mirror of
https://github.com/andreas-abel/nanoBench.git
synced 2025-12-13 10:10:04 +01:00
92 lines
2.4 KiB
Bash
Executable File
92 lines
2.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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if [ "$EUID" -ne 0 ]; then
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echo "Error: nanoBench requires root privileges" 1>&2
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echo "Try \"sudo ./nanoBench-asm.sh ...\"" 1>&2
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exit 1
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fi
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if ! command -v rdmsr &>/dev/null; then
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echo "Error: nanoBench requires msr-tools"
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echo "Install with \"sudo apt install msr-tools\""
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exit 1
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fi
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debug=false
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for p in "$@"; do
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if [[ "$p" == -d* ]]; then
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debug=true
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fi
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done
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args=''
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while [ "$2" ]; do
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if [[ "$1" == -asm_i* ]]; then
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echo ".intel_syntax noprefix" > asm-init.s
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echo "$2" >> asm-init.s
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as asm-init.s -o asm-init.o || exit
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objcopy asm-init.o -O binary asm-init.bin
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args="$args -code_init asm-init.bin"
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shift 2
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elif [[ "$1" == -asm_o* ]]; then
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echo ".intel_syntax noprefix" > asm-one-time-init.s
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echo "$2" >> asm-one-time-init.s
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as asm-one-time-init.s -o asm-one-time-init.o || exit
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objcopy asm-one-time-init.o -O binary asm-one-time-init.bin
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args="$args -code_one_time_init asm-one-time-init.bin"
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shift 2
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elif [[ "$1" == -as* ]]; then
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echo ".intel_syntax noprefix" > asm-code.s
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echo "$2" >> asm-code.s
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as asm-code.s -o asm-code.o || exit
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objcopy asm-code.o -O binary asm-code.bin
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args="$args -code asm-code.bin"
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shift 2
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else
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args="$args $1"
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shift
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fi
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done
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args="$args $1"
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set "$args"
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prev_rdpmc=$(cat /sys/bus/event_source/devices/cpu/rdpmc)
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echo 2 > /sys/bus/event_source/devices/cpu/rdpmc || exit
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modprobe --first-time msr &>/dev/null
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msr_prev_loaded=$?
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# (Temporarily) disable watchdogs, see https://github.com/obilaniu/libpfc
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! modprobe --first-time -r iTCO_wdt &>/dev/null
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iTCO_wdt_prev_loaded=$?
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! modprobe --first-time -r iTCO_vendor_support &>/dev/null
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iTCO_vendor_support_prev_loaded=$?
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prev_nmi_watchdog=$(cat /proc/sys/kernel/nmi_watchdog)
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echo 0 > /proc/sys/kernel/nmi_watchdog
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if [ "$debug" = true ]; then
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gdb -ex=run --args user/nanoBench $@
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else
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user/nanoBench $@
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fi
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rm -f asm-code.*
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rm -f asm-init.*
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echo $prev_rdpmc > /sys/bus/event_source/devices/cpu/rdpmc
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echo $prev_nmi_watchdog > /proc/sys/kernel/nmi_watchdog
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if [[ $msr_prev_loaded == 0 ]]; then
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modprobe -r msr
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fi
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if [[ $iTCO_wdt_prev_loaded != 0 ]]; then
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modprobe iTCO_wdt &>/dev/null
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fi
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if [[ $iTCO_vendor_support_prev_loaded != 0 ]]; then
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modprobe iTCO_vendor_support &>/dev/null
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fi
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