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trace2line: gem5 support

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As noted however, it is potentially too slow to be useful.

run: unify gem5 and qemu tracing under -T

readme: overhaul tracing documentation from what I've learnt from trace2line
This commit is contained in:
Ciro Santilli
2018-04-25 08:41:41 +01:00
parent 14965a40d2
commit ab21ef58de
8 changed files with 131 additions and 50 deletions
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34
trace-boot
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@@ -2,22 +2,30 @@
set -eu
. common
set -- ${cli_trace_boot:-} "$@"
while getopts a: OPT; do
while getopts a:g OPT; do
case "$OPT" in
a)
arch="$OPTARG"
;;
g)
gem5=true
;;
esac
done
set_common_vars "$arch" false
time ./run -a "$arch" -e 'init=/poweroff.out' -T exec_tb
time ./qemu-trace2txt -a "$arch"
# 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 "instructions $(wc -l "${qemu_trace_txt_file}" | cut -d' ' -f1)"
entry_addr=$("${root_dir}/runtc" readelf -h "${build_dir}/linux-custom/vmlinux" | grep 'Entry point address' | sed -E 's/.*: *//')
echo "entry_address ${entry_addr}"
sed "/${entry_addr}/q" "${qemu_trace_txt_file}" >"${qemu_out_dir}/trace-boot.txt"
echo "instructions_firmware $(wc -l "${qemu_out_dir}/trace-boot.txt" | cut -d' ' -f1)"
shift "$(($OPTIND - 1))"
set_common_vars "$arch" "$gem5"
if "$gem5"; then
# Exactly what Exec enabled, but without ExecSymbol and ExecMicro.
time ./run -a aarch64 -E 'm5 exit' -g -T 'ExecEnable,ExecTicks,ExecOpClass,ExecThread,ExecEffAddr,ExecResult,ExecMacro,ExecFaulting,ExecUser,ExecKernel' "$@"
else
time ./run -a "$arch" -e 'init=/poweroff.out' -T exec_tb "$@"
time ./qemu-trace2txt -a "$arch"
# 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 "instructions $(wc -l "${common_trace_txt_file}" | cut -d' ' -f1)"
entry_addr=$("${root_dir}/runtc" readelf -h "${build_dir}/linux-custom/vmlinux" | grep 'Entry point address' | sed -E 's/.*: *//')
echo "entry_address ${entry_addr}"
sed "/${entry_addr}/q" "${common_trace_txt_file}" >"${qemu_out_dir}/trace-boot.txt"
echo "instructions_firmware $(wc -l "${qemu_out_dir}/trace-boot.txt" | cut -d' ' -f1)"
fi