package-nopast/base/musl/pkg/gcc/0042-Backport-of-patch-of-the-GCC-11-to-avoid-the-GNU-Att.patch

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From 27a633f79c9a0248ce673ff2d9c397e136427b01 Mon Sep 17 00:00:00 2001
From: None <@>
Date: Wed, 21 Oct 2020 17:35:50 +0000
Subject: Backport of patch of the GCC 11 to avoid the GNU Attributes into
 libgcc

source: https://gcc.gnu.org/pipermail/gcc-patches/2020-September/554770.html

The -mno-gnu-attribute avoids the linker emit an error when check
the type of long double 128bit.

Signed-off-by: Gustavo L F Walbon <gwalbon@linux.ibm.com>
Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
---
 main/gcc/t-float128 | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/libgcc/config/rs6000/t-float128 b/libgcc/config/rs6000/t-float128
index d5413445..b4e1afab 100644
--- a/libgcc/config/rs6000/t-float128
+++ b/libgcc/config/rs6000/t-float128
@@ -69,6 +69,17 @@ $(fp128_ppc_obj)	 : INTERNAL_CFLAGS += $(FP128_CFLAGS_SW)
 $(fp128_obj)		 : $(fp128_includes)
 $(fp128_obj)		 : $(srcdir)/config/rs6000/quad-float128.h
 
+# If we are switching the default long double type, we need to use
+# -mno-gnu-attribute so that the __ibm128 support functions don't signal a
+# linker error since the default long double is now IEEE 128-bit instead of IBM
+# 128-bit.
+ibm-ldouble$(objext)   : INTERNAL_CFLAGS += -mno-gnu-attribute
+
+CFLAGS_TF_DECIMAL      = -mno-gnu-attribute -Wno-psabi -mabi=ibmlongdouble
+CFLAGS_KF_DECIMAL      = -mno-gnu-attribute -Wno-psabi -mabi=ieeelongdouble
+CFLAGS_KF_DECIMAL_SW   = $(CFLAGS_KF_DECIMAL) -mno-float128-hardware
+$(TF_DECIMAL_OBJS) : INTERNAL_CFLAGS += $(CFLAGS_TF_DECIMAL)
+
 $(fp128_softfp_src) : $(srcdir)/soft-fp/$(subst -sw,,$(subst kf,tf,$@)) $(fp128_dep)
 	@src="$(srcdir)/soft-fp/$(subst -sw,,$(subst kf,tf,$@))"; \
 	echo "Create $@"; \
-- 
2.29.0