mirror of
https://github.com/notwa/rc
synced 2024-04-29 02:43:23 -07:00
299 lines
12 KiB
Bash
Executable File
299 lines
12 KiB
Bash
Executable File
#!/usr/bin/env zsh
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# I'll just leave this here...
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__setup_clang_ubuntu() {
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local site="http://apt.llvm.org"
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local name="$(lsb_release -c | cut -f2)"
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local version=10 # NOTE: no longer decimal-based
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local priority=$(( version * 100 ))
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# TODO: use https? this is sketchy
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echo wget -O - "$site/llvm-snapshot.gpg.key" \| apt-key add -
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echo echo -n \""\
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deb $site/$name/ llvm-toolchain-$name main\n\
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# deb-src $site/$name/ llvm-toolchain-$name main\n\
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# $version\n\
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deb $site/$name/ llvm-toolchain-$name-$version main\n\
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# deb-src $site/$name/ llvm-toolchain-$name-$version main\n\
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"\" \> "/etc/apt/sources.list.d/llvm-toolchain-$name.list"
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echo apt-get update
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echo apt-get install clang-$version
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echo apt-get install lld-$version
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echo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-$version $priority
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echo update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-$version $priority
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echo update-alternatives --install /usr/bin/llvm-symbolizer llvm-symbolizer /usr/bin/llvm-symbolizer-$version $priority
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}
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compile() {
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local gcc="$(whence -p gcc 2>/dev/null)"
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local clang="$(whence -p clang 2>/dev/null)"
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local clang_flags=() # currently just for clang-msvc
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local cl
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local vc
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if [ -n "$MSYSTEM" ]; then # using msys2?
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if [ -z "$clang" ]; then # don't have native clang?
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# then maybe we have clang-msvc installed.
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local dir
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printf "%s\n" "/c/Program Files/LLVM"*(On/N[1]) | read -r dir
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if [ -d "$dir" ] && [ -e "$dir/bin/clang" ]; then
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clang="$dir/bin/clang"
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# not sure if i'll need this:
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#local clang_include
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#printf "%s\n" "$dir/lib/clang/"*(On/N[1]) | read -r clang_include
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#[ -n "$clang_include" ] || { echo "failed glob; missing clang include" >&2; return 1 }
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#clang_flags+=(-I"$clang_include/include")
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export PATH="$PATH:$dir/bin/"
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fi
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fi
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local winkit
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printf "%s\n" "/c/Program Files (x86)/Windows Kits/"*(on/N[1]) | read -r winkit
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[ -n "$winkit" ] || { echo "failed glob; missing winkit" >&2; return 1 }
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printf "%s\n" "$winkit/Lib/"*(On/N[1]) | read -r winkit
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[ -n "$winkit" ] || { echo "failed glob; missing winkit" >&2; return 1 }
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# detect MSVC.
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local clarch
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local arch
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local msvc_dig_deep
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[ "$MSYSTEM" = MINGW64 ] && clarch="/amd64" || clarch=""
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[ "$MSYSTEM" = MINGW64 ] && arch="x64" || arch="x86"
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if [ -d "/c/Program Files (x86)/Microsoft Visual Studio" ]; then # 2017+
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printf "%s\n" "/c/Program Files (x86)/Microsoft Visual Studio/20"*(On/N[1]) | read vc
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printf "%s\n" "$vc"/*/VC | read vc
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printf "%s\n" "$vc/Tools/MSVC/"*(On/N[1]) | read vc
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msvc_dig_deep="yes"
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else # older versions
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printf "%s\n" "/c/Program Files (x86)/Microsoft Visual Studio "*(On/N[1]) | read vc
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vc="$vc/VC"
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fi
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# setup MSVC.
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if [ -n "$msvc_dig_deep" ] && [ -e "$vc/bin/Host$arch/$arch/cl" ]; then
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cl="$vc/bin/Host$arch/$arch/cl"
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export PATH="$PATH:$vc/bin/Host$arch/$arch"
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export LIB="$(cygpath -w "$vc/lib/$arch")"
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export LIBPATH="$(cygpath -w "$vc/lib/$arch")"
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elif [ -d "$vc/bin$clarch" ] && [ -e "$vc/bin$clarch/$cl" ]; then
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cl="$vc/bin$clarch/cl"
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export PATH="$PATH:$vc/bin$clarch"
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export LIB="$(cygpath -w "$vc/LIB$clarch")"
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export LIBPATH="$(cygpath -w "$vc/LIB$clarch")"
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fi
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# finish up.
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if [ -n "$cl" ]; then
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export INCLUDE="$(cygpath -w "$vc/INCLUDE")"
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export INCLUDE="$INCLUDE;$(cygpath -w "${winkit/Lib/Include}/ucrt")"
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export LIB="$LIB;$(cygpath -w "$winkit/um/$arch")"
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export LIB="$LIB;$(cygpath -w "$winkit/ucrt/$arch")"
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for d in "${(@s/;/)INCLUDE}"; do
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clang_flags+=(-I"$d")
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done
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# ignore MSVC's non-standard deprecation warnings.
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clang_flags+=(-D_CRT_SECURE_NO_WARNINGS)
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fi
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fi
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local sep_once=
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print_separated() {
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echo -n "${sep_once:+|}$1" >&2
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sep_once=1
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}
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if [ $# -eq 0 ]; then
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echo -n "usage: compile [" >&2
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[ -n "$clang" ] && print_separated "clang"
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[ -n "$gcc" ] && print_separated "gcc"
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[ -n "$cl" ] && print_separated "msvc"
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echo "] [debug|derelease|release|hardened] [flags...] {source file}" >&2
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return 1
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fi
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# set some defaults.
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local sepples=0
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[ -n "$clang" ] && local CC=clang || local CC=gcc
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[ -n "$clang" ] && local CXX=clang++ || local CXX=g++
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local our_flags=(-I.)
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# guess if we're compiling C++ by the file extension.
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local file=${@[-1]}
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[ "${file##*.}" = "c" ] || [ "${file##*.}" = "h" ] || sepples=1
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# select the appropriate executable if a compiler name is given.
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{ [ "$1" = clang ] && CC="clang" && CXX="clang++" && shift } || \
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{ [ "$1" = gcc ] && CC="gcc" && CXX="g++" && shift } || \
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{ [ "$1" = msvc ] && CC="cl" && CXX="cl" && shift }
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# always color outputs.
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[ "$CC" = cl ] || our_flags+=-fdiagnostics-color=always
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# add our clang-specific flags. (currently just for clang-msvc)
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if [ $CC = clang ] && [ -n "$clang_flags" ]; then
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for flag in $clang_flags; do
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our_flags+=($flag)
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done
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fi
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# if they exist, include some directories that contain useful headers.
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maybe_include() {
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[ -d "$1" ] && our_flags+=("-I$1")
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}
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maybe_include "$HOME/opt/local/include"
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maybe_include "$HOME/src/ustl"
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# set the build flags for each mode.
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if [ $CC = cl ]; then
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our_flags+=(-nologo -utf-8)
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local debug_flags=(-Od -ZI -sdl);
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local release_flags=(-Ox)
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local dr_flags=(-Ox -Zi)
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local hardened_flags=(-Ox -sdl)
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else
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if [ $CC = clang ]; then
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# clang doesn't like -march=native on ARM for some reason.
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our_flags+=(-mcpu=native)
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else
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our_flags+=(-march=native)
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fi
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local debug_flags=(-O1 -g -D_DEBUG);
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local release_flags=(-Ofast -fwhole-program -fweb -mtune=native -g0 -fomit-frame-pointer -s -DNDEBUG)
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local dr_flags=(-Ofast -g -fomit-frame-pointer -DNDEBUG)
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local hardened_flags=(-O3 -g0 -s
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-DNDEBUG -D_FORTIFY_SOURCE=2
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-Wformat -Wformat-security -Werror=format-security)
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if [ -z "$MSYSTEM" ]; then
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hardened_flags+=(-fPIE -pie)
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hardened_flags+=(-Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now)
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fi
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local nomalloc=(-fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free)
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if [ -e /usr/bin/pprof ]; then
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#debug_flags+=(-ltcmalloc $nomalloc)
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dr_flags+=(-lprofiler $nomalloc)
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elif [ -e /usr/bin/google-pprof ]; then
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#debug_flags+=(-l:libtcmalloc.so.4 $nomalloc)
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dr_flags+=(-l:libtcmalloc_and_profiler.so.4 $nomalloc)
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fi
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fi
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# select appropriate version and executable for the language.
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local compiler=
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if [ $sepples -eq 1 ]; then
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compiler=$CXX
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[ $CC = cl ] && std="-TP" || std="-std=gnu++1z"
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else
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compiler=$CC
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[ $CC = cl ] && std="-TC" || std="-std=gnu11"
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fi
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local clang_msvc=0
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if [ $CC = clang ]; then
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if $compiler --version | grep -q windows-msvc; then
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clang_msvc=1
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fi
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fi
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# utilize clang's vast debugging and hardening features where available.
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if [ $CC = clang ]; then
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debug_flags+=(-ftrapv)
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[ -z "$MSYSTEM" ] && local gold=gold || local gold=lld
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[ -n "$MSYSTEM" ] && our_flags+=(-fansi-escape-codes) || true
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if [ $clang_msvc -eq 1 ] || [ -z "$MSYSTEM" ]; then
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debug_flags+=(-fsanitize=undefined) # this SHOULD work with mingw,
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# but it fails to link.
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debug_flags+=(-fsanitize=address)
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debug_flags+=(-fvisibility=hidden -fuse-ld=$gold -flto -fsanitize=cfi)
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hardened_flags+=(-fsanitize=safe-stack)
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hardened_flags+=(-fstack-protector-strong)
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hardened_flags+=(-fvisibility=hidden -fuse-ld=$gold -flto -fsanitize=cfi)
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else
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fi
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fi
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# select and merge the flags for our build mode.
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# TODO: add static option.
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{ [ "$1" = debug ] && our_flags+=($debug_flags) && shift } || \
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{ [ "$1" = release ] && our_flags+=($release_flags) && shift } || \
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{ [ "$1" = derelease ] && our_flags+=($dr_flags) && shift } || \
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{ [ "$1" = hardened ] && our_flags+=($hardened_flags) && shift } || \
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{ our_flags+=($debug_flags) } # our default
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local flags=(${@[1,-2]})
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# drop everything past the first dot and use that as our output filename.
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local out=/tmp/${${file##*/}%%.*}
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if [ -n "$MSYSTEM" ]; then
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# explicitly output as .exe to avoid weirdness.
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out="$out.exe"
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fi
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# TODO: naive idea:
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# allow multiple source files (using the firstmost to determine the program name)
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# by generating a file that #includes each given file.
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local final_flags=()
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local libraries=()
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local warnings=()
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for flag in $our_flags $flags; do
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# move -l flags to the end because gcc won't respect them otherwise.
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if [[ $flag == -l* ]]; then
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libraries+=($flag)
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# split warning flags so they don't spam the console.
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elif [[ $flag == -W* ]] && [[ $flag != -Wl* ]] || [[ $flag == -Wlogical-op ]]; then
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warnings+=($flag)
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if [ $sepples -eq 0 ] && [[ $flag == -Wextra ]] then
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# enable some warnings just for C. too annoying in C++.
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warnings+=(-Wshadow -Winline)
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# these ones only work with C.
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warnings+=(-Wjump-misses-init)
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fi
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if [ $CC = cl ] && [ $flag = -Wall ]; then
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# disable some obnoxious msvc warnings.
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warnings+=(
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-wd4505 # unreferenced local function has been removed
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-wd4514 # unreferenced inline function has been removed
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-wd4625 # copy constructor was implicitly defined as deleted because a base class copy constructor is inaccessible or deleted
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-wd4626 # assignment operator was implicitly defined as deleted because a base class assignment operator is inaccessible or deleted
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-wd4710 # function not inlined
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-wd4711 # function selected for automatic inline expansion
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)
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fi
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else
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if [ $CC = clang ]; then
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# these are specific to gcc. (for now)
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if [ $flag = "-findirect-inlining" ] \
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|| [ $flag = "-finline-small-functions" ]; then
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continue
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fi
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fi
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if [ $clang_msvc -eq 1 ]; then
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# remove linker-related flags from our compiler-only clang.
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if [ $flag = "-Wl,--gc-sections" ] \
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|| [ $flag = "-s" ]; then
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continue
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fi
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fi
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final_flags+=($flag)
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fi
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done
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# do the thing!
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[ $CC = cl ] && local outflag=-Fe: || local outflag=-o
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echo $compiler $std ${final_flags[@]} $file ${libraries[@]} $outflag $out >&2
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$compiler $std ${final_flags[@]} $file ${libraries[@]} ${warnings[@]} $outflag $out
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}
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compile "$@"
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