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319 lines
7.7 KiB
319 lines
7.7 KiB
#!/usr/bin/env bash
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set -eu -o pipefail
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print_usage() {
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cat <<EOF
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Usage: tool [options] command [args]
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Commands:
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build <config> <target>
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Compile orca.
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Configs: debug, release
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Targets: orca, cli
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Output: build/<config>/<target>
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clean
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Removes build/
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info
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Prints information about the detected build environment.
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Options:
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-v Print important commands as they're executed.
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-c <name> Use a specific compiler binary.
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Default: \$CC, or cc
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-d Enable compiler safeguards like -fstack-protector.
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You should probably do this if you plan to give the
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compiled binary to other people.
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--static Build static binary.
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--pie Enable PIE (ASLR).
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Note: --pie and --static cannot be mixed.
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-s Print statistics about compile time and binary size.
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-h or --help Print this message and exit.
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EOF
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}
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os=
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case $(uname -s | awk '{print tolower($0)}') in
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linux*) os=linux;;
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darwin*) os=mac;;
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cygwin*) os=cygwin;;
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*bsd*) os=bsd;;
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*) os=unknown;;
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esac
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cc_exe="${CC:-cc}"
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verbose=0
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protections_enabled=0
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stats_enabled=0
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pie_enabled=0
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static_enabled=0
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while getopts c:dhsv-: opt_val; do
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case "$opt_val" in
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-)
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case "$OPTARG" in
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help) print_usage; exit 0;;
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static) static_enabled=1;;
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pie) pie_enabled=1;;
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*)
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echo "Unknown long option --$OPTARG" >&2
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print_usage >&2
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exit 1
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;;
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esac
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;;
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c) cc_exe="$OPTARG";;
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d) protections_enabled=1;;
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h) print_usage; exit 0;;
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s) stats_enabled=1;;
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v) verbose=1;;
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\?) print_usage >&2; exit 1;;
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*) break;;
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esac
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done
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arch=
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case $(uname -m) in
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x86_64) arch=x86_64;;
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*) arch=unknown;;
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esac
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warn() {
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echo "Warning: $*" >&2
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}
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fatal() {
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echo "Error: $*" >&2
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exit 1
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}
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script_error() {
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echo "Script error: $*" >&2
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exit 1
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}
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verbose_echo() {
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if [[ $verbose = 1 ]]; then
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echo "$@"
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fi
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"$@"
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}
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TIMEFORMAT='%3R'
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last_time=
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file_size() {
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wc -c < "$1" | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//'
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}
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timed_stats() {
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if [[ $stats_enabled = 1 ]]; then
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{ last_time=$( { time "$@" 1>&3- 2>&4-; } 2>&1 ); } 3>&1 4>&2
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else
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"$@"
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fi
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}
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if [[ ($os == bsd) || ($os == unknown) ]]; then
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warn "Build script not tested on this platform"
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fi
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# This is not perfect by any means
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cc_id=
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cc_vers=
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lld_detected=0
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if cc_vers_string=$("$cc_exe" --version 2> /dev/null); then
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if clang_vers_string=$(echo "$cc_vers_string" | grep clang | head -n1) && ! [[ -z $clang_vers_string ]]; then
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cc_id=clang
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# clang -dumpversion always pretends to be gcc 4.2.1
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# shellcheck disable=SC2001
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cc_vers=$(echo "$clang_vers_string" | sed 's/.*version \([0-9]*\.[0-9]*\.[0-9]*\).*/\1/')
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if [[ $os != mac ]]; then
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if command -v "lld" >/dev/null 2>&1; then
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lld_detected=1
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fi
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fi
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# Only gcc has -dumpfullversion
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elif cc_vers=$("$cc_exe" -dumpfullversion 2> /dev/null); then
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cc_id=gcc
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fi
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fi
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if [[ -z $cc_id ]]; then
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warn "Failed to detect compiler type"
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fi
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if [[ -z $cc_vers ]]; then
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warn "Failed to detect compiler version"
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fi
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add() {
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if [[ -z "${1:-}" ]]; then
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script_error "At least one argument required for array add"
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fi
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local array_name
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array_name=${1}
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shift
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eval "$array_name+=($(printf "'%s' " "$@"))"
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}
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try_make_dir() {
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if ! [[ -e "$1" ]]; then
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verbose_echo mkdir "$1"
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elif ! [[ -d "$1" ]]; then
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fatal "File $1 already exists but is not a directory"
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fi
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}
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build_dir=build
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build_target() {
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local build_subdir
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local cc_flags=()
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local libraries=()
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local source_files=()
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local out_exe
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add cc_flags -std=c99 -pipe -Wall -Wpedantic -Wextra -Wconversion -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-pointer-types -Werror=int-conversion
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if [[ $lld_detected = 1 ]]; then
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add cc_flags -fuse-ld=lld
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fi
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if [[ $protections_enabled = 1 ]]; then
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add cc_flags -D_FORTIFY_SOURCE=2 -fstack-protector-strong
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fi
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if [[ $pie_enabled = 1 ]]; then
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add cc_flags -pie -fpie -Wl,-pie
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elif [[ $os != mac ]]; then
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add cc_flags -no-pie -fno-pie
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fi
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if [[ $static_enabled = 1 ]]; then
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add cc_flags -static
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fi
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case "$1" in
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debug)
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build_subdir=debug
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add cc_flags -DDEBUG -ggdb -fsanitize=address -fsanitize=undefined
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if [[ $os = mac ]]; then
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# Our mac clang does not have -Og
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add cc_flags -O1
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else
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add cc_flags -Og
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# needed if address is already specified? doesn't work on mac clang, at
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# least
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# add cc_flags -fsanitize=leak
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fi
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;;
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release)
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build_subdir=release
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add cc_flags -DNDEBUG -O2 -g0
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if [[ $protections_enabled != 1 ]]; then
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add cc_flags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0 -fno-stack-protector
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fi
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if [[ $os = mac ]]; then
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# todo some stripping option
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true
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else
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# -flto is good on both clang and gcc on Linux
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add cc_flags -flto -s
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fi
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;;
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*) fatal "Unknown build config \"$1\"";;
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esac
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case $arch in
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x86_64) add cc_flags -march=nehalem;;
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esac
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add source_files gbuffer.c field.c mark.c bank.c sim.c
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case "$2" in
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cli)
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add source_files cli_main.c
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out_exe=cli
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;;
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orca|tui)
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add source_files tui_main.c
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add cc_flags -D_XOPEN_SOURCE_EXTENDED=1
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# thirdparty headers (like sokol_time.h) should get -isystem for their
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# include dir so that any warnings they generate with our warning flags
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# are ignored. (sokol_time.h may generate sign conversion warning on
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# mac.)
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add cc_flags -isystem thirdparty
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out_exe=orca
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case $os in
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mac)
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# prefer homebrew version of ncurses if installed. Will give us
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# better terminfo, so we can use A_DIM in Terminal.app, etc.
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if [[ -d /usr/local/opt/ncurses ]]; then
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add libraries -L/usr/local/opt/ncurses/lib
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add cc_flags -I/usr/local/opt/ncurses/include
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fi
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# todo mach time stuff for mac
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;;
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*)
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# librt and high-res posix timers on Linux
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add libraries -lrt
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add cc_flags -D_POSIX_C_SOURCE=200809L
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;;
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esac
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add libraries -lncurses
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# If we wanted wide chars, use -lncursesw on Linux, and still just
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# -lncurses on Mac.
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;;
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esac
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try_make_dir "$build_dir"
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try_make_dir "$build_dir/$build_subdir"
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local out_path=$build_dir/$build_subdir/$out_exe
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# bash versions quirk: empty arrays might give error on expansion, use +
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# trick to avoid expanding second operand
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verbose_echo timed_stats "$cc_exe" "${cc_flags[@]}" -o "$out_path" "${source_files[@]}" ${libraries[@]+"${libraries[@]}"}
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if [[ $stats_enabled = 1 ]]; then
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echo "time: $last_time"
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echo "size: $(file_size "$out_path")"
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fi
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}
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print_info() {
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local linker_name
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if [[ $lld_detected = 1 ]]; then
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linker_name=LLD
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else
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linker_name=default
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fi
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cat <<EOF
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Operating system: $os
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Architecture: $arch
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Compiler name: $cc_exe
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Compiler type: $cc_id
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Compiler version: $cc_vers
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Linker: $linker_name
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EOF
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}
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shift $((OPTIND - 1))
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if [[ -z "${1:-}" ]]; then
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echo "Error: Command required" >&2
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print_usage >&2
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exit 1
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fi
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case "$1" in
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info)
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if [[ "$#" -gt 1 ]]; then
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fatal "Too many arguments for 'info'"
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fi
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print_info
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exit 0
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;;
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build)
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if [[ "$#" -lt 3 ]]; then
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fatal "Too few arguments for 'build'"
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fi
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if [[ "$#" -gt 3 ]]; then
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fatal "Too many arguments for 'build'"
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fi
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build_target "$2" "$3"
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;;
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clean)
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if [[ -d "$build_dir" ]]; then
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verbose_echo rm -rf "$build_dir"
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fi
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;;
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*) fatal "Unrecognized command $1";;
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esac
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