557 lines
16 KiB
V
557 lines
16 KiB
V
// Copyright (c) 2019-2020 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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v.pref
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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 := filepath.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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ends_with_c := v.pref.out_name.ends_with('.c')
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ends_with_js := v.pref.out_name.ends_with('.js')
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if v.pref.is_pretty_c && !ends_with_js {
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format_result := os.exec('clang-format -i -style=file "$v.out_name_c"') or {
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eprintln('clang-format not found')
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os.Result{exit_code:-1}
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}
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if format_result.exit_code > 0 {
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eprintln('clang-format failed to format $v.out_name_c')
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eprintln(format_result.output)
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}
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}
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if ends_with_c || ends_with_js {
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// Translating V code to JS by launching vjs.
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// Using a separate process for V.js is for performance mostly,
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// to avoid constant is_js checks.
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$if !js {
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if 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 $vdir/cmd/v')
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if ret == 0 {
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println('Done.')
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}
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else {
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println('Failed.')
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exit(1)
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}
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}
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ret := os.system('$vjs_path -o $v.pref.out_name $v.pref.path')
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if ret == 0 {
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println('Done. Run it with `node $v.pref.out_name`')
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println('JS backend is at a very early stage.')
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}
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}
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}
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// v.out_name_c may be on a different partition than v.out_name
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os.mv_by_cp(v.out_name_c, v.pref.out_name)or{
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panic(err)
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}
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exit(0)
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}
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// Cross compiling for Windows
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if v.pref.os == .windows {
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$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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$if windows {
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if v.pref.ccompiler == 'msvc' || v.no_cc_installed() {
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v.cc_msvc()
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return
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}
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}
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// arguments for the C compiler
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mut a := [v.pref.cflags, '-std=gnu11', '-Wall', '-Wextra',
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// TODO : activate -Werror once no warnings remain
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// '-Werror',
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// TODO : try and remove the below workaround options when the corresponding
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// warnings are totally fixed/removed
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'-Wno-unused-variable',
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// '-Wno-unused-but-set-variable',
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'-Wno-unused-parameter', '-Wno-unused-result', '-Wno-unused-function', '-Wno-missing-braces', '-Wno-unused-label']
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// TCC on Linux by default, unless -cc was provided
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// TODO if -cc = cc, TCC is still used, default compiler should be
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// used instead.
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if v.pref.fast {
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$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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} $else {
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verror('-fast is only supported on Linux right now')
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}
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}
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if !v.pref.is_so
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&& v.pref.build_mode != .build_module
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&& os.user_os() == 'windows'
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&& !v.pref.out_name.ends_with('.exe')
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{
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v.pref.out_name += '.exe'
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}
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// linux_host := os.user_os() == 'linux'
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v.log('cc() isprod=$v.pref.is_prod outname=$v.pref.out_name')
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if v.pref.is_so {
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a << '-shared -fPIC ' // -Wl,-z,defs'
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v.pref.out_name += '.so'
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}
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if v.pref.is_bare {
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a << '-fno-stack-protector -static -ffreestanding -nostdlib'
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}
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if v.pref.build_mode == .build_module {
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// Create the modules & out directory if it's not there.
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mut out_dir := if v.pref.path.starts_with('vlib') { '$v_modules_path${filepath.separator}cache${filepath.separator}$v.pref.path' } else { '$v_modules_path${filepath.separator}$v.pref.path' }
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pdir := out_dir.all_before_last(filepath.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.pref.out_name = '${out_dir}.o' // v.out_name
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println('Building ${v.pref.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;') && 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'
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mut have_flto := true
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$if openbsd {
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have_flto = false
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}
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if have_flto {
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optimization_options += ' -flto'
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}
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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.pref.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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}
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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${filepath.separator}builtin')
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}
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for imp in v.table.imports {
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if imp.contains('vweb') {
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continue
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} // not working
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if imp == 'webview' {
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continue
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}
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imp_path := imp.replace('.', filepath.separator)
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path := '$v_modules_path${filepath.separator}cache${filepath.separator}vlib${filepath.separator}${imp_path}.o'
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// println('adding ${imp_path}.o')
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if os.exists(path) {
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libs += ' ' + path
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}
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else {
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println('$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{
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panic('error copying ui files')
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}
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os.cp('$vdir/thirdparty/ui/ui.vh', v_modules_path + '/vlib/ui.vh')or{
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panic('error copying ui files')
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}
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}
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else {
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os.system('$vexe build module vlib${filepath.separator}$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.pref.out_name"'
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if os.is_dir(v.pref.out_name) {
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verror("\'$v.pref.out_name\' is a directory")
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}
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// macOS code can include objective C TODO remove once objective C is replaced with C
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if v.pref.os == .mac {
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a << '-x objective-c'
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}
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// The C file we are compiling
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a << '"$v.out_name_c"'
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if v.pref.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.pref.os == .mac {
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a << '-mmacosx-version-min=10.7'
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}
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if v.pref.os == .windows {
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a << '-municode'
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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.pref.os in [.linux, .freebsd, .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.pref.os == .linux {
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a << ' -ldl '
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}
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if v.pref.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.pref.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' + '-----------------------------------------------------------\n' + '$cmd\n' + '-----------------------------------------------------------\n' + 'Probably your C compiler is missing. \n' + 'Please reinstall it, or make it available in your PATH.\n\n' + 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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verror("
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==================
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C error. This should never happen.
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V compiler version: V $Version $vhash()
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Host OS: ${pref.get_host_os().str()}
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Target OS: $v.pref.os.str()
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If you were not working with C interop and are not sure about what's happening,
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please put the whole output in a pastebin and contact us through the following ways with a link to the pastebin:
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- Raise an issue on GitHub: https://github.com/vlang/v/issues/new/choose
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- Ask a question in #help on Discord: https://discord.gg/vlang")
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}
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else {
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if res.output.len < 30 {
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println(res.output)
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} else {
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q := res.output.all_after('error: ').limit(150)
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println('==================')
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println(q)
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println('...')
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println('==================')
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println('(Use `v -cg` to print the entire error message)\n')
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}
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verror("C error.
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Please make sure that:
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- You have all V dependencies installed.
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- You did not declare a C function that was not included. (Try commenting your code that involves C interop)
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- You are running the latest version of V. (Try running `v up` and rerunning your command)
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If you're confident that all of the above is true, please try running V with the `-cg` option which enables more debugging capabilities.\n")
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}
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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.pref.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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// NB: upx --lzma can sometimes fail with NotCompressibleException
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// See https://github.com/vlang/v/pull/3528
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mut ret2 := os.system('upx --lzma -qqq $v.pref.out_name')
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if ret2 != 0 {
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ret2 = os.system('upx -qqq $v.pref.out_name')
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}
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if ret2 != 0 {
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println('upx failed')
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$if macos {
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println('install upx with `brew install upx`')
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}
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$if linux {
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println('install upx\n' + 'for example, on Debian/Ubuntu run `sudo apt install upx`')
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}
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$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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println('Cross compiling for Windows...')
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if !c.pref.out_name.ends_with('.exe') {
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c.pref.out_name += '.exe'
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}
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mut args := '-o $c.pref.out_name -w -L. '
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cflags := c.get_os_cflags()
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// -I flags
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args += if c.pref.ccompiler == 'msvc' { cflags.c_options_before_target_msvc() } else { cflags.c_options_before_target() }
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mut libs := ''
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if false && c.pref.build_mode == .default_mode {
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libs = '"$v_modules_path/vlib/builtin.o"'
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if !os.exists(libs) {
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println('`$libs` not found')
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exit(1)
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|
}
|
|
for imp in c.table.imports {
|
|
libs += ' "$v_modules_path/vlib/${imp}.o"'
|
|
}
|
|
}
|
|
args += ' $c.out_name_c '
|
|
|
|
args += if c.pref.ccompiler == 'msvc' { cflags.c_options_after_target_msvc() } else { cflags.c_options_after_target() }
|
|
|
|
/*
|
|
winroot := '$v_modules_path/winroot'
|
|
if !os.is_dir(winroot) {
|
|
winroot_url := 'https://github.com/vlang/v/releases/download/v0.1.10/winroot.zip'
|
|
println('"$winroot" not found.')
|
|
println('Download it from $winroot_url and save it in $v_modules_path')
|
|
println('Unzip it afterwards.\n')
|
|
println('winroot.zip contains all library and header files needed ' + 'to cross-compile for Windows.')
|
|
exit(1)
|
|
}
|
|
mut obj_name := c.out_name
|
|
obj_name = obj_name.replace('.exe', '')
|
|
obj_name = obj_name.replace('.o.o', '.o')
|
|
include := '-I $winroot/include '
|
|
*/
|
|
mut cmd := ''
|
|
cmd = ''
|
|
$if macos {
|
|
cmd = 'x86_64-w64-mingw32-gcc -std=gnu11 $args -municode'
|
|
}
|
|
$else {
|
|
panic('your platform is not supported yet')
|
|
}
|
|
|
|
println(cmd)
|
|
//cmd := 'clang -o $obj_name -w $include -m32 -c -target x86_64-win32 $v_modules_path/$c.out_name_c'
|
|
if c.pref.show_c_cmd {
|
|
println(cmd)
|
|
}
|
|
if os.system(cmd) != 0 {
|
|
println('Cross compilation for Windows failed. Make sure you have clang installed.')
|
|
exit(1)
|
|
}
|
|
/*
|
|
if c.pref.build_mode != .build_module {
|
|
link_cmd := 'lld-link $obj_name $winroot/lib/libcmt.lib ' + '$winroot/lib/libucrt.lib $winroot/lib/kernel32.lib $winroot/lib/libvcruntime.lib ' + '$winroot/lib/uuid.lib'
|
|
if c.pref.show_c_cmd {
|
|
println(link_cmd)
|
|
}
|
|
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 {
|
|
c.build_thirdparty_obj_file(flag.value, rest_of_module_flags)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
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 ''
|
|
}
|