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ruby--ruby/yarvcore.h
akr 3cd5af52e9 * eval_load.c (Init_load): delay allocating an array for rb_load_path 
to avoid GC problem in very early stage.
  (RUBY_GC_STRESS causes GC in such stage.)

* variable.c (rb_gc_mark_global_tbl): rb_global_tbl may be 0 in
  very early stage.

* thread.c (thread_cleanup_func) [IA64]: clear register stack position.
  (thread_start_func_2) [IA64]: record the beginning of register
  stack using extra argument.
  (rb_gc_save_machine_context) [IA64]: record the end of register
  stack.

* gc.c [IA64] (SET_STACK_END): record the end of register stack.
  (garbage_collect) [IA64]: use recorded register stack area for
  GC marking.
  (yarv_machine_stack_mark) [IA64]: GC mark from the register stack
  area.

* yarvcore.c [IA64] (rb_gc_register_stack_start): defined.
  (Init_VM): store th->self on stack to fix GC problem.
  (Init_yarv) [IA64]: initialize the beginning of register stack.

* yarvcore.h (struct rb_thread_struct) [IA64]: new members for
  register stack area.

* thread_pthread.ci (thread_start_func_1) [IA64]: call
  thread_start_func_2 with the end of register stack.

* cont.c (struct rb_context_struct) [IA64]: new members for register
  stack area.
  (cont_mark) [IA64]: GC mark from register stack area.
  (cont_free) [IA64]: free saved register stack.
  (cont_save_machine_stack) [IA64]: record the position and contents
  of the register stack.
  (cont_capture): store cont->self on stack to fix GC problem.
  (cont_restore_1) [IA64]: restore the register stack.
  [IA64] (register_stack_extend): new function.
  (cont_restore_0) [IA64]: call register_stack_extend instead of
  cont_restore_1.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@12537 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2007-06-14 08:35:20 +00:00

700 lines
17 KiB
C
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/**********************************************************************
yarvcore.h -
$Author$
$Date$
created at: 04/01/01 19:41:38 JST
Copyright (C) 2004-2006 Koichi Sasada
**********************************************************************/
#ifndef _YARVCORE_H_INCLUDED_
#define _YARVCORE_H_INCLUDED_
#define RUBY_VM_THREAD_MODEL 2
#include <setjmp.h>
#include "ruby/ruby.h"
#include "ruby/signal.h"
#include "ruby/st.h"
#include "ruby/node.h"
#include "debug.h"
#include "vm_opts.h"
#if defined(_WIN32)
#include "thread_win32.h"
#elif defined(HAVE_PTHREAD_H)
#include "thread_pthread.h"
#else
#error "unsupported thread type"
#endif
#include <signal.h>
#ifndef NSIG
# ifdef DJGPP
# define NSIG SIGMAX
# else
# define NSIG (_SIGMAX + 1) /* For QNX */
# endif
#endif
#define RUBY_NSIG NSIG
/*****************/
/* 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 */
#define YARV_AOT_COMPILED 1
#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 */
#define YARVDEBUG 0
#define CPDEBUG 0
#define VMDEBUG 0
#define GCDEBUG 0
/* classes and modules */
extern VALUE symIFUNC;
extern VALUE symCFUNC;
/* special id */
extern ID idPLUS;
extern ID idMINUS;
extern ID idMULT;
extern ID idDIV;
extern ID idMOD;
extern ID idLT;
extern ID idLTLT;
extern ID idLE;
extern ID idGT;
extern ID idGE;
extern ID idEq;
extern ID idEqq;
extern ID idBackquote;
extern ID idEqTilde;
extern ID idThrowState;
extern ID idAREF;
extern ID idASET;
extern ID idIntern;
extern ID idMethodMissing;
extern ID idLength;
extern ID idGets;
extern ID idSucc;
extern ID idEach;
extern ID idLambda;
extern ID idRangeEachLT;
extern ID idRangeEachLE;
extern ID idArrayEach;
extern ID idTimes;
extern ID idEnd;
extern ID idBitblt;
extern ID idAnswer;
extern ID idSvarPlaceholder;
extern ID idSend;
extern ID id__send__;
extern ID id__send;
extern ID idFuncall;
extern ID id__send_bang;
struct insn_info_struct {
unsigned short position;
unsigned short line_no;
};
#define ISEQ_TYPE_TOP INT2FIX(1)
#define ISEQ_TYPE_METHOD INT2FIX(2)
#define ISEQ_TYPE_BLOCK INT2FIX(3)
#define ISEQ_TYPE_CLASS INT2FIX(4)
#define ISEQ_TYPE_RESCUE INT2FIX(5)
#define ISEQ_TYPE_ENSURE INT2FIX(6)
#define ISEQ_TYPE_EVAL INT2FIX(7)
#define ISEQ_TYPE_DEFINED_GUARD INT2FIX(8)
#define CATCH_TYPE_RESCUE INT2FIX(1)
#define CATCH_TYPE_ENSURE INT2FIX(2)
#define CATCH_TYPE_RETRY INT2FIX(3)
#define CATCH_TYPE_BREAK INT2FIX(4)
#define CATCH_TYPE_REDO INT2FIX(5)
#define CATCH_TYPE_NEXT INT2FIX(6)
struct catch_table_entry {
VALUE type;
VALUE iseq;
unsigned long start;
unsigned long end;
unsigned long cont;
unsigned long sp;
};
#define INITIAL_ISEQ_COMPILE_DATA_STORAGE_BUFF_SIZE (512)
struct iseq_compile_data_storage {
struct iseq_compile_data_storage *next;
unsigned long pos;
unsigned long size;
char *buff;
};
struct iseq_compile_data_ensure_node_stack;
typedef struct rb_compile_option_struct {
int inline_const_cache;
int peephole_optimization;
int tailcall_optimization;
int specialized_instruction;
int operands_unification;
int instructions_unification;
int stack_caching;
int trace_instruction;
} rb_compile_option_t;
struct iseq_compile_data {
/* GC is needed */
VALUE err_info;
VALUE mark_ary;
VALUE catch_table_ary; /* Array */
/* GC is not needed */
struct iseq_label_data *start_label;
struct iseq_label_data *end_label;
struct iseq_label_data *redo_label;
VALUE current_block;
VALUE loopval_popped; /* used by NODE_BREAK */
VALUE ensure_node;
VALUE for_iseq;
struct iseq_compile_data_ensure_node_stack *ensure_node_stack;
int cached_const;
struct iseq_compile_data_storage *storage_head;
struct iseq_compile_data_storage *storage_current;
int last_line;
const rb_compile_option_t *option;
};
#define GetISeqPtr(obj, ptr) Data_Get_Struct(obj, rb_iseq_t, ptr)
typedef struct rb_iseq_profile_struct {
VALUE count;
VALUE time_self;
VALUE time_cumu; /* cumulative */
} rb_iseq_profile_t;
struct rb_iseq_struct;
struct rb_iseq_struct {
/* instruction sequence type */
VALUE type;
VALUE self;
VALUE name; /* String: iseq name */
VALUE *iseq; /* iseq */
VALUE *iseq_encoded;
VALUE iseq_mark_ary; /* Array: includes operands which should be GC marked */
/* sequence size */
unsigned long size;
/* insn info, must be freed */
struct insn_info_struct *insn_info_tbl;
/* insn info size, this value shows also instruction count */
unsigned int insn_info_size;
/* file information where this sequence from */
VALUE filename;
ID *local_table; /* must free */
int local_table_size;
/* method, class frame: sizeof(vars) + 1, block frame: sizeof(vars) */
int local_size;
/* jit compiled or not */
void *jit_compiled;
void *iseq_orig;
/**
* argument information
*
* def m(a1, a2, ..., aM, b1=(...), b2=(...), ..., bN=(...), *c, &d)
* =>
*
* argc = M
* arg_rest = M+N + 1 // if no rest arguments, rest is 0
* arg_opts = N
* arg_opts_tbl = [ (N entries) ]
* arg_block = M+N + 1 (rest) + 1 (block)
* check:
* M <= num
*/
int argc;
int arg_simple;
int arg_rest;
int arg_block;
int arg_opts;
int arg_post_len;
VALUE *arg_opt_tbl;
/* for stack overflow check */
int stack_max;
/* klass/module nest information stack (cref) */
NODE *cref_stack;
VALUE klass;
/* catch table */
struct catch_table_entry *catch_table;
int catch_table_size;
/* for child iseq */
struct rb_iseq_struct *parent_iseq;
struct rb_iseq_struct *local_iseq;
/* block inlining */
NODE *node;
void *special_block_builder;
void *cached_special_block_builder;
VALUE cached_special_block;
/* misc */
ID defined_method_id; /* for define_method */
rb_iseq_profile_t profile;
struct iseq_compile_data *compile_data;
};
typedef struct rb_iseq_struct rb_iseq_t;
#define RUBY_EVENT_NONE 0x00
#define RUBY_EVENT_LINE 0x01
#define RUBY_EVENT_CLASS 0x02
#define RUBY_EVENT_END 0x04
#define RUBY_EVENT_CALL 0x08
#define RUBY_EVENT_RETURN 0x10
#define RUBY_EVENT_C_CALL 0x20
#define RUBY_EVENT_C_RETURN 0x40
#define RUBY_EVENT_RAISE 0x80
#define RUBY_EVENT_ALL 0xff
#define RUBY_EVENT_VM 0x100
#define RUBY_EVENT_SWITCH 0x200
typedef unsigned int rb_event_flag_t;
typedef void (*rb_event_hook_func_t)(rb_event_flag_t, VALUE data, VALUE, ID, VALUE klass);
typedef struct rb_event_hook_struct {
rb_event_flag_t flag;
rb_event_hook_func_t func;
VALUE data;
struct rb_event_hook_struct *next;
} rb_event_hook_t;
#define GetVMPtr(obj, ptr) \
Data_Get_Struct(obj, rb_vm_t, ptr)
typedef struct rb_vm_struct {
VALUE self;
rb_thread_lock_t global_interpreter_lock;
struct rb_thread_struct *main_thread;
struct rb_thread_struct *running_thread;
st_table *living_threads;
VALUE thgroup_default;
VALUE last_status; /* $? */
int thread_abort_on_exception;
unsigned long trace_flag;
/* object management */
VALUE mark_object_ary;
/* load */
VALUE loaded_features;
struct st_table *loading_table;
/* signal */
rb_atomic_t signal_buff[RUBY_NSIG];
rb_atomic_t bufferd_signal_size;
/* hook */
rb_event_hook_t *event_hooks;
} rb_vm_t;
typedef struct {
VALUE *pc; /* cfp[0] */
VALUE *sp; /* cfp[1] */
VALUE *bp; /* cfp[2] */
rb_iseq_t *iseq; /* cfp[3] */
VALUE magic; /* 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] */
ID method_id; /* cfp[10] saved in special case */
VALUE method_klass; /* cfp[11] saved in special case */
VALUE prof_time_self; /* cfp[12] */
VALUE prof_time_chld; /* cfp[13] */
} rb_control_frame_t;
typedef 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;
#define GetThreadPtr(obj, ptr) \
Data_Get_Struct(obj, rb_thread_t, ptr)
enum rb_thread_status {
THREAD_TO_KILL,
THREAD_RUNNABLE,
THREAD_STOPPED,
THREAD_KILLED,
};
typedef 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_trap_tag {
struct rb_vm_trap_tag *prev;
};
#define RUBY_VM_VALUE_CACHE_SIZE 0x1000
#define USE_VALUE_CACHE 0
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;
/* passing state */
int state;
/* for rb_iterate */
rb_block_t *passed_block;
/* 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;
VALUE thgroup;
VALUE value;
VALUE errinfo;
VALUE thrown_errinfo;
int exec_signal;
int interrupt_flag;
rb_unblock_function_t *unblock_function;
rb_thread_lock_t interrupt_lock;
struct rb_vm_tag *tag;
struct rb_vm_trap_tag *trap_tag;
int parse_in_eval;
/* storage */
st_table *local_storage;
#if USE_VALUE_CACHE
VALUE value_cache[RUBY_VM_VALUE_CACHE_SIZE + 1];
VALUE *value_cache_ptr;
#endif
struct rb_thread_struct *join_list_next;
struct rb_thread_struct *join_list_head;
VALUE first_proc;
VALUE first_args;
VALUE (*first_func)(ANYARGS);
void *first_func_arg;
/* for GC */
VALUE *machine_stack_start;
VALUE *machine_stack_end;
#ifdef __ia64
VALUE *machine_register_stack_start;
VALUE *machine_register_stack_end;
#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;
};
/** node -> yarv instruction sequence object */
VALUE rb_iseq_compile(VALUE self, NODE *node);
VALUE rb_iseq_new(NODE*, VALUE, VALUE, VALUE, VALUE);
VALUE rb_iseq_new_with_bopt(NODE*, VALUE, VALUE, VALUE, VALUE, VALUE);
VALUE rb_iseq_new_with_opt(NODE*, VALUE, VALUE, VALUE, VALUE, const rb_compile_option_t*);
/** disassemble instruction sequence */
VALUE ruby_iseq_disasm(VALUE self);
VALUE ruby_iseq_disasm_insn(VALUE str, VALUE *iseqval, int pos,
rb_iseq_t *iseq, VALUE child);
char *ruby_node_name(int node);
/* each thread has this size stack : 2MB */
#define RUBY_VM_THREAD_STACK_SIZE (128 * 1024)
/* from ruby 1.9 variable.c */
struct global_entry {
struct global_variable *var;
ID id;
};
#define GetProcPtr(obj, ptr) \
Data_Get_Struct(obj, rb_proc_t, ptr)
typedef struct {
rb_block_t block;
VALUE envval; /* for GC mark */
VALUE blockprocval;
int safe_level;
int is_lambda;
NODE *special_cref_stack;
} rb_proc_t;
#define GetEnvPtr(obj, ptr) \
Data_Get_Struct(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) \
Data_Get_Struct(obj, rb_binding_t, ptr)
typedef struct {
VALUE env;
NODE *cref_stack;
} 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_SEND_BIT (0x01 << 8)
/* inline (method|const) cache */
#define NEW_INLINE_CACHE_ENTRY() NEW_WHILE(Qundef, 0, 0)
#define ic_klass u1.value
#define ic_method u2.node
#define ic_value u2.value
#define ic_vmstat u3.cnt
typedef NODE *IC;
void rb_vm_change_state(void);
typedef VALUE CDHASH;
#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_METHOD_NODE NODE_METHOD
#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_CLASS_SPECIAL_P(ptr) (((VALUE)(ptr)) & 0x02)
#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))
/* defined? */
#define DEFINED_IVAR INT2FIX(1)
#define DEFINED_IVAR2 INT2FIX(2)
#define DEFINED_GVAR INT2FIX(3)
#define DEFINED_CVAR INT2FIX(4)
#define DEFINED_CONST INT2FIX(5)
#define DEFINED_METHOD INT2FIX(6)
#define DEFINED_YIELD INT2FIX(7)
#define DEFINED_REF INT2FIX(8)
#define DEFINED_ZSUPER INT2FIX(9)
#define DEFINED_FUNC INT2FIX(10)
/* VM related object allocate functions */
/* TODO: should be static functions */
VALUE rb_thread_alloc(VALUE klass);
VALUE rb_proc_alloc(void);
/* for debug */
extern void vm_stack_dump_raw(rb_thread_t *, rb_control_frame_t *);
#define SDR() vm_stack_dump_raw(GET_THREAD(), GET_THREAD()->cfp)
#define SDR2(cfp) vm_stack_dump_raw(GET_THREAD(), (cfp))
void yarv_bug(void);
/* functions about thread/vm execution */
VALUE rb_thread_eval(rb_thread_t *th, VALUE iseqval);
void rb_enable_interrupt(void);
void rb_disable_interrupt(void);
int rb_thread_method_id_and_klass(rb_thread_t *th, ID *idp, VALUE *klassp);
VALUE th_eval_body(rb_thread_t *th);
VALUE th_set_eval_stack(rb_thread_t *, VALUE iseq);
VALUE th_invoke_proc(rb_thread_t *th, rb_proc_t *proc, VALUE self, int argc, VALUE *argv);
VALUE th_make_proc(rb_thread_t *th, rb_control_frame_t *cfp, rb_block_t *block);
VALUE th_make_env_object(rb_thread_t *th, rb_control_frame_t *cfp);
VALUE th_backtrace(rb_thread_t *, int);
VALUE th_yield(rb_thread_t *th, int argc, VALUE *argv);
VALUE th_call0(rb_thread_t *th, VALUE klass, VALUE recv,
VALUE id, ID oid, int argc, const VALUE *argv,
NODE * body, int nosuper);
int th_get_sourceline(rb_control_frame_t *);
VALUE yarvcore_eval_parsed(NODE *node, VALUE file);
VALUE yarvcore_eval(VALUE self, VALUE str, VALUE file, VALUE line);
/* for thread */
#if RUBY_VM_THREAD_MODEL == 2
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) (ruby_current_thread = th)
#define rb_thread_set_current(th) do { \
rb_thread_set_current_raw(th); \
th->vm->running_thread = th; \
} while (0)
#else
#error "unsupported thread model"
#endif
void rb_thread_execute_interrupts(rb_thread_t *);
#define RUBY_VM_CHECK_INTS_TH(th) do { \
if(th->interrupt_flag){ \
/* TODO: trap something event */ \
rb_thread_execute_interrupts(th); \
} \
} while (0)
#define RUBY_VM_CHECK_INTS() \
RUBY_VM_CHECK_INTS_TH(GET_THREAD())
#endif /* _YARVCORE_H_INCLUDED_ */
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