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compile.v
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compile.v
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// Copyright(C) 2019-2022 Lars Pontoppidan. All rights reserved.
// Use of this source code is governed by an MIT license file distributed with this software package
module android
import os
import vab.vxt
import vab.util as job_util
import vab.android.ndk
import vab.android.util
import crypto.md5
pub const supported_target_archs = ndk.supported_archs
pub const default_archs = ['arm64-v8a', 'armeabi-v7a', 'x86', 'x86_64']
pub const supported_gles_versions = [3]
pub const default_gles_version = 3
pub struct CompileOptions {
pub:
verbosity int // level of verbosity
cache bool
cache_key string
parallel bool = true // Run, what can be run, in parallel
no_so_build bool // Do not build the .so file, can be used if you're only interested in the object files
// env
work_dir string // temporary work directory
input string
//
is_prod bool
gles_version int = default_gles_version
archs []string // compile for these CPU architectures
v_flags []string // flags to pass to the v compiler
c_flags []string // flags to pass to the C compiler(s)
ndk_version string // version of the Android NDK to compile against
lib_name string // filename of the resulting .so ('${lib_name}.so')
api_level string // Android API level to use when compiling
min_sdk_version int = default_min_sdk_version
}
// verbose prints `msg` to STDOUT if `CompileOptions.verbosity` level is >= `verbosity_level`.
pub fn (co &CompileOptions) verbose(verbosity_level int, msg string) {
if co.verbosity >= verbosity_level {
println(msg)
}
}
// uses_gc returns true if a `-gc` flag is found among the passed v flags.
pub fn (opt CompileOptions) uses_gc() bool {
mut uses_gc := true // V default
for v_flag in opt.v_flags {
if v_flag.starts_with('-gc') {
if v_flag.ends_with('none') {
uses_gc = false
}
break
}
}
return uses_gc
}
// is_debug_build returns true if either `-cg` or `-g` flags is found among the passed v flags.
pub fn (opt CompileOptions) is_debug_build() bool {
return '-cg' in opt.v_flags || '-g' in opt.v_flags
}
// archs returns an array of target architectures.
pub fn (opt CompileOptions) archs() ![]string {
mut archs := []string{}
if opt.archs.len > 0 {
for arch in opt.archs.map(it.trim_space()) {
if arch in default_archs {
archs << arch
} else {
return error(@MOD + '.' + @FN +
': Architechture "${arch}" not one of ${default_archs}')
}
}
}
return archs
}
// build_directory returns the compile build directory.
pub fn (opt CompileOptions) build_directory() !string {
dir := os.join_path(opt.work_dir, 'build')
return dir
}
pub enum CompileType {
v_to_c
c_to_o
o_to_so
}
pub struct CompileError {
Error
pub:
kind CompileType
err string
}
fn (err CompileError) msg() string {
enum_to_text := match err.kind {
.v_to_c {
'.v to .c'
}
.c_to_o {
'.c to .o'
}
.o_to_so {
'.o to .so'
}
}
return 'failed to compile ${enum_to_text}:\n${err.err}'
}
// compile_v_to_c compiles V sources to their Android compatible C counterpart.
// compile_v_to_c will also compile any supported C dependencies a vlib module might have.
// See also: compile_v_imports_c_dependencies
pub fn compile_v_to_c(opt CompileOptions) !VMetaInfo {
err_sig := @MOD + '.' + @FN
os.mkdir_all(opt.work_dir) or {
return error('${err_sig}: failed making directory "${opt.work_dir}". ${err}')
}
if opt.verbosity > 0 {
println('Compiling V to C')
if opt.v_flags.len > 0 {
println('V flags: `${opt.v_flags}`')
}
}
v_compile_opt := VCompileOptions{
verbosity: opt.verbosity
cache: opt.cache
flags: opt.v_flags
work_dir: os.join_path(opt.work_dir, 'v')
input: opt.input
}
v_meta_dump := v_dump_meta(v_compile_opt)!
imported_modules := v_meta_dump.imports
if imported_modules.len == 0 {
return error('${err_sig}: empty module dump.')
}
v_output_file := os.join_path(opt.work_dir, 'v_android.c')
// Boehm-Demers-Weiser Garbage Collector (bdwgc / libgc)
uses_gc := opt.uses_gc()
if opt.verbosity > 1 {
println('Garbage collection is ${uses_gc}')
}
vexe := vxt.vexe()
// Compile to Android compatible C file
mut v_cmd := [
vexe,
'-os android',
]
if !uses_gc {
v_cmd << '-gc none'
}
if 'sokol.sapp' in imported_modules {
v_cmd << '-apk'
} else {
v_cmd << '-d no_sokol_app'
}
if !opt.cache {
v_cmd << '-nocache'
}
v_cmd << opt.v_flags
v_cmd << [
'-o "${v_output_file}"',
]
v_cmd << opt.input
util.verbosity_print_cmd(v_cmd, opt.verbosity)
v_dump_res := util.run_or_error(v_cmd)!
if opt.verbosity > 2 {
println(v_dump_res)
}
return v_meta_dump
}
pub fn compile(opt CompileOptions) ! {
err_sig := @MOD + '.' + @FN
os.mkdir_all(opt.work_dir) or {
return error('${err_sig}: failed making directory "${opt.work_dir}". ${err}')
}
build_dir := opt.build_directory()!
v_meta_dump := compile_v_to_c(opt) or {
return IError(CompileError{
kind: .v_to_c
err: err.msg()
})
}
v_cflags := v_meta_dump.c_flags
imported_modules := v_meta_dump.imports
v_output_file := os.join_path(opt.work_dir, 'v_android.c')
v_thirdparty_dir := os.join_path(vxt.home(), 'thirdparty')
uses_gc := opt.uses_gc()
// Poor man's cache check
mut hash := ''
hash_file := os.join_path(opt.work_dir, 'v_android.hash')
if opt.cache && os.exists(build_dir) && os.exists(v_output_file) {
mut bytes := os.read_bytes(v_output_file) or {
return error('${err_sig}: failed reading "${v_output_file}".\n${err}')
}
bytes << '${opt.str()}-${opt.cache_key}'.bytes()
hash = md5.sum(bytes).hex()
if os.exists(hash_file) {
prev_hash := os.read_file(hash_file) or { '' }
if hash == prev_hash {
if opt.verbosity > 1 {
println('Skipping compile. Hashes match ${hash}')
}
return
}
}
}
if hash != '' && os.exists(v_output_file) {
if opt.verbosity > 2 {
println('Writing new hash ${hash}')
}
os.rm(hash_file) or {}
mut hash_fh := os.open_file(hash_file, 'w+', 0o700) or {
return error('${err_sig}: failed opening "${hash_file}". ${err}')
}
hash_fh.write(hash.bytes()) or {
return error('${err_sig}: failed writing to "${hash_file}".\n${err}')
}
hash_fh.close()
}
// Remove any previous builds
if os.is_dir(build_dir) {
os.rmdir_all(build_dir) or {
return error('${err_sig}: failed removing "${build_dir}": ${err}')
}
}
os.mkdir(build_dir) or {
return error('${err_sig}: failed making directory "${build_dir}".\n${err}')
}
archs := opt.archs()!
if opt.verbosity > 0 {
println('Compiling V import C dependencies (.c to .o for ${archs})' +
if opt.parallel { ' in parallel' } else { '' })
}
vicd := compile_v_c_dependencies(opt, v_meta_dump) or {
return IError(CompileError{
kind: .c_to_o
err: err.msg()
})
}
mut o_files := vicd.o_files.clone()
mut a_files := vicd.a_files.clone()
// For all compilers
mut cflags := opt.c_flags.clone()
mut includes := []string{}
mut defines := []string{}
mut ldflags := []string{}
// Grab any external C flags
for line in v_cflags {
if line.contains('.tmp.c') || line.ends_with('.o"') {
continue
}
if line.starts_with('-D') {
defines << line
}
if line.starts_with('-I') {
if line.contains('/usr/') {
continue
}
includes << line
}
if line.starts_with('-l') {
if line.contains('-lgc') {
// compiled in
continue
}
if line.contains('-lpthread') {
// pthread is built into bionic
continue
}
ldflags << line
}
}
// ... still a bit of a mess
if opt.is_prod {
cflags << ['-Os']
} else {
cflags << ['-O0']
}
cflags << ['-fPIC', '-fvisibility=hidden', '-ffunction-sections', '-fdata-sections',
'-ferror-limit=1']
cflags << ['-Wall', '-Wextra']
cflags << ['-Wno-unused-parameter'] // sokol_app.h
// TODO V compile warnings - here to make the compiler(s) shut up :/
cflags << ['-Wno-unused-variable', '-Wno-unused-result', '-Wno-unused-function',
'-Wno-unused-label']
cflags << ['-Wno-missing-braces', '-Werror=implicit-function-declaration']
cflags << ['-Wno-enum-conversion', '-Wno-unused-value', '-Wno-pointer-sign',
'-Wno-incompatible-pointer-types']
defines << '-DAPPNAME="${opt.lib_name}"'
defines << ['-DANDROID', '-D__ANDROID__', '-DANDROIDVERSION=${opt.api_level}']
// Include NDK headers
mut android_includes := []string{}
ndk_sysroot := ndk.sysroot_path(opt.ndk_version) or {
return error('${err_sig}: getting NDK sysroot path.\n${err}')
}
android_includes << '-I"' + os.join_path(ndk_sysroot, 'usr', 'include') + '"'
android_includes << '-I"' + os.join_path(ndk_sysroot, 'usr', 'include', 'android') + '"'
is_debug_build := opt.is_debug_build()
// Sokol sapp
if 'sokol.sapp' in imported_modules {
if opt.verbosity > 1 {
println('Including sokol_sapp support via sokol.sapp module')
}
if is_debug_build {
if opt.verbosity > 1 {
println('Define SOKOL_DEBUG')
}
defines << '-DSOKOL_DEBUG'
}
if opt.verbosity > 1 {
println('Using GLES ${opt.gles_version}')
}
ldflags << '-lEGL'
if opt.gles_version == 3 {
defines << ['-DSOKOL_GLES3']
ldflags << '-lGLESv3'
} else {
defines << ['-DSOKOL_GLES2']
ldflags << '-lGLESv2'
}
ldflags << ['-uANativeActivity_onCreate', '-usokol_main']
}
if uses_gc {
includes << '-I"' + os.join_path(v_thirdparty_dir, 'libgc', 'include') + '"'
}
// misc
ldflags << ['-llog', '-landroid', '-lm']
ldflags << ['-shared'] // <- Android loads native code via a library in NativeActivity
mut cflags_arm64 := ['-m64']
mut cflags_arm32 := ['-mfloat-abi=softfp', '-m32']
mut cflags_x86 := ['-march=i686', '-mssse3', '-mfpmath=sse', '-m32']
mut cflags_x86_64 := ['-march=x86-64', '-msse4.2', '-mpopcnt', '-m64']
mut arch_cc := map[string]string{}
mut arch_libs := map[string]string{}
for arch in archs {
compiler := ndk.compiler(.c, opt.ndk_version, arch, opt.api_level) or {
return error('${err_sig}: failed getting NDK compiler.\n${err}')
}
arch_cc[arch] = compiler
arch_lib := ndk.libs_path(opt.ndk_version, arch, opt.api_level) or {
return error('${err_sig}: failed getting NDK libs path.\n${err}')
}
arch_libs[arch] = arch_lib
}
mut arch_cflags := map[string][]string{}
arch_cflags['arm64-v8a'] = cflags_arm64
arch_cflags['armeabi-v7a'] = cflags_arm32
arch_cflags['x86'] = cflags_x86
arch_cflags['x86_64'] = cflags_x86_64
if opt.verbosity > 0 {
println('Compiling C output for ${archs}' + if opt.parallel { ' in parallel' } else { '' })
}
mut jobs := []job_util.ShellJob{}
for arch in archs {
arch_cflags[arch] << [
'-target ' + ndk.compiler_triplet(arch) + opt.min_sdk_version.str(),
]
if arch == 'armeabi-v7a' {
arch_cflags[arch] << ['-march=armv7-a']
}
}
// Cross compile v.c to v.o lib files
for arch in archs {
arch_o_dir := os.join_path(build_dir, 'o', arch)
if !os.is_dir(arch_o_dir) {
os.mkdir_all(arch_o_dir) or {
return error('${err_sig}: failed making directory "${arch_o_dir}". ${err}')
}
}
arch_o_file := os.join_path(arch_o_dir, '${opt.lib_name}.o')
// Compile .o
build_cmd := [
arch_cc[arch],
cflags.join(' '),
android_includes.join(' '),
includes.join(' '),
defines.join(' '),
arch_cflags[arch].join(' '),
'-c "${v_output_file}"',
'-o "${arch_o_file}"',
]
o_files[arch] << arch_o_file
jobs << job_util.ShellJob{
cmd: build_cmd
}
}
job_util.run_jobs(jobs, opt.parallel, opt.verbosity) or {
return IError(CompileError{
kind: .c_to_o
err: err.msg()
})
}
jobs.clear()
if opt.no_so_build && opt.verbosity > 1 {
println('Skipping .so build since .no_so_build == true')
}
// Cross compile .o files to .so lib file
if !opt.no_so_build {
for arch in archs {
arch_lib_dir := os.join_path(build_dir, 'lib', arch)
os.mkdir_all(arch_lib_dir) or {
return error('${err_sig}: failed making directory "${arch_lib_dir}".\n${err}')
}
arch_o_files := o_files[arch].map('"${it}"')
arch_a_files := a_files[arch].map('"${it}"')
build_cmd := [
arch_cc[arch],
arch_o_files.join(' '),
'-o "${arch_lib_dir}/lib${opt.lib_name}.so"',
arch_a_files.join(' '),
'-L"' + arch_libs[arch] + '"',
ldflags.join(' '),
]
jobs << job_util.ShellJob{
cmd: build_cmd
}
}
job_util.run_jobs(jobs, opt.parallel, opt.verbosity) or {
return IError(CompileError{
kind: .o_to_so
err: err.msg()
})
}
if 'armeabi-v7a' in archs {
// TODO fix DT_NAME crash instead of including a copy of the armeabi-v7a lib
armeabi_lib_dir := os.join_path(build_dir, 'lib', 'armeabi')
os.mkdir_all(armeabi_lib_dir) or {
return error('${err_sig}: failed making directory "${armeabi_lib_dir}".\n${err}')
}
armeabi_lib_src := os.join_path(build_dir, 'lib', 'armeabi-v7a', 'lib${opt.lib_name}.so')
armeabi_lib_dst := os.join_path(armeabi_lib_dir, 'lib${opt.lib_name}.so')
os.cp(armeabi_lib_src, armeabi_lib_dst) or {
return error('${err_sig}: failed copying "${armeabi_lib_src}" to "${armeabi_lib_dst}".\n${err}')
}
}
}
}
pub struct VCompileOptions {
pub:
verbosity int // level of verbosity
cache bool
work_dir string // temporary work directory
input string
flags []string // flags to pass to the v compiler
}
// uses_gc returns true if a `-gc` flag is found among the passed v flags.
pub fn (opt VCompileOptions) uses_gc() bool {
mut uses_gc := true // V default
for v_flag in opt.flags {
if v_flag.starts_with('-gc') {
if v_flag.ends_with('none') {
uses_gc = false
}
break
}
}
return uses_gc
}
pub struct VMetaInfo {
pub:
imports []string
c_flags []string
}
// v_dump_meta returns the information dumped by
// -dump-modules and -dump-c-flags.
pub fn v_dump_meta(opt VCompileOptions) !VMetaInfo {
err_sig := @MOD + '.' + @FN
os.mkdir_all(opt.work_dir) or {
return error('${err_sig}: failed making directory "${opt.work_dir}". ${err}')
}
vexe := vxt.vexe()
uses_gc := opt.uses_gc()
// Dump modules and C flags to files
v_cflags_file := os.join_path(opt.work_dir, 'v.cflags')
os.rm(v_cflags_file) or {}
v_dump_modules_file := os.join_path(opt.work_dir, 'v.modules')
os.rm(v_dump_modules_file) or {}
mut v_cmd := [
vexe,
'-os android',
]
if !uses_gc {
v_cmd << '-gc none'
}
if !opt.cache {
v_cmd << '-nocache'
}
v_cmd << opt.flags
v_cmd << [
'-cc clang',
'-dump-modules "${v_dump_modules_file}"',
'-dump-c-flags "${v_cflags_file}"',
]
v_cmd << opt.input
// NOTE this command fails with a C compile error but the output we need is still
// present... Yes - not exactly pretty.
// VCROSS_COMPILER_NAME is needed (on at least Windows) - just get whatever compiler is available
os.setenv('VCROSS_COMPILER_NAME', ndk.compiler_min_api(.c, ndk.default_version(),
'arm64-v8a') or { '' }, true)
util.verbosity_print_cmd(v_cmd, opt.verbosity)
v_dump_res := util.run(v_cmd)
if opt.verbosity > 3 {
println(v_dump_res)
}
// Read in the dumped cflags
cflags := os.read_file(v_cflags_file) or {
flat_cmd := v_cmd.join(' ')
return error('${err_sig}: failed reading C flags to "${v_cflags_file}". ${err}\nCompile output of `${flat_cmd}`:\n${v_dump_res}')
}
// Parse imported modules from dump
mut imported_modules := os.read_file(v_dump_modules_file) or {
flat_cmd := v_cmd.join(' ')
return error('${err_sig}: failed reading module dump file "${v_dump_modules_file}". ${err}\nCompile output of `${flat_cmd}`:\n${v_dump_res}')
}.split('\n').filter(it != '')
imported_modules.sort()
if opt.verbosity > 2 {
println('Imported modules: ${imported_modules}')
}
return VMetaInfo{
imports: imported_modules
c_flags: cflags.split('\n')
}
}
struct VImportCDeps {
pub:
o_files map[string][]string
a_files map[string][]string
}
// compile_v_c_dependencies compiles the C dependencies in the V code.
pub fn compile_v_c_dependencies(opt CompileOptions, v_meta_info VMetaInfo) !VImportCDeps {
err_sig := @MOD + '.' + @FN
imported_modules := v_meta_info.imports
// The following detects `#flag /path/to/file.o` entries in V source code that matches a module.
//
// Find all "*.o" entries in the C flags dump (obtained via `-dump-c-flags`).
// Match the (file)name of these .o files with what modules are actually imported
// (imports are obtained via `-dump-modules`)
// If they are module .o files - look for the corresponding `.o.description.txt` that V produces
// as `~/.vmodules/cache/<hex>/<hash>.o.description.txt`.
// If the file exists read in it's contents to obtain the exact flags passed to the C compiler.
mut v_module_o_files := map[string][][]string{}
for line in v_meta_info.c_flags {
line_trimmed := line.trim('\'"')
if line_trimmed.contains('.module.') && line_trimmed.ends_with('.o') {
module_name := line_trimmed.all_after('.module.').all_before_last('.o')
if module_name in imported_modules {
description_file := line_trimmed.all_before_last('.o') + '.description.txt'
if os.is_file(description_file) {
if description_contents := os.read_file(description_file) {
desc := description_contents.split(' ').map(it.trim_space()).filter(it != '')
index_of_at := desc.index('@')
index_of_o := desc.index('-o')
index_of_c := desc.index('-c')
if desc.len <= 3 || index_of_at <= 0 || index_of_o <= 0 || index_of_c <= 0 {
if opt.verbosity > 2 {
println('Description file "${description_file}" does not seem to have valid contents for object file generation')
println('Description file contents:\n---\n"${description_contents}"\n---')
}
continue
}
v_module_o_files[module_name] << (desc[index_of_at + 2..])
}
}
}
}
}
mut o_files := map[string][]string{}
mut a_files := map[string][]string{}
uses_gc := opt.uses_gc()
build_dir := opt.build_directory()!
is_debug_build := opt.is_debug_build()
// For all compilers
mut cflags_common := opt.c_flags.clone()
if opt.is_prod {
cflags_common << ['-Os']
} else {
cflags_common << ['-O0']
}
cflags_common << ['-fPIC']
cflags_common << ['-Wall', '-Wextra']
mut android_includes := []string{}
// Include NDK headers
ndk_sysroot := ndk.sysroot_path(opt.ndk_version) or {
return error('${err_sig}: getting NDK sysroot path.\n${err}')
}
android_includes << '-I"' + os.join_path(ndk_sysroot, 'usr', 'include') + '"'
android_includes << '-I"' + os.join_path(ndk_sysroot, 'usr', 'include', 'android') + '"'
v_thirdparty_dir := os.join_path(vxt.home(), 'thirdparty')
archs := opt.archs()!
mut jobs := []job_util.ShellJob{}
for arch in archs {
mut cflags := cflags_common.clone()
arch_o_dir := os.join_path(build_dir, 'o', arch)
if !os.is_dir(arch_o_dir) {
os.mkdir_all(arch_o_dir) or {
return error('${err_sig}: failed making directory "${arch_o_dir}".\n${err}')
}
}
compiler := ndk.compiler(.c, opt.ndk_version, arch, opt.api_level) or {
return error('${err_sig}: failed getting NDK compiler.\n${err}')
}
// Support builtin libgc which is enabled by default in V or via explicit passed `-gc` flag.
if uses_gc {
if opt.verbosity > 1 {
println('Compiling libgc (${arch}) via -gc flag')
}
mut defines := []string{}
if is_debug_build {
defines << '-DGC_ASSERTIONS'
defines << '-DGC_ANDROID_LOG'
}
defines << '-DGC_THREADS=1'
defines << '-DGC_BUILTIN_ATOMIC=1'
defines << '-D_REENTRANT'
// NOTE it's currently a little unclear why this is needed.
// V UI can crash and with when the gc is built into the exe and started *without* GC_INIT() the error would occur:
defines << '-DUSE_MMAP' // Will otherwise crash with a message with a path to the lib in GC_unix_mmap_get_mem+528
o_file := os.join_path(arch_o_dir, 'gc.o')
build_cmd := [
compiler,
cflags.join(' '),
'-I"' + os.join_path(v_thirdparty_dir, 'libgc', 'include') + '"',
defines.join(' '),
'-c "' + os.join_path(v_thirdparty_dir, 'libgc', 'gc.c') + '"',
'-o "${o_file}"',
]
util.verbosity_print_cmd(build_cmd, opt.verbosity)
o_res := util.run_or_error(build_cmd)!
if opt.verbosity > 2 {
eprintln(o_res)
}
o_files[arch] << o_file
jobs << job_util.ShellJob{
cmd: build_cmd
}
}
// Compile all detected `#flag /path/to/xxx.o` V source code entires that matches an imported module.
// NOTE: currently there's no way in V source to pass flags for specific architectures so these flags need
// to be added specially here. It should probably be supported as compile options from commandline...
for module_name, mod_compile_lines in v_module_o_files {
if opt.verbosity > 1 {
println('Compiling .o files from module ${module_name} for arch ${arch}...')
}
if module_name == 'stbi' && arch == 'armeabi-v7a' {
if opt.verbosity > 1 {
println('Applying fix flag to stb_image_resize2.h (for ${arch}, via stbi module)')
}
cflags << '-mfpu=neon-vfpv4'
$if gcc {
cflags << '-mfp16-format=ieee'
}
}
for compile_line in mod_compile_lines {
index_o_arg := compile_line.index('-o') + 1
mut o_file := ''
if path := compile_line[index_o_arg] {
file_name := os.file_name(path).trim_space().trim('\'"')
o_file = os.join_path(arch_o_dir, '${file_name}')
}
mut build_cmd := [
compiler,
cflags.join(' '),
]
for i, entry in compile_line {
if i == index_o_arg {
build_cmd << '"${o_file}"'
continue
}
build_cmd << entry
}
if opt.verbosity > 1 {
println('Compiling "${o_file}" from module ${module_name} for arch ${arch}...')
}
util.verbosity_print_cmd(build_cmd, opt.verbosity)
o_res := util.run_or_error(build_cmd)!
if opt.verbosity > 2 {
eprintln(o_res)
}
o_files[arch] << o_file
jobs << job_util.ShellJob{
cmd: build_cmd
}
}
}
}
job_util.run_jobs(jobs, opt.parallel, opt.verbosity)!
return VImportCDeps{
o_files: o_files
a_files: a_files
}
}
// compile_v_imports_c_dependencies compiles the C dependencies of V's module imports.
// It is replaced by compile_v_c_dependencies that has better support for `#flag /path/to/xxx.o` V source entries.
@[deprecated: 'use compile_v_c_dependencies() instead']
@[deprecated_after: '2025-01-01']
pub fn compile_v_imports_c_dependencies(opt CompileOptions, imported_modules []string) !VImportCDeps {
err_sig := @MOD + '.' + @FN
mut o_files := map[string][]string{}
mut a_files := map[string][]string{}
uses_gc := opt.uses_gc()
build_dir := opt.build_directory()!
is_debug_build := opt.is_debug_build()
// For all compilers
mut cflags_common := opt.c_flags.clone()
if opt.is_prod {
cflags_common << ['-Os']
} else {
cflags_common << ['-O0']
}
cflags_common << ['-fPIC']
cflags_common << ['-Wall', '-Wextra']
mut android_includes := []string{}
// Include NDK headers
ndk_sysroot := ndk.sysroot_path(opt.ndk_version) or {
return error('${err_sig}: getting NDK sysroot path.\n${err}')
}
android_includes << '-I"' + os.join_path(ndk_sysroot, 'usr', 'include') + '"'
android_includes << '-I"' + os.join_path(ndk_sysroot, 'usr', 'include', 'android') + '"'
v_thirdparty_dir := os.join_path(vxt.home(), 'thirdparty')
archs := opt.archs()!
mut jobs := []job_util.ShellJob{}
for arch in archs {
mut cflags := cflags_common.clone()
arch_o_dir := os.join_path(build_dir, 'o', arch)
if !os.is_dir(arch_o_dir) {
os.mkdir_all(arch_o_dir) or {
return error('${err_sig}: failed making directory "${arch_o_dir}".\n${err}')
}
}
compiler := ndk.compiler(.c, opt.ndk_version, arch, opt.api_level) or {
return error('${err_sig}: failed getting NDK compiler.\n${err}')
}
if uses_gc {
if opt.verbosity > 1 {
println('Compiling libgc (${arch}) via -gc flag')
}
mut defines := []string{}
if is_debug_build {
defines << '-DGC_ASSERTIONS'
defines << '-DGC_ANDROID_LOG'
}
defines << '-DGC_THREADS=1'
defines << '-DGC_BUILTIN_ATOMIC=1'
defines << '-D_REENTRANT'
// NOTE it's currently a little unclear why this is needed.
// V UI can crash and with when the gc is built into the exe and started *without* GC_INIT() the error would occur:
defines << '-DUSE_MMAP' // Will otherwise crash with a message with a path to the lib in GC_unix_mmap_get_mem+528
o_file := os.join_path(arch_o_dir, 'gc.o')
build_cmd := [
compiler,
cflags.join(' '),
'-I"' + os.join_path(v_thirdparty_dir, 'libgc', 'include') + '"',
defines.join(' '),
'-c "' + os.join_path(v_thirdparty_dir, 'libgc', 'gc.c') + '"',
'-o "${o_file}"',
]
util.verbosity_print_cmd(build_cmd, opt.verbosity)
o_res := util.run_or_error(build_cmd)!
if opt.verbosity > 2 {
eprintln(o_res)
}
o_files[arch] << o_file
jobs << job_util.ShellJob{
cmd: build_cmd
}
}
// stb_image via `stbi` module
if 'stbi' in imported_modules {
if opt.verbosity > 1 {
println('Compiling stb_image (${arch}) via stbi module')
}
if arch == 'armeabi-v7a' {
cflags << '-mfpu=neon-vfpv4'
$if gcc {
cflags << '-mfp16-format=ieee'
}
}
o_file := os.join_path(arch_o_dir, 'stbi.o')
build_cmd := [
compiler,
cflags.join(' '),
'-Wno-sign-compare',
'-I"' + os.join_path(v_thirdparty_dir, 'stb_image') + '"',
'-c "' + os.join_path(v_thirdparty_dir, 'stb_image', 'stbi.c') + '"',
'-o "${o_file}"',
]
o_files[arch] << o_file
jobs << job_util.ShellJob{
cmd: build_cmd
}
}
// cJson via `json` module
if 'json' in imported_modules {
if opt.verbosity > 1 {
println('Compiling cJSON (${arch}) via json module')
}
o_file := os.join_path(arch_o_dir, 'cJSON.o')
build_cmd := [
compiler,
cflags.join(' '),
'-I"' + os.join_path(v_thirdparty_dir, 'cJSON') + '"',
'-c "' + os.join_path(v_thirdparty_dir, 'cJSON', 'cJSON.c') + '"',
'-o "${o_file}"',
]
o_files[arch] << o_file
jobs << job_util.ShellJob{
cmd: build_cmd
}
}
}
job_util.run_jobs(jobs, opt.parallel, opt.verbosity)!
return VImportCDeps{
o_files: o_files
a_files: a_files
}
}