From 4e2eb7695e9b45cb5d2ae757bdb5c2043d78be78 Mon Sep 17 00:00:00 2001
From: Jose Narvaez <goyox86@gmail.com>
Date: Sat, 6 Mar 2021 23:46:56 +0000
Subject: Yet Another Ruby JIT!

Renaming uJIT to YJIT. AKA s/ujit/yjit/g.
---
 yjit_iface.h | 91 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 yjit_iface.h

(limited to 'yjit_iface.h')

diff --git a/yjit_iface.h b/yjit_iface.h
new file mode 100644
index 0000000000..600fa47a34
--- /dev/null
+++ b/yjit_iface.h
@@ -0,0 +1,91 @@
+//
+// These are definitions YJIT uses to interface with the CRuby codebase,
+// but which are only used internally by YJIT.
+//
+
+#ifndef YJIT_IFACE_H
+#define YJIT_IFACE_H 1
+
+#include "stddef.h"
+#include "stdint.h"
+#include "stdbool.h"
+#include "internal.h"
+#include "ruby/internal/attr/nodiscard.h"
+#include "vm_core.h"
+#include "vm_callinfo.h"
+#include "builtin.h"
+#include "yjit_core.h"
+
+#ifndef rb_callcache
+struct rb_callcache;
+#define rb_callcache rb_callcache
+#endif
+
+#define YJIT_DECLARE_COUNTERS(...) struct rb_yjit_runtime_counters { \
+    int64_t __VA_ARGS__; \
+}; \
+static char yjit_counter_names[] = #__VA_ARGS__;
+
+YJIT_DECLARE_COUNTERS(
+    exec_instruction,
+
+    oswb_callsite_not_simple,
+    oswb_kw_splat,
+    oswb_ic_empty,
+    oswb_invalid_cme,
+    oswb_ivar_set_method,
+    oswb_ivar_get_method,
+    oswb_zsuper_method,
+    oswb_alias_method,
+    oswb_undef_method,
+    oswb_optimized_method,
+    oswb_missing_method,
+    oswb_bmethod,
+    oswb_refined_method,
+    oswb_unknown_method_type,
+    oswb_cfunc_ruby_array_varg,
+    oswb_cfunc_argc_mismatch,
+    oswb_cfunc_toomany_args,
+    oswb_iseq_tailcall,
+    oswb_iseq_argc_mismatch,
+    oswb_iseq_not_simple,
+    oswb_not_implemented_method,
+    oswb_se_receiver_not_heap,
+    oswb_se_cf_overflow,
+    oswb_se_cc_klass_differ,
+    oswb_se_protected_check_failed,
+
+    leave_se_finish_frame,
+    leave_se_interrupt,
+
+    // Member with known name for iterating over counters
+    last_member
+)
+
+#undef YJIT_DECLARE_COUNTERS
+
+RUBY_EXTERN struct rb_yjit_options rb_yjit_opts;
+RUBY_EXTERN int64_t rb_compiled_iseq_count;
+RUBY_EXTERN struct rb_yjit_runtime_counters yjit_runtime_counters;
+
+void cb_write_pre_call_bytes(codeblock_t* cb);
+void cb_write_post_call_bytes(codeblock_t* cb);
+
+VALUE *iseq_pc_at_idx(const rb_iseq_t *iseq, uint32_t insn_idx);
+void map_addr2insn(void *code_ptr, int insn);
+int opcode_at_pc(const rb_iseq_t *iseq, const VALUE *pc);
+
+void check_cfunc_dispatch(VALUE receiver, struct rb_call_data *cd, void *callee, rb_callable_method_entry_t *compile_time_cme);
+bool cfunc_needs_frame(const rb_method_cfunc_t *cfunc);
+
+void assume_method_lookup_stable(const struct rb_callcache *cc, const rb_callable_method_entry_t *cme, block_t* block);
+RBIMPL_ATTR_NODISCARD() bool assume_single_ractor_mode(block_t *block);
+RBIMPL_ATTR_NODISCARD() bool assume_stable_global_constant_state(block_t *block);
+
+// this function *must* return passed exit_pc
+const VALUE *rb_yjit_count_side_exit_op(const VALUE *exit_pc);
+
+void yjit_unlink_method_lookup_dependency(block_t *block);
+void yjit_block_assumptions_free(block_t *block);
+
+#endif // #ifndef YJIT_IFACE_
-- 
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