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native: support -no-builtin (generate executables < 1KB Linux with v -no-builtin -b native examples/hello_world.v)

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This commit is contained in:
Delyan Angelov 2023-10-02 19:04:25 +03:00
parent f43be7a171
commit c0a7397637
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GPG Key ID: 66886C0F12D595ED
2 changed files with 40 additions and 1 deletions
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36
cmd/tools/vtest-all.v
View File

@ -16,6 +16,8 @@ const vargs = args_string.all_before('test-all')
const vtest_nocleanup = os.getenv('VTEST_NOCLEANUP').bool()
const hw_native_no_builtin_size_limit = 300
fn main() {
mut commands := get_all_commands()
// summary
@ -57,6 +59,8 @@ const ends_with_nothing = '<nothing>'
const contains_nothing = '<nothing>'
type FnCheck = fn () !
struct Command {
mut:
line string
@ -71,6 +75,8 @@ mut:
ends_with string = ends_with_nothing
contains string = contains_nothing
output string
before_cb FnCheck = unsafe { nil }
after_cb FnCheck = unsafe { nil }
}
fn get_all_commands() []Command {
@ -156,6 +162,20 @@ fn get_all_commands() []Command {
line: '${vexe} -experimental -b native run examples/native/hello_world.v > /dev/null'
okmsg: 'V compiles and runs examples/native/hello_world.v on the native backend for linux'
}
res << Command{
line: '${vexe} -no-builtin -experimental -b native examples/hello_world.v > /dev/null'
okmsg: 'V compiles examples/hello_world.v on the native backend for linux with `-no-builtin` & the executable is <= ${hw_native_no_builtin_size_limit} bytes'
rmfile: 'examples/hello_world'
after_cb: fn () ! {
file := 'examples/hello_world'
if !os.exists(file) {
return error('>> file ${file} does not exist')
}
if os.file_size(file) > hw_native_no_builtin_size_limit {
return error('>> file ${file} bigger than ${hw_native_no_builtin_size_limit} bytes')
}
}
}
}
// only compilation:
res << Command{
@ -329,6 +349,14 @@ fn (mut cmd Command) run() {
if cmd.label != '' {
println(term.header_left(cmd.label, '*'))
}
if cmd.before_cb != unsafe { nil } {
cmd.before_cb() or {
cmd.ecode = -1
cmd.errmsg = '> before_cb callback for "${cmd.line}" ${term.failed('FAILED')}\n${err}'
println(cmd.errmsg)
return
}
}
sw := time.new_stopwatch()
if cmd.runcmd == .system {
cmd.ecode = os.system(cmd.line)
@ -340,6 +368,14 @@ fn (mut cmd Command) run() {
cmd.output = res.output
}
spent := sw.elapsed().milliseconds()
if cmd.after_cb != unsafe { nil } {
cmd.after_cb() or {
cmd.ecode = -1
cmd.errmsg = '> after_cb callback for "${cmd.line}" ${term.failed('FAILED')}\n${err}'
println(cmd.errmsg)
return
}
}
//
mut is_failed := false
mut is_failed_expected := false

5
vlib/v/builder/nativebuilder/nativebuilder.v
View File

@ -16,7 +16,10 @@ pub fn compile_native(mut b builder.Builder) {
if b.pref.is_verbose {
println('all .v files before:')
}
mut files := b.get_builtin_files()
mut files := []string{}
if !b.pref.no_builtin {
files << b.get_builtin_files()
}
files << b.get_user_files()
b.set_module_lookup_paths()
if b.pref.is_verbose {