diff options
Diffstat (limited to 'yjit.c')
| -rw-r--r-- | yjit.c | 91 |
1 files changed, 91 insertions, 0 deletions
@@ -25,6 +25,7 @@ #include "probes.h" #include "probes_helper.h" #include "iseq.h" +#include "ruby/debug.h" // For mmapp(), sysconf() #ifndef _WIN32 @@ -83,6 +84,94 @@ rb_yjit_mark_executable(void *mem_block, uint32_t mem_size) } } +# define PTR2NUM(x) (rb_int2inum((intptr_t)(void *)(x))) + +// For a given raw_sample (frame), set the hash with the caller's +// name, file, and line number. Return the hash with collected frame_info. +static void +rb_yjit_add_frame(VALUE hash, VALUE frame) +{ + VALUE frame_id = PTR2NUM(frame); + + if (RTEST(rb_hash_aref(hash, frame_id))) { + return; + } else { + VALUE frame_info = rb_hash_new(); + // Full label for the frame + VALUE name = rb_profile_frame_full_label(frame); + // Absolute path of the frame from rb_iseq_realpath + VALUE file = rb_profile_frame_absolute_path(frame); + // Line number of the frame + VALUE line = rb_profile_frame_first_lineno(frame); + + // If absolute path isn't available use the rb_iseq_path + if (NIL_P(file)) { + file = rb_profile_frame_path(frame); + } + + rb_hash_aset(frame_info, ID2SYM(rb_intern("name")), name); + rb_hash_aset(frame_info, ID2SYM(rb_intern("file")), file); + + if (line != INT2FIX(0)) { + rb_hash_aset(frame_info, ID2SYM(rb_intern("line")), line); + } + + rb_hash_aset(hash, frame_id, frame_info); + } +} + +// Parses the YjitExtiLocations raw_samples and line_samples collected by +// rb_yjit_record_exit_stack and turns them into 3 hashes (raw, lines, and frames) to +// be used by RubyVM::YJIT.exit_locations. yjit_raw_samples represents the raw frames information +// (without name, file, and line), and yjit_line_samples represents the line information +// of the iseq caller. +VALUE +rb_yjit_exit_locations_dict(VALUE *yjit_raw_samples, int *yjit_line_samples, int samples_len) +{ + VALUE result = rb_hash_new(); + VALUE raw_samples = rb_ary_new_capa(samples_len); + VALUE line_samples = rb_ary_new_capa(samples_len); + VALUE frames = rb_hash_new(); + int idx = 0; + + // While the index is less than samples_len, parse yjit_raw_samples and + // yjit_line_samples, then add casted values to raw_samples and line_samples array. + while (idx < samples_len) { + int num = (int)yjit_raw_samples[idx]; + int line_num = (int)yjit_line_samples[idx]; + idx++; + + rb_ary_push(raw_samples, SIZET2NUM(num)); + rb_ary_push(line_samples, INT2NUM(line_num)); + + // Loop through the length of samples_len and add data to the + // frames hash. Also push the current value onto the raw_samples + // and line_samples arrary respectively. + for (int o = 0; o < num; o++) { + rb_yjit_add_frame(frames, yjit_raw_samples[idx]); + rb_ary_push(raw_samples, SIZET2NUM(yjit_raw_samples[idx])); + rb_ary_push(line_samples, INT2NUM(yjit_line_samples[idx])); + idx++; + } + + rb_ary_push(raw_samples, SIZET2NUM(yjit_raw_samples[idx])); + rb_ary_push(line_samples, INT2NUM(yjit_line_samples[idx])); + idx++; + + rb_ary_push(raw_samples, SIZET2NUM(yjit_raw_samples[idx])); + rb_ary_push(line_samples, INT2NUM(yjit_line_samples[idx])); + idx++; + } + + // Set add the raw_samples, line_samples, and frames to the results + // hash. + rb_hash_aset(result, ID2SYM(rb_intern("raw")), raw_samples); + rb_hash_aset(result, ID2SYM(rb_intern("lines")), line_samples); + rb_hash_aset(result, ID2SYM(rb_intern("frames")), frames); + + return result; +} + uint32_t rb_yjit_get_page_size(void) { @@ -860,12 +949,14 @@ rb_yjit_invalidate_all_method_lookup_assumptions(void) // Primitives used by yjit.rb VALUE rb_yjit_stats_enabled_p(rb_execution_context_t *ec, VALUE self); +VALUE rb_yjit_trace_exit_locations_enabled_p(rb_execution_context_t *ec, VALUE self); VALUE rb_yjit_get_stats(rb_execution_context_t *ec, VALUE self); VALUE rb_yjit_reset_stats_bang(rb_execution_context_t *ec, VALUE self); VALUE rb_yjit_disasm_iseq(rb_execution_context_t *ec, VALUE self, VALUE iseq); VALUE rb_yjit_insns_compiled(rb_execution_context_t *ec, VALUE self, VALUE iseq); VALUE rb_yjit_simulate_oom_bang(rb_execution_context_t *ec, VALUE self); VALUE rb_yjit_get_stats(rb_execution_context_t *ec, VALUE self); +VALUE rb_yjit_get_exit_locations(rb_execution_context_t *ec, VALUE self); // Preprocessed yjit.rb generated during build #include "yjit.rbinc" |