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bd876c243a
This change fixes some cases where YJIT fails to fire tracing events. Most of the situations YJIT did not handle correctly involves enabling tracing while running inside generated code. A new operation to invalidate all generated code is added, which uses patching to make generated code exit at the next VM instruction boundary. A new routine called `jit_prepare_routine_call()` is introduced to facilitate this and should be used when generating code that could allocate, or could otherwise use `RB_VM_LOCK_ENTER()`. The `c_return` event is fired in the middle of an instruction as opposed to at an instruction boundary, so it requires special handling. C method call return points are patched to go to a fucntion which does everything the interpreter does, including firing the `c_return` event. The generated code for C method calls normally does not fire the event. Invalided code should not change after patching so the exits are not clobbered. A new variable is introduced to track the region of code that should not change.
126 lines
3.2 KiB
C
126 lines
3.2 KiB
C
//
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// These are definitions YJIT uses to interface with the CRuby codebase,
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// but which are only used internally by YJIT.
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//
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#ifndef YJIT_IFACE_H
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#define YJIT_IFACE_H 1
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#include "ruby/ruby.h"
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#include "ruby/assert.h" // for RUBY_DEBUG
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#include "vm_core.h"
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#include "yjit_core.h"
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#ifndef YJIT_DEFAULT_CALL_THRESHOLD
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# define YJIT_DEFAULT_CALL_THRESHOLD 10
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#endif
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#if RUBY_DEBUG
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# define YJIT_STATS 1
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struct yjit_comment {
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uint32_t offset;
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const char *comment;
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};
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typedef rb_darray(struct yjit_comment) yjit_comment_array_t;
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extern yjit_comment_array_t yjit_code_comments;
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#else
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# ifndef YJIT_STATS
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# define YJIT_STATS 0
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# endif // ifndef YJIT_STATS
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#endif // if RUBY_DEBUG
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#if YJIT_STATS
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#define YJIT_DECLARE_COUNTERS(...) struct rb_yjit_runtime_counters { \
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int64_t __VA_ARGS__; \
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}; \
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static char yjit_counter_names[] = #__VA_ARGS__;
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YJIT_DECLARE_COUNTERS(
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exec_instruction,
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send_callsite_not_simple,
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send_kw_splat,
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send_ivar_set_method,
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send_zsuper_method,
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send_undef_method,
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send_optimized_method,
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send_missing_method,
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send_bmethod,
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send_refined_method,
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send_cfunc_ruby_array_varg,
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send_cfunc_argc_mismatch,
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send_cfunc_toomany_args,
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send_cfunc_tracing,
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send_iseq_tailcall,
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send_iseq_arity_error,
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send_iseq_only_keywords,
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send_iseq_complex_callee,
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send_not_implemented_method,
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send_getter_arity,
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send_se_cf_overflow,
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send_se_protected_check_failed,
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traced_cfunc_return,
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leave_se_interrupt,
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leave_interp_return,
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leave_start_pc_non_zero,
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getivar_se_self_not_heap,
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getivar_idx_out_of_range,
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setivar_se_self_not_heap,
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setivar_idx_out_of_range,
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setivar_val_heapobject,
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setivar_name_not_mapped,
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setivar_not_object,
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setivar_frozen,
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oaref_argc_not_one,
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oaref_arg_not_fixnum,
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binding_allocations,
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binding_set,
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vm_insns_count,
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compiled_iseq_count,
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expandarray_splat,
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expandarray_postarg,
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expandarray_not_array,
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expandarray_rhs_too_small,
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// Member with known name for iterating over counters
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last_member
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)
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#undef YJIT_DECLARE_COUNTERS
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#endif // YJIT_STATS
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RUBY_EXTERN struct rb_yjit_options rb_yjit_opts;
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RUBY_EXTERN struct rb_yjit_runtime_counters yjit_runtime_counters;
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void yjit_map_addr2insn(void *code_ptr, int insn);
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VALUE *yjit_iseq_pc_at_idx(const rb_iseq_t *iseq, uint32_t insn_idx);
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int yjit_opcode_at_pc(const rb_iseq_t *iseq, const VALUE *pc);
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void yjit_print_iseq(const rb_iseq_t *iseq);
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void check_cfunc_dispatch(VALUE receiver, struct rb_callinfo *ci, void *callee, rb_callable_method_entry_t *compile_time_cme);
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RBIMPL_ATTR_NODISCARD() bool assume_bop_not_redefined(block_t *block, int redefined_flag, enum ruby_basic_operators bop);
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void assume_method_lookup_stable(VALUE receiver_klass, const rb_callable_method_entry_t *cme, block_t *block);
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RBIMPL_ATTR_NODISCARD() bool assume_single_ractor_mode(block_t *block);
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void assume_stable_global_constant_state(block_t *block);
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// this function *must* return passed exit_pc
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const VALUE *rb_yjit_count_side_exit_op(const VALUE *exit_pc);
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void yjit_unlink_method_lookup_dependency(block_t *block);
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void yjit_block_assumptions_free(block_t *block);
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#endif // #ifndef YJIT_IFACE_H
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