mirror of
https://github.com/cirosantilli/linux-kernel-module-cheat.git
synced 2026-01-26 03:31:36 +01:00
47 lines
1.7 KiB
Python
Executable File
47 lines
1.7 KiB
Python
Executable File
#!/usr/bin/env python3
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import imp
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import os
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import subprocess
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import re
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import common
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run = imp.load_source('run', os.path.join(common.root_dir, 'run'))
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qemu_trace2txt = imp.load_source('qemu_trace2txt', os.path.join(common.root_dir, 'qemu-trace2txt'))
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parser = common.get_argparse(argparse_args={
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'description': '''Trace the PIC addresses executed on a Linux kernel boot.
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More information at: https://github.com/cirosantilli/linux-kernel-module-cheat#tracing
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'''
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})
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parser.add_argument(
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'extra_emulator_args', nargs='*',
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help='Extra options to append at the end of the emulator command line'
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)
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args = common.setup(parser)
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extra_args = {
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'extra_emulator_args': args.extra_emulator_args,
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}
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if args.gem5:
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extra_args.update({
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'eval': 'm5 exit',
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'trace': 'Exec,-ExecSymbol,-ExecMicro',
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})
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run.main(args, extra_args)
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else:
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extra_args.update({
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'kernel_cli_extra': 'init=/poweroff.out',
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'trace': 'exec_tb',
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})
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run.main(args, extra_args)
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qemu_trace2txt.main()
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## Instruction count.
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## We could put this on a separate script, but it just adds more arch boilerplate to a new script.
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## So let's just leave it here for now since it did not add a significant processing time.
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#echo "instructions $(wc -l "${common_trace_txt_file}" | cut -d' ' -f1)"
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#entry_addr=$("${common_root_dir}/runtc" readelf -h "${common_build_dir}/linux-custom/vmlinux" | grep 'Entry point address' | sed -E 's/.*: *//')
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#echo "entry_address ${entry_addr}"
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#sed "/${entry_addr}/q" "${common_trace_txt_file}" >"${common_qemu_run_dir}/trace-boot.txt"
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#echo "instructions_firmware $(wc -l "${common_qemu_run_dir}/trace-boot.txt" | cut -d' ' -f1)"
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