55 lines
2.0 KiB
Python
55 lines
2.0 KiB
Python
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import os
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import infra.basetest
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class TestTraceCmd(infra.basetest.BRTest):
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# A specific configuration is needed for testing trace-cmd.
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# The function tracer need to be enabled in the Kernel.
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kern_fragment = \
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infra.filepath("tests/package/test_trace_cmd/linux-ftrace.fragment")
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config = \
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f"""
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BR2_aarch64=y
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BR2_TOOLCHAIN_EXTERNAL=y
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BR2_TARGET_GENERIC_GETTY_PORT="ttyAMA0"
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BR2_LINUX_KERNEL=y
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BR2_LINUX_KERNEL_CUSTOM_VERSION=y
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BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.1.74"
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BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
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BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/aarch64-virt/linux.config"
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BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="{kern_fragment}"
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BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
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BR2_PACKAGE_TRACE_CMD=y
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BR2_TARGET_ROOTFS_CPIO=y
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BR2_TARGET_ROOTFS_CPIO_GZIP=y
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# BR2_TARGET_ROOTFS_TAR is not set
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"""
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def test_run(self):
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img = os.path.join(self.builddir, "images", "rootfs.cpio.gz")
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kern = os.path.join(self.builddir, "images", "Image")
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self.emulator.boot(arch="aarch64",
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kernel=kern,
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kernel_cmdline=["console=ttyAMA0"],
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options=["-M", "virt",
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"-cpu", "cortex-a57",
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"-m", "256M",
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"-initrd", img])
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self.emulator.login()
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# Record calls to kmalloc() from a simple command.
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self.assertRunOk("trace-cmd record -e kmalloc ls -l /")
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# Show information about the trace.dat file.
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self.assertRunOk("trace-cmd dump")
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# Generate a text report of the trace.
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self.assertRunOk("trace-cmd report > trace.txt")
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# Check we have occurrences of "kmalloc:" in the trace report.
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cmd = "grep -Fc kmalloc: trace.txt"
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output, exit_code = self.emulator.run(cmd)
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self.assertEquals(exit_code, 0)
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self.assertTrue(int(output[0]) > 0)
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