/* Symbol table definitions for GDB.
- Copyright (C) 1986, 1989, 1991 Free Software Foundation, Inc.
+ Copyright (C) 1986, 1989, 1991, 1992 Free Software Foundation, Inc.
This file is part of GDB.
#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. */
+
+#include "obstack.h"
#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
+
+/* Define a structure for the information that is common to all symbol types,
+ including minimal symbols, partial symbols, and full symbols. */
+
+struct general_symbol_info
{
+ /* Name of the symbol. This is a required field. Storage for the name is
+ allocated on the psymbol_obstack or symbol_obstack for the associated
+ objfile. */
+
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. */
+ /* 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).
-struct misc_function *misc_function_vector;
-int misc_function_count;
-\f
-/* Different kinds of data types are distinguished by the `code' field. */
+ 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. */
-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 */
+ union
+ {
+ /* for LOC_CONST, LOC_REGISTER, LOC_ARG, LOC_REF_ARG, LOC_REGPARM,
+ LOC_LOCAL */
+
+ long value;
+
+ /* for LOC_BLOCK */
+
+ struct block *block;
+
+ /* for LOC_CONST_BYTES */
+
+ char *bytes;
+
+ /* for LOC_STATIC, LOC_LABEL */
+
+ CORE_ADDR address;
+
+ /* for opaque typedef struct chain */
+
+ struct symbol *chain;
+ }
+ value;
+
+ /* In a multilanguage environment, some language specific information may
+ need to be recorded along with each symbol. */
+
+ struct language_dependent_info
+ {
+
+ /* Record the language that this information applies to. */
+
+ enum language language;
+
+ /* Since one and only one language can apply, wrap the information inside
+ a union. */
+
+ union
+ {
+ /* For C++ */
+ struct
+ {
+ char *demangled_name;
+ } cplus_specific;
+ } lang_u;
+ } lang_specific;
};
-/* 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
+#define SYMBOL_NAME(symbol) (symbol)->ginfo.name
+#define SYMBOL_VALUE(symbol) (symbol)->ginfo.value.value
+#define SYMBOL_VALUE_ADDRESS(symbol) (symbol)->ginfo.value.address
+#define SYMBOL_VALUE_BYTES(symbol) (symbol)->ginfo.value.bytes
+#define SYMBOL_BLOCK_VALUE(symbol) (symbol)->ginfo.value.block
+#define SYMBOL_VALUE_CHAIN(symbol) (symbol)->ginfo.value.chain
+#define SYMBOL_LANGUAGE(symbol) (symbol)->ginfo.lang_specific.language
+#define SYMBOL_DEMANGLED_NAME(symbol) \
+ (symbol)->ginfo.lang_specific.lang_u.cplus_specific.demangled_name
+
+extern int demangle; /* We reference it, so go ahead and declare it. */
+
+/* Macro that returns the "natural source name" of a symbol. In C++ this is
+ the "demangled" form of the name if demangle is on and the "mangled" form
+ of the name if demangle is off. In other languages this is just the
+ symbol name. */
+
+#define SYMBOL_SOURCE_NAME(symbol) \
+ ((demangle && (SYMBOL_LANGUAGE(symbol) == language_cplus) && \
+ (SYMBOL_DEMANGLED_NAME(symbol) != NULL)) ? \
+ SYMBOL_DEMANGLED_NAME (symbol) : SYMBOL_NAME (symbol))
+
+/* Macro that returns the "natural assembly name" of a symbol. In C++ this is
+ the "mangled" form of the name if demangle is off, or if demangle is on and
+ asm_demangle is off. Otherwise if asm_demangle is on it is the "demangled"
+ form. In other languages this is just the symbol name. */
+
+#define SYMBOL_LINKAGE_NAME(symbol) \
+ ((demangle && asm_demangle && (SYMBOL_LANGUAGE(symbol) == language_cplus) &&\
+ (SYMBOL_DEMANGLED_NAME(symbol) != NULL)) ? \
+ SYMBOL_DEMANGLED_NAME (symbol) : SYMBOL_NAME (symbol))
+
+/* Macro that tests a symbol for a match against a specified name string.
+ First test the unencoded name, then looks for and test a C++ encoded
+ name if it exists. Note that whitespace is ignored while attempting to
+ match a C++ encoded name, so that "foo::bar(int,long)" is the same as
+ "foo :: bar (int, long)".
+ Evaluates to zero if the match fails, or nonzero if it succeeds. */
+
+#define SYMBOL_MATCHES_NAME(symbol, name) \
+ (STREQ (SYMBOL_NAME (symbol), (name)) || \
+ (SYMBOL_LANGUAGE (symbol) == language_cplus && \
+ SYMBOL_DEMANGLED_NAME (symbol) != NULL && \
+ strcmp_iw (SYMBOL_DEMANGLED_NAME (symbol), (name)) == 0))
+
+/* Macro that tests a symbol for an re-match against the last compiled regular
+ expression. First test the unencoded name, then look for and test a C++
+ encoded name if it exists.
+ Evaluates to zero if the match fails, or nonzero if it succeeds. */
+
+#define SYMBOL_MATCHES_REGEXP(symbol) \
+ (re_exec (SYMBOL_NAME (symbol)) != 0 || \
+ (SYMBOL_LANGUAGE (symbol) == language_cplus && \
+ SYMBOL_DEMANGLED_NAME (symbol) != NULL && \
+ re_exec (SYMBOL_DEMANGLED_NAME (symbol)) != 0))
+
+/* Define a simple structure used to hold some very basic information about
+ all defined global symbols (text, data, bss, abs, etc). The only required
+ information is the general_symbol_info.
+
+ In many cases, even if a file was compiled with no special options for
+ debugging at all, as long as was not stripped it will contain sufficient
+ information to build a useful minimal symbol table using this structure.
+ Even when a file contains enough debugging information to build a full
+ symbol table, these minimal symbols are still useful for quickly mapping
+ between names and addresses, and vice versa. They are also sometimes
+ used to figure out what full symbol table entries need to be read in. */
+
+struct minimal_symbol
{
- /* 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 general symbol info required for all types of symbols. */
+
+ struct general_symbol_info ginfo;
+
+ /* The info field is available for caching machine-specific information that
+ 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. Storage for any data
+ pointed to by this field should be allocated on the symbol_obstack for
+ the associated objfile. The type would be "void *" except for reasons
+ of compatibility with older compilers. This field is optional. */
+
+ char *info;
+
+ /* Classification types for this symbol. These should be taken as "advisory
+ only", since if gdb can't easily figure out a classification it simply
+ selects mst_unknown. It may also have to guess when it can't figure out
+ which is a better match between two types (mst_data versus mst_bss) for
+ example. Since the minimal symbol info is sometimes derived from the
+ BFD library's view of a file, we need to live with what information bfd
+ supplies. */
+
+ enum minimal_symbol_type
{
- /* 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;
- unsigned int is_const : 1;
- unsigned int is_volatile : 1;
- /* Index into that baseclass's virtual function table,
- minus 2; else if static: VOFFSET_STATIC; else: 0. */
- unsigned long voffset : 30;
-# 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;
+ mst_unknown = 0, /* Unknown type, the default */
+ mst_text, /* Generally executable instructions */
+ mst_data, /* Generally initialized data */
+ mst_bss, /* Generally uninitialized data */
+ mst_abs /* Generally absolute (nonrelocatable) */
+ } type;
+
};
+
+#define MSYMBOL_INFO(msymbol) (msymbol)->info
+#define MSYMBOL_TYPE(msymbol) (msymbol)->type
+
\f
/* All of the name-scope contours of the program
are represented by `struct block' objects.
struct block *block[1];
};
+#define BLOCKVECTOR_NBLOCKS(blocklist) (blocklist)->nblocks
+#define BLOCKVECTOR_BLOCK(blocklist,n) (blocklist)->block[n]
+
/* Special block numbers */
-#define GLOBAL_BLOCK 0
-#define STATIC_BLOCK 1
+
+#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;
+
+ CORE_ADDR startaddr;
+ CORE_ADDR endaddr;
+
/* The symbol that names this block,
if the block is the body of a function;
otherwise, zero.
(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
+
+ /* 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
+ This is because the compiler outputs the special blocks at the
very end, after the other blocks. */
+
struct block *superblock;
- /* A flag indicating whether or not the fucntion corresponding
+
+ /* A flag indicating whether or not the function 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];
};
-\f
-/* 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.
+#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
- VAR_NAMESPACE is the usual namespace.
- In C, this contains variables, function names, typedef names
- and enum type values.
+/* Nonzero if symbols of block BL should be sorted alphabetically. */
- 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.
+#define BLOCK_SHOULD_SORT(bl) ((bl)->nsyms >= 40)
- LABEL_NAMESPACE may be used for names of labels (for gotos);
- currently it is not used and labels are not recorded at all. */
+\f
+/* Represent one symbol name; a variable, constant, function or typedef. */
/* For a non-global symbol allocated statically,
the correct core address cannot be determined by the compiler.
This index number can be matched with the "desc" field of
an entry in the loader symbol table. */
+/* Different name spaces for symbols. Looking up a symbol specifies a
+ namespace and ignores symbol definitions in other name spaces. */
+
enum namespace
{
- UNDEF_NAMESPACE, VAR_NAMESPACE, STRUCT_NAMESPACE, LABEL_NAMESPACE,
+ /* UNDEF_NAMESPACE is used when a namespace has not been discovered or
+ none of the following apply. This usually indicates an error either
+ in the symbol information or in gdb's handling of symbols. */
+
+ UNDEF_NAMESPACE,
+
+ /* VAR_NAMESPACE is the usual namespace. In C, this contains variables,
+ function names, typedef names and enum type values. */
+
+ VAR_NAMESPACE,
+
+ /* 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. */
+
+ 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. */
+
+ 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. */
+ /* Not used; catches errors */
+
+ LOC_UNDEF,
+
+ /* Value is constant int SYMBOL_VALUE, host byteorder */
+
+ LOC_CONST,
+
+ /* Value is at fixed address SYMBOL_VALUE_ADDRESS */
+
+ LOC_STATIC,
+
+ /* Value is in register */
+
+ LOC_REGISTER,
+
+ /* Value is at spec'd offset in arglist */
+
+ LOC_ARG,
+
+ /* Value address is at spec'd offset in arglist. */
+
+ LOC_REF_ARG,
+
+ /* Value is at spec'd offset in register window */
+
+ LOC_REGPARM,
+
+ /* Value is at spec'd offset in stack frame */
+
+ LOC_LOCAL,
+
+ /* Value not used; definition in SYMBOL_TYPE. Symbols in the namespace
+ STRUCT_NAMESPACE all have this class. */
+
+ LOC_TYPEDEF,
+
+ /* Value is address SYMBOL_VALUE_ADDRESS in the code */
+
+ LOC_LABEL,
+
+ /* Value is address SYMBOL_VALUE_BLOCK of a `struct block'. Function names
+ have this class. */
+
+ LOC_BLOCK,
+
+ /* Value is a constant byte-sequence pointed to by SYMBOL_VALUE_ADDRESS, in
+ target byte order. */
+
+ LOC_CONST_BYTES,
+
+ /* 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. */
+
+ LOC_LOCAL_ARG
+
};
struct symbol
{
- /* Symbol name */
- char *name;
+
+ /* The general symbol info required for all types of symbols. */
+
+ struct general_symbol_info ginfo;
+
/* Name space code. */
+
enum namespace namespace;
+
/* Address class */
+
enum address_class class;
+
/* Data type of value */
+
struct type *type;
- /* Line number of definition. */
+ /* Line number of definition. FIXME: Should we really make the assumption
+ that nobody will try to debug files longer than 64K lines? What about
+ machine generated programs? */
+
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). */
+ /* Some symbols require an additional value to be recorded on a per-
+ symbol basis. Stash those values here. */
+
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 */
+ /* for OP_BASEREG in DWARF location specs */
+ struct
+ {
+ short regno_valid; /* 0 == regno invalid; !0 == regno valid */
+ short regno; /* base register number {0, 1, 2, ...} */
+ } basereg;
}
- value;
+ aux_value;
+
};
+#define SYMBOL_NAMESPACE(symbol) (symbol)->namespace
+#define SYMBOL_CLASS(symbol) (symbol)->class
+#define SYMBOL_TYPE(symbol) (symbol)->type
+#define SYMBOL_LINE(symbol) (symbol)->line
+#define SYMBOL_BASEREG(symbol) (symbol)->aux_value.basereg.regno
+
+/* This currently fails because some symbols are not being initialized
+ to zero on allocation, and no code is currently setting this value.
+ Basereg handling will probably change significantly in the next release.
+ FIXME -fnf */
+#if 0
+#define SYMBOL_BASEREG_VALID(symbol) (symbol)->aux_value.basereg.regno_valid
+#else
+#define SYMBOL_BASEREG_VALID(symbol) 0
+#endif
+
+\f
/* 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
+ on a 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;
+
+ /* The general symbol info required for all types of symbols. */
+
+ struct general_symbol_info ginfo;
+
/* 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;
+
};
+
+#define PSYMBOL_NAMESPACE(psymbol) (psymbol)->namespace
+#define PSYMBOL_CLASS(psymbol) (psymbol)->class
+
\f
-/* Source-file information.
- This describes the relation between source files and line numbers
- and addresses in the program text. */
+/* Source-file information. This describes the relation between source files,
+ ine numbers and addresses in the program text. */
struct sourcevector
{
struct linetable contents;
};
+/* How to relocate the symbols from each section in a symbol file.
+ Each struct contains an array of offsets.
+ The ordering and meaning of the offsets is file-type-dependent;
+ typically it is indexed by section numbers or symbol types or
+ something like that.
+
+ To give us flexibility in changing the internal representation
+ of these offsets, the ANOFFSET macro must be used to insert and
+ extract offset values in the struct. */
+
+struct section_offsets
+ {
+ CORE_ADDR offsets[1]; /* As many as needed. */
+ };
+
+#define ANOFFSET(secoff, whichone) (secoff->offsets[whichone])
+
/* 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. */
+
+ /* Table mapping core addresses to line numbers for this file.
+ Can be NULL if none. */
+
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;
+ 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. */
+ NULL if not yet known. */
+
char *fullname;
+ /* Object file from which this symbol information was read. */
+
+ struct objfile *objfile;
+
/* 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
+
};
+#define BLOCKVECTOR(symtab) (symtab)->blockvector
+#define LINETABLE(symtab) (symtab)->linetable
+
+\f
/* 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.
+ They are all chained on partial symtab lists.
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 about the object file from which symbols should be read. */
+
+ struct objfile *objfile;
+
+ /* Set of relocation offsets to apply to each section. */
+
+ struct section_offsets *section_offsets;
+
/* Range of text addresses covered by this file; texthigh is the
beginning of the next section. */
- CORE_ADDR textlow, texthigh;
+
+ CORE_ADDR textlow;
+ CORE_ADDR 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;
+
+ int globals_offset;
+ int 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
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;
+
+ int statics_offset;
+ int 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) ();
+
+ void (*read_symtab) PARAMS ((struct partial_symtab *));
+
/* Information that lets read_symtab() locate the part of the symbol table
that this psymtab corresponds to. This information is private to the
format-dependent symbol reading routines. For further detail examine
the various symbol reading modules. Should really be (void *) but is
(char *) as with other such gdb variables. (FIXME) */
+
char *read_symtab_private;
- /* Non-zero if the symtab corresponding to this psymtab has been
- readin */
+
+ /* 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) )
+#define PSYMTAB_TO_SYMTAB(pst) \
+ ((pst) -> symtab != NULL ? (pst) -> symtab : psymtab_to_symtab (pst))
-/* This is the list of struct symtab's that gdb considers current. */
+\f
+/* The virtual function table is now an array of structures which have the
+ form { int16 offset, delta; void *pfn; }.
-struct symtab *symtab_list;
+ 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. */
-/* This is the list of struct partial_symtab's that gdb may need to access */
+#define OPNAME_PREFIX_P(NAME) \
+ ((NAME)[0] == 'o' && (NAME)[1] == 'p' && (NAME)[2] == CPLUS_MARKER)
-struct partial_symtab *partial_symtab_list;
+#define VTBL_PREFIX_P(NAME) \
+ ((NAME)[3] == CPLUS_MARKER && !strncmp ((NAME), "_vt", 3))
+
+\f
+/* External variables and functions for the objects described above. */
/* This symtab variable specifies the current file for printing source lines */
-struct symtab *current_source_symtab;
+extern struct symtab *current_source_symtab;
/* This is the next line to print for listing source lines. */
-int current_source_line;
+extern int current_source_line;
-#define BLOCKLIST(symtab) (symtab)->blockvector
-#define BLOCKVECTOR(symtab) (symtab)->blockvector
+/* See the comment in symfile.c about how current_objfile is used. */
-#define LINELIST(symtab) (symtab)->linetable
-#define LINETABLE(symtab) (symtab)->linetable
-\f
-/* Macros normally used to access components of symbol table structures. */
+extern struct objfile *current_objfile;
-#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]
+extern struct symtab *
+lookup_symtab PARAMS ((char *));
-#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
+extern struct symbol *
+lookup_symbol PARAMS ((const char *, const struct block *,
+ const enum namespace, int *, struct symtab **));
-/* Nonzero if symbols of block BL should be sorted alphabetically. */
-#define BLOCK_SHOULD_SORT(bl) ((bl)->nsyms >= 40)
+extern struct symbol *
+lookup_block_symbol PARAMS ((const struct block *, const char *,
+ const enum namespace));
-#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 > 1)
-#define TYPE_FN_FIELD_STATIC_P(thistype, n) ((thistype)[n].voffset == VOFFSET_STATIC)
-#define TYPE_FN_FIELD_VOFFSET(thistype, n) ((thistype)[n].voffset-2)
-#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; }.
+extern struct type *
+lookup_struct PARAMS ((char *, struct block *));
- 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
+extern struct type *
+lookup_union PARAMS ((char *, struct block *));
-/* 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!
+extern struct type *
+lookup_enum PARAMS ((char *, struct block *));
- 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)
+extern struct symbol *
+block_function PARAMS ((struct block *));
-#define VTBL_PREFIX_P(NAME) ((NAME)[3] == CPLUS_MARKER \
- && !strncmp ((NAME), "_vt", 3))
-\f
-/* 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;
-extern struct type *builtin_type_long_double;
-extern struct type *builtin_type_complex;
-extern struct type *builtin_type_double_complex;
-/* 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. */
+extern struct symbol *
+find_pc_function PARAMS ((CORE_ADDR));
+
+extern int
+find_pc_partial_function PARAMS ((CORE_ADDR, char **, CORE_ADDR *));
+
+extern void
+clear_pc_function_cache PARAMS ((void));
+
+extern struct partial_symtab *
+lookup_partial_symtab PARAMS ((char *));
+
+extern struct partial_symtab *
+find_pc_psymtab PARAMS ((CORE_ADDR));
+
+extern struct symtab *
+find_pc_symtab PARAMS ((CORE_ADDR));
+
+extern struct partial_symbol *
+find_pc_psymbol PARAMS ((struct partial_symtab *, CORE_ADDR));
+
+extern int
+find_pc_line_pc_range PARAMS ((CORE_ADDR, CORE_ADDR *, CORE_ADDR *));
+
+extern int
+contained_in PARAMS ((struct block *, struct block *));
+
+extern void
+reread_symbols PARAMS ((void));
+
+/* Functions for dealing with the minimal symbol table, really a misc
+ address<->symbol mapping for things we don't have debug symbols for. */
+
+extern void
+prim_record_minimal_symbol PARAMS ((const char *, CORE_ADDR,
+ enum minimal_symbol_type));
+
+extern void
+prim_record_minimal_symbol_and_info PARAMS ((const char *, CORE_ADDR,
+ enum minimal_symbol_type,
+ char *info));
+
+extern struct minimal_symbol *
+lookup_minimal_symbol PARAMS ((const char *, struct objfile *));
+
+extern struct minimal_symbol *
+lookup_minimal_symbol_by_pc PARAMS ((CORE_ADDR));
+
+extern void
+init_minimal_symbol_collection PARAMS ((void));
+
+extern void
+discard_minimal_symbols PARAMS ((int));
+
+extern void
+install_minimal_symbols PARAMS ((struct objfile *));
struct symtab_and_line
{
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. */
+/* 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 ();
+extern struct symtab_and_line
+find_pc_line PARAMS ((CORE_ADDR, int));
/* 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". */
+extern CORE_ADDR
+find_line_pc PARAMS ((struct symtab *, int));
-struct symtabs_and_lines decode_line_spec ();
-struct symtabs_and_lines decode_line_spec_1 ();
-struct symtabs_and_lines decode_line_1 ();
+extern int
+find_line_pc_range PARAMS ((struct symtab *, int, CORE_ADDR *, CORE_ADDR *));
+
+extern void
+resolve_sal_pc PARAMS ((struct symtab_and_line *));
+
+/* Given a string, return the line specified by it. For commands like "list"
+ and "breakpoint". */
+
+extern struct symtabs_and_lines
+decode_line_spec PARAMS ((char *, int));
+
+extern struct symtabs_and_lines
+decode_line_spec_1 PARAMS ((char *, int));
+
+extern struct symtabs_and_lines
+decode_line_1 PARAMS ((char **, int, struct symtab *, int));
/* Symmisc.c */
-void free_symtab ();
+
+#if MAINTENANCE_CMDS
+
+void
+maintenance_print_symbols PARAMS ((char *, int));
+
+void
+maintenance_print_psymbols PARAMS ((char *, int));
+
+void
+maintenance_print_msymbols PARAMS ((char *, int));
+
+void
+maintenance_print_objfiles PARAMS ((char *, int));
+
+#endif
+
+extern void
+free_symtab PARAMS ((struct symtab *));
/* Symbol-reading stuff in symfile.c and solib.c. */
-struct symtab *psymtab_to_symtab ();
-void clear_solib ();
-void symbol_file_add ();
+
+extern struct symtab *
+psymtab_to_symtab PARAMS ((struct partial_symtab *));
+
+extern void
+clear_solib PARAMS ((void));
+
+extern struct objfile *
+symbol_file_add PARAMS ((char *, int, CORE_ADDR, int, int, int));
/* 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 ();
+extern int
+identify_source_line PARAMS ((struct symtab *, int, int));
+
+extern void
+print_source_lines PARAMS ((struct symtab *, int, int, int));
+
+extern void
+forget_cached_source_info PARAMS ((void));
+
+extern void
+select_source_symtab PARAMS ((struct symtab *));
+
+extern char **
+make_symbol_completion_list PARAMS ((char *));
+
+/* symtab.c */
+
+extern void
+clear_symtab_users_once PARAMS ((void));
+
+extern struct partial_symtab *
+find_main_psymtab PARAMS ((void));
+
+/* blockframe.c */
-/* The entry point of a file we are reading. */
-extern CORE_ADDR entry_point;
+extern struct blockvector *
+blockvector_for_pc PARAMS ((CORE_ADDR, int *));
-/* 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))
+/* symfile.c */
-#define MIN_OF_TYPE(t) \
- TYPE_UNSIGNED(t) ? UMIN_OF_SIZE(TYPE_LENGTH(t)) : MIN_OF_SIZE(TYPE_LENGTH(t))
+extern enum language
+deduce_language_from_filename PARAMS ((char *));
-#endif /* symtab.h not already included. */
+#endif /* !defined(SYMTAB_H) */
projects / deliverable / binutils-gdb.git / blobdiff