pike.git/src/program.h:5b189243bb196de79cdb1376eea5173ba4dbb441

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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 "dmalloc.h" #include "time_stuff.h" #include "program_id.h" #include "pike_rusage.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; /* 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. * ie use low_find_lfun(), and NOT FIND_LFUN()! */ #define LFUN__SEARCH 45 #define LFUN__TYPES 46 #define LFUN__SERIALIZE 47 #define LFUN__DESERIALIZE 48 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; unsigned INT32 filename_strno; /* Index in strings. */ INT_TYPE linenumber; 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 */ /* * 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 /* 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 { PIKE_MEMORY_OBJECT_MEMBERS; /* Must be first */ 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 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 FIND_LFUN(P,N) ( dmalloc_touch(struct program *,(P))->flags & PROGRAM_FIXED?((P)->lfuns[(N)]):low_find_lfun((P), (N)) ) #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(); PMOD_EXPORT void really_free_program(struct program * p); PMOD_EXPORT void count_memory_in_programs(size_t *num, size_t *_size); 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 do_free_program (struct program *p); void ins_int(INT32 i, void (*func)(char tmp)); void ins_short(int 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); 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); 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 *)); int really_low_reference_inherited_identifier(struct program_state *q, int e, int i); 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); 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); int really_low_find_shared_string_identifier(struct pike_string *name, 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); int lfun_lookup_id(struct pike_string *lfun_name); int low_find_shared_string_identifier(struct pike_string *name, struct program *prog); struct ff_hash; int find_shared_string_identifier(struct pike_string *name, struct program *prog); PMOD_EXPORT int find_identifier(const char *name,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 quick_add_function(const char *name, int name_length, 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 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); void low_pop_local_variables(int level); void pop_local_variables(int level); void pop_compiler_frame(void); PMOD_EXPORT ptrdiff_t low_get_storage(struct program *o, struct program *p); PMOD_EXPORT char *get_storage(struct object *o, struct program *p); 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 *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); 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 */ void count_memory_in_programs(size_t *, size_t *); #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) \ visit_ref (pass_program (P), (REF_TYPE), \ (visit_thing_fn *) &visit_program, NULL) #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 */

pike.git/ src/ program.h > 5b189243bb196de79cdb1376eea5173ba4dbb441 [Annotate]