From 57651ee4c84aacad1a66a61fc44689dee77731f5 Mon Sep 17 00:00:00 2001 From: "Paul E. Murphy" Date: Fri, 7 Feb 2020 14:08:08 -0600 Subject: 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 --- sysdeps/powerpc/powerpc64/Makefile | 6 ++++++ sysdeps/powerpc/powerpc64/le/Makefile | 3 ++- sysdeps/powerpc/powerpc64/power7/Makefile | 6 +++++- 3 files changed, 13 insertions(+), 2 deletions(-) diff --git a/sysdeps/powerpc/powerpc64/Makefile b/sysdeps/powerpc/powerpc64/Makefile index 6e88df1..dd49dbb 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 = $(no-special-regs) diff --git a/sysdeps/powerpc/powerpc64/le/Makefile b/sysdeps/powerpc/powerpc64/le/Makefile index 882cf86..d79ad22 100644 --- a/sysdeps/powerpc/powerpc64/le/Makefile +++ b/sysdeps/powerpc/powerpc64/le/Makefile @@ -6,7 +6,8 @@ type-ldouble-CFLAGS = no-gnu-attribute-CFLAGS = ifeq ($(ibm128-fcts),yes) -type-ldouble-CFLAGS += -mabi=ibmlongdouble +ibm128-abi-CFLAGS := -mabi=ibmlongdouble +type-ldouble-CFLAGS += $(ibm128-abi-CFLAGS) no-gnu-attribute-CFLAGS = -mno-gnu-attribute endif diff --git a/sysdeps/powerpc/powerpc64/power7/Makefile b/sysdeps/powerpc/powerpc64/power7/Makefile index 89a2296..9a0e747 100644 --- a/sysdeps/powerpc/powerpc64/power7/Makefile +++ b/sysdeps/powerpc/powerpc64/power7/Makefile @@ -1,7 +1,11 @@ ifeq ($(subdir),elf) # Prevent the use of VSX registers and insns in _dl_start, which under -O3 # optimization may require a TOC reference before relocations are resolved. -CFLAGS-rtld.c += -mno-vsx +CFLAGS-rtld.c += $(ibm128-abi-CFLAGS) -mno-vsx + +# Likewise, remove options to build IEEE long double +$(foreach suf,$(all-object-suffixes),$(objpfx)rtld$(suf)): \ + sysdep-CFLAGS := $(filter-out -mabi=ieeelongdouble,$(sysdep-CFLAGS)) endif ifeq ($(subdir),string) -- cgit v1.1