87 lines
1.8 KiB
C
Executable File
87 lines
1.8 KiB
C
Executable File
#include "master.h"
|
|
|
|
/* Allocates memory */
|
|
F_COMPILED *compile_profiling_stub(F_WORD *word)
|
|
{
|
|
CELL literals = allot_array_1(tag_object(word));
|
|
REGISTER_ROOT(literals);
|
|
|
|
F_ARRAY *quadruple = untag_object(userenv[JIT_PROFILING]);
|
|
|
|
CELL code = array_nth(quadruple,0);
|
|
REGISTER_ROOT(code);
|
|
|
|
F_REL rel;
|
|
rel.type = to_fixnum(array_nth(quadruple,2)) | (to_fixnum(array_nth(quadruple,1)) << 8);
|
|
rel.offset = to_fixnum(array_nth(quadruple,3)) * compiled_code_format();
|
|
|
|
F_BYTE_ARRAY *relocation = allot_byte_array(sizeof(F_REL));
|
|
memcpy((void *)BREF(relocation,0),&rel,sizeof(F_REL));
|
|
|
|
UNREGISTER_ROOT(code);
|
|
UNREGISTER_ROOT(literals);
|
|
|
|
return add_compiled_block(
|
|
WORD_TYPE,
|
|
untag_object(code),
|
|
NULL, /* no labels */
|
|
tag_object(relocation),
|
|
untag_object(literals));
|
|
}
|
|
|
|
/* Allocates memory */
|
|
void update_word_xt(F_WORD *word)
|
|
{
|
|
/* If we just enabled the profiler, reset call count */
|
|
if(profiling_p)
|
|
{
|
|
if(!word->profiling)
|
|
{
|
|
REGISTER_UNTAGGED(word);
|
|
F_COMPILED *profiling = compile_profiling_stub(word);
|
|
UNREGISTER_UNTAGGED(word);
|
|
word->profiling = profiling;
|
|
}
|
|
|
|
word->xt = (XT)(word->profiling + 1);
|
|
}
|
|
else
|
|
word->xt = (XT)(word->code + 1);
|
|
}
|
|
|
|
void 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();
|
|
|
|
CELL words = find_all_words();
|
|
|
|
REGISTER_ROOT(words);
|
|
|
|
CELL i;
|
|
CELL length = array_capacity(untag_object(words));
|
|
for(i = 0; i < length; i++)
|
|
{
|
|
F_WORD *word = untag_word(array_nth(untag_array(words),i));
|
|
if(profiling)
|
|
word->counter = tag_fixnum(0);
|
|
update_word_xt(word);
|
|
}
|
|
|
|
UNREGISTER_ROOT(words);
|
|
|
|
/* Update XTs in code heap */
|
|
iterate_code_heap(relocate_code_block);
|
|
}
|
|
|
|
DEFINE_PRIMITIVE(profiling)
|
|
{
|
|
set_profiling(to_boolean(dpop()));
|
|
}
|