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authorPaul E. Murphy <murphyp@linux.vnet.ibm.com>2020-02-07 14:08:08 -0600
committerPaul E. Murphy <murphyp@linux.vnet.ibm.com>2020-03-25 14:34:23 -0500
commit57651ee4c84aacad1a66a61fc44689dee77731f5 (patch)
tree927c0eaf318208f47c72f3661e32090a834941d0 /sysdeps/powerpc/powerpc64/Makefile
parent39517c008f9630cc3cfa0dc7619c5784cde1b3a2 (diff)
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powerpc64: apply -mabi=ibmlongdouble to special files
Some of these files depend on the avoidance of using the various
register sets of POWER.  When enabling the IEEE 128 long double,
we must be sure to disable this ABI as some compilers will
refuse to compile if -mno-vsx and -mabi=ieeelongdouble are both
present.

Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
Diffstat (limited to 'sysdeps/powerpc/powerpc64/Makefile')
-rw-r--r--sysdeps/powerpc/powerpc64/Makefile6
1 files changed, 6 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/Makefile b/sysdeps/powerpc/powerpc64/Makefile
index 6e88df1d69..dd49dbbce2 100644
--- a/sysdeps/powerpc/powerpc64/Makefile
+++ b/sysdeps/powerpc/powerpc64/Makefile
@@ -25,6 +25,12 @@ no-special-regs := $(sort $(foreach n,40 41 50 51 60 61 62 63 \
 				    -ffixed-v$n)) \
 		   -ffixed-vrsave -ffixed-vscr -mno-altivec -mno-vsx
 
+# Likewise, we must disable IEEE long double support as some (all?)
+# compilers will not accept the above options with IEEE long double.
+ifeq ($(ibm128-fcts),yes)
+no-special-regs += -mabi=ibmlongdouble
+endif
+
 # Need to prevent gcc from using fprs in code used during dynamic linking.
 
 CFLAGS-dl-runtime.os = $(no-special-regs)