mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-03 13:16:04 +00:00
bc621cc335
This adds gdb pretty printer for some GStreamer types. For GstObject pointers the type and name is added, e.g. "0x5555557e4110 [GstDecodeBin|decodebin0]". For GstMiniObject pointers the object type is added, e.g. "0x7fffe001fc50 [GstBuffer]". For GstClockTime and GstClockTimeDiff the time is also printed in human readable form, e.g. "150116219955 [+0:02:30.116219955]". Fixes #320
71 lines
1.8 KiB
Python
71 lines
1.8 KiB
Python
##
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## imported from glib: glib/glib_gdb.py
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##
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import gdb
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import sys
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if sys.version_info[0] >= 3:
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long = int
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# This is not quite right, as local vars may override symname
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def read_global_var (symname):
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return gdb.selected_frame().read_var(symname)
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def g_quark_to_string (quark):
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if quark is None:
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return None
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quark = long(quark)
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if quark == 0:
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return None
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try:
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val = read_global_var ("quarks")
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max_q = long(read_global_var ("quark_seq_id"))
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except:
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try:
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val = read_global_var ("g_quarks")
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max_q = long(read_global_var ("g_quark_seq_id"))
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except:
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return None;
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if quark < max_q:
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return val[quark].string()
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return None
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##
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## imported from glib: gobject/gobject_gdb.py
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##
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def g_type_to_typenode (gtype):
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def lookup_fundamental_type (typenode):
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if typenode == 0:
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return None
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val = read_global_var ("static_fundamental_type_nodes")
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if val is None:
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return None
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return val[typenode >> 2].address
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gtype = long(gtype)
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typenode = gtype - gtype % 4
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if typenode > (255 << 2):
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typenode = gdb.Value(typenode).cast (gdb.lookup_type("TypeNode").pointer())
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else:
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typenode = lookup_fundamental_type (typenode)
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return typenode
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def g_type_to_name (gtype):
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typenode = g_type_to_typenode(gtype)
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if typenode != None:
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return g_quark_to_string (typenode["qname"])
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return None
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def g_type_name_from_instance (instance):
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if long(instance) != 0:
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try:
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inst = instance.cast (gdb.lookup_type("GTypeInstance").pointer())
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klass = inst["g_class"]
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gtype = klass["g_type"]
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name = g_type_to_name (gtype)
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return name
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except RuntimeError:
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pass
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return None
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