42 lines
1.7 KiB
Diff
42 lines
1.7 KiB
Diff
From 27a633f79c9a0248ce673ff2d9c397e136427b01 Mon Sep 17 00:00:00 2001
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From: None <@>
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Date: Wed, 21 Oct 2020 17:35:50 +0000
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Subject: Backport of patch of the GCC 11 to avoid the GNU Attributes into
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libgcc
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source: https://gcc.gnu.org/pipermail/gcc-patches/2020-September/554770.html
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The -mno-gnu-attribute avoids the linker emit an error when check
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the type of long double 128bit.
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Signed-off-by: Gustavo L F Walbon <gwalbon@linux.ibm.com>
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Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
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---
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main/gcc/t-float128 | 11 +++++++++++
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1 file changed, 11 insertions(+)
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diff --git a/libgcc/config/rs6000/t-float128 b/libgcc/config/rs6000/t-float128
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index d5413445..b4e1afab 100644
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--- a/libgcc/config/rs6000/t-float128
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+++ b/libgcc/config/rs6000/t-float128
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@@ -69,6 +69,17 @@ $(fp128_ppc_obj) : INTERNAL_CFLAGS += $(FP128_CFLAGS_SW)
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$(fp128_obj) : $(fp128_includes)
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$(fp128_obj) : $(srcdir)/config/rs6000/quad-float128.h
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+# If we are switching the default long double type, we need to use
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+# -mno-gnu-attribute so that the __ibm128 support functions don't signal a
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+# linker error since the default long double is now IEEE 128-bit instead of IBM
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+# 128-bit.
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+ibm-ldouble$(objext) : INTERNAL_CFLAGS += -mno-gnu-attribute
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+
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+CFLAGS_TF_DECIMAL = -mno-gnu-attribute -Wno-psabi -mabi=ibmlongdouble
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+CFLAGS_KF_DECIMAL = -mno-gnu-attribute -Wno-psabi -mabi=ieeelongdouble
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+CFLAGS_KF_DECIMAL_SW = $(CFLAGS_KF_DECIMAL) -mno-float128-hardware
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+$(TF_DECIMAL_OBJS) : INTERNAL_CFLAGS += $(CFLAGS_TF_DECIMAL)
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+
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$(fp128_softfp_src) : $(srcdir)/soft-fp/$(subst -sw,,$(subst kf,tf,$@)) $(fp128_dep)
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@src="$(srcdir)/soft-fp/$(subst -sw,,$(subst kf,tf,$@))"; \
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echo "Create $@"; \
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--
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2.29.0
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