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package builder
import (
"path/filepath"
"strings"
"github.com/tinygo-org/tinygo/compileopts"
"github.com/tinygo-org/tinygo/goenv"
)
// Create a job that builds a Darwin libSystem.dylib stub library. This library
// contains all the symbols needed so that we can link against it, but it
// doesn't contain any real symbol implementations.
func makeDarwinLibSystemJob(config *compileopts.Config, tmpdir string) *compileJob {
return &compileJob{
description: "compile Darwin libSystem.dylib",
run: func(job *compileJob) (err error) {
arch := strings.Split(config.Triple(), "-")[0]
job.result = filepath.Join(tmpdir, "libSystem.dylib")
objpath := filepath.Join(tmpdir, "libSystem.o")
inpath := filepath.Join(goenv.Get("TINYGOROOT"), "lib/macos-minimal-sdk/src", arch, "libSystem.s")
// Compile assembly file to object file.
flags := []string{
"-nostdlib",
"--target=" + config.Triple(),
"-c",
"-o", objpath,
inpath,
}
if config.Options.PrintCommands != nil {
config.Options.PrintCommands("clang", flags...)
}
err = runCCompiler(flags...)
if err != nil {
return err
}
// Link object file to dynamic library.
platformVersion := strings.TrimPrefix(strings.Split(config.Triple(), "-")[2], "macosx")
flags = []string{
"-flavor", "darwin",
"-demangle",
"-dynamic",
"-dylib",
"-arch", arch,
"-platform_version", "macos", platformVersion, platformVersion,
"-install_name", "/usr/lib/libSystem.B.dylib",
"-o", job.result,
objpath,
}
if config.Options.PrintCommands != nil {
config.Options.PrintCommands("ld.lld", flags...)
}
return link("ld.lld", flags...)
},
}
}
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