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Diffstat (limited to 'gdb/symtab.h')
| -rw-r--r-- | gdb/symtab.h | 884 |
1 files changed, 884 insertions, 0 deletions
diff --git a/gdb/symtab.h b/gdb/symtab.h new file mode 100644 index 0000000..e63c879 --- /dev/null +++ b/gdb/symtab.h @@ -0,0 +1,884 @@ +/* Symbol table definitions for GDB. + Copyright (C) 1986, 1989 Free Software Foundation, Inc. + +This file is part of GDB. + +GDB is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 1, or (at your option) +any later version. + +GDB is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GDB; see the file COPYING. If not, write to +the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#if !defined (SYMTAB_H) +#define SYMTAB_H 1 +#include <obstack.h> + +/* An obstack to hold objects that should be freed + when we load a new symbol table. + This includes the symbols made by dbxread + and the types that are not permanent. */ + +extern struct obstack *symbol_obstack; +extern struct obstack *psymbol_obstack; + +/* Some definitions and declarations to go with use of obstacks. */ +#define obstack_chunk_alloc xmalloc +#define obstack_chunk_free free +#ifdef __STDC__ +extern void *xmalloc (); +#else +extern char *xmalloc (); +#endif +extern void free (); + +/* Some macros for char-based bitfields. */ +#define B_SET(a,x) (a[x>>3] |= (1 << (x&7))) +#define B_CLR(a,x) (a[x>>3] &= ~(1 << (x&7))) +#define B_TST(a,x) (a[x>>3] & (1 << (x&7))) +#define B_TYPE unsigned char +#define B_BYTES(x) ( 1 + ((x)>>3) ) +#define B_CLRALL(a,x) bzero (a, B_BYTES(x)) + +/* gdb can know one or several symbol tables at the same time; + the ultimate intent is to have one for each separately-compiled module. + Each such symbol table is recorded by a struct symtab, and they + are all chained together. */ + +/* In addition, gdb can record any number of miscellaneous undebuggable + functions' addresses. In a system that appends _ to function names, + the _'s are removed from the names stored in this table. */ + +/* Actually, the misc function list is used to store *all* of the + global symbols (text, data, bss, and abs). It is sometimes used + to figure out what symtabs to read in. The "type" field is used + occasionally. + + The misc_info field is available for machine-specific information + that can be cached along with a misc function vector entry. The + AMD 29000 tdep.c uses it to remember things it has decoded from the + instructions in the function header, so it doesn't have to rederive + the info constantly (over a serial line). It is initialized to zero + and stays that way until target-dependent code sets it. */ + +enum misc_function_type {mf_unknown = 0, mf_text, mf_data, mf_bss, mf_abs}; + +struct misc_function +{ + char *name; + CORE_ADDR address; + char *misc_info; /* Random pointer to misc info. void * but for old C */ + enum misc_function_type type; +}; + +/* Address and length of the vector recording all misc function names/addresses. */ + +struct misc_function *misc_function_vector; +int misc_function_count; + +enum language {language_unknown, language_c}; + +/* All data types of symbols in the compiled program + are represented by `struct type' objects. + All of these objects are pointed to by the typevector. + The type vector may have empty slots that contain zero. */ + +struct typevector +{ + int length; /* Number of types described */ + struct type *type[1]; +}; + +/* Different kinds of data types are distinguished by the `code' field. */ + +enum type_code +{ + TYPE_CODE_UNDEF, /* Not used; catches errors */ + TYPE_CODE_PTR, /* Pointer type */ + TYPE_CODE_ARRAY, /* Array type, lower bound zero */ + TYPE_CODE_STRUCT, /* C struct or Pascal record */ + TYPE_CODE_UNION, /* C union or Pascal variant part */ + TYPE_CODE_ENUM, /* Enumeration type */ + TYPE_CODE_FUNC, /* Function type */ + TYPE_CODE_INT, /* Integer type */ + TYPE_CODE_FLT, /* Floating type */ + TYPE_CODE_VOID, /* Void type (values zero length) */ + TYPE_CODE_SET, /* Pascal sets */ + TYPE_CODE_RANGE, /* Range (integers within spec'd bounds) */ + TYPE_CODE_PASCAL_ARRAY, /* Array with explicit type of index */ + TYPE_CODE_ERROR, /* Unknown type */ + + /* C++ */ + TYPE_CODE_MEMBER, /* Member type */ + TYPE_CODE_METHOD, /* Method type */ + TYPE_CODE_REF, /* C++ Reference types */ +}; + +/* This appears in a type's flags word for an unsigned integer type. */ +#define TYPE_FLAG_UNSIGNED 1 +/* This appears in a type's flags word + if it is a (pointer to a|function returning a)* built in scalar type. + These types are never freed. */ +#define TYPE_FLAG_PERM 4 +/* This appears in a type's flags word if it is a stub type (eg. if + someone referenced a type that wasn't definined in a source file + via (struct sir_not_appearing_in_this_film *)). */ +#define TYPE_FLAG_STUB 8 +/* Set when a class has a constructor defined */ +#define TYPE_FLAG_HAS_CONSTRUCTOR 256 +/* Set when a class has a destructor defined */ +#define TYPE_FLAG_HAS_DESTRUCTOR 512 + +struct type +{ + /* Code for kind of type */ + enum type_code code; + /* Name of this type, or zero if none. + This is used for printing only, except by poorly designed C++ code. + Type names specified as input are defined by symbols. */ + char *name; + /* Length in bytes of storage for a value of this type */ + unsigned length; + /* For a pointer type, describes the type of object pointed to. + For an array type, describes the type of the elements. + For a function or method type, describes the type of the value. + For a range type, describes the type of the full range. + Unused otherwise. */ + struct type *target_type; + /* Type that is a pointer to this type. + Zero if no such pointer-to type is known yet. + The debugger may add the address of such a type + if it has to construct one later. */ + struct type *pointer_type; + /* C++: also need a reference type. */ + struct type *reference_type; + struct type **arg_types; + + /* Type that is a function returning this type. + Zero if no such function type is known here. + The debugger may add the address of such a type + if it has to construct one later. */ + struct type *function_type; + +/* Handling of pointers to members: + TYPE_MAIN_VARIANT is used for pointer and pointer + to member types. Normally it the value of the address of its + containing type. However, for pointers to members, we must be + able to allocate pointer to member types and look them up + from some place of reference. + NEXT_VARIANT is the next element in the chain. + + A long time ago (Jul 88; GDB 2.5) Tiemann said that main_variant + may no longer be necessary and that he might eliminate it. I don't + know whether this is still true (or ever was). */ + struct type *main_variant, *next_variant; + + /* Flags about this type. */ + short flags; + /* Number of fields described for this type */ + short nfields; + /* For structure and union types, a description of each field. + For set and pascal array types, there is one "field", + whose type is the domain type of the set or array. + For range types, there are two "fields", + the minimum and maximum values (both inclusive). + For enum types, each possible value is described by one "field". + + Using a pointer to a separate array of fields + allows all types to have the same size, which is useful + because we can allocate the space for a type before + we know what to put in it. */ + struct field + { + /* Position of this field, counting in bits from start of + containing structure. For a function type, this is the + position in the argument list of this argument. + For a range bound or enum value, this is the value itself. */ + int bitpos; + /* Size of this field, in bits, or zero if not packed. + For an unpacked field, the field's type's length + says how many bytes the field occupies. */ + int bitsize; + /* In a struct or enum type, type of this field. + In a function type, type of this argument. + In an array type, the domain-type of the array. */ + struct type *type; + /* Name of field, value or argument. + Zero for range bounds and array domains. */ + char *name; + } *fields; + + /* C++ */ + B_TYPE *virtual_field_bits; /* if base class is virtual */ + B_TYPE *private_field_bits; + B_TYPE *protected_field_bits; + + /* Number of methods described for this type */ + short nfn_fields; + /* Number of base classes this type derives from. */ + short n_baseclasses; + + /* Number of methods described for this type plus all the + methods that it derives from. */ + int nfn_fields_total; + + /* For classes, structures, and unions, a description of each field, + which consists of an overloaded name, followed by the types of + arguments that the method expects, and then the name after it + has been renamed to make it distinct. */ + struct fn_fieldlist + { + /* The overloaded name. */ + char *name; + /* The number of methods with this name. */ + int length; + /* The list of methods. */ + struct fn_field + { +#if 0 + /* The overloaded name */ + char *name; +#endif + /* The return value of the method */ + struct type *type; + /* The argument list */ + struct type **args; + /* The name after it has been processed */ + char *physname; + + /* For virtual functions. */ + /* First baseclass that defines this virtual function. */ + struct type *fcontext; + /* Index into that baseclass's virtual function table, + minus 1; else if static: VOFFSET_STATIC; else: 0. */ + int voffset; +# define VOFFSET_STATIC (-1) + } *fn_fields; + + B_TYPE *private_fn_field_bits; + B_TYPE *protected_fn_field_bits; + + } *fn_fieldlists; + + unsigned char via_protected; + unsigned char via_public; + + /* For types with virtual functions, VPTR_BASETYPE is the base class which + defined the virtual function table pointer. VPTR_FIELDNO is + the field number of that pointer in the structure. + + For types that are pointer to member types, VPTR_BASETYPE + ifs the type that this pointer is a member of. + + Unused otherwise. */ + struct type *vptr_basetype; + + int vptr_fieldno; +}; + +/* All of the name-scope contours of the program + are represented by `struct block' objects. + All of these objects are pointed to by the blockvector. + + Each block represents one name scope. + Each lexical context has its own block. + + The first two blocks in the blockvector are special. + The first one contains all the symbols defined in this compilation + whose scope is the entire program linked together. + The second one contains all the symbols whose scope is the + entire compilation excluding other separate compilations. + In C, these correspond to global symbols and static symbols. + + Each block records a range of core addresses for the code that + is in the scope of the block. The first two special blocks + give, for the range of code, the entire range of code produced + by the compilation that the symbol segment belongs to. + + The blocks appear in the blockvector + in order of increasing starting-address, + and, within that, in order of decreasing ending-address. + + This implies that within the body of one function + the blocks appear in the order of a depth-first tree walk. */ + +struct blockvector +{ + /* Number of blocks in the list. */ + int nblocks; + /* The blocks themselves. */ + struct block *block[1]; +}; + +struct block +{ + /* Addresses in the executable code that are in this block. + Note: in an unrelocated symbol segment in a file, + these are always zero. They can be filled in from the + N_LBRAC and N_RBRAC symbols in the loader symbol table. */ + CORE_ADDR startaddr, endaddr; + /* The symbol that names this block, + if the block is the body of a function; + otherwise, zero. + Note: In an unrelocated symbol segment in an object file, + this field may be zero even when the block has a name. + That is because the block is output before the name + (since the name resides in a higher block). + Since the symbol does point to the block (as its value), + it is possible to find the block and set its name properly. */ + struct symbol *function; + /* The `struct block' for the containing block, or 0 if none. */ + /* Note that in an unrelocated symbol segment in an object file + this pointer may be zero when the correct value should be + the second special block (for symbols whose scope is one compilation). + This is because the compiler ouptuts the special blocks at the + very end, after the other blocks. */ + struct block *superblock; + /* A flag indicating whether or not the fucntion corresponding + to this block was compiled with gcc or not. If there is no + function corresponding to this block, this meaning of this flag + is undefined. (In practice it will be 1 if the block was created + while processing a file compiled with gcc and 0 when not). */ + unsigned char gcc_compile_flag; + /* Number of local symbols. */ + int nsyms; + /* The symbols. */ + struct symbol *sym[1]; +}; + +/* Represent one symbol name; a variable, constant, function or typedef. */ + +/* Different name spaces for symbols. Looking up a symbol specifies + a namespace and ignores symbol definitions in other name spaces. + + VAR_NAMESPACE is the usual namespace. + In C, this contains variables, function names, typedef names + and enum type values. + + STRUCT_NAMESPACE is used in C to hold struct, union and enum type names. + Thus, if `struct foo' is used in a C program, + it produces a symbol named `foo' in the STRUCT_NAMESPACE. + + LABEL_NAMESPACE may be used for names of labels (for gotos); + currently it is not used and labels are not recorded at all. */ + +/* For a non-global symbol allocated statically, + the correct core address cannot be determined by the compiler. + The compiler puts an index number into the symbol's value field. + This index number can be matched with the "desc" field of + an entry in the loader symbol table. */ + +enum namespace +{ + UNDEF_NAMESPACE, VAR_NAMESPACE, STRUCT_NAMESPACE, LABEL_NAMESPACE, +}; + +/* An address-class says where to find the value of a symbol. */ + +enum address_class +{ + LOC_UNDEF, /* Not used; catches errors */ + LOC_CONST, /* Value is constant int SYMBOL_VALUE, host byteorder */ + LOC_STATIC, /* Value is at fixed address SYMBOL_VALUE_ADDRESS */ + LOC_REGISTER, /* Value is in register */ + LOC_ARG, /* Value is at spec'd offset in arglist */ + LOC_REF_ARG, /* Value address is at spec'd offset in arglist. */ + LOC_REGPARM, /* Value is at spec'd offset in register window */ + LOC_LOCAL, /* Value is at spec'd offset in stack frame */ + LOC_TYPEDEF, /* Value not used; definition in SYMBOL_TYPE + Symbols in the namespace STRUCT_NAMESPACE + all have this class. */ + LOC_LABEL, /* Value is address SYMBOL_VALUE_ADDRESS in the code */ + LOC_BLOCK, /* Value is address SYMBOL_VALUE_BLOCK of a + `struct block'. Function names have this class. */ + LOC_EXTERNAL, /* Value is at address SYMBOL_VALUE_ADDRESS not in + this compilation. + This is used only in psymtabs; in symtabs + LOC_STATIC is used instead (since in that case + we take the time to find the address). */ + LOC_CONST_BYTES, /* Value is a constant byte-sequence pointed to by + SYMBOL_VALUE_ADDRESS, in target byte order. */ + LOC_LOCAL_ARG, /* Value is arg at spec'd offset in stack frame. + Differs from LOC_LOCAL in that symbol is an + argument; differs from LOC_ARG in that we find it + in the frame (FRAME_LOCALS_ADDRESS), not in the + arglist (FRAME_ARGS_ADDRESS). Added for i960, + which passes args in regs then copies to frame. */ +}; + +struct symbol +{ + /* Symbol name */ + char *name; + /* Name space code. */ + enum namespace namespace; + /* Address class */ + enum address_class class; + /* Data type of value */ + struct type *type; + + /* Line number of definition. */ + unsigned short line; + + /* constant value, or address if static, or register number, + or offset in arguments, or offset in stack frame. All of + these are in host byte order (though what they point to might + be in target byte order, e.g. LOC_CONST_BYTES). */ + union + { + long value; /* for LOC_CONST, LOC_REGISTER, LOC_ARG, + LOC_REF_ARG, LOC_REGPARM, LOC_LOCAL */ + struct block *block; /* for LOC_BLOCK */ + char *bytes; /* for LOC_CONST_BYTES */ + CORE_ADDR address; /* for LOC_STATIC, LOC_LABEL, LOC_EXTERNAL */ + struct symbol *chain; /* for opaque typedef struct chain */ + } + value; +}; + + +/* A partial_symbol records the name, namespace, and address class of + symbols whose types we have not parsed yet. For functions, it also + contains their memory address, so we can find them from a PC value. + Each partial_symbol sits in a partial_symtab, all of which are chained + on the partial_symtab_list and which points to the corresponding + normal symtab once the partial_symtab has been referenced. */ + +struct partial_symbol +{ + /* Symbol name */ + char *name; + /* Name space code. */ + enum namespace namespace; + /* Address class (for info_symbols) */ + enum address_class class; + /* Value (only used for static functions currently). Done this + way so that we can use the struct symbol macros. + Note that the address of a function is SYMBOL_VALUE_ADDRESS (pst) + in a partial symbol table, but BLOCK_START (SYMBOL_BLOCK_VALUE (st)) + in a symbol table. */ + union + { + long value; + CORE_ADDR address; + } + value; +}; + +/* Source-file information. + This describes the relation between source files and line numbers + and addresses in the program text. */ + +struct sourcevector +{ + int length; /* Number of source files described */ + struct source *source[1]; /* Descriptions of the files */ +}; + +/* Each item represents a line-->pc (or the reverse) mapping. This is + somewhat more wasteful of space than one might wish, but since only + the files which are actually debugged are read in to core, we don't + waste much space. + + Each item used to be an int; either minus a line number, or a + program counter. If it represents a line number, that is the line + described by the next program counter value. If it is positive, it + is the program counter at which the code for the next line starts. */ + +struct linetable_entry +{ + int line; + CORE_ADDR pc; +}; + +struct linetable +{ + int nitems; + struct linetable_entry item[1]; +}; + +/* All the information on one source file. */ + +struct source +{ + char *name; /* Name of file */ + struct linetable contents; +}; + +/* Each source file is represented by a struct symtab. + These objects are chained through the `next' field. */ + +struct symtab + { + /* Chain of all existing symtabs. */ + struct symtab *next; + /* List of all symbol scope blocks for this symtab. */ + struct blockvector *blockvector; + /* Table mapping core addresses to line numbers for this file. */ + struct linetable *linetable; + /* Vector containing all types defined for this symtab. */ + struct typevector *typevector; + /* Name of this source file. */ + char *filename; + /* Directory in which it was compiled, or NULL if we don't know. */ + char *dirname; + /* This component says how to free the data we point to: + free_contents => do a tree walk and free each object. + free_nothing => do nothing; some other symtab will free + the data this one uses. + free_linetable => free just the linetable. */ + enum free_code {free_nothing, free_contents, free_linetable} + free_code; + /* Pointer to one block of storage to be freed, if nonzero. */ + /* This is IN ADDITION to the action indicated by free_code. */ + char *free_ptr; + /* Total number of lines found in source file. */ + int nlines; + /* Array mapping line number to character position. */ + int *line_charpos; + /* Language of this source file. */ + enum language language; + /* String of version information. May be zero. */ + char *version; + /* Full name of file as found by searching the source path. + 0 if not yet known. */ + char *fullname; + }; + +/* Each source file that has not been fully read in is represented by + a partial_symtab. This contains the information on where in the + executable the debugging symbols for a specific file are, and a + list of names of global symbols which are located in this file. + They are all chained on partial_symtab_list. + + Even after the source file has been read into a symtab, the + partial_symtab remains around. They are allocated on an obstack, + psymbol_obstack. FIXME, this is bad for dynamic linking or VxWorks- + style execution of a bunch of .o's. */ +struct partial_symtab +{ + /* Chain of all existing partial symtabs. */ + struct partial_symtab *next; + /* Name of the source file which this partial_symtab defines */ + char *filename; + + /* Name of the symbol file from which symbols should be read. */ + char *symfile_name; + /* Address relative to which the symbols in this file are. Need to + relocate by this amount when reading in symbols from the symbol + file. */ + CORE_ADDR addr; + + /* Offset within loader symbol table of first local symbol for this + file and length (in bytes) of the section of the symbol table + devoted to this file's symbols (actually, the section bracketed + may contain more than just this files symbols + If ldsymlen is 0, the only reason for this things existence is + the dependency list below. Nothing else will happen when it is + read in. */ + int ldsymoff, ldsymlen; + /* Range of text addresses covered by this file; texthigh is the + beginning of the next section. */ + CORE_ADDR textlow, texthigh; + /* Array of pointers to all of the partial_symtab's which this one + depends on. Since this array can only be set to previous or + the current (?) psymtab, this dependency tree is guaranteed not + to have any loops. */ + struct partial_symtab **dependencies; + int number_of_dependencies; + /* Global symbol list. This list will be sorted after readin to + improve access. Binary search will be the usual method of + finding a symbol within it. globals_offset is an integer offset + within ps_globals */ + int globals_offset, n_global_syms; + /* Static symbol list. This list will *not* be sorted after readin; + to find a symbol in it, exhaustive search must be used. This is + reasonable because searches through this list will eventually + lead to either the read in of a files symbols for real (assumed + to take a *lot* of time; check) or an error (and we don't care + how long errors take). */ + int statics_offset, n_static_syms; + /* Pointer to symtab eventually allocated for this source file, 0 if + !readin or if we haven't looked for the symtab after it was readin. */ + struct symtab *symtab; + /* Pointer to function which will read in the symtab corresponding to + this psymtab. */ + void (*read_symtab) (); + /* Non-zero if the symtab corresponding to this psymtab has been + readin */ + unsigned char readin; +}; + +/* A fast way to get from a psymtab to its symtab (after the first time). */ +#define PSYMTAB_TO_SYMTAB(pst) ((pst)->symtab? \ + (pst)->symtab: \ + psymtab_to_symtab (pst) ) + +/* This is the list of struct symtab's that gdb considers current. */ + +struct symtab *symtab_list; + +/* This is the list of struct partial_symtab's that gdb may need to access */ + +struct partial_symtab *partial_symtab_list; + +/* This symtab variable specifies the current file for printing source lines */ + +struct symtab *current_source_symtab; + +/* This is the next line to print for listing source lines. */ + +int current_source_line; + +#define BLOCKLIST(symtab) (symtab)->blockvector +#define BLOCKVECTOR(symtab) (symtab)->blockvector + +#define TYPEVECTOR(symtab) (symtab)->typevector + +#define LINELIST(symtab) (symtab)->linetable +#define LINETABLE(symtab) (symtab)->linetable + +/* Macros normally used to access components of symbol table structures. */ + +#define BLOCKLIST_NBLOCKS(blocklist) (blocklist)->nblocks +#define BLOCKLIST_BLOCK(blocklist,n) (blocklist)->block[n] +#define BLOCKVECTOR_NBLOCKS(blocklist) (blocklist)->nblocks +#define BLOCKVECTOR_BLOCK(blocklist,n) (blocklist)->block[n] + +#define TYPEVECTOR_NTYPES(typelist) (typelist)->length +#define TYPEVECTOR_TYPE(typelist,n) (typelist)->type[n] + +#define BLOCK_START(bl) (bl)->startaddr +#define BLOCK_END(bl) (bl)->endaddr +#define BLOCK_NSYMS(bl) (bl)->nsyms +#define BLOCK_SYM(bl, n) (bl)->sym[n] +#define BLOCK_FUNCTION(bl) (bl)->function +#define BLOCK_SUPERBLOCK(bl) (bl)->superblock +#define BLOCK_GCC_COMPILED(bl) (bl)->gcc_compile_flag + +/* Nonzero if symbols of block BL should be sorted alphabetically. */ +#define BLOCK_SHOULD_SORT(bl) ((bl)->nsyms >= 40) + +#define SYMBOL_NAME(symbol) (symbol)->name +#define SYMBOL_NAMESPACE(symbol) (symbol)->namespace +#define SYMBOL_CLASS(symbol) (symbol)->class +#define SYMBOL_VALUE(symbol) (symbol)->value.value +#define SYMBOL_VALUE_ADDRESS(symbol) (symbol)->value.address +#define SYMBOL_VALUE_BYTES(symbol) (symbol)->value.bytes +#define SYMBOL_BLOCK_VALUE(symbol) (symbol)->value.block +#define SYMBOL_VALUE_CHAIN(symbol) (symbol)->value.chain +#define SYMBOL_TYPE(symbol) (symbol)->type +#define SYMBOL_LINE(symbol) (symbol)->line + +#define TYPE_NAME(thistype) (thistype)->name +#define TYPE_TARGET_TYPE(thistype) (thistype)->target_type +#define TYPE_POINTER_TYPE(thistype) (thistype)->pointer_type +#define TYPE_REFERENCE_TYPE(thistype) (thistype)->reference_type +#define TYPE_FUNCTION_TYPE(thistype) (thistype)->function_type +#define TYPE_MAIN_VARIANT(thistype) (thistype)->main_variant +#define TYPE_NEXT_VARIANT(thistype) (thistype)->next_variant +#define TYPE_LENGTH(thistype) (thistype)->length +#define TYPE_FLAGS(thistype) (thistype)->flags +#define TYPE_UNSIGNED(thistype) ((thistype)->flags & TYPE_FLAG_UNSIGNED) +#define TYPE_CODE(thistype) (thistype)->code +#define TYPE_NFIELDS(thistype) (thistype)->nfields +#define TYPE_FIELDS(thistype) (thistype)->fields +/* C++ */ +#define TYPE_VPTR_BASETYPE(thistype) (thistype)->vptr_basetype +#define TYPE_DOMAIN_TYPE(thistype) (thistype)->vptr_basetype +#define TYPE_VPTR_FIELDNO(thistype) (thistype)->vptr_fieldno +#define TYPE_FN_FIELDS(thistype) (thistype)->fn_fields +#define TYPE_NFN_FIELDS(thistype) (thistype)->nfn_fields +#define TYPE_NFN_FIELDS_TOTAL(thistype) (thistype)->nfn_fields_total +#define TYPE_ARG_TYPES(thistype) (thistype)->arg_types +#define TYPE_BASECLASS(thistype,index) (thistype)->fields[index].type +#define TYPE_N_BASECLASSES(thistype) (thistype)->n_baseclasses +#define TYPE_BASECLASS_NAME(thistype,index) (thistype)->fields[index].name +#define TYPE_BASECLASS_BITPOS(thistype,index) (thistype)->fields[index].bitpos +#define BASETYPE_VIA_PUBLIC(thistype, index) (!TYPE_FIELD_PRIVATE(thistype, index)) +#define BASETYPE_VIA_VIRTUAL(thistype, index) B_TST((thistype)->virtual_field_bits, (index)) + +#define TYPE_FIELD(thistype, n) (thistype)->fields[n] +#define TYPE_FIELD_TYPE(thistype, n) (thistype)->fields[n].type +#define TYPE_FIELD_NAME(thistype, n) (thistype)->fields[n].name +#define TYPE_FIELD_VALUE(thistype, n) (* (int*) &(thistype)->fields[n].type) +#define TYPE_FIELD_BITPOS(thistype, n) (thistype)->fields[n].bitpos +#define TYPE_FIELD_BITSIZE(thistype, n) (thistype)->fields[n].bitsize +#define TYPE_FIELD_PACKED(thistype, n) (thistype)->fields[n].bitsize + +#define TYPE_FIELD_PRIVATE_BITS(thistype) (thistype)->private_field_bits +#define TYPE_FIELD_PROTECTED_BITS(thistype) (thistype)->protected_field_bits +#define TYPE_FIELD_VIRTUAL_BITS(thistype) (thistype)->virtual_field_bits +#define SET_TYPE_FIELD_PRIVATE(thistype, n) B_SET ((thistype)->private_field_bits, (n)) +#define SET_TYPE_FIELD_PROTECTED(thistype, n) B_SET ((thistype)->protected_field_bits, (n)) +#define SET_TYPE_FIELD_VIRTUAL(thistype, n) B_SET ((thistype)->virtual_field_bits, (n)) +#define TYPE_FIELD_PRIVATE(thistype, n) B_TST((thistype)->private_field_bits, (n)) +#define TYPE_FIELD_PROTECTED(thistype, n) B_TST((thistype)->protected_field_bits, (n)) +#define TYPE_FIELD_VIRTUAL(thistype, n) B_TST((thistype)->virtual_field_bits, (n)) + +#define TYPE_HAS_DESTRUCTOR(thistype) ((thistype)->flags & TYPE_FLAG_HAS_DESTRUCTOR) +#define TYPE_HAS_CONSTRUCTOR(thistype) ((thistype)->flags & TYPE_FLAG_HAS_CONSTRUCTOR) + +#define TYPE_FIELD_STATIC(thistype, n) ((thistype)->fields[n].bitpos == -1) +#define TYPE_FIELD_STATIC_PHYSNAME(thistype, n) ((char *)(thistype)->fields[n].bitsize) + +#define TYPE_FN_FIELDLISTS(thistype) (thistype)->fn_fieldlists +#define TYPE_FN_FIELDLIST(thistype, n) (thistype)->fn_fieldlists[n] +#define TYPE_FN_FIELDLIST1(thistype, n) (thistype)->fn_fieldlists[n].fn_fields +#define TYPE_FN_FIELDLIST_NAME(thistype, n) (thistype)->fn_fieldlists[n].name +#define TYPE_FN_FIELDLIST_LENGTH(thistype, n) (thistype)->fn_fieldlists[n].length + +#define TYPE_FN_FIELD(thistype, n) (thistype)[n] +#define TYPE_FN_FIELD_NAME(thistype, n) (thistype)[n].name +#define TYPE_FN_FIELD_TYPE(thistype, n) (thistype)[n].type +#define TYPE_FN_FIELD_ARGS(thistype, n) TYPE_ARG_TYPES ((thistype)[n].type) +#define TYPE_FN_FIELD_PHYSNAME(thistype, n) (thistype)[n].physname +#define TYPE_FN_FIELD_VIRTUAL_P(thistype, n) ((thistype)[n].voffset > 0) +#define TYPE_FN_FIELD_STATIC_P(thistype, n) ((thistype)[n].voffset == VOFFSET_STATIC) +#define TYPE_FN_FIELD_VOFFSET(thistype, n) ((thistype)[n].voffset-1) +#define TYPE_FN_FIELD_FCONTEXT(thistype, n) ((thistype)[n].fcontext) + +#define TYPE_FN_PRIVATE_BITS(thistype) (thistype).private_fn_field_bits +#define TYPE_FN_PROTECTED_BITS(thistype) (thistype).protected_fn_field_bits +#define SET_TYPE_FN_PRIVATE(thistype, n) B_SET ((thistype).private_fn_field_bits, n) +#define SET_TYPE_FN_PROTECTED(thistype, n) B_SET ((thistype).protected_fn_field_bits, n) +#define TYPE_FN_PRIVATE(thistype, n) B_TST ((thistype).private_fn_field_bits, n) +#define TYPE_FN_PROTECTED(thistype, n) B_TST ((thistype).protected_fn_field_bits, n) + +/* The virtual function table is now an array of structures + which have the form { int16 offset, delta; void *pfn; }. + + Gee, can we have more documentation than that? FIXME. -- gnu */ + +#define VTBL_FNADDR_OFFSET 2 + +/* Functions that work on the objects described above */ + +extern struct symtab *lookup_symtab (); +extern struct symbol *lookup_symbol (); +extern struct symbol *lookup_block_symbol (); +extern int lookup_misc_func (); +extern void check_stub_type (); +extern void check_stub_method (); +extern struct type *lookup_primitive_typename (); +extern struct type *lookup_typename (); +extern struct type *lookup_unsigned_typename (); +extern struct type *lookup_struct (); +extern struct type *lookup_union (); +extern struct type *lookup_enum (); +extern struct type *lookup_struct_elt_type (); +extern struct type *lookup_pointer_type (); +extern struct type *lookup_function_type (); +extern struct type *lookup_basetype_type (); +extern struct type *create_array_type (); +extern struct symbol *block_function (); +extern struct symbol *find_pc_function (); +extern int find_pc_partial_function (); +extern void clearpc_function_cache (); +extern struct partial_symtab *lookup_partial_symtab (); +extern struct partial_symtab *find_pc_psymtab (); +extern struct symtab *find_pc_symtab (); +extern struct partial_symbol *find_pc_psymbol (); +extern int find_pc_misc_function (); +extern int find_pc_line_pc_range (); +extern char *type_name_no_tag (); +extern int contained_in(); + +/* C++ stuff. */ +extern struct type *lookup_reference_type (); +extern struct type *lookup_member_type (); +extern struct type *lookup_class (); +extern void smash_to_method_type (); +/* end of C++ stuff. */ + +extern void free_all_symtabs (); +extern void free_all_psymtabs (); +extern void free_inclink_symtabs (); +extern void reread_symbols (); + +extern struct type *builtin_type_void; +extern struct type *builtin_type_char; +extern struct type *builtin_type_short; +extern struct type *builtin_type_int; +extern struct type *builtin_type_long; +extern struct type *builtin_type_unsigned_char; +extern struct type *builtin_type_unsigned_short; +extern struct type *builtin_type_unsigned_int; +extern struct type *builtin_type_unsigned_long; +extern struct type *builtin_type_float; +extern struct type *builtin_type_double; +/* This type represents a type that was unrecognized in symbol + read-in. */ +extern struct type *builtin_type_error; + +#ifdef LONG_LONG +extern struct type *builtin_type_long_long; +extern struct type *builtin_type_unsigned_long_long; + +#define BUILTIN_TYPE_LONGEST builtin_type_long_long +#define BUILTIN_TYPE_UNSIGNED_LONGEST builtin_type_unsigned_long_long +/* This should not be a typedef, because "unsigned LONGEST" needs + to work. */ +#define LONGEST long long + +#else /* not LONG_LONG. */ + +#define BUILTIN_TYPE_LONGEST builtin_type_long +#define BUILTIN_TYPE_UNSIGNED_LONGEST builtin_type_unsigned_long +#define LONGEST long + +#endif /* not LONG_LONG. */ + +struct symtab_and_line +{ + struct symtab *symtab; + int line; + CORE_ADDR pc; + CORE_ADDR end; +}; + +struct symtabs_and_lines +{ + struct symtab_and_line *sals; + int nelts; +}; + +/* Given a pc value, return line number it is in. + Second arg nonzero means if pc is on the boundary + use the previous statement's line number. */ + +struct symtab_and_line find_pc_line (); + +/* Given a symtab and line number, return the pc there. */ +extern CORE_ADDR find_line_pc (); +extern int find_line_pc_range (); + +/* Given a string, return the line specified by it. + For commands like "list" and "breakpoint". */ + +struct symtabs_and_lines decode_line_spec (); +struct symtabs_and_lines decode_line_spec_1 (); +struct symtabs_and_lines decode_line_1 (); + +/* Symbol-reading stuff in symfile.c and solib.c. */ +struct symtab *psymtab_to_symtab (); +void clear_solib (); +void symbol_file_add (); + +/* source.c */ +int identify_source_line (); +void print_source_lines (); + +char **make_symbol_completion_list (); + +/* The entry point of a file we are reading. */ +extern CORE_ADDR entry_point; + +#endif /* symtab.h not already included. */ |