add PR_*_FP_MODE prctl options

new in linux v4.0, commit 9791554b45a2acc28247f66a5fd5bbc212a6b8c8
used to work around a floating-point abi issue on mips

diff --git a/include/sys/prctl.h b/include/sys/prctl.h
index 4129a70ce614b715a3d3ca7cf620bd1aaec0a102..ec92053d2cd4ac971cf6ce42710f9e688437ebb7 100644 (file)
--- a/include/sys/prctl.h
+++ b/include/sys/prctl.h
@@ -119,6 +119,11 @@ struct prctl_mm_map {
 #define PR_MPX_ENABLE_MANAGEMENT  43
 #define PR_MPX_DISABLE_MANAGEMENT 44
 
+#define PR_SET_FP_MODE          45
+#define PR_GET_FP_MODE          46
+#define PR_FP_MODE_FR (1 << 0)
+#define PR_FP_MODE_FRE (1 << 1)
+
 int prctl (int, ...);
 
 #ifdef __cplusplus