c932fe3045
Disable sincos optimization for all functions in this file, otherwise gcc would generate infinite calls. Refer to gcc bug 46926. -fno-builtin-sin or -fno-builtin-cos can disable sincos optimization, but these two options do not work inside optimize pragma in-file. Thus we just enforce -O0 when compiling this file. Signed-off-by: p-szafonimateusz <p-szafonimateusz@xiaomi.com>
74 lines
2.2 KiB
Diff
74 lines
2.2 KiB
Diff
From b88abc9c31c450c44c384feaf2e2653c8c4c69e4 Mon Sep 17 00:00:00 2001
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From: p-szafonimateusz <p-szafonimateusz@xiaomi.com>
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Date: Fri, 24 May 2024 09:19:03 +0200
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Subject: [PATCH] newlib: disable optmisation for sincos
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Change-Id: Ie571e357485384655f67cdc9af2be1c60cacfeee
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Signed-off-by: p-szafonimateusz <p-szafonimateusz@xiaomi.com>
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---
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newlib/libm/math/w_sincos.c | 9 +++++++++
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newlib/libm/math/wf_sincos.c | 10 ++++++++++
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2 files changed, 19 insertions(+)
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diff --git a/newlib/newlib/newlib/libm/math/w_sincos.c newlib/newlib/newlib/libm/math/w_sincos.c
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index 491efa418..6f85c27ab 100644
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--- a/newlib/newlib/newlib/libm/math/w_sincos.c
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+++ newlib/newlib/newlib/libm/math/w_sincos.c
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@@ -4,8 +4,19 @@
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#include "fdlibm.h"
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#include <errno.h>
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+/* Disable sincos optimization for all functions in this file,
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+ * otherwise gcc would generate infinite calls.
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+ * Refer to gcc PR46926.
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+ * -fno-builtin-sin or -fno-builtin-cos can disable sincos optimization,
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+ * but these two options do not work inside optimize pragma in-file.
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+ * Thus we just enforce -O0 when compiling this file.
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+ */
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+
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#ifndef _DOUBLE_IS_32BITS
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+#ifdef __GNUC__
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+__attribute__((optimize("O0")))
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+#endif
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#ifdef __STDC__
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void sincos(double x, double *sinx, double *cosx)
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#else
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diff --git a/newlib/newlib/newlib/libm/math/wf_sincos.c newlib/newlib/newlib/libm/math/wf_sincos.c
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index 69eb922c9..2e9b5ca62 100644
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--- a/newlib/newlib/newlib/libm/math/wf_sincos.c
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+++ newlib/newlib/newlib/libm/math/wf_sincos.c
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@@ -3,8 +3,19 @@
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#include "fdlibm.h"
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#if __OBSOLETE_MATH
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+/* Disable sincos optimization for all functions in this file,
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+ * otherwise gcc would generate infinite calls.
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+ * Refer to gcc PR46926.
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+ * -fno-builtin-sin or -fno-builtin-cos can disable sincos optimization,
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+ * but these two options do not work inside optimize pragma in-file.
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+ * Thus we just enforce -O0 when compiling this file.
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+ */
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+
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#include <errno.h>
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+#ifdef __GNUC__
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+__attribute__((optimize("O0")))
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+#endif
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#ifdef __STDC__
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void sincosf(float x, float *sinx, float *cosx)
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#else
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@@ -20,6 +29,9 @@
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#ifdef _DOUBLE_IS_32BITS
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+#ifdef __GNUC__
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+__attribute__((optimize("O0")))
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+#endif
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#ifdef __STDC__
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void sincos(double x, double *sinx, double *cosx)
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#else
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--
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2.44.0
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