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| author | Alex Bennée <alex.bennee@linaro.org> | 2021-02-13 13:03:23 +0000 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2021-02-18 08:19:23 +0000 |
| commit | 36fc4a2fa4c788381918e8c6815ae2d73957847d (patch) | |
| tree | 1ff509867ea23ef1fff83a397ea07a2f3c895307 /tests | |
| parent | cfd405eae6ad7a0e20b006e3295c5e8edab3ce3f (diff) | |
| download | qemu-36fc4a2fa4c788381918e8c6815ae2d73957847d.zip qemu-36fc4a2fa4c788381918e8c6815ae2d73957847d.tar.gz qemu-36fc4a2fa4c788381918e8c6815ae2d73957847d.tar.bz2 | |
tests/acceptance: add a new tests to detect counting errors
The insn plugin has a simple heuristic to detect if an instruction is
detected running twice in a row. Check the plugin log after the run
and pass accordingly.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210213130325.14781-22-alex.bennee@linaro.org>
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/acceptance/tcg_plugins.py | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/tests/acceptance/tcg_plugins.py b/tests/acceptance/tcg_plugins.py index adec40d..b1ba104 100644 --- a/tests/acceptance/tcg_plugins.py +++ b/tests/acceptance/tcg_plugins.py @@ -89,3 +89,29 @@ class PluginKernelNormal(PluginKernelBase): m = re.search(br"insns: (?P<count>\d+)", s) if "count" not in m.groupdict(): self.fail("Failed to find instruction count") + + def test_aarch64_virt_insn_icount(self): + """ + :avocado: tags=accel:tcg + :avocado: tags=arch:aarch64 + :avocado: tags=machine:virt + :avocado: tags=cpu:cortex-a57 + """ + kernel_path = self._grab_aarch64_kernel() + kernel_command_line = (self.KERNEL_COMMON_COMMAND_LINE + + 'console=ttyAMA0') + console_pattern = 'Kernel panic - not syncing: VFS:' + + plugin_log = tempfile.NamedTemporaryFile(mode="r+t", prefix="plugin", + suffix=".log") + + self.run_vm(kernel_path, kernel_command_line, + "tests/plugin/libinsn.so", plugin_log.name, + console_pattern, + args=('-cpu', 'cortex-a53', '-icount', 'shift=1')) + + with plugin_log as lf, \ + mmap.mmap(lf.fileno(), 0, access=mmap.ACCESS_READ) as s: + m = re.search(br"detected repeat execution @ (?P<addr>0x[0-9A-Fa-f]+)", s) + if m is not None and "addr" in m.groupdict(): + self.fail("detected repeated instructions") |