From 457bddfc2a8aa8a65b176afb408f0d068a590316 Mon Sep 17 00:00:00 2001 From: "Ryan S. Arnold" Date: Fri, 20 May 2011 06:34:48 -0400 Subject: Prevent Altivec and VSX insns on PowerPC64 when no FPRs or VRs are avail. (cherry picked from commit 4749a0058b27274a95c5a798e339c7299cdf890e) Conflicts: ChangeLog --- sysdeps/powerpc/powerpc64/Makefile | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'sysdeps/powerpc/powerpc64') diff --git a/sysdeps/powerpc/powerpc64/Makefile b/sysdeps/powerpc/powerpc64/Makefile index 78d4f07..136de30 100644 --- a/sysdeps/powerpc/powerpc64/Makefile +++ b/sysdeps/powerpc/powerpc64/Makefile @@ -12,7 +12,10 @@ endif # These flags prevent FPU or Altivec registers from being used, # for code called in contexts that is not allowed to touch those registers. -# Stupid GCC requires us to pass all these ridiculous switches. +# Stupid GCC requires us to pass all these ridiculous switches. We need to +# pass the -mno-* switches as well to prevent the compiler from attempting +# to emit altivec or vsx instructions, especially when the registers aren't +# available. no-special-regs := $(sort $(foreach n,40 41 50 51 60 61 62 63 \ $(foreach m,2 3 4 5 6 7 8 9, \ 3$m 4$m 5$m),\ @@ -20,7 +23,7 @@ no-special-regs := $(sort $(foreach n,40 41 50 51 60 61 62 63 \ $(sort $(foreach n,$(foreach m,0 1 2 3 4 5 6 7 8 9,\ $m 1$m 2$m) 30 31,\ -ffixed-v$n)) \ - -ffixed-vrsave -ffixed-vscr + -ffixed-vrsave -ffixed-vscr -mno-altivec -mno-vsx ifeq ($(subdir),csu) sysdep_routines += hp-timing -- cgit v1.1