113 lines
3.0 KiB
Bash
113 lines
3.0 KiB
Bash
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#!/bin/bash
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if [[ $# -le 1 ]]; then
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echo "Usage: $0 <executable> [<addresses>] REFS..."
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exit 1
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fi
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target="$1"
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shift
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addresses=""
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if [[ -e "$1" ]]; then
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addresses="$1"
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shift
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fi
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# path to "us"
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# readlink -f, but more portable:
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dirname=$(perl -e 'use Cwd "abs_path";print abs_path(shift)' "$(dirname "$0")")
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# https://stackoverflow.com/a/2358432/472927
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{
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# compile all refs
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pushd "$dirname" > /dev/null
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# if the user has some local changes, preserve them
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nstashed=$(git stash list | wc -l)
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echo "==> Stashing any local modifications"
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git stash --keep-index > /dev/null
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popstash() {
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# https://stackoverflow.com/q/24520791/472927
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if [[ "$(git stash list | wc -l)" -ne "$nstashed" ]]; then
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echo "==> Restoring stashed state"
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git stash pop > /dev/null
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fi
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}
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# if the user has added stuff to the index, abort
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if ! git diff-index --quiet HEAD --; then
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echo "Refusing to overwrite outstanding git changes"
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popstash
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exit 2
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fi
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current=$(git symbolic-ref --short HEAD)
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for ref in "$@"; do
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echo "==> Compiling $ref"
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git checkout -q "$ref"
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commit=$(git rev-parse HEAD)
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fn="target/release/addr2line-$commit"
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if [[ ! -e "$fn" ]]; then
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cargo build --release --example addr2line
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cp target/release/examples/addr2line "$fn"
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fi
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if [[ "$ref" != "$commit" ]]; then
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ln -sfn "addr2line-$commit" target/release/addr2line-"$ref"
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fi
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done
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git checkout -q "$current"
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popstash
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popd > /dev/null
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# get us some addresses to look up
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if [[ -z "$addresses" ]]; then
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echo "==> Looking for benchmarking addresses (this may take a while)"
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addresses=$(mktemp tmp.XXXXXXXXXX)
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objdump -C -x --disassemble -l "$target" \
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| grep -P '0[048]:' \
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| awk '{print $1}' \
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| sed 's/:$//' \
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> "$addresses"
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echo " -> Addresses stored in $addresses; you should re-use it next time"
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fi
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run() {
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func="$1"
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name="$2"
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cmd="$3"
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args="$4"
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printf "%s\t%s\t" "$name" "$func"
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if [[ "$cmd" =~ llvm-symbolizer ]]; then
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/usr/bin/time -f '%e\t%M' "$cmd" $args -obj="$target" < "$addresses" 2>&1 >/dev/null
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else
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/usr/bin/time -f '%e\t%M' "$cmd" $args -e "$target" < "$addresses" 2>&1 >/dev/null
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fi
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}
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# run without functions
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log1=$(mktemp tmp.XXXXXXXXXX)
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echo "==> Benchmarking"
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run nofunc binutils addr2line >> "$log1"
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#run nofunc elfutils eu-addr2line >> "$log1"
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run nofunc llvm-sym llvm-symbolizer -functions=none >> "$log1"
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for ref in "$@"; do
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run nofunc "$ref" "$dirname/target/release/addr2line-$ref" >> "$log1"
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done
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cat "$log1" | column -t
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# run with functions
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log2=$(mktemp tmp.XXXXXXXXXX)
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echo "==> Benchmarking with -f"
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run func binutils addr2line "-f -i" >> "$log2"
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#run func elfutils eu-addr2line "-f -i" >> "$log2"
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run func llvm-sym llvm-symbolizer "-functions=linkage -demangle=0" >> "$log2"
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for ref in "$@"; do
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run func "$ref" "$dirname/target/release/addr2line-$ref" "-f -i" >> "$log2"
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done
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cat "$log2" | column -t
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cat "$log2" >> "$log1"; rm "$log2"
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echo "==> Plotting"
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Rscript --no-readline --no-restore --no-save "$dirname/bench.plot.r" < "$log1"
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echo "==> Cleaning up"
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rm "$log1"
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exit 0
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}
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