diff options
Diffstat (limited to 'gdb/python')
| -rw-r--r-- | gdb/python/py-registers.c | 44 |
1 files changed, 43 insertions, 1 deletions
diff --git a/gdb/python/py-registers.c b/gdb/python/py-registers.c index f64ca3c..fffe3ec 100644 --- a/gdb/python/py-registers.c +++ b/gdb/python/py-registers.c @@ -23,6 +23,7 @@ #include "disasm.h" #include "reggroups.h" #include "python-internal.h" +#include "user-regs.h" #include <unordered_map> /* Token to access per-gdbarch data related to register descriptors. */ @@ -337,6 +338,38 @@ gdbpy_register_descriptor_iter_next (PyObject *self) while (true); } +/* Implement: + + gdb.RegisterDescriptorIterator.find (self, name) -> gdb.RegisterDescriptor + + Look up a descriptor for register with NAME. If no matching register is + found then return None. */ + +static PyObject * +register_descriptor_iter_find (PyObject *self, PyObject *args, PyObject *kw) +{ + static const char *keywords[] = { "name", NULL }; + const char *register_name = NULL; + + register_descriptor_iterator_object *iter_obj + = (register_descriptor_iterator_object *) self; + struct gdbarch *gdbarch = iter_obj->gdbarch; + + if (!gdb_PyArg_ParseTupleAndKeywords (args, kw, "s", keywords, + ®ister_name)) + return NULL; + + if (register_name != NULL && *register_name != '\0') + { + int regnum = user_reg_map_name_to_regnum (gdbarch, register_name, + strlen (register_name)); + if (regnum >= 0) + return gdbpy_get_register_descriptor (gdbarch, regnum).release (); + } + + Py_RETURN_NONE; +} + /* Initializes the new Python classes from this file in the gdb module. */ int @@ -377,6 +410,15 @@ gdbpy_initialize_registers () (PyObject *) ®ister_descriptor_iterator_object_type)); } +static PyMethodDef register_descriptor_iterator_object_methods [] = { + { "find", (PyCFunction) register_descriptor_iter_find, + METH_VARARGS | METH_KEYWORDS, + "registers (name) -> gdb.RegisterDescriptor.\n\ +Return a register descriptor for the register NAME, or None if no register\n\ +with that name exists in this iterator." }, + {NULL} /* Sentinel */ +}; + PyTypeObject register_descriptor_iterator_object_type = { PyVarObject_HEAD_INIT (NULL, 0) "gdb.RegisterDescriptorIterator", /*tp_name*/ @@ -405,7 +447,7 @@ PyTypeObject register_descriptor_iterator_object_type = { 0, /*tp_weaklistoffset */ gdbpy_register_descriptor_iter, /*tp_iter */ gdbpy_register_descriptor_iter_next, /*tp_iternext */ - 0 /*tp_methods */ + register_descriptor_iterator_object_methods /*tp_methods */ }; static gdb_PyGetSetDef gdbpy_register_descriptor_getset[] = { |