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Enhance gdb-gdb.py to handle main_type.type_specific.

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* gdb-gdb.py: Print the type-specific part of struct main_type.
This commit is contained in:
Joel Brobecker 2010-01-15 09:15:46 +00:00
parent 41263c058c
commit c389c3dc73
2 changed files with 31 additions and 5 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2010-01-15 Joel Brobecker <brobecker@adacore.com>
Enhance gdb-gdb.py to handle main_type.type_specific.
* gdb-gdb.py: Print the type-specific part of struct main_type.
2010-01-15 Jan Kratochvil <jan.kratochvil@redhat.com>
* configure.ac (AC_CHECK_FUNCS): Check for setrlimit and getrlimit.

31
gdb/gdb-gdb.py
View file

@ -187,6 +187,30 @@ class StructMainTypePrettyPrinter:
if b['high_undefined'] != 0:
high += " (undefined)"
return "bounds = {%s, %s}" % (low, high)
def type_specific_img(self):
"""Return a string image of the main_type type_specific union.
Only the relevant component of that union is printed (based on
the value of the type_specific_kind field.
"""
type_specific_kind = str(self.val['type_specific_field'])
type_specific = self.val['type_specific']
if type_specific_kind == "TYPE_SPECIFIC_NONE":
img = 'type_specific_field = %s' % type_specific_kind
elif type_specific_kind == "TYPE_SPECIFIC_CPLUS_STUFF":
img = "cplus_stuff = %s" % type_specific['cplus_stuff']
elif type_specific_kind == "TYPE_SPECIFIC_GNAT_STUFF":
img = ("gnat_stuff = {descriptive_type = %s}"
% type_specific['gnat_stuff']['descriptive_type'])
elif type_specific_kind == "TYPE_SPECIFIC_FLOATFORMAT":
img = "floatformat[0..1] = %s" % type_specific['floatformat']
elif type_specific_kind == "TYPE_SPECIFIC_CALLING_CONVENTION":
img = ("calling_convention = %d"
% type_specific['calling_convention'])
else:
img = ("type_specific = ??? (unknown type_secific_kind: %s)"
% type_specific_kind)
return img
def to_string(self):
"""Return a pretty-printed image of our main_type.
"""
@ -200,14 +224,11 @@ class StructMainTypePrettyPrinter:
fields.append("vptr_basetype = %s" % self.val['vptr_basetype'])
if self.val['nfields'] > 0:
for fieldno in range(self.val['nfields']):
fields.append("field[%d]:")
fields.append(self.struct_field_img(fieldno))
if self.val.type.code == gdb.TYPE_CODE_RANGE:
fields.append(self.bounds_img())
# FIXME: We need to print the type_specific field as well.
# But I will wait for a patch that introduces a discriminant.
# This will simplify the selection of the right component in
# that union.
fields.append(self.type_specific_img())
return "\n{" + ",\n ".join(fields) + "}"
def type_lookup_function(val):