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ruby--ruby/vm_core.h
mame 9a27239558 * proc.c (struct METHOD), gc.c (gc_marks), vm_method.c 
(rb_gc_mark_unlinked_live_method_entries): fix SEGV bug.
  rb_method_entry_t was free'd even when the method is still on the
  stack if it is BMETHOD (i.e., Method#call).  This is because
  rb_method_entry_t is embedded in struct METHOD.  This commit
  separates them and marks the live method entries.
  See [ruby-core:38449] in detail.  fix [Bug #5047] [ruby-core:38171]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32669 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2011-07-25 14:29:28 +00:00

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/**********************************************************************
vm_core.h -
$Author$
created at: 04/01/01 19:41:38 JST
Copyright (C) 2004-2007 Koichi Sasada
**********************************************************************/
#ifndef RUBY_VM_CORE_H
#define RUBY_VM_CORE_H
#define RUBY_VM_THREAD_MODEL 2
#include "ruby/ruby.h"
#include "ruby/st.h"
#include "node.h"
#include "debug.h"
#include "vm_opts.h"
#include "id.h"
#include "method.h"
#include "atomic.h"
#if defined(_WIN32)
#include "thread_win32.h"
#elif defined(HAVE_PTHREAD_H)
#include "thread_pthread.h"
#else
#error "unsupported thread type"
#endif
#ifndef ENABLE_VM_OBJSPACE
#ifdef _WIN32
/*
* TODO: object space independent st_table.
* socklist needs st_table in rb_w32_sysinit(), before object space
* initialization.
* It is too early now to change st_hash_type, since it breaks binary
* compatibility.
*/
#define ENABLE_VM_OBJSPACE 0
#else
#define ENABLE_VM_OBJSPACE 1
#endif
#endif
#include <setjmp.h>
#include <signal.h>
#ifndef NSIG
# define NSIG (_SIGMAX + 1) /* For QNX */
#endif
#define RUBY_NSIG NSIG
#ifdef HAVE_STDARG_PROTOTYPES
#include <stdarg.h>
#define va_init_list(a,b) va_start((a),(b))
#else
#include <varargs.h>
#define va_init_list(a,b) va_start((a))
#endif
#if defined(SIGSEGV) && defined(HAVE_SIGALTSTACK) && defined(SA_SIGINFO) && !defined(__NetBSD__)
#define USE_SIGALTSTACK
#endif
/*****************/
/* configuration */
/*****************/
/* gcc ver. check */
#if defined(__GNUC__) && __GNUC__ >= 2
#if OPT_TOKEN_THREADED_CODE
#if OPT_DIRECT_THREADED_CODE
#undef OPT_DIRECT_THREADED_CODE
#endif
#endif
#else /* defined(__GNUC__) && __GNUC__ >= 2 */
/* disable threaded code options */
#if OPT_DIRECT_THREADED_CODE
#undef OPT_DIRECT_THREADED_CODE
#endif
#if OPT_TOKEN_THREADED_CODE
#undef OPT_TOKEN_THREADED_CODE
#endif
#endif
/* call threaded code */
#if OPT_CALL_THREADED_CODE
#if OPT_DIRECT_THREADED_CODE
#undef OPT_DIRECT_THREADED_CODE
#endif /* OPT_DIRECT_THREADED_CODE */
#if OPT_STACK_CACHING
#undef OPT_STACK_CACHING
#endif /* OPT_STACK_CACHING */
#endif /* OPT_CALL_THREADED_CODE */
/* likely */
#if __GNUC__ >= 3
#define LIKELY(x) (__builtin_expect((x), 1))
#define UNLIKELY(x) (__builtin_expect((x), 0))
#else /* __GNUC__ >= 3 */
#define LIKELY(x) (x)
#define UNLIKELY(x) (x)
#endif /* __GNUC__ >= 3 */
#if __GNUC__ >= 3
#define UNINITIALIZED_VAR(x) x = x
#else
#define UNINITIALIZED_VAR(x) x
#endif
typedef unsigned long rb_num_t;
/* iseq data type */
struct iseq_compile_data_ensure_node_stack;
typedef struct rb_compile_option_struct rb_compile_option_t;
struct iseq_inline_cache_entry {
VALUE ic_vmstat;
VALUE ic_class;
union {
VALUE value;
rb_method_entry_t *method;
long index;
} ic_value;
};
#if 1
#define GetCoreDataFromValue(obj, type, ptr) do { \
(ptr) = (type*)DATA_PTR(obj); \
} while (0)
#else
#define GetCoreDataFromValue(obj, type, ptr) Data_Get_Struct((obj), type, (ptr))
#endif
#define GetISeqPtr(obj, ptr) \
GetCoreDataFromValue((obj), rb_iseq_t, (ptr))
struct rb_iseq_struct;
struct rb_iseq_struct {
/***************/
/* static data */
/***************/
enum iseq_type {
ISEQ_TYPE_TOP,
ISEQ_TYPE_METHOD,
ISEQ_TYPE_BLOCK,
ISEQ_TYPE_CLASS,
ISEQ_TYPE_RESCUE,
ISEQ_TYPE_ENSURE,
ISEQ_TYPE_EVAL,
ISEQ_TYPE_MAIN,
ISEQ_TYPE_DEFINED_GUARD
} type; /* instruction sequence type */
VALUE name; /* String: iseq name */
VALUE filename; /* file information where this sequence from */
VALUE filepath; /* real file path or nil */
VALUE *iseq; /* iseq (insn number and operands) */
VALUE *iseq_encoded; /* encoded iseq */
unsigned long iseq_size;
VALUE mark_ary; /* Array: includes operands which should be GC marked */
VALUE coverage; /* coverage array */
unsigned short line_no;
/* insn info, must be freed */
struct iseq_insn_info_entry *insn_info_table;
size_t insn_info_size;
ID *local_table; /* must free */
int local_table_size;
/* method, class frame: sizeof(vars) + 1, block frame: sizeof(vars) */
int local_size;
struct iseq_inline_cache_entry *ic_entries;
int ic_size;
/**
* argument information
*
* def m(a1, a2, ..., aM, # mandatory
* b1=(...), b2=(...), ..., bN=(...), # optional
* *c, # rest
* d1, d2, ..., dO, # post
* &e) # block
* =>
*
* argc = M
* arg_rest = M+N+1 // or -1 if no rest arg
* arg_opts = N
* arg_opts_tbl = [ (N entries) ]
* arg_post_len = O // 0 if no post arguments
* arg_post_start = M+N+2
* arg_block = M+N + 1 + O + 1 // -1 if no block arg
* arg_simple = 0 if not simple arguments.
* = 1 if no opt, rest, post, block.
* = 2 if ambiguos block parameter ({|a|}).
* arg_size = argument size.
*/
int argc;
int arg_simple;
int arg_rest;
int arg_block;
int arg_opts;
int arg_post_len;
int arg_post_start;
int arg_size;
VALUE *arg_opt_table;
size_t stack_max; /* for stack overflow check */
/* catch table */
struct iseq_catch_table_entry *catch_table;
int catch_table_size;
/* for child iseq */
struct rb_iseq_struct *parent_iseq;
struct rb_iseq_struct *local_iseq;
/****************/
/* dynamic data */
/****************/
VALUE self;
VALUE orig; /* non-NULL if its data have origin */
/* block inlining */
/*
* NODE *node;
* void *special_block_builder;
* void *cached_special_block_builder;
* VALUE cached_special_block;
*/
/* klass/module nest information stack (cref) */
NODE *cref_stack;
VALUE klass;
/* misc */
ID defined_method_id; /* for define_method */
/* used at compile time */
struct iseq_compile_data *compile_data;
};
enum ruby_special_exceptions {
ruby_error_reenter,
ruby_error_nomemory,
ruby_error_sysstack,
ruby_error_closed_stream,
ruby_special_error_count
};
#define GetVMPtr(obj, ptr) \
GetCoreDataFromValue((obj), rb_vm_t, (ptr))
#if defined(ENABLE_VM_OBJSPACE) && ENABLE_VM_OBJSPACE
struct rb_objspace;
void rb_objspace_free(struct rb_objspace *);
#endif
typedef struct rb_vm_struct {
VALUE self;
rb_global_vm_lock_t gvl;
struct rb_thread_struct *main_thread;
struct rb_thread_struct *running_thread;
st_table *living_threads;
VALUE thgroup_default;
int running;
int inhibit_thread_creation;
int thread_abort_on_exception;
unsigned long trace_flag;
volatile int sleeper;
/* object management */
VALUE mark_object_ary;
VALUE special_exceptions[ruby_special_error_count];
/* load */
VALUE top_self;
VALUE load_path;
VALUE loaded_features;
struct st_table *loading_table;
/* signal */
struct {
VALUE cmd;
int safe;
} trap_list[RUBY_NSIG];
/* hook */
rb_event_hook_t *event_hooks;
int src_encoding_index;
VALUE verbose, debug, progname;
VALUE coverages;
struct unlinked_method_entry_list_entry *unlinked_method_entry_list;
#if defined(ENABLE_VM_OBJSPACE) && ENABLE_VM_OBJSPACE
struct rb_objspace *objspace;
#endif
/*
* @shyouhei notes that this is not for storing normal Ruby
* objects so do *NOT* mark this when you GC.
*/
struct RArray at_exit;
} rb_vm_t;
typedef struct {
VALUE *pc; /* cfp[0] */
VALUE *sp; /* cfp[1] */
VALUE *bp; /* cfp[2] */
rb_iseq_t *iseq; /* cfp[3] */
VALUE flag; /* cfp[4] */
VALUE self; /* cfp[5] / block[0] */
VALUE *lfp; /* cfp[6] / block[1] */
VALUE *dfp; /* cfp[7] / block[2] */
rb_iseq_t *block_iseq; /* cfp[8] / block[3] */
VALUE proc; /* cfp[9] / block[4] */
const rb_method_entry_t *me;/* cfp[10] */
} rb_control_frame_t;
typedef struct rb_block_struct {
VALUE self; /* share with method frame if it's only block */
VALUE *lfp; /* share with method frame if it's only block */
VALUE *dfp; /* share with method frame if it's only block */
rb_iseq_t *iseq;
VALUE proc;
} rb_block_t;
extern const rb_data_type_t ruby_thread_data_type;
#define GetThreadPtr(obj, ptr) \
TypedData_Get_Struct((obj), rb_thread_t, &ruby_thread_data_type, (ptr))
enum rb_thread_status {
THREAD_TO_KILL,
THREAD_RUNNABLE,
THREAD_STOPPED,
THREAD_STOPPED_FOREVER,
THREAD_KILLED
};
typedef RUBY_JMP_BUF rb_jmpbuf_t;
struct rb_vm_tag {
rb_jmpbuf_t buf;
VALUE tag;
VALUE retval;
struct rb_vm_tag *prev;
};
struct rb_vm_protect_tag {
struct rb_vm_protect_tag *prev;
};
struct rb_unblock_callback {
rb_unblock_function_t *func;
void *arg;
};
struct rb_mutex_struct;
typedef struct rb_thread_struct {
VALUE self;
rb_vm_t *vm;
/* execution information */
VALUE *stack; /* must free, must mark */
unsigned long stack_size;
rb_control_frame_t *cfp;
int safe_level;
int raised_flag;
VALUE last_status; /* $? */
/* passing state */
int state;
int waiting_fd;
/* for rb_iterate */
const rb_block_t *passed_block;
/* for bmethod */
const rb_method_entry_t *passed_me;
/* for load(true) */
VALUE top_self;
VALUE top_wrapper;
/* eval env */
rb_block_t *base_block;
VALUE *local_lfp;
VALUE local_svar;
/* thread control */
rb_thread_id_t thread_id;
enum rb_thread_status status;
int priority;
native_thread_data_t native_thread_data;
void *blocking_region_buffer;
VALUE thgroup;
VALUE value;
VALUE errinfo;
VALUE thrown_errinfo;
rb_atomic_t interrupt_flag;
rb_thread_lock_t interrupt_lock;
struct rb_unblock_callback unblock;
VALUE locking_mutex;
struct rb_mutex_struct *keeping_mutexes;
struct rb_vm_tag *tag;
struct rb_vm_protect_tag *protect_tag;
int parse_in_eval;
int mild_compile_error;
/* storage */
st_table *local_storage;
struct rb_thread_struct *join_list_next;
struct rb_thread_struct *join_list_head;
VALUE first_proc;
VALUE first_args;
VALUE (*first_func)(ANYARGS);
/* for GC */
VALUE *machine_stack_start;
VALUE *machine_stack_end;
size_t machine_stack_maxsize;
#ifdef __ia64
VALUE *machine_register_stack_start;
VALUE *machine_register_stack_end;
size_t machine_register_stack_maxsize;
#endif
jmp_buf machine_regs;
int mark_stack_len;
/* statistics data for profiler */
VALUE stat_insn_usage;
/* tracer */
rb_event_hook_t *event_hooks;
rb_event_flag_t event_flags;
int tracing;
/* fiber */
VALUE fiber;
VALUE root_fiber;
rb_jmpbuf_t root_jmpbuf;
/* misc */
int method_missing_reason;
int abort_on_exception;
#ifdef USE_SIGALTSTACK
void *altstack;
#endif
unsigned long running_time_us;
} rb_thread_t;
/* iseq.c */
#if defined __GNUC__ && __GNUC__ >= 4
#pragma GCC visibility push(default)
#endif
VALUE rb_iseq_new(NODE*, VALUE, VALUE, VALUE, VALUE, enum iseq_type);
VALUE rb_iseq_new_top(NODE *node, VALUE name, VALUE filename, VALUE filepath, VALUE parent);
VALUE rb_iseq_new_main(NODE *node, VALUE filename, VALUE filepath);
VALUE rb_iseq_new_with_bopt(NODE*, VALUE, VALUE, VALUE, VALUE, VALUE, enum iseq_type, VALUE);
VALUE rb_iseq_new_with_opt(NODE*, VALUE, VALUE, VALUE, VALUE, VALUE, enum iseq_type, const rb_compile_option_t*);
VALUE rb_iseq_compile(VALUE src, VALUE file, VALUE line);
VALUE rb_iseq_compile_with_option(VALUE src, VALUE file, VALUE filepath, VALUE line, VALUE opt);
VALUE rb_iseq_disasm(VALUE self);
int rb_iseq_disasm_insn(VALUE str, VALUE *iseqval, size_t pos, rb_iseq_t *iseq, VALUE child);
const char *ruby_node_name(int node);
int rb_iseq_first_lineno(rb_iseq_t *iseq);
RUBY_EXTERN VALUE rb_cISeq;
RUBY_EXTERN VALUE rb_cRubyVM;
RUBY_EXTERN VALUE rb_cEnv;
RUBY_EXTERN VALUE rb_mRubyVMFrozenCore;
#if defined __GNUC__ && __GNUC__ >= 4
#pragma GCC visibility pop
#endif
/* each thread has this size stack : 128KB */
#define RUBY_VM_THREAD_STACK_SIZE (128 * 1024)
#define GetProcPtr(obj, ptr) \
GetCoreDataFromValue((obj), rb_proc_t, (ptr))
typedef struct {
rb_block_t block;
VALUE envval; /* for GC mark */
VALUE blockprocval;
int safe_level;
int is_from_method;
int is_lambda;
} rb_proc_t;
#define GetEnvPtr(obj, ptr) \
GetCoreDataFromValue((obj), rb_env_t, (ptr))
typedef struct {
VALUE *env;
int env_size;
int local_size;
VALUE prev_envval; /* for GC mark */
rb_block_t block;
} rb_env_t;
#define GetBindingPtr(obj, ptr) \
GetCoreDataFromValue((obj), rb_binding_t, (ptr))
typedef struct {
VALUE env;
VALUE filename;
unsigned short line_no;
} rb_binding_t;
/* used by compile time and send insn */
#define VM_CALL_ARGS_SPLAT_BIT (0x01 << 1)
#define VM_CALL_ARGS_BLOCKARG_BIT (0x01 << 2)
#define VM_CALL_FCALL_BIT (0x01 << 3)
#define VM_CALL_VCALL_BIT (0x01 << 4)
#define VM_CALL_TAILCALL_BIT (0x01 << 5)
#define VM_CALL_TAILRECURSION_BIT (0x01 << 6)
#define VM_CALL_SUPER_BIT (0x01 << 7)
#define VM_CALL_OPT_SEND_BIT (0x01 << 8)
enum vm_special_object_type {
VM_SPECIAL_OBJECT_VMCORE = 1,
VM_SPECIAL_OBJECT_CBASE,
VM_SPECIAL_OBJECT_CONST_BASE
};
#define VM_FRAME_MAGIC_METHOD 0x11
#define VM_FRAME_MAGIC_BLOCK 0x21
#define VM_FRAME_MAGIC_CLASS 0x31
#define VM_FRAME_MAGIC_TOP 0x41
#define VM_FRAME_MAGIC_FINISH 0x51
#define VM_FRAME_MAGIC_CFUNC 0x61
#define VM_FRAME_MAGIC_PROC 0x71
#define VM_FRAME_MAGIC_IFUNC 0x81
#define VM_FRAME_MAGIC_EVAL 0x91
#define VM_FRAME_MAGIC_LAMBDA 0xa1
#define VM_FRAME_MAGIC_MASK_BITS 8
#define VM_FRAME_MAGIC_MASK (~(~0<<VM_FRAME_MAGIC_MASK_BITS))
#define VM_FRAME_TYPE(cfp) ((cfp)->flag & VM_FRAME_MAGIC_MASK)
/* other frame flag */
#define VM_FRAME_FLAG_PASSED 0x0100
#define RUBYVM_CFUNC_FRAME_P(cfp) \
(VM_FRAME_TYPE(cfp) == VM_FRAME_MAGIC_CFUNC)
/* inline cache */
typedef struct iseq_inline_cache_entry *IC;
void rb_vm_change_state(void);
typedef VALUE CDHASH;
#ifndef FUNC_FASTCALL
#define FUNC_FASTCALL(x) x
#endif
typedef rb_control_frame_t *
(FUNC_FASTCALL(*rb_insn_func_t))(rb_thread_t *, rb_control_frame_t *);
#define GC_GUARDED_PTR(p) ((VALUE)((VALUE)(p) | 0x01))
#define GC_GUARDED_PTR_REF(p) ((void *)(((VALUE)(p)) & ~0x03))
#define GC_GUARDED_PTR_P(p) (((VALUE)(p)) & 0x01)
#define RUBY_VM_PREVIOUS_CONTROL_FRAME(cfp) ((cfp)+1)
#define RUBY_VM_NEXT_CONTROL_FRAME(cfp) ((cfp)-1)
#define RUBY_VM_END_CONTROL_FRAME(th) \
((rb_control_frame_t *)((th)->stack + (th)->stack_size))
#define RUBY_VM_VALID_CONTROL_FRAME_P(cfp, ecfp) \
((void *)(ecfp) > (void *)(cfp))
#define RUBY_VM_CONTROL_FRAME_STACK_OVERFLOW_P(th, cfp) \
(!RUBY_VM_VALID_CONTROL_FRAME_P((cfp), RUBY_VM_END_CONTROL_FRAME(th)))
#define RUBY_VM_IFUNC_P(ptr) (BUILTIN_TYPE(ptr) == T_NODE)
#define RUBY_VM_NORMAL_ISEQ_P(ptr) \
((ptr) && !RUBY_VM_IFUNC_P(ptr))
#define RUBY_VM_GET_BLOCK_PTR_IN_CFP(cfp) ((rb_block_t *)(&(cfp)->self))
#define RUBY_VM_GET_CFP_FROM_BLOCK_PTR(b) \
((rb_control_frame_t *)((VALUE *)(b) - 5))
/* VM related object allocate functions */
VALUE rb_thread_alloc(VALUE klass);
VALUE rb_proc_alloc(VALUE klass);
/* for debug */
extern void rb_vmdebug_stack_dump_raw(rb_thread_t *, rb_control_frame_t *);
#define SDR() rb_vmdebug_stack_dump_raw(GET_THREAD(), GET_THREAD()->cfp)
#define SDR2(cfp) rb_vmdebug_stack_dump_raw(GET_THREAD(), (cfp))
void rb_vm_bugreport(void);
/* functions about thread/vm execution */
#if defined __GNUC__ && __GNUC__ >= 4
#pragma GCC visibility push(default)
#endif
VALUE rb_iseq_eval(VALUE iseqval);
VALUE rb_iseq_eval_main(VALUE iseqval);
#if defined __GNUC__ && __GNUC__ >= 4
#pragma GCC visibility pop
#endif
int rb_thread_method_id_and_class(rb_thread_t *th, ID *idp, VALUE *klassp);
VALUE rb_vm_invoke_proc(rb_thread_t *th, rb_proc_t *proc, VALUE self,
int argc, const VALUE *argv, const rb_block_t *blockptr);
VALUE rb_vm_make_proc(rb_thread_t *th, const rb_block_t *block, VALUE klass);
VALUE rb_vm_make_env_object(rb_thread_t *th, rb_control_frame_t *cfp);
void rb_vm_inc_const_missing_count(void);
void rb_vm_gvl_destroy(rb_vm_t *vm);
VALUE rb_vm_call(rb_thread_t *th, VALUE recv, VALUE id, int argc,
const VALUE *argv, const rb_method_entry_t *me);
void rb_unlink_method_entry(rb_method_entry_t *me);
void rb_gc_mark_unlinked_live_method_entries(void *pvm);
void rb_thread_start_timer_thread(void);
void rb_thread_stop_timer_thread(int);
void rb_thread_reset_timer_thread(void);
void rb_thread_wakeup_timer_thread(void);
int ruby_thread_has_gvl_p(void);
VALUE rb_make_backtrace(void);
typedef int rb_backtrace_iter_func(void *, VALUE, int, VALUE);
int rb_backtrace_each(rb_backtrace_iter_func *iter, void *arg);
rb_control_frame_t *rb_vm_get_ruby_level_next_cfp(rb_thread_t *th, rb_control_frame_t *cfp);
int rb_vm_get_sourceline(const rb_control_frame_t *);
VALUE rb_name_err_mesg_new(VALUE obj, VALUE mesg, VALUE recv, VALUE method);
void rb_vm_stack_to_heap(rb_thread_t *th);
void ruby_thread_init_stack(rb_thread_t *th);
NOINLINE(void rb_gc_save_machine_context(rb_thread_t *));
void rb_gc_mark_machine_stack(rb_thread_t *th);
#define sysstack_error GET_VM()->special_exceptions[ruby_error_sysstack]
/* for thread */
#if RUBY_VM_THREAD_MODEL == 2
RUBY_EXTERN rb_thread_t *ruby_current_thread;
extern rb_vm_t *ruby_current_vm;
#define GET_VM() ruby_current_vm
#define GET_THREAD() ruby_current_thread
#define rb_thread_set_current_raw(th) (void)(ruby_current_thread = (th))
#define rb_thread_set_current(th) do { \
if ((th)->vm->running_thread != (th)) { \
(th)->vm->running_thread->running_time_us = 0; \
} \
rb_thread_set_current_raw(th); \
(th)->vm->running_thread = (th); \
} while (0)
#else
#error "unsupported thread model"
#endif
#define RUBY_VM_SET_TIMER_INTERRUPT(th) ATOMIC_OR((th)->interrupt_flag, 0x01)
#define RUBY_VM_SET_INTERRUPT(th) ATOMIC_OR((th)->interrupt_flag, 0x02)
#define RUBY_VM_SET_FINALIZER_INTERRUPT(th) ATOMIC_OR((th)->interrupt_flag, 0x04)
#define RUBY_VM_INTERRUPTED(th) ((th)->interrupt_flag & 0x02)
int rb_signal_buff_size(void);
void rb_signal_exec(rb_thread_t *th, int sig);
void rb_threadptr_check_signal(rb_thread_t *mth);
void rb_threadptr_signal_raise(rb_thread_t *th, int sig);
void rb_threadptr_signal_exit(rb_thread_t *th);
void rb_threadptr_execute_interrupts(rb_thread_t *);
void rb_threadptr_interrupt(rb_thread_t *th);
void rb_threadptr_unlock_all_locking_mutexes(rb_thread_t *th);
void rb_thread_lock_unlock(rb_thread_lock_t *);
void rb_thread_lock_destroy(rb_thread_lock_t *);
#define RUBY_VM_CHECK_INTS_TH(th) do { \
if (UNLIKELY((th)->interrupt_flag)) { \
rb_threadptr_execute_interrupts(th); \
} \
} while (0)
#define RUBY_VM_CHECK_INTS() \
RUBY_VM_CHECK_INTS_TH(GET_THREAD())
/* tracer */
void
rb_threadptr_exec_event_hooks(rb_thread_t *th, rb_event_flag_t flag, VALUE self, ID id, VALUE klass);
#define EXEC_EVENT_HOOK(th, flag, self, id, klass) do { \
rb_event_flag_t wait_event__ = (th)->event_flags; \
if (UNLIKELY(wait_event__)) { \
if (wait_event__ & ((flag) | RUBY_EVENT_VM)) { \
rb_threadptr_exec_event_hooks((th), (flag), (self), (id), (klass)); \
} \
} \
} while (0)
#if defined __GNUC__ && __GNUC__ >= 4
#pragma GCC visibility push(default)
#endif
int rb_thread_check_trap_pending(void);
extern VALUE rb_get_coverages(void);
extern void rb_set_coverages(VALUE);
extern void rb_reset_coverages(void);
#if defined __GNUC__ && __GNUC__ >= 4
#pragma GCC visibility pop
#endif
#endif /* RUBY_VM_CORE_H */
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