// Compile code in boot image so that we can execute the startup quotation
// Allocates memory
void factor_vm::prepare_boot_image() {
std::cout << "*** Stage 2 early init... " << std::flush;
// Compile all words.
data_root<array> words(instances(WORD_TYPE), this);
cell n_words = array_capacity(words.untagged());
for (cell i = 0; i < n_words; i++) {
data_root<word> word(array_nth(words.untagged(), i), this);
FACTOR_ASSERT(!word->entry_point);
jit_compile_word(word.value(), word->def, false);
}
update_code_heap_words(true);
// Initialize all quotations
data_root<array> quotations(instances(QUOTATION_TYPE), this);
cell n_quots = array_capacity(quotations.untagged());
for (cell i = 0; i < n_quots; i++) {
data_root<quotation> quot(array_nth(quotations.untagged(), i), this);
if (!quot->entry_point)
quot->entry_point = lazy_jit_compile_entry_point();
}
special_objects[OBJ_STAGE2] = special_objects[OBJ_CANONICAL_TRUE];
std::cout << "done" << std::endl;
}
/* Allocates memory */
void factor_vm::set_profiling(bool profiling)
{
if(profiling == profiling_p)
return;
profiling_p = profiling;
/* Push everything to tenured space so that we can heap scan
and allocate profiling blocks if necessary */
gc();
gc_root<array> words(find_all_words(),this);
cell i;
cell length = array_capacity(words.untagged());
for(i = 0; i < length; i++)
{
tagged<word> word(array_nth(words.untagged(),i));
if(profiling)
word->counter = tag_fixnum(0);
update_word_xt(word.value());
}
update_code_heap_words();
}
void factor_vm::primitive_modify_code_heap()
{
bool reset_inline_caches = to_boolean(ctx->pop());
bool update_existing_words = to_boolean(ctx->pop());
data_root<array> alist(ctx->pop(),this);
cell count = array_capacity(alist.untagged());
if(count == 0)
return;
for(cell i = 0; i < count; i++)
{
data_root<array> pair(array_nth(alist.untagged(),i),this);
data_root<word> word(array_nth(pair.untagged(),0),this);
data_root<object> data(array_nth(pair.untagged(),1),this);
switch(data.type())
{
case QUOTATION_TYPE:
jit_compile_word(word.value(),data.value(),false);
break;
case ARRAY_TYPE:
{
array *compiled_data = data.as<array>().untagged();
cell parameters = array_nth(compiled_data,0);
cell literals = array_nth(compiled_data,1);
cell relocation = array_nth(compiled_data,2);
cell labels = array_nth(compiled_data,3);
cell code = array_nth(compiled_data,4);
code_block *compiled = add_code_block(
code_block_optimized,
code,
labels,
word.value(),
relocation,
parameters,
literals);
word->code = compiled;
}
break;
default:
critical_error("Expected a quotation or an array",data.value());
break;
}
update_word_entry_point(word.untagged());
}
if(update_existing_words)
update_code_heap_words(reset_inline_caches);
else
initialize_code_blocks();
}
/* Allocates memory */
void factor_vm::prepare_boot_image() {
std::cout << "*** Stage 2 early init... " << std::flush;
compile_all_words();
update_code_heap_words(true);
initialize_all_quotations();
special_objects[OBJ_STAGE2] = true_object;
std::cout << "done" << std::endl;
}
void factor_vm::primitive_modify_code_heap()
{
gc_root<array> alist(dpop(),this);
cell count = array_capacity(alist.untagged());
if(count == 0)
return;
cell i;
for(i = 0; i < count; i++)
{
gc_root<array> pair(array_nth(alist.untagged(),i),this);
gc_root<word> word(array_nth(pair.untagged(),0),this);
gc_root<object> data(array_nth(pair.untagged(),1),this);
switch(data.type())
{
case QUOTATION_TYPE:
jit_compile_word(word.value(),data.value(),false);
break;
case ARRAY_TYPE:
{
array *compiled_data = data.as<array>().untagged();
cell owner = array_nth(compiled_data,0);
cell literals = array_nth(compiled_data,1);
cell relocation = array_nth(compiled_data,2);
cell labels = array_nth(compiled_data,3);
cell code = array_nth(compiled_data,4);
code_block *compiled = add_code_block(
WORD_TYPE,
code,
labels,
owner,
relocation,
literals);
word->code = compiled;
}
break;
default:
critical_error("Expected a quotation or an array",data.value());
break;
}
update_word_xt(word.value());
}
update_code_heap_words();
}