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- /* Symbol table definitions for GDB.
- Copyright (C) 1986, 1989, 1991 Free Software Foundation, Inc.
-
- This file is part of GDB.
-
- This program 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 2 of the License, or
- (at your option) any later version.
-
- This program 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 this program; if not, write to the Free Software
- Foundation, Inc., 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. Calling it the misc "function" vector is now a misnomer.
-
- 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;
-
- /* 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 */
-
- /* Modula-2 */
- TYPE_CODE_CHAR, /* *real* character type */
- TYPE_CODE_BOOL, /* Builtin Modula-2 BOOLEAN */
- };
-
- /* 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];
- };
-
- /* Special block numbers */
- #define GLOBAL_BLOCK 0
- #define STATIC_BLOCK 1
- #define FIRST_LOCAL_BLOCK 2
-
- 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_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 */
- 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;
- /* 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;
-
- /* Anything extra for this symtab. This is for target machines
- with special debugging info of some sort (which cannot just
- be represented in a normal symtab). */
- #if defined (EXTRA_SYMTAB_INFO)
- EXTRA_SYMTAB_INFO
- #endif
- };
-
- /* 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;
-
- /* Information that lets *read_symtab (below) locate the part of the
- symbol table that this psymtab corresponds to. This information
- is private to the format-dependent symbol reading routines.
-
- For dbxread: Offset within file 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 file's symbols).
- If ldsymlen is 0, the only reason for this thing's existence is
- the dependency list below. Nothing else will happen when it is
- read in.
-
- For mipsread: ldsymoff is the index of the FDR that this psymtab
- represents; ldsymlen points to the symbol table header HDRR from
- the symbol file that the psymtab was created from. */
- 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 global_psymbols[]. */
- 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). This is an offset and size within
- static_psymbols[]. */
- 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 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 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; }.
-
- In normal virtual function tables, OFFSET is unused.
- DELTA is the amount which is added to the apparent object's base
- address in order to point to the actual object to which the
- virtual function should be applied.
- PFN is a pointer to the virtual function. */
-
- #define VTBL_FNADDR_OFFSET 2
-
- /* Macro that yields non-zero value iff NAME is the prefix
- for C++ operator names. If you leave out the parenthesis
- here you will lose!
-
- Currently 'o' 'p' CPLUS_MARKER is used for both the symbol in the
- symbol-file and the names in gdb's symbol table. */
- #define OPNAME_PREFIX_P(NAME) ((NAME)[0] == 'o' && (NAME)[1] == 'p' \
- && (NAME)[2] == CPLUS_MARKER)
-
- #define VTBL_PREFIX_P(NAME) ((NAME)[3] == CPLUS_MARKER \
- && !strncmp ((NAME), "_vt", 3))
-
- /* 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 clear_pc_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_method_type ();
- extern struct type *lookup_class ();
- extern void smash_to_method_type ();
- void smash_to_member_type (
- #ifdef __STDC__
- struct type *, struct type *, struct type *
- #endif
- );
- extern struct type *allocate_stub_method ();
- /* 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;
-
- extern struct type *builtin_type_long_long;
- extern struct type *builtin_type_unsigned_long_long;
-
- /* Modula-2 types */
- extern struct type *builtin_type_m2_char;
- extern struct type *builtin_type_m2_int;
- extern struct type *builtin_type_m2_card;
- extern struct type *builtin_type_m2_real;
- extern struct type *builtin_type_m2_bool;
-
- /* LONG_LONG is defined if the host has "long long". */
- #ifdef 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 ();
-
- /* Symmisc.c */
- void free_symtab ();
-
- /* 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 ();
- void forget_cached_source_info (
- #ifdef __STDC__
- void
- #endif
- );
- void select_source_symtab (
- #ifdef __STDC__
- struct symtab *
- #endif
- );
-
- char **make_symbol_completion_list ();
-
- /* The entry point of a file we are reading. */
- extern CORE_ADDR entry_point;
-
- /* Maximum and minimum values of built-in types */
- #define MAX_OF_TYPE(t) \
- TYPE_UNSIGNED(t) ? UMAX_OF_SIZE(TYPE_LENGTH(t)) : MAX_OF_SIZE(TYPE_LENGTH(t))
-
- #define MIN_OF_TYPE(t) \
- TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) : MIN_OF_SIZE(TYPE_LENGTH(t))
-
- #endif /* symtab.h not already included. */
-