mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-05 00:04:22 +08:00
1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
85 lines
2.7 KiB
Python
85 lines
2.7 KiB
Python
# Copyright (C) 2016-2024 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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# This unwinder never does any unwinding. It'll (pretend to) "sniff"
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# the frame and ultimately return None, indicating that actual unwinding
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# should be performed by some other unwinder.
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#
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# But, prior to returning None, it will attempt to obtain the value
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# associated with a symbol via a call to gdb.parse_and_eval(). In
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# the course of doing this evaluation, GDB will potentially access
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# some frames, leading to the possibility of a recursive invocation of
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# this unwinder. If that should happen, code contained herein detects
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# that and prints a message which will cause some of the associated
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# tests to FAIL.
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import gdb
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from gdb.unwinder import Unwinder
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class TestUnwinder(Unwinder):
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count = 0
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@classmethod
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def reset_count(cls):
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cls.count = 0
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@classmethod
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def inc_count(cls):
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cls.count += 1
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test = "check_undefined_symbol"
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@classmethod
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def set_test(cls, test):
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cls.test = test
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def __init__(self):
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Unwinder.__init__(self, "test unwinder")
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self.recurse_level = 0
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def __call__(self, pending_frame):
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if self.recurse_level > 0:
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gdb.write("TestUnwinder: Recursion detected - returning early.\n")
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return None
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self.recurse_level += 1
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TestUnwinder.inc_count()
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if TestUnwinder.test == "check_user_reg_pc":
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pc = pending_frame.read_register("pc")
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pc_as_int = int(pc.cast(gdb.lookup_type("int")))
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# gdb.write("In unwinder: pc=%x\n" % pc_as_int)
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elif TestUnwinder.test == "check_pae_pc":
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pc = gdb.parse_and_eval("$pc")
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pc_as_int = int(pc.cast(gdb.lookup_type("int")))
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# gdb.write("In unwinder: pc=%x\n" % pc_as_int)
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elif TestUnwinder.test == "check_undefined_symbol":
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try:
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val = gdb.parse_and_eval("undefined_symbol")
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except Exception as arg:
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pass
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self.recurse_level -= 1
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return None
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gdb.unwinder.register_unwinder(None, TestUnwinder(), True)
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gdb.write("Python script imported\n")
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