From: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Date: Fri, 12 Jul 2024 05:16:04 +0000 (-0400)
Subject: sh4 support
X-Git-Tag: archive/raspbian/2021.12.0-1+rpi1^2~1
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=40fa546c534f2ccbbdb798a152014950d2e8079d;p=onetbb.git

sh4 support

Forwarded: not yet.
BTS: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1027168

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.

Gbp-Pq: Name sh4-support.patch
---

diff --git a/test/common/fp_control.h b/test/common/fp_control.h
index 9e18f8b..6737efe 100644
--- a/test/common/fp_control.h
+++ b/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 ) {