82607a73f8
Make sure that qemu gdbstub, like gdbserver, allows reading from and writing to PROT_NONE pages. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20240129093410.3151-4-iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
37 lines
982 B
Python
37 lines
982 B
Python
"""Test that GDB can access PROT_NONE pages.
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This runs as a sourced script (via -x, via run-test.py).
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SPDX-License-Identifier: GPL-2.0-or-later
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"""
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import ctypes
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from test_gdbstub import main, report
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def probe_proc_self_mem():
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buf = ctypes.create_string_buffer(b'aaa')
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try:
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with open("/proc/self/mem", "rb") as fp:
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fp.seek(ctypes.addressof(buf))
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return fp.read(3) == b'aaa'
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except OSError:
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return False
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def run_test():
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"""Run through the tests one by one"""
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if not probe_proc_self_mem:
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print("SKIP: /proc/self/mem is not usable")
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exit(0)
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gdb.Breakpoint("break_here")
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gdb.execute("continue")
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val = gdb.parse_and_eval("*(char[2] *)q").string()
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report(val == "42", "{} == 42".format(val))
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gdb.execute("set *(char[3] *)q = \"24\"")
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gdb.execute("continue")
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exitcode = int(gdb.parse_and_eval("$_exitcode"))
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report(exitcode == 0, "{} == 0".format(exitcode))
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main(run_test)
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