186 строки
3,2 КиБ
Go
186 строки
3,2 КиБ
Go
package main
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import (
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"io/ioutil"
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"os"
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"os/exec"
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"path/filepath"
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)
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// These are the GENERIC_SOURCES according to CMakeList.txt.
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var genericBuiltins = []string{
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"absvdi2",
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"absvsi2",
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"absvti2",
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"adddf3",
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"addsf3",
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"addtf3",
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"addvdi3",
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"addvsi3",
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"addvti3",
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"apple_versioning",
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"ashldi3",
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"ashlti3",
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"ashrdi3",
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"ashrti3",
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"bswapdi2",
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"bswapsi2",
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"clzdi2",
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"clzsi2",
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"clzti2",
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"cmpdi2",
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"cmpti2",
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"comparedf2",
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"comparesf2",
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"ctzdi2",
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"ctzsi2",
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"ctzti2",
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"divdc3",
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"divdf3",
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"divdi3",
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"divmoddi4",
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"divmodsi4",
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"divsc3",
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"divsf3",
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"divsi3",
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"divtc3",
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"divti3",
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"divtf3",
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"extendsfdf2",
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"extendhfsf2",
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"ffsdi2",
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"ffssi2",
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"ffsti2",
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"fixdfdi",
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"fixdfsi",
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"fixdfti",
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"fixsfdi",
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"fixsfsi",
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"fixsfti",
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"fixunsdfdi",
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"fixunsdfsi",
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"fixunsdfti",
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"fixunssfdi",
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"fixunssfsi",
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"fixunssfti",
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"floatdidf",
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"floatdisf",
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"floatsidf",
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"floatsisf",
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"floattidf",
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"floattisf",
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"floatundidf",
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"floatundisf",
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"floatunsidf",
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"floatunsisf",
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"floatuntidf",
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"floatuntisf",
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//"int_util",
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"lshrdi3",
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"lshrti3",
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"moddi3",
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"modsi3",
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"modti3",
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"muldc3",
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"muldf3",
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"muldi3",
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"mulodi4",
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"mulosi4",
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"muloti4",
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"mulsc3",
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"mulsf3",
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"multi3",
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"multf3",
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"mulvdi3",
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"mulvsi3",
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"mulvti3",
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"negdf2",
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"negdi2",
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"negsf2",
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"negti2",
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"negvdi2",
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"negvsi2",
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"negvti2",
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"os_version_check",
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"paritydi2",
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"paritysi2",
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"parityti2",
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"popcountdi2",
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"popcountsi2",
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"popcountti2",
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"powidf2",
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"powisf2",
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"powitf2",
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"subdf3",
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"subsf3",
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"subvdi3",
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"subvsi3",
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"subvti3",
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"subtf3",
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"trampoline_setup",
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"truncdfhf2",
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"truncdfsf2",
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"truncsfhf2",
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"ucmpdi2",
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"ucmpti2",
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"udivdi3",
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"udivmoddi4",
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"udivmodsi4",
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"udivmodti4",
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"udivsi3",
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"udivti3",
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"umoddi3",
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"umodsi3",
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"umodti3",
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}
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// Get the builtins archive, possibly generating it as needed.
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func loadBuiltins(target string) (path string, err error) {
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outfile := "librt-" + target + ".a"
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builtinsDir := filepath.Join(sourceDir(), "lib", "compiler-rt", "lib", "builtins")
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srcs := make([]string, len(genericBuiltins))
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for i, name := range genericBuiltins {
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srcs[i] = filepath.Join(builtinsDir, name+".c")
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}
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if path, err := cacheLoad(outfile, commands["clang"], srcs); path != "" || err != nil {
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return path, err
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}
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dir, err := ioutil.TempDir("", "tinygo-builtins")
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if err != nil {
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return "", err
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}
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defer os.RemoveAll(dir)
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// Compile all builtins.
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// TODO: use builtins optimized for a given target if available.
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objs := make([]string, 0, len(genericBuiltins))
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for _, name := range genericBuiltins {
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objpath := filepath.Join(dir, name+".o")
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objs = append(objs, objpath)
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srcpath := filepath.Join(builtinsDir, name+".c")
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cmd := exec.Command(commands["clang"], "-c", "-Oz", "-g", "-Werror", "-Wall", "-std=c11", "--target="+target, "-o", objpath, srcpath)
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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cmd.Dir = dir
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err = cmd.Run()
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if err != nil {
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return "", err
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}
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}
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// Put all builtins in an archive to link as a static library.
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arpath := filepath.Join(dir, "librt.a")
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cmd := exec.Command(commands["ar"], append([]string{"cr", arpath}, objs...)...)
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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cmd.Dir = dir
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err = cmd.Run()
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if err != nil {
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return "", err
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}
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return cacheStore(arpath, outfile, commands["clang"], srcs)
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}
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