diff options
Diffstat (limited to 'trunk/iseq.c')
| -rw-r--r-- | trunk/iseq.c | 1341 |
1 files changed, 0 insertions, 1341 deletions
diff --git a/trunk/iseq.c b/trunk/iseq.c deleted file mode 100644 index b9641763da..0000000000 --- a/trunk/iseq.c +++ /dev/null @@ -1,1341 +0,0 @@ -/********************************************************************** - - iseq.c - - - $Author$ - created at: 2006-07-11(Tue) 09:00:03 +0900 - - Copyright (C) 2006 Koichi Sasada - -**********************************************************************/ - -#include "ruby/ruby.h" -#include "ruby/node.h" - -/* #define MARK_FREE_DEBUG 1 */ -#include "gc.h" -#include "vm_core.h" - -#include "insns.inc" -#include "insns_info.inc" - -/* compile.c */ -void iseq_compile(VALUE self, NODE *node); -int iseq_translate_threaded_code(rb_iseq_t *iseq); - -VALUE rb_cISeq; - -static void -compile_data_free(struct iseq_compile_data *compile_data) -{ - if (compile_data) { - struct iseq_compile_data_storage *cur, *next; - cur = compile_data->storage_head; - while (cur) { - next = cur->next; - ruby_xfree(cur); - cur = next; - } - ruby_xfree(compile_data); - } -} - -static void -iseq_free(void *ptr) -{ - rb_iseq_t *iseq; - RUBY_FREE_ENTER("iseq"); - - if (ptr) { - iseq = ptr; - if (!iseq->orig) { - /* It's possible that strings are freed - * GC_INFO("%s @ %s\n", RSTRING_PTR(iseq->name), - * RSTRING_PTR(iseq->filename)); - */ - if (iseq->iseq != iseq->iseq_encoded) { - RUBY_FREE_UNLESS_NULL(iseq->iseq_encoded); - } - - RUBY_FREE_UNLESS_NULL(iseq->iseq); - RUBY_FREE_UNLESS_NULL(iseq->insn_info_table); - RUBY_FREE_UNLESS_NULL(iseq->local_table); - RUBY_FREE_UNLESS_NULL(iseq->catch_table); - RUBY_FREE_UNLESS_NULL(iseq->arg_opt_table); - compile_data_free(iseq->compile_data); - } - ruby_xfree(ptr); - } - RUBY_FREE_LEAVE("iseq"); -} - -static void -iseq_mark(void *ptr) -{ - rb_iseq_t *iseq; - RUBY_MARK_ENTER("iseq"); - - if (ptr) { - iseq = ptr; - RUBY_GC_INFO("%s @ %s\n", RSTRING_PTR(iseq->name), RSTRING_PTR(iseq->filename)); - RUBY_MARK_UNLESS_NULL(iseq->mark_ary); - RUBY_MARK_UNLESS_NULL(iseq->name); - RUBY_MARK_UNLESS_NULL(iseq->filename); - RUBY_MARK_UNLESS_NULL((VALUE)iseq->cref_stack); - RUBY_MARK_UNLESS_NULL(iseq->klass); - RUBY_MARK_UNLESS_NULL(iseq->coverage); -/* RUBY_MARK_UNLESS_NULL((VALUE)iseq->node); */ -/* RUBY_MARK_UNLESS_NULL(iseq->cached_special_block); */ - RUBY_MARK_UNLESS_NULL(iseq->orig); - - if (iseq->compile_data != 0) { - RUBY_MARK_UNLESS_NULL(iseq->compile_data->mark_ary); - RUBY_MARK_UNLESS_NULL(iseq->compile_data->err_info); - RUBY_MARK_UNLESS_NULL(iseq->compile_data->catch_table_ary); - } - } - RUBY_MARK_LEAVE("iseq"); -} - -static VALUE -iseq_alloc(VALUE klass) -{ - VALUE volatile obj; - rb_iseq_t *iseq; - - obj = Data_Make_Struct(klass, rb_iseq_t, iseq_mark, iseq_free, iseq); - MEMZERO(iseq, rb_iseq_t, 1); - return obj; -} - -static void -set_relation(rb_iseq_t *iseq, const VALUE parent) -{ - const int type = iseq->type; - rb_thread_t *th = GET_THREAD(); - - /* set class nest stack */ - if (type == ISEQ_TYPE_TOP) { - /* toplevel is private */ - iseq->cref_stack = NEW_BLOCK(th->top_wrapper ? th->top_wrapper : rb_cObject); - iseq->cref_stack->nd_file = 0; - iseq->cref_stack->nd_visi = NOEX_PRIVATE; - } - else if (type == ISEQ_TYPE_METHOD || type == ISEQ_TYPE_CLASS) { - iseq->cref_stack = NEW_BLOCK(0); /* place holder */ - iseq->cref_stack->nd_file = 0; - } - else if (RTEST(parent)) { - rb_iseq_t *piseq; - GetISeqPtr(parent, piseq); - iseq->cref_stack = piseq->cref_stack; - } - - if (type == ISEQ_TYPE_TOP || - type == ISEQ_TYPE_METHOD || type == ISEQ_TYPE_CLASS) { - iseq->local_iseq = iseq; - } - else if (RTEST(parent)) { - rb_iseq_t *piseq; - GetISeqPtr(parent, piseq); - iseq->local_iseq = piseq->local_iseq; - } - - if (RTEST(parent)) { - rb_iseq_t *piseq; - GetISeqPtr(parent, piseq); - iseq->parent_iseq = piseq; - } -} - -static VALUE -prepare_iseq_build(rb_iseq_t *iseq, - VALUE name, VALUE filename, - VALUE parent, VALUE type, VALUE block_opt, - const rb_compile_option_t *option) -{ - OBJ_FREEZE(name); - OBJ_FREEZE(filename); - - iseq->name = name; - iseq->filename = filename; - iseq->defined_method_id = 0; - iseq->mark_ary = rb_ary_new(); - RBASIC(iseq->mark_ary)->klass = 0; - - iseq->type = type; - iseq->arg_rest = -1; - iseq->arg_block = -1; - iseq->klass = 0; - - /* - * iseq->special_block_builder = GC_GUARDED_PTR_REF(block_opt); - * iseq->cached_special_block_builder = 0; - * iseq->cached_special_block = 0; - */ - - iseq->compile_data = ALLOC(struct iseq_compile_data); - MEMZERO(iseq->compile_data, struct iseq_compile_data, 1); - iseq->compile_data->mark_ary = rb_ary_new(); - RBASIC(iseq->compile_data->mark_ary)->klass = 0; - - iseq->compile_data->storage_head = iseq->compile_data->storage_current = - (struct iseq_compile_data_storage *) - ALLOC_N(char, INITIAL_ISEQ_COMPILE_DATA_STORAGE_BUFF_SIZE + - sizeof(struct iseq_compile_data_storage)); - - iseq->compile_data->catch_table_ary = rb_ary_new(); - iseq->compile_data->storage_head->pos = 0; - iseq->compile_data->storage_head->next = 0; - iseq->compile_data->storage_head->size = - INITIAL_ISEQ_COMPILE_DATA_STORAGE_BUFF_SIZE; - iseq->compile_data->storage_head->buff = - (char *)(&iseq->compile_data->storage_head->buff + 1); - iseq->compile_data->option = option; - - set_relation(iseq, parent); - - iseq->coverage = Qfalse; - if (!GET_THREAD()->parse_in_eval) { - extern VALUE rb_get_coverages(void); - VALUE coverages = rb_get_coverages(); - if (RTEST(coverages)) { - iseq->coverage = rb_hash_lookup(coverages, filename); - if (NIL_P(iseq->coverage)) iseq->coverage = Qfalse; - } - } - - return Qtrue; -} - -static VALUE -cleanup_iseq_build(rb_iseq_t *iseq) -{ - struct iseq_compile_data *data = iseq->compile_data; - VALUE err = data->err_info; - iseq->compile_data = 0; - compile_data_free(data); - - if (RTEST(err)) { - rb_funcall2(err, rb_intern("set_backtrace"), 1, &iseq->filename); - rb_exc_raise(err); - } - return Qtrue; -} - -static rb_compile_option_t COMPILE_OPTION_DEFAULT = { - OPT_INLINE_CONST_CACHE, /* int inline_const_cache; */ - OPT_PEEPHOLE_OPTIMIZATION, /* int peephole_optimization; */ - OPT_TAILCALL_OPTIMIZATION, /* int tailcall_optimization */ - OPT_SPECIALISED_INSTRUCTION, /* int specialized_instruction; */ - OPT_OPERANDS_UNIFICATION, /* int operands_unification; */ - OPT_INSTRUCTIONS_UNIFICATION, /* int instructions_unification; */ - OPT_STACK_CACHING, /* int stack_caching; */ - OPT_TRACE_INSTRUCTION, /* int trace_instruction */ -}; -static const rb_compile_option_t COMPILE_OPTION_FALSE = {0}; - -static void -make_compile_option(rb_compile_option_t *option, VALUE opt) -{ - if (opt == Qnil) { - *option = COMPILE_OPTION_DEFAULT; - } - else if (opt == Qfalse) { - *option = COMPILE_OPTION_FALSE; - } - else if (opt == Qtrue) { - memset(option, 1, sizeof(rb_compile_option_t)); - } - else if (CLASS_OF(opt) == rb_cHash) { - *option = COMPILE_OPTION_DEFAULT; - -#define SET_COMPILE_OPTION(o, h, mem) \ - { VALUE flag = rb_hash_aref(h, ID2SYM(rb_intern(#mem))); \ - if (flag == Qtrue) { o->mem = 1; } \ - else if (flag == Qfalse) { o->mem = 0; } \ - } -#define SET_COMPILE_OPTION_NUM(o, h, mem) \ - { VALUE num = rb_hash_aref(opt, ID2SYM(rb_intern(#mem))); \ - if (!NIL_P(num)) o->mem = NUM2INT(num); \ - } - SET_COMPILE_OPTION(option, opt, inline_const_cache); - SET_COMPILE_OPTION(option, opt, peephole_optimization); - SET_COMPILE_OPTION(option, opt, tailcall_optimization); - SET_COMPILE_OPTION(option, opt, specialized_instruction); - SET_COMPILE_OPTION(option, opt, operands_unification); - SET_COMPILE_OPTION(option, opt, instructions_unification); - SET_COMPILE_OPTION(option, opt, stack_caching); - SET_COMPILE_OPTION(option, opt, trace_instruction); - SET_COMPILE_OPTION_NUM(option, opt, debug_level); -#undef SET_COMPILE_OPTION -#undef SET_COMPILE_OPTION_NUM - } - else { - rb_raise(rb_eTypeError, "Compile option must be Hash/true/false/nil"); - } -} - -static VALUE -make_compile_option_value(rb_compile_option_t *option) -{ - VALUE opt = rb_hash_new(); -#define SET_COMPILE_OPTION(o, h, mem) \ - rb_hash_aset(h, ID2SYM(rb_intern(#mem)), o->mem ? Qtrue : Qfalse) -#define SET_COMPILE_OPTION_NUM(o, h, mem) \ - rb_hash_aset(h, ID2SYM(rb_intern(#mem)), INT2NUM(o->mem)) - { - SET_COMPILE_OPTION(option, opt, inline_const_cache); - SET_COMPILE_OPTION(option, opt, peephole_optimization); - SET_COMPILE_OPTION(option, opt, tailcall_optimization); - SET_COMPILE_OPTION(option, opt, specialized_instruction); - SET_COMPILE_OPTION(option, opt, operands_unification); - SET_COMPILE_OPTION(option, opt, instructions_unification); - SET_COMPILE_OPTION(option, opt, stack_caching); - SET_COMPILE_OPTION_NUM(option, opt, debug_level); - } -#undef SET_COMPILE_OPTION -#undef SET_COMPILE_OPTION_NUM - return opt; -} - -VALUE -rb_iseq_new(NODE *node, VALUE name, VALUE filename, - VALUE parent, VALUE type) -{ - return rb_iseq_new_with_opt(node, name, filename, parent, type, - &COMPILE_OPTION_DEFAULT); -} - -static VALUE -rb_iseq_new_with_bopt_and_opt(NODE *node, VALUE name, VALUE filename, - VALUE parent, VALUE type, VALUE bopt, - const rb_compile_option_t *option) -{ - rb_iseq_t *iseq; - VALUE self = iseq_alloc(rb_cISeq); - - GetISeqPtr(self, iseq); - iseq->self = self; - - prepare_iseq_build(iseq, name, filename, parent, type, bopt, option); - iseq_compile(self, node); - cleanup_iseq_build(iseq); - return self; -} - -VALUE -rb_iseq_new_with_opt(NODE *node, VALUE name, VALUE filename, - VALUE parent, VALUE type, - const rb_compile_option_t *option) -{ - return rb_iseq_new_with_bopt_and_opt(node, name, filename, parent, type, - Qfalse, option); -} - -VALUE -rb_iseq_new_with_bopt(NODE *node, VALUE name, VALUE filename, - VALUE parent, VALUE type, VALUE bopt) -{ - return rb_iseq_new_with_bopt_and_opt(node, name, filename, parent, type, - bopt, &COMPILE_OPTION_DEFAULT); -} - -VALUE iseq_build_from_ary(rb_iseq_t *iseq, VALUE locals, VALUE args, - VALUE exception, VALUE body); - -#define CHECK_ARRAY(v) rb_convert_type(v, T_ARRAY, "Array", "to_ary") -#define CHECK_STRING(v) rb_convert_type(v, T_STRING, "String", "to_str") -#define CHECK_SYMBOL(v) rb_convert_type(v, T_SYMBOL, "Symbol", "to_sym") -static inline VALUE CHECK_INTEGER(VALUE v) {NUM2LONG(v); return v;} -VALUE -iseq_load(VALUE self, VALUE data, VALUE parent, VALUE opt) -{ - VALUE iseqval = iseq_alloc(rb_cISeq); - - VALUE magic, version1, version2, format_type, misc; - VALUE name, filename; - VALUE type, body, locals, args, exception; - - VALUE iseq_type; - struct st_table *type_map = 0; - rb_iseq_t *iseq; - rb_compile_option_t option; - int i = 0; - - /* [magic, major_version, minor_version, format_type, misc, - * name, filename, - * type, locals, args, exception_table, body] - */ - - data = CHECK_ARRAY(data); - - magic = CHECK_STRING(rb_ary_entry(data, i++)); - version1 = CHECK_INTEGER(rb_ary_entry(data, i++)); - version2 = CHECK_INTEGER(rb_ary_entry(data, i++)); - format_type = CHECK_INTEGER(rb_ary_entry(data, i++)); - misc = rb_ary_entry(data, i++); /* TODO */ - - name = CHECK_STRING(rb_ary_entry(data, i++)); - filename = CHECK_STRING(rb_ary_entry(data, i++)); - - type = CHECK_SYMBOL(rb_ary_entry(data, i++)); - locals = CHECK_ARRAY(rb_ary_entry(data, i++)); - - args = rb_ary_entry(data, i++); - if (FIXNUM_P(args) || (args = CHECK_ARRAY(args))) { - /* */ - } - - exception = CHECK_ARRAY(rb_ary_entry(data, i++)); - body = CHECK_ARRAY(rb_ary_entry(data, i++)); - - GetISeqPtr(iseqval, iseq); - iseq->self = iseqval; - - if (type_map == 0) { - type_map = st_init_numtable(); - st_insert(type_map, ID2SYM(rb_intern("top")), ISEQ_TYPE_TOP); - st_insert(type_map, ID2SYM(rb_intern("method")), ISEQ_TYPE_METHOD); - st_insert(type_map, ID2SYM(rb_intern("block")), ISEQ_TYPE_BLOCK); - st_insert(type_map, ID2SYM(rb_intern("class")), ISEQ_TYPE_CLASS); - st_insert(type_map, ID2SYM(rb_intern("rescue")), ISEQ_TYPE_RESCUE); - st_insert(type_map, ID2SYM(rb_intern("ensure")), ISEQ_TYPE_ENSURE); - st_insert(type_map, ID2SYM(rb_intern("eval")), ISEQ_TYPE_EVAL); - st_insert(type_map, ID2SYM(rb_intern("defined_guard")), ISEQ_TYPE_DEFINED_GUARD); - } - - if (st_lookup(type_map, type, &iseq_type) == 0) { - const char *typename = rb_id2name(type); - if (typename) - rb_raise(rb_eTypeError, "unsupport type: :%s", typename); - else - rb_raise(rb_eTypeError, "unsupport type: %p", (void *)type); - } - - if (parent == Qnil) { - parent = 0; - } - - make_compile_option(&option, opt); - prepare_iseq_build(iseq, name, filename, - parent, iseq_type, 0, &option); - - iseq_build_from_ary(iseq, locals, args, exception, body); - - cleanup_iseq_build(iseq); - return iseqval; -} - -static VALUE -iseq_s_load(int argc, VALUE *argv, VALUE self) -{ - VALUE data, opt=Qnil; - rb_scan_args(argc, argv, "11", &data, &opt); - - return iseq_load(self, data, 0, opt); -} - -static NODE * -compile_string(VALUE str, VALUE file, VALUE line) -{ - VALUE parser = rb_parser_new(); - NODE *node = rb_parser_compile_string(parser, StringValueCStr(file), - str, NUM2INT(line)); - - if (!node) { - rb_exc_raise(GET_THREAD()->errinfo); /* TODO: check err */ - } - return node; -} - -VALUE -rb_iseq_compile_with_option(VALUE src, VALUE file, VALUE line, VALUE opt) -{ - rb_compile_option_t option; - NODE *node = compile_string(StringValue(src), file, line); - rb_thread_t *th = GET_THREAD(); - make_compile_option(&option, opt); - - if (th->base_block && th->base_block->iseq) { - return rb_iseq_new_with_opt(node, th->base_block->iseq->name, - file, th->base_block->iseq->self, - ISEQ_TYPE_EVAL, &option); - } - else { - return rb_iseq_new_with_opt(node, rb_str_new2("<compiled>"), file, Qfalse, - ISEQ_TYPE_TOP, &option); - } -} - -VALUE -rb_iseq_compile(VALUE src, VALUE file, VALUE line) -{ - return rb_iseq_compile_with_option(src, file, line, Qnil); -} - -static VALUE -iseq_s_compile(int argc, VALUE *argv, VALUE self) -{ - VALUE src, file = Qnil, line = INT2FIX(1), opt = Qnil; - - rb_secure(1); - - rb_scan_args(argc, argv, "13", &src, &file, &line, &opt); - file = file == Qnil ? rb_str_new2("<compiled>") : file; - line = line == Qnil ? INT2FIX(1) : line; - - return rb_iseq_compile_with_option(src, file, line, opt); -} - -static VALUE -iseq_s_compile_file(int argc, VALUE *argv, VALUE self) -{ - VALUE file, line = INT2FIX(1), opt = Qnil; - VALUE parser; - VALUE f; - NODE *node; - const char *fname; - rb_compile_option_t option; - - rb_secure(1); - rb_scan_args(argc, argv, "11", &file, &opt); - fname = StringValueCStr(file); - - f = rb_file_open(fname, "r"); - - parser = rb_parser_new(); - node = rb_parser_compile_file(parser, fname, f, NUM2INT(line)); - make_compile_option(&option, opt); - return rb_iseq_new_with_opt(node, rb_str_new2("<main>"), file, Qfalse, - ISEQ_TYPE_TOP, &option); -} - -static VALUE -iseq_s_compile_option_set(VALUE self, VALUE opt) -{ - rb_compile_option_t option; - rb_secure(1); - make_compile_option(&option, opt); - COMPILE_OPTION_DEFAULT = option; - return opt; -} - -static VALUE -iseq_s_compile_option_get(VALUE self) -{ - return make_compile_option_value(&COMPILE_OPTION_DEFAULT); -} - -static rb_iseq_t * -iseq_check(VALUE val) -{ - rb_iseq_t *iseq; - GetISeqPtr(val, iseq); - if (!iseq->name) { - rb_raise(rb_eTypeError, "uninitialized InstructionSequence"); - } - return iseq; -} - -static VALUE -iseq_eval(VALUE self) -{ - rb_secure(1); - return rb_iseq_eval(self); -} - -static VALUE -iseq_inspect(VALUE self) -{ - rb_iseq_t *iseq; - GetISeqPtr(self, iseq); - if (!iseq->name) { - return rb_sprintf("#<%s: uninitialized>", rb_obj_classname(self)); - } - - return rb_sprintf("<%s:%s@%s>", - rb_obj_classname(self), - RSTRING_PTR(iseq->name), RSTRING_PTR(iseq->filename)); -} - -VALUE iseq_data_to_ary(rb_iseq_t *iseq); - -static VALUE -iseq_to_a(VALUE self) -{ - rb_iseq_t *iseq = iseq_check(self); - rb_secure(1); - return iseq_data_to_ary(iseq); -} - -/* TODO: search algorithm is brute force. - this should be binary search or so. */ - -static struct iseq_insn_info_entry * -get_insn_info(const rb_iseq_t *iseq, const unsigned long pos) -{ - unsigned long i, size = iseq->insn_info_size; - struct iseq_insn_info_entry *table = iseq->insn_info_table; - - for (i = 0; i < size; i++) { - if (table[i].position == pos) { - return &table[i]; - } - } - - return 0; -} - -static unsigned short -find_line_no(rb_iseq_t *iseq, unsigned long pos) -{ - struct iseq_insn_info_entry *entry = get_insn_info(iseq, pos); - if (entry) { - return entry->line_no; - } - else { - return 0; - } -} - -static unsigned short -find_prev_line_no(rb_iseq_t *iseqdat, unsigned long pos) -{ - unsigned long i, size = iseqdat->insn_info_size; - struct iseq_insn_info_entry *iiary = iseqdat->insn_info_table; - - for (i = 0; i < size; i++) { - if (iiary[i].position == pos) { - if (i > 0) { - return iiary[i - 1].line_no; - } - else { - return 0; - } - } - } - - return 0; -} - -static VALUE -insn_operand_intern(rb_iseq_t *iseq, - int insn, int op_no, VALUE op, - int len, int pos, VALUE *pnop, VALUE child) -{ - const char *types = insn_op_types(insn); - char type = types[op_no]; - VALUE ret; - - switch (type) { - case TS_OFFSET: /* LONG */ - ret = rb_sprintf("%ld", pos + len + op); - break; - - case TS_NUM: /* ULONG */ - ret = rb_sprintf("%lu", op); - break; - - case TS_LINDEX: - { - rb_iseq_t *ip = iseq->local_iseq; - int lidx = ip->local_size - op; - const char *name = rb_id2name(ip->local_table[lidx]); - - if (name) { - ret = rb_str_new2(name); - } - else { - ret = rb_str_new2("*"); - } - break; - } - case TS_DINDEX:{ - if (insn == BIN(getdynamic) || insn == BIN(setdynamic)) { - rb_iseq_t *ip = iseq; - int level = *pnop, i; - const char *name; - for (i = 0; i < level; i++) { - ip = ip->parent_iseq; - } - name = rb_id2name(ip->local_table[ip->local_size - op]); - - if (!name) { - name = "*"; - } - ret = rb_str_new2(name); - } - else { - ret = rb_inspect(INT2FIX(op)); - } - break; - } - case TS_ID: /* ID (symbol) */ - op = ID2SYM(op); - - case TS_VALUE: /* VALUE */ - ret = rb_inspect(op); - if (CLASS_OF(op) == rb_cISeq) { - rb_ary_push(child, op); - } - break; - - case TS_ISEQ: /* iseq */ - { - rb_iseq_t *iseq = (rb_iseq_t *)op; - if (iseq) { - ret = iseq->name; - if (child) { - rb_ary_push(child, iseq->self); - } - } - else { - ret = rb_str_new2("nil"); - } - break; - } - case TS_GENTRY: - { - struct global_entry *entry = (struct global_entry *)op; - ret = rb_str_dup(rb_id2str(entry->id)); - } - break; - - case TS_IC: - ret = rb_str_new2("<ic>"); - break; - - case TS_CDHASH: - ret = rb_str_new2("<cdhash>"); - break; - - case TS_FUNCPTR: - ret = rb_str_new2("<funcptr>"); - break; - - default: - rb_bug("ruby_iseq_disasm: unknown operand type: %c", type); - } - return ret; -} - -/** - * Disassemble a instruction - * Iseq -> Iseq inspect object - */ -VALUE -ruby_iseq_disasm_insn(VALUE ret, VALUE *iseq, int pos, - rb_iseq_t *iseqdat, VALUE child) -{ - int insn = iseq[pos]; - int len = insn_len(insn); - int j; - const char *types = insn_op_types(insn); - VALUE str = rb_str_new(0, 0); - const char *insn_name_buff; - - insn_name_buff = insn_name(insn); - if (1) { - rb_str_catf(str, "%04d %-16s ", pos, insn_name_buff); - } - else { - rb_str_catf(str, "%04d %-16.*s ", pos, - (int)strcspn(insn_name_buff, "_"), insn_name_buff); - } - - for (j = 0; types[j]; j++) { - const char *types = insn_op_types(insn); - VALUE opstr = insn_operand_intern(iseqdat, insn, j, iseq[pos + j + 1], - len, pos, &iseq[pos + j + 2], - child); - rb_str_concat(str, opstr); - - if (types[j + 1]) { - rb_str_cat2(str, ", "); - } - } - - if (1) { - int line_no = find_line_no(iseqdat, pos); - int prev = find_prev_line_no(iseqdat, pos); - if (line_no && line_no != prev) { - long slen = RSTRING_LEN(str); - slen = (slen > 70) ? 0 : (70 - slen); - str = rb_str_catf(str, "%*s(%4d)", (int)slen, "", line_no); - } - } - else { - /* for debug */ - struct iseq_insn_info_entry *entry = get_insn_info(iseqdat, pos); - long slen = RSTRING_LEN(str); - slen = (slen > 60) ? 0 : (60 - slen); - str = rb_str_catf(str, "%*s(line: %d, sp: %d)", - (int)slen, "", entry->line_no, entry->sp); - } - - if (ret) { - rb_str_cat2(str, "\n"); - rb_str_concat(ret, str); - } - else { - printf("%s\n", RSTRING_PTR(str)); - } - return len; -} - -static const char * -catch_type(int type) -{ - switch (type) { - case CATCH_TYPE_RESCUE: - return "rescue"; - case CATCH_TYPE_ENSURE: - return "ensure"; - case CATCH_TYPE_RETRY: - return "retry"; - case CATCH_TYPE_BREAK: - return "break"; - case CATCH_TYPE_REDO: - return "redo"; - case CATCH_TYPE_NEXT: - return "next"; - default: - rb_bug("unknown catch type (%d)", type); - return 0; - } -} - -VALUE -ruby_iseq_disasm(VALUE self) -{ - rb_iseq_t *iseqdat = iseq_check(self); - VALUE *iseq; - VALUE str = rb_str_new(0, 0); - VALUE child = rb_ary_new(); - unsigned long size; - int i; - ID *tbl; - enum {header_minlen = 72}; - - rb_secure(1); - - iseq = iseqdat->iseq; - size = iseqdat->iseq_size; - - rb_str_cat2(str, "== disasm: "); - - rb_str_concat(str, iseq_inspect(iseqdat->self)); - if ((i = RSTRING_LEN(str)) < header_minlen) { - rb_str_resize(str, header_minlen); - memset(RSTRING_PTR(str) + i, '=', header_minlen - i); - } - rb_str_cat2(str, "\n"); - - /* show catch table information */ - if (iseqdat->catch_table_size != 0) { - rb_str_cat2(str, "== catch table\n"); - } - for (i = 0; i < iseqdat->catch_table_size; i++) { - struct iseq_catch_table_entry *entry = &iseqdat->catch_table[i]; - rb_str_catf(str, - "| catch type: %-6s st: %04d ed: %04d sp: %04d cont: %04d\n", - catch_type((int)entry->type), (int)entry->start, - (int)entry->end, (int)entry->sp, (int)entry->cont); - if (entry->iseq) { - rb_str_concat(str, ruby_iseq_disasm(entry->iseq)); - } - } - if (iseqdat->catch_table_size != 0) { - rb_str_cat2(str, "|-------------------------------------" - "-----------------------------------\n"); - } - - /* show local table information */ - tbl = iseqdat->local_table; - - if (tbl) { - rb_str_catf(str, - "local table (size: %d, argc: %d " - "[opts: %d, rest: %d, post: %d, block: %d] s%d)\n", - iseqdat->local_size, iseqdat->argc, - iseqdat->arg_opts, iseqdat->arg_rest, - iseqdat->arg_post_len, iseqdat->arg_block, - iseqdat->arg_simple); - - for (i = 0; i < iseqdat->local_table_size; i++) { - const char *name = rb_id2name(tbl[i]); - char info[0x100]; - char argi[0x100] = ""; - char opti[0x100] = ""; - - if (iseqdat->arg_opts) { - int argc = iseqdat->argc; - int opts = iseqdat->arg_opts; - if (i >= argc && i < argc + opts - 1) { - snprintf(opti, sizeof(opti), "Opt=%ld", - iseqdat->arg_opt_table[i - argc]); - } - } - - snprintf(argi, sizeof(argi), "%s%s%s%s%s", /* arg, opts, rest, post block */ - iseqdat->argc > i ? "Arg" : "", - opti, - iseqdat->arg_rest == i ? "Rest" : "", - (iseqdat->arg_post_start <= i && - i < iseqdat->arg_post_start + iseqdat->arg_post_len) ? "Post" : "", - iseqdat->arg_block == i ? "Block" : ""); - - snprintf(info, sizeof(info), "%s%s%s%s", name ? name : "?", - *argi ? "<" : "", argi, *argi ? ">" : ""); - - rb_str_catf(str, "[%2d] %-11s", iseqdat->local_size - i, info); - } - rb_str_cat2(str, "\n"); - } - - /* show each line */ - for (i = 0; i < size;) { - i += ruby_iseq_disasm_insn(str, iseq, i, iseqdat, child); - } - - for (i = 0; i < RARRAY_LEN(child); i++) { - VALUE isv = rb_ary_entry(child, i); - rb_str_concat(str, ruby_iseq_disasm(isv)); - } - - return str; -} - -static VALUE -iseq_s_disasm(VALUE klass, VALUE body) -{ - extern NODE *rb_method_body(VALUE body); - NODE *node; - VALUE ret = Qnil; - - rb_secure(1); - - if ((node = rb_method_body(body)) != 0) { - if (nd_type(node) == RUBY_VM_METHOD_NODE) { - VALUE iseqval = (VALUE)node->nd_body; - ret = ruby_iseq_disasm(iseqval); - } - } - - return ret; -} - -const char * -ruby_node_name(int node) -{ - switch (node) { -#include "node_name.inc" - default: - rb_bug("unknown node (%d)", node); - return 0; - } -} - -#define DECL_SYMBOL(name) \ - static VALUE sym_##name - -#define INIT_SYMBOL(name) \ - sym_##name = ID2SYM(rb_intern(#name)) - -static VALUE -register_label(struct st_table *table, int idx) -{ - VALUE sym; - char buff[8 + (sizeof(idx) * CHAR_BIT * 32 / 100)]; - - snprintf(buff, sizeof(buff), "label_%u", idx); - sym = ID2SYM(rb_intern(buff)); - st_insert(table, idx, sym); - return sym; -} - -static VALUE -exception_type2symbol(VALUE type) -{ - ID id; - switch(type) { - case CATCH_TYPE_RESCUE: CONST_ID(id, "rescue"); break; - case CATCH_TYPE_ENSURE: CONST_ID(id, "ensure"); break; - case CATCH_TYPE_RETRY: CONST_ID(id, "retry"); break; - case CATCH_TYPE_BREAK: CONST_ID(id, "break"); break; - case CATCH_TYPE_REDO: CONST_ID(id, "redo"); break; - case CATCH_TYPE_NEXT: CONST_ID(id, "next"); break; - default: - rb_bug("..."); - } - return ID2SYM(id); -} - -static int -cdhash_each(VALUE key, VALUE value, VALUE ary) -{ - rb_ary_push(ary, key); - rb_ary_push(ary, value); - return ST_CONTINUE; -} - -VALUE -iseq_data_to_ary(rb_iseq_t *iseq) -{ - int i, pos, line = 0; - VALUE *seq; - - VALUE val = rb_ary_new(); - VALUE type; /* Symbol */ - VALUE locals = rb_ary_new(); - VALUE args = rb_ary_new(); - VALUE body = rb_ary_new(); /* [[:insn1, ...], ...] */ - VALUE nbody; - VALUE exception = rb_ary_new(); /* [[....]] */ - VALUE misc = rb_hash_new(); - - static VALUE insn_syms[VM_INSTRUCTION_SIZE]; - struct st_table *labels_table = st_init_numtable(); - - DECL_SYMBOL(top); - DECL_SYMBOL(method); - DECL_SYMBOL(block); - DECL_SYMBOL(class); - DECL_SYMBOL(rescue); - DECL_SYMBOL(ensure); - DECL_SYMBOL(eval); - DECL_SYMBOL(defined_guard); - - if (sym_top == 0) { - int i; - for (i=0; i<VM_INSTRUCTION_SIZE; i++) { - insn_syms[i] = ID2SYM(rb_intern(insn_name(i))); - } - INIT_SYMBOL(top); - INIT_SYMBOL(method); - INIT_SYMBOL(block); - INIT_SYMBOL(class); - INIT_SYMBOL(rescue); - INIT_SYMBOL(ensure); - INIT_SYMBOL(eval); - INIT_SYMBOL(defined_guard); - } - - /* type */ - switch(iseq->type) { - case ISEQ_TYPE_TOP: type = sym_top; break; - case ISEQ_TYPE_METHOD: type = sym_method; break; - case ISEQ_TYPE_BLOCK: type = sym_block; break; - case ISEQ_TYPE_CLASS: type = sym_class; break; - case ISEQ_TYPE_RESCUE: type = sym_rescue; break; - case ISEQ_TYPE_ENSURE: type = sym_ensure; break; - case ISEQ_TYPE_EVAL: type = sym_eval; break; - case ISEQ_TYPE_DEFINED_GUARD: type = sym_defined_guard; break; - default: rb_bug("unsupported iseq type"); - }; - - /* locals */ - for (i=0; i<iseq->local_table_size; i++) { - ID lid = iseq->local_table[i]; - if (lid) { - if (rb_id2str(lid)) rb_ary_push(locals, ID2SYM(lid)); - } - else { - rb_ary_push(locals, ID2SYM(rb_intern("#arg_rest"))); - } - } - - /* args */ - { - /* - * [argc, # argc - * [label1, label2, ...] # opts - * rest index, - * post_len - * post_start - * block index, - * simple, - * ] - */ - VALUE arg_opt_labels = rb_ary_new(); - int j; - - for (j=0; j<iseq->arg_opts; j++) { - rb_ary_push(arg_opt_labels, - register_label(labels_table, iseq->arg_opt_table[j])); - } - - /* commit */ - if (iseq->arg_simple == 1) { - args = INT2FIX(iseq->argc); - } - else { - rb_ary_push(args, INT2FIX(iseq->argc)); - rb_ary_push(args, arg_opt_labels); - rb_ary_push(args, INT2FIX(iseq->arg_post_len)); - rb_ary_push(args, INT2FIX(iseq->arg_post_start)); - rb_ary_push(args, INT2FIX(iseq->arg_rest)); - rb_ary_push(args, INT2FIX(iseq->arg_block)); - rb_ary_push(args, INT2FIX(iseq->arg_simple)); - } - } - - /* body */ - for (seq = iseq->iseq; seq < iseq->iseq + iseq->iseq_size; ) { - VALUE insn = *seq++; - int j, len = insn_len(insn); - VALUE *nseq = seq + len - 1; - VALUE ary = rb_ary_new2(len); - - rb_ary_push(ary, insn_syms[insn]); - for (j=0; j<len-1; j++, seq++) { - switch (insn_op_type(insn, j)) { - case TS_OFFSET: { - unsigned int idx = nseq - iseq->iseq + *seq; - rb_ary_push(ary, register_label(labels_table, idx)); - break; - } - case TS_LINDEX: - case TS_DINDEX: - case TS_NUM: - rb_ary_push(ary, INT2FIX(*seq)); - break; - case TS_VALUE: - rb_ary_push(ary, *seq); - break; - case TS_ISEQ: - { - rb_iseq_t *iseq = (rb_iseq_t *)*seq; - if (iseq) { - VALUE val = iseq_data_to_ary(iseq); - rb_ary_push(ary, val); - } - else { - rb_ary_push(ary, Qnil); - } - } - break; - case TS_GENTRY: - { - struct global_entry *entry = (struct global_entry *)*seq; - rb_ary_push(ary, ID2SYM(entry->id)); - } - break; - case TS_IC: - rb_ary_push(ary, Qnil); - break; - case TS_ID: - rb_ary_push(ary, ID2SYM(*seq)); - break; - case TS_CDHASH: - { - VALUE hash = *seq; - VALUE val = rb_ary_new(); - int i; - - rb_hash_foreach(hash, cdhash_each, val); - - for (i=0; i<RARRAY_LEN(val); i+=2) { - VALUE pos = FIX2INT(rb_ary_entry(val, i+1)); - unsigned int idx = nseq - iseq->iseq + pos; - - rb_ary_store(val, i+1, - register_label(labels_table, idx)); - } - rb_ary_push(ary, val); - } - break; - default: - rb_bug("unknown operand: %c", insn_op_type(insn, j)); - } - } - rb_ary_push(body, ary); - } - - nbody = body; - - /* exception */ - for (i=0; i<iseq->catch_table_size; i++) { - VALUE ary = rb_ary_new(); - struct iseq_catch_table_entry *entry = &iseq->catch_table[i]; - rb_ary_push(ary, exception_type2symbol(entry->type)); - if (entry->iseq) { - rb_iseq_t *eiseq; - GetISeqPtr(entry->iseq, eiseq); - rb_ary_push(ary, iseq_data_to_ary(eiseq)); - } - else { - rb_ary_push(ary, Qnil); - } - rb_ary_push(ary, register_label(labels_table, entry->start)); - rb_ary_push(ary, register_label(labels_table, entry->end)); - rb_ary_push(ary, register_label(labels_table, entry->cont)); - rb_ary_push(ary, INT2FIX(entry->sp)); - rb_ary_push(exception, ary); - } - - /* make body with labels and insert line number */ - body = rb_ary_new(); - - for (i=0, pos=0; i<RARRAY_LEN(nbody); i++) { - VALUE ary = RARRAY_PTR(nbody)[i]; - VALUE label; - - if (st_lookup(labels_table, pos, &label)) { - rb_ary_push(body, label); - } - - if (iseq->insn_info_table[i].line_no != line) { - line = iseq->insn_info_table[i].line_no; - rb_ary_push(body, INT2FIX(line)); - } - - rb_ary_push(body, ary); - pos += RARRAY_LEN(ary); - } - - st_free_table(labels_table); - - rb_hash_aset(misc, ID2SYM(rb_intern("arg_size")), INT2FIX(iseq->arg_size)); - rb_hash_aset(misc, ID2SYM(rb_intern("local_size")), INT2FIX(iseq->local_size)); - rb_hash_aset(misc, ID2SYM(rb_intern("stack_max")), INT2FIX(iseq->stack_max)); - - /* - * [:magic, :major_version, :minor_version, :format_type, :misc, - * :name, :filename, :type, :locals, :args, - * :catch_table, :bytecode] - */ - rb_ary_push(val, rb_str_new2("YARVInstructionSequence/SimpleDataFormat")); - rb_ary_push(val, INT2FIX(1)); - rb_ary_push(val, INT2FIX(1)); - rb_ary_push(val, INT2FIX(1)); - rb_ary_push(val, misc); - rb_ary_push(val, iseq->name); - rb_ary_push(val, iseq->filename); - rb_ary_push(val, type); - rb_ary_push(val, locals); - rb_ary_push(val, args); - rb_ary_push(val, exception); - rb_ary_push(val, body); - return val; -} - -struct st_table * -insn_make_insn_table(void) -{ - struct st_table *table; - int i; - table = st_init_numtable(); - - for (i=0; i<VM_INSTRUCTION_SIZE; i++) { - st_insert(table, ID2SYM(rb_intern(insn_name(i))), i); - } - - return table; -} - -VALUE -rb_iseq_clone(VALUE iseqval, VALUE newcbase) -{ - VALUE newiseq = iseq_alloc(rb_cISeq); - rb_iseq_t *iseq0, *iseq1; - - GetISeqPtr(iseqval, iseq0); - GetISeqPtr(newiseq, iseq1); - - *iseq1 = *iseq0; - iseq1->self = newiseq; - if (!iseq1->orig) { - iseq1->orig = iseqval; - } - if (newcbase) { - iseq1->cref_stack = NEW_BLOCK(newcbase); - if (iseq0->cref_stack->nd_next) { - iseq1->cref_stack->nd_next = iseq0->cref_stack->nd_next; - } - } - - return newiseq; -} - -/* ruby2cext */ - -VALUE -rb_iseq_build_for_ruby2cext( - const rb_iseq_t *iseq_template, - const rb_insn_func_t *func, - const struct iseq_insn_info_entry *insn_info_table, - const char **local_table, - const VALUE *arg_opt_table, - const struct iseq_catch_table_entry *catch_table, - const char *name, - const char *filename) -{ - int i; - VALUE iseqval = iseq_alloc(rb_cISeq); - rb_iseq_t *iseq; - GetISeqPtr(iseqval, iseq); - - /* copy iseq */ - *iseq = *iseq_template; - iseq->name = rb_str_new2(name); - iseq->filename = rb_str_new2(filename); - iseq->mark_ary = rb_ary_new(); - iseq->self = iseqval; - - iseq->iseq = ALLOC_N(VALUE, iseq->iseq_size); - - for (i=0; i<iseq->iseq_size; i+=2) { - iseq->iseq[i] = BIN(opt_call_c_function); - iseq->iseq[i+1] = (VALUE)func; - } - - iseq_translate_threaded_code(iseq); - -#define ALLOC_AND_COPY(dst, src, type, size) do { \ - if (size) { \ - (dst) = ALLOC_N(type, (size)); \ - MEMCPY((dst), (src), type, (size)); \ - } \ -} while (0) - - ALLOC_AND_COPY(iseq->insn_info_table, insn_info_table, - struct iseq_insn_info_entry, iseq->insn_info_size); - - ALLOC_AND_COPY(iseq->catch_table, catch_table, - struct iseq_catch_table_entry, iseq->catch_table_size); - - ALLOC_AND_COPY(iseq->arg_opt_table, arg_opt_table, - VALUE, iseq->arg_opts); - - set_relation(iseq, 0); - - return iseqval; -} - -void -Init_ISeq(void) -{ - /* declare ::VM::InstructionSequence */ - rb_cISeq = rb_define_class_under(rb_cRubyVM, "InstructionSequence", rb_cObject); - rb_define_alloc_func(rb_cISeq, iseq_alloc); - rb_define_method(rb_cISeq, "inspect", iseq_inspect, 0); - rb_define_method(rb_cISeq, "disasm", ruby_iseq_disasm, 0); - rb_define_method(rb_cISeq, "disassemble", ruby_iseq_disasm, 0); - rb_define_method(rb_cISeq, "to_a", iseq_to_a, 0); - rb_define_method(rb_cISeq, "eval", iseq_eval, 0); - - /* disable this feature because there is no verifier. */ - /* rb_define_singleton_method(rb_cISeq, "load", iseq_s_load, -1); */ - (void)iseq_s_load; - - rb_define_singleton_method(rb_cISeq, "compile", iseq_s_compile, -1); - rb_define_singleton_method(rb_cISeq, "new", iseq_s_compile, -1); - rb_define_singleton_method(rb_cISeq, "compile_file", iseq_s_compile_file, -1); - rb_define_singleton_method(rb_cISeq, "compile_option", iseq_s_compile_option_get, 0); - rb_define_singleton_method(rb_cISeq, "compile_option=", iseq_s_compile_option_set, 1); - rb_define_singleton_method(rb_cISeq, "disasm", iseq_s_disasm, 1); - rb_define_singleton_method(rb_cISeq, "disassemble", iseq_s_disasm, 1); -} - |