Files
linux-kernel-module-cheat/trace-boot
Ciro Santilli 01a84e7f79 OK, direct the annoying traces to the output folder
Otherwise it was getting messy to distinguish between trace-events
and trace-<pid> in the .gitignore.

Now only the latest trace will be kept, with a fixed name.
2018-03-28 23:09:01 +01:00

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#!/usr/bin/env bash
set -eu
. common
arch=x86_64
while getopts a: OPT; do
case "$OPT" in
a)
arch="$OPTARG"
;;
esac
done
set_common_vars "$arch" false
time ./run -a "$arch" -e 'init=/poweroff.out' -T exec_tb
time ./qemu/scripts/simpletrace.py "${out_dir}/build/host-qemu-custom/trace-events-all" "${lkmc_out_dir}/trace.bin" >"${lkmc_out_dir}/trace.txt"
# 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.
echo "instruction count all: $(wc -l "${lkmc_out_dir}/trace.txt" | cut -d' ' -f1)"
entry_addr=$("${out_dir}"/host/bin/*-buildroot-*-readelf -h "${out_dir}/build/linux-custom/vmlinux" | grep 'Entry point address' | sed -E 's/.*: *//')
echo "entry address: ${entry_addr}"
sed "/${entry_addr}/q" "${lkmc_out_dir}/trace.txt" >"${lkmc_out_dir}/trace-boot.txt"
echo "instruction count firmware: $(wc -l "${lkmc_out_dir}/trace-boot.txt" | cut -d' ' -f1)"