Diff of pike.git/src/program.h (db795b0039c6079928ea966a2b14c7e800892624 » d4515f25d5a18729fa391d1b13c33d5fe4b76574)

pike.git/src/program.h:1: - /* - || This file is part of Pike. For copyright information see COPYRIGHT. - || Pike is distributed under GPL, LGPL and MPL. See the file COPYING - || for more information. - */ + - #ifndef PROGRAM_H - #define PROGRAM_H - - #include "global.h" - #include "pike_macros.h" - #include "pike_error.h" - #include "svalue.h" - #include "time_stuff.h" - #include "program_id.h" - #include "pike_rusage.h" - #include "block_allocator.h" - - /* Needed to support dynamic loading on NT */ - PMOD_EXPORT extern struct program_state * Pike_compiler; - - /* Compilation flags */ - #define COMPILATION_CHECK_FINAL 0x01 - /* This flag is set when resolve functions should force the lookup so - * that we don't get a placeholder back. Used for inherits. */ - #define COMPILATION_FORCE_RESOLVE 0x02 - - /* #define FORCE_RESOLVE_DEBUG */ - /* Helper macros for force_resolve */ - #ifdef FORCE_RESOLVE_DEBUG - #define DO_IF_FRD(X) X - #else /* !FORCE_RESOLVE_DEBUG */ - #define DO_IF_FRD(X) - #endif /* FORCE_RESOLVE_DEBUG */ - #define SET_FORCE_RESOLVE(OLD) do { \ - int tmp_ = (OLD) = Pike_compiler->flags; \ - Pike_compiler->flags |= COMPILATION_FORCE_RESOLVE; \ - DO_IF_FRD(fprintf(stderr, \ - "Force resolve on. Flags:0x%04x (0x%04x)\n", \ - Pike_compiler->flags, tmp_)); \ - } while(0) - #define UNSET_FORCE_RESOLVE(OLD) do { \ - int tmp_ = (Pike_compiler->flags & ~COMPILATION_FORCE_RESOLVE) | \ - ((OLD) & COMPILATION_FORCE_RESOLVE); \ - DO_IF_FRD(fprintf(stderr, \ - "Force resolve unset. Flags:0x%04x (0x%04x)\n", \ - tmp_, Pike_compiler->flags)); \ - Pike_compiler->flags = tmp_; \ - } while(0) - - extern struct pike_string *this_program_string; - extern struct pike_string *this_string; - - /* Common compiler subsystems */ - extern struct pike_string *parser_system_string; - extern struct pike_string *type_check_system_string; - - #define LFUN___INIT 0 - #define LFUN_CREATE 1 - #define LFUN_DESTROY 2 - #define LFUN_ADD 3 - #define LFUN_SUBTRACT 4 - #define LFUN_AND 5 - #define LFUN_OR 6 - #define LFUN_XOR 7 - #define LFUN_LSH 8 - #define LFUN_RSH 9 - #define LFUN_MULTIPLY 10 - #define LFUN_DIVIDE 11 - #define LFUN_MOD 12 - #define LFUN_COMPL 13 - #define LFUN_EQ 14 - #define LFUN_LT 15 - #define LFUN_GT 16 - #define LFUN___HASH 17 - #define LFUN_CAST 18 - #define LFUN_NOT 19 - #define LFUN_INDEX 20 - #define LFUN_ASSIGN_INDEX 21 - #define LFUN_ARROW 22 - #define LFUN_ASSIGN_ARROW 23 - #define LFUN__SIZEOF 24 - #define LFUN__INDICES 25 - #define LFUN__VALUES 26 - #define LFUN_CALL 27 - #define LFUN_RADD 28 - #define LFUN_RSUBTRACT 29 - #define LFUN_RAND 30 - #define LFUN_ROR 31 - #define LFUN_RXOR 32 - #define LFUN_RLSH 33 - #define LFUN_RRSH 34 - #define LFUN_RMULTIPLY 35 - #define LFUN_RDIVIDE 36 - #define LFUN_RMOD 37 - #define LFUN_ADD_EQ 38 - #define LFUN__IS_TYPE 39 - #define LFUN__SPRINTF 40 - #define LFUN__EQUAL 41 - #define LFUN__M_DELETE 42 - #define LFUN__GET_ITERATOR 43 - #define LFUN_RANGE 44 - - #define NUM_LFUNS 45 - - /* NOTE: After this point there are only fake lfuns. - */ - #define LFUN__SEARCH 45 - #define LFUN__TYPES 46 - #define LFUN__SERIALIZE 47 - #define LFUN__DESERIALIZE 48 - #define LFUN__SIZE_OBJECT 49 - #define LFUN__RANDOM 50 - - extern const char *const lfun_names[]; - - extern struct pike_string *lfun_strings[]; - - #ifndef STRUCT_NODE_S_DECLARED - #define STRUCT_NODE_S_DECLARED - struct node_s; - typedef struct node_s node; - #endif - - #ifndef STRUCT_OBJECT_DECLARED - #define STRUCT_OBJECT_DECLARED - struct object; - #endif - - #undef EXTERN - #undef STRUCT - #undef PUSH - #undef POP - #undef DECLARE - - #define STRUCT - #include "compilation.h" - - #define EXTERN - #include "compilation.h" - - /* Byte-code method identification. */ - #define PIKE_BYTECODE_PORTABLE -1 /* Only used by the codec. */ - #define PIKE_BYTECODE_DEFAULT 0 - #define PIKE_BYTECODE_GOTO 1 - #define PIKE_BYTECODE_SPARC 2 - #define PIKE_BYTECODE_IA32 3 - #define PIKE_BYTECODE_PPC32 4 - #define PIKE_BYTECODE_AMD64 5 - #define PIKE_BYTECODE_PPC64 6 - - #ifndef PIKE_BYTECODE_METHOD - #error PIKE_BYTECODE_METHOD not set. - #endif - - #if PIKE_BYTECODE_METHOD == PIKE_BYTECODE_IA32 - #define PIKE_OPCODE_T unsigned INT8 - #elif PIKE_BYTECODE_METHOD == PIKE_BYTECODE_AMD64 - #define PIKE_OPCODE_T unsigned INT8 - #elif PIKE_BYTECODE_METHOD == PIKE_BYTECODE_SPARC - #define PIKE_OPCODE_T unsigned INT32 - #elif PIKE_BYTECODE_METHOD == PIKE_BYTECODE_PPC32 - #define PIKE_OPCODE_T unsigned INT32 - #elif PIKE_BYTECODE_METHOD == PIKE_BYTECODE_PPC64 - #define PIKE_OPCODE_T unsigned INT32 - #elif PIKE_BYTECODE_METHOD == PIKE_BYTECODE_GOTO - #define PIKE_OPCODE_T void * - #define PIKE_INSTR_T void * - #else - #define PIKE_OPCODE_T unsigned INT8 - #endif - - #ifndef PIKE_INSTR_T - /* The type for an opcode instruction identifier (not packed). In all - * cases but PIKE_BYTECODE_GOTO, this is n - F_OFFSET where n is the - * number in the Pike_opcodes enum. */ - #define PIKE_INSTR_T unsigned int - #endif - - /* I need: - * a) one type that can point to a callable function. - * (C function, or object->fun) - * This can for instance be an svalue. - * - * b) one type that once the object/program is known can point - * to the C/PIKE function body. - * - * c) A number of flags to send to 'add_simul_efun' to specify side effects - * and such. - */ - - - /* - * Max program dimensions: - * 2^16 functions + global variables - * 2^16 inherits - * 2^16 arguments to pike functions - * 2^32 efuns - * 2^8 local variables (and arguments) - */ - - union idptr - { - /* For variables: Offset of the variable in the storage pointed to - * by inherit.storage_offset in the struct inherit that corresponds - * to the identifier. See LOW_GET_GLOBAL and GET_GLOBAL. The stored - * variable may be either a normal or a short svalue, depending on - * identifier.run_time_type. (IDENTIFIER_VARIABLE) - * - * For pike functions: Offset to the start of the function in - * program.program in the program pointed to by prog in the struct - * inherit that corresponds to the identifier. Or -1 if a prototype. - * (IDENTIFIER_PIKE_FUNCTION) - */ - ptrdiff_t offset; - - /* External symbol reference. (IDENTIFIER_EXTERN) - * - * Note that this bit MUST be checked to be zero - * before looking at the other four cases! - */ - struct { - unsigned short depth; /* Scope count. */ - unsigned short id; /* Reference number. */ - } ext_ref; - - /* Constant. (IDENTIFIER_CONSTANT) - * - * Offset of the struct program_constant in program.constants - * in the program pointed to by prog in the struct inherit - * that corresponds to the identifier. - */ - struct { - ptrdiff_t offset; /* Offset in the constants table. */ - } const_info; - - /* Getter/setter reference pair. (IDENTIFIER_VARIABLE && PIKE_T_GET_SET) - */ - struct { - INT16 getter; /* Reference to getter. */ - INT16 setter; /* Reference to setter. */ - } gs_info; - - /* C function pointer. (IDENTIFIER_C_FUNCTION) */ - void (*c_fun)(INT32); - - /* Direct svalue pointer. Only used in the reference vtable cache. */ - struct svalue *sval; - }; - - #define IDENTIFIER_VARIABLE 0 - #define IDENTIFIER_CONSTANT 1 - #define IDENTIFIER_C_FUNCTION 2 - #define IDENTIFIER_PIKE_FUNCTION 3 - #define IDENTIFIER_FUNCTION 2 - #define IDENTIFIER_TYPE_MASK 3 - - #define IDENTIFIER_ALIAS 4 /* Identifier is an alias for another - * (possibly extern) symbol. - */ - #define IDENTIFIER_VARARGS 8 /* Used for functions only. */ - #define IDENTIFIER_NO_THIS_REF 8 /* Used for variables only: Don't count refs to self. */ - #define IDENTIFIER_HAS_BODY 16 /* Function has a body (set already in pass 1). */ - #define IDENTIFIER_SCOPED 32 /* This is used for local functions only */ - #define IDENTIFIER_SCOPE_USED 64 /* contains scoped local functions */ - - #define IDENTIFIER_IS_FUNCTION(X) ((X) & IDENTIFIER_FUNCTION) - #define IDENTIFIER_IS_PIKE_FUNCTION(X) (((X) & IDENTIFIER_TYPE_MASK) == IDENTIFIER_PIKE_FUNCTION) - #define IDENTIFIER_IS_C_FUNCTION(X) (((X) & IDENTIFIER_TYPE_MASK) == IDENTIFIER_C_FUNCTION) - #define IDENTIFIER_IS_CONSTANT(X) (((X) & IDENTIFIER_TYPE_MASK) == IDENTIFIER_CONSTANT) - #define IDENTIFIER_IS_VARIABLE(X) (!((X) & IDENTIFIER_TYPE_MASK)) - #define IDENTIFIER_IS_ALIAS(X) ((X) & IDENTIFIER_ALIAS) - #define IDENTIFIER_IS_SCOPED(X) ((X) & IDENTIFIER_SCOPED) - - #define IDENTIFIER_MASK 127 - - /* - * Every constant, class, function and variable - * gets exactly one of these. - */ - struct identifier - { - struct pike_string *name; - struct pike_type *type; - INT_TYPE linenumber; - unsigned INT32 filename_strno; /* Index in strings. */ - unsigned INT8 identifier_flags; /* IDENTIFIER_??? */ - unsigned INT8 run_time_type; /* PIKE_T_??? */ - unsigned INT16 opt_flags; /* OPT_??? */ - #ifdef PROFILING - unsigned INT32 num_calls; /* Total number of calls. */ - unsigned INT32 recur_depth; /* Recursion depth during timing. */ - cpu_time_t total_time; /* Total time with children. */ - cpu_time_t self_time; /* Total time excluding children. */ - #endif /* PROFILING */ - union idptr func; - }; - - /* - * This is used to store constants, both - * inline constants and those defined explicitly with - * the constant keyword. - */ - struct program_constant - { - struct svalue sval; /* Value. */ - ptrdiff_t offset; /* Offset in identifiers to initialization function. */ - }; - - /* - * in the bytecode, a function starts with: - * char num_args - * char num_locals - * char code[] - */ - - #define ID_PROTECTED 0x01 /* Symbol is not visible by indexing */ - #define ID_STATIC 0x01 /* Symbol is not visible by indexing */ - #define ID_PRIVATE 0x02 /* Symbol is not visible by inherit */ - #define ID_FINAL 0x04 /* Symbol may not be overloaded */ - #define ID_NOMASK 0x04 /* Symbol may not be overloaded (deprecated) */ - #define ID_PUBLIC 0x08 /* Anti private */ - #define ID_USED 0x10 /* This identifier has been used. Check - * that the type is compatible when - * overloading. */ - #define ID_LOCAL 0x20 /* Locally referenced symbol (not virtual) */ - #define ID_INLINE 0x20 /* Same as local */ - #define ID_HIDDEN 0x40 /* Symbols that are private and inherited one step later */ - #define ID_INHERITED 0x80 /* Symbol is inherited */ - #define ID_OPTIONAL 0x100 /* Symbol is not required by the interface */ - #define ID_EXTERN 0x200 /* Symbol is defined later */ - #define ID_VARIANT 0x400 /* Function is overloaded by argument. */ - - #define ID_MODIFIER_MASK 0x07ff - - #define ID_STRICT_TYPES 0x8000 /* #pragma strict_types */ - #define ID_SAVE_PARENT 0x10000 /* #pragma save_parent */ - #define ID_DONT_SAVE_PARENT 0x20000 /* #pragma dont_save_parent */ - #define ID_NO_DEPRECATION_WARNINGS 0x40000 /* #pragma no_deprecation_warnings */ - #define ID_DISASSEMBLE 0x80000 /* #pragma disassemble */ - - - /* - * All identifiers in this program - * and all identifiers in inherited programs - * need to have a 'struct reference' in this - * program. When we overload a function, we simply - * change the reference to point to the new 'struct identifier'. - * - * When an identifier is represented as an integer, it's typically the - * offset of the corresponding struct reference in - * program.identifier_references. - */ - struct reference - { - /* Offset of the struct inherit in program.inherits for the program - * that the struct identifier is in. See INHERIT_FROM_PTR and - * INHERIT_FROM_INT. */ - unsigned INT16 inherit_offset; - - /* Offset of the struct identifier in program.identifiers in the - * program pointed to by the struct inherit through inherit_offset - * above. See ID_FROM_PTR and ID_FROM_INT. */ - unsigned INT16 identifier_offset; - - /* ID_* flags - protected, private etc.. */ - unsigned INT16 id_flags; - - /* V-table cache information from this point on. */ - - /* Run-time type for the value field if initialized. - * PIKE_T_UNKNOWN indicates uninitialized. - */ - INT16 run_time_type; - - /* Cached value of the lookup. - */ - union idptr func; - }; - - /* Magic value used as identifier reference integer to refer to this. */ - #define IDREF_MAGIC_THIS -1 - - /* Magic values in inherit.parent_offset; see below. */ - #define OBJECT_PARENT -18 - #define INHERIT_PARENT -17 - - /* - * Each program has an array of these, - * the first entry points to itself, the - * rest are from inherited programs. - * Note that when a program is inherited, - * all 'struct inherit' from that program are - * copied, so the whole tree of inherits is - * represented. - */ - struct inherit - { - /* The depth of the inherited program in this program. I.e. the - * number of times the program has been inherited, directly or - * indirectly. - * - * Note that the struct inherit for the program that directly - * inherited the program represented by this struct inherit can be - * found by going backwards in program.inherits from this struct - * until one is found with an inherit_level less than this one. */ - INT16 inherit_level; - - /* All the identifier references in the inherited program have been - * copied to this program with the first one at this offset. */ - INT16 identifier_level; - - /* The index of the identifier reference in the parent program for - * the identifier from which this inherit was done. -1 if there's no - * such thing. It's always -1 in the inherit struct for the top - * level program. */ - INT16 parent_identifier; - - /* Describes how to find the parent object for the external - * identifier references associated with this inherit: - * - * OBJECT_PARENT: Follow the object parent, providing - * PROGRAM_USES_PARENT is set in the program containing this - * inherit. See PARENT_INFO. This is used for external references - * in the top level program (i.e. the one containing the inherit - * table). - * - * INHERIT_PARENT: Follow the parent pointer in this inherit. This - * is used when finished programs with parent objects are - * inherited. - * - * A non-negative integer: The parent is found by following this - * number of parent pointers in the program that directly - * inherited the program in this inherit, i.e. in the closest - * lower level inherit. This is used when a program is inherited - * whose parent is still being compiled, so it's parent object is - * fake. That implies that that program also contains the current - * program on some level, and that level is stored here. An - * example: - * - * class A { - * class B {} - * class C { - * class D { - * inherit B; - * } - * } - * } - * - * The parent program of B is A, which is still being compiled - * when B is inherited in D, so it has a fake object. A is also - * the parent of D, but two levels out, and hence 2 is stored in - * parent_offset. - * - * Note that parent_offset can be 0: - * - * class A { - * class B {} - * inherit B; - * } - */ - INT16 parent_offset; - - /* The offset of the first entry in prog->identifier_references that - * comes from the program in this inherit. prog is in this case the - * program that directly inherited it, and not the top level - * program. I.e. for inherits on level 1, this is always the same as - * identifier_level. - * - * Are both really necessary? /mast */ - size_t identifier_ref_offset; - - /* Offset in object->storage to the start of the storage for the - * variables from the program in this inherit. */ - ptrdiff_t storage_offset; - - /* The parent object for the program in this inherit, or NULL if - * there isn't any. */ - struct object *parent; - - /* The program for this inherit. */ - struct program *prog; - - /* The name of the inherit, if there is any. For nested inherits, - * this can be a string on the form "A::B::C". */ - struct pike_string *name; - }; - - - /* - * Storage struct for a trampoline object - * (not a part of the program type) - */ - struct pike_trampoline - { - struct pike_frame *frame; - INT32 func; - }; - - - - /* program parts have been realloced into one block */ - #define PROGRAM_OPTIMIZED 1 - - /* program has gone through pass 1 of compiler, prototypes etc. will - * not change from now on - */ - #define PROGRAM_FIXED 2 - - /* Program is done and can be cloned */ - #define PROGRAM_FINISHED 4 - - /* Program has gone through first compiler pass */ - #define PROGRAM_PASS_1_DONE 8 - - /* Program will be destructed as soon at it runs out of references. - * Normally only used for mutex lock keys and similar - */ - #define PROGRAM_DESTRUCT_IMMEDIATE 0x10 - - /* Self explanatory, automatically detected */ - #define PROGRAM_HAS_C_METHODS 0x20 - - /* Objects created from this program are constant and shareable */ - #define PROGRAM_CONSTANT 0x40 - - /* Objects have pointers to the parent object. Use LOW_PARENT_INFO or - * PARENT_INFO to extract it. */ - #define PROGRAM_USES_PARENT 0x80 - - /* Objects should not be destructed even when they only have weak - * references left. */ - #define PROGRAM_NO_WEAK_FREE 0x100 - - /* Objects should not be destructed by f_destruct(). */ - #define PROGRAM_NO_EXPLICIT_DESTRUCT 0x200 - - /* Program is in an inconsistant state */ - #define PROGRAM_AVOID_CHECK 0x400 - - /* Program has not yet been used for compilation */ - #define PROGRAM_VIRGIN 0x800 - - /* Don't allow the program to be inherited or cloned if there's no - * parent object. Might only be set if PROGRAM_USES_PARENT is. */ - #define PROGRAM_NEEDS_PARENT 0x1000 - - /* Program has code to be executed when it's destructed. This causes - * the gc to consider objects of this program to be "live" and will - * take care to ensure a good destruct sequence so that other - * referenced things are intact as far as possible when the object is - * destructed. See the blurb near the top of gc.c for further - * discussion. - * - * This flag gets set automatically when an event handler that might - * act on PROG_EVENT_EXIT is installed (i.e. through set_exit_callback - * or pike_set_prog_event_callback). However, if the handler is very - * simple then this flag may be cleared again to allow the gc to - * handle objects of this program more efficiently (by considering - * them "dead" and destroy them in an arbitrary order). - * - * Such a "very simple" handler should only do things like freeing - * pointers and clearing variables in the object storage. It can not - * assume that any other context is intact when it's called. It might - * even get called after the module exit function, which means that - * this optimization trick can never be used in a dynamically loaded - * module. */ - #define PROGRAM_LIVE_OBJ 0x2000 - - /* Clear the object storage on destruct. */ - #define PROGRAM_CLEAR_STORAGE 0x4000 - - /* Using define instead of enum allows for ifdefs - Hubbe */ - #define PROG_EVENT_INIT 0 - #define PROG_EVENT_EXIT 1 - #define PROG_EVENT_GC_RECURSE 2 - #define PROG_EVENT_GC_CHECK 3 - #define NUM_PROG_EVENTS 4 - - /* These macros should only be used if (p->flags & PROGRAM_USES_PARENT) - * is true - */ - #define LOW_PARENT_INFO(O,P) ((struct parent_info *)(PIKE_OBJ_STORAGE((O)) + (P)->parent_info_storage)) - #define PARENT_INFO(O) LOW_PARENT_INFO( (O), (O)->prog) - - /* - * Objects which needs to access their parent - * have to allocate one of these structs in - * the object data area. - * The parent_info_storage member of the program - * struct tells us where in the object to find this - * data. - */ - struct parent_info - { - struct object *parent; - INT16 parent_identifier; - }; - - /* Single entry cache for object indexing. */ - struct identifier_lookup_cache - { - INT32 program_id; - INT32 identifier_id; - }; - - struct program - { - INT32 refs; - - INT32 id; /* used to identify program in caches */ - /* storage_needed - storage needed in object struct - * the first inherit[0].storage_offset bytes are not used and are - * subtracted when inheriting. - */ - ptrdiff_t storage_needed; /* storage needed in the object struct */ - ptrdiff_t xstorage; /* Non-inherited storage */ - ptrdiff_t parent_info_storage; - - INT16 flags; /* PROGRAM_* */ - unsigned INT8 alignment_needed; - struct timeval timestamp; - - struct program *next; - struct program *prev; - struct program *parent; - - node *(*optimize)(node *n); - - void (*event_handler)(int); - #ifdef PIKE_DEBUG - unsigned INT32 checksum; - #endif - #ifdef PROFILING - unsigned INT32 num_clones; - #endif /* PROFILING */ - - size_t total_size; - - #define FOO(NUMTYPE,TYPE,ARGTYPE,NAME) TYPE * NAME ; - #include "program_areas.h" - - #define FOO(NUMTYPE,TYPE,ARGTYPE,NAME) NUMTYPE PIKE_CONCAT(num_,NAME) ; - #include "program_areas.h" - - INT16 lfuns[NUM_LFUNS]; - }; - - PMOD_EXPORT void dump_program_tables (const struct program *p, int indent); - #ifdef PIKE_DEBUG - static INLINE int PIKE_UNUSED_ATTRIBUTE CHECK_IDREF_RANGE (int x, const struct program *p) - { - if (x < 0 || x >= p->num_identifier_references) { - dump_program_tables(p, 4); - debug_fatal ("Identifier reference index %d out of range 0..%d\n", x, - p->num_identifier_references - 1); - } - return x; - } - #else - #define CHECK_IDREF_RANGE(X, P) (X) - #endif - - #define PTR_FROM_INT(P, X) ((P)->identifier_references + \ - CHECK_IDREF_RANGE((X), (P))) - - #define INHERIT_FROM_PTR(P,X) (dmalloc_touch(struct program *,(P))->inherits + (X)->inherit_offset) - #define PROG_FROM_PTR(P,X) (dmalloc_touch(struct program *,INHERIT_FROM_PTR(P,X)->prog)) - #define ID_FROM_PTR(P,X) (PROG_FROM_PTR(P,X)->identifiers+(X)->identifier_offset) - #define INHERIT_FROM_INT(P,X) INHERIT_FROM_PTR(P, PTR_FROM_INT(P, X)) - #define PROG_FROM_INT(P,X) PROG_FROM_PTR(P, PTR_FROM_INT(P, X)) - #define ID_FROM_INT(P,X) ID_FROM_PTR(P, PTR_FROM_INT(P, X)) - - #define QUICK_FIND_LFUN(P,N) (dmalloc_touch(struct program *,(P))->lfuns[N]) - - #ifdef DO_PIKE_CLEANUP - PMOD_EXPORT extern int gc_external_refs_zapped; - PMOD_EXPORT void gc_check_zapped (void *a, TYPE_T type, const char *file, INT_TYPE line); - #endif - - #if defined (USE_DLL) && defined (DYNAMIC_MODULE) - /* Use the function in modules so we don't have to export the block - * alloc stuff. */ - #define free_program(p) do_free_program(p) - #else - #define free_program(p) do{ \ - struct program *_=(p); \ - debug_malloc_touch(_); \ - DO_IF_DEBUG ( \ - DO_IF_PIKE_CLEANUP ( \ - if (gc_external_refs_zapped) \ - gc_check_zapped (_, PIKE_T_PROGRAM, __FILE__, __LINE__))); \ - if(!sub_ref(_)) \ - really_free_program(_); \ - }while(0) - #endif - - ATTRIBUTE((malloc)) - PMOD_EXPORT struct program * alloc_program(void); - PMOD_EXPORT void really_free_program(struct program * p); - void count_memory_in_programs(size_t *num, size_t *_size); - void free_all_program_blocks(void); - - - extern struct program *first_program; - extern struct program *null_program; - extern struct program *compilation_env_program; - extern struct program *compilation_program; - extern struct object *compilation_environment; - extern struct program *pike_trampoline_program; - extern struct program *gc_internal_program; - extern struct program *placeholder_program; - extern struct object *placeholder_object; - - /* Flags for identifier finding... */ - #define SEE_STATIC 1 - #define SEE_PROTECTED 1 - #define SEE_PRIVATE 2 - - /* Report levels */ - #define REPORT_NOTICE 0 /* FYI. */ - #define REPORT_WARNING 1 /* Compiler warning. */ - #define REPORT_ERROR 2 /* Compilation error. */ - #define REPORT_FATAL 3 /* Unrecoverable error. */ - - - #define COMPILER_IN_CATCH 1 - - #define ADD_STORAGE(X) low_add_storage(sizeof(X), ALIGNOF(X),0) - - #define STORAGE_NEEDED(X) ((X)->storage_needed - (X)->inherits[0].storage_offset) - - #define FOO(NUMTYPE,TYPE,ARGTYPE,NAME) \ - void PIKE_CONCAT(add_to_,NAME)(ARGTYPE ARG); - #define BAR(NUMTYPE,TYPE,ARGTYPE,NAME) \ - void PIKE_CONCAT(low_add_many_to_,NAME)(struct program_state *state, ARGTYPE *ARG, NUMTYPE cnt); \ - void PIKE_CONCAT(add_to_,NAME)(ARGTYPE ARG); - #include "program_areas.h" - - typedef int supporter_callback (void *, int); - - struct Supporter - { - #ifdef PIKE_DEBUG - int magic; - #endif - - struct Supporter *previous; - /* Makes up a linked list of supporters with the first one in - * current_supporter. Supporters are linked onto this list during - * the (recursive) compilation of each compilation unit (i.e. - * compiled string). Thus nested programs and programs built from C - * don't have supporters. */ - - struct Supporter *depends_on; - /* The supporter furthest in on the current_supporter linked list - * that this one depends on. When it gets unlinked from that list, - * this becomes a back pointer for the dependants linked list - * below. */ - - struct Supporter *dependants, *next_dependant; - /* dependants points to a linked list of supporters that depends on - * this one, and next_dependant makes up the links between those - * supporters. A supporter is linked onto this list when it is - * unlinked from the current_supporter list. */ - - struct object *self; - supporter_callback *fun; - void *data; - - struct program *prog; - /* The top level program in the compilation unit. */ - }; - - /* Prototypes begin here */ - PMOD_EXPORT void lock_pike_compiler(void); - PMOD_EXPORT void unlock_pike_compiler(void); - PMOD_EXPORT void do_free_program (struct program *p); - void ins_int(INT32 i, void (*func)(char tmp)); - void add_relocated_int_to_program(INT32 i); - void use_module(struct svalue *s); - void unuse_modules(INT32 howmany); - node *find_module_identifier(struct pike_string *ident, - int see_inherit); - node *resolve_identifier(struct pike_string *ident); - PMOD_EXPORT struct program *resolve_program(struct pike_string *ident); - node *program_magic_identifier (struct program_state *state, - int state_depth, int inherit_num, - struct pike_string *ident, - int colon_colon_ref); - struct program *parent_compilation(int level); - struct program *id_to_program(INT32 id); - void optimize_program(struct program *p); - void fsort_program_identifier_index(unsigned short *start, - unsigned short *end, - struct program *p); - struct pike_string *find_program_name(struct program *p, INT_TYPE *line); - int override_identifier (struct reference *ref, struct pike_string *name, - int required_flags); - void fixate_program(void); - struct program *low_allocate_program(void); - void low_start_new_program(struct program *p, - int pass, - struct pike_string *name, - int flags, - int *idp); - PMOD_EXPORT void debug_start_new_program(INT_TYPE line, const char *file); - void dump_program_desc(struct program *p); - int sizeof_variable(int run_time_type); - void check_program(struct program *p); - int low_is_variant_dispatcher(struct identifier *id); - int is_variant_dispatcher(struct program *prog, int fun); - struct program *end_first_pass(int finish); - PMOD_EXPORT struct program *debug_end_program(void); - PMOD_EXPORT size_t low_add_storage(size_t size, size_t alignment, - ptrdiff_t modulo_orig); - PMOD_EXPORT void set_init_callback(void (*init_callback)(struct object *)); - PMOD_EXPORT void set_exit_callback(void (*exit_callback)(struct object *)); - PMOD_EXPORT void set_gc_recurse_callback(void (*m)(struct object *)); - PMOD_EXPORT void set_gc_check_callback(void (*m)(struct object *)); - PMOD_EXPORT void pike_set_prog_event_callback(void (*cb)(int)); - PMOD_EXPORT void pike_set_prog_optimize_callback(node *(*opt)(node *)); - PMOD_EXPORT int really_low_reference_inherited_identifier(struct program_state *q, - int i, - int f); - PMOD_EXPORT int low_reference_inherited_identifier(struct program_state *q, - int e, - struct pike_string *name, - int flags); - int find_inherit(struct program *p, struct pike_string *name); - PMOD_EXPORT int reference_inherited_identifier(struct program_state *state, - struct pike_string *inherit, - struct pike_string *name); - void rename_last_inherit(struct pike_string *n); - void lower_inherit(struct program *p, - struct object *parent, - int parent_identifier, - int parent_offset, - INT32 flags, - struct pike_string *name); - PMOD_EXPORT void low_inherit(struct program *p, - struct object *parent, - int parent_identifier, - int parent_offset, - INT32 flags, - struct pike_string *name); - PMOD_EXPORT void do_inherit(struct svalue *s, - INT32 flags, - struct pike_string *name); - void compiler_do_inherit(node *n, INT32 flags, struct pike_string *name); - int call_handle_inherit(struct pike_string *s); - void simple_do_inherit(struct pike_string *s, - INT32 flags, - struct pike_string *name); - int isidentifier(struct pike_string *s); - int low_define_alias(struct pike_string *name, struct pike_type *type, - int flags, int depth, int refno); - PMOD_EXPORT int define_alias(struct pike_string *name, struct pike_type *type, - int flags, int depth, int refno); - int low_define_variable(struct pike_string *name, - struct pike_type *type, - INT32 flags, - size_t offset, - INT32 run_time_type); - PMOD_EXPORT int map_variable(const char *name, - const char *type, - INT32 flags, - size_t offset, - INT32 run_time_type); - PMOD_EXPORT int quick_map_variable(const char *name, - int name_length, - size_t offset, - const char *type, - int type_length, - INT32 run_time_type, - INT32 flags); - int define_variable(struct pike_string *name, - struct pike_type *type, - INT32 flags); - PMOD_EXPORT int simple_add_variable(const char *name, - const char *type, - INT32 flags); - PMOD_EXPORT int add_constant(struct pike_string *name, - const struct svalue *c, - INT32 flags); - PMOD_EXPORT int simple_add_constant(const char *name, - struct svalue *c, - INT32 flags); - PMOD_EXPORT int add_integer_constant(const char *name, - INT_ARG_TYPE i, - INT32 flags); - PMOD_EXPORT int low_add_integer_constant(struct pike_string *name, - INT_ARG_TYPE i, - INT32 flags); - PMOD_EXPORT int quick_add_integer_constant(const char *name, - int name_length, - INT_ARG_TYPE i, - INT32 flags); - PMOD_EXPORT int add_float_constant(const char *name, - FLOAT_ARG_TYPE f, - INT32 flags); - PMOD_EXPORT int quick_add_float_constant(const char *name, - int name_length, - FLOAT_ARG_TYPE f, - INT32 flags); - PMOD_EXPORT int add_string_constant(const char *name, - const char *str, - INT32 flags); - PMOD_EXPORT int add_program_constant(const char *name, - struct program *p, - INT32 flags); - PMOD_EXPORT int add_object_constant(const char *name, - struct object *o, - INT32 flags); - PMOD_EXPORT int add_function_constant(const char *name, void (*cfun)(INT32), const char * type, int flags); - PMOD_EXPORT int debug_end_class(const char *name, ptrdiff_t namelen, INT32 flags); - INT32 define_function(struct pike_string *name, - struct pike_type *type, - unsigned flags, - unsigned function_flags, - union idptr *func, - unsigned opt_flags); - PMOD_EXPORT int really_low_find_shared_string_identifier(struct pike_string *name, - const struct program *prog, - int flags); - int really_low_find_variant_identifier(struct pike_string *name, - struct program *prog, - struct pike_type *type, - int start_pos, - int flags); - PMOD_EXPORT int low_find_lfun(struct program *p, ptrdiff_t lfun); - PMOD_EXPORT int find_lfun_fatal(struct program *p, ptrdiff_t lfun); - int lfun_lookup_id(struct pike_string *lfun_name); - int low_find_shared_string_identifier(struct pike_string *name, - const struct program *prog); - struct ff_hash; - int find_shared_string_identifier(struct pike_string *name, - const struct program *prog); - PMOD_EXPORT int find_identifier(const char *name,const struct program *prog); - int store_prog_string(struct pike_string *str); - int store_constant(const struct svalue *foo, - int equal, - struct pike_string *constant_name); - struct array *program_indices(struct program *p); - struct array *program_values(struct program *p); - struct array *program_types(struct program *p); - int low_program_index_no_free(struct svalue *to, struct program *p, int e, - struct object *parent, int parent_identifier); - int program_index_no_free(struct svalue *to, struct svalue *what, - struct svalue *ind); - INT_TYPE get_small_number(char **q); - void ext_store_program_line (struct program *prog, INT_TYPE line, - struct pike_string *file); - void start_line_numbering(void); - void store_linenumber(INT_TYPE current_line, struct pike_string *current_file); - PMOD_EXPORT struct pike_string *low_get_program_line(struct program *prog, - INT_TYPE *linep); - PMOD_EXPORT struct pike_string *get_program_line(struct program *prog, - INT_TYPE *linep); - PMOD_EXPORT char *low_get_program_line_plain (struct program *prog, - INT_TYPE *linep, - int malloced); - PMOD_EXPORT struct pike_string *low_get_line(PIKE_OPCODE_T *pc, - struct program *prog, - INT_TYPE *linep); - PMOD_EXPORT char *low_get_line_plain (PIKE_OPCODE_T *pc, struct program *prog, - INT_TYPE *linep, int malloced); - PMOD_EXPORT struct pike_string *get_line(PIKE_OPCODE_T *pc, - struct program *prog, - INT_TYPE *linep); - PMOD_EXPORT struct pike_string *low_get_function_line (struct object *o, - int fun, - INT_TYPE *linep); - PMOD_EXPORT struct pike_string *get_identifier_line(struct program *p, - int fun, - INT_TYPE *linep); - PMOD_EXPORT void va_yyreport(int severity_level, - struct pike_string *file, INT_TYPE line, - struct pike_string *system, INT32 args, - const char *fmt, va_list vargs); - PMOD_EXPORT void low_yyreport(int severity_level, - struct pike_string *file, INT_TYPE line, - struct pike_string *system, - INT32 args, const char *fmt, ...); - PMOD_EXPORT void yyreport(int severity_level, struct pike_string *system, - INT32 args, const char *fmt, ...); - PMOD_EXPORT void yywarning(char *fmt, ...); - PMOD_EXPORT void my_yyerror(const char *fmt,...); - PMOD_EXPORT void yyerror(const char *s); - void yytype_report(int severity_level, - struct pike_string *expect_file, INT_TYPE expect_line, - struct pike_type *expected_t, - struct pike_string *got_file, INT_TYPE got_line, - struct pike_type *got_t, - INT32 args, const char *fmt, ...); - void yytype_error(const char *msg, struct pike_type *expected_t, - struct pike_type *got_t, unsigned int flags); - struct pike_string *format_exception_for_error_msg (struct svalue *thrown); - void handle_compile_exception (const char *yyerror_fmt, ...); - struct supporter_marker; - void count_memory_in_supporter_markers(size_t *num, size_t *size); - void verify_supporters(void); - void init_supporter(struct Supporter *s, - supporter_callback *fun, - void *data); - int unlink_current_supporter(struct Supporter *c); - int call_dependants(struct Supporter *s, int finish); - int report_compiler_dependency(struct program *p); - struct compilation; - void run_pass2(struct compilation *c); - PMOD_EXPORT void enter_compiler(struct pike_string *filename, - INT_TYPE linenumber); - PMOD_EXPORT void exit_compiler(void); - struct program *compile(struct pike_string *aprog, - struct object *ahandler, - int amajor, int aminor, - struct program *atarget, - struct object *aplaceholder); - PMOD_EXPORT int pike_add_function2(const char *name, void (*cfun)(INT32), - const char *type, unsigned flags, - unsigned opt_flags); - PMOD_EXPORT int low_quick_add_function(struct pike_string *name_tmp, - void (*cfun)(INT32), - const char *type, - int type_length, - unsigned flags, - unsigned opt_flags); - void check_all_programs(void); - void placeholder_index(INT32 args); - void init_program(void); - void cleanup_program(void); - PMOD_EXPORT void visit_program (struct program *p, int action, void *extra); - void gc_mark_program_as_referenced(struct program *p); - void real_gc_cycle_check_program(struct program *p, int weak); - unsigned gc_touch_all_programs(void); - void gc_check_all_programs(void); - void gc_mark_all_programs(void); - void gc_cycle_check_all_programs(void); - void gc_zap_ext_weak_refs_in_programs(void); - size_t gc_free_all_unreferenced_programs(void); - void push_compiler_frame(int lexical_scope); - node *low_pop_local_variables(int level, node *block); - node *pop_local_variables(int level, node *block); - void pop_compiler_frame(void); - PMOD_EXPORT void *get_inherit_storage(struct object *o, int inherit); - PMOD_EXPORT ptrdiff_t low_get_storage(struct program *o, struct program *p); - PMOD_EXPORT void *get_storage(struct object *o, struct program *p); - PMOD_EXPORT struct program *low_program_from_function(struct object *o, INT32 i); - PMOD_EXPORT struct program *program_from_function(const struct svalue *f); - PMOD_EXPORT struct program *program_from_type(const struct pike_type *t); - PMOD_EXPORT struct program *low_program_from_svalue(const struct svalue *s, - struct object **parent_obj, - int *parent_id); - PMOD_EXPORT struct program *program_from_svalue(const struct svalue *s); - struct find_child_cache_s; - int find_child(struct program *parent, struct program *child); - struct implements_cache_s; - PMOD_EXPORT int implements(struct program *a, struct program *b); - PMOD_EXPORT int is_compatible(struct program *a, struct program *b); - void yyexplain_not_compatible(int severity_level, - struct program *a, struct program *b); - void yyexplain_not_implements(int severity_level, - struct program *a, struct program *b); - void string_builder_explain_not_compatible(struct string_builder *s, - struct program *a, - struct program *b); - void string_builder_explain_not_implements(struct string_builder *s, - struct program *a, - struct program *b); - PMOD_EXPORT void *parent_storage(int depth, struct program *expected); - PMOD_EXPORT void *get_inherited_storage(int inh, struct program *expected); - PMOD_EXPORT void change_compiler_compatibility(int major, int minor); - void make_area_executable (char *start, size_t len); - void make_program_executable(struct program *p); - /* Prototypes end here */ - - static INLINE int PIKE_UNUSED_ATTRIBUTE FIND_LFUN(struct program * p, int lfun) { - #ifdef PIKE_DEBUG - dmalloc_touch(struct program*, p); - if (lfun < 0) return find_lfun_fatal(p, lfun); - #endif - if (p->flags & PROGRAM_FIXED && lfun < NUM_LFUNS) return p->lfuns[lfun]; - return low_find_lfun(p, lfun); - } - - #define quick_add_function(NAME, NLEN, FUNC, TYPE, TLEN, FLAGS, OPT) \ - low_quick_add_function(__builtin_constant_p(NAME) \ - ? make_shared_static_string(NAME, NLEN, eightbit) \ - : make_shared_binary_string(NAME, NLEN), \ - FUNC, TYPE, TLEN, FLAGS, OPT) - - - #ifndef PIKE_USE_MACHINE_CODE - #define make_program_executable(X) - #endif - - #define ADD_FUNCTION(NAME, FUNC, TYPE, FLAGS) \ - quick_add_function(NAME, CONSTANT_STRLEN(NAME), FUNC, TYPE,\ - CONSTANT_STRLEN(TYPE), FLAGS, \ - OPT_SIDE_EFFECT|OPT_EXTERNAL_DEPEND) - - #define ADD_PROTOTYPE(NAME, TYPE, FLAGS) \ - ADD_FUNCTION(NAME, 0, TYPE, FLAGS) - - #define ADD_FUNCTION2(NAME, FUNC, TYPE, FLAGS, OPT_FLAGS) \ - quick_add_function(NAME, CONSTANT_STRLEN(NAME), FUNC, TYPE,\ - CONSTANT_STRLEN(TYPE), FLAGS, OPT_FLAGS) - - #define ADD_PROTOTYPE2(NAME, TYPE, FLAGS, OPT_FLAGS) \ - ADD_FUNCTION2(NAME, 0, TYPE, FLAGS, OPT_FLAGS) - - #define ADD_INT_CONSTANT(NAME, CONST, FLAGS) \ - quick_add_integer_constant(NAME, CONSTANT_STRLEN(NAME), CONST, FLAGS) - - #define ADD_FLOAT_CONSTANT(NAME, CONST, FLAGS) \ - quick_add_float_constant(NAME, CONSTANT_STRLEN(NAME), CONST, FLAGS) - - #define PIKE_MAP_VARIABLE(NAME, OFFSET, TYPE, RTTYPE, FLAGS) \ - quick_map_variable(NAME, CONSTANT_STRLEN(NAME), OFFSET, \ - TYPE, CONSTANT_STRLEN(TYPE), RTTYPE, FLAGS) - - #define MAP_VARIABLE(NAME, TYPE, FLAGS, OFFSET, RTYPE) \ - PIKE_MAP_VARIABLE(NAME, OFFSET, TYPE, RTYPE, FLAGS) - - #define ADD_FUNCTION_DTYPE(NAME,FUN,DTYPE,FLAGS) do { \ - DTYPE_START; \ - {DTYPE} \ - { \ - struct pike_string *_t; \ - DTYPE_END(_t); \ - quick_add_function(NAME, CONSTANT_STRLEN(NAME), FUN, \ - _t->str, _t->len, FLAGS, \ - OPT_SIDE_EFFECT|OPT_EXTERNAL_DEPEND); \ - free_string(_t); \ - } \ - } while (0) - - #define pike_add_function(NAME, CFUN, TYPE, FLAGS) \ - pike_add_function2(NAME, CFUN, TYPE, FLAGS, \ - OPT_SIDE_EFFECT|OPT_EXTERNAL_DEPEND) - - #ifndef NO_PIKE_SHORTHAND - #define add_function pike_add_function - #endif - - #define ADD_INHERIT(PROGRAM, FLAGS) \ - low_inherit((PROGRAM), 0, 0, 0, (FLAGS), 0) - - #define START_NEW_PROGRAM_ID(ID) do { \ - start_new_program(); \ - Pike_compiler->new_program->id=PIKE_CONCAT3(PROG_,ID,_ID); \ - }while(0) - - #ifdef DEBUG_MALLOC - #define end_program() ((struct program *)debug_malloc_pass(debug_end_program())) - #define end_class(NAME, FLAGS) (debug_malloc_touch(Pike_compiler->new_program), debug_end_class(NAME, CONSTANT_STRLEN(NAME), FLAGS)) - #else - #define end_class(NAME,FLAGS) debug_end_class(NAME, CONSTANT_STRLEN(NAME), FLAGS) - #define end_program debug_end_program - #endif - - - #define start_new_program() debug_start_new_program(__LINE__,__FILE__) - - #define visit_program_ref(P, REF_TYPE, EXTRA) \ - visit_ref (pass_program (P), (REF_TYPE), \ - (visit_thing_fn *) &visit_program, (EXTRA)) - #define gc_cycle_check_program(X, WEAK) \ - gc_cycle_enqueue((gc_cycle_check_cb *) real_gc_cycle_check_program, (X), (WEAK)) - - /* This can be used for backwards compatibility - * (if added to program.h in Pike 0.6 and Pike 7.0 - * -Hubbe - */ - #define Pike_new_program Pike_compiler->new_program - - - /* Return true if compat version is equal or less than MAJOR.MINOR */ - #define TEST_COMPAT(MAJOR,MINOR) \ - (Pike_compiler->compat_major < (MAJOR) || \ - (Pike_compiler->compat_major == (MAJOR) && \ - Pike_compiler->compat_minor <= (MINOR))) - - #endif /* PROGRAM_H */ - - /* Kludge... */ - #ifndef LAS_H - /* FIXME: Needed for the OPT_??? macros. - * Maybe they should be moved here, since las.h includes this file anyway? - */ - #include "las.h" - #endif /* !LAS_H */ + Newline at end of file removed.

pike.git / src / program.h