/* debug.h -- Describe generic debugging information.
Copyright 1995, 1996, 2002, 2003, 2005, 2007, 2009
Free Software Foundation, Inc.
Written by Ian Lance Taylor <ian@cygnus.com>.
This file is part of GNU Binutils.
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 3 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., 51 Franklin Street - Fifth Floor, Boston, MA
02110-1301, USA. */
#ifndef DEBUG_H
#define DEBUG_H
/* This header file describes a generic debugging information format.
We may eventually have readers which convert different formats into
this generic format, and writers which write it out. The initial
impetus for this was writing a converter from stabs to HP IEEE-695
debugging format. */
/* Different kinds of types. */
enum debug_type_kind
{
/* Not used. */
DEBUG_KIND_ILLEGAL,
/* Indirect via a pointer. */
DEBUG_KIND_INDIRECT,
/* Void. */
DEBUG_KIND_VOID,
/* Integer. */
DEBUG_KIND_INT,
/* Floating point. */
DEBUG_KIND_FLOAT,
/* Complex. */
DEBUG_KIND_COMPLEX,
/* Boolean. */
DEBUG_KIND_BOOL,
/* Struct. */
DEBUG_KIND_STRUCT,
/* Union. */
DEBUG_KIND_UNION,
/* Class. */
DEBUG_KIND_CLASS,
/* Union class (can this really happen?). */
DEBUG_KIND_UNION_CLASS,
/* Enumeration type. */
DEBUG_KIND_ENUM,
/* Pointer. */
DEBUG_KIND_POINTER,
/* Function. */
DEBUG_KIND_FUNCTION,
/* Reference. */
DEBUG_KIND_REFERENCE,
/* Range. */
DEBUG_KIND_RANGE,
/* Array. */
DEBUG_KIND_ARRAY,
/* Set. */
DEBUG_KIND_SET,
/* Based pointer. */
DEBUG_KIND_OFFSET,
/* Method. */
DEBUG_KIND_METHOD,
/* Const qualified type. */
DEBUG_KIND_CONST,
/* Volatile qualified type. */
DEBUG_KIND_VOLATILE,
/* Named type. */
DEBUG_KIND_NAMED,
/* Tagged type. */
DEBUG_KIND_TAGGED
};
/* Different kinds of variables. */
enum debug_var_kind
{
/* Not used. */
DEBUG_VAR_ILLEGAL,
/* A global variable. */
DEBUG_GLOBAL,
/* A static variable. */
DEBUG_STATIC,
/* A local static variable. */
DEBUG_LOCAL_STATIC,
/* A local variable. */
DEBUG_LOCAL,
/* A register variable. */
DEBUG_REGISTER
};
/* Different kinds of function parameters. */
enum debug_parm_kind
{
/* Not used. */
DEBUG_PARM_ILLEGAL,
/* A stack based parameter. */
DEBUG_PARM_STACK,
/* A register parameter. */
DEBUG_PARM_REG,
/* A stack based reference parameter. */
DEBUG_PARM_REFERENCE,
/* A register reference parameter. */
DEBUG_PARM_REF_REG
};
/* Different kinds of visibility. */
enum debug_visibility
{
/* A public field (e.g., a field in a C struct). */
DEBUG_VISIBILITY_PUBLIC,
/* A protected field. */
DEBUG_VISIBILITY_PROTECTED,
/* A private field. */
DEBUG_VISIBILITY_PRIVATE,
/* A field which should be ignored. */
DEBUG_VISIBILITY_IGNORE
};
/* A type. */
typedef struct debug_type_s *debug_type;
#define DEBUG_TYPE_NULL ((debug_type) NULL)
/* A field in a struct or union. */
typedef struct debug_field_s *debug_field;
#define DEBUG_FIELD_NULL ((debug_field) NULL)
/* A base class for an object. */
typedef struct debug_baseclass_s *debug_baseclass;
#define DEBUG_BASECLASS_NULL ((debug_baseclass) NULL)
/* A method of an object. */
typedef struct debug_method_s *debug_method;
#define DEBUG_METHOD_NULL ((debug_method) NULL)
/* The arguments to a method function of an object. These indicate
which method to run. */
typedef struct debug_method_variant_s *debug_method_variant;
#define DEBUG_METHOD_VARIANT_NULL ((debug_method_variant) NULL)
/* This structure is passed to debug_write. It holds function
pointers that debug_write will call based on the accumulated
debugging information. */
struct debug_write_fns
{
/* This is called at the start of each new compilation unit with the
name of the main file in the new unit. */
bfd_boolean (*start_compilation_unit) (void *, const char *);
/* This is called at the start of each source file within a
compilation unit, before outputting any global information for
that file. The argument is the name of the file. */
bfd_boolean (*start_source) (void *, const char *);
/* Each writer must keep a stack of types. */
/* Push an empty type onto the type stack. This type can appear if
there is a reference to a type which is never defined. */
bfd_boolean (*empty_type) (void *);
/* Push a void type onto the type stack. */
bfd_boolean (*void_type) (void *);
/* Push an integer type onto the type stack, given the size and
whether it is unsigned. */
bfd_boolean (*int_type) (void *, unsigned int, bfd_boolean);
/* Push a floating type onto the type stack, given the size. */
bfd_boolean (*float_type) (void *, unsigned int);
/* Push a complex type onto the type stack, given the size. */
bfd_boolean (*complex_type) (void *, unsigned int);
/* Push a bfd_boolean type onto the type stack, given the size. */
bfd_boolean (*bool_type) (void *, unsigned int);
/* Push an enum type onto the type stack, given the tag, a NULL
terminated array of names and the associated values. If there is
no tag, the tag argument will be NULL. If this is an undefined
enum, the names and values arguments will be NULL. */
bfd_boolean (*enum_type)
(void *, const char *, const char **, bfd_signed_vma *);
/* Pop the top type on the type stack, and push a pointer to that
type onto the type stack. */
bfd_boolean (*pointer_type) (void *);
/* Push a function type onto the type stack. The second argument
indicates the number of argument types that have been pushed onto
the stack. If the number of argument types is passed as -1, then
the argument types of the function are unknown, and no types have
been pushed onto the stack. The third argument is TRUE if the
function takes a variable number of arguments. The return type
of the function is pushed onto the type stack below the argument
types, if any. */
bfd_boolean (*function_type) (void *, int, bfd_boolean);
/* Pop the top type on the type stack, and push a reference to that
type onto the type stack. */
bfd_boolean (*reference_type) (void *);
/* Pop the top type on the type stack, and push a range of that type
with the given lower and upper bounds onto the type stack. */
bfd_boolean (*range_type) (void *, bfd_signed_vma, bfd_signed_vma);
/* Push an array type onto the type stack. The top type on the type
stack is the range, and the next type on the type stack is the
element type. These should be popped before the array type is
pushed. The arguments are the lower bound, the upper bound, and
whether the array is a string. */
bfd_boolean (*array_type)
(void *, bfd_signed_vma, bfd_signed_vma, bfd_boolean);
/* Pop the top type on the type stack, and push a set of that type
onto the type stack. The argument indicates whether this set is
a bitstring. */
bfd_boolean (*set_type) (void *, bfd_boolean);
/* Push an offset type onto the type stack. The top type on the
type stack is the target type, and the next type on the type
stack is the base type. These should be popped before the offset
type is pushed. */
bfd_boolean (*offset_type) (void *);
/* Push a method type onto the type stack. If the second argument
is TRUE, the top type on the stack is the class to which the
method belongs; otherwise, the class must be determined by the
class to which the method is attached. The third argument is the
number of argument types; these are pushed onto the type stack in
reverse order (the first type popped is the last argument to the
method). A value of -1 for the third argument means that no
argument information is available. The fourth argument is TRUE
if the function takes a variable number of arguments. The next
type on the type stack below the domain and the argument types is
the return type of the method. All these types must be popped,
and then the method type must be pushed. */
bfd_boolean (*method_type) (void *, bfd_boolean, int, bfd_boolean);
/* Pop the top type off the type stack, and push a const qualified
version of that type onto the type stack. */
bfd_boolean (*const_type) (void *);
/* Pop the top type off the type stack, and push a volatile
qualified version of that type onto the type stack. */
bfd_boolean (*volatile_type) (void *);
/* Start building a struct. This is followed by calls to the
struct_field function, and finished by a call to the
end_struct_type function. The second argument is the tag; this
will be NULL if there isn't one. If the second argument is NULL,
the third argument is a constant identifying this struct for use
with tag_type. The fourth argument is TRUE for a struct, FALSE
for a union. The fifth argument is the size. If this is an
undefined struct or union, the size will be 0 and struct_field
will not be called before end_struct_type is called. */
bfd_boolean (*start_struct_type)
(void *, const char *, unsigned int, bfd_boolean, unsigned int);
/* Add a field to the struct type currently being built. The type
of the field should be popped off the type stack. The arguments
are the name, the bit position, the bit size (may be zero if the
field is not packed), and the visibility. */
bfd_boolean (*struct_field)
(void *, const char *, bfd_vma, bfd_vma, enum debug_visibility);
/* Finish building a struct, and push it onto the type stack. */
bfd_boolean (*end_struct_type) (void *);
/* Start building a class. This is followed by calls to several
functions: struct_field, class_static_member, class_baseclass,
class_start_method, class_method_variant,
class_static_method_variant, and class_end_method. The class is
finished by a call to end_class_type. The first five arguments
are the same as for start_struct_type. The sixth argument is
TRUE if there is a virtual function table; if there is, the
seventh argument is TRUE if the virtual function table can be
found in the type itself, and is FALSE if the type of the object
holding the virtual function table should be popped from the type
stack. */
bfd_boolean (*start_class_type)
(void *, const char *, unsigned int, bfd_boolean, unsigned int,
bfd_boolean, bfd_boolean);
/* Add a static member to the class currently being built. The
arguments are the field name, the physical name, and the
visibility. The type must be popped off the type stack. */
bfd_boolean (*class_static_member)
(void *, const char *, const char *, enum debug_visibility);
/* Add a baseclass to the class currently being built. The type of
the baseclass must be popped off the type stack. The arguments
are the bit position, whether the class is virtual, and the
visibility. */
bfd_boolean (*class_baseclass)
(void *, bfd_vma, bfd_boolean, enum debug_visibility);
/* Start adding a method to the class currently being built. This
is followed by calls to class_method_variant and
class_static_method_variant to describe different variants of the
method which take different arguments. The method is finished
with a call to class_end_method. The argument is the method
name. */
bfd_boolean (*class_start_method) (void *, const char *);
/* Describe a variant to the class method currently being built.
The type of the variant must be popped off the type stack. The
second argument is the physical name of the function. The
following arguments are the visibility, whether the variant is
const, whether the variant is volatile, the offset in the virtual
function table, and whether the context is on the type stack
(below the variant type). */
bfd_boolean (*class_method_variant)
(void *, const char *, enum debug_visibility, bfd_boolean,
bfd_boolean, bfd_vma, bfd_boolean);
/* Describe a static variant to the class method currently being
built. The arguments are the same as for class_method_variant,
except that the last two arguments are omitted. The type of the
variant must be popped off the type stack. */
bfd_boolean (*class_static_method_variant)
(void *, const char *, enum debug_visibility, bfd_boolean,
bfd_boolean);
/* Finish describing a class method. */
bfd_boolean (*class_end_method) (void *);
/* Finish describing a class, and push it onto the type stack. */
bfd_boolean (*end_class_type) (void *);
/* Push a type on the stack which was given a name by an earlier
call to typdef. */
bfd_boolean (*typedef_type) (void *, const char *);
/* Push a tagged type on the stack which was defined earlier. If
the second argument is not NULL, the type was defined by a call
to tag. If the second argument is NULL, the type was defined by
a call to start_struct_type or start_class_type with a tag of
NULL and the number of the third argument. Either way, the
fourth argument is the tag kind. Note that this may be called
for a struct (class) being defined, in between the call to
start_struct_type (start_class_type) and the call to
end_struct_type (end_class_type). */
bfd_boolean (*tag_type)
(void *, const char *, unsigned int, enum debug_type_kind);
/* Pop the type stack, and typedef it to the given name. */
bfd_boolean (*typdef) (void *, const char *);
/* Pop the type stack, and declare it as a tagged struct or union or
enum or whatever. The tag passed down here is redundant, since
was also passed when enum_type, start_struct_type, or
start_class_type was called. */
bfd_boolean (*tag) (void *, const char *);
/* This is called to record a named integer constant. */
bfd_boolean (*int_constant) (void *, const char *, bfd_vma);
/* This is called to record a named floating point constant. */
bfd_boolean (*float_constant) (void *, const char *, double);
/* This is called to record a typed integer constant. The type is
popped off the type stack. */
bfd_boolean (*typed_constant) (void *, const char *, bfd_vma);
/* This is called to record a variable. The type is popped off the
type stack. */
bfd_boolean (*variable)
(void *, const char *, enum debug_var_kind, bfd_vma);
/* Start writing out a function. The return type must be popped off
the stack. The bfd_boolean is TRUE if the function is global. This
is followed by calls to function_parameter, followed by block
information. */
bfd_boolean (*start_function) (void *, const char *, bfd_boolean);
/* Record a function parameter for the current function. The type
must be popped off the stack. */
bfd_boolean (*function_parameter)
(void *, const char *, enum debug_parm_kind, bfd_vma);
/* Start writing out a block. There is at least one top level block
per function. Blocks may be nested. The argument is the
starting address of the block. */
bfd_boolean (*start_block) (void *, bfd_vma);
/* Finish writing out a block. The argument is the ending address
of the block. */
bfd_boolean (*end_block) (void *, bfd_vma);
/* Finish writing out a function. */
bfd_boolean (*end_function) (void *);
/* Record line number information for the current compilation unit. */
bfd_boolean (*lineno) (void *, const char *, unsigned long, bfd_vma);
};
/* Exported functions. */
/* The first argument to most of these functions is a handle. This
handle is returned by the debug_init function. The purpose of the
handle is to permit the debugging routines to not use static
variables, and hence to be reentrant. This would be useful for a
program which wanted to handle two executables simultaneously. */
/* Return a debugging handle. */
extern void *debug_init (void);
/* Set the source filename. This implicitly starts a new compilation
unit. */
extern bfd_boolean debug_set_filename (void *, const char *);
/* Change source files to the given file name. This is used for
include files in a single compilation unit. */
extern bfd_boolean debug_start_source (void *, const char *);
/* Record a function definition. This implicitly starts a function
block. The debug_type argument is the type of the return value.
The bfd_boolean indicates whether the function is globally visible.
The bfd_vma is the address of the start of the function. Currently
the parameter types are specified by calls to
debug_record_parameter. */
extern bfd_boolean debug_record_function
(void *, const char *, debug_type, bfd_boolean, bfd_vma);
/* Record a parameter for the current function. */
extern bfd_boolean debug_record_parameter
(void *, const char *, debug_type, enum debug_parm_kind, bfd_vma);
/* End a function definition. The argument is the address where the
function ends. */
extern bfd_boolean debug_end_function (void *, bfd_vma);
/* Start a block in a function. All local information will be
recorded in this block, until the matching call to debug_end_block.
debug_start_block and debug_end_block may be nested. The argument
is the address at which this block starts. */
extern bfd_boolean debug_start_block (void *, bfd_vma);
/* Finish a block in a function. This matches the call to
debug_start_block. The argument is the address at which this block
ends. */
extern bfd_boolean debug_end_block (void *, bfd_vma);
/* Associate a line number in the current source file with a given
address. */
extern bfd_boolean debug_record_line (void *, unsigned long, bfd_vma);
/* Start a named common block. This is a block of variables that may
move in memory. */
extern bfd_boolean debug_start_common_block (void *, const char *);
/* End a named common block. */
extern bfd_boolean debug_end_common_block (void *, const char *);
/* Record a named integer constant. */
extern bfd_boolean debug_record_int_const (void *, const char *, bfd_vma);
/* Record a named floating point constant. */
extern bfd_boolean debug_record_float_const (void *, const char *, double);
/* Record a typed constant with an integral value. */
extern bfd_boolean debug_record_typed_const
(void *, const char *, debug_type, bfd_vma);
/* Record a label. */
extern bfd_boolean debug_record_label
(void *, const char *, debug_type, bfd_vma);
/* Record a variable. */
extern bfd_boolean debug_record_variable
(void *, const char *, debug_type, enum debug_var_kind, bfd_vma);
/* Make an indirect type. The first argument is a pointer to the
location where the real type will be placed. The second argument
is the type tag, if there is one; this may be NULL; the only
purpose of this argument is so that debug_get_type_name can return
something useful. This function may be used when a type is
referenced before it is defined. */
extern debug_type debug_make_indirect_type
(void *, debug_type *, const char *);
/* Make a void type. */
extern debug_type debug_make_void_type (void *);
/* Make an integer type of a given size. The bfd_boolean argument is TRUE
if the integer is unsigned. */
extern debug_type debug_make_int_type (void *, unsigned int, bfd_boolean);
/* Make a floating point type of a given size. FIXME: On some
platforms, like an Alpha, you probably need to be able to specify
the format. */
extern debug_type debug_make_float_type (void *, unsigned int);
/* Make a boolean type of a given size. */
extern debug_type debug_make_bool_type (void *, unsigned int);
/* Make a complex type of a given size. */
extern debug_type debug_make_complex_type (void *, unsigned int);
/* Make a structure type. The second argument is TRUE for a struct,
FALSE for a union. The third argument is the size of the struct.
The fourth argument is a NULL terminated array of fields. */
extern debug_type debug_make_struct_type
(void *, bfd_boolean, bfd_vma, debug_field *);
/* Make an object type. The first three arguments after the handle
are the same as for debug_make_struct_type. The next arguments are
a NULL terminated array of base classes, a NULL terminated array of
methods, the type of the object holding the virtual function table
if it is not this object, and a bfd_boolean which is TRUE if this
object has its own virtual function table. */
extern debug_type debug_make_object_type
(void *, bfd_boolean, bfd_vma, debug_field *, debug_baseclass *,
debug_method *, debug_type, bfd_boolean);
/* Make an enumeration type. The arguments are a null terminated
array of strings, and an array of corresponding values. */
extern debug_type debug_make_enum_type
(void *, const char **, bfd_signed_vma *);
/* Make a pointer to a given type. */
extern debug_type debug_make_pointer_type (void *, debug_type);
/* Make a function type. The second argument is the return type. The
third argument is a NULL terminated array of argument types. The
fourth argument is TRUE if the function takes a variable number of
arguments. If the third argument is NULL, then the argument types
are unknown. */
extern debug_type debug_make_function_type
(void *, debug_type, debug_type *, bfd_boolean);
/* Make a reference to a given type. */
extern debug_type debug_make_reference_type (void *, debug_type);
/* Make a range of a given type from a lower to an upper bound. */
extern debug_type debug_make_range_type
(void *, debug_type, bfd_signed_vma, bfd_signed_vma);
/* Make an array type. The second argument is the type of an element
of the array. The third argument is the type of a range of the
array. The fourth and fifth argument are the lower and upper
bounds, respectively (if the bounds are not known, lower should be
0 and upper should be -1). The sixth argument is TRUE if this
array is actually a string, as in C. */
extern debug_type debug_make_array_type
(void *, debug_type, debug_type, bfd_signed_vma, bfd_signed_vma,
bfd_boolean);
/* Make a set of a given type. For example, a Pascal set type. The
bfd_boolean argument is TRUE if this set is actually a bitstring, as in
CHILL. */
extern debug_type debug_make_set_type (void *, debug_type, bfd_boolean);
/* Make a type for a pointer which is relative to an object. The
second argument is the type of the object to which the pointer is
relative. The third argument is the type that the pointer points
to. */
extern debug_type debug_make_offset_type (void *, debug_type, debug_type);
/* Make a type for a method function. The second argument is the
return type. The third argument is the domain. The fourth
argument is a NULL terminated array of argument types. The fifth
argument is TRUE if the function takes a variable number of
arguments, in which case the array of argument types indicates the
types of the first arguments. The domain and the argument array
may be NULL, in which case this is a stub method and that
information is not available. Stabs debugging uses this, and gets
the argument types from the mangled name. */
extern debug_type debug_make_method_type
(void *, debug_type, debug_type, debug_type *, bfd_boolean);
/* Make a const qualified version of a given type. */
extern debug_type debug_make_const_type (void *, debug_type);
/* Make a volatile qualified version of a given type. */
extern debug_type debug_make_volatile_type (void *, debug_type);
/* Make an undefined tagged type. For example, a struct which has
been mentioned, but not defined. */
extern debug_type debug_make_undefined_tagged_type
(void *, const char *, enum debug_type_kind);
/* Make a base class for an object. The second argument is the base
class type. The third argument is the bit position of this base
class in the object. The fourth argument is whether this is a
virtual class. The fifth argument is the visibility of the base
class. */
extern debug_baseclass debug_make_baseclass
(void *, debug_type, bfd_vma, bfd_boolean, enum debug_visibility);
/* Make a field for a struct. The second argument is the name. The
third argument is the type of the field. The fourth argument is
the bit position of the field. The fifth argument is the size of
the field (it may be zero). The sixth argument is the visibility
of the field. */
extern debug_field debug_make_field
(void *, const char *, debug_type, bfd_vma, bfd_vma, enum debug_visibility);
/* Make a static member of an object. The second argument is the
name. The third argument is the type of the member. The fourth
argument is the physical name of the member (i.e., the name as a
global variable). The fifth argument is the visibility of the
member. */
extern debug_field debug_make_static_member
(void *, const char *, debug_type, const char *, enum debug_visibility);
/* Make a method. The second argument is the name, and the third
argument is a NULL terminated array of method variants. Each
method variant is a method with this name but with different
argument types. */
extern debug_method debug_make_method
(void *, const char *, debug_method_variant *);
/* Make a method variant. The second argument is the physical name of
the function. The third argument is the type of the function,
probably constructed by debug_make_method_type. The fourth
argument is the visibility. The fifth argument is whether this is
a const function. The sixth argument is whether this is a volatile
function. The seventh argument is the index in the virtual
function table, if any. The eighth argument is the virtual
function context. */
extern debug_method_variant debug_make_method_variant
(void *, const char *, debug_type, enum debug_visibility, bfd_boolean,
bfd_boolean, bfd_vma, debug_type);
/* Make a static method argument. The arguments are the same as for
debug_make_method_variant, except that the last two are omitted
since a static method can not also be virtual. */
extern debug_method_variant debug_make_static_method_variant
(void *, const char *, debug_type, enum debug_visibility, bfd_boolean,
bfd_boolean);
/* Name a type. This returns a new type with an attached name. */
extern debug_type debug_name_type (void *, const char *, debug_type);
/* Give a tag to a type, such as a struct or union. This returns a
new type with an attached tag. */
extern debug_type debug_tag_type (void *, const char *, debug_type);
/* Record the size of a given type. */
extern bfd_boolean debug_record_type_size (void *, debug_type, unsigned int);
/* Find a named type. */
extern debug_type debug_find_named_type (void *, const char *);
/* Find a tagged type. */
extern debug_type debug_find_tagged_type
(void *, const char *, enum debug_type_kind);
/* Get the kind of a type. */
extern enum debug_type_kind debug_get_type_kind (void *, debug_type);
/* Get the name of a type. */
extern const char *debug_get_type_name (void *, debug_type);
/* Get the size of a type. */
extern bfd_vma debug_get_type_size (void *, debug_type);
/* Get the return type of a function or method type. */
extern debug_type debug_get_return_type (void *, debug_type);
/* Get the NULL terminated array of parameter types for a function or
method type (actually, parameter types are not currently stored for
function types). This may be used to determine whether a method
type is a stub method or not. The last argument points to a
bfd_boolean which is set to TRUE if the function takes a variable
number of arguments. */
extern const debug_type *debug_get_parameter_types
(void *, debug_type, bfd_boolean *);
/* Get the target type of a pointer or reference or const or volatile
type. */
extern debug_type debug_get_target_type (void *, debug_type);
/* Get the NULL terminated array of fields for a struct, union, or
class. */
extern const debug_field *debug_get_fields (void *, debug_type);
/* Get the type of a field. */
extern debug_type debug_get_field_type (void *, debug_field);
/* Get the name of a field. */
extern const char *debug_get_field_name (void *, debug_field);
/* Get the bit position of a field within the containing structure.
If the field is a static member, this will return (bfd_vma) -1. */
extern bfd_vma debug_get_field_bitpos (void *, debug_field);
/* Get the bit size of a field. If the field is a static member, this
will return (bfd_vma) -1. */
extern bfd_vma debug_get_field_bitsize (void *, debug_field);
/* Get the visibility of a field. */
extern enum debug_visibility debug_get_field_visibility (void *, debug_field);
/* Get the physical name of a field, if it is a static member. If the
field is not a static member, this will return NULL. */
extern const char *debug_get_field_physname (void *, debug_field);
/* Write out the recorded debugging information. This takes a set of
function pointers which are called to do the actual writing. The
first void * is the debugging handle. The second void * is a handle
which is passed to the functions. */
extern bfd_boolean debug_write
(void *, const struct debug_write_fns *, void *);
#endif /* DEBUG_H */