diff options
| author | Bruce Beare <bruce.j.beare@intel.com> | 2011-12-09 13:27:08 -0800 |
|---|---|---|
| committer | Bruce Beare <bruce.j.beare@intel.com> | 2011-12-09 13:27:08 -0800 |
| commit | 3343b27c534fb4ea238f2feaa0d9346840ee2f92 (patch) | |
| tree | 365d6071e57ce7f015d696e1d7801b8210eb9468 /core/combo | |
| parent | 8af0efd6a157e682d88c9a6e030f37bab9860caf (diff) | |
| download | build-3343b27c534fb4ea238f2feaa0d9346840ee2f92.zip build-3343b27c534fb4ea238f2feaa0d9346840ee2f92.tar.gz build-3343b27c534fb4ea238f2feaa0d9346840ee2f92.tar.bz2 | |
x86: The default ATOM BSP flags need to be in sync with the NDK ABI
Change-Id: Ic741e1795c655ace1e33ae6708219f2708358090
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
Diffstat (limited to 'core/combo')
| -rw-r--r-- | core/combo/TARGET_linux-x86.mk | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/core/combo/TARGET_linux-x86.mk b/core/combo/TARGET_linux-x86.mk index 0fb6edc..3d09276 100644 --- a/core/combo/TARGET_linux-x86.mk +++ b/core/combo/TARGET_linux-x86.mk @@ -96,8 +96,25 @@ TARGET_GLOBAL_CPPFLAGS += \ -fno-use-cxa-atexit ifeq ($(TARGET_ARCH_VARIANT),x86-atom) - TARGET_GLOBAL_CFLAGS += -march=atom -mstackrealign -DUSE_SSSE3 -DUSE_SSE2 -mfpmath=sse + # Basic ATOM flags. + TARGET_GLOBAL_CFLAGS += -march=atom -mstackrealign -mfpmath=sse + + # There are various levels of ATOM processors out there. Different ones have different + # capabilities. This first define matches the NDK's minimum ABI requirements. + # Note: Not all of the flags set here are actually used in Android. They are provided + # to allow for the addition of corresponding optimizations. + TARGET_GLOBAL_CFLAGS += -DUSE_MMX -DUSE_SSE -DUSE_SSE2 -DUSE_SSE3 + + # If you wish to build a BSP that will only be used on hardware that has additional + # available instructions, enable them here. By default, this is commented off so that + # the default images can run on all processors that are NDK ABI compliant. + # TARGET_GLOBAL_CFLAGS += -DUSE_SSSE3 else + # Plain 'x86' - lowest common denominator. This should run pretty much on any hardware. + # + # Note: The NDK's ABI (see the NDK ABI documentation) requires many of the more recent + # instruction set additions. You can build an "x86" BSP that will run on very old hardware, + # but it won't be able to run much of the x86 NDK compliant code. TARGET_GLOBAL_CFLAGS += -march=i686 endif |