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-rw-r--r--jit.c423
1 files changed, 423 insertions, 0 deletions
diff --git a/jit.c b/jit.c
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+++ b/jit.c
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+// Glue code shared between YJIT and ZJIT for use from Rust.
+// For FFI safety and bindgen compatibility reasons, certain types of C
+// functions require wrapping before they can be called from Rust. Those show
+// up here.
+//
+// Code specific to YJIT and ZJIT should go to yjit.c and zjit.c respectively.
+
+#include "internal.h"
+#include "vm_core.h"
+#include "vm_callinfo.h"
+#include "builtin.h"
+#include "insns.inc"
+#include "insns_info.inc"
+#include "iseq.h"
+#include "internal/gc.h"
+
+unsigned int
+rb_iseq_encoded_size(const rb_iseq_t *iseq)
+{
+ return iseq->body->iseq_size;
+}
+
+// Get the PC for a given index in an iseq
+VALUE *
+rb_iseq_pc_at_idx(const rb_iseq_t *iseq, uint32_t insn_idx)
+{
+ RUBY_ASSERT_ALWAYS(IMEMO_TYPE_P(iseq, imemo_iseq));
+ RUBY_ASSERT_ALWAYS(insn_idx < iseq->body->iseq_size);
+ VALUE *encoded = iseq->body->iseq_encoded;
+ VALUE *pc = &encoded[insn_idx];
+ return pc;
+}
+
+// Get the opcode given a program counter. Can return trace opcode variants.
+int
+rb_iseq_opcode_at_pc(const rb_iseq_t *iseq, const VALUE *pc)
+{
+ // YJIT should only use iseqs after AST to bytecode compilation
+ RUBY_ASSERT_ALWAYS(FL_TEST_RAW((VALUE)iseq, ISEQ_TRANSLATED));
+
+ const VALUE at_pc = *pc;
+ return rb_vm_insn_addr2opcode((const void *)at_pc);
+}
+
+unsigned long
+rb_RSTRING_LEN(VALUE str)
+{
+ return RSTRING_LEN(str);
+}
+
+char *
+rb_RSTRING_PTR(VALUE str)
+{
+ return RSTRING_PTR(str);
+}
+
+const char *
+rb_insn_name(VALUE insn)
+{
+ return insn_name(insn);
+}
+
+unsigned int
+rb_vm_ci_argc(const struct rb_callinfo *ci)
+{
+ return vm_ci_argc(ci);
+}
+
+ID
+rb_vm_ci_mid(const struct rb_callinfo *ci)
+{
+ return vm_ci_mid(ci);
+}
+
+unsigned int
+rb_vm_ci_flag(const struct rb_callinfo *ci)
+{
+ return vm_ci_flag(ci);
+}
+
+const struct rb_callinfo_kwarg *
+rb_vm_ci_kwarg(const struct rb_callinfo *ci)
+{
+ return vm_ci_kwarg(ci);
+}
+
+int
+rb_get_cikw_keyword_len(const struct rb_callinfo_kwarg *cikw)
+{
+ return cikw->keyword_len;
+}
+
+VALUE
+rb_get_cikw_keywords_idx(const struct rb_callinfo_kwarg *cikw, int idx)
+{
+ return cikw->keywords[idx];
+}
+
+rb_method_visibility_t
+rb_METHOD_ENTRY_VISI(const rb_callable_method_entry_t *me)
+{
+ return METHOD_ENTRY_VISI(me);
+}
+
+rb_method_type_t
+rb_get_cme_def_type(const rb_callable_method_entry_t *cme)
+{
+ if (UNDEFINED_METHOD_ENTRY_P(cme)) {
+ return VM_METHOD_TYPE_UNDEF;
+ }
+ else {
+ return cme->def->type;
+ }
+}
+
+ID
+rb_get_cme_def_body_attr_id(const rb_callable_method_entry_t *cme)
+{
+ return cme->def->body.attr.id;
+}
+
+enum method_optimized_type
+rb_get_cme_def_body_optimized_type(const rb_callable_method_entry_t *cme)
+{
+ return cme->def->body.optimized.type;
+}
+
+unsigned int
+rb_get_cme_def_body_optimized_index(const rb_callable_method_entry_t *cme)
+{
+ return cme->def->body.optimized.index;
+}
+
+rb_method_cfunc_t *
+rb_get_cme_def_body_cfunc(const rb_callable_method_entry_t *cme)
+{
+ return UNALIGNED_MEMBER_PTR(cme->def, body.cfunc);
+}
+
+uintptr_t
+rb_get_def_method_serial(const rb_method_definition_t *def)
+{
+ return def->method_serial;
+}
+
+ID
+rb_get_def_original_id(const rb_method_definition_t *def)
+{
+ return def->original_id;
+}
+
+int
+rb_get_mct_argc(const rb_method_cfunc_t *mct)
+{
+ return mct->argc;
+}
+
+void *
+rb_get_mct_func(const rb_method_cfunc_t *mct)
+{
+ return (void*)(uintptr_t)mct->func; // this field is defined as type VALUE (*func)(ANYARGS)
+}
+
+const rb_iseq_t *
+rb_get_def_iseq_ptr(rb_method_definition_t *def)
+{
+ return def_iseq_ptr(def);
+}
+
+const rb_iseq_t *
+rb_get_iseq_body_local_iseq(const rb_iseq_t *iseq)
+{
+ return iseq->body->local_iseq;
+}
+
+unsigned int
+rb_get_iseq_body_local_table_size(const rb_iseq_t *iseq)
+{
+ return iseq->body->local_table_size;
+}
+
+VALUE *
+rb_get_iseq_body_iseq_encoded(const rb_iseq_t *iseq)
+{
+ return iseq->body->iseq_encoded;
+}
+
+unsigned
+rb_get_iseq_body_stack_max(const rb_iseq_t *iseq)
+{
+ return iseq->body->stack_max;
+}
+
+enum rb_iseq_type
+rb_get_iseq_body_type(const rb_iseq_t *iseq)
+{
+ return iseq->body->type;
+}
+
+bool
+rb_get_iseq_flags_has_lead(const rb_iseq_t *iseq)
+{
+ return iseq->body->param.flags.has_lead;
+}
+
+bool
+rb_get_iseq_flags_has_opt(const rb_iseq_t *iseq)
+{
+ return iseq->body->param.flags.has_opt;
+}
+
+bool
+rb_get_iseq_flags_has_kw(const rb_iseq_t *iseq)
+{
+ return iseq->body->param.flags.has_kw;
+}
+
+bool
+rb_get_iseq_flags_has_post(const rb_iseq_t *iseq)
+{
+ return iseq->body->param.flags.has_post;
+}
+
+bool
+rb_get_iseq_flags_has_kwrest(const rb_iseq_t *iseq)
+{
+ return iseq->body->param.flags.has_kwrest;
+}
+
+bool
+rb_get_iseq_flags_anon_kwrest(const rb_iseq_t *iseq)
+{
+ return iseq->body->param.flags.anon_kwrest;
+}
+
+bool
+rb_get_iseq_flags_has_rest(const rb_iseq_t *iseq)
+{
+ return iseq->body->param.flags.has_rest;
+}
+
+bool
+rb_get_iseq_flags_ruby2_keywords(const rb_iseq_t *iseq)
+{
+ return iseq->body->param.flags.ruby2_keywords;
+}
+
+bool
+rb_get_iseq_flags_has_block(const rb_iseq_t *iseq)
+{
+ return iseq->body->param.flags.has_block;
+}
+
+bool
+rb_get_iseq_flags_ambiguous_param0(const rb_iseq_t *iseq)
+{
+ return iseq->body->param.flags.ambiguous_param0;
+}
+
+bool
+rb_get_iseq_flags_accepts_no_kwarg(const rb_iseq_t *iseq)
+{
+ return iseq->body->param.flags.accepts_no_kwarg;
+}
+
+bool
+rb_get_iseq_flags_forwardable(const rb_iseq_t *iseq)
+{
+ return iseq->body->param.flags.forwardable;
+}
+
+// This is defined only as a named struct inside rb_iseq_constant_body.
+// By giving it a separate typedef, we make it nameable by rust-bindgen.
+// Bindgen's temp/anon name isn't guaranteed stable.
+typedef struct rb_iseq_param_keyword rb_iseq_param_keyword_struct;
+
+const rb_iseq_param_keyword_struct *
+rb_get_iseq_body_param_keyword(const rb_iseq_t *iseq)
+{
+ return iseq->body->param.keyword;
+}
+
+unsigned
+rb_get_iseq_body_param_size(const rb_iseq_t *iseq)
+{
+ return iseq->body->param.size;
+}
+
+int
+rb_get_iseq_body_param_lead_num(const rb_iseq_t *iseq)
+{
+ return iseq->body->param.lead_num;
+}
+
+int
+rb_get_iseq_body_param_opt_num(const rb_iseq_t *iseq)
+{
+ return iseq->body->param.opt_num;
+}
+
+const VALUE *
+rb_get_iseq_body_param_opt_table(const rb_iseq_t *iseq)
+{
+ return iseq->body->param.opt_table;
+}
+
+struct rb_control_frame_struct *
+rb_get_ec_cfp(const rb_execution_context_t *ec)
+{
+ return ec->cfp;
+}
+
+const rb_iseq_t *
+rb_get_cfp_iseq(struct rb_control_frame_struct *cfp)
+{
+ return cfp->iseq;
+}
+
+VALUE *
+rb_get_cfp_pc(struct rb_control_frame_struct *cfp)
+{
+ return (VALUE*)cfp->pc;
+}
+
+VALUE *
+rb_get_cfp_sp(struct rb_control_frame_struct *cfp)
+{
+ return cfp->sp;
+}
+
+VALUE
+rb_get_cfp_self(struct rb_control_frame_struct *cfp)
+{
+ return cfp->self;
+}
+
+VALUE *
+rb_get_cfp_ep(struct rb_control_frame_struct *cfp)
+{
+ return (VALUE*)cfp->ep;
+}
+
+const VALUE *
+rb_get_cfp_ep_level(struct rb_control_frame_struct *cfp, uint32_t lv)
+{
+ uint32_t i;
+ const VALUE *ep = (VALUE*)cfp->ep;
+ for (i = 0; i < lv; i++) {
+ ep = VM_ENV_PREV_EP(ep);
+ }
+ return ep;
+}
+
+VALUE
+rb_yarv_class_of(VALUE obj)
+{
+ return rb_class_of(obj);
+}
+
+// The FL_TEST() macro
+VALUE
+rb_FL_TEST(VALUE obj, VALUE flags)
+{
+ return RB_FL_TEST(obj, flags);
+}
+
+// The FL_TEST_RAW() macro, normally an internal implementation detail
+VALUE
+rb_FL_TEST_RAW(VALUE obj, VALUE flags)
+{
+ return FL_TEST_RAW(obj, flags);
+}
+
+// The RB_TYPE_P macro
+bool
+rb_RB_TYPE_P(VALUE obj, enum ruby_value_type t)
+{
+ return RB_TYPE_P(obj, t);
+}
+
+long
+rb_RSTRUCT_LEN(VALUE st)
+{
+ return RSTRUCT_LEN(st);
+}
+
+const struct rb_callinfo *
+rb_get_call_data_ci(const struct rb_call_data *cd)
+{
+ return cd->ci;
+}
+
+bool
+rb_BASIC_OP_UNREDEFINED_P(enum ruby_basic_operators bop, uint32_t klass)
+{
+ return BASIC_OP_UNREDEFINED_P(bop, klass);
+}
+
+VALUE
+rb_RCLASS_ORIGIN(VALUE c)
+{
+ return RCLASS_ORIGIN(c);
+}
+
+// For debug builds
+void
+rb_assert_iseq_handle(VALUE handle)
+{
+ RUBY_ASSERT_ALWAYS(IMEMO_TYPE_P(handle, imemo_iseq));
+}
+
+int
+rb_IMEMO_TYPE_P(VALUE imemo, enum imemo_type imemo_type)
+{
+ return IMEMO_TYPE_P(imemo, imemo_type);
+}
+
+void
+rb_assert_cme_handle(VALUE handle)
+{
+ RUBY_ASSERT_ALWAYS(!rb_objspace_garbage_object_p(handle));
+ RUBY_ASSERT_ALWAYS(IMEMO_TYPE_P(handle, imemo_ment));
+}