use in all scripts evaluated by the @code{python} command.
@findex gdb.PYTHONDIR
-@defvar PYTHONDIR
+@defvar gdb.PYTHONDIR
A string containing the python directory (@pxref{Python}).
@end defvar
@findex gdb.execute
-@defun execute command [from_tty] [to_string]
+@defun gdb.execute (command @r{[}, from_tty @r{[}, to_string@r{]]})
Evaluate @var{command}, a string, as a @value{GDBN} CLI command.
If a GDB exception happens while @var{command} runs, it is
translated as described in @ref{Exception Handling,,Exception Handling}.
@end defun
@findex gdb.breakpoints
-@defun breakpoints
+@defun gdb.breakpoints ()
Return a sequence holding all of @value{GDBN}'s breakpoints.
@xref{Breakpoints In Python}, for more information.
@end defun
@findex gdb.parameter
-@defun parameter parameter
+@defun gdb.parameter (parameter)
Return the value of a @value{GDBN} parameter. @var{parameter} is a
string naming the parameter to look up; @var{parameter} may contain
spaces if the parameter has a multi-part name. For example,
@end defun
@findex gdb.history
-@defun history number
+@defun gdb.history (number)
Return a value from @value{GDBN}'s value history (@pxref{Value
History}). @var{number} indicates which history element to return.
If @var{number} is negative, then @value{GDBN} will take its absolute value
@end defun
@findex gdb.parse_and_eval
-@defun parse_and_eval expression
+@defun gdb.parse_and_eval (expression)
Parse @var{expression} as an expression in the current language,
evaluate it, and return the result as a @code{gdb.Value}.
@var{expression} must be a string.
@end defun
@findex gdb.post_event
-@defun post_event event
+@defun gdb.post_event (event)
Put @var{event}, a callable object taking no arguments, into
@value{GDBN}'s internal event queue. This callable will be invoked at
some later point, during @value{GDBN}'s event processing. Events
@end defun
@findex gdb.write
-@defun write string @r{[}stream{]}
+@defun gdb.write (string @r{[}, stream{]})
Print a string to @value{GDBN}'s paginated output stream. The
optional @var{stream} determines the stream to print to. The default
stream is @value{GDBN}'s standard output stream. Possible stream
@table @code
@findex STDOUT
@findex gdb.STDOUT
-@item STDOUT
+@item gdb.STDOUT
@value{GDBN}'s standard output stream.
@findex STDERR
@findex gdb.STDERR
-@item STDERR
+@item gdb.STDERR
@value{GDBN}'s standard error stream.
@findex STDLOG
@findex gdb.STDLOG
-@item STDLOG
+@item gdb.STDLOG
@value{GDBN}'s log stream (@pxref{Logging Output}).
@end table
@end defun
@findex gdb.flush
-@defun flush
+@defun gdb.flush ()
Flush the buffer of a @value{GDBN} paginated stream so that the
contents are displayed immediately. @value{GDBN} will flush the
contents of a stream automatically when it encounters a newline in the
@table @code
@findex STDOUT
@findex gdb.STDOUT
-@item STDOUT
+@item gdb.STDOUT
@value{GDBN}'s standard output stream.
@findex STDERR
@findex gdb.STDERR
-@item STDERR
+@item gdb.STDERR
@value{GDBN}'s standard error stream.
@findex STDLOG
@findex gdb.STDLOG
-@item STDLOG
+@item gdb.STDLOG
@value{GDBN}'s log stream (@pxref{Logging Output}).
@end table
@end defun
@findex gdb.target_charset
-@defun target_charset
+@defun gdb.target_charset ()
Return the name of the current target character set (@pxref{Character
Sets}). This differs from @code{gdb.parameter('target-charset')} in
that @samp{auto} is never returned.
@end defun
@findex gdb.target_wide_charset
-@defun target_wide_charset
+@defun gdb.target_wide_charset ()
Return the name of the current target wide character set
(@pxref{Character Sets}). This differs from
@code{gdb.parameter('target-wide-charset')} in that @samp{auto} is
@end defun
@findex gdb.solib_name
-@defun solib_name address
+@defun gdb.solib_name (address)
Return the name of the shared library holding the given @var{address}
as a string, or @code{None}.
@end defun
@findex gdb.decode_line
-@defun decode_line @r{[}expression@r{]}
+@defun gdb.decode_line @r{[}expression@r{]}
Return locations of the line specified by @var{expression}, or of the
current line if no argument was given. This function returns a Python
tuple containing two elements. The first element contains a string
@code{break} or @code{edit} commands do (@pxref{Specify Location}).
@end defun
-@defop Operation {@value{GDBN}} prompt_hook current_prompt
+@defun gdb.prompt_hook (current_prompt)
@anchor{prompt_hook}
If @var{prompt_hook} is callable, @value{GDBN} will call the method
Some prompts cannot be substituted in @value{GDBN}. Secondary prompts
such as those used by readline for command input, and annotation
related prompts are prohibited from being changed.
-@end defop
+@end defun
@node Exception Handling
@subsubsection Exception Handling
The following attributes are provided:
@table @code
-@defivar Value address
+@defvar Value.address
If this object is addressable, this read-only attribute holds a
@code{gdb.Value} object representing the address. Otherwise,
this attribute holds @code{None}.
-@end defivar
+@end defvar
@cindex optimized out value in Python
-@defivar Value is_optimized_out
+@defvar Value.is_optimized_out
This read-only boolean attribute is true if the compiler optimized out
this value, thus it is not available for fetching from the inferior.
-@end defivar
+@end defvar
-@defivar Value type
+@defvar Value.type
The type of this @code{gdb.Value}. The value of this attribute is a
@code{gdb.Type} object (@pxref{Types In Python}).
-@end defivar
+@end defvar
-@defivar Value dynamic_type
+@defvar Value.dynamic_type
The dynamic type of this @code{gdb.Value}. This uses C@t{++} run-time
type information (@acronym{RTTI}) to determine the dynamic type of the
value. If this value is of class type, it will return the class in
that includes @acronym{RTTI} for the object in question. Otherwise,
it will just return the static type of the value as in @kbd{ptype foo}
(@pxref{Symbols, ptype}).
-@end defivar
+@end defvar
@end table
The following methods are provided:
@table @code
-@defmethod Value __init__ @var{val}
+@defun Value.__init__ (@var{val})
Many Python values can be converted directly to a @code{gdb.Value} via
this object initializer. Specifically:
Python}), then the lazy string's @code{value} method is called, and
its result is used.
@end table
-@end defmethod
+@end defun
-@defmethod Value cast type
+@defun Value.cast (type)
Return a new instance of @code{gdb.Value} that is the result of
casting this instance to the type described by @var{type}, which must
be a @code{gdb.Type} object. If the cast cannot be performed for some
reason, this method throws an exception.
-@end defmethod
+@end defun
-@defmethod Value dereference
+@defun Value.dereference ()
For pointer data types, this method returns a new @code{gdb.Value} object
whose contents is the object pointed to by the pointer. For example, if
@code{foo} is a C pointer to an @code{int}, declared in your C program as
The result @code{bar} will be a @code{gdb.Value} object holding the
value pointed to by @code{foo}.
-@end defmethod
+@end defun
-@defmethod Value dynamic_cast type
+@defun Value.dynamic_cast (type)
Like @code{Value.cast}, but works as if the C@t{++} @code{dynamic_cast}
operator were used. Consult a C@t{++} reference for details.
-@end defmethod
+@end defun
-@defmethod Value reinterpret_cast type
+@defun Value.reinterpret_cast (type)
Like @code{Value.cast}, but works as if the C@t{++} @code{reinterpret_cast}
operator were used. Consult a C@t{++} reference for details.
-@end defmethod
+@end defun
-@defmethod Value string @r{[}encoding@r{]} @r{[}errors@r{]} @r{[}length@r{]}
+@defun Value.string (@r{[}encoding@r{[}, errors@r{[}, length@r{]]]})
If this @code{gdb.Value} represents a string, then this method
converts the contents to a Python string. Otherwise, this method will
throw an exception.
If the optional @var{length} argument is given, the string will be
fetched and converted to the given length.
-@end defmethod
+@end defun
-@defmethod Value lazy_string @r{[}encoding@r{]} @r{[}length@r{]}
+@defun Value.lazy_string (@r{[}encoding @r{[}, length@r{]]})
If this @code{gdb.Value} represents a string, then this method
converts the contents to a @code{gdb.LazyString} (@pxref{Lazy Strings
In Python}). Otherwise, this method will throw an exception.
fetched and encoded to the length of characters specified. If
the @var{length} argument is not provided, the string will be fetched
and encoded until a null of appropriate width is found.
-@end defmethod
+@end defun
@end table
@node Types In Python
module:
@findex gdb.lookup_type
-@defun lookup_type name [block]
+@defun gdb.lookup_type (name @r{[}, block@r{]})
This function looks up a type by name. @var{name} is the name of the
type to look up. It must be a string.
An instance of @code{Type} has the following attributes:
@table @code
-@defivar Type code
+@defvar Type.code
The type code for this type. The type code will be one of the
@code{TYPE_CODE_} constants defined below.
-@end defivar
+@end defvar
-@defivar Type sizeof
+@defvar Type.sizeof
The size of this type, in target @code{char} units. Usually, a
target's @code{char} type will be an 8-bit byte. However, on some
unusual platforms, this type may have a different size.
-@end defivar
+@end defvar
-@defivar Type tag
+@defvar Type.tag
The tag name for this type. The tag name is the name after
@code{struct}, @code{union}, or @code{enum} in C and C@t{++}; not all
languages have this concept. If this type has no tag name, then
@code{None} is returned.
-@end defivar
+@end defvar
@end table
The following methods are provided:
@table @code
-@defmethod Type fields
+@defun Type.fields ()
For structure and union types, this method returns the fields. Range
types have two fields, the minimum and maximum values. Enum types
have one field per enum constant. Function and method types have one
The type of the field. This is usually an instance of @code{Type},
but it can be @code{None} in some situations.
@end table
-@end defmethod
+@end defun
-@defmethod Type array @var{n1} @r{[}@var{n2}@r{]}
+@defun Type.array (@var{n1} @r{[}, @var{n2}@r{]})
Return a new @code{gdb.Type} object which represents an array of this
type. If one argument is given, it is the inclusive upper bound of
the array; in this case the lower bound is zero. If two arguments are
given, the first argument is the lower bound of the array, and the
second argument is the upper bound of the array. An array's length
must not be negative, but the bounds can be.
-@end defmethod
+@end defun
-@defmethod Type const
+@defun Type.const ()
Return a new @code{gdb.Type} object which represents a
@code{const}-qualified variant of this type.
-@end defmethod
+@end defun
-@defmethod Type volatile
+@defun Type.volatile ()
Return a new @code{gdb.Type} object which represents a
@code{volatile}-qualified variant of this type.
-@end defmethod
+@end defun
-@defmethod Type unqualified
+@defun Type.unqualified ()
Return a new @code{gdb.Type} object which represents an unqualified
variant of this type. That is, the result is neither @code{const} nor
@code{volatile}.
-@end defmethod
+@end defun
-@defmethod Type range
+@defun Type.range ()
Return a Python @code{Tuple} object that contains two elements: the
low bound of the argument type and the high bound of that type. If
the type does not have a range, @value{GDBN} will raise a
@code{gdb.error} exception (@pxref{Exception Handling}).
-@end defmethod
+@end defun
-@defmethod Type reference
+@defun Type.reference ()
Return a new @code{gdb.Type} object which represents a reference to this
type.
-@end defmethod
+@end defun
-@defmethod Type pointer
+@defun Type.pointer ()
Return a new @code{gdb.Type} object which represents a pointer to this
type.
-@end defmethod
+@end defun
-@defmethod Type strip_typedefs
+@defun Type.strip_typedefs ()
Return a new @code{gdb.Type} that represents the real type,
after removing all layers of typedefs.
-@end defmethod
+@end defun
-@defmethod Type target
+@defun Type.target ()
Return a new @code{gdb.Type} object which represents the target type
of this type.
If the type does not have a target, this method will throw an
exception.
-@end defmethod
+@end defun
-@defmethod Type template_argument n [block]
+@defun Type.template_argument (n @r{[}, block@r{]})
If this @code{gdb.Type} is an instantiation of a template, this will
return a new @code{gdb.Type} which represents the type of the
@var{n}th template argument.
If @var{block} is given, then @var{name} is looked up in that scope.
Otherwise, it is searched for globally.
-@end defmethod
+@end defun
@end table
@table @code
@findex TYPE_CODE_PTR
@findex gdb.TYPE_CODE_PTR
-@item TYPE_CODE_PTR
+@item gdb.TYPE_CODE_PTR
The type is a pointer.
@findex TYPE_CODE_ARRAY
@findex gdb.TYPE_CODE_ARRAY
-@item TYPE_CODE_ARRAY
+@item gdb.TYPE_CODE_ARRAY
The type is an array.
@findex TYPE_CODE_STRUCT
@findex gdb.TYPE_CODE_STRUCT
-@item TYPE_CODE_STRUCT
+@item gdb.TYPE_CODE_STRUCT
The type is a structure.
@findex TYPE_CODE_UNION
@findex gdb.TYPE_CODE_UNION
-@item TYPE_CODE_UNION
+@item gdb.TYPE_CODE_UNION
The type is a union.
@findex TYPE_CODE_ENUM
@findex gdb.TYPE_CODE_ENUM
-@item TYPE_CODE_ENUM
+@item gdb.TYPE_CODE_ENUM
The type is an enum.
@findex TYPE_CODE_FLAGS
@findex gdb.TYPE_CODE_FLAGS
-@item TYPE_CODE_FLAGS
+@item gdb.TYPE_CODE_FLAGS
A bit flags type, used for things such as status registers.
@findex TYPE_CODE_FUNC
@findex gdb.TYPE_CODE_FUNC
-@item TYPE_CODE_FUNC
+@item gdb.TYPE_CODE_FUNC
The type is a function.
@findex TYPE_CODE_INT
@findex gdb.TYPE_CODE_INT
-@item TYPE_CODE_INT
+@item gdb.TYPE_CODE_INT
The type is an integer type.
@findex TYPE_CODE_FLT
@findex gdb.TYPE_CODE_FLT
-@item TYPE_CODE_FLT
+@item gdb.TYPE_CODE_FLT
A floating point type.
@findex TYPE_CODE_VOID
@findex gdb.TYPE_CODE_VOID
-@item TYPE_CODE_VOID
+@item gdb.TYPE_CODE_VOID
The special type @code{void}.
@findex TYPE_CODE_SET
@findex gdb.TYPE_CODE_SET
-@item TYPE_CODE_SET
+@item gdb.TYPE_CODE_SET
A Pascal set type.
@findex TYPE_CODE_RANGE
@findex gdb.TYPE_CODE_RANGE
-@item TYPE_CODE_RANGE
+@item gdb.TYPE_CODE_RANGE
A range type, that is, an integer type with bounds.
@findex TYPE_CODE_STRING
@findex gdb.TYPE_CODE_STRING
-@item TYPE_CODE_STRING
+@item gdb.TYPE_CODE_STRING
A string type. Note that this is only used for certain languages with
language-defined string types; C strings are not represented this way.
@findex TYPE_CODE_BITSTRING
@findex gdb.TYPE_CODE_BITSTRING
-@item TYPE_CODE_BITSTRING
+@item gdb.TYPE_CODE_BITSTRING
A string of bits.
@findex TYPE_CODE_ERROR
@findex gdb.TYPE_CODE_ERROR
-@item TYPE_CODE_ERROR
+@item gdb.TYPE_CODE_ERROR
An unknown or erroneous type.
@findex TYPE_CODE_METHOD
@findex gdb.TYPE_CODE_METHOD
-@item TYPE_CODE_METHOD
+@item gdb.TYPE_CODE_METHOD
A method type, as found in C@t{++} or Java.
@findex TYPE_CODE_METHODPTR
@findex gdb.TYPE_CODE_METHODPTR
-@item TYPE_CODE_METHODPTR
+@item gdb.TYPE_CODE_METHODPTR
A pointer-to-member-function.
@findex TYPE_CODE_MEMBERPTR
@findex gdb.TYPE_CODE_MEMBERPTR
-@item TYPE_CODE_MEMBERPTR
+@item gdb.TYPE_CODE_MEMBERPTR
A pointer-to-member.
@findex TYPE_CODE_REF
@findex gdb.TYPE_CODE_REF
-@item TYPE_CODE_REF
+@item gdb.TYPE_CODE_REF
A reference type.
@findex TYPE_CODE_CHAR
@findex gdb.TYPE_CODE_CHAR
-@item TYPE_CODE_CHAR
+@item gdb.TYPE_CODE_CHAR
A character type.
@findex TYPE_CODE_BOOL
@findex gdb.TYPE_CODE_BOOL
-@item TYPE_CODE_BOOL
+@item gdb.TYPE_CODE_BOOL
A boolean type.
@findex TYPE_CODE_COMPLEX
@findex gdb.TYPE_CODE_COMPLEX
-@item TYPE_CODE_COMPLEX
+@item gdb.TYPE_CODE_COMPLEX
A complex float type.
@findex TYPE_CODE_TYPEDEF
@findex gdb.TYPE_CODE_TYPEDEF
-@item TYPE_CODE_TYPEDEF
+@item gdb.TYPE_CODE_TYPEDEF
A typedef to some other type.
@findex TYPE_CODE_NAMESPACE
@findex gdb.TYPE_CODE_NAMESPACE
-@item TYPE_CODE_NAMESPACE
+@item gdb.TYPE_CODE_NAMESPACE
A C@t{++} namespace.
@findex TYPE_CODE_DECFLOAT
@findex gdb.TYPE_CODE_DECFLOAT
-@item TYPE_CODE_DECFLOAT
+@item gdb.TYPE_CODE_DECFLOAT
A decimal floating point type.
@findex TYPE_CODE_INTERNAL_FUNCTION
@findex gdb.TYPE_CODE_INTERNAL_FUNCTION
-@item TYPE_CODE_INTERNAL_FUNCTION
+@item gdb.TYPE_CODE_INTERNAL_FUNCTION
A function internal to @value{GDBN}. This is the type used to represent
convenience functions.
@end table
A pretty-printer is just an object that holds a value and implements a
specific interface, defined here.
-@defop Operation {pretty printer} children (self)
+@defun pretty_printer.children (self)
@value{GDBN} will call this method on a pretty-printer to compute the
children of the pretty-printer's value.
This method is optional. If it does not exist, @value{GDBN} will act
as though the value has no children.
-@end defop
+@end defun
-@defop Operation {pretty printer} display_hint (self)
+@defun pretty_printer.display_hint (self)
The CLI may call this method and use its result to change the
formatting of a value. The result will also be supplied to an MI
consumer as a @samp{displayhint} attribute of the variable being
adding quotation marks, possibly escaping some characters, respecting
@code{set print elements}, and the like.
@end table
-@end defop
+@end defun
-@defop Operation {pretty printer} to_string (self)
+@defun pretty_printer.to_string (self)
@value{GDBN} will call this method to display the string
representation of the value passed to the object's constructor.
are peformed in this method and nothing is printed.
If the result is not one of these types, an exception is raised.
-@end defop
+@end defun
@value{GDBN} provides a function which can be used to look up the
default pretty-printer for a @code{gdb.Value}:
@findex gdb.default_visualizer
-@defun default_visualizer value
+@defun gdb.default_visualizer (value)
This function takes a @code{gdb.Value} object as an argument. If a
pretty-printer for this value exists, then it is returned. If no such
printer exists, then this returns @code{None}.
The following inferior-related functions are available in the @code{gdb}
module:
-@defun inferiors
+@defun gdb.inferiors ()
Return a tuple containing all inferior objects.
@end defun
-@defun selected_inferior
+@defun gdb.selected_inferior ()
Return an object representing the current inferior.
@end defun
A @code{gdb.Inferior} object has the following attributes:
@table @code
-@defivar Inferior num
+@defvar Inferior.num
ID of inferior, as assigned by GDB.
-@end defivar
+@end defvar
-@defivar Inferior pid
+@defvar Inferior.pid
Process ID of the inferior, as assigned by the underlying operating
system.
-@end defivar
+@end defvar
-@defivar Inferior was_attached
+@defvar Inferior.was_attached
Boolean signaling whether the inferior was created using `attach', or
started by @value{GDBN} itself.
-@end defivar
+@end defvar
@end table
A @code{gdb.Inferior} object has the following methods:
@table @code
-@defmethod Inferior is_valid
+@defun Inferior.is_valid ()
Returns @code{True} if the @code{gdb.Inferior} object is valid,
@code{False} if not. A @code{gdb.Inferior} object will become invalid
if the inferior no longer exists within @value{GDBN}. All other
@code{gdb.Inferior} methods will throw an exception if it is invalid
at the time the method is called.
-@end defmethod
+@end defun
-@defmethod Inferior threads
+@defun Inferior.threads ()
This method returns a tuple holding all the threads which are valid
when it is called. If there are no valid threads, the method will
return an empty tuple.
-@end defmethod
+@end defun
@findex gdb.read_memory
-@defmethod Inferior read_memory address length
+@defun Inferior.read_memory (address, length)
Read @var{length} bytes of memory from the inferior, starting at
@var{address}. Returns a buffer object, which behaves much like an array
or a string. It can be modified and given to the @code{gdb.write_memory}
function.
-@end defmethod
+@end defun
@findex gdb.write_memory
-@defmethod Inferior write_memory address buffer @r{[}length@r{]}
+@defun Inferior.write_memory (address, buffer @r{[}, length@r{]})
Write the contents of @var{buffer} to the inferior, starting at
@var{address}. The @var{buffer} parameter must be a Python object
which supports the buffer protocol, i.e., a string, an array or the
object returned from @code{gdb.read_memory}. If given, @var{length}
determines the number of bytes from @var{buffer} to be written.
-@end defmethod
+@end defun
@findex gdb.search_memory
-@defmethod Inferior search_memory address length pattern
+@defun Inferior.search_memory (address, length, pattern)
Search a region of the inferior memory starting at @var{address} with
the given @var{length} using the search pattern supplied in
@var{pattern}. The @var{pattern} parameter must be a Python object
object returned from @code{gdb.read_memory}. Returns a Python @code{Long}
containing the address where the pattern was found, or @code{None} if
the pattern could not be found.
-@end defmethod
+@end defun
@end table
@node Events In Python
provides methods to register and unregister event handlers:
@table @code
-@defmethod EventRegistry connect object
+@defun EventRegistry.connect (object)
Add the given callable @var{object} to the registry. This object will be
called when an event corresponding to this registry occurs.
-@end defmethod
+@end defun
-@defmethod EventRegistry disconnect object
+@defun EventRegistry.disconnect (object)
Remove the given @var{object} from the registry. Once removed, the object
will no longer receive notifications of events.
-@end defmethod
+@end defun
@end table
Here is an example:
@code{gdb.ContinueEvent}.
@table @code
-@defivar ThreadEvent inferior_thread
+@defvar ThreadEvent.inferior_thread
In non-stop mode this attribute will be set to the specific thread which was
involved in the emitted event. Otherwise, it will be set to @code{None}.
-@end defivar
+@end defvar
@end table
Emits @code{gdb.ContinueEvent} which extends @code{gdb.ThreadEvent}.
will exist only in the case that the inferior exited with some
status.
@table @code
-@defivar ExitedEvent exit_code
+@defvar ExitedEvent.exit_code
An integer representing the exit code which the inferior has returned.
-@end defivar
+@end defvar
@end table
@item events.stop
signal. @code{gdb.SignalEvent} has the following attributes:
@table @code
-@defivar SignalEvent stop_signal
+@defvar SignalEvent.stop_signal
A string representing the signal received by the inferior. A list of possible
signal values can be obtained by running the command @code{info signals} in
the @value{GDBN} command prompt.
-@end defivar
+@end defvar
@end table
Also emits @code{gdb.BreakpointEvent} which extends @code{gdb.StopEvent}.
been hit, and has the following attributes:
@table @code
-@defivar BreakpointEvent breakpoints
+@defvar BreakpointEvent.breakpoints
A sequence containing references to all the breakpoints (type
@code{gdb.Breakpoint}) that were hit.
@xref{Breakpoints In Python}, for details of the @code{gdb.Breakpoint} object.
-@end defivar
-@defivar BreakpointEvent breakpoint
+@end defvar
+@defvar BreakpointEvent.breakpoint
A reference to the first breakpoint that was hit.
This function is maintained for backward compatibility and is now deprecated
-in favor of the @code{gdb.BreakpointEvent.breakpoints} function.
+in favor of the @code{gdb.BreakpointEvent.breakpoints} attribute.
+@end defvar
@end table
@end table
module:
@findex gdb.selected_thread
-@defun selected_thread
+@defun gdb.selected_thread ()
This function returns the thread object for the selected thread. If there
is no selected thread, this will return @code{None}.
@end defun
A @code{gdb.InferiorThread} object has the following attributes:
@table @code
-@defivar InferiorThread name
+@defvar InferiorThread.name
The name of the thread. If the user specified a name using
@code{thread name}, then this returns that name. Otherwise, if an
OS-supplied name is available, then it is returned. Otherwise, this
This attribute can be assigned to. The new value must be a string
object, which sets the new name, or @code{None}, which removes any
user-specified thread name.
-@end defivar
+@end defvar
-@defivar InferiorThread num
+@defvar InferiorThread.num
ID of the thread, as assigned by GDB.
-@end defivar
+@end defvar
-@defivar InferiorThread ptid
+@defvar InferiorThread.ptid
ID of the thread, as assigned by the operating system. This attribute is a
tuple containing three integers. The first is the Process ID (PID); the second
is the Lightweight Process ID (LWPID), and the third is the Thread ID (TID).
Either the LWPID or TID may be 0, which indicates that the operating system
does not use that identifier.
-@end defivar
+@end defvar
@end table
A @code{gdb.InferiorThread} object has the following methods:
@table @code
-@defmethod InferiorThread is_valid
+@defun InferiorThread.is_valid ()
Returns @code{True} if the @code{gdb.InferiorThread} object is valid,
@code{False} if not. A @code{gdb.InferiorThread} object will become
invalid if the thread exits, or the inferior that the thread belongs
is deleted. All other @code{gdb.InferiorThread} methods will throw an
exception if it is invalid at the time the method is called.
-@end defmethod
+@end defun
-@defmethod InferiorThread switch
+@defun InferiorThread.switch ()
This changes @value{GDBN}'s currently selected thread to the one represented
by this object.
-@end defmethod
+@end defun
-@defmethod InferiorThread is_stopped
+@defun InferiorThread.is_stopped ()
Return a Boolean indicating whether the thread is stopped.
-@end defmethod
+@end defun
-@defmethod InferiorThread is_running
+@defun InferiorThread.is_running ()
Return a Boolean indicating whether the thread is running.
-@end defmethod
+@end defun
-@defmethod InferiorThread is_exited
+@defun InferiorThread.is_exited ()
Return a Boolean indicating whether the thread is exited.
-@end defmethod
+@end defun
@end table
@node Commands In Python
command is implemented using an instance of the @code{gdb.Command}
class, most commonly using a subclass.
-@defmethod Command __init__ name @var{command_class} @r{[}@var{completer_class}@r{]} @r{[}@var{prefix}@r{]}
+@defun Command.__init__ (name, @var{command_class} @r{[}, var{completer_class} @r{[}, var{prefix}@r{]]})
The object initializer for @code{Command} registers the new command
with @value{GDBN}. This initializer is normally invoked from the
subclass' own @code{__init__} method.
documentation string for the command's class, if there is one. If no
documentation string is provided, the default value ``This command is
not documented.'' is used.
-@end defmethod
+@end defun
@cindex don't repeat Python command
-@defmethod Command dont_repeat
+@defun Command.dont_repeat ()
By default, a @value{GDBN} command is repeated when the user enters a
blank line at the command prompt. A command can suppress this
behavior by invoking the @code{dont_repeat} method. This is similar
to the user command @code{dont-repeat}, see @ref{Define, dont-repeat}.
-@end defmethod
+@end defun
-@defmethod Command invoke argument from_tty
+@defun Command.invoke (argument, from_tty)
This method is called by @value{GDBN} when this command is invoked.
@var{argument} is a string. It is the argument to the command, after
['1', '2 "3', '4 "5', "6 '7"]
@end smallexample
-@end defmethod
+@end defun
@cindex completion of Python commands
-@defmethod Command complete text word
+@defun Command.complete (text, word)
This method is called by @value{GDBN} when the user attempts
completion on this command. All forms of completion are handled by
this method, that is, the @key{TAB} and @key{M-?} key bindings
All other results are treated as though there were no available
completions.
@end itemize
-@end defmethod
+@end defun
When a new command is registered, it must be declared as a member of
some general class of commands. This is used to classify top-level
@table @code
@findex COMMAND_NONE
@findex gdb.COMMAND_NONE
-@item COMMAND_NONE
+@item gdb.COMMAND_NONE
The command does not belong to any particular class. A command in
this category will not be displayed in any of the help categories.
@findex COMMAND_RUNNING
@findex gdb.COMMAND_RUNNING
-@item COMMAND_RUNNING
+@item gdb.COMMAND_RUNNING
The command is related to running the inferior. For example,
@code{start}, @code{step}, and @code{continue} are in this category.
Type @kbd{help running} at the @value{GDBN} prompt to see a list of
@findex COMMAND_DATA
@findex gdb.COMMAND_DATA
-@item COMMAND_DATA
+@item gdb.COMMAND_DATA
The command is related to data or variables. For example,
@code{call}, @code{find}, and @code{print} are in this category. Type
@kbd{help data} at the @value{GDBN} prompt to see a list of commands
@findex COMMAND_STACK
@findex gdb.COMMAND_STACK
-@item COMMAND_STACK
+@item gdb.COMMAND_STACK
The command has to do with manipulation of the stack. For example,
@code{backtrace}, @code{frame}, and @code{return} are in this
category. Type @kbd{help stack} at the @value{GDBN} prompt to see a
@findex COMMAND_FILES
@findex gdb.COMMAND_FILES
-@item COMMAND_FILES
+@item gdb.COMMAND_FILES
This class is used for file-related commands. For example,
@code{file}, @code{list} and @code{section} are in this category.
Type @kbd{help files} at the @value{GDBN} prompt to see a list of
@findex COMMAND_SUPPORT
@findex gdb.COMMAND_SUPPORT
-@item COMMAND_SUPPORT
+@item gdb.COMMAND_SUPPORT
This should be used for ``support facilities'', generally meaning
things that are useful to the user when interacting with @value{GDBN},
but not related to the state of the inferior. For example,
@findex COMMAND_STATUS
@findex gdb.COMMAND_STATUS
-@item COMMAND_STATUS
+@item gdb.COMMAND_STATUS
The command is an @samp{info}-related command, that is, related to the
state of @value{GDBN} itself. For example, @code{info}, @code{macro},
and @code{show} are in this category. Type @kbd{help status} at the
@findex COMMAND_BREAKPOINTS
@findex gdb.COMMAND_BREAKPOINTS
-@item COMMAND_BREAKPOINTS
+@item gdb.COMMAND_BREAKPOINTS
The command has to do with breakpoints. For example, @code{break},
@code{clear}, and @code{delete} are in this category. Type @kbd{help
breakpoints} at the @value{GDBN} prompt to see a list of commands in
@findex COMMAND_TRACEPOINTS
@findex gdb.COMMAND_TRACEPOINTS
-@item COMMAND_TRACEPOINTS
+@item gdb.COMMAND_TRACEPOINTS
The command has to do with tracepoints. For example, @code{trace},
@code{actions}, and @code{tfind} are in this category. Type
@kbd{help tracepoints} at the @value{GDBN} prompt to see a list of
@findex COMMAND_OBSCURE
@findex gdb.COMMAND_OBSCURE
-@item COMMAND_OBSCURE
+@item gdb.COMMAND_OBSCURE
The command is only used in unusual circumstances, or is not of
general interest to users. For example, @code{checkpoint},
@code{fork}, and @code{stop} are in this category. Type @kbd{help
@findex COMMAND_MAINTENANCE
@findex gdb.COMMAND_MAINTENANCE
-@item COMMAND_MAINTENANCE
+@item gdb.COMMAND_MAINTENANCE
The command is only useful to @value{GDBN} maintainers. The
@code{maintenance} and @code{flushregs} commands are in this category.
Type @kbd{help internals} at the @value{GDBN} prompt to see a list of
@table @code
@findex COMPLETE_NONE
@findex gdb.COMPLETE_NONE
-@item COMPLETE_NONE
+@item gdb.COMPLETE_NONE
This constant means that no completion should be done.
@findex COMPLETE_FILENAME
@findex gdb.COMPLETE_FILENAME
-@item COMPLETE_FILENAME
+@item gdb.COMPLETE_FILENAME
This constant means that filename completion should be performed.
@findex COMPLETE_LOCATION
@findex gdb.COMPLETE_LOCATION
-@item COMPLETE_LOCATION
+@item gdb.COMPLETE_LOCATION
This constant means that location completion should be done.
@xref{Specify Location}.
@findex COMPLETE_COMMAND
@findex gdb.COMPLETE_COMMAND
-@item COMPLETE_COMMAND
+@item gdb.COMPLETE_COMMAND
This constant means that completion should examine @value{GDBN}
command names.
@findex COMPLETE_SYMBOL
@findex gdb.COMPLETE_SYMBOL
-@item COMPLETE_SYMBOL
+@item gdb.COMPLETE_SYMBOL
This constant means that completion should be done using symbol names
as the source.
@end table
behavior in @value{GDBN}. Similarly, you can define parameters that
can be used to influence behavior in custom Python scripts and commands.
-@defmethod Parameter __init__ name @var{command-class} @var{parameter-class} @r{[}@var{enum-sequence}@r{]}
+@defun Parameter.__init__ (name, @var{command-class}, @var{parameter-class} @r{[}, @var{enum-sequence}@r{]})
The object initializer for @code{Parameter} registers the new
parameter with @value{GDBN}. This initializer is normally invoked
from the subclass' own @code{__init__} method.
The help text for the new parameter is taken from the Python
documentation string for the parameter's class, if there is one. If
there is no documentation string, a default value is used.
-@end defmethod
+@end defun
-@defivar Parameter set_doc
+@defvar Parameter.set_doc
If this attribute exists, and is a string, then its value is used as
the help text for this parameter's @code{set} command. The value is
examined when @code{Parameter.__init__} is invoked; subsequent changes
have no effect.
-@end defivar
+@end defvar
-@defivar Parameter show_doc
+@defvar Parameter.show_doc
If this attribute exists, and is a string, then its value is used as
the help text for this parameter's @code{show} command. The value is
examined when @code{Parameter.__init__} is invoked; subsequent changes
have no effect.
-@end defivar
+@end defvar
-@defivar Parameter value
+@defvar Parameter.value
The @code{value} attribute holds the underlying value of the
parameter. It can be read and assigned to just as any other
attribute. @value{GDBN} does validation when assignments are made.
-@end defivar
+@end defvar
There are two methods that should be implemented in any
@code{Parameter} class. These are:
-@defop Operation {parameter} get_set_string self
+@defun Parameter.get_set_string (self)
@value{GDBN} will call this method when a @var{parameter}'s value has
been changed via the @code{set} API (for example, @kbd{set foo off}).
The @code{value} attribute has already been populated with the new
value and may be used in output. This method must return a string.
-@end defop
+@end defun
-@defop Operation {parameter} get_show_string self svalue
+@defun Parameter.get_show_string (self, svalue)
@value{GDBN} will call this method when a @var{parameter}'s
@code{show} API has been invoked (for example, @kbd{show foo}). The
argument @code{svalue} receives the string representation of the
current value. This method must return a string.
-@end defop
+@end defun
When a new parameter is defined, its type must be specified. The
available types are represented by constants defined in the @code{gdb}
@table @code
@findex PARAM_BOOLEAN
@findex gdb.PARAM_BOOLEAN
-@item PARAM_BOOLEAN
+@item gdb.PARAM_BOOLEAN
The value is a plain boolean. The Python boolean values, @code{True}
and @code{False} are the only valid values.
@findex PARAM_AUTO_BOOLEAN
@findex gdb.PARAM_AUTO_BOOLEAN
-@item PARAM_AUTO_BOOLEAN
+@item gdb.PARAM_AUTO_BOOLEAN
The value has three possible states: true, false, and @samp{auto}. In
Python, true and false are represented using boolean constants, and
@samp{auto} is represented using @code{None}.
@findex PARAM_UINTEGER
@findex gdb.PARAM_UINTEGER
-@item PARAM_UINTEGER
+@item gdb.PARAM_UINTEGER
The value is an unsigned integer. The value of 0 should be
interpreted to mean ``unlimited''.
@findex PARAM_INTEGER
@findex gdb.PARAM_INTEGER
-@item PARAM_INTEGER
+@item gdb.PARAM_INTEGER
The value is a signed integer. The value of 0 should be interpreted
to mean ``unlimited''.
@findex PARAM_STRING
@findex gdb.PARAM_STRING
-@item PARAM_STRING
+@item gdb.PARAM_STRING
The value is a string. When the user modifies the string, any escape
sequences, such as @samp{\t}, @samp{\f}, and octal escapes, are
translated into corresponding characters and encoded into the current
@findex PARAM_STRING_NOESCAPE
@findex gdb.PARAM_STRING_NOESCAPE
-@item PARAM_STRING_NOESCAPE
+@item gdb.PARAM_STRING_NOESCAPE
The value is a string. When the user modifies the string, escapes are
passed through untranslated.
@findex PARAM_OPTIONAL_FILENAME
@findex gdb.PARAM_OPTIONAL_FILENAME
-@item PARAM_OPTIONAL_FILENAME
+@item gdb.PARAM_OPTIONAL_FILENAME
The value is a either a filename (a string), or @code{None}.
@findex PARAM_FILENAME
@findex gdb.PARAM_FILENAME
-@item PARAM_FILENAME
+@item gdb.PARAM_FILENAME
The value is a filename. This is just like
@code{PARAM_STRING_NOESCAPE}, but uses file names for completion.
@findex PARAM_ZINTEGER
@findex gdb.PARAM_ZINTEGER
-@item PARAM_ZINTEGER
+@item gdb.PARAM_ZINTEGER
The value is an integer. This is like @code{PARAM_INTEGER}, except 0
is interpreted as itself.
@findex PARAM_ENUM
@findex gdb.PARAM_ENUM
-@item PARAM_ENUM
+@item gdb.PARAM_ENUM
The value is a string, which must be one of a collection string
constants provided when the parameter is created.
@end table
in Python. A convenience function is an instance of a subclass of the
class @code{gdb.Function}.
-@defmethod Function __init__ name
+@defun Function.__init__ (name)
The initializer for @code{Function} registers the new function with
@value{GDBN}. The argument @var{name} is the name of the function,
a string. The function will be visible to the user as a convenience
The documentation for the new function is taken from the documentation
string for the new class.
-@end defmethod
+@end defun
-@defmethod Function invoke @var{*args}
+@defun Function.invoke (@var{*args})
When a convenience function is evaluated, its arguments are converted
to instances of @code{gdb.Value}, and then the function's
@code{invoke} method is called. Note that @value{GDBN} does not
The return value of this method is used as its value in the enclosing
expression. If an ordinary Python value is returned, it is converted
to a @code{gdb.Value} following the usual rules.
-@end defmethod
+@end defun
The following code snippet shows how a trivial convenience function can
be implemented in Python:
@code{gdb} module:
@findex gdb.current_progspace
-@defun current_progspace
+@defun gdb.current_progspace ()
This function returns the program space of the currently selected inferior.
@xref{Inferiors and Programs}.
@end defun
@findex gdb.progspaces
-@defun progspaces
+@defun gdb.progspaces ()
Return a sequence of all the progspaces currently known to @value{GDBN}.
@end defun
Each progspace is represented by an instance of the @code{gdb.Progspace}
class.
-@defivar Progspace filename
+@defvar Progspace.filename
The file name of the progspace as a string.
-@end defivar
+@end defvar
-@defivar Progspace pretty_printers
+@defvar Progspace.pretty_printers
The @code{pretty_printers} attribute is a list of functions. It is
used to look up pretty-printers. A @code{Value} is passed to each
function in order; if the function returns @code{None}, then the
search continues. Otherwise, the return value should be an object
which is used to format the value. @xref{Pretty Printing API}, for more
information.
-@end defivar
+@end defvar
@node Objfiles In Python
@subsubsection Objfiles In Python
@code{gdb} module:
@findex gdb.current_objfile
-@defun current_objfile
+@defun gdb.current_objfile ()
When auto-loading a Python script (@pxref{Auto-loading}), @value{GDBN}
sets the ``current objfile'' to the corresponding objfile. This
function returns the current objfile. If there is no current objfile,
@end defun
@findex gdb.objfiles
-@defun objfiles
+@defun gdb.objfiles ()
Return a sequence of all the objfiles current known to @value{GDBN}.
@xref{Objfiles In Python}.
@end defun
Each objfile is represented by an instance of the @code{gdb.Objfile}
class.
-@defivar Objfile filename
+@defvar Objfile.filename
The file name of the objfile as a string.
-@end defivar
+@end defvar
-@defivar Objfile pretty_printers
+@defvar Objfile.pretty_printers
The @code{pretty_printers} attribute is a list of functions. It is
used to look up pretty-printers. A @code{Value} is passed to each
function in order; if the function returns @code{None}, then the
search continues. Otherwise, the return value should be an object
which is used to format the value. @xref{Pretty Printing API}, for more
information.
-@end defivar
+@end defvar
A @code{gdb.Objfile} object has the following methods:
-@defmethod Objfile is_valid
+@defun Objfile.is_valid ()
Returns @code{True} if the @code{gdb.Objfile} object is valid,
@code{False} if not. A @code{gdb.Objfile} object can become invalid
if the object file it refers to is not loaded in @value{GDBN} any
longer. All other @code{gdb.Objfile} methods will throw an exception
if it is invalid at the time the method is called.
-@end defmethod
+@end defun
@node Frames In Python
@subsubsection Accessing inferior stack frames from Python.
The following frame-related functions are available in the @code{gdb} module:
@findex gdb.selected_frame
-@defun selected_frame
+@defun gdb.selected_frame ()
Return the selected frame object. (@pxref{Selection,,Selecting a Frame}).
@end defun
@findex gdb.newest_frame
-@defun newest_frame
+@defun gdb.newest_frame ()
Return the newest frame object for the selected thread.
@end defun
-@defun frame_stop_reason_string reason
+@defun gdb.frame_stop_reason_string (reason)
Return a string explaining the reason why @value{GDBN} stopped unwinding
frames, as expressed by the given @var{reason} code (an integer, see the
@code{unwind_stop_reason} method further down in this section).
A @code{gdb.Frame} object has the following methods:
@table @code
-@defmethod Frame is_valid
+@defun Frame.is_valid ()
Returns true if the @code{gdb.Frame} object is valid, false if not.
A frame object can become invalid if the frame it refers to doesn't
exist anymore in the inferior. All @code{gdb.Frame} methods will throw
an exception if it is invalid at the time the method is called.
-@end defmethod
+@end defun
-@defmethod Frame name
+@defun Frame.name ()
Returns the function name of the frame, or @code{None} if it can't be
obtained.
-@end defmethod
+@end defun
-@defmethod Frame type
+@defun Frame.type ()
Returns the type of the frame. The value can be one of:
@table @code
@item gdb.NORMAL_FRAME
This is like @code{gdb.NORMAL_FRAME}, but it is only used for the
newest frame.
@end table
-@end defmethod
+@end defun
-@defmethod Frame unwind_stop_reason
+@defun Frame.unwind_stop_reason ()
Return an integer representing the reason why it's not possible to find
more frames toward the outermost frame. Use
@code{gdb.frame_stop_reason_string} to convert the value returned by this
function to a string.
-@end defmethod
+@end defun
-@defmethod Frame pc
+@defun Frame.pc ()
Returns the frame's resume address.
-@end defmethod
+@end defun
-@defmethod Frame block
+@defun Frame.block ()
Return the frame's code block. @xref{Blocks In Python}.
-@end defmethod
+@end defun
-@defmethod Frame function
+@defun Frame.function ()
Return the symbol for the function corresponding to this frame.
@xref{Symbols In Python}.
-@end defmethod
+@end defun
-@defmethod Frame older
+@defun Frame.older ()
Return the frame that called this frame.
-@end defmethod
+@end defun
-@defmethod Frame newer
+@defun Frame.newer ()
Return the frame called by this frame.
-@end defmethod
+@end defun
-@defmethod Frame find_sal
+@defun Frame.find_sal ()
Return the frame's symtab and line object.
@xref{Symbol Tables In Python}.
-@end defmethod
+@end defun
-@defmethod Frame read_var variable @r{[}block@r{]}
+@defun Frame.read_var (variable @r{[}, block@r{]})
Return the value of @var{variable} in this frame. If the optional
argument @var{block} is provided, search for the variable from that
block; otherwise start at the frame's current block (which is
determined by the frame's current program counter). @var{variable}
must be a string or a @code{gdb.Symbol} object. @var{block} must be a
@code{gdb.Block} object.
-@end defmethod
+@end defun
-@defmethod Frame select
+@defun Frame.select ()
Set this frame to be the selected frame. @xref{Stack, ,Examining the
Stack}.
-@end defmethod
+@end defun
@end table
@node Blocks In Python
module:
@findex gdb.block_for_pc
-@defun block_for_pc pc
+@defun gdb.block_for_pc (pc)
Return the @code{gdb.Block} containing the given @var{pc} value. If the
block cannot be found for the @var{pc} value specified, the function
will return @code{None}.
A @code{gdb.Block} object has the following methods:
@table @code
-@defmethod Block is_valid
+@defun Block.is_valid ()
Returns @code{True} if the @code{gdb.Block} object is valid,
@code{False} if not. A block object can become invalid if the block it
refers to doesn't exist anymore in the inferior. All other
the time the method is called. This method is also made available to
the Python iterator object that @code{gdb.Block} provides in an iteration
context and via the Python @code{iter} built-in function.
-@end defmethod
+@end defun
@end table
A @code{gdb.Block} object has the following attributes:
@table @code
-@defivar Block start
+@defvar Block.start
The start address of the block. This attribute is not writable.
-@end defivar
+@end defvar
-@defivar Block end
+@defvar Block.end
The end address of the block. This attribute is not writable.
-@end defivar
+@end defvar
-@defivar Block function
+@defvar Block.function
The name of the block represented as a @code{gdb.Symbol}. If the
block is not named, then this attribute holds @code{None}. This
attribute is not writable.
-@end defivar
+@end defvar
-@defivar Block superblock
+@defvar Block.superblock
The block containing this block. If this parent block does not exist,
this attribute holds @code{None}. This attribute is not writable.
-@end defivar
+@end defvar
@end table
@node Symbols In Python
module:
@findex gdb.lookup_symbol
-@defun lookup_symbol name @r{[}block@r{]} @r{[}domain@r{]}
+@defun gdb.lookup_symbol (name @r{[}, block @r{[}, domain@r{]]})
This function searches for a symbol by name. The search scope can be
restricted to the parameters defined in the optional domain and block
arguments.
@end defun
@findex gdb.lookup_global_symbol
-@defun lookup_global_symbol name @r{[}domain@r{]}
+@defun gdb.lookup_global_symbol (name @r{[}, domain@r{]})
This function searches for a global symbol by name.
The search scope can be restricted to by the domain argument.
A @code{gdb.Symbol} object has the following attributes:
@table @code
-@defivar Symbol type
+@defvar Symbol.type
The type of the symbol or @code{None} if no type is recorded.
This attribute is represented as a @code{gdb.Type} object.
@xref{Types In Python}. This attribute is not writable.
-@end defivar
+@end defvar
-@defivar Symbol symtab
+@defvar Symbol.symtab
The symbol table in which the symbol appears. This attribute is
represented as a @code{gdb.Symtab} object. @xref{Symbol Tables In
Python}. This attribute is not writable.
-@end defivar
+@end defvar
-@defivar Symbol name
+@defvar Symbol.name
The name of the symbol as a string. This attribute is not writable.
-@end defivar
+@end defvar
-@defivar Symbol linkage_name
+@defvar Symbol.linkage_name
The name of the symbol, as used by the linker (i.e., may be mangled).
This attribute is not writable.
-@end defivar
+@end defvar
-@defivar Symbol print_name
+@defvar Symbol.print_name
The name of the symbol in a form suitable for output. This is either
@code{name} or @code{linkage_name}, depending on whether the user
asked @value{GDBN} to display demangled or mangled names.
-@end defivar
+@end defvar
-@defivar Symbol addr_class
+@defvar Symbol.addr_class
The address class of the symbol. This classifies how to find the value
of a symbol. Each address class is a constant defined in the
@code{gdb} module and described later in this chapter.
-@end defivar
+@end defvar
-@defivar Symbol is_argument
+@defvar Symbol.is_argument
@code{True} if the symbol is an argument of a function.
-@end defivar
+@end defvar
-@defivar Symbol is_constant
+@defvar Symbol.is_constant
@code{True} if the symbol is a constant.
-@end defivar
+@end defvar
-@defivar Symbol is_function
+@defvar Symbol.is_function
@code{True} if the symbol is a function or a method.
-@end defivar
+@end defvar
-@defivar Symbol is_variable
+@defvar Symbol.is_variable
@code{True} if the symbol is a variable.
-@end defivar
+@end defvar
@end table
A @code{gdb.Symbol} object has the following methods:
@table @code
-@defmethod Symbol is_valid
+@defun Symbol.is_valid ()
Returns @code{True} if the @code{gdb.Symbol} object is valid,
@code{False} if not. A @code{gdb.Symbol} object can become invalid if
the symbol it refers to does not exist in @value{GDBN} any longer.
All other @code{gdb.Symbol} methods will throw an exception if it is
invalid at the time the method is called.
-@end defmethod
+@end defun
@end table
The available domain categories in @code{gdb.Symbol} are represented
@table @code
@findex SYMBOL_UNDEF_DOMAIN
@findex gdb.SYMBOL_UNDEF_DOMAIN
-@item SYMBOL_UNDEF_DOMAIN
+@item gdb.SYMBOL_UNDEF_DOMAIN
This is used when a domain has not been discovered or none of the
following domains apply. This usually indicates an error either
in the symbol information or in @value{GDBN}'s handling of symbols.
@findex SYMBOL_VAR_DOMAIN
@findex gdb.SYMBOL_VAR_DOMAIN
-@item SYMBOL_VAR_DOMAIN
+@item gdb.SYMBOL_VAR_DOMAIN
This domain contains variables, function names, typedef names and enum
type values.
@findex SYMBOL_STRUCT_DOMAIN
@findex gdb.SYMBOL_STRUCT_DOMAIN
-@item SYMBOL_STRUCT_DOMAIN
+@item gdb.SYMBOL_STRUCT_DOMAIN
This domain holds struct, union and enum type names.
@findex SYMBOL_LABEL_DOMAIN
@findex gdb.SYMBOL_LABEL_DOMAIN
-@item SYMBOL_LABEL_DOMAIN
+@item gdb.SYMBOL_LABEL_DOMAIN
This domain contains names of labels (for gotos).
@findex SYMBOL_VARIABLES_DOMAIN
@findex gdb.SYMBOL_VARIABLES_DOMAIN
-@item SYMBOL_VARIABLES_DOMAIN
+@item gdb.SYMBOL_VARIABLES_DOMAIN
This domain holds a subset of the @code{SYMBOLS_VAR_DOMAIN}; it
contains everything minus functions and types.
@findex SYMBOL_FUNCTIONS_DOMAIN
@findex gdb.SYMBOL_FUNCTIONS_DOMAIN
-@item SYMBOL_FUNCTION_DOMAIN
+@item gdb.SYMBOL_FUNCTION_DOMAIN
This domain contains all functions.
@findex SYMBOL_TYPES_DOMAIN
@findex gdb.SYMBOL_TYPES_DOMAIN
-@item SYMBOL_TYPES_DOMAIN
+@item gdb.SYMBOL_TYPES_DOMAIN
This domain contains all types.
@end table
@table @code
@findex SYMBOL_LOC_UNDEF
@findex gdb.SYMBOL_LOC_UNDEF
-@item SYMBOL_LOC_UNDEF
+@item gdb.SYMBOL_LOC_UNDEF
If this is returned by address class, it indicates an error either in
the symbol information or in @value{GDBN}'s handling of symbols.
@findex SYMBOL_LOC_CONST
@findex gdb.SYMBOL_LOC_CONST
-@item SYMBOL_LOC_CONST
+@item gdb.SYMBOL_LOC_CONST
Value is constant int.
@findex SYMBOL_LOC_STATIC
@findex gdb.SYMBOL_LOC_STATIC
-@item SYMBOL_LOC_STATIC
+@item gdb.SYMBOL_LOC_STATIC
Value is at a fixed address.
@findex SYMBOL_LOC_REGISTER
@findex gdb.SYMBOL_LOC_REGISTER
-@item SYMBOL_LOC_REGISTER
+@item gdb.SYMBOL_LOC_REGISTER
Value is in a register.
@findex SYMBOL_LOC_ARG
@findex gdb.SYMBOL_LOC_ARG
-@item SYMBOL_LOC_ARG
+@item gdb.SYMBOL_LOC_ARG
Value is an argument. This value is at the offset stored within the
symbol inside the frame's argument list.
@findex SYMBOL_LOC_REF_ARG
@findex gdb.SYMBOL_LOC_REF_ARG
-@item SYMBOL_LOC_REF_ARG
+@item gdb.SYMBOL_LOC_REF_ARG
Value address is stored in the frame's argument list. Just like
@code{LOC_ARG} except that the value's address is stored at the
offset, not the value itself.
@findex SYMBOL_LOC_REGPARM_ADDR
@findex gdb.SYMBOL_LOC_REGPARM_ADDR
-@item SYMBOL_LOC_REGPARM_ADDR
+@item gdb.SYMBOL_LOC_REGPARM_ADDR
Value is a specified register. Just like @code{LOC_REGISTER} except
the register holds the address of the argument instead of the argument
itself.
@findex SYMBOL_LOC_LOCAL
@findex gdb.SYMBOL_LOC_LOCAL
-@item SYMBOL_LOC_LOCAL
+@item gdb.SYMBOL_LOC_LOCAL
Value is a local variable.
@findex SYMBOL_LOC_TYPEDEF
@findex gdb.SYMBOL_LOC_TYPEDEF
-@item SYMBOL_LOC_TYPEDEF
+@item gdb.SYMBOL_LOC_TYPEDEF
Value not used. Symbols in the domain @code{SYMBOL_STRUCT_DOMAIN} all
have this class.
@findex SYMBOL_LOC_BLOCK
@findex gdb.SYMBOL_LOC_BLOCK
-@item SYMBOL_LOC_BLOCK
+@item gdb.SYMBOL_LOC_BLOCK
Value is a block.
@findex SYMBOL_LOC_CONST_BYTES
@findex gdb.SYMBOL_LOC_CONST_BYTES
-@item SYMBOL_LOC_CONST_BYTES
+@item gdb.SYMBOL_LOC_CONST_BYTES
Value is a byte-sequence.
@findex SYMBOL_LOC_UNRESOLVED
@findex gdb.SYMBOL_LOC_UNRESOLVED
-@item SYMBOL_LOC_UNRESOLVED
+@item gdb.SYMBOL_LOC_UNRESOLVED
Value is at a fixed address, but the address of the variable has to be
determined from the minimal symbol table whenever the variable is
referenced.
@findex SYMBOL_LOC_OPTIMIZED_OUT
@findex gdb.SYMBOL_LOC_OPTIMIZED_OUT
-@item SYMBOL_LOC_OPTIMIZED_OUT
+@item gdb.SYMBOL_LOC_OPTIMIZED_OUT
The value does not actually exist in the program.
@findex SYMBOL_LOC_COMPUTED
@findex gdb.SYMBOL_LOC_COMPUTED
-@item SYMBOL_LOC_COMPUTED
+@item gdb.SYMBOL_LOC_COMPUTED
The value's address is a computed location.
@end table
A @code{gdb.Symtab_and_line} object has the following attributes:
@table @code
-@defivar Symtab_and_line symtab
+@defvar Symtab_and_line.symtab
The symbol table object (@code{gdb.Symtab}) for this frame.
This attribute is not writable.
-@end defivar
+@end defvar
-@defivar Symtab_and_line pc
+@defvar Symtab_and_line.pc
Indicates the current program counter address. This attribute is not
writable.
-@end defivar
+@end defvar
-@defivar Symtab_and_line line
+@defvar Symtab_and_line.line
Indicates the current line number for this object. This
attribute is not writable.
-@end defivar
+@end defvar
@end table
A @code{gdb.Symtab_and_line} object has the following methods:
@table @code
-@defmethod Symtab_and_line is_valid
+@defun Symtab_and_line.is_valid ()
Returns @code{True} if the @code{gdb.Symtab_and_line} object is valid,
@code{False} if not. A @code{gdb.Symtab_and_line} object can become
invalid if the Symbol table and line object it refers to does not
exist in @value{GDBN} any longer. All other
@code{gdb.Symtab_and_line} methods will throw an exception if it is
invalid at the time the method is called.
-@end defmethod
+@end defun
@end table
A @code{gdb.Symtab} object has the following attributes:
@table @code
-@defivar Symtab filename
+@defvar Symtab.filename
The symbol table's source filename. This attribute is not writable.
-@end defivar
+@end defvar
-@defivar Symtab objfile
+@defvar Symtab.objfile
The symbol table's backing object file. @xref{Objfiles In Python}.
This attribute is not writable.
-@end defivar
+@end defvar
@end table
A @code{gdb.Symtab} object has the following methods:
@table @code
-@defmethod Symtab is_valid
+@defun Symtab.is_valid ()
Returns @code{True} if the @code{gdb.Symtab} object is valid,
@code{False} if not. A @code{gdb.Symtab} object can become invalid if
the symbol table it refers to does not exist in @value{GDBN} any
longer. All other @code{gdb.Symtab} methods will throw an exception
if it is invalid at the time the method is called.
-@end defmethod
+@end defun
-@defmethod Symtab fullname
+@defun Symtab.fullname ()
Return the symbol table's source absolute file name.
-@end defmethod
+@end defun
@end table
@node Breakpoints In Python
Python code can manipulate breakpoints via the @code{gdb.Breakpoint}
class.
-@defmethod Breakpoint __init__ spec @r{[}type@r{]} @r{[}wp_class@r{]} @r{[}internal@r{]}
+@defun Breakpoint.__init__ (spec @r{[}, type @r{[}, wp_class @r{[},internal@r{]]]})
Create a new breakpoint. @var{spec} is a string naming the
location of the breakpoint, or an expression that defines a
watchpoint. The contents can be any location recognized by the
@code{break} command, or in the case of a watchpoint, by the @code{watch}
command. The optional @var{type} denotes the breakpoint to create
from the types defined later in this chapter. This argument can be
-either: @code{BP_BREAKPOINT} or @code{BP_WATCHPOINT}. @var{type}
-defaults to @code{BP_BREAKPOINT}. The optional @var{internal} argument
+either: @code{gdb.BP_BREAKPOINT} or @code{gdb.BP_WATCHPOINT}. @var{type}
+defaults to @code{gdb.BP_BREAKPOINT}. The optional @var{internal} argument
allows the breakpoint to become invisible to the user. The breakpoint
will neither be reported when created, nor will it be listed in the
output from @code{info breakpoints} (but will be listed with the
@code{maint info breakpoints} command). The optional @var{wp_class}
argument defines the class of watchpoint to create, if @var{type} is
-@code{BP_WATCHPOINT}. If a watchpoint class is not provided, it is
-assumed to be a @var{WP_WRITE} class.
-@end defmethod
+@code{gdb.BP_WATCHPOINT}. If a watchpoint class is not provided, it is
+assumed to be a @code{gdb.WP_WRITE} class.
+@end defun
-@defop Operation {gdb.Breakpoint} stop (self)
+@defun Breakpoint.stop (self)
The @code{gdb.Breakpoint} class can be sub-classed and, in
particular, you may choose to implement the @code{stop} method.
If this method is defined as a sub-class of @code{gdb.Breakpoint},
return True
return False
@end smallexample
-@end defop
+@end defun
The available watchpoint types represented by constants are defined in the
@code{gdb} module:
@table @code
@findex WP_READ
@findex gdb.WP_READ
-@item WP_READ
+@item gdb.WP_READ
Read only watchpoint.
@findex WP_WRITE
@findex gdb.WP_WRITE
-@item WP_WRITE
+@item gdb.WP_WRITE
Write only watchpoint.
@findex WP_ACCESS
@findex gdb.WP_ACCESS
-@item WP_ACCESS
+@item gdb.WP_ACCESS
Read/Write watchpoint.
@end table
-@defmethod Breakpoint is_valid
+@defun Breakpoint.is_valid ()
Return @code{True} if this @code{Breakpoint} object is valid,
@code{False} otherwise. A @code{Breakpoint} object can become invalid
if the user deletes the breakpoint. In this case, the object still
exists, but the underlying breakpoint does not. In the cases of
watchpoint scope, the watchpoint remains valid even if execution of the
inferior leaves the scope of that watchpoint.
-@end defmethod
+@end defun
-@defmethod Breakpoint delete
+@defun Breakpoint.delete
Permanently deletes the @value{GDBN} breakpoint. This also
invalidates the Python @code{Breakpoint} object. Any further access
to this object's attributes or methods will raise an error.
-@end defmethod
+@end defun
-@defivar Breakpoint enabled
+@defvar Breakpoint.enabled
This attribute is @code{True} if the breakpoint is enabled, and
@code{False} otherwise. This attribute is writable.
-@end defivar
+@end defvar
-@defivar Breakpoint silent
+@defvar Breakpoint.silent
This attribute is @code{True} if the breakpoint is silent, and
@code{False} otherwise. This attribute is writable.
Note that a breakpoint can also be silent if it has commands and the
first command is @code{silent}. This is not reported by the
@code{silent} attribute.
-@end defivar
+@end defvar
-@defivar Breakpoint thread
+@defvar Breakpoint.thread
If the breakpoint is thread-specific, this attribute holds the thread
id. If the breakpoint is not thread-specific, this attribute is
@code{None}. This attribute is writable.
-@end defivar
+@end defvar
-@defivar Breakpoint task
+@defvar Breakpoint.task
If the breakpoint is Ada task-specific, this attribute holds the Ada task
id. If the breakpoint is not task-specific (or the underlying
language is not Ada), this attribute is @code{None}. This attribute
is writable.
-@end defivar
+@end defvar
-@defivar Breakpoint ignore_count
+@defvar Breakpoint.ignore_count
This attribute holds the ignore count for the breakpoint, an integer.
This attribute is writable.
-@end defivar
+@end defvar
-@defivar Breakpoint number
+@defvar Breakpoint.number
This attribute holds the breakpoint's number --- the identifier used by
the user to manipulate the breakpoint. This attribute is not writable.
-@end defivar
+@end defvar
-@defivar Breakpoint type
+@defvar Breakpoint.type
This attribute holds the breakpoint's type --- the identifier used to
determine the actual breakpoint type or use-case. This attribute is not
writable.
-@end defivar
+@end defvar
-@defivar Breakpoint visible
+@defvar Breakpoint.visible
This attribute tells whether the breakpoint is visible to the user
when set, or when the @samp{info breakpoints} command is run. This
attribute is not writable.
-@end defivar
+@end defvar
The available types are represented by constants defined in the @code{gdb}
module:
@table @code
@findex BP_BREAKPOINT
@findex gdb.BP_BREAKPOINT
-@item BP_BREAKPOINT
+@item gdb.BP_BREAKPOINT
Normal code breakpoint.
@findex BP_WATCHPOINT
@findex gdb.BP_WATCHPOINT
-@item BP_WATCHPOINT
+@item gdb.BP_WATCHPOINT
Watchpoint breakpoint.
@findex BP_HARDWARE_WATCHPOINT
@findex gdb.BP_HARDWARE_WATCHPOINT
-@item BP_HARDWARE_WATCHPOINT
+@item gdb.BP_HARDWARE_WATCHPOINT
Hardware assisted watchpoint.
@findex BP_READ_WATCHPOINT
@findex gdb.BP_READ_WATCHPOINT
-@item BP_READ_WATCHPOINT
+@item gdb.BP_READ_WATCHPOINT
Hardware assisted read watchpoint.
@findex BP_ACCESS_WATCHPOINT
@findex gdb.BP_ACCESS_WATCHPOINT
-@item BP_ACCESS_WATCHPOINT
+@item gdb.BP_ACCESS_WATCHPOINT
Hardware assisted access watchpoint.
@end table
-@defivar Breakpoint hit_count
+@defvar Breakpoint.hit_count
This attribute holds the hit count for the breakpoint, an integer.
This attribute is writable, but currently it can only be set to zero.
-@end defivar
+@end defvar
-@defivar Breakpoint location
+@defvar Breakpoint.location
This attribute holds the location of the breakpoint, as specified by
the user. It is a string. If the breakpoint does not have a location
(that is, it is a watchpoint) the attribute's value is @code{None}. This
attribute is not writable.
-@end defivar
+@end defvar
-@defivar Breakpoint expression
+@defvar Breakpoint.expression
This attribute holds a breakpoint expression, as specified by
the user. It is a string. If the breakpoint does not have an
expression (the breakpoint is not a watchpoint) the attribute's value
is @code{None}. This attribute is not writable.
-@end defivar
+@end defvar
-@defivar Breakpoint condition
+@defvar Breakpoint.condition
This attribute holds the condition of the breakpoint, as specified by
the user. It is a string. If there is no condition, this attribute's
value is @code{None}. This attribute is writable.
-@end defivar
+@end defvar
-@defivar Breakpoint commands
+@defvar Breakpoint.commands
This attribute holds the commands attached to the breakpoint. If
there are commands, this attribute's value is a string holding all the
commands, separated by newlines. If there are no commands, this
attribute is @code{None}. This attribute is not writable.
-@end defivar
+@end defvar
@node Lazy Strings In Python
@subsubsection Python representation of lazy strings.
A @code{gdb.LazyString} object has the following functions:
-@defmethod LazyString value
+@defun LazyString.value ()
Convert the @code{gdb.LazyString} to a @code{gdb.Value}. This value
will point to the string in memory, but will lose all the delayed
retrieval, encoding and handling that @value{GDBN} applies to a
@code{gdb.LazyString}.
-@end defmethod
+@end defun
-@defivar LazyString address
+@defvar LazyString.address
This attribute holds the address of the string. This attribute is not
writable.
-@end defivar
+@end defvar
-@defivar LazyString length
+@defvar LazyString.length
This attribute holds the length of the string in characters. If the
length is -1, then the string will be fetched and encoded up to the
first null of appropriate width. This attribute is not writable.
-@end defivar
+@end defvar
-@defivar LazyString encoding
+@defvar LazyString.encoding
This attribute holds the encoding that will be applied to the string
when the string is printed by @value{GDBN}. If the encoding is not
set, or contains an empty string, then @value{GDBN} will select the
most appropriate encoding when the string is printed. This attribute
is not writable.
-@end defivar
+@end defvar
-@defivar LazyString type
+@defvar LazyString.type
This attribute holds the type that is represented by the lazy string's
type. For a lazy string this will always be a pointer type. To
resolve this to the lazy string's character type, use the type's
@code{target} method. @xref{Types In Python}. This attribute is not
writable.
-@end defivar
+@end defvar
@node Auto-loading
@subsection Auto-loading
projects / binutils-gdb.git / commitdiff