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module main
import os
#flag windows -l shell32
struct MsvcResult {
exe_path string
um_lib_path string
ucrt_lib_path string
vs_lib_path string
um_include_path string
ucrt_include_path string
vs_include_path string
shared_include_path string
}
// Mimics a HKEY
type RegKey voidptr
// Taken from the windows SDK
const (
HKEY_LOCAL_MACHINE = RegKey(0x80000002)
KEY_QUERY_VALUE = (0x0001)
KEY_WOW64_32KEY = (0x0200)
KEY_ENUMERATE_SUB_KEYS = (0x0008)
)
// Given a root key look for one of the subkeys in 'versions' and get the path
fn find_windows_kit_internal(key RegKey, versions []string) ?string {
$if windows {
for version in versions {
required_bytes := 0 // TODO mut
result := C.RegQueryValueExW(key, version.to_wide(), 0, 0, 0, &required_bytes)
length := required_bytes / 2
if result != 0 {
continue
}
alloc_length := (required_bytes + 2)
mut value := &u16(malloc(alloc_length))
if !value {
continue
}
result2 := C.RegQueryValueExW(key, version.to_wide(), 0, 0, value, &alloc_length)
if result2 != 0 {
continue
}
// We might need to manually null terminate this thing
// So just make sure that we do that
if (value[length - 1] != u16(0)) {
value[length] = u16(0)
}
return string_from_wide(value)
}
}
return error('windows kit not found')
}
struct WindowsKit {
um_lib_path string
ucrt_lib_path string
um_include_path string
ucrt_include_path string
shared_include_path string
}
// Try and find the root key for installed windows kits
fn find_windows_kit_root() ?WindowsKit {
$if windows {
root_key := RegKey(0)
rc := C.RegOpenKeyExA(
HKEY_LOCAL_MACHINE, 'SOFTWARE\\Microsoft\\Windows Kits\\Installed Roots', 0, KEY_QUERY_VALUE | KEY_WOW64_32KEY | KEY_ENUMERATE_SUB_KEYS, &root_key)
defer {C.RegCloseKey(root_key)}
if rc != 0 {
return error('Unable to open root key')
}
// Try and find win10 kit
kit_root := find_windows_kit_internal(root_key, ['KitsRoot10', 'KitsRoot81']) or {
return error('Unable to find a windows kit')
}
kit_lib := kit_root + 'Lib'
// println(kit_lib)
files := os.ls(kit_lib)
mut highest_path := ''
mut highest_int := 0
for f in files {
no_dot := f.replace('.', '')
v_int := no_dot.int()
if v_int > highest_int {
highest_int = v_int
highest_path = f
}
}
kit_lib_highest := kit_lib + '\\$highest_path'
kit_include_highest := kit_lib_highest.replace('Lib', 'Include')
// println('$kit_lib_highest $kit_include_highest')
return WindowsKit {
um_lib_path: kit_lib_highest + '\\um\\x64'
ucrt_lib_path: kit_lib_highest + '\\ucrt\\x64'
um_include_path: kit_include_highest + '\\um'
ucrt_include_path: kit_include_highest + '\\ucrt'
shared_include_path: kit_include_highest + '\\shared'
}
}
return error('Host OS does not support funding a windows kit')
}
struct VsInstallation {
include_path string
lib_path string
exe_path string
}
fn find_vs() ?VsInstallation {
$if !windows {
return error('Host OS does not support finding a Vs installation')
}
// Emily:
// VSWhere is guaranteed to be installed at this location now
// If its not there then end user needs to update their visual studio
// installation!
res := os.exec('""%ProgramFiles(x86)%\\Microsoft Visual Studio\\Installer\\vswhere.exe" -latest -products * -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64 -property installationPath"') or {
return error(err)
}
// println('res: "$res"')
version := os.read_file('$res.output\\VC\\Auxiliary\\Build\\Microsoft.VCToolsVersion.default.txt') or {
println('Unable to find msvc version')
return error('Unable to find vs installation')
}
// println('version: $version')
v := if version.ends_with('\n') {
version.left(version.len - 2)
} else {
version
}
lib_path := '$res.output\\VC\\Tools\\MSVC\\$v\\lib\\x64'
include_path := '$res.output\\VC\\Tools\\MSVC\\$v\\include'
if os.file_exists('$lib_path\\vcruntime.lib') {
p := '$res.output\\VC\\Tools\\MSVC\\$v\\bin\\Hostx64\\x64'
// println('$lib_path $include_path')
return VsInstallation{
exe_path: p
lib_path: lib_path
include_path: include_path
}
}
println('Unable to find vs installation (attempted to use lib path "$lib_path")')
return error('Unable to find vs exe folder')
}
fn find_msvc() ?MsvcResult {
$if windows {
wk := find_windows_kit_root() or {
return error('Unable to find windows sdk')
}
vs := find_vs() or {
return error('Unable to find visual studio')
}
return MsvcResult {
exe_path: vs.exe_path,
um_lib_path: wk.um_lib_path,
ucrt_lib_path: wk.ucrt_lib_path,
vs_lib_path: vs.lib_path,
um_include_path: wk.um_include_path,
ucrt_include_path: wk.ucrt_include_path,
vs_include_path: vs.include_path,
shared_include_path: wk.shared_include_path,
}
}
$else {
panic('Cannot find msvc on this OS')
}
}
struct ParsedFlag {
f string
arg string
}
pub fn (v mut V) cc_msvc() {
r := find_msvc() or {
// TODO: code reuse
if !v.pref.is_debug && v.out_name_c != 'v.c' && v.out_name_c != 'v_macos.c' {
os.rm('.$v.out_name_c')
}
panic('Cannot find MSVC on this OS.')
}
out_name_obj := v.out_name_c + '.obj'
// Default arguments
// volatile:ms enables atomic volatile (gcc _Atomic)
// -w: no warnings
// 2 unicode defines
// /Fo sets the object file name - needed so we can clean up after ourselves properly
mut a := ['-w', '/volatile:ms', '/D_UNICODE', '/DUNICODE', '/Fo$out_name_obj']
if v.pref.is_prod {
a << '/O2'
a << '/MD'
} else {
a << '/Z7'
a << '/MDd'
}
if v.pref.is_so {
if !v.out_name.ends_with('.dll') {
v.out_name = v.out_name + '.dll'
}
// Build dll
a << '/LD'
} else if !v.out_name.ends_with('.exe') {
v.out_name = v.out_name + '.exe'
}
mut libs := ''// builtin.o os.o http.o etc
if v.pref.build_mode == .build {
}
else if v.pref.build_mode == .embed_vlib {
//
}
else if v.pref.build_mode == .default_mode {
libs = '"$ModPath/vlib/builtin.obj"'
if !os.file_exists(libs) {
println('`builtin.obj` not found')
exit(1)
}
for imp in v.table.imports {
if imp == 'webview' {
continue
}
libs += ' "$ModPath/vlib/${imp}.obj"'
}
}
if v.pref.sanitize {
println('Sanitize not supported on msvc.')
}
// The C file we are compiling
//a << '"$TmpPath/$v.out_name_c"'
a << '".$v.out_name_c"'
// Emily:
// Not all of these are needed (but the compiler should discard them if they are not used)
// these are the defaults used by msbuild and visual studio
mut real_libs := [
'kernel32.lib',
'user32.lib',
'gdi32.lib',
'winspool.lib',
'comdlg32.lib',
'advapi32.lib',
'shell32.lib',
'ole32.lib',
'oleaut32.lib',
'uuid.lib',
'odbc32.lib',
'odbccp32.lib',
'vcruntime.lib',
]
mut lib_paths := []string{}
mut other_flags := []string{}
// Emily:
// this is a hack to try and support -l -L and object files
// passed on the command line
for f in v.table.flags {
// People like to put multiple flags per line (which really complicates things)
// ...so we need to handle that
mut rest := f
mut flags := []ParsedFlag{}
for {
mut base := rest
fl := if rest.starts_with('-') {
base = rest.right(2).trim_space()
rest.left(2)
} else {
''
}
// Which ever one of these is lowest we use
// TODO: we really shouldnt support all of these cmon
mut lowest := base.index('-')
for x in [base.index(' '), base.index(',')] {
if (x < lowest && x != -1) || lowest == -1 {
lowest = x
}
}
arg := if lowest != -1 {
rest = base.right(lowest).trim_space().trim(',')
base.left(lowest).trim_space().trim(',')
} else {
rest = ''
base.trim_space()
}
flags << ParsedFlag {
fl, arg
}
if rest.len == 0 {
break
}
}
for flag in flags {
fl := flag.f
arg := flag.arg
// We need to see if the flag contains -l
// -l isnt recognised and these libs will be passed straight to the linker
// by the compiler
if fl == '-l' {
if arg.ends_with('.dll') {
panic('MSVC cannot link against a dll (`#flag -l $arg`)')
}
// MSVC has no method of linking against a .dll
// TODO: we should look for .defs aswell
lib_lib := arg + '.lib'
real_libs << lib_lib
}
else if fl == '-L' {
lib_paths << f.right(2).trim_space()
}
else if arg.ends_with('.o') {
// msvc expects .obj not .o
other_flags << arg + 'bj'
}
else {
other_flags << arg
}
}
}
// Include the base paths
a << '-I "$r.ucrt_include_path" -I "$r.vs_include_path" -I "$r.um_include_path" -I "$r.shared_include_path"'
a << other_flags
// Libs are passed to cl.exe which passes them to the linker
a << real_libs.join(' ')
a << '/link'
a << '/NOLOGO'
a << '/OUT:$v.out_name'
a << '/LIBPATH:"$r.ucrt_lib_path"'
a << '/LIBPATH:"$r.um_lib_path"'
a << '/LIBPATH:"$r.vs_lib_path"'
a << '/INCREMENTAL:NO' // Disable incremental linking
for l in lib_paths {
a << '/LIBPATH:"$l"'
}
if !v.pref.is_prod {
a << '/DEBUG:FULL'
} else {
a << '/DEBUG:NONE'
}
args := a.join(' ')
// println('$args')
// println('$exe_path')
escaped_path := r.exe_path
cmd := '""$escaped_path\\cl.exe" $args"'
// println('$cmd')
_ := os.exec(cmd) or {
println(err)
panic('msvc error')
}
// println(res)
// println('C OUTPUT:')
if !v.pref.is_debug && v.out_name_c != 'v.c' && v.out_name_c != 'v_macos.c' {
os.rm('.$v.out_name_c')
}
// Always remove the object file - it is completely unnecessary
os.rm('$out_name_obj')
}
fn build_thirdparty_obj_file_with_msvc(flag string) {
msvc := find_msvc() or {
println('Could not find visual studio')
return
}
mut obj_path := flag.all_after(' ')
if obj_path.ends_with('.o') {
// msvc expects .obj not .o
obj_path = obj_path + 'bj'
}
if os.file_exists(obj_path) {
return
}
println('$obj_path not found, building it (with msvc)...')
parent := obj_path.all_before_last('/').trim_space()
files := os.ls(parent)
mut cfiles := ''
for file in files {
if file.ends_with('.c') {
cfiles += parent + '/' + file + ' '
}
}
include_string := '-I "$msvc.ucrt_include_path" -I "$msvc.vs_include_path" -I "$msvc.um_include_path" -I "$msvc.shared_include_path"'
println('$cfiles')
res := os.exec('""$msvc.exe_path\\cl.exe" /volatile:ms /Z7 $include_string /c $cfiles /Fo"$obj_path" /D_UNICODE /DUNICODE"') or {
panic(err)
}
println(res.output)
}