmalloc/tests/testrun.sh
new file mode 100755
index 000000000000..9da9568d2cdf
--- /dev/null
+++ b/lib/libmalloc/tests/testrun.sh
@@ -0,0 +1,28 @@
+#! /bin/sh
+time=time
+awk 'BEGIN {
+ maxtime = 15000;
+ maxsize = 610; isize = 50;
+ maxlife = 8010; ilife = 100;
+ hdrfmt = "echo \"Maxtime = %d, Maxsize = %d, Maxlife = %d\"\n";
+ fmt = "$time $cmd -t %d -s %d -l %d\n";
+ }
+ END {
+ for (i = 10; i < maxsize; i += isize) {
+ for (j = 10; j < maxlife; j += ilife) {
+ printf hdrfmt, maxtime, i, j;
+ printf fmt, maxtime, i, j;
+ printf fmt, maxtime, i, j;
+ printf fmt, maxtime, i, j;
+ }
+ }
+ }' /dev/null > /tmp/runs.$$
+for i
+do
+ ext=`expr "$i" : "simumalloc.exe\(.*\)"`
+ date
+ echo $i
+ cmd="./$i"
+ . /tmp/runs.$$ > times$ext 2>&1
+ date
+done
diff --git a/lib/libmalloc/tests/testsbrk.c b/lib/libmalloc/tests/testsbrk.c
new file mode 100644
index 000000000000..ff6c68d1bb45
--- /dev/null
+++ b/lib/libmalloc/tests/testsbrk.c
@@ -0,0 +1,22 @@
+#include <stdio.h>
+
+int incr = 201;
+char *cp;
+int i;
+
+main()
+{
+ extern char *sbrk();
+ int sz;
+
+ sz = getpagesize();
+ printf("pagesize is 0x%08x (%d)\n", sz, sz);
+ for(i = 0; i < 1000; i++) {
+ if ((cp = sbrk(incr)) == (char *) -1) {
+ fprintf(stderr, "Cannot sbrk further\n");
+ exit(-1);
+ }
+ printf("segment starts at 0x%08x, ends at 0x%08x\n", (int) cp,
+ (int) (cp + incr - 1));
+ }
+}
diff --git a/lib/libmalloc/tests/teststomp.c b/lib/libmalloc/tests/teststomp.c
new file mode 100644
index 000000000000..c591921144a9
--- /dev/null
+++ b/lib/libmalloc/tests/teststomp.c
@@ -0,0 +1,34 @@
+#if defined(STDHEADERS)
+# include <stddef.h>
+# include <string.h>
+# include <stdlib.h>
+# include <unistd.h>
+#else
+# define u_int unsigned int
+extern char *memset();
+/* ignore some complaints about declarations. get ANSI headers */
+#endif
+
+#include <stdio.h>
+#include "malloc.h"
+
+int
+main(argc, argv)
+char **argv;
+int argc;
+{
+ char *cp;
+ int nbytes;
+
+ if (argc != 2) {
+ (void) fprintf(stderr, "Usage: %s nbytes\n", argv[0]);
+ exit(1);
+ }
+
+ nbytes = atoi(argv[1]);
+ cp = (char *) malloc(nbytes);
+ cp[nbytes] = 'a';
+ mal_verify(1);
+ /* We aren't going to get here, y'know... */
+ return 0;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-05 09:32:24 +0000