/* * 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 # endif # include # include /* 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 # 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 # include # endif # if defined(IRIX_THREADS) || defined(LINUX_THREADS) || defined(HPUX_THREADS) # include # endif # ifdef WIN32_THREADS # include 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(15)) != 16) { (void)GC_printf0("GC_size produced unexpected results\n"); FAIL; } if (GC_size(GC_malloc(0)) != 4 && GC_size(GC_malloc(0)) != 8) { (void)GC_printf0("GC_malloc(0) failed\n"); FAIL; } if (GC_size(GC_malloc_uncollectable(0)) != 4 && GC_size(GC_malloc_uncollectable(0)) != 8) { (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 */