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gcc/boehm-gc/test.c
Hans Boehm 41029b884a finalize.c: - Accomodate finalization requests for static objects. 
2001-04-04  Hans Boehm  <hans_boehm@hp.com>

	* finalize.c:
	- Accomodate finalization requests for static objects.
	  (Will be required by hash synchronization.  May be needed
	  in some configurations now.)

	* gc_priv.h:
	- Define MIN_WORDS.  All allocation requests are rounded
	  up to at least this size.  Removes a subtle assumption that
	  Java objects have a 2 word header.

	* gcconfig.h:
	- Adjust Linux/IA64 configuration for non-ancient kernels.
	  (Necessary fix for IA64.)

	* linux_threads.c:
	- Fix syntax error in currently unused code.  Will be needed
	  for Linux/PA-RISC.

	* malloc.c:
	- Handle MIN_WORDS.

	* misc.c:
	- Handle MIN_WORDS.
	- Change stack cleaning code to typically clear about one tenth
	  the memory it used to in the threads configuration.  Occasionally
	  still clear more.  (This is really a fix for a long-standing
	  and fairly significant performance bug with threads.)

	* os_dep.c:
	- Fix the code for finding the beginning of the data segment under
	  Linux.  I believe this is necessary for some IA64 Linux
	  distributions.  It will also helo other platforms, though those
	  may additionally require a gcconfig.h adjustment.  (This basically
	  works around the absence of a data_start or __data_start
	  definition in glibc.)

	* test.c:
	- Handle rounding due to MIN_WORDS.

From-SVN: r41102
2001-04-05 00:14:18 +00:00

1391 lines
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/*
* Copyright 1988, 1989 Hans-J. Boehm, Alan J. Demers
* Copyright (c) 1991-1994 by Xerox Corporation. All rights reserved.
* Copyright (c) 1996 by Silicon Graphics. All rights reserved.
*
* THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
* OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
*
* Permission is hereby granted to use or copy this program
* for any purpose, provided the above notices are retained on all copies.
* Permission to modify the code and to distribute modified code is granted,
* provided the above notices are retained, and a notice that the code was
* modified is included with the above copyright notice.
*/
/* An incomplete test for the garbage collector. */
/* Some more obscure entry points are not tested at all. */
# undef GC_BUILD
# if defined(mips) && defined(SYSTYPE_BSD43)
/* MIPS RISCOS 4 */
# else
# include <stdlib.h>
# endif
# include <stdio.h>
# include <assert.h> /* Not normally used, but handy for debugging. */
# include "gc.h"
# include "gc_typed.h"
# include "gc_priv.h" /* For output, locking, and some statistics */
# include "gcconfig.h"
# ifdef MSWIN32
# include <windows.h>
# endif
# ifdef PCR
# include "th/PCR_ThCrSec.h"
# include "th/PCR_Th.h"
# undef GC_printf0
# define GC_printf0 printf
# undef GC_printf1
# define GC_printf1 printf
# endif
# ifdef SOLARIS_THREADS
# include <thread.h>
# include <synch.h>
# endif
# if defined(IRIX_THREADS) || defined(LINUX_THREADS) || defined(HPUX_THREADS)
# include <pthread.h>
# endif
# ifdef WIN32_THREADS
# include <process.h>
static CRITICAL_SECTION incr_cs;
# endif
# ifdef AMIGA
long __stack = 200000;
# endif
# define FAIL (void)abort()
/* AT_END may be defined to excercise the interior pointer test */
/* if the collector is configured with ALL_INTERIOR_POINTERS. */
/* As it stands, this test should succeed with either */
/* configuration. In the FIND_LEAK configuration, it should */
/* find lots of leaks, since we free almost nothing. */
struct SEXPR {
struct SEXPR * sexpr_car;
struct SEXPR * sexpr_cdr;
};
typedef struct SEXPR * sexpr;
# define INT_TO_SEXPR(x) ((sexpr)(unsigned long)(x))
# undef nil
# define nil (INT_TO_SEXPR(0))
# define car(x) ((x) -> sexpr_car)
# define cdr(x) ((x) -> sexpr_cdr)
# define is_nil(x) ((x) == nil)
int extra_count = 0; /* Amount of space wasted in cons node */
/* Silly implementation of Lisp cons. Intentionally wastes lots of space */
/* to test collector. */
sexpr cons (x, y)
sexpr x;
sexpr y;
{
register sexpr r;
register int *p;
register int my_extra = extra_count;
r = (sexpr) GC_MALLOC_STUBBORN(sizeof(struct SEXPR) + my_extra);
if (r == 0) {
(void)GC_printf0("Out of memory\n");
exit(1);
}
for (p = (int *)r;
((char *)p) < ((char *)r) + my_extra + sizeof(struct SEXPR); p++) {
if (*p) {
(void)GC_printf1("Found nonzero at 0x%lx - allocator is broken\n",
(unsigned long)p);
FAIL;
}
*p = 13;
}
# ifdef AT_END
r = (sexpr)((char *)r + (my_extra & ~7));
# endif
r -> sexpr_car = x;
r -> sexpr_cdr = y;
my_extra++;
if ( my_extra >= 5000 ) {
extra_count = 0;
} else {
extra_count = my_extra;
}
GC_END_STUBBORN_CHANGE((char *)r);
return(r);
}
sexpr small_cons (x, y)
sexpr x;
sexpr y;
{
register sexpr r;
r = (sexpr) GC_MALLOC(sizeof(struct SEXPR));
if (r == 0) {
(void)GC_printf0("Out of memory\n");
exit(1);
}
r -> sexpr_car = x;
r -> sexpr_cdr = y;
return(r);
}
sexpr small_cons_uncollectable (x, y)
sexpr x;
sexpr y;
{
register sexpr r;
r = (sexpr) GC_MALLOC_UNCOLLECTABLE(sizeof(struct SEXPR));
if (r == 0) {
(void)GC_printf0("Out of memory\n");
exit(1);
}
r -> sexpr_car = x;
r -> sexpr_cdr = (sexpr)(~(unsigned long)y);
return(r);
}
#ifdef GC_GCJ_SUPPORT
#include "gc_mark.h"
#include "dbg_mlc.h"
#include "include/gc_gcj.h"
/* The following struct emulates the vtable in gcj. */
/* This assumes the default value of MARK_DESCR_OFFSET. */
struct fake_vtable {
void * dummy; /* class pointer in real gcj. */
size_t descr;
};
struct fake_vtable gcj_class_struct1 = { 0, sizeof(struct SEXPR)
+ sizeof(struct fake_vtable *) };
/* length based descriptor. */
struct fake_vtable gcj_class_struct2 =
{ 0, (3l << (CPP_WORDSZ - 3)) | DS_BITMAP};
/* Bitmap based descriptor. */
struct ms_entry * fake_gcj_mark_proc(word * addr,
struct ms_entry *mark_stack_ptr,
struct ms_entry *mark_stack_limit,
word env )
{
sexpr x;
if (1 == env) {
/* Object allocated with debug allocator. */
addr = (word *)USR_PTR_FROM_BASE(addr);
}
x = (sexpr)(addr + 1); /* Skip the vtable pointer. */
/* We could just call PUSH_CONTENTS directly here. But any real */
/* real client would try to filter out the obvious misses. */
if (0 != x -> sexpr_cdr) {
PUSH_CONTENTS((ptr_t)(x -> sexpr_cdr), mark_stack_ptr,
mark_stack_limit, &(x -> sexpr_cdr), exit1);
}
if ((ptr_t)(x -> sexpr_car) > GC_least_plausible_heap_addr) {
PUSH_CONTENTS((ptr_t)(x -> sexpr_car), mark_stack_ptr,
mark_stack_limit, &(x -> sexpr_car), exit2);
}
return(mark_stack_ptr);
}
sexpr gcj_cons(x, y)
sexpr x;
sexpr y;
{
GC_word * r;
sexpr result;
static int count = 0;
if (++count & 1) {
r = (GC_word *) GC_GCJ_FAST_MALLOC(3, &gcj_class_struct1);
} else {
r = (GC_word *) GC_GCJ_MALLOC(sizeof(struct SEXPR)
+ sizeof(struct fake_vtable*),
&gcj_class_struct2);
}
if (r == 0) {
(void)GC_printf0("Out of memory\n");
exit(1);
}
result = (sexpr)(r + 1);
result -> sexpr_car = x;
result -> sexpr_cdr = y;
return(result);
}
#endif
/* Return reverse(x) concatenated with y */
sexpr reverse1(x, y)
sexpr x, y;
{
if (is_nil(x)) {
return(y);
} else {
return( reverse1(cdr(x), cons(car(x), y)) );
}
}
sexpr reverse(x)
sexpr x;
{
return( reverse1(x, nil) );
}
sexpr ints(low, up)
int low, up;
{
if (low > up) {
return(nil);
} else {
return(small_cons(small_cons(INT_TO_SEXPR(low), nil), ints(low+1, up)));
}
}
#ifdef GC_GCJ_SUPPORT
/* Return reverse(x) concatenated with y */
sexpr gcj_reverse1(x, y)
sexpr x, y;
{
if (is_nil(x)) {
return(y);
} else {
return( gcj_reverse1(cdr(x), gcj_cons(car(x), y)) );
}
}
sexpr gcj_reverse(x)
sexpr x;
{
return( gcj_reverse1(x, nil) );
}
sexpr gcj_ints(low, up)
int low, up;
{
if (low > up) {
return(nil);
} else {
return(gcj_cons(gcj_cons(INT_TO_SEXPR(low), nil), gcj_ints(low+1, up)));
}
}
#endif /* GC_GCJ_SUPPORT */
/* To check uncollectable allocation we build lists with disguised cdr */
/* pointers, and make sure they don't go away. */
sexpr uncollectable_ints(low, up)
int low, up;
{
if (low > up) {
return(nil);
} else {
return(small_cons_uncollectable(small_cons(INT_TO_SEXPR(low), nil),
uncollectable_ints(low+1, up)));
}
}
void check_ints(list, low, up)
sexpr list;
int low, up;
{
if ((int)(GC_word)(car(car(list))) != low) {
(void)GC_printf0(
"List reversal produced incorrect list - collector is broken\n");
FAIL;
}
if (low == up) {
if (cdr(list) != nil) {
(void)GC_printf0("List too long - collector is broken\n");
FAIL;
}
} else {
check_ints(cdr(list), low+1, up);
}
}
# define UNCOLLECTABLE_CDR(x) (sexpr)(~(unsigned long)(cdr(x)))
void check_uncollectable_ints(list, low, up)
sexpr list;
int low, up;
{
assert(GC_is_marked(list));
if ((int)(GC_word)(car(car(list))) != low) {
(void)GC_printf0(
"Uncollectable list corrupted - collector is broken\n");
FAIL;
}
if (low == up) {
if (UNCOLLECTABLE_CDR(list) != nil) {
(void)GC_printf0("Uncollectable list too long - collector is broken\n");
FAIL;
}
} else {
check_uncollectable_ints(UNCOLLECTABLE_CDR(list), low+1, up);
}
}
/* Not used, but useful for debugging: */
void print_int_list(x)
sexpr x;
{
if (is_nil(x)) {
(void)GC_printf0("NIL\n");
} else {
(void)GC_printf1("(%ld)", (long)(car(car(x))));
if (!is_nil(cdr(x))) {
(void)GC_printf0(", ");
(void)print_int_list(cdr(x));
} else {
(void)GC_printf0("\n");
}
}
}
/* Try to force a to be strangely aligned */
struct {
char dummy;
sexpr aa;
} A;
#define a A.aa
/*
* A tiny list reversal test to check thread creation.
*/
#ifdef THREADS
# ifdef WIN32_THREADS
unsigned __stdcall tiny_reverse_test(void * arg)
# else
void * tiny_reverse_test(void * arg)
# endif
{
check_ints(reverse(reverse(ints(1,10))), 1, 10);
return 0;
}
# if defined(IRIX_THREADS) || defined(LINUX_THREADS) \
|| defined(SOLARIS_PTHREADS) || defined(HPUX_THREADS)
void fork_a_thread()
{
pthread_t t;
int code;
if ((code = pthread_create(&t, 0, tiny_reverse_test, 0)) != 0) {
(void)GC_printf1("Small thread creation failed %lu\n",
(unsigned long)code);
FAIL;
}
if ((code = pthread_join(t, 0)) != 0) {
(void)GC_printf1("Small thread join failed %lu\n",
(unsigned long)code);
FAIL;
}
}
# elif defined(WIN32_THREADS)
void fork_a_thread()
{
unsigned thread_id;
HANDLE h;
h = (HANDLE)_beginthreadex(NULL, 0, tiny_reverse_test,
0, 0, &thread_id);
if (h == (HANDLE)-1) {
(void)GC_printf1("Small thread creation failed %lu\n",
(unsigned long)GetLastError());
FAIL;
}
if (WaitForSingleObject(h, INFINITE) != WAIT_OBJECT_0) {
(void)GC_printf1("Small thread wait failed %lu\n",
(unsigned long)GetLastError());
FAIL;
}
}
/* # elif defined(SOLARIS_THREADS) */
# else
# define fork_a_thread()
# endif
#else
# define fork_a_thread()
#endif
/*
* Repeatedly reverse lists built out of very different sized cons cells.
* Check that we didn't lose anything.
*/
void reverse_test()
{
int i;
sexpr b;
sexpr c;
sexpr d;
sexpr e;
sexpr *f, *g, *h;
# if defined(MSWIN32) || defined(MACOS)
/* Win32S only allows 128K stacks */
# define BIG 1000
# else
# if defined PCR
/* PCR default stack is 100K. Stack frames are up to 120 bytes. */
# define BIG 700
# else
# define BIG 4500
# endif
# endif
A.dummy = 17;
a = ints(1, 49);
b = ints(1, 50);
c = ints(1, BIG);
d = uncollectable_ints(1, 100);
e = uncollectable_ints(1, 1);
/* Check that realloc updates object descriptors correctly */
f = (sexpr *)GC_MALLOC(4 * sizeof(sexpr));
f = (sexpr *)GC_REALLOC((GC_PTR)f, 6 * sizeof(sexpr));
f[5] = ints(1,17);
g = (sexpr *)GC_MALLOC(513 * sizeof(sexpr));
g = (sexpr *)GC_REALLOC((GC_PTR)g, 800 * sizeof(sexpr));
g[799] = ints(1,18);
h = (sexpr *)GC_MALLOC(1025 * sizeof(sexpr));
h = (sexpr *)GC_REALLOC((GC_PTR)h, 2000 * sizeof(sexpr));
# ifdef GC_GCJ_SUPPORT
h[1999] = gcj_ints(1,200);
h[1999] = gcj_reverse(h[1999]);
# else
h[1999] = ints(1,200);
# endif
/* Try to force some collections and reuse of small list elements */
for (i = 0; i < 10; i++) {
(void)ints(1, BIG);
}
/* Superficially test interior pointer recognition on stack */
c = (sexpr)((char *)c + sizeof(char *));
d = (sexpr)((char *)d + sizeof(char *));
# ifdef __STDC__
GC_FREE((void *)e);
# else
GC_FREE((char *)e);
# endif
check_ints(b,1,50);
check_ints(a,1,49);
for (i = 0; i < 50; i++) {
check_ints(b,1,50);
b = reverse(reverse(b));
}
check_ints(b,1,50);
check_ints(a,1,49);
for (i = 0; i < 60; i++) {
if (i % 10 == 0) fork_a_thread();
/* This maintains the invariant that a always points to a list of */
/* 49 integers. Thus this is thread safe without locks, */
/* assuming atomic pointer assignments. */
a = reverse(reverse(a));
# if !defined(AT_END) && !defined(THREADS)
/* This is not thread safe, since realloc explicitly deallocates */
if (i & 1) {
a = (sexpr)GC_REALLOC((GC_PTR)a, 500);
} else {
a = (sexpr)GC_REALLOC((GC_PTR)a, 8200);
}
# endif
}
check_ints(a,1,49);
check_ints(b,1,50);
c = (sexpr)((char *)c - sizeof(char *));
d = (sexpr)((char *)d - sizeof(char *));
check_ints(c,1,BIG);
check_uncollectable_ints(d, 1, 100);
check_ints(f[5], 1,17);
check_ints(g[799], 1,18);
# ifdef GC_GCJ_SUPPORT
h[1999] = gcj_reverse(h[1999]);
# endif
check_ints(h[1999], 1,200);
# ifndef THREADS
a = 0;
# endif
b = c = 0;
}
/*
* The rest of this builds balanced binary trees, checks that they don't
* disappear, and tests finalization.
*/
typedef struct treenode {
int level;
struct treenode * lchild;
struct treenode * rchild;
} tn;
int finalizable_count = 0;
int finalized_count = 0;
VOLATILE int dropped_something = 0;
# ifdef __STDC__
void finalizer(void * obj, void * client_data)
# else
void finalizer(obj, client_data)
char * obj;
char * client_data;
# endif
{
tn * t = (tn *)obj;
# ifdef PCR
PCR_ThCrSec_EnterSys();
# endif
# ifdef SOLARIS_THREADS
static mutex_t incr_lock;
mutex_lock(&incr_lock);
# endif
# if defined(IRIX_THREADS) || defined(LINUX_THREADS) || defined(HPUX_THREADS)
static pthread_mutex_t incr_lock = PTHREAD_MUTEX_INITIALIZER;
pthread_mutex_lock(&incr_lock);
# endif
# ifdef WIN32_THREADS
EnterCriticalSection(&incr_cs);
# endif
if ((int)(GC_word)client_data != t -> level) {
(void)GC_printf0("Wrong finalization data - collector is broken\n");
FAIL;
}
finalized_count++;
# ifdef PCR
PCR_ThCrSec_ExitSys();
# endif
# ifdef SOLARIS_THREADS
mutex_unlock(&incr_lock);
# endif
# if defined(IRIX_THREADS) || defined(LINUX_THREADS) || defined(HPUX_THREADS)
pthread_mutex_unlock(&incr_lock);
# endif
# ifdef WIN32_THREADS
LeaveCriticalSection(&incr_cs);
# endif
}
size_t counter = 0;
# define MAX_FINALIZED 8000
# if !defined(MACOS)
GC_FAR GC_word live_indicators[MAX_FINALIZED] = {0};
#else
/* Too big for THINK_C. have to allocate it dynamically. */
GC_word *live_indicators = 0;
#endif
int live_indicators_count = 0;
tn * mktree(n)
int n;
{
tn * result = (tn *)GC_MALLOC(sizeof(tn));
#if defined(MACOS)
/* get around static data limitations. */
if (!live_indicators)
live_indicators =
(GC_word*)NewPtrClear(MAX_FINALIZED * sizeof(GC_word));
if (!live_indicators) {
(void)GC_printf0("Out of memory\n");
exit(1);
}
#endif
if (n == 0) return(0);
if (result == 0) {
(void)GC_printf0("Out of memory\n");
exit(1);
}
result -> level = n;
result -> lchild = mktree(n-1);
result -> rchild = mktree(n-1);
if (counter++ % 17 == 0 && n >= 2) {
tn * tmp = result -> lchild -> rchild;
result -> lchild -> rchild = result -> rchild -> lchild;
result -> rchild -> lchild = tmp;
}
if (counter++ % 119 == 0) {
int my_index;
{
# ifdef PCR
PCR_ThCrSec_EnterSys();
# endif
# ifdef SOLARIS_THREADS
static mutex_t incr_lock;
mutex_lock(&incr_lock);
# endif
# if defined(IRIX_THREADS) || defined(LINUX_THREADS) \
|| defined(HPUX_THREADS)
static pthread_mutex_t incr_lock = PTHREAD_MUTEX_INITIALIZER;
pthread_mutex_lock(&incr_lock);
# endif
# ifdef WIN32_THREADS
EnterCriticalSection(&incr_cs);
# endif
/* Losing a count here causes erroneous report of failure. */
finalizable_count++;
my_index = live_indicators_count++;
# ifdef PCR
PCR_ThCrSec_ExitSys();
# endif
# ifdef SOLARIS_THREADS
mutex_unlock(&incr_lock);
# endif
# if defined(IRIX_THREADS) || defined(LINUX_THREADS) \
|| defined(HPUX_THREADS)
pthread_mutex_unlock(&incr_lock);
# endif
# ifdef WIN32_THREADS
LeaveCriticalSection(&incr_cs);
# endif
}
GC_REGISTER_FINALIZER((GC_PTR)result, finalizer, (GC_PTR)(GC_word)n,
(GC_finalization_proc *)0, (GC_PTR *)0);
if (my_index >= MAX_FINALIZED) {
GC_printf0("live_indicators overflowed\n");
FAIL;
}
live_indicators[my_index] = 13;
if (GC_GENERAL_REGISTER_DISAPPEARING_LINK(
(GC_PTR *)(&(live_indicators[my_index])),
(GC_PTR)result) != 0) {
GC_printf0("GC_general_register_disappearing_link failed\n");
FAIL;
}
if (GC_unregister_disappearing_link(
(GC_PTR *)
(&(live_indicators[my_index]))) == 0) {
GC_printf0("GC_unregister_disappearing_link failed\n");
FAIL;
}
if (GC_GENERAL_REGISTER_DISAPPEARING_LINK(
(GC_PTR *)(&(live_indicators[my_index])),
(GC_PTR)result) != 0) {
GC_printf0("GC_general_register_disappearing_link failed 2\n");
FAIL;
}
}
return(result);
}
void chktree(t,n)
tn *t;
int n;
{
if (n == 0 && t != 0) {
(void)GC_printf0("Clobbered a leaf - collector is broken\n");
FAIL;
}
if (n == 0) return;
if (t -> level != n) {
(void)GC_printf1("Lost a node at level %lu - collector is broken\n",
(unsigned long)n);
FAIL;
}
if (counter++ % 373 == 0) (void) GC_MALLOC(counter%5001);
chktree(t -> lchild, n-1);
if (counter++ % 73 == 0) (void) GC_MALLOC(counter%373);
chktree(t -> rchild, n-1);
}
# if defined(SOLARIS_THREADS) && !defined(_SOLARIS_PTHREADS)
thread_key_t fl_key;
void * alloc8bytes()
{
# if defined(SMALL_CONFIG) || defined(GC_DEBUG)
return(GC_MALLOC(8));
# else
void ** my_free_list_ptr;
void * my_free_list;
if (thr_getspecific(fl_key, (void **)(&my_free_list_ptr)) != 0) {
(void)GC_printf0("thr_getspecific failed\n");
FAIL;
}
if (my_free_list_ptr == 0) {
my_free_list_ptr = GC_NEW_UNCOLLECTABLE(void *);
if (thr_setspecific(fl_key, my_free_list_ptr) != 0) {
(void)GC_printf0("thr_setspecific failed\n");
FAIL;
}
}
my_free_list = *my_free_list_ptr;
if (my_free_list == 0) {
my_free_list = GC_malloc_many(8);
if (my_free_list == 0) {
(void)GC_printf0("alloc8bytes out of memory\n");
FAIL;
}
}
*my_free_list_ptr = GC_NEXT(my_free_list);
GC_NEXT(my_free_list) = 0;
return(my_free_list);
# endif
}
#else
# if defined(_SOLARIS_PTHREADS) || defined(IRIX_THREADS) \
|| defined(LINUX_THREADS) || defined(HPUX_THREADS)
pthread_key_t fl_key;
void * alloc8bytes()
{
# ifdef SMALL_CONFIG
return(GC_malloc(8));
# else
void ** my_free_list_ptr;
void * my_free_list;
my_free_list_ptr = (void **)pthread_getspecific(fl_key);
if (my_free_list_ptr == 0) {
my_free_list_ptr = GC_NEW_UNCOLLECTABLE(void *);
if (pthread_setspecific(fl_key, my_free_list_ptr) != 0) {
(void)GC_printf0("pthread_setspecific failed\n");
FAIL;
}
}
my_free_list = *my_free_list_ptr;
if (my_free_list == 0) {
my_free_list = GC_malloc_many(8);
if (my_free_list == 0) {
(void)GC_printf0("alloc8bytes out of memory\n");
FAIL;
}
}
*my_free_list_ptr = GC_NEXT(my_free_list);
GC_NEXT(my_free_list) = 0;
return(my_free_list);
# endif
}
# else
# define alloc8bytes() GC_MALLOC_ATOMIC(8)
# endif
#endif
void alloc_small(n)
int n;
{
register int i;
for (i = 0; i < n; i += 8) {
if (alloc8bytes() == 0) {
(void)GC_printf0("Out of memory\n");
FAIL;
}
}
}
# if defined(THREADS) && defined(GC_DEBUG)
# define TREE_HEIGHT 15
# else
# define TREE_HEIGHT 16
# endif
void tree_test()
{
tn * root;
register int i;
root = mktree(TREE_HEIGHT);
alloc_small(5000000);
chktree(root, TREE_HEIGHT);
if (finalized_count && ! dropped_something) {
(void)GC_printf0("Premature finalization - collector is broken\n");
FAIL;
}
dropped_something = 1;
GC_noop(root); /* Root needs to remain live until */
/* dropped_something is set. */
root = mktree(TREE_HEIGHT);
chktree(root, TREE_HEIGHT);
for (i = TREE_HEIGHT; i >= 0; i--) {
root = mktree(i);
chktree(root, i);
}
alloc_small(5000000);
}
unsigned n_tests = 0;
GC_word bm_huge[10] = {
0xffffffff,
0xffffffff,
0xffffffff,
0xffffffff,
0xffffffff,
0xffffffff,
0xffffffff,
0xffffffff,
0xffffffff,
0x00ffffff,
};
/* A very simple test of explicitly typed allocation */
void typed_test()
{
GC_word * old, * new;
GC_word bm3 = 0x3;
GC_word bm2 = 0x2;
GC_word bm_large = 0xf7ff7fff;
GC_descr d1 = GC_make_descriptor(&bm3, 2);
GC_descr d2 = GC_make_descriptor(&bm2, 2);
# ifndef LINT
GC_descr dummy = GC_make_descriptor(&bm_large, 32);
# endif
GC_descr d3 = GC_make_descriptor(&bm_large, 32);
GC_descr d4 = GC_make_descriptor(bm_huge, 320);
GC_word * x = (GC_word *)GC_malloc_explicitly_typed(2000, d4);
register int i;
old = 0;
for (i = 0; i < 4000; i++) {
new = (GC_word *) GC_malloc_explicitly_typed(4 * sizeof(GC_word), d1);
if (0 != new[0] || 0 != new[1]) {
GC_printf0("Bad initialization by GC_malloc_explicitly_typed\n");
FAIL;
}
new[0] = 17;
new[1] = (GC_word)old;
old = new;
new = (GC_word *) GC_malloc_explicitly_typed(4 * sizeof(GC_word), d2);
new[0] = 17;
new[1] = (GC_word)old;
old = new;
new = (GC_word *) GC_malloc_explicitly_typed(33 * sizeof(GC_word), d3);
new[0] = 17;
new[1] = (GC_word)old;
old = new;
new = (GC_word *) GC_calloc_explicitly_typed(4, 2 * sizeof(GC_word),
d1);
new[0] = 17;
new[1] = (GC_word)old;
old = new;
if (i & 0xff) {
new = (GC_word *) GC_calloc_explicitly_typed(7, 3 * sizeof(GC_word),
d2);
} else {
new = (GC_word *) GC_calloc_explicitly_typed(1001,
3 * sizeof(GC_word),
d2);
if (0 != new[0] || 0 != new[1]) {
GC_printf0("Bad initialization by GC_malloc_explicitly_typed\n");
FAIL;
}
}
new[0] = 17;
new[1] = (GC_word)old;
old = new;
}
for (i = 0; i < 20000; i++) {
if (new[0] != 17) {
(void)GC_printf1("typed alloc failed at %lu\n",
(unsigned long)i);
FAIL;
}
new[0] = 0;
old = new;
new = (GC_word *)(old[1]);
}
GC_gcollect();
GC_noop(x);
}
int fail_count = 0;
#ifndef __STDC__
/*ARGSUSED*/
void fail_proc1(x)
GC_PTR x;
{
fail_count++;
}
#else
/*ARGSUSED*/
void fail_proc1(GC_PTR x)
{
fail_count++;
}
#endif /* __STDC__ */
#ifdef THREADS
# define TEST_FAIL_COUNT(n) 1
#else
# define TEST_FAIL_COUNT(n) (fail_count >= (n))
#endif
void run_one_test()
{
char *x;
# ifdef LINT
char *y = 0;
# else
char *y = (char *)(size_t)fail_proc1;
# endif
DCL_LOCK_STATE;
# ifdef FIND_LEAK
(void)GC_printf0(
"This test program is not designed for leak detection mode\n");
(void)GC_printf0("Expect lots of problems.\n");
# endif
if (GC_size(GC_malloc(7)) != 8 &&
GC_size(GC_malloc(7)) != MIN_WORDS * sizeof(GC_word)
|| GC_size(GC_malloc(15)) != 16) {
(void)GC_printf0("GC_size produced unexpected results\n");
FAIL;
}
if (GC_size(GC_malloc(0)) != MIN_WORDS * sizeof(GC_word)) {
(void)GC_printf0("GC_malloc(0) failed\n");
FAIL;
}
if (GC_size(GC_malloc_uncollectable(0)) != MIN_WORDS * sizeof(GC_word)) {
(void)GC_printf0("GC_malloc_uncollectable(0) failed\n");
FAIL;
}
GC_FREE(0);
GC_is_valid_displacement_print_proc = fail_proc1;
GC_is_visible_print_proc = fail_proc1;
x = GC_malloc(16);
if (GC_base(x + 13) != x) {
(void)GC_printf0("GC_base(heap ptr) produced incorrect result\n");
FAIL;
}
# ifndef PCR
if (GC_base(y) != 0) {
(void)GC_printf0("GC_base(fn_ptr) produced incorrect result\n");
FAIL;
}
# endif
if (GC_same_obj(x+5, x) != x + 5) {
(void)GC_printf0("GC_same_obj produced incorrect result\n");
FAIL;
}
if (GC_is_visible(y) != y || GC_is_visible(x) != x) {
(void)GC_printf0("GC_is_visible produced incorrect result\n");
FAIL;
}
if (!TEST_FAIL_COUNT(1)) {
# if!(defined(RS6000) || defined(POWERPC) || defined(IA64))
/* ON RS6000s function pointers point to a descriptor in the */
/* data segment, so there should have been no failures. */
(void)GC_printf0("GC_is_visible produced wrong failure indication\n");
FAIL;
# endif
}
if (GC_is_valid_displacement(y) != y
|| GC_is_valid_displacement(x) != x
|| GC_is_valid_displacement(x + 3) != x + 3) {
(void)GC_printf0(
"GC_is_valid_displacement produced incorrect result\n");
FAIL;
}
# ifndef ALL_INTERIOR_POINTERS
# if defined(RS6000) || defined(POWERPC)
if (!TEST_FAIL_COUNT(1)) {
# else
if (!TEST_FAIL_COUNT(2)) {
# endif
(void)GC_printf0("GC_is_valid_displacement produced wrong failure indication\n");
FAIL;
}
# endif
/* Test floating point alignment */
*(double *)GC_MALLOC(sizeof(double)) = 1.0;
*(double *)GC_MALLOC(sizeof(double)) = 1.0;
# ifdef GC_GCJ_SUPPORT
GC_REGISTER_DISPLACEMENT(sizeof(struct fake_vtable *));
GC_init_gcj_malloc(0, (void *)fake_gcj_mark_proc);
# endif
/* Repeated list reversal test. */
reverse_test();
# ifdef PRINTSTATS
GC_printf0("-------------Finished reverse_test\n");
# endif
typed_test();
# ifdef PRINTSTATS
GC_printf0("-------------Finished typed_test\n");
# endif
tree_test();
LOCK();
n_tests++;
UNLOCK();
/* GC_printf1("Finished %x\n", pthread_self()); */
}
void check_heap_stats()
{
unsigned long max_heap_sz;
register int i;
int still_live;
int late_finalize_count = 0;
if (sizeof(char *) > 4) {
max_heap_sz = 15000000;
} else {
max_heap_sz = 11000000;
}
# ifdef GC_DEBUG
max_heap_sz *= 2;
# ifdef SPARC
max_heap_sz *= 2;
# endif
# endif
/* Garbage collect repeatedly so that all inaccessible objects */
/* can be finalized. */
while (GC_collect_a_little()) { }
for (i = 0; i < 16; i++) {
GC_gcollect();
late_finalize_count += GC_invoke_finalizers();
}
(void)GC_printf1("Completed %lu tests\n", (unsigned long)n_tests);
(void)GC_printf2("Finalized %lu/%lu objects - ",
(unsigned long)finalized_count,
(unsigned long)finalizable_count);
# ifdef FINALIZE_ON_DEMAND
if (finalized_count != late_finalize_count) {
(void)GC_printf0("Demand finalization error\n");
FAIL;
}
# endif
if (finalized_count > finalizable_count
|| finalized_count < finalizable_count/2) {
(void)GC_printf0("finalization is probably broken\n");
FAIL;
} else {
(void)GC_printf0("finalization is probably ok\n");
}
still_live = 0;
for (i = 0; i < MAX_FINALIZED; i++) {
if (live_indicators[i] != 0) {
still_live++;
}
}
i = finalizable_count - finalized_count - still_live;
if (0 != i) {
(void)GC_printf2
("%lu disappearing links remain and %lu more objects were not finalized\n",
(unsigned long) still_live, (unsigned long)i);
if (i > 10) {
GC_printf0("\tVery suspicious!\n");
} else {
GC_printf0("\tSlightly suspicious, but probably OK.\n");
}
}
(void)GC_printf1("Total number of bytes allocated is %lu\n",
(unsigned long)
WORDS_TO_BYTES(GC_words_allocd + GC_words_allocd_before_gc));
(void)GC_printf1("Final heap size is %lu bytes\n",
(unsigned long)GC_get_heap_size());
if (WORDS_TO_BYTES(GC_words_allocd + GC_words_allocd_before_gc)
< 33500000*n_tests) {
(void)GC_printf0("Incorrect execution - missed some allocations\n");
FAIL;
}
if (GC_get_heap_size() > max_heap_sz*n_tests) {
(void)GC_printf0("Unexpected heap growth - collector may be broken\n");
FAIL;
}
(void)GC_printf0("Collector appears to work\n");
}
#if defined(MACOS)
void SetMinimumStack(long minSize)
{
long newApplLimit;
if (minSize > LMGetDefltStack())
{
newApplLimit = (long) GetApplLimit()
- (minSize - LMGetDefltStack());
SetApplLimit((Ptr) newApplLimit);
MaxApplZone();
}
}
#define cMinStackSpace (512L * 1024L)
#endif
#ifdef __STDC__
void warn_proc(char *msg, GC_word p)
#else
void warn_proc(msg, p)
char *msg;
GC_word p;
#endif
{
GC_printf1(msg, (unsigned long)p);
FAIL;
}
#if !defined(PCR) && !defined(SOLARIS_THREADS) && !defined(WIN32_THREADS) \
&& !defined(IRIX_THREADS) && !defined(LINUX_THREADS) \
&& !defined(HPUX_THREADS) || defined(LINT)
#if defined(MSWIN32) && !defined(__MINGW32__)
int APIENTRY WinMain(HINSTANCE instance, HINSTANCE prev, LPSTR cmd, int n)
#else
int main()
#endif
{
# if defined(DJGPP)
int dummy;
# endif
n_tests = 0;
# if defined(DJGPP)
/* No good way to determine stack base from library; do it */
/* manually on this platform. */
GC_stackbottom = (GC_PTR)(&dummy);
# endif
# if defined(MACOS)
/* Make sure we have lots and lots of stack space. */
SetMinimumStack(cMinStackSpace);
/* Cheat and let stdio initialize toolbox for us. */
printf("Testing GC Macintosh port.\n");
# endif
GC_INIT(); /* Only needed if gc is dynamic library. */
(void) GC_set_warn_proc(warn_proc);
# if defined(MPROTECT_VDB) || defined(PROC_VDB)
GC_enable_incremental();
(void) GC_printf0("Switched to incremental mode\n");
# if defined(MPROTECT_VDB)
(void)GC_printf0("Emulating dirty bits with mprotect/signals\n");
# else
(void)GC_printf0("Reading dirty bits from /proc\n");
# endif
# endif
run_one_test();
check_heap_stats();
(void)fflush(stdout);
# ifdef LINT
/* Entry points we should be testing, but aren't. */
/* Some can be tested by defining GC_DEBUG at the top of this file */
/* This is a bit SunOS4 specific. */
GC_noop(GC_expand_hp, GC_add_roots, GC_clear_roots,
GC_register_disappearing_link,
GC_register_finalizer_ignore_self,
GC_debug_register_displacement,
GC_print_obj, GC_debug_change_stubborn,
GC_debug_end_stubborn_change, GC_debug_malloc_uncollectable,
GC_debug_free, GC_debug_realloc, GC_generic_malloc_words_small,
GC_init, GC_make_closure, GC_debug_invoke_finalizer,
GC_page_was_ever_dirty, GC_is_fresh,
GC_malloc_ignore_off_page, GC_malloc_atomic_ignore_off_page,
GC_set_max_heap_size, GC_get_bytes_since_gc,
GC_pre_incr, GC_post_incr);
# endif
# ifdef MSWIN32
GC_win32_free_heap();
# endif
return(0);
}
# endif
#ifdef WIN32_THREADS
unsigned __stdcall thr_run_one_test(void *arg)
{
run_one_test();
return 0;
}
#define NTEST 2
int APIENTRY WinMain(HINSTANCE instance, HINSTANCE prev, LPSTR cmd, int n)
{
# if NTEST > 0
HANDLE h[NTEST];
# endif
int i;
unsigned thread_id;
# if 0
GC_enable_incremental();
# endif
InitializeCriticalSection(&incr_cs);
(void) GC_set_warn_proc(warn_proc);
# if NTEST > 0
for (i = 0; i < NTEST; i++) {
h[i] = (HANDLE)_beginthreadex(NULL, 0, thr_run_one_test, 0, 0, &thread_id);
if (h[i] == (HANDLE)-1) {
(void)GC_printf1("Thread creation failed %lu\n", (unsigned long)GetLastError());
FAIL;
}
}
# endif /* NTEST > 0 */
run_one_test();
# if NTEST > 0
for (i = 0; i < NTEST; i++) {
if (WaitForSingleObject(h[i], INFINITE) != WAIT_OBJECT_0) {
(void)GC_printf1("Thread wait failed %lu\n", (unsigned long)GetLastError());
FAIL;
}
}
# endif /* NTEST > 0 */
check_heap_stats();
(void)fflush(stdout);
return(0);
}
#endif /* WIN32_THREADS */
#ifdef PCR
test()
{
PCR_Th_T * th1;
PCR_Th_T * th2;
int code;
n_tests = 0;
/* GC_enable_incremental(); */
(void) GC_set_warn_proc(warn_proc);
th1 = PCR_Th_Fork(run_one_test, 0);
th2 = PCR_Th_Fork(run_one_test, 0);
run_one_test();
if (PCR_Th_T_Join(th1, &code, NIL, PCR_allSigsBlocked, PCR_waitForever)
!= PCR_ERes_okay || code != 0) {
(void)GC_printf0("Thread 1 failed\n");
}
if (PCR_Th_T_Join(th2, &code, NIL, PCR_allSigsBlocked, PCR_waitForever)
!= PCR_ERes_okay || code != 0) {
(void)GC_printf0("Thread 2 failed\n");
}
check_heap_stats();
(void)fflush(stdout);
return(0);
}
#endif
#if defined(SOLARIS_THREADS) || defined(IRIX_THREADS) \
|| defined(HPUX_THREADS) || defined(LINUX_THREADS)
void * thr_run_one_test(void * arg)
{
run_one_test();
return(0);
}
#ifdef GC_DEBUG
# define GC_free GC_debug_free
#endif
#ifdef SOLARIS_THREADS
main()
{
thread_t th1;
thread_t th2;
int code;
n_tests = 0;
GC_INIT(); /* Only needed if gc is dynamic library. */
GC_enable_incremental();
(void) GC_set_warn_proc(warn_proc);
if (thr_keycreate(&fl_key, GC_free) != 0) {
(void)GC_printf1("Key creation failed %lu\n", (unsigned long)code);
FAIL;
}
if ((code = thr_create(0, 1024*1024, thr_run_one_test, 0, 0, &th1)) != 0) {
(void)GC_printf1("Thread 1 creation failed %lu\n", (unsigned long)code);
FAIL;
}
if ((code = thr_create(0, 1024*1024, thr_run_one_test, 0, THR_NEW_LWP, &th2)) != 0) {
(void)GC_printf1("Thread 2 creation failed %lu\n", (unsigned long)code);
FAIL;
}
run_one_test();
if ((code = thr_join(th1, 0, 0)) != 0) {
(void)GC_printf1("Thread 1 failed %lu\n", (unsigned long)code);
FAIL;
}
if (thr_join(th2, 0, 0) != 0) {
(void)GC_printf1("Thread 2 failed %lu\n", (unsigned long)code);
FAIL;
}
check_heap_stats();
(void)fflush(stdout);
return(0);
}
#else /* pthreads */
main()
{
pthread_t th1;
pthread_t th2;
pthread_attr_t attr;
int code;
# ifdef IRIX_THREADS
/* Force a larger stack to be preallocated */
/* Since the initial cant always grow later. */
*((volatile char *)&code - 1024*1024) = 0; /* Require 1 Mb */
# endif /* IRIX_THREADS */
pthread_attr_init(&attr);
# if defined(IRIX_THREADS) || defined(HPUX_THREADS)
pthread_attr_setstacksize(&attr, 1000000);
# endif
n_tests = 0;
# ifdef MPROTECT_VDB
GC_enable_incremental();
(void) GC_printf0("Switched to incremental mode\n");
(void) GC_printf0("Emulating dirty bits with mprotect/signals\n");
# endif
(void) GC_set_warn_proc(warn_proc);
if ((code = pthread_key_create(&fl_key, 0)) != 0) {
(void)GC_printf1("Key creation failed %lu\n", (unsigned long)code);
FAIL;
}
if ((code = pthread_create(&th1, &attr, thr_run_one_test, 0)) != 0) {
(void)GC_printf1("Thread 1 creation failed %lu\n", (unsigned long)code);
FAIL;
}
if ((code = pthread_create(&th2, &attr, thr_run_one_test, 0)) != 0) {
(void)GC_printf1("Thread 2 creation failed %lu\n", (unsigned long)code);
FAIL;
}
run_one_test();
if ((code = pthread_join(th1, 0)) != 0) {
(void)GC_printf1("Thread 1 failed %lu\n", (unsigned long)code);
FAIL;
}
if (pthread_join(th2, 0) != 0) {
(void)GC_printf1("Thread 2 failed %lu\n", (unsigned long)code);
FAIL;
}
check_heap_stats();
(void)fflush(stdout);
pthread_attr_destroy(&attr);
GC_printf1("Completed %d collections\n", GC_gc_no);
return(0);
}
#endif /* pthreads */
#endif /* SOLARIS_THREADS || IRIX_THREADS || LINUX_THREADS || HPUX_THREADS */
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