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t4p4s.sh
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t4p4s.sh
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#!/bin/bash
STARTPWD=$(pwd)
[ "${T4P4S_TRACE}" != "" ] && export PS4='trace>:`date +%s.%N`:$0:line $LINENO:' && mkdir -p "./build" && exec 321>"./build/trace.log" && BASH_XTRACEFD=321 && set -x
declare -A KNOWN_COLOURS
declare -A OPTS
declare -A IGNORE_OPTS
PYTHON_PARSE_HELPER_PROCESS=""
ERRCODE_OK=0
ERRCODE_MODEL_NOT_FOUND=10
ERRCODE_COMPILE_MESON=1
ERRCODE_COMPILE_C=2
ERRCODE_COMPILE_P4=3
ERRCODE_COMPILER_NOT_FOUND=9
ERRCODE_LOOP=4
ERRCODE_DROP_SEND=5
ERRCODE_WRONG_OUTPUT=6
ERRCODE_CFLOW_REQ=7
ERRCODE_UNSET_EGRESS_PORT=11
ERRCODE_NOMEM=8
ERRCODE_SEGFAULT=139
ERRCODE_INTERRUPT=254
ERRCODE_ERROR=255
EXAMPLES_DIR=${EXAMPLES_DIR-./examples}
# --------------------------------------------------------------------
# Show customisable environment values in this file
if [ $# == 1 ] && [ "$1" == "showenvs" ]; then
escape_char=$(printf '\033')
colours=([0]="${escape_char}[1;32m" [1]="${escape_char}[1;33m" [2]="${escape_char}[1;31m")
nn="${escape_char}[0m"
echo "The ${colours[0]}$0$nn script uses the following ${colours[1]}default values$nn for ${colours[0]}environment variables$nn."
cat t4p4s.sh | grep -e '\([A-Z_]*\)=[$][{]\1-' | sed "s/[ ]*\([^=]*\)=[$][{]\1-\(.*\)[}]$/ ${colours[0]}\1$nn=${colours[1]}\2$nn/"
echo "Override them like this to customise the script's behaviour."
echo " ${colours[0]}EXAMPLES_CONFIG_FILE$nn=${colours[1]}my_config.cfg$nn ${colours[0]}$0$nn ${colours[1]}:my_p4$nn"
echo " ${colours[0]}EXAMPLES_CONFIG_FILE$nn=${colours[1]}my_config.cfg$nn ${colours[0]}COLOURS_CONFIG_FILE$nn=${colours[1]}my_favourite_colours.cfg$nn ${colours[0]}$0$nn ${colours[1]}%my_p4 dbg verbose p4testcase=1$nn"
exit
fi
# --------------------------------------------------------------------
# Helper functions
exit_program() {
[ "${T4P4S_TRACE}" != "" ] && set +x
echo -e "$nn"
[ "${OPTS[ctr]}" != "" ] && verbosemsg "(Terminating controller $(cc 0)dpdk_${OPTS[ctr]}_controller$nn)" && sudo killall -q "dpdk_${OPTS[ctr]}_controller"
[ "${PYTHON_PARSE_HELPER_PROCESS}" != "" ] && verbosemsg "(Terminating the $(cc 0)parse helper process$nn, port $(cc 1)$PYTHON_PARSE_HELPER_PORT$nn, pid $(cc 1)$PYTHON_PARSE_HELPER_PROCESS$nn)" && (echo "exit_parse_helper" | netcat localhost "${PYTHON_PARSE_HELPER_PORT}")
[ "$1" != "" ] && errmsg "$(cc 3)Error$nn: $*"
exit $ERROR_CODE
}
verbosemsg() {
[ "$(optvalue verbose)" != off ] && msg "$@"
return 0
}
msg() {
[ "$(optvalue silent)" != off ] && return
for msgvar in "$@"; do
echo -e "$msgvar"
done
}
errmsg() {
for msgvar in "$@"; do
(>&2 echo -e "$msgvar")
done
}
exit_on_error() {
ERROR_CODE=$1
[ "$ERROR_CODE" == "0" ] && return
[ "$ERROR_CODE" == "" ] && return
exit_program "$2 (error code: $(cc 2)$ERROR_CODE$nn)"
}
array_contains() {
local value=$1
shift
for ((i=1;i <= $#;i++)) {
[ "${!i}" == "${value}" ] && echo "y" && return
}
echo "n"
}
# Return the first valid colour code in the args, or the neutral colour if no valid colour is found.
cc() {
[ "$(array_contains "${OPTS[bw]}" "on" "terminal")" == y ] && echo "$nn" && return
while [ $# -gt 0 ]; do
[ "${colours[$1]}" != "" ] && echo "${colours[$1]}" && return
shift
done
echo "$nn"
}
get_current_envs() {
( set -o posix ; set ) | grep -v "PYTHON_PARSE_HELPER_PROCESS" | tr '\n' '\r' | sed "s/\r[^=]*='[^']*\r[^\r]*'\r/\r/g" | tr '\r' '\n'
}
print_cmd_opts() {
IFS=' ' read -r -a cflags <<< "$1"
NEXT_IS_OPT=0
for cflag in ${cflags[@]}; do
[ $NEXT_IS_OPT -eq 1 ] && NEXT_IS_OPT=0 && echo "$(cc 1)${cflag}$nn" && continue
IFS='=' read -r -a parts <<< "$cflag"
KNOWN_OPT_FLAGS=(-g --p4v -U --log-level -c -n --config -p)
[ "$(array_contains "${parts[0]}" "${KNOWN_OPT_FLAGS[@]}")" == y ] && NEXT_IS_OPT=1
OPTTXT1=${parts[0]}
OPTTXT2=""
OPTTXT3=""
OPTTXT4=""
[[ "${parts[0]}" == -* ]] && OPTTXT1="-" && OPTTXT3=${parts[0]##-}
[[ "${parts[0]}" == -D* ]] && OPTTXT1="-D" && OPTTXT3=${parts[0]##-D}
[[ "${parts[0]}" == --* ]] && OPTTXT1="--" && OPTTXT3=${parts[0]##--}
[[ "${parts[0]}" == *.p4* ]] && OPTTXT1="${parts[0]%/*}/" && OPTTXT2="${parts[0]##*/}" && OPTTXT2="${OPTTXT2%%.p4*}" && OPTTXT4=".${parts[0]##*.}"
echo "$(cc 0)$OPTTXT1$(cc 1)$OPTTXT2$nn$(cc 2)$OPTTXT3$nn${parts[1]+=$(cc 1)${parts[1]}}$(cc 2 0)$OPTTXT4$nn$nn"
done | tr '\n' ' '
}
print_opts() {
declare -A all_opts
for k in "${!OPTS[@]}" "${!IGNORE_OPTS[@]}"; do
all_opts[$k]=1
done
valuesList=$(for optid in ${!all_opts[@]}; do
[[ $optid = [A-Z]*_* ]] && continue
PREFIX="$(cc 0)"
[ "${OPTS[$optid]}" == "on" ] && PREFIX="$(cc 2)"
[ "${IGNORE_OPTS[$optid]}" == "on" ] && PREFIX="$(cc 3 2)^"
[ "${OPTS[$optid]}" != "" -a "${OPTS[$optid]}" != "on" ] && echo "$PREFIX$optid$nn=$(cc 1)${OPTS[$optid]}$nn" && continue
echo "$PREFIX$optid$nn"
done | sort)
if [ "$(optvalue verbose)" == "lines" ]; then
echo "\n$valuesList"
else
echo $valuesList | tr '\n' ', '
fi
}
setopt() {
[ "${OPTS["$1"]}" == "off" ] && echo -e "Option ${OPTS["$1"]} is set to be ignored" && return
OPTS[$1]="$2"
}
# $1: the option name, $2: the option value, $3: separator
addopt() {
OPTS[$1]="${OPTS[$1]:+${OPTS[$1]}$3}${2}"
}
optvalue() {
[ "${IGNORE_OPTS["$1"]}" != "" ] && echo "off" && return
[ "${OPTS[$1]}" == "" ] && echo "off" && return
echo "${OPTS[$1]}"
}
ctrl_c_handler() {
(>&2 echo -e "\nInterrupted, exiting...")
ERROR_CODE=254
exit_program
}
trap 'ctrl_c_handler' INT
# Set lit terminal text to colour indicated by `$1`.
set_term_light() {
OPTS[light]=$1
colours=()
[ "$1" == "0" ] && nn="" && return
IFS=',' read -r -a optparts <<< "$1"
for i in "${!optparts[@]}"; do
COLOUR=${optparts[$i]}
COLOUR=${KNOWN_COLOURS[$COLOUR]-$COLOUR}
colours[$i]="\033[${COLOUR}m"
done
nn="\033[0m"
}
remove_name_markers() {
[[ "$1" == \?\?* ]] && echo "${1#\?\?}" && return
[[ "$1" == \?* ]] && echo "${1#\?}" && return
[[ "$1" == \@* ]] && echo "${1#\@}" && return
[[ "$1" == \** ]] && echo "${1#\*}" && return
echo "$1"
}
# --------------------------------------------------------------------
# from $RTE_SDK/usertools/dpdk-setup.py
remove_mnt_huge()
{
grep -s '/mnt/huge' /proc/mounts > /dev/null
if [ $? -eq 0 ] ; then
sudo umount /mnt/huge
fi
if [ -d /mnt/huge ] ; then
sudo rm -R /mnt/huge
fi
}
# from $RTE_SDK/usertools/dpdk-setup.py
clear_huge_pages()
{
echo > .echo_tmp
for d in /sys/devices/system/node/node? ; do
echo "echo 0 > $d/hugepages/hugepages-${HUGEPGSZ}/nr_hugepages" >> .echo_tmp
done
sudo sh .echo_tmp
rm -f .echo_tmp
remove_mnt_huge
}
# from $RTE_SDK/usertools/dpdk-setup.py
create_mnt_huge()
{
sudo mkdir -p /mnt/huge
grep -s '/mnt/huge' /proc/mounts > /dev/null
if [ $? -ne 0 ] ; then
sudo mount -t hugetlbfs nodev /mnt/huge
fi
}
change_hugepages() {
[ "$(optvalue hugepages)" == keep ] && return
HUGEPGSZ=`cat /proc/meminfo | grep Hugepagesize | cut -d : -f 2 | tr -d ' '`
HUGE_FORMULA=`echo $HUGEPGSZ | sed -e 's/kB//' | sed -e 's/MB/*1024/' | sed -e 's/GB/*1024*1024/'`
OLD_HUGEPAGES=`cat /sys/kernel/mm/hugepages/hugepages-${HUGEPGSZ}/nr_hugepages`
[ "$(optvalue hugepages)" == "off" ] && [ "$(optvalue hugemb)" != "off" ] && OPTS[hugepages]=$(($(optvalue hugemb)*1024/($HUGE_FORMULA) + (($(optvalue hugemb)*1024%($HUGE_FORMULA) > 0))))
[ "$(optvalue hugepages)" == "off" ] && verbosemsg "Amount of required hugepages not given, no change made" && return
HUGE_UNIT=kB
HUGE_KB=$(($HUGE_FORMULA*OPTS[hugepages]))
HUGE_AMOUNT=$HUGE_KB
[ "$(($HUGE_KB % 1024))" -eq 0 ] && HUGE_UNIT=MB && HUGE_AMOUNT=$(($HUGE_KB / 1024))
[ "$(($HUGE_KB % 1048576))" -eq 0 ] && HUGE_UNIT=GB && HUGE_AMOUNT=$(($HUGE_KB / 1048576))
if [ $OLD_HUGEPAGES -eq 0 ]; then
verbosemsg "Allocating $(cc 0)${OPTS[hugepages]}$nn hugepages ($(cc 0)$HUGE_AMOUNT$nn $HUGE_UNIT)"
elif [ $OLD_HUGEPAGES -lt ${OPTS[hugepages]} ]; then
verbosemsg "Increasing hugepage count from $(cc 1)$OLD_HUGEPAGES$nn to $(cc 0)${OPTS[hugepages]}$nn ($(cc 0)$HUGE_AMOUNT$nn $HUGE_UNIT)"
elif [ "$(optvalue hugeopt)" == exact ] && [ $OLD_HUGEPAGES -gt ${OPTS[hugepages]} ]; then
verbosemsg "Reducing hugepage count from $(cc 1)$OLD_HUGEPAGES$nn to $(cc 0)${OPTS[hugepages]}$nn ($(cc 0)$HUGE_AMOUNT$nn $HUGE_UNIT)"
elif [ $OLD_HUGEPAGES -eq ${OPTS[hugepages]} ]; then
verbosemsg "Keeping the previously reserved $(cc 0)$OLD_HUGEPAGES$nn hugepages ($(cc 0)$HUGE_AMOUNT$nn $HUGE_UNIT)"
return
else
verbosemsg "Keeping $(cc 0)$OLD_HUGEPAGES$nn hugepages which is more than the requested $(cc 0)${OPTS[hugepages]}$nn ($(cc 0)$HUGE_AMOUNT$nn $HUGE_UNIT)"
return
fi
clear_huge_pages
echo "echo ${OPTS[hugepages]} > /sys/kernel/mm/hugepages/hugepages-${HUGEPGSZ}/nr_hugepages" > .echo_tmp
sudo sh .echo_tmp
rm -f .echo_tmp
create_mnt_huge
NEW_HUGEPAGES=`cat /sys/kernel/mm/hugepages/hugepages-${HUGEPGSZ}/nr_hugepages`
[ $NEW_HUGEPAGES -lt ${OPTS[hugepages]} ] && exit_on_error "$ERRCODE_NOMEM" "Needed to reserve $(cc 0)${OPTS[hugepages]}$nn hugepages, got $(cc 3)only ${NEW_HUGEPAGES}$nn"
}
# --------------------------------------------------------------------
# /tmp/$1.tmp is a file that has some (generated) contents; $2/$1 may or may not exist
# Only (over)write $1 if the generated content differs from the existing one
overwrite_on_difference() {
cmp -s "/tmp/$1.tmp" "$2/$1"
[ "$?" -ne 0 ] && cp "/tmp/$1.tmp" "$2/$1"
sudo rm -f "/tmp/$1.tmp"
}
candidate_count() {
simple_count=$(find -L "$P4_SRC_DIR" -type f -name "$1.p4*" | wc -l)
if [ $simple_count -eq 1 ]; then
echo 1
else
echo $(find -L "$P4_SRC_DIR" -type f -regex ".*$1.*[.]p4\(_[0-9][0-9]*\)?" | wc -l)
fi
}
candidates() {
if [ $(candidate_count $1) -gt 0 ]; then
echo
find -L "$P4_SRC_DIR" -type f -regex ".*$1.*[.]p4\(_[0-9][0-9]*\)?" | sed 's#^.*/\([^\.]*\).*$# \1#g'
else
echo "(no candidates found)"
fi
}
# --------------------------------------------------------------------
# Set defaults
T4P4S_BUILD_DIR=${T4P4S_BUILD_DIR-"./build"}
mkdir -p ${T4P4S_BUILD_DIR}
ERROR_CODE=$ERRCODE_OK
COLOURS_CONFIG_FILE=${COLOURS_CONFIG_FILE-colours.cfg}
LIGHTS_CONFIG_FILE=${LIGHTS_CONFIG_FILE-lights.cfg}
EXAMPLES_CONFIG_FILE=${EXAMPLES_CONFIG_FILE-examples.cfg}
WARNING_LEVEL=${WARNING_LEVEL-0}
P4_SRC_DIR=${P4_SRC_DIR-"./examples/"}
CTRL_PLANE_DIR=${CTRL_PLANE_DIR-./src/hardware_dep/shared/ctrl_plane}
ARCH=${ARCH-dpdk}
ARCH_OPTS_FILE=${ARCH_OPTS_FILE-opts_${ARCH}.cfg}
colours[$i]="\033[${COLOUR}m"
CFGFILES=${CFGFILES-!cmdline!,!varcfg!${EXAMPLES_CONFIG_FILE},${ARCH_OPTS_FILE}}
declare -A OPTS=([cfgfiles]="$CFGFILES", [meson_opts]="")
mkdir -p build/tools
if [ ! -f "build/tools/${COLOURS_CONFIG_FILE}.sh" ]; then
cat ${COLOURS_CONFIG_FILE} | grep -ve "^[ \t]*;" | grep -ve "^[ \t]*$" | sed "s/COLOUR_\([^ \t]*\)[ \t]*\([^ \t]*\)/KNOWN_COLOURS[\\\"\1\\\"]=\\\"\2\\\"/" > "build/tools/${COLOURS_CONFIG_FILE}.sh"
cat ${COLOURS_CONFIG_FILE} | grep -ve "^[ \t]*;" | grep -ve "^[ \t]*$" | sed "s/COLOUR_\([^ \t]*\)[ \t]*\([^ \t]*\)/colours[\1]=\\\"\\\\033\[\2m\\\"/" >> "build/tools/${COLOURS_CONFIG_FILE}.sh"
cat ${COLOURS_CONFIG_FILE} | grep -ve "^[ \t]*;" | grep -ve "^[ \t]*$" | sed "s/\([^ \t]*\)[ \t]*\([^ \t]*\)/OPTS[\1]=\\\"\2\\\"/" >> "build/tools/${COLOURS_CONFIG_FILE}.sh"
fi
if [ ! -f "build/tools/${LIGHTS_CONFIG_FILE}.sh" ]; then
cat ${LIGHTS_CONFIG_FILE} | grep -ve "^[ \t]*;" | grep -ve "^[ \t]*$" | sed "s/\([^ \t]*\)[ \t]*\([^ \t]*\)/OPTS[\1]=\2/" > "build/tools/${LIGHTS_CONFIG_FILE}.sh"
echo "set_term_light `cat ${LIGHTS_CONFIG_FILE} | cat lights.cfg | grep -e "^light" | sed 's/^light[ \t]*\([^ \t]*\)/\1/'`" >> "build/tools/${LIGHTS_CONFIG_FILE}.sh"
fi
. build/tools/${COLOURS_CONFIG_FILE}.sh
. build/tools/${LIGHTS_CONFIG_FILE}.sh
find_tool() {
SEP=$1
shift
DEFAULT_TOOL=$1
T4P4S_TOOL_DIR="${T4P4S_BUILD_DIR}/tools"
mkdir -p "${T4P4S_TOOL_DIR}"
TOOL_FILE="${T4P4S_TOOL_DIR}/tool.${DEFAULT_TOOL}.txt"
[ -f "${TOOL_FILE}" ] && cat "${TOOL_FILE}" && return
for tool in $*; do
for candidate in `apt-cache search --names-only "^${tool}[\.\-]?[0-9]*$" | tr "." "-" | cut -f 1 -d " " | sort -t "-" -k 2,2nr | tr "\n" " " | tr "-" "$SEP"`; do
which $candidate >/dev/null
[ $? -eq 0 ] && echo $candidate | tee "${TOOL_FILE}" && return
done
which $tool >/dev/null
[ $? -eq 0 ] && echo $tool | tee "${TOOL_FILE}" && return
done
exit_on_error "$ERRCODE_COMPILER_NOT_FOUND" "Cannot not find $(cc 2)$tool$nn tool"
}
PYTHON3=${PYTHON3-$(find_tool "." python3)}
# note: it is used with sudo
MESON_CMD="$PYTHON3 -m mesonbuild.mesonmain"
MESON_BUILDTYPE=${MESON_BUILDTYPE-debugoptimized}
declare -A EXT_TO_VSN=(["p4"]=16 ["p4_14"]=14)
declare -A VSN_TO_EXT=([16]="p4" [14]="p4_14")
# --------------------------------------------------------------------
# Wait for 5 seconds or the availability of port $1, whichever comes first
wait_for_port_availability() {
for i in `seq 1 50`; do
[[ `sudo lsof -i:${1} | grep LISTEN | wc -l` -ne 0 ]] && break
sleep 0.1
done
}
find_ephemeral_port() {
CHOSEN_PORT=$(shuf -n 1 -i $1-$2)
while [ `sudo lsof -i -P -n | grep LISTEN | grep $CHOSEN_PORT | wc -l` -ne 0 ]; do CHOSEN_PORT=$(shuf -n 1 -i $1-$2); done
echo $CHOSEN_PORT
}
# Generating random ephemeral port
while
PYTHON_PARSE_HELPER_PORT=$(find_ephemeral_port 49152 65535)
netstat -atun | grep -q "$PYTHON_PARSE_HELPER_PORT"
do
continue
done
PYTHON_PARSE_HELPER=$(cat <<END
#!/usr/bin/env ${PYTHON}
import socket
import sys
import re
HOST = 'localhost'
PORT = int(sys.argv[1])
# To facilitate understanding, almost all named patterns of the regex are separated
patterns = (
("cond", '!condvar(=!condval)?!condsep'),
("prefix", '(\^|:|::|%|%%|@)'),
("condvar", '[a-zA-Z0-9_\-.]+'),
("condval", '[^\s].*'),
("condsep", '(\s*->\s*)'),
("letop", '\+{0,2}\??='),
("letval", '[^\s].*'),
("var", '[a-zA-Z0-9_\-.]+'),
("comment", '\s*(;.*)?'),
)
rexp = '^(!prefix|!cond?)?!var(?P<let>\s*!letop?\s*!letval)?!comment$'
# Assemble the full regex
for pattern, replacement in patterns:
rexp = rexp.replace("!" + pattern, "(?P<{}>{})".format(pattern, replacement))
rexp = re.compile(rexp)
with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
s.bind((HOST, PORT))
s.listen()
while True:
conn, addr = s.accept()
with conn:
bline = conn.recv(1024)
line = bline.decode()
if line.startswith("exit_parse_helper"):
sys.exit()
m = re.match(rexp, line)
is_ok = 'y' if m else 'n'
conn.sendall(f'ok {is_ok}\n'.encode())
for gname in (p[0] for p in patterns):
opt = '' if not m else m.group(gname) or ''
conn.sendall(f'{gname} {opt}\n'.encode())
END
)
$PYTHON3 -c "$PYTHON_PARSE_HELPER" "${PYTHON_PARSE_HELPER_PORT}" >&2>/dev/null &
PYTHON_PARSE_HELPER_PROCESS="$!"
unset PYTHON_PARSE_HELPER
wait_for_port_availability ${PYTHON_PARSE_HELPER_PORT}
# --------------------------------------------------------------------
# Set defaults
ALL_COLOUR_NAMES=(action async bytes control core default error expected extern field header headertype incoming off outgoing packet parserstate port queue smem socket status success table testcase warning)
# --------------------------------------------------------------------
# Set defaults
nn="\033[0m"
# Check if configuration is valid
[ "${P4C}" == "" ] && exit_program "\$P4C not defined"
[ "$ARCH" == "dpdk" ] && [ "${RTE_SDK}" == "" ] && exit_program "\$RTE_SDK not defined"
# --------------------------------------------------------------------
# Parse opts from files and command line
OPT_NOPRINTS=("OPT_NOPRINTS" "cfgfiles")
while [ "${OPTS[cfgfiles]}" != "" ]; do
IFS=',' read -r -a cfgfiles <<< "${OPTS[cfgfiles]}"
OPTS[cfgfiles]=""
for cfgfile in ${cfgfiles[@]}; do
declare -a NEWOPTS=()
# Collect option descriptions either from the command line or a file
if [ "$cfgfile" == "!cmdline!" ]; then
OPT_ORIGIN="$(cc 0)command line$nn"
for opt; do
NEWOPTS+=("$opt")
done
elif [[ $cfgfile =~ !varcfg!* ]]; then
OPT_ORIGIN="$(cc 0)variant config file$nn $(cc 1)${cfgfile#!varcfg!}$nn"
examplename="${OPTS[example]}@${OPTS[variant]}"
[ "${OPTS[variant]}" == "std" ] && examplename="${OPTS[example]}\(@std\)\?"
# determines model from test case file
MAYBE_TESTFILE=$(find -L "$EXAMPLES_DIR" -type f -name "test-${OPTS[example]##test-}.c")
if [ -f "$MAYBE_TESTFILE" ]; then
IFS=$'\n'
for testcase_row in `cat $MAYBE_TESTFILE | grep "&t4p4s_testcase_" | grep -ve "^[[:blank:]]*//" | sed -e "s/[[:blank:]]//g" | sed -e "s/[&{}\"]//g"`; do
testcase_in_file=`echo $testcase_row | cut -f1 -d,`
[ "$testcase_in_file" != "${OPTS[testcase]}" ] && continue
OPTS[model_by_testcase]=`echo $testcase_row | cut -f3 -d,`
break
done
fi
IFS=$'\n'
while read -r opts; do
IFS=' ' read -r -a optparts <<< "$opts"
for opt in ${optparts[@]}; do
if [[ $opt == @* ]]; then
collected_opts=""
# option can refers to another option in the same file
while read -r opts2; do
IFS=' ' read -r -a optparts2 <<< `echo $opts2 | sed -e "s/^$opt//g"`
# skip the first element, which is textually the same as $opt
for opt2 in ${optparts2[@]}; do
NEWOPTS+=("$opt2")
done
done < <(cat "${cfgfile#!varcfg!}" | grep -e "^$opt\s" | sed -e "s/^[^ \t]+[ \t]*//g")
else
NEWOPTS+=("$opt")
fi
done
done < <(cat "${cfgfile#!varcfg!}" | grep -e "^$examplename\s" | sed -e "s/^[^ \t]+[ \t]*//g")
else
OPT_ORIGIN="$(cc 0)file$nn $(cc 1)${cfgfile}$nn"
IFS=$'\n'
while read -r opt; do
NEWOPTS+=("$opt")
done < <(cat "${cfgfile}")
fi
verbosemsg "Parsing $OPT_ORIGIN"
# Process the options
for opt in ${NEWOPTS[@]}; do
if [[ "$opt" == *.p4* ]] && [ -f "$opt" ]; then
setopt example "$(basename ${opt%.*})"
setopt source "$opt"
continue
fi
# Split the option into its components along the above regex
unset groups
declare -A groups=()
IFS=' '
while read -r grpid grptxt; do groups["$grpid"]="$grptxt"; done < <(echo "$opt" | netcat localhost "${PYTHON_PARSE_HELPER_PORT}" | grep -ve "^$")
[ "${groups[ok]}" == n ] && [[ $opt = *\;* ]] && continue
[ "${groups[ok]}" == n ] && echo -e "Cannot parse option $(cc 0)$opt$nn (origin: $OPT_ORIGIN)" && continue
var="${groups[var]}"
[ "${groups[neg]}" != "" ] && OPTS[$var]=off && continue
if [ "${groups[cond]}" != "" ]; then
expected_value="${groups[condval]}"
[ "$(optvalue "${groups[condvar]}")" == off -a "$expected_value" != "off" ] && continue
[ "$expected_value" != "" -a "${OPTS[${groups[condvar]}]}" != "$expected_value" ] && continue
letval_cond=${groups[condvar]}
letval_value=$(optvalue ${groups[condvar]})
groups[letval]=`echo ${groups[letval]} | sed -e "s/[$][\{]${letval_cond}[\}]/${letval_value}/g"`
fi
value="${groups[letval]:-on}"
[[ $var == COLOUR_* ]] && KNOWN_COLOURS[${var#COLOUR_}]="$value"
[ "$var" == "light" ] && set_term_light "$value" && continue
[ "$var" == cfgfiles -a ! -f "$value" ] && echo -e "Config file $(cc 0)$value$nn cannot be found" && continue
if [ "$(array_contains "${groups[prefix]}" ":" "::" "%" "%%")" == y ]; then
FIND_COUNT=$(candidate_count "${var}")
[ $FIND_COUNT -gt 1 ] && exit_program "Name is not unique: found $(cc 1)$FIND_COUNT$nn P4 files for $(cc 0)${var}$nn, candidates: $(cc 1)$(candidates ${var})$nn"
[ $FIND_COUNT -eq 0 ] && exit_program "Could not find P4 file for $(cc 0)${var}$nn, candidates: $(cc 1)$(candidates ${var})$nn"
setopt example "$var"
P4_SRC_FILE="`find -L "$P4_SRC_DIR" -type f -regex ".*/${var}[.]p4\(_[0-9][0-9]*\)?"`"
setopt source "$P4_SRC_FILE"
fi
[ "${groups[prefix]}" == ":" ] && setopt example "$var" && continue
[ "${groups[prefix]}" == "::" ] && setopt example "$var" && setopt dbg on && continue
[ "${groups[prefix]}" == "%" ] && [ "$value" == "on" ] && verbosemsg "Test case not specified for example $(cc 0)$var$nn, using $(cc 1)test$nn as default" && value="test"
[ "${groups[prefix]}" == "%" ] && setopt example "$var" && setopt testcase "$value" && setopt variant test && continue
[ "${groups[prefix]}" == "%%" ] && [ "$value" == "on" ] && setopt example "$var" && setopt suite on && setopt dbg on && setopt variant test && continue
[ "${groups[prefix]}" == "%%" ] && setopt example "$var" && setopt testcase "$value" && setopt dbg on && setopt variant test && continue
# [ "${groups[prefix]}" == "@" ] && setopt variant "$var" && continue
[ "${groups[prefix]}" == "^" ] && IGNORE_OPTS["$var"]=on && continue
[ "${groups[letop]}" == "+=" ] && addopt "$var" "$value" " " && continue
[ "${groups[letop]}" == "++=" ] && addopt "$var" "$value" "\n" && continue
if [ "${groups[letop]}" == "?=" ]; then
[ "$(optvalue "$var")" == "off" ] && setopt "$var" "$value" "\n"
continue
fi
setopt "$var" "$value"
done
# Steps after processing the command line
if [ "$cfgfile" == "!cmdline!" ]; then
# The command line must specify an example to run
[ "$(optvalue example)" == off ] && exit_program "No example to run"
# The variant has to be determined before processing the config files.
[ "$(optvalue variant)" == off ] && setopt variant std
fi
done
done
verbosemsg "Parse port is $(cc 0)$PYTHON_PARSE_HELPER_PORT$nn"
[ "$(optvalue verbose)" == on ] && IGNORE_OPTS[silent]=on
[ "$(optvalue silent)" == on ] && IGNORE_OPTS[verbose]=on
[ "$(optvalue variant)" == off ] && [ "$(optvalue testcase)" != off -o "$(optvalue suite)" != off ] && setopt variant test && verbosemsg "Variant $(cc 1)@test$nn is chosen because testing is requested"
[ "${OPTS[variant]}" == "" -o "${OPTS[variant]}" == "-" ] && setopt variant std && verbosemsg "Variant $(cc 1)@std$nn is automatically chosen"
# Clean build dir if requested
if [ "$(optvalue redo)" == on ]; then
sudo rm -rf ${T4P4S_BUILD_DIR}
mkdir -p ${T4P4S_BUILD_DIR}
fi
# Make sure model is set
[ "$(optvalue model)" == off ] && exit_on_error "$ERRCODE_MODEL_NOT_FOUND" "Cannot find $(cc 2)model$nn (e.g. $(cc 1)v1model$nn or $(cc 1)psa$nn) for example $(cc 0)$(optvalue example)$nn"
# Determine version by extension if possible
if [ "${OPTS[vsn]}" == "" ]; then
P4_EXT="$(basename "${OPTS[source]}")"
P4_EXT=${P4_EXT##*.}
if [ "$(array_contains "${P4_EXT##*.}" ${!EXT_TO_VSN[@]})" == n ]; then
exit_program "Cannot determine P4 version for the extension $(cc 0)${P4_EXT}$nn of $(cc 0)$(print_cmd_opts "${OPTS[source]}")$nn"
fi
OPTS[vsn]="${EXT_TO_VSN["${P4_EXT##*.}"]}"
[ "${OPTS[vsn]}" == "" ] && exit_program "Cannot determine P4 version for $(cc 0)${OPTS[example]}$nn"
verbosemsg "P4 version is $(cc 0)${OPTS[vsn]}$nn (by the extension of $(cc 0)$(print_cmd_opts "${OPTS[source]}")$nn)"
fi
[ "$(optvalue testcase)" == off ] && OPTS[choice]=${T4P4S_CHOICE-${OPTS[example]}@${OPTS[variant]}}
[ "$(optvalue testcase)" != off ] && OPTS[choice]=${T4P4S_CHOICE-${OPTS[example]}@${OPTS[variant]}-$(optvalue testcase)}
T4P4S_COMPILE_DIR=${T4P4S_COMPILE_DIR-"${T4P4S_BUILD_DIR}/${OPTS[choice]}-${OPTS[model]}"}
T4P4S_TARGET_DIR="${T4P4S_BUILD_DIR}/last"
# a synonym of "last", this comes earliest alphabetically
T4P4S_AFTERMOST_DIR="${T4P4S_BUILD_DIR}/aftermost"
OPTS[executable]="$T4P4S_TARGET_DIR/build/${OPTS[example]}"
T4P4S_SRCGEN_DIR=${T4P4S_SRCGEN_DIR-"$T4P4S_TARGET_DIR/srcgen"}
T4P4S_GEN_INCLUDE_DIR="${T4P4S_SRCGEN_DIR}"
T4P4S_GEN_LIGHT="gen_light.h"
T4P4S_GEN_INCLUDE="gen_include.h"
T4P4S_GEN_DEFS="gen_defs.h"
T4P4S_GEN_MODEL="gen_model.h"
# By default use all three phases
if [ "$(optvalue p4)" == off ] && [ "$(optvalue c)" == off ] && [ "$(optvalue run)" == off ]; then
OPTS[p4]=on
OPTS[c]=on
OPTS[run]=on
fi
T4P4S_CC=${T4P4S_CC-$(find_tool "-" clang gcc)}
if [[ ! "$T4P4S_CC" =~ "clang" ]]; then
# note: when using gcc, only lld seems to be supported, not lld-VSN
T4P4S_LD=${T4P4S_LD-$(find_tool mold lld bfd gold)}
else
T4P4S_LD=${T4P4S_LD-$(find_tool "-" mold lld bfd gold)}
fi
DEBUGGER=${DEBUGGER-$(find_tool "-" lldb gdb)}
verbosemsg "Using $(cc 0)CC$nn=$(cc 1)$T4P4S_CC$nn, $(cc 0)LD$nn=$(cc 1)$T4P4S_LD$nn, $(cc 0)PYTHON3$nn=$(cc 1)${PYTHON3}$nn, $(cc 0)DBG$nn=$(cc 1)${DEBUGGER}$nn"
[ "$(optvalue silent)" != off ] && addopt makeopts ">/dev/null" " "
# Generate directories and files
mkdir -p "$T4P4S_COMPILE_DIR"
rm -rf "$T4P4S_TARGET_DIR"
rm -rf "$T4P4S_AFTERMOST_DIR"
ln -s "`realpath "$T4P4S_COMPILE_DIR"`" "$T4P4S_TARGET_DIR"
ln -s "`realpath "$T4P4S_COMPILE_DIR"`" "$T4P4S_AFTERMOST_DIR"
mkdir -p $T4P4S_SRCGEN_DIR
T4P4S_LOG_DIR=${T4P4S_LOG_DIR-$(realpath ${T4P4S_TARGET_DIR})/log}
mkdir -p "${T4P4S_LOG_DIR}"
PARALLELISM=${PARALLELISM-$((`nproc`))}
PARALLELISM=$(($PARALLELISM < 1 ? 1 : $PARALLELISM))
# --------------------------------------------------------------------
# Checks before execution of phases begins
# determines testcase from test case file if it is not given already
# useful if the example was entered as a file on the command line rather than by name
if [ "$(optvalue testcase)" != off ]; then
MAYBE_TESTFILE=$(find -L "$EXAMPLES_DIR" -type f -name "test-${OPTS[example]##test-}.c")
IFS=$'\n'
for testcase_row in `cat $MAYBE_TESTFILE | grep "&t4p4s_testcase_" | sed -e "s/[[:blank:]]//g" | sed -e "s/[&{}\"]//g"`; do
testcase_in_file=`echo $testcase_row | cut -f1 -d,`
[ "$testcase_in_file" != "${OPTS[testcase]}" ] && continue
OPTS[testcase_function]=`echo $testcase_row | cut -f2 -d,`
break
done
fi
if [ "$(optvalue testcase)" != off -o "$(optvalue suite)" != off ]; then
if [ $(find -L "$EXAMPLES_DIR" -type f -name "test-${OPTS[example]##test-}.c" | wc -l) -ne 1 ]; then
exit_program "No test input file found for example $(cc 0)${OPTS[example]}$nn under $(cc 0)$EXAMPLES_DIR$nn (expected filename: $(cc 0)test-${OPTS[example]##test-}.c$nn)"
fi
fi
[ "$(optvalue testcase)" != off -a "$(optvalue suite)" == off ] && addopt cflags "-DT4P4S_TESTCASE=${OPTS[testcase_function]}" " "
if [ "$(optvalue c)" != off ]; then
if [ "$(optvalue p4rt)" != off ]; then
[ "${GRPC}" == "" ] && exit_program "Option $(cc 0)p4rt$nn is set but variable $(cc 0)\$GRPC$nn is not"
[ "${P4PI}" == "" ] && exit_program "Option $(cc 0)p4rt$nn is set but variable $(cc 0)\$P4PI$nn is not"
[ "${GRPCPP}" == "" ] && exit_program "Option $(cc 0)p4rt$nn is set but variable $(cc 0)\$GRPCPP$nn is not"
fi
fi
# --------------------------------------------------------------------
# Environment variable printout
if [ "${OPTS[showenvs]}" != "" ]; then
echo -e "The following values have been computed for the $(cc 0)customisable environment variables$nn."
IFS=$'\n'
for envvar in `cat t4p4s.sh | grep -e '\([A-Z_]*\)=[$][{]\1-' | sed "s/[ ]*\([^=]*\)=[$][{]\1-\(.*\)[}]$/\1/"`; do
if [ -z "${!envvar}" ]; then
echo -e " $(cc 0)$envvar$nn $(cc 2)is not set$nn"
else
echo -e " $(cc 0)$envvar$nn=$(cc 1)${!envvar}$nn"
fi
done
fi
# --------------------------------------------------------------------
verbosemsg "Options: $(print_opts)"
# Phase 0a: Check for required programs
if [ "$(optvalue c)" != off -a ! -f "$P4C/build/p4test" -a ! command -v p4test &> /dev/null ]; then
exit_program "cannot find P4C compiler at $(cc 1)\$P4C/build/p4test$nn"
fi
# Phase 0b: If a phase with root access is needed, ask for it now
if [ "$(optvalue run)" != off ]; then
verbosemsg "Requesting root access..."
sudo echo -n ""
verbosemsg "Root access granted, starting..."
fi
# Phase 3A: Execution (controller)
if [ "$(optvalue run)" != off ]; then
if [ "$(optvalue ctr)" == off ]; then
msg "[$(cc 0)NO CONTROLLER$nn]"
else
mkdir -p ${T4P4S_LOG_DIR}
CONTROLLER="dpdk_${OPTS[ctr]}_controller"
CONTROLLER_LOG=${T4P4S_LOG_DIR}/controller.log
sudo killall -q "$CONTROLLER"
msg "[$(cc 0)RUN CONTROLLER$nn] $(cc 1)${CONTROLLER}$nn (default for $(cc 0)${OPTS[example]}$nn@$(cc 1)${OPTS[variant]}$nn)"
IFS=$' '
for ctrcfg in ${OPTS[ctrcfg]}; do
[ ! -f $ctrcfg ] && exit_program "Controller config file $(cc 2)$ctrcfg$nn does not exist"
done
verbosemsg "Controller log : $(cc 0)${CONTROLLER_LOG}$nn"
verbosemsg "Controller opts: $(print_cmd_opts ${OPTS[ctrcfg]})"
# Step 3A-1: Compile the controller
cd $CTRL_PLANE_DIR
if [ "$(optvalue verbose)" == on ]; then
CC="ccache $T4P4S_CC" LD="ld.$T4P4S_LD" make -j $CONTROLLER
elif [ "$(optvalue silent)" != off ]; then
CC="ccache $T4P4S_CC" LD="ld.$T4P4S_LD" make -s -j $CONTROLLER
else
CC="ccache $T4P4S_CC" LD="ld.$T4P4S_LD" make -s -j $CONTROLLER >/dev/null
fi
exit_on_error "$?" "Controller compilation $(cc 2)failed$nn"
cd - >/dev/null
command -v gnome-terminal >/dev/null 2>/dev/null
HAS_TERMINAL=$?
setopt T4P4S_CTL_PORT $(find_ephemeral_port 49152 65535)
verbosemsg "Controller port is $(cc 0)$(optvalue T4P4S_CTL_PORT)$nn"
# Step 3A-2: Run controller
if [ $(optvalue showctl optv) == y ]; then
stdbuf -o 0 $CTRL_PLANE_DIR/$CONTROLLER $(optvalue T4P4S_CTL_PORT) ${OPTS[ctrcfg]} &
elif [ "$(optvalue ctrterm)" != off -a "$HAS_TERMINAL" == "0" ]; then
TERMWIDTH=${TERMWIDTH-72}
TERMHEIGHT=${TERMHEIGHT-36}
gnome-terminal --geometry ${TERMWIDTH}x${TERMHEIGHT} -- bash -c "echo Example: ${OPTS[source]} @${OPTS[variant]} && echo Controller: ${CONTROLLER} && echo && (stdbuf -o 0 $CTRL_PLANE_DIR/$CONTROLLER $(optvalue T4P4S_CTL_PORT) ${OPTS[ctrcfg]} | tee ${CONTROLLER_LOG}); read -p 'Press Return to close window'" 2>/dev/null
else
(stdbuf -o 0 $CTRL_PLANE_DIR/$CONTROLLER $(optvalue T4P4S_CTL_PORT) ${OPTS[ctrcfg]} >&2> "${CONTROLLER_LOG}" &)
fi
wait_for_port_availability $(optvalue T4P4S_CTL_PORT)
fi
fi
# Phase 1: P4 to C compilation
if [ "$(optvalue p4)" != off ]; then
msg "[$(cc 0)COMPILE P4-${OPTS[vsn]}$nn] $(cc 0)$(print_cmd_opts ${OPTS[source]})$nn@$(cc 1)${OPTS[variant]}$nn${OPTS[testcase]+, test case $(cc 1)${OPTS[testcase]-(none)}$nn}${OPTS[dbg]+, $(cc 0)debug$nn mode, model $(cc 0)$(optvalue model)$nn}"
LINKED_P4="${T4P4S_COMPILE_DIR}/${OPTS[example]}.${VSN_TO_EXT[${OPTS[vsn]}]}"
rm -f $LINKED_P4
ln -s "`realpath "${OPTS[source]}"`" $LINKED_P4
addopt p4opts "${OPTS[source]}" " "
addopt p4opts "--p4v ${OPTS[vsn]}" " "
addopt p4opts "-g ${T4P4S_SRCGEN_DIR}" " "
[ "$(optvalue verbose)" != off ] && addopt p4opts "-verbose" " "
verbosemsg "P4 compiler options : $(print_cmd_opts "${OPTS[p4opts]}")"
IFS=" "
$PYTHON3 -B src/compiler.py --multi $PARALLELISM ${OPTS[p4opts]}
P4_ERRCODE="$?"
[ ${P4_ERRCODE} -ne 0 ] && ERRCODE=$ERRCODE_COMPILE_P4
exit_on_error "$ERRCODE" "P4 to C compilation $(cc 2)failed$nn"
fi
# Phase 2A: Check prerequisites
if [ "$(optvalue c)" != off ]; then
mkdir -p ${T4P4S_TARGET_DIR}/build
fi
# Phase 2B: C compilation, create build files
if [ "$(optvalue c)" != off ]; then
sudo echo "#pragma once" > "/tmp/${T4P4S_GEN_MODEL}.tmp"
sudo echo "#include \"${ARCH}_model_$(optvalue model).h\"" >> "/tmp/${T4P4S_GEN_MODEL}.tmp"
overwrite_on_difference "${T4P4S_GEN_MODEL}" "${T4P4S_GEN_INCLUDE_DIR}"
sudo echo "#pragma once" > "/tmp/${T4P4S_GEN_LIGHT}.tmp"
unset colour
for colour in ${ALL_COLOUR_NAMES[@]}; do
COLOUR_MACRO=""
[ "$(array_contains "${OPTS[bw]}" "on" "switch")" == n ] && COLOUR_MACRO="\"${OPTS["${OPTS[T4LIGHT_$colour]}"]-${OPTS[T4LIGHT_$colour]}}\" // ${OPTS[T4LIGHT_$colour]}"
[ "$(array_contains "${OPTS[bw]}" "on" "switch")" == n ] && [ "$COLOUR_MACRO" == "\"\"" ] && [ "$colour" != "default" ] && COLOUR_MACRO="T4LIGHT_default"
sudo echo "#define T4LIGHT_${colour} $COLOUR_MACRO" >> "/tmp/${T4P4S_GEN_LIGHT}.tmp"
done
overwrite_on_difference "${T4P4S_GEN_LIGHT}" "${T4P4S_GEN_INCLUDE_DIR}"
sudo echo "#pragma once" > "/tmp/${T4P4S_GEN_INCLUDE}.tmp"
IFS=" "
for hdr in ${OPTS[include-hdrs]}; do
sudo echo "#include \"$hdr\"" >> "/tmp/${T4P4S_GEN_INCLUDE}.tmp"
done
EXTRA_BUILD_OPTS=""
[ "$(optvalue sanitize)" != off ] && EXTRA_BUILD_OPTS="'b_sanitize=address,undefined',"
echo """
#ifndef T4P4S_MODEL
#error No T4P4S_MODEL set; perhaps configuration in examples.cfg is missing/incomplete?
#ifdef T4P4S_TESTCASE
#error Possible cause for missing T4P4S_MODEL: is there an appropriate @test line in examples.cfg?
#endif
#endif
""" >> "/tmp/${T4P4S_GEN_INCLUDE}.tmp"
if [ "$(optvalue T4P4S_CTL_PORT)" != off ]; then
sudo echo "#define T4P4S_CTL_PORT $(optvalue T4P4S_CTL_PORT)" >> "/tmp/${T4P4S_GEN_INCLUDE}.tmp"
else
sudo echo "#define T4P4S_CTL_PORT 0" >> "/tmp/${T4P4S_GEN_INCLUDE}.tmp"
fi
overwrite_on_difference "${T4P4S_GEN_INCLUDE}" "${T4P4S_GEN_INCLUDE_DIR}"
sudo echo "#pragma once" > "/tmp/${T4P4S_GEN_DEFS}.tmp"
IFS=$'\n'
for def in ${OPTS[include-defs]}; do
sudo echo "$def" >> "/tmp/${T4P4S_GEN_DEFS}.tmp"
done
overwrite_on_difference "${T4P4S_GEN_DEFS}" "${T4P4S_GEN_INCLUDE_DIR}"
cat <<EOT >"/tmp/meson.build.tmp"
project(
'${OPTS[example]}',
'c',
version : '1.0.0',
default_options : [
'warning_level=${WARNING_LEVEL}',
'optimization=3',
$EXTRA_BUILD_OPTS
'buildtype=release',
],
)
EOT
echo >> "/tmp/meson.build.tmp"
sudo cat "meson.build.base" >>"/tmp/meson.build.tmp"
if [ "$(optvalue p4rt)" != off ]; then
sudo cat <<EOT >>"/tmp/meson.build.tmp"
grpc = '$GRPC'
p4pi = '$P4PI'
grpcpp = '$GRPCPP'
EOT
sudo cat "meson.build.p4rt" >>"/tmp/meson.build.tmp"
fi
if [ "$(optvalue testcase)" != off -o "$(optvalue suite)" != off ]; then
TESTFILE=$(find -L "$EXAMPLES_DIR" -type f -name "test-${OPTS[example]##test-}.c")
sudo echo >>"/tmp/meson.build.tmp"
sudo echo "project_source_files += ['../../$TESTFILE']" >>"/tmp/meson.build.tmp"
sudo echo >>"/tmp/meson.build.tmp"
fi
IFS=" "
for src in ${OPTS[include-srcs]}; do
sudo echo "project_source_files += [$src]" >> "/tmp/meson.build.tmp"
done
for flag in ${OPTS[cflags]}; do
sudo echo "build_args += ['$flag']" >> "/tmp/meson.build.tmp"
done
sudo cat <<EOT >>"/tmp/meson.build.tmp"
foreach i: [`seq 0 $(($PARALLELISM-1)) | tr '\n' ','`]
foreach multi: ['actions', 'controlplane', 'dataplane', 'parser']
multifile = multi + '.stage_' + i.to_string() + '.c'
if fs.exists(srcg / 'multi' / multifile)
project_source_files += [srcg / 'multi' / multifile]
endif
endforeach
endforeach
include_dirs = include_directories(incdirs)
executable(
meson.project_name(),
project_source_files,
c_args : build_args,
gnu_symbol_visibility : 'hidden',
include_directories : include_dirs,
dependencies : all_dependencies,