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Commit 04aa521e authored by Dan Willemsen's avatar Dan Willemsen
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Add a 32-bit x86_64 arch variant 

The current 32-bit configuration for generic x86_64 targets inherits some
variables (SSE4 support) from the 64-bit configuration, and overrides
the make variables used for other configurations (SSSE3). Ideally, these
would be using different variables, but until then, unify the
configuration for x86_64 targets so that everything is consistent.

Bug: 28694691
Change-Id: I47e67299d4c632e7491d7e73dc0fc6480ef08006
parent af14b921

core/combo/arch/x86/x86_64.mk

0 → 100644
+18 −0
Original line number Diff line number Diff line 
# This file is used as the second (32-bit) architecture when building a generic

# x86_64 64-bit platform image. (full_x86_64-eng / sdk_x86_64-eng)

#

# The generic 'x86' variant cannot be used, since it resets some flags used

# by the 'x86_64' variant.



ARCH_X86_HAVE_SSSE3 := true

ARCH_X86_HAVE_MOVBE := false # Only supported on Atom.

ARCH_X86_HAVE_POPCNT := true

ARCH_X86_HAVE_SSE4 := true

ARCH_X86_HAVE_SSE4_1 := true

ARCH_X86_HAVE_SSE4_2 := true





# Some intrinsic functions used by libcxx only exist for prescott or newer CPUs.

arch_variant_cflags := \

    -march=prescott \

target/board/generic_x86_64/BoardConfig.mk

+1 −1
Original line number Diff line number Diff line
@@ -13,7 +13,7 @@ TARGET_PRELINK_MODULE := false 


TARGET_2ND_CPU_ABI := x86

TARGET_2ND_ARCH := x86

TARGET_2ND_ARCH_VARIANT := x86

TARGET_2ND_ARCH_VARIANT := x86_64



TARGET_USES_64_BIT_BINDER := true