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| author | Ayke van Laethem <[email protected]> | 2024-07-30 19:08:55 +0200 |
|---|---|---|
| committer | Ron Evans <[email protected]> | 2024-08-12 13:23:32 +0200 |
| commit | f188eaf5f92618adc6422c2b55db8f822c6cc458 (patch) | |
| tree | 835fb9b43034c92ff679d386500c7c9f66a98290 /builder/library.go | |
| parent | 6efc6d2bb6489a9157c5bd964bdc072ed23f29d1 (diff) | |
| download | tinygo-f188eaf5f92618adc6422c2b55db8f822c6cc458.tar.gz tinygo-f188eaf5f92618adc6422c2b55db8f822c6cc458.zip | |
mips: add GOMIPS=softfloat support
Previously, the compiler would default to hardfloat. This is not
supported by some MIPS CPUs.
This took me much longer than it should have because of a quirk in the
LLVM Mips backend: if the target-features string is not set (like during
LTO), the Mips backend picks the first function in the module and uses
that. Unfortunately, in the case of TinyGo this first function is
`llvm.dbg.value`, which is an LLVM intrinsic and doesn't have the
target-features string. I fixed it by adding a `-mllvm -mattr=` flag to
the linker.
Diffstat (limited to 'builder/library.go')
| -rw-r--r-- | builder/library.go | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/builder/library.go b/builder/library.go index 0ab7fa0e4..b8d183414 100644 --- a/builder/library.go +++ b/builder/library.go @@ -169,6 +169,11 @@ func (l *Library) load(config *compileopts.Config, tmpdir string) (job *compileJ case "mips": args = append(args, "-fno-pic") } + if config.Target.SoftFloat { + // Use softfloat instead of floating point instructions. This is + // supported on many architectures. + args = append(args, "-msoft-float") + } var once sync.Once |