From 59fb7612ddee9219817a0c33b7d533b3d1c2aa41 Mon Sep 17 00:00:00 2001 From: Sasha Smundak Date: Tue, 28 Apr 2015 17:41:09 -0700 Subject: [PATCH] Add gdb.Type.optimized_out method. gdb/ChangeLog: * NEWS: Mention gdb.Type.optimized_out method. * python/py-type.c (typy_optimized_out): New function. gdb/doc/ChangeLog: * python.texi: New method documented. gdb/testsuite/ChangeLog: * gdb.python/py-type.exp: New test. --- gdb/ChangeLog | 5 +++++ gdb/NEWS | 2 ++ gdb/doc/ChangeLog | 4 ++++ gdb/doc/python.texi | 5 +++++ gdb/python/py-type.c | 13 +++++++++++++ gdb/testsuite/ChangeLog | 4 ++++ gdb/testsuite/gdb.python/py-type.exp | 3 +++ 7 files changed, 36 insertions(+) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 721346a..4e78d39 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,8 @@ +2015-04-28 Sasha Smundak + + * NEWS: Mention gdb.Type.optimized_out method. + * python/py-type.c (typy_optimized_out): New function. + 2015-04-28 John Baldwin * fbsd-nat.c: Include "gdb_wait.h" instead of . diff --git a/gdb/NEWS b/gdb/NEWS index b711553..d463b52 100644 --- a/gdb/NEWS +++ b/gdb/NEWS @@ -52,6 +52,8 @@ which is the name of the objfile as specified by the user, without, for example, resolving symlinks. ** You can now write frame unwinders in Python. + ** gdb.Type objects have a new method "optimized_out", + returning optimized out gdb.Value instance of this type. * New commands diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog index 5da9943..13ca87b 100644 --- a/gdb/doc/ChangeLog +++ b/gdb/doc/ChangeLog @@ -1,3 +1,7 @@ +2015-04-28 Sasha Smundak + + * python.texi: New method documented. + 2015-04-24 Andrew Burgess * gdb.texinfo (Dump/Restore Files): Add detail about verilog dump diff --git a/gdb/doc/python.texi b/gdb/doc/python.texi index 448fa8b2..12d2b71 100644 --- a/gdb/doc/python.texi +++ b/gdb/doc/python.texi @@ -1060,6 +1060,11 @@ If @var{block} is given, then @var{name} is looked up in that scope. Otherwise, it is searched for globally. @end defun +@defun Type.optimized_out () +Return @code{gdb.Value} instance of this type whose value is optimized +out. This allows a frame decorator to indicate that the value of an +argument or a local variable is not known. +@end defun Each type has a code, which indicates what category this type falls into. The available type categories are represented by constants diff --git a/gdb/python/py-type.c b/gdb/python/py-type.c index 39376a1..648d8c8 100644 --- a/gdb/python/py-type.c +++ b/gdb/python/py-type.c @@ -1181,6 +1181,16 @@ typy_nonzero (PyObject *self) return 1; } +/* Return optimized out value of this type. */ + +static PyObject * +typy_optimized_out (PyObject *self, PyObject *args) +{ + struct type *type = ((type_object *) self)->type; + + return value_to_value_object (allocate_optimized_out_value (type)); +} + /* Return a gdb.Field object for the field named by the argument. */ static PyObject * @@ -1493,6 +1503,9 @@ They are first class values." }, { "const", typy_const, METH_NOARGS, "const () -> Type\n\ Return a const variant of this type." }, + { "optimized_out", typy_optimized_out, METH_NOARGS, + "optimized_out() -> Value\n\ +Return optimized out value of this type." }, { "fields", typy_fields, METH_NOARGS, "fields () -> list\n\ Return a list holding all the fields of this type.\n\ diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index 1967aca..80d88cf 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2015-04-28 Sasha Smundak + + * gdb.python/py-type.exp: New test. + 2015-04-28 Andy Wingo * gdb.python/py-parameter.exp: diff --git a/gdb/testsuite/gdb.python/py-type.exp b/gdb/testsuite/gdb.python/py-type.exp index 9e522f2..58a2394 100644 --- a/gdb/testsuite/gdb.python/py-type.exp +++ b/gdb/testsuite/gdb.python/py-type.exp @@ -253,6 +253,9 @@ gdb_test "python print(gdb.lookup_type('char').array(1, 0))" \ gdb_test "python print(gdb.lookup_type('char').array(1, -1))" \ "Array length must not be negative.*" +gdb_test "python print(gdb.lookup_type('int').optimized_out())" \ + "" + with_test_prefix "lang_c" { runto_bp "break to inspect struct and array." test_fields "c" -- 2.7.4