goarch.bbclass: fixups for Go mips32 support

* Fix the regular expression in the mips test

* Flag as incompatible any mips32 tunes for n32 ABI
  or soft-float, as go does not support them.

* Replace mips32r2 tune with mips32r1. Go only supports
  mips32r1, which is a strict subset of r2.  Adjusting
  this tune is not ideal, but is hopefully a temporary
  measure until more complete mips32 ISA coverage
  arrives upstream.

[YOCTO #12108]

Signed-off-by: Matt Madison <matt@madison.systems>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 8 insertions, 4 deletions

diff --git a/meta/classes/goarch.bbclass b/meta/classes/goarch.bbclass
index 8b95c5fe94..9ed562d5ab 100644
--- a/meta/classes/goarch.bbclass
+++ b/meta/classes/goarch.bbclass
@@ -43,10 +43,14 @@ def go_map_arch(a, d):
         return 'mips64le'
     elif re.match('mips64*', a):
         return 'mips64'
-    elif re.match('mipsel*', a):
-        return 'mipsle'
-    elif re.match('mips*', a):
-        return 'mips'
+    elif re.match('mips.*', a):
+        tf = d.getVar('TUNE_FEATURES').split()
+        if 'fpu-hard' in tf and 'n32' not in tf:
+            if 'mips32r2' in tf:
+                newtf = [t for t in tf if t != 'mips32r2']
+                newtf.append('mips32')
+                d.setVar('TUNE_FEATURES', ' '.join(newtf))
+            return 'mips' if 'bigendian' in tf else 'mipsle'
     elif re.match('p(pc|owerpc)(64)', a):
         return 'ppc64'
     elif re.match('p(pc|owerpc)(64el)', a):