mirror of
https://github.com/vlang/v.git
synced 2023-08-10 21:13:21 +03:00
556 lines
15 KiB
V
556 lines
15 KiB
V
// Copyright (c) 2019 Alexander Medvednikov. All rights reserved.
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// Use of this source code is governed by an MIT license
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// that can be found in the LICENSE file.
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module compiler
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import (
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os
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time
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filepath
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)
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fn todo() {
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}
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fn (v &V) no_cc_installed() bool {
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$if windows {
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os.exec('$v.pref.ccompiler -v') or {
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if v.pref.is_verbose {
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println('C compiler not found, trying to build with msvc...')
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}
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return true
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}
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}
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return false
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}
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fn (v mut V) cc() {
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if os.executable().contains('vfmt') {
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return
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}
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v.build_thirdparty_obj_files()
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vexe := vexe_path()
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vdir := os.dir(vexe)
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// Just create a C/JavaScript file and exit
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// for example: `v -o v.c compiler`
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if v.out_name.ends_with('.c') || v.out_name.ends_with('.js') {
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// Translating V code to JS by launching vjs.
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// Using a separate process for V.js is for performance mostly,
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// to avoid constant is_js checks.
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$if !js {
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if v.out_name.ends_with('.js') {
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vjs_path := vexe + 'js'
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if !os.exists(vjs_path) {
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println('V.js compiler not found, building...')
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// Build V.js. Specifying `-os js` makes V include
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// only _js.v files and ignore _c.v files.
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ret := os.system('$vexe -o $vjs_path -os js $vdir/v.v')
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if ret == 0 {
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println('Done.')
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} else {
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println('Failed.')
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exit(1)
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}
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}
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ret := os.system('$vjs_path -o $v.out_name $v.dir')
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if ret == 0 {
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println('Done. Run it with `node $v.out_name`')
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println('JS backend is at a very early stage.')
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}
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}
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}
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// v.out_name_c may be on a different partition than v.out_name
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os.mv_by_cp(v.out_name_c, v.out_name) or { panic(err) }
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exit(0)
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}
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// Cross compiling for Windows
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if v.os == .windows {
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$if !windows {
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v.cc_windows_cross()
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return
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}
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}
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$if windows {
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if v.pref.ccompiler == 'msvc' || v.no_cc_installed() {
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v.cc_msvc()
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return
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}
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}
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// arguments for the C compiler
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mut a := [v.pref.cflags, '-std=gnu11',
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'-Wall',
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'-Wextra',
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// TODO : activate -Werror once no warnings remain
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// '-Werror',
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// TODO : try and remove the below workaround options when the corresponding
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// warnings are totally fixed/removed
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'-Wno-unused-variable',
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//'-Wno-unused-but-set-variable',
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'-Wno-unused-parameter',
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'-Wno-unused-result',
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'-Wno-unused-function',
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'-Wno-missing-braces',
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'-Wno-unused-label']
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// TCC on Linux by default, unless -cc was provided
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// TODO if -cc = cc, TCC is still used, default compiler should be
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// used instead.
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if v.pref.fast {
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$if linux {
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$if !android {
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tcc_3rd := '$vdir/thirdparty/tcc/bin/tcc'
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//println('tcc third "$tcc_3rd"')
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tcc_path := '/var/tmp/tcc/bin/tcc'
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if os.exists(tcc_3rd) && !os.exists(tcc_path) {
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//println('moving tcc')
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// if there's tcc in thirdparty/, that means this is
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// a prebuilt V_linux.zip.
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// Until the libtcc1.a bug is fixed, we neeed to move
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// it to /var/tmp/
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os.system('mv $vdir/thirdparty/tcc /var/tmp/')
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}
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if v.pref.ccompiler == 'cc' && os.exists(tcc_path) {
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// TODO tcc bug, needs an empty libtcc1.a fila
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//os.mkdir('/var/tmp/tcc/lib/tcc/') or { panic(err) }
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//os.create('/var/tmp/tcc/lib/tcc/libtcc1.a')
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v.pref.ccompiler = tcc_path
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a << '-m64'
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}
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}
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} $else {
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verror('-fast is only supported on Linux right now')
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}
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}
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//linux_host := os.user_os() == 'linux'
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v.log('cc() isprod=$v.pref.is_prod outname=$v.out_name')
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if v.pref.is_so {
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a << '-shared -fPIC '// -Wl,-z,defs'
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v.out_name = v.out_name + '.so'
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}
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if v.pref.is_bare {
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a << '-fno-stack-protector -static -ffreestanding -nostdlib'
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}
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if v.pref.build_mode == .build_module {
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// Create the modules & out directory if it's not there.
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mut out_dir := if v.dir.starts_with('vlib') {
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'$v_modules_path${os.path_separator}cache${os.path_separator}$v.dir'
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} else {
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'$v_modules_path${os.path_separator}$v.dir'
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}
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pdir := out_dir.all_before_last(os.path_separator)
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if !os.is_dir(pdir) {
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os.mkdir_all(pdir)
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}
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v.out_name = '${out_dir}.o' //v.out_name
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println('Building ${v.out_name}...')
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}
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debug_mode := v.pref.is_debug
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mut debug_options := '-g'
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mut optimization_options := '-O2'
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mut guessed_compiler := v.pref.ccompiler
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if guessed_compiler == 'cc' && v.pref.is_prod {
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// deliberately guessing only for -prod builds for performance reasons
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if ccversion := os.exec('cc --version') {
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if ccversion.exit_code == 0 {
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if ccversion.output.contains('This is free software;')
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&& ccversion.output.contains('Free Software Foundation, Inc.') {
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guessed_compiler = 'gcc'
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}
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if ccversion.output.contains('clang version '){
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guessed_compiler = 'clang'
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}
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}
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}
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}
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if v.pref.ccompiler.contains('clang') || guessed_compiler == 'clang' {
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if debug_mode {
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debug_options = '-g -O0 -no-pie'
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}
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optimization_options = '-O3 -flto'
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}
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if v.pref.ccompiler.contains('gcc') || guessed_compiler == 'gcc' {
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if debug_mode {
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debug_options = '-g3 -no-pie'
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}
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optimization_options = '-O3 -fno-strict-aliasing -flto'
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}
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if debug_mode {
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a << debug_options
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}
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if v.pref.is_prod {
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a << optimization_options
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}
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if debug_mode && os.user_os() != 'windows'{
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a << ' -rdynamic ' // needed for nicer symbolic backtraces
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}
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if v.pref.ccompiler != 'msvc' && v.os != .freebsd {
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a << '-Werror=implicit-function-declaration'
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}
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for f in v.generate_hotcode_reloading_compiler_flags() {
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a << f
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}
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mut libs := ''// builtin.o os.o http.o etc
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if v.pref.build_mode == .build_module {
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a << '-c'
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}
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else if v.pref.is_cache {
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builtin_o_path := filepath.join(v_modules_path, 'cache', 'vlib', 'builtin.o')
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a << builtin_o_path.replace('builtin.o', 'strconv.o') // TODO hack no idea why this is needed
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if os.exists(builtin_o_path) {
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libs = builtin_o_path
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} else {
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println('$builtin_o_path not found... building module builtin')
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os.system('$vexe build module vlib${os.path_separator}builtin')
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}
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for imp in v.table.imports {
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if imp.contains('vweb') { continue } // not working
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if imp == 'webview' { continue }
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imp_path := imp.replace('.', os.path_separator)
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path := '$v_modules_path${os.path_separator}cache${os.path_separator}vlib${os.path_separator}${imp_path}.o'
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//println('adding ${imp_path}.o')
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if os.exists(path) {
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libs += ' ' + path
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} else {
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println('$path not found... building module $imp')
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if path.ends_with('vlib/ui.o') {
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println('copying ui...')
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os.cp('$vdir/thirdparty/ui/ui.o', path) or { panic('error copying ui files') }
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os.cp('$vdir/thirdparty/ui/ui.vh', v_modules_path +
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'/vlib/ui.vh') or { panic('error copying ui files') }
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} else {
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os.system('$vexe build module vlib${os.path_separator}$imp_path')
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}
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}
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if path.ends_with('vlib/ui.o') {
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a << '-framework Cocoa -framework Carbon'
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}
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}
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}
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if v.pref.sanitize {
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a << '-fsanitize=leak'
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}
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// Cross compiling linux TODO
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/*
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sysroot := '/tmp/lld/linuxroot/'
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if v.os == .linux && !linux_host {
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// Build file.o
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a << '-c --sysroot=$sysroot -target x86_64-linux-gnu'
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// Right now `out_name` can be `file`, not `file.o`
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if !v.out_name.ends_with('.o') {
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v.out_name = v.out_name + '.o'
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}
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}
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*/
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// Cross compiling windows
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//
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// Output executable name
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a << '-o "$v.out_name"'
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if os.is_dir(v.out_name) {
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verror('\'$v.out_name\' is a directory')
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}
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// macOS code can include objective C TODO remove once objective C is replaced with C
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if v.os == .mac {
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a << '-x objective-c'
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}
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// The C file we are compiling
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a << '"$v.out_name_c"'
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if v.os == .mac {
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a << '-x none'
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}
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// Min macos version is mandatory I think?
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if v.os == .mac {
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a << '-mmacosx-version-min=10.7'
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}
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cflags := v.get_os_cflags()
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// add .o files
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a << cflags.c_options_only_object_files()
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// add all flags (-I -l -L etc) not .o files
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a << cflags.c_options_without_object_files()
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a << libs
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// Without these libs compilation will fail on Linux
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// || os.user_os() == 'linux'
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if !v.pref.is_bare && v.pref.build_mode != .build_module && v.os in [ .linux, .freebsd,
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.openbsd, .netbsd, .dragonfly, .solaris, .haiku ] {
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a << '-lm -lpthread '
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// -ldl is a Linux only thing. BSDs have it in libc.
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if v.os == .linux {
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a << ' -ldl '
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}
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if v.os == .freebsd {
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// FreeBSD: backtrace needs execinfo library while linking
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a << ' -lexecinfo '
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}
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}
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if !v.pref.is_bare && v.os == .js && os.user_os() == 'linux' {
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a << '-lm'
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}
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args := a.join(' ')
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start:
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todo()
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// TODO remove
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cmd := '${v.pref.ccompiler} $args'
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// Run
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if v.pref.show_c_cmd || v.pref.is_verbose {
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println('\n==========')
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println(cmd)
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}
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ticks := time.ticks()
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res := os.exec(cmd) or {
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// C compilation failed.
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// If we are on Windows, try msvc
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println('C compilation failed.')
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/*
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if os.user_os() == 'windows' && v.pref.ccompiler != 'msvc' {
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println('Trying to build with MSVC')
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v.cc_msvc()
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return
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}
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*/
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verror(err)
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return
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}
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if res.exit_code != 0 {
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// the command could not be found by the system
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if res.exit_code == 127 {
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$if linux {
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// TCC problems on linux? Try GCC.
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if v.pref.ccompiler.contains('tcc') {
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v.pref.ccompiler = 'cc'
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goto start
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}
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}
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verror('C compiler error, while attempting to run: \n' +
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'-----------------------------------------------------------\n' +
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'$cmd\n' +
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'-----------------------------------------------------------\n' +
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'Probably your C compiler is missing. \n' +
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'Please reinstall it, or make it available in your PATH.\n\n' +
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missing_compiler_info())
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}
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if v.pref.is_debug {
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println(res.output)
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} else {
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partial_output := res.output.limit(200).trim_right('\r\n')
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print(partial_output)
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if res.output.len > partial_output.len {
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println('...\n(Use `v -g` to print the entire error message)\n')
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}else{
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println('')
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}
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}
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verror('C error. This should never happen. ' +
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'\nPlease create a GitHub issue: https://github.com/vlang/v/issues/new/choose')
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}
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diff := time.ticks() - ticks
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// Print the C command
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if v.pref.show_c_cmd || v.pref.is_verbose {
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println('${v.pref.ccompiler} took $diff ms')
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println('=========\n')
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}
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// Link it if we are cross compiling and need an executable
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/*
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if v.os == .linux && !linux_host && v.pref.build_mode != .build {
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v.out_name = v.out_name.replace('.o', '')
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obj_file := v.out_name + '.o'
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println('linux obj_file=$obj_file out_name=$v.out_name')
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ress := os.exec('/usr/local/Cellar/llvm/8.0.0/bin/ld.lld --sysroot=$sysroot ' +
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'-v -o $v.out_name ' +
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'-m elf_x86_64 -dynamic-linker /lib64/ld-linux-x86-64.so.2 ' +
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'/usr/lib/x86_64-linux-gnu/crt1.o ' +
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'$sysroot/lib/x86_64-linux-gnu/libm-2.28.a ' +
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'/usr/lib/x86_64-linux-gnu/crti.o ' +
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obj_file +
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' /usr/lib/x86_64-linux-gnu/libc.so ' +
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'/usr/lib/x86_64-linux-gnu/crtn.o') or {
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verror(err)
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return
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}
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println(ress.output)
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println('linux cross compilation done. resulting binary: "$v.out_name"')
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}
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*/
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if !v.pref.is_keep_c && v.out_name_c != 'v.c' {
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os.rm(v.out_name_c)
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}
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if v.pref.compress {
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$if windows {
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println('-compress does not work on Windows for now')
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return
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}
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ret := os.system('strip $v.out_name')
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if ret != 0 {
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println('strip failed')
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return
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}
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ret2 := os.system('upx --lzma -qqq $v.out_name')
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if ret2 != 0 {
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println('upx failed')
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$if macos {
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println('install upx with `brew install upx`')
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}
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$if linux {
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println('install upx\n' +
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'for example, on Debian/Ubuntu run `sudo apt install upx`')
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}
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$if windows {
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// :)
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}
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}
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}
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}
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fn (c mut V) cc_windows_cross() {
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if !c.out_name.ends_with('.exe') {
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c.out_name = c.out_name + '.exe'
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}
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mut args := '-o $c.out_name -w -L. '
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cflags := c.get_os_cflags()
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// -I flags
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args += if c.pref.ccompiler == 'msvc' {
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cflags.c_options_before_target_msvc()
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} else {
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cflags.c_options_before_target()
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}
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mut libs := ''
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if c.pref.build_mode == .default_mode {
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libs = '"$v_modules_path/vlib/builtin.o"'
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if !os.exists(libs) {
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println('`$libs` not found')
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exit(1)
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}
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for imp in c.table.imports {
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libs += ' "$v_modules_path/vlib/${imp}.o"'
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}
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}
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args += ' $c.out_name_c '
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args += if c.pref.ccompiler == 'msvc' {
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cflags.c_options_after_target_msvc()
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} else {
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cflags.c_options_after_target()
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}
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println('Cross compiling for Windows...')
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winroot := '$v_modules_path/winroot'
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if !os.is_dir(winroot) {
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winroot_url := 'https://github.com/vlang/v/releases/download/v0.1.10/winroot.zip'
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println('"$winroot" not found.')
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println('Download it from $winroot_url and save it in $v_modules_path')
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println('Unzip it afterwards.\n')
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println('winroot.zip contains all library and header files needed '+
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'to cross-compile for Windows.')
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exit(1)
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}
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mut obj_name := c.out_name
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obj_name = obj_name.replace('.exe', '')
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obj_name = obj_name.replace('.o.o', '.o')
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include := '-I $winroot/include '
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cmd := 'clang -o $obj_name -w $include -m32 -c -target x86_64-win32 $v_modules_path/$c.out_name_c'
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if c.pref.show_c_cmd {
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println(cmd)
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}
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if os.system(cmd) != 0 {
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println('Cross compilation for Windows failed. Make sure you have clang installed.')
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exit(1)
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}
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if c.pref.build_mode != .build_module {
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link_cmd := 'lld-link $obj_name $winroot/lib/libcmt.lib ' +
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'$winroot/lib/libucrt.lib $winroot/lib/kernel32.lib $winroot/lib/libvcruntime.lib ' +
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'$winroot/lib/uuid.lib'
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if c.pref.show_c_cmd {
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println(link_cmd)
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}
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|
|
if os.system(link_cmd) != 0 {
|
|
println('Cross compilation for Windows failed. Make sure you have lld linker installed.')
|
|
exit(1)
|
|
}
|
|
// os.rm(obj_name)
|
|
}
|
|
println('Done!')
|
|
}
|
|
|
|
fn (c &V) build_thirdparty_obj_files() {
|
|
for flag in c.get_os_cflags() {
|
|
if flag.value.ends_with('.o') {
|
|
rest_of_module_flags := c.get_rest_of_module_cflags( flag )
|
|
if c.pref.ccompiler == 'msvc' || c.no_cc_installed() {
|
|
build_thirdparty_obj_file_with_msvc(flag.value, rest_of_module_flags)
|
|
}
|
|
else {
|
|
build_thirdparty_obj_file(flag.value, rest_of_module_flags)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
fn find_c_compiler() string {
|
|
args := env_vflags_and_os_args().join(' ')
|
|
defaultcc := find_c_compiler_default()
|
|
return get_arg( args, 'cc', defaultcc )
|
|
}
|
|
|
|
fn find_c_compiler_default() string {
|
|
//fast_clang := '/usr/local/Cellar/llvm/8.0.0/bin/clang'
|
|
//if os.exists(fast_clang) {
|
|
// return fast_clang
|
|
//}
|
|
// TODO fix $if after 'string'
|
|
$if windows { return 'gcc' }
|
|
return 'cc'
|
|
}
|
|
|
|
fn find_c_compiler_thirdparty_options() string {
|
|
fullargs := env_vflags_and_os_args()
|
|
mut cflags := get_cmdline_cflags( fullargs )
|
|
$if !windows {
|
|
cflags += ' -fPIC'
|
|
}
|
|
if '-m32' in fullargs {
|
|
cflags += ' -m32'
|
|
}
|
|
return cflags
|
|
}
|
|
|
|
fn get_cmdline_cflags(args []string) string {
|
|
mut cflags := ''
|
|
for ci, cv in args {
|
|
if cv == '-cflags' {
|
|
cflags += args[ci+1] + ' '
|
|
}
|
|
}
|
|
return cflags
|
|
}
|
|
|
|
fn missing_compiler_info() string {
|
|
$if windows {
|
|
return 'https://github.com/vlang/v/wiki/Installing-a-C-compiler-on-Windows'
|
|
}
|
|
$if linux {
|
|
return 'On Debian/Ubuntu, run `sudo apt install build-essential`'
|
|
}
|
|
$if macos {
|
|
return 'Install command line XCode tools with `xcode-select --install`'
|
|
}
|
|
return ''
|
|
}
|