mirror of
https://github.com/vlang/v.git
synced 2023-08-10 21:13:21 +03:00
401 lines
10 KiB
V
401 lines
10 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 main
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import (
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os
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time
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)
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fn (v mut V) cc() {
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v.build_thirdparty_obj_files()
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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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$if !js {
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if v.out_name.ends_with('.js') {
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vexe := os.executable()
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vjs_path := vexe + 'js'
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dir := os.dir(vexe)
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if !os.file_exists(vjs_path) {
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println('V.js compiler not found, building...')
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ret := os.system('$vexe -o $vjs_path -os js $dir/compiler')
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if ret == 0 {
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println('Done.')
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} else {
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println('Failed.')
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exit(1)
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}
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}
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ret := os.system('$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 $v.out_name`')
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println('JS backend is at a very early stage.')
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}
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}
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}
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os.mv(v.out_name_c, v.out_name)
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exit(0)
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}
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// Cross compiling for Windows
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if v.os == .windows {
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$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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$if windows {
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if v.os == .msvc {
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v.cc_msvc()
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return
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}
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}
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//linux_host := os.user_os() == 'linux'
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v.log('cc() isprod=$v.pref.is_prod outname=$v.out_name')
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mut a := [v.pref.cflags, '-std=gnu11', '-w'] // arguments for the C compiler
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if v.pref.is_so {
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a << '-shared -fPIC '// -Wl,-z,defs'
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v.out_name = v.out_name + '.so'
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}
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if v.pref.build_mode == .build_module {
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// Create the modules & out directory if it's not there.
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out_dir := '$v_modules_path${os.PathSeparator}$v.dir'
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if !os.dir_exists(out_dir) {
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os.mkdir(out_dir)
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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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mut debug_options := ''
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mut optimization_options := '-O2'
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if v.pref.ccompiler.contains('clang') {
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if v.pref.is_debuggable {
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debug_options = '-g -O0'
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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') {
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if v.pref.is_debug {
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debug_options = '-g3'
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}
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optimization_options = '-O3 -fno-strict-aliasing -flto'
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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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else {
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a << debug_options
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}
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if v.pref.is_debuggable && 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.os != .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_debug {
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vexe := os.executable()
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builtin_o_path := '$v_modules_path/vlib/builtin.o'
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if os.file_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/builtin')
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}
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for imp in v.table.imports {
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if imp == 'webview' {
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continue
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}
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path := '$v_modules_path/vlib/${imp}.o'
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println('adding ${imp}.o')
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if os.file_exists(path) {
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libs += ' ' + path
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} else {
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println('$path not found... building module $imp')
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os.system('$vexe build module vlib/$imp')
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}
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}
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}
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if v.pref.sanitize {
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a << '-fsanitize=leak'
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}
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// Cross compiling linux TODO
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/*
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sysroot := '/tmp/lld/linuxroot/'
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if v.os == .linux && !linux_host {
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// Build file.o
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a << '-c --sysroot=$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 "$v.out_name"'
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if os.dir_exists(v.out_name) {
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verror('\'$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.build_mode != .build_module && (v.os == .linux || v.os == .freebsd || v.os == .openbsd ||
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v.os == .netbsd || v.os == .dragonfly || v.os == .solaris) {
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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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}
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if 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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cmd := '${v.pref.ccompiler} $args'
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// Run
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if v.pref.show_c_cmd || v.pref.is_verbose {
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println('\n==========')
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println(cmd)
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}
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ticks := time.ticks()
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res := os.exec(cmd) or { verror(err) return }
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if res.exit_code != 0 {
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if res.exit_code == 127 {
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// the command could not be found by the system
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verror('C compiler error, while attempting to run: \n' +
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'-----------------------------------------------------------\n' +
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'$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.')
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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 -debug` 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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'Please 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: "$v.out_name"')
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}
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*/
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if !v.pref.is_debug && v.out_name_c != 'v.c' {
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os.rm(v.out_name_c)
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}
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if v.pref.compress {
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$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 mac {
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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 $c.out_name -w -L. '
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cflags := c.get_os_cflags()
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// -I flags
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args += cflags.c_options_before_target()
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mut libs := ''
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if c.pref.build_mode == .default_mode {
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libs = '"$v_modules_path/vlib/builtin.o"'
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if !os.file_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 += ' $c.out_name_c '
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args += cflags.c_options_after_target()
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println('Cross compiling for Windows...')
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winroot := '$v_modules_path/winroot'
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if !os.dir_exists(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 {
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println('Cross compilation for Windows failed. Make sure you have lld linker installed.')
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exit(1)
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}
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// os.rm(obj_name)
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}
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println('Done!')
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}
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fn (c &V) build_thirdparty_obj_files() {
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for flag in c.get_os_cflags() {
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if flag.value.ends_with('.o') {
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rest_of_module_flags := c.get_rest_of_module_cflags( flag )
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if c.os == .msvc {
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build_thirdparty_obj_file_with_msvc(flag.value, rest_of_module_flags)
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}
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else {
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build_thirdparty_obj_file(flag.value, rest_of_module_flags)
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}
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}
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}
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}
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fn find_c_compiler() string {
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args := env_vflags_and_os_args().join(' ')
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defaultcc := find_c_compiler_default()
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return get_arg( args, 'cc', defaultcc )
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}
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fn find_c_compiler_default() string {
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//fast_clang := '/usr/local/Cellar/llvm/8.0.0/bin/clang'
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//if os.file_exists(fast_clang) {
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// return fast_clang
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//}
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// TODO fix $if after 'string'
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$if windows { return 'gcc' }
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return 'cc'
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}
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fn find_c_compiler_thirdparty_options() string {
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fullargs := env_vflags_and_os_args()
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mut cflags := get_cmdline_cflags( fullargs )
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$if !windows {
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cflags += ' -fPIC'
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}
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if '-m32' in fullargs {
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cflags += ' -m32'
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}
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return cflags
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}
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fn get_cmdline_cflags(args []string) string {
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mut cflags := ''
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for ci, cv in args {
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if cv == '-cflags' {
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cflags += args[ci+1] + ' '
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}
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}
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return cflags
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}
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