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cross compilation

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This commit is contained in:
Li Jie
2025-04-08 09:26:27 +08:00
parent a85d937482
commit e6c7627ee8
12 changed files with 496 additions and 102 deletions
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67
ssa/target.go
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@@ -17,6 +17,8 @@
package ssa
import (
"runtime"
"github.com/goplus/llvm"
)
@@ -29,15 +31,15 @@ type Target struct {
}
func (p *Target) targetData() llvm.TargetData {
spec := p.toSpec()
if spec.triple == "" {
spec.triple = llvm.DefaultTargetTriple()
spec := p.Spec()
if spec.Triple == "" {
spec.Triple = llvm.DefaultTargetTriple()
}
t, err := llvm.GetTargetFromTriple(spec.triple)
t, err := llvm.GetTargetFromTriple(spec.Triple)
if err != nil {
panic(err)
}
machine := t.CreateTargetMachine(spec.triple, spec.cpu, spec.features, llvm.CodeGenLevelDefault, llvm.RelocDefault, llvm.CodeModelDefault)
machine := t.CreateTargetMachine(spec.Triple, spec.CPU, spec.Features, llvm.CodeGenLevelDefault, llvm.RelocDefault, llvm.CodeModelDefault)
return machine.CreateTargetData()
}
@@ -62,19 +64,13 @@ func (p *Program) targetMachine() llvm.TargetMachine {
}
*/
type targetSpec struct {
triple string
cpu string
features string
type TargetSpec struct {
Triple string
CPU string
Features string
}
// TODO config
func (p *Target) toSpec() (spec targetSpec) {
return
}
/*
func (p *Target) toSpec() (spec targetSpec) {
func (p *Target) Spec() (spec TargetSpec) {
// Configure based on GOOS/GOARCH environment variables (falling back to
// runtime.GOOS/runtime.GOARCH), and generate a LLVM target based on it.
var llvmarch string
@@ -113,56 +109,55 @@ func (p *Target) toSpec() (spec targetSpec) {
case "darwin":
// Use macosx* instead of darwin, otherwise darwin/arm64 will refer
// to iOS!
llvmos = "macosx10.12.0"
llvmos = "macosx"
if llvmarch == "aarch64" {
// Looks like Apple prefers to call this architecture ARM64
// instead of AArch64.
llvmarch = "arm64"
llvmos = "macosx11.0.0"
llvmos = "macosx"
}
llvmvendor = "apple"
case "wasip1":
llvmos = "wasi"
llvmos = "wasip1"
}
// Target triples (which actually have four components, but are called
// triples for historical reasons) have the form:
// arch-vendor-os-environment
spec.triple = llvmarch + "-" + llvmvendor + "-" + llvmos
spec.Triple = llvmarch + "-" + llvmvendor + "-" + llvmos
if llvmos == "windows" {
spec.triple += "-gnu"
spec.Triple += "-gnu"
} else if goarch == "arm" {
spec.triple += "-gnueabihf"
spec.Triple += "-gnueabihf"
}
switch goarch {
case "386":
spec.cpu = "pentium4"
spec.features = "+cx8,+fxsr,+mmx,+sse,+sse2,+x87"
spec.CPU = "pentium4"
spec.Features = "+cx8,+fxsr,+mmx,+sse,+sse2,+x87"
case "amd64":
spec.cpu = "x86-64"
spec.features = "+cx8,+fxsr,+mmx,+sse,+sse2,+x87"
spec.CPU = "x86-64"
spec.Features = "+cx8,+fxsr,+mmx,+sse,+sse2,+x87"
case "arm":
spec.cpu = "generic"
spec.CPU = "generic"
switch llvmarch {
case "armv5":
spec.features = "+armv5t,+strict-align,-aes,-bf16,-d32,-dotprod,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-mve.fp,-neon,-sha2,-thumb-mode,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp"
spec.Features = "+armv5t,+strict-align,-aes,-bf16,-d32,-dotprod,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-mve.fp,-neon,-sha2,-thumb-mode,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp"
case "armv6":
spec.features = "+armv6,+dsp,+fp64,+strict-align,+vfp2,+vfp2sp,-aes,-d32,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fullfp16,-neon,-sha2,-thumb-mode,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp"
spec.Features = "+armv6,+dsp,+fp64,+strict-align,+vfp2,+vfp2sp,-aes,-d32,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fullfp16,-neon,-sha2,-thumb-mode,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp"
case "armv7":
spec.features = "+armv7-a,+d32,+dsp,+fp64,+neon,+vfp2,+vfp2sp,+vfp3,+vfp3d16,+vfp3d16sp,+vfp3sp,-aes,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fullfp16,-sha2,-thumb-mode,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp"
spec.Features = "+armv7-a,+d32,+dsp,+fp64,+neon,+vfp2,+vfp2sp,+vfp3,+vfp3d16,+vfp3d16sp,+vfp3sp,-aes,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fullfp16,-sha2,-thumb-mode,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp"
}
case "arm64":
spec.cpu = "generic"
spec.CPU = "generic"
if goos == "darwin" {
spec.features = "+neon"
spec.Features = "+neon"
} else { // windows, linux
spec.features = "+neon,-fmv"
spec.Features = "+neon,-fmv"
}
case "wasm":
spec.cpu = "generic"
spec.features = "+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext"
spec.CPU = "generic"
spec.Features = "+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext"
}
return
}
*/
// -----------------------------------------------------------------------------