67 lines
1.3 KiB
C++
Executable File
67 lines
1.3 KiB
C++
Executable File
#include "master.hpp"
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namespace factor
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{
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void factor_vm::init_profiler()
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{
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profiling_p = false;
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}
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/* Allocates memory */
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code_block *factor_vm::compile_profiling_stub(cell word_)
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{
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data_root<word> word(word_,this);
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jit jit(code_block_profiling,word.value(),this);
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jit.emit_with_literal(special_objects[JIT_PROFILING],word.value());
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return jit.to_code_block();
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}
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/* Allocates memory */
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void factor_vm::set_profiling(bool profiling)
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{
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if(profiling == profiling_p)
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return;
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/* Push everything to tenured space so that we can heap scan
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and allocate profiling blocks if necessary */
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primitive_full_gc();
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data_root<array> words(find_all_words(),this);
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profiling_p = profiling;
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cell length = array_capacity(words.untagged());
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for(cell i = 0; i < length; i++)
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{
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tagged<word> word(array_nth(words.untagged(),i));
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/* Note: can't do w->profiling = ... since LHS evaluates
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before RHS, and if RHS does a GC, we will have an
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invalid pointer on the LHS */
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if(profiling)
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{
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if(!word->profiling)
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{
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code_block *profiling_block = compile_profiling_stub(word.value());
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word->profiling = profiling_block;
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}
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word->counter = tag_fixnum(0);
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}
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update_word_entry_point(word.untagged());
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}
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update_code_heap_words(false);
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}
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void factor_vm::primitive_profiling()
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{
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set_profiling(to_boolean(ctx->pop()));
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}
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}
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