mips: add mips-sf subarch support (soft-float)

Userspace emulated floating-point (gcc -msoft-float) is not compatible
with the default mips abi (assumes an FPU or in kernel emulation of it).
Soft vs hard float abi should not be mixed, __mips_soft_float is checked
in musl's configure script and there is no runtime check. The -sf subarch
does not save/restore floating-point registers in setjmp/longjmp and only
provides dummy fenv implementation.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/fenv/mips-sf/fenv.sub b/src/fenv/mips-sf/fenv.sub
new file mode 100644
index 00000000..9cafca5e
--- /dev/null
+++ b/src/fenv/mips-sf/fenv.sub
@@ -0,0 +1 @@
+../fenv.c