mirror of
https://sourceware.org/git/binutils-gdb.git
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4a94e36819
This commit brings all the changes made by running gdb/copyright.py as per GDB's Start of New Year Procedure. For the avoidance of doubt, all changes in this commits were performed by the script.
73 lines
2.2 KiB
Python
73 lines
2.2 KiB
Python
# Copyright (C) 2021-2022 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import gdb
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from gdb.unwinder import Unwinder
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class FrameId(object):
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def __init__(self, sp, pc):
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self._sp = sp
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self._pc = pc
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@property
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def sp(self):
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return self._sp
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@property
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def pc(self):
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return self._pc
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class TestUnwinder(Unwinder):
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def __init__(self, use_descriptors):
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if use_descriptors:
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tag = "using descriptors"
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else:
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tag = "using strings"
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Unwinder.__init__(self, "break unwinding %s" % tag)
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self._use_descriptors = use_descriptors
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def __call__(self, pending_frame):
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pc_desc = pending_frame.architecture().registers().find("pc")
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pc = pending_frame.read_register(pc_desc)
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sp_desc = pending_frame.architecture().registers().find("sp")
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sp = pending_frame.read_register(sp_desc)
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block = gdb.block_for_pc(int(pc))
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if block is None:
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return None
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func = block.function
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if func is None:
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return None
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if str(func) != "bar":
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return None
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fid = FrameId(pc, sp)
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unwinder = pending_frame.create_unwind_info(fid)
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if self._use_descriptors:
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unwinder.add_saved_register(pc_desc, pc)
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unwinder.add_saved_register(sp_desc, sp)
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else:
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unwinder.add_saved_register("pc", pc)
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unwinder.add_saved_register("sp", sp)
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return unwinder
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gdb.unwinder.register_unwinder(None, TestUnwinder(True), True)
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gdb.unwinder.register_unwinder(None, TestUnwinder(False), True)
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