diff options
Diffstat (limited to 'core/combo/arch')
| -rw-r--r-- | core/combo/arch/x86/x86-atom.mk | 18 | ||||
| -rw-r--r-- | core/combo/arch/x86/x86.mk | 35 |
2 files changed, 53 insertions, 0 deletions
diff --git a/core/combo/arch/x86/x86-atom.mk b/core/combo/arch/x86/x86-atom.mk new file mode 100644 index 0000000..85998e7 --- /dev/null +++ b/core/combo/arch/x86/x86-atom.mk @@ -0,0 +1,18 @@ +# This file contains feature macro definitions specific to the +# 'x86-atom' arch variant. This is an extension of the 'x86' base variant +# that adds Atom-specific features. +# +# See build/core/combo/arch/x86/x86.mk for differences. +# +ARCH_X86_HAVE_MMX := true +ARCH_X86_HAVE_SSE := true +ARCH_X86_HAVE_SSE2 := true +ARCH_X86_HAVE_SSE3 := true + +ARCH_X86_HAVE_SSSE3 := true +ARCH_X86_HAVE_MOVBE := true +ARCH_X86_HAVE_POPCNT := false # popcnt is not supported by current Atom CPUs + +# This flag is used to enabled Atom-specific optimizations with our toolchain +# +TARGET_GLOBAL_CFLAGS += -march=atom diff --git a/core/combo/arch/x86/x86.mk b/core/combo/arch/x86/x86.mk new file mode 100644 index 0000000..476da45 --- /dev/null +++ b/core/combo/arch/x86/x86.mk @@ -0,0 +1,35 @@ +# This file contains feature macro definitions specific to the +# base 'x86' platform ABI. This one must *strictly* match the NDK x86 ABI +# which mandates specific CPU extensions to be available. +# +# It is also used to build full_x86-eng / sdk_x86-eng platform images that +# are run in the emulator under KVM emulation (i.e. running directly on +# the host development machine's CPU). +# + +# If your target device doesn't support the four following features, then +# it cannot be compatible with the NDK x86 ABI. You should define a new +# target arch variant (e.g. "x86-mydevice") and a corresponding file +# under build/core/combo/arch/x86/ +# +ARCH_X86_HAVE_MMX := true +ARCH_X86_HAVE_SSE := true +ARCH_X86_HAVE_SSE2 := true +ARCH_X86_HAVE_SSE3 := true + +# These features are optional and shall not be included in the base platform +# Otherwise, they sdk_x86-eng system images might fail to run on some +# developer machines. +# + +ARCH_X86_HAVE_SSSE3 := false +ARCH_X86_HAVE_MOVBE := false +ARCH_X86_HAVE_POPCNT := false + + +# XXX: This flag is probably redundant, because it should be set by default +# by our toolchain binaries. However, there have been reports that this may +# not always work as intended, so keep it unless we have the time to check +# everything properly. + +TARGET_GLOBAL_CFLAGS += -march=i686 |