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Remove obsolete TYPE_FLAG_... values

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Now that init_type no longer takes a FLAGS argument, there is no user of
the TYPE_FLAGS_... enum values left.  This commit removes them (and all
references to them in comments as well).

This is mostly a no-op, except for a change to the Python type printer,
which attempted to use them before.  (As best as I can tell, this wasn't
really needed anyway, since it was only used to pretty-print type
*instance* flags, which only use the instance flags.)

gdb/ChangeLog:

	* gdbtypes.h (enum type_flag_value): Remove.
	Remove references to TYPE_FLAG_... in comments throughout.
	* gdbtypes.c (recursive_dump_type): Do not print TYPE_FLAG_...
	flags, print the corresponding TYPE_... access macro names.
	Remove references to TYPE_FLAG_... in comments throughout.
	* infcall.c: Remove references to TYPE_FLAG_... in comments.
	* valprint.c: Likewise.
	* gdb-gdb.py (class TypeFlag): No longer consider TYPE_FLAG_...
	values, only TYPE_INSTANCE_FLAG_... values.
	(class TypeFlagsPrinter): Likewise.

gdb/testsuite/ChangeLog:

	* gdb.cp/hang.exp: Remove reference to TYPE_FLAG_STUB in comment.

Signed-off-by: Ulrich Weigand <ulrich.weigand@de.ibm.com>
This commit is contained in:
Ulrich Weigand 2016-09-06 17:29:15 +02:00
parent 19f392bc2a
commit a9ff5f12cf
8 changed files with 58 additions and 84 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
gdb/ChangeLog
View File

@ -1,3 +1,16 @@
2016-09-05 Ulrich Weigand <uweigand@de.ibm.com>
* gdbtypes.h (enum type_flag_value): Remove.
Remove references to TYPE_FLAG_... in comments throughout.
* gdbtypes.c (recursive_dump_type): Do not print TYPE_FLAG_...
flags, print the corresponding TYPE_... access macro names.
Remove references to TYPE_FLAG_... in comments throughout.
* infcall.c: Remove references to TYPE_FLAG_... in comments.
* valprint.c: Likewise.
* gdb-gdb.py (class TypeFlag): No longer consider TYPE_FLAG_...
values, only TYPE_INSTANCE_FLAG_... values.
(class TypeFlagsPrinter): Likewise.
2016-09-05 Ulrich Weigand <uweigand@de.ibm.com>
* gdbtypes.h (init_type): Remove FLAGS argument. Move OBJFILE

32
gdb/gdb-gdb.py
View File

@ -24,29 +24,26 @@ class TypeFlag:
In the GDB sources, struct type has a component called instance_flags
in which the value is the addition of various flags. These flags are
defined by two enumerates: type_flag_value, and type_instance_flag_value.
This class helps us recreate a list with all these flags that is
easy to manipulate and sort. Because all flag names start with either
TYPE_FLAG_ or TYPE_INSTANCE_FLAG_, a short_name attribute is provided
that strips this prefix.
defined by the enumerates type_instance_flag_value. This class helps us
recreate a list with all these flags that is easy to manipulate and sort.
Because all flag names start with TYPE_INSTANCE_FLAG_, a short_name
attribute is provided that strips this prefix.
ATTRIBUTES
name: The enumeration name (eg: "TYPE_FLAG_UNSIGNED").
name: The enumeration name (eg: "TYPE_INSTANCE_FLAG_CONST").
value: The associated value.
short_name: The enumeration name, with the suffix stripped.
"""
def __init__(self, name, value):
self.name = name
self.value = value
self.short_name = name.replace("TYPE_FLAG_", '')
if self.short_name == name:
self.short_name = name.replace("TYPE_INSTANCE_FLAG_", '')
self.short_name = name.replace("TYPE_INSTANCE_FLAG_", '')
def __cmp__(self, other):
"""Sort by value order."""
return self.value.__cmp__(other.value)
# A list of all existing TYPE_FLAGS_* and TYPE_INSTANCE_FLAGS_*
# enumerations, stored as TypeFlags objects. Lazy-initialized.
# A list of all existing TYPE_INSTANCE_FLAGS_* enumerations,
# stored as TypeFlags objects. Lazy-initialized.
TYPE_FLAGS = None
class TypeFlagsPrinter:
@ -85,25 +82,14 @@ class TypeFlagsPrinter:
"""
global TYPE_FLAGS
TYPE_FLAGS = []
try:
flags = gdb.lookup_type("enum type_flag_value")
except:
print("Warning: Cannot find enum type_flag_value type.")
print(" `struct type' pretty-printer will be degraded")
return
try:
iflags = gdb.lookup_type("enum type_instance_flag_value")
except:
print("Warning: Cannot find enum type_instance_flag_value type.")
print(" `struct type' pretty-printer will be degraded")
return
# Note: TYPE_FLAG_MIN is a duplicate of TYPE_FLAG_UNSIGNED,
# so exclude it from the list we are building.
TYPE_FLAGS = [TypeFlag(field.name, field.enumval)
for field in flags.fields()
if field.name != 'TYPE_FLAG_MIN']
TYPE_FLAGS += [TypeFlag(field.name, field.enumval)
for field in iflags.fields()]
for field in iflags.fields()]
TYPE_FLAGS.sort()
class StructTypePrettyPrinter:

36
gdb/gdbtypes.c
View File

@ -1119,7 +1119,7 @@ create_array_type_with_stride (struct type *result_type,
if (bit_stride > 0)
TYPE_FIELD_BITSIZE (result_type, 0) = bit_stride;
/* TYPE_FLAG_TARGET_STUB will take care of zero length arrays. */
/* TYPE_TARGET_STUB will take care of zero length arrays. */
if (TYPE_LENGTH (result_type) == 0)
TYPE_TARGET_STUB (result_type) = 1;
@ -4325,77 +4325,77 @@ recursive_dump_type (struct type *type, int spaces)
TYPE_INSTANCE_FLAGS (type));
if (TYPE_CONST (type))
{
puts_filtered (" TYPE_FLAG_CONST");
puts_filtered (" TYPE_CONST");
}
if (TYPE_VOLATILE (type))
{
puts_filtered (" TYPE_FLAG_VOLATILE");
puts_filtered (" TYPE_VOLATILE");
}
if (TYPE_CODE_SPACE (type))
{
puts_filtered (" TYPE_FLAG_CODE_SPACE");
puts_filtered (" TYPE_CODE_SPACE");
}
if (TYPE_DATA_SPACE (type))
{
puts_filtered (" TYPE_FLAG_DATA_SPACE");
puts_filtered (" TYPE_DATA_SPACE");
}
if (TYPE_ADDRESS_CLASS_1 (type))
{
puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_1");
puts_filtered (" TYPE_ADDRESS_CLASS_1");
}
if (TYPE_ADDRESS_CLASS_2 (type))
{
puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_2");
puts_filtered (" TYPE_ADDRESS_CLASS_2");
}
if (TYPE_RESTRICT (type))
{
puts_filtered (" TYPE_FLAG_RESTRICT");
puts_filtered (" TYPE_RESTRICT");
}
if (TYPE_ATOMIC (type))
{
puts_filtered (" TYPE_FLAG_ATOMIC");
puts_filtered (" TYPE_ATOMIC");
}
puts_filtered ("\n");
printfi_filtered (spaces, "flags");
if (TYPE_UNSIGNED (type))
{
puts_filtered (" TYPE_FLAG_UNSIGNED");
puts_filtered (" TYPE_UNSIGNED");
}
if (TYPE_NOSIGN (type))
{
puts_filtered (" TYPE_FLAG_NOSIGN");
puts_filtered (" TYPE_NOSIGN");
}
if (TYPE_STUB (type))
{
puts_filtered (" TYPE_FLAG_STUB");
puts_filtered (" TYPE_STUB");
}
if (TYPE_TARGET_STUB (type))
{
puts_filtered (" TYPE_FLAG_TARGET_STUB");
puts_filtered (" TYPE_TARGET_STUB");
}
if (TYPE_STATIC (type))
{
puts_filtered (" TYPE_FLAG_STATIC");
puts_filtered (" TYPE_STATIC");
}
if (TYPE_PROTOTYPED (type))
{
puts_filtered (" TYPE_FLAG_PROTOTYPED");
puts_filtered (" TYPE_PROTOTYPED");
}
if (TYPE_INCOMPLETE (type))
{
puts_filtered (" TYPE_FLAG_INCOMPLETE");
puts_filtered (" TYPE_INCOMPLETE");
}
if (TYPE_VARARGS (type))
{
puts_filtered (" TYPE_FLAG_VARARGS");
puts_filtered (" TYPE_VARARGS");
}
/* This is used for things like AltiVec registers on ppc. Gcc emits
an attribute for the array type, which tells whether or not we
have a vector, instead of a regular array. */
if (TYPE_VECTOR (type))
{
puts_filtered (" TYPE_FLAG_VECTOR");
puts_filtered (" TYPE_VECTOR");
}
if (TYPE_FIXED_INSTANCE (type))
{

39
gdb/gdbtypes.h
View File

@ -184,35 +184,8 @@ enum type_code
TYPE_CODE_XMETHOD
};
/* * Some constants representing each bit field in the main_type. See
the bit-field-specific macros, below, for documentation of each
constant in this enum. These enum values are only used with
init_type. Note that the values are chosen not to conflict with
type_instance_flag_value; this lets init_type error-check its
input. */
enum type_flag_value
{
TYPE_FLAG_UNSIGNED = (1 << 9),
TYPE_FLAG_NOSIGN = (1 << 10),
TYPE_FLAG_STUB = (1 << 11),
TYPE_FLAG_TARGET_STUB = (1 << 12),
TYPE_FLAG_STATIC = (1 << 13),
TYPE_FLAG_PROTOTYPED = (1 << 14),
TYPE_FLAG_INCOMPLETE = (1 << 15),
TYPE_FLAG_VARARGS = (1 << 16),
TYPE_FLAG_VECTOR = (1 << 17),
TYPE_FLAG_FIXED_INSTANCE = (1 << 18),
TYPE_FLAG_STUB_SUPPORTED = (1 << 19),
TYPE_FLAG_GNU_IFUNC = (1 << 20),
/* * Used for error-checking. */
TYPE_FLAG_MIN = TYPE_FLAG_UNSIGNED
};
/* * Some bits for the type's instance_flags word. See the macros
below for documentation on each bit. Note that if you add a value
here, you must update the enum type_flag_value as well. */
below for documentation on each bit. */
enum type_instance_flag_value
{
@ -228,7 +201,7 @@ enum type_instance_flag_value
};
/* * Unsigned integer type. If this is not set for a TYPE_CODE_INT,
the type is signed (unless TYPE_FLAG_NOSIGN (below) is set). */
the type is signed (unless TYPE_NOSIGN (below) is set). */
#define TYPE_UNSIGNED(t) (TYPE_MAIN_TYPE (t)->flag_unsigned)
@ -370,11 +343,11 @@ enum type_instance_flag_value
architecture's two (or more) address spaces, but this is an extension
of the architecture's model.
If TYPE_FLAG_INST is set, an object of the corresponding type
If TYPE_INSTANCE_FLAG_CODE_SPACE is set, an object of the corresponding type
resides in instruction memory, even if its address (in the extended
flat address space) does not reflect this.
Similarly, if TYPE_FLAG_DATA is set, then an object of the
Similarly, if TYPE_INSTANCE_FLAG_DATA_SPACE is set, then an object of the
corresponding type resides in the data memory space, even if
this is not indicated by its (flat address space) address.
@ -390,7 +363,7 @@ enum type_instance_flag_value
/* * Address class flags. Some environments provide for pointers
whose size is different from that of a normal pointer or address
types where the bits are interpreted differently than normal
addresses. The TYPE_FLAG_ADDRESS_CLASS_n flags may be used in
addresses. The TYPE_INSTANCE_FLAG_ADDRESS_CLASS_n flags may be used in
target specific ways to represent these different types of address
classes. */
@ -685,7 +658,7 @@ struct main_type
This is used for printing only, except by poorly designed C++ code.
For looking up a name, look for a symbol in the STRUCT_DOMAIN.
One more legitimate use is that if TYPE_FLAG_STUB is set, this is
One more legitimate use is that if TYPE_STUB is set, this is
the name to use to look for definitions in other files. */
const char *tag_name;

7
gdb/infcall.c
View File

@ -61,10 +61,9 @@
Unfortunately, on certain older platforms, the debug info doesn't
indicate reliably how each function was defined. A function type's
TYPE_FLAG_PROTOTYPED flag may be clear, even if the function was
defined in prototype style. When calling a function whose
TYPE_FLAG_PROTOTYPED flag is clear, GDB consults this flag to
decide what to do.
TYPE_PROTOTYPED flag may be clear, even if the function was defined
in prototype style. When calling a function whose TYPE_PROTOTYPED
flag is clear, GDB consults this flag to decide what to do.
For modern targets, it is proper to assume that, if the prototype
flag is clear, that can be trusted: `float' arguments should be

4
gdb/testsuite/ChangeLog
View File

@ -1,3 +1,7 @@
2016-09-05 Ulrich Weigand <uweigand@de.ibm.com>
* gdb.cp/hang.exp: Remove reference to TYPE_FLAG_STUB in comment.
2016-09-05 Pedro Alves <palves@redhat.com>
PR backtrace/19927

4
gdb/testsuite/gdb.cp/hang.exp
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@ -58,8 +58,8 @@ if {[prepare_for_testing $testfile.exp $testfile \
#
# Since `hang2.o''s psymtab lists `hang1.o' as a dependency, GDB first
# reads `hang1.o''s symbols. When GDB sees `(1,3)=xsB:', it creates a
# type object for `struct B', sets its TYPE_FLAG_STUB flag, and
# records it as type number `(1,3)'.
# type object for `struct B', sets its TYPE_STUB flag, and records it
# as type number `(1,3)'.
#
# When GDB finds the definition of `struct C::B', since the stabs
# don't indicate that the type is nested within C, it treats it as

7
gdb/valprint.c
View File

@ -999,10 +999,9 @@ generic_val_print (struct type *type, const gdb_byte *valaddr,
break;
case TYPE_CODE_UNDEF:
/* This happens (without TYPE_FLAG_STUB set) on systems which
don't use dbx xrefs (NO_DBX_XREFS in gcc) if a file has a
"struct foo *bar" and no complete type for struct foo in that
file. */
/* This happens (without TYPE_STUB set) on systems which don't use
dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar"
and no complete type for struct foo in that file. */
fprintf_filtered (stream, _("<incomplete type>"));
break;