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Description: sh4 support
onetbb currently FTBFS on sh4 because the source code assumes that the target
FPU supports all four rounding modes (FE_TONEAREST, FE_DOWNWARD, FE_UPWARD and
FE_TOWARDZERO) which is not the case on sh4 which supports FE_TONEAREST and
FE_TOWARDZERO only [1].
.
The attached patch fixes these assumptions for sh4 and makes the code build. I
have already patched and uploaded the package to the unreleased distribution
so that the mold linker can build on sh4 as well.
.
I will forward the patch later after reformating it.
Author: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Forwarded: not yet.
BTS: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1027168
Index: onetbb/test/common/fp_control.h
===================================================================
--- onetbb.orig/test/common/fp_control.h
+++ onetbb/test/common/fp_control.h
@@ -112,7 +112,11 @@ inline void SetRoundingMode ( int mode )
#include <fenv.h>
+#if defined(__sh__)
+const int RND_MODE_MASK = FE_TONEAREST | FE_TOWARDZERO;
+#else
const int RND_MODE_MASK = FE_TONEAREST | FE_DOWNWARD | FE_UPWARD | FE_TOWARDZERO;
+#endif
const int NumSseModes = 1;
const int SseModes[NumSseModes] = { 0 };
@@ -125,8 +129,13 @@ inline void SetSseMode ( int ) {}
#endif /* Other archs */
+#if defined(__sh__)
+const int NumRoundingModes = 2;
+const int RoundingModes[NumRoundingModes] = { FE_TONEAREST, FE_TOWARDZERO };
+#else
const int NumRoundingModes = 4;
const int RoundingModes[NumRoundingModes] = { FE_TONEAREST, FE_DOWNWARD, FE_UPWARD, FE_TOWARDZERO };
+#endif
const int numFPModes = NumRoundingModes*NumSseModes;
inline void SetFPMode( int mode ) {
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