int main(void)
{
GC_INIT();
GC_set_max_heap_size(100*1024*1024);
/* Otherwise heap expansion aborts when deallocating large block. */
/* That's OK. We test this corner case mostly to make sure that */
/* it fails predictably. */
GC_expand_hp(1024*1024*5);
if (sizeof(long) == sizeof(void *)) {
void *r = GC_MALLOC(LONG_MAX-1024);
if (0 != r) {
fprintf(stderr,
"Size LONG_MAX-1024 allocation unexpectedly succeeded\n");
exit(1);
}
r = GC_MALLOC(LONG_MAX);
if (0 != r) {
fprintf(stderr,
"Size LONG_MAX allocation unexpectedly succeeded\n");
exit(1);
}
r = GC_MALLOC((size_t)LONG_MAX + 1024);
if (0 != r) {
fprintf(stderr,
"Size LONG_MAX+1024 allocation unexpectedly succeeded\n");
exit(1);
}
}
return 0;
}
jboolean initGC(Options* options) {
GC_set_no_dls(1);
GC_set_java_finalization(1);
GC_INIT();
if (options->maxHeapSize > 0) {
GC_set_max_heap_size(options->maxHeapSize);
}
if (options->initialHeapSize > 0) {
size_t now = GC_get_heap_size();
if (options->initialHeapSize > now) {
GC_expand_hp(options->initialHeapSize - now);
}
}
objectGCKind = GC_new_kind(GC_new_free_list(), GC_MAKE_PROC(GC_new_proc(markObject), 0), 0, 1);
largeArrayGCKind = GC_new_kind(GC_new_free_list(), GC_DS_LENGTH, 1, 1);
atomicObjectGCKind = GC_new_kind(GC_new_free_list(), GC_DS_LENGTH, 0, 1);
referentEntryGCKind = gcNewDirectBitmapKind(REFERENT_ENTRY_GC_BITMAP);
if (rvmInitMutex(&referentsLock) != 0) {
return FALSE;
}
if (rvmInitMutex(&gcRootsLock) != 0) {
return FALSE;
}
GC_set_warn_proc(gcWarnProc);
return TRUE;
}
void InitBags(UInt initial_size,
Bag * stack_bottom,
UInt stack_align)
{
UInt i; /* loop variable */
/* install the marking functions */
for (i = 0; i < NUM_TYPES; i++) {
TabMarkTypeBags[i] = -1;
}
#ifndef DISABLE_GC
#ifdef HPCGAP
if (!getenv("GC_MARKERS")) {
/* The Boehm GC does not have an API to set the number of
* markers for the parallel mark and sweep implementation,
* so we use the documented environment variable GC_MARKERS
* instead. However, we do not override it if it's already
* set.
*/
static char marker_env_str[32];
unsigned num_markers = 2;
if (!SyNumGCThreads)
SyNumGCThreads = SyNumProcessors;
if (SyNumGCThreads) {
if (SyNumGCThreads <= MAX_GC_THREADS)
num_markers = (unsigned)SyNumProcessors;
else
num_markers = MAX_GC_THREADS;
}
sprintf(marker_env_str, "GC_MARKERS=%u", num_markers);
putenv(marker_env_str);
}
#endif
GC_set_all_interior_pointers(0);
GC_init();
GC_set_free_space_divisor(1);
TLAllocatorInit();
GC_register_displacement(0);
GC_register_displacement(sizeof(BagHeader));
initial_size *= 1024;
if (GC_get_heap_size() < initial_size)
GC_expand_hp(initial_size - GC_get_heap_size());
if (SyStorKill)
GC_set_max_heap_size(SyStorKill * 1024);
#ifdef HPCGAP
AddGCRoots();
CreateMainRegion();
#else
void * p = ActiveGAPState();
GC_add_roots(p, (char *)p + sizeof(GAPState));
#endif
for (i = 0; i <= MAX_GC_PREFIX_DESC; i++) {
BuildPrefixGCDescriptor(i);
/* This is necessary to initialize some internal structures
* in the garbage collector: */
GC_generic_malloc(sizeof(BagHeader) + i * sizeof(Bag), GCMKind[i]);
}
#endif /* DISABLE_GC */
}
jboolean initGC(Options* options) {
GC_INIT();
GC_set_java_finalization(1);
if (options->maxHeapSize > 0) {
GC_set_max_heap_size(options->maxHeapSize);
}
if (options->initialHeapSize > 0) {
size_t now = GC_get_heap_size();
if (options->initialHeapSize > now) {
GC_expand_hp(options->initialHeapSize - now);
}
}
object_gc_kind = GC_new_kind(GC_new_free_list(), GC_MAKE_PROC(GC_new_proc(markObject), 0), 0, 1);
if (rvmInitMutex(&referentsLock) != 0) {
return FALSE;
}
return TRUE;
}
