mirror of
https://github.com/cirosantilli/linux-kernel-module-cheat.git
synced 2026-01-13 20:12:26 +00:00
56738a1c70
Unsquashed version at v2-rc-unsquashed, but that cannot be merged as it breaks bisects at several points. All bugs will not bisect to this humongous change. It all started with a conversion of the Bash scripts to Python, mainly because I couldn't stand not being able to properly use --options for run which has a million options. Then since that required a full testing, I decided to do all the refactorings that I had in mind at once, and so I did and it became v2-rc. This is the largest patch I have ever done! OMG a few weeks of extra time. I'm never writing a Bash script for anything that starts getting big again. Some of the features are: * separate build-qemu and build-gem5 commands * common: convert scripts to python. Add --option for everything * rename build to build-buildroot now that we are splitting all the build commands, Linux kernel to follow * move all git submodules to submodules/ and all buildroot packages to packages/ * refactor the out/ structure. Keep projects on toplevel, because guest projects separate archs and host ones don't, making a toplevel arch wrong * do-release: rename to just release https://stackoverflow.com/questions/16174992/cant-get-argparse-to-read-quoted-string-with-dashes-in-it * run: add --terminal and explain gem5 pdb * just track the lvimrc * store CLI kernel config fragment inside buildlroot to avoid conflicts * gem5: document m5 initparam * readme: make a bunch of things awesomer * readme: fix broken refs * parsec-benchmark: update to 75d55ac446a43c47efb1044844a108c6c330184c Could not fetch otherwise. * gem5: M5_OVERRIDE_PY_SOURCE
64 lines
1.8 KiB
Python
Executable File
64 lines
1.8 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
|
|
import imp
|
|
import os
|
|
import subprocess
|
|
import re
|
|
|
|
import common
|
|
run = imp.load_source('run', os.path.join(common.root_dir, 'run'))
|
|
qemu_trace2txt = imp.load_source('qemu_trace2txt', os.path.join(common.root_dir, 'qemu-trace2txt'))
|
|
|
|
parser = common.get_argparse(argparse_args={
|
|
'description': '''Trace the PIC addresses executed on a Linux kernel boot.
|
|
|
|
More information at: https://github.com/cirosantilli/linux-kernel-module-cheat#tracing
|
|
'''
|
|
})
|
|
parser.add_argument(
|
|
'extra_emulator_args', nargs='*',
|
|
help='Extra options to append at the end of the emulator command line'
|
|
)
|
|
args = common.setup(parser)
|
|
extra_args = {
|
|
'extra_emulator_args': args.extra_emulator_args,
|
|
}
|
|
if args.gem5:
|
|
extra_args.update({
|
|
'eval': 'm5 exit',
|
|
'trace': 'Exec,-ExecSymbol,-ExecMicro',
|
|
})
|
|
run.main(args, extra_args)
|
|
else:
|
|
extra_args.update({
|
|
'kernel_cli_extra': 'init=/poweroff.out',
|
|
'trace': 'exec_tb',
|
|
})
|
|
run.main(args, extra_args)
|
|
qemu_trace2txt.main()
|
|
# Instruction count.
|
|
# We could put this on a separate script, but it just adds more arch boilerplate to a new script.
|
|
# So let's just leave it here for now since it did not add a significant processing time.
|
|
kernel_entry_addr = hex(common.get_elf_entry(common.vmlinux))
|
|
nlines = 0
|
|
nlines_firmware = 0
|
|
with open(common.qemu_trace_txt_file, 'r') as trace_file:
|
|
in_firmware = True
|
|
for line in trace_file:
|
|
line = line.rstrip()
|
|
nlines += 1
|
|
pc = line.split('=')[-1]
|
|
if pc == kernel_entry_addr:
|
|
in_firmware = False
|
|
if in_firmware:
|
|
nlines_firmware += 1
|
|
print('''\
|
|
instructions {}
|
|
entry_address {}
|
|
instructions_firmware {}\
|
|
'''.format(
|
|
nlines,
|
|
kernel_entry_addr,
|
|
nlines_firmware
|
|
))
|