#!/bin/bash# perf annotate basic tests# SPDX-License-Identifier: GPL-2.0 set -e shelldir=$(dirname "$0") # shellcheck source=lib/perf_has_symbol.sh. "${shelldir}"/lib/perf_has_symbol.sh testsym="noploop" skip_test_missing_symbol ${testsym} err=0perfdata=$(mktemp /tmp/__perf_test.perf.data.XXXXX)perfout=$(mktemp /tmp/__perf_test.perf.out.XXXXX)testprog="perf test -w noploop"# disassembly format: "percent : offset: instruction (operands ...)"disasm_regex="[0-9]*\.[0-9]* *: *\w*: *\w*" cleanup() {  rm -rf "${perfdata}" "${perfout}"  rm -rf "${perfdata}".old   trap - EXIT TERM INT} trap_cleanup() {  echo "Unexpected signal in ${FUNCNAME[1]}"  cleanup  exit 1}trap trap_cleanup EXIT TERM INT test_basic() {  mode=$1  echo "${mode} perf annotate test"  if [ "x${mode}" == "xBasic" ]  then    perf record -o "${perfdata}" ${testprog} 2> /dev/null  else    perf record -o - ${testprog} 2> /dev/null > "${perfdata}"  fi  if [ "x$?" != "x0" ]  then    echo "${mode} annotate [Failed: perf record]"    err=1    return  fi   # Generate the annotated output file  if [ "x${mode}" == "xBasic" ]  then    perf annotate --no-demangle -i "${perfdata}" --stdio --percent-limit 10 2> /dev/null > "${perfout}"  else    perf annotate --no-demangle -i - --stdio 2> /dev/null --percent-limit 10 < "${perfdata}" > "${perfout}"  fi   # check if it has the target symbol  if ! grep -q "${testsym}" "${perfout}"  then    echo "${mode} annotate [Failed: missing target symbol]"    cat "${perfout}"    err=1    return  fi   # check if it has the disassembly lines  if ! grep -q "${disasm_regex}" "${perfout}"  then    echo "${mode} annotate [Failed: missing disasm output from default disassembler]"    err=1    return  fi   # check again with a target symbol name  if [ "x${mode}" == "xBasic" ]  then    perf annotate --no-demangle -i "${perfdata}" "${testsym}" 2> /dev/null > "${perfout}"  else    perf annotate --no-demangle -i - "${testsym}" 2> /dev/null < "${perfdata}" > "${perfout}"  fi   if ! head -250 "${perfout}"| grep -q -m 3 "${disasm_regex}"  then    echo "${mode} annotate [Failed: missing disasm output when specifying the target symbol]"    err=1    return  fi   # check one more with external objdump tool (forced by --objdump option)  if [ "x${mode}" == "xBasic" ]  then    perf annotate --no-demangle -i "${perfdata}" --percent-limit 10 --objdump=objdump 2> /dev/null > "${perfout}"  else    perf annotate --no-demangle -i - "${testsym}" --percent-limit 10 --objdump=objdump 2> /dev/null < "${perfdata}" > "${perfout}"  fi  if ! grep -q -m 3 "${disasm_regex}" "${perfout}"  then    echo "${mode} annotate [Failed: missing disasm output from non default disassembler (using --objdump)]"    err=1    return  fi  echo "${mode} annotate test [Success]"} test_basic Basictest_basic Pipe cleanupexit $err