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arm: Explicitly disable unwind tables

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Some clang builds (e.g., Fedora's) enable unwind tables by default. As
tinygo does not need nor support them, that leads to undefined symbols
when linking.
This commit is contained in:
Elliott Sales de Andrade
2022-01-03 18:40:21 -05:00
committed by Ron Evans
parent 14ce531498
commit b2ef7299b7
2 changed files with 2 additions and 1 deletions
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builder/library.go
+1 -1
View File
@@ -149,7 +149,7 @@ func (l *Library) load(config *compileopts.Config, tmpdir string) (job *compileJ
}
}
if strings.HasPrefix(target, "arm") || strings.HasPrefix(target, "thumb") {
args = append(args, "-fshort-enums", "-fomit-frame-pointer", "-mfloat-abi=soft")
args = append(args, "-fshort-enums", "-fomit-frame-pointer", "-mfloat-abi=soft", "-fno-unwind-tables")
}
if strings.HasPrefix(target, "riscv32-") {
args = append(args, "-march=rv32imac", "-mabi=ilp32", "-fforce-enable-int128")
compileopts/target.go
+1
View File
@@ -265,6 +265,7 @@ func defaultTarget(goos, goarch, triple string) (*TargetSpec, error) {
spec.Features = "+cx8,+fxsr,+mmx,+sse,+sse2,+x87"
case "arm":
spec.CPU = "generic"
spec.CFlags = append(spec.CFlags, "-fno-unwind-tables")
switch strings.Split(triple, "-")[0] {
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"