gdb

2009-05-27 Tom Tromey <tromey@redhat.com> Thiago Jung Bauermann <bauerman@br.ibm.com> Phil Muldoon <pmuldoon@redhat.com> Paul Pluzhnikov <ppluzhnikov@google.com> Vladimir Prus <vladimir@codesourcery.com> * python/python-value.c (value_object_to_value): New function. * python/python-internal.h: Include frameobject.h. (gdbpy_children_cst, gdbpy_to_string_cst, gdbpy_display_hint_cst): Declare. (value_object_to_value): Declare. * printcmd.c (struct format_data) <raw>: New field. (last_format): Default to 0. (decode_format): Initialize val.raw. Handle /r flag. (print_command_1): Initialize fmt.raw and opts.raw. (output_command): Likewise. (x_command): Fix initialization of fmt.format. Initialize fmt.raw. (display_command): Initialize fmt.raw. (do_one_display): Set opts.raw. * python/python.c (gdbpy_to_string_cst, gdbpy_children_cst, gdbpy_display_hint_cst): New globals. (_initialize_python): Initialize them. Set gdb.pretty_printers. * cp-valprint.c: Include python.h. (cp_print_value): Call apply_val_pretty_printer. * python/python.h (apply_val_pretty_printer): Declare. * stack.c (print_this_frame_argument_p): Remove. (print_frame_args): Compute summary flag. Don't use print_this_frame_argument_p. * valprint.c: Include python.h. (user_print_options): Initialize new fields. (scalar_type_p): New function. (val_print): Handle 'raw' and 'summary' modes. Call apply_val_pretty_printer. (value_print): Handle 'raw' mode. * valprint.h (struct value_print_options) <raw, summary>: New fields. * Makefile.in (SUBDIR_PYTHON_OBS): Add python-prettyprint.o (SUBDIR_PYTHON_SRCS): Add python-prettyprint.c. (python-prettyprint.o): New target. * python/python-prettyprint.c: New file. gdb/doc 2009-05-27 Tom Tromey <tromey@redhat.com> Thiago Jung Bauermann <bauerman@br.ibm.com> Phil Muldoon <pmuldoon@redhat.com> * gdb.texinfo (Objfiles In Python): Reference pretty printing. (Pretty Printing): New node. (Selecting Pretty-Printers): Likewise. (Python API): Update. (Output Formats): Document /r format. gdb/testsuite 2009-05-27 Tom Tromey <tromey@redhat.com> Thiago Jung Bauermann <bauerman@br.ibm.com> Phil Muldoon <pmuldoon@redhat.com> Paul Pluzhnikov <ppluzhnikov@google.com> * gdb.python/python-prettyprint.exp: New file. * gdb.python/python-prettyprint.c: New file. * gdb.python/python-prettyprint.py: New file. * gdb.base/display.exp: print/r is now valid.
2009-05-28 01:05:14 +00:00 · 2009-05-28 01:05:14 +00:00 · a6bac58e84
commit a6bac58e84
parent 42ae523077
19 changed files with 1399 additions and 55 deletions
--- a/gdb/testsuite/gdb.python/python-prettyprint.py
+++ b/gdb/testsuite/gdb.python/python-prettyprint.py
@ -0,0 +1,151 @@
+# Copyright (C) 2008, 2009 Free Software Foundation, Inc.
+
+# 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, see <http://www.gnu.org/licenses/>.
+
+# This file is part of the GDB testsuite.  It tests python pretty
+# printers.
+
+import re
+
+# Test returning a Value from a printer.
+class string_print:
+    def __init__(self, val):
+        self.val = val
+
+    def to_string(self):
+        return self.val['whybother']['contents']
+
+# Test a class-based printer.
+class ContainerPrinter:
+    class _iterator:
+        def __init__ (self, pointer, len):
+            self.start = pointer
+            self.pointer = pointer
+            self.end = pointer + len
+
+        def __iter__(self):
+            return self
+
+        def next(self):
+            if self.pointer == self.end:
+                raise StopIteration
+            result = self.pointer
+            self.pointer = self.pointer + 1
+            return ('[%d]' % int (result - self.start), result.dereference())
+
+    def __init__(self, val):
+        self.val = val
+
+    def to_string(self):
+        return 'container %s with %d elements' % (self.val['name'], self.val['len'])
+
+    def children(self):
+        return self._iterator(self.val['elements'], self.val['len'])
+
+class pp_s:
+    def __init__(self, val):
+        self.val = val
+
+    def to_string(self):
+        a = self.val["a"]
+        b = self.val["b"]
+        if a.address != b:
+            raise Exception("&a(%s) != b(%s)" % (str(a.address), str(b)))
+        return " a=<" + str(self.val["a"]) + "> b=<" + str(self.val["b"]) + ">"
+
+class pp_ss:
+    def __init__(self, val):
+        self.val = val
+
+    def to_string(self):
+        return "a=<" + str(self.val["a"]) + "> b=<" + str(self.val["b"]) + ">"
+
+class pp_sss:
+    def __init__(self, val):
+        self.val = val
+
+    def to_string(self):
+        return "a=<" + str(self.val['a']) + "> b=<" + str(self.val["b"]) + ">"
+
+class pp_multiple_virtual:
+    def __init__ (self, val):
+        self.val = val
+
+    def to_string (self):
+        return "pp value variable is: " + str (self.val['value'])
+
+class pp_vbase1:
+    def __init__ (self, val):
+        self.val = val
+
+    def to_string (self):
+        return "pp class name: " + self.val.type.tag
+
+def lookup_function (val):
+    "Look-up and return a pretty-printer that can print val."
+
+    # Get the type.
+    type = val.type;
+
+    # If it points to a reference, get the reference.
+    if type.code == gdb.TYPE_CODE_REF:
+        type = type.target ()
+
+    # Get the unqualified type, stripped of typedefs.
+    type = type.unqualified ().strip_typedefs ()
+
+    # Get the type name.    
+    typename = type.tag
+
+    if typename == None:
+        return None
+
+    # Iterate over local dictionary of types to determine
+    # if a printer is registered for that type.  Return an
+    # instantiation of the printer if found.
+    for function in pretty_printers_dict:
+        if function.match (typename):
+            return pretty_printers_dict[function] (val)
+        
+    # Cannot find a pretty printer.  Return None.
+
+    return None
+
+
+def register_pretty_printers ():
+    pretty_printers_dict[re.compile ('^struct s$')]   = pp_s
+    pretty_printers_dict[re.compile ('^s$')]   = pp_s
+    pretty_printers_dict[re.compile ('^S$')]   = pp_s
+
+    pretty_printers_dict[re.compile ('^struct ss$')]  = pp_ss
+    pretty_printers_dict[re.compile ('^ss$')]  = pp_ss
+    pretty_printers_dict[re.compile ('^const S &$')]   = pp_s
+    pretty_printers_dict[re.compile ('^SSS$')]  = pp_sss
+    
+    pretty_printers_dict[re.compile ('^VirtualTest$')] =  pp_multiple_virtual
+    pretty_printers_dict[re.compile ('^Vbase1$')] =  pp_vbase1
+    
+    # Note that we purposely omit the typedef names here.
+    # Printer lookup is based on canonical name.
+    # However, we do need both tagged and untagged variants, to handle
+    # both the C and C++ cases.
+    pretty_printers_dict[re.compile ('^struct string_repr$')] = string_print
+    pretty_printers_dict[re.compile ('^struct container$')] = ContainerPrinter
+    pretty_printers_dict[re.compile ('^string_repr$')] = string_print
+    pretty_printers_dict[re.compile ('^container$')] = ContainerPrinter
+    
+pretty_printers_dict = {}
+
+register_pretty_printers ()
+gdb.pretty_printers.append (lookup_function)