From e5bb165bed7be4176914672d25ff8e286b6fba49 Mon Sep 17 00:00:00 2001 From: Szabolcs Nagy Date: Mon, 24 Feb 2014 23:16:29 +0100 Subject: 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. --- arch/mips/bits/fenv.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch/mips/bits/fenv.h') diff --git a/arch/mips/bits/fenv.h b/arch/mips/bits/fenv.h index b2a6db9a..589e71c1 100644 --- a/arch/mips/bits/fenv.h +++ b/arch/mips/bits/fenv.h @@ -1,3 +1,7 @@ +#ifdef __mips_soft_float +#define FE_ALL_EXCEPT 0 +#define FE_TONEAREST 0 +#else #define FE_INEXACT 4 #define FE_UNDERFLOW 8 #define FE_OVERFLOW 16 @@ -10,6 +14,7 @@ #define FE_TOWARDZERO 1 #define FE_UPWARD 2 #define FE_DOWNWARD 3 +#endif typedef unsigned short fexcept_t; -- cgit v1.2.1