On Tue, Mar 16, 2010 at 5:47 PM, Atsuo Igarashi <[email protected]>wrote:
> Hi, > > You can specify with TARGET_ARCH_VARIANT in build/core/combo/linux- > arm.mk. > I'm using armv7-a, so I'm not sure about armv6. > > I am using android prebuilt toolchain, it support only armv4t, armv5te , armv5te-vfp and armv7-a only, no support for armv6 or armv6 variants. If I have armv6 variant and still compiling with armv5te, is that make big difference ? should we use armv-7 incase armv6 not available. Regards, > Atsuo > > On 3月16日, 午後9:59, supermaximus79 <[email protected]> wrote: > > Thanks for reply. > > I already ported ASHMEM to my kernel. > > But what about armv6 optimization in Android? Is there a patch > > available somewhere? > > Because by default cross compiler uses armv5te optimization, and this > > means android will work slow on my cpu, > > > > Did you change bionic kernel headers for 31 kernel, or just compiled > > Android as is, i mean just downloaded from git and compile? > > > > On Mar 16, 3:44 am, abukustfan <[email protected]> wrote: > > > > > Yes, my target board work on linux kernel 2.6.31 with android-2.1_r1 > > > tag. > > > > > You can simply get ashmem.c and its header/Makefile ... etc from old > > > version kernel, > > > then add/modify those file to you new kernel. > > > > > On Mar 15, 5:52šam, íÁËÓÉÍ áÎÄÒÕÝÅÎËÏ <[email protected]> wrote: > > > > > > Hello! > > > > > > Is it possible to use linux kernel 2.6.31 with android 2.1? > > > > I have red athttp://pdk.android.com/online-pdk/guide/bring_up.html > > > > that linux kernel for android need support only: > > > > # > > > > # Android > > > > # > > > > # CONFIG_ANDROID_GADGET is not set > > > > # CONFIG_ANDROID_RAM_CONSOLE is not set > > > > CONFIG_ANDROID_POWER=y > > > > CONFIG_ANDROID_POWER_STAT=y > > > > CONFIG_ANDROID_LOGGER=y > > > > # CONFIG_ANDROID_TIMED_GPIO is not set > > > > CONFIG_ANDROID_BINDER_IPC=y > > > > > > However in /core/init/init.c i found that it uses ASHMEM device. But > there is no support for ASHMEM in 31 kernel. > > > > So what about this? > > > > > > Also i red in some forums regarding CPU TLS hardware register. Some > new platforms (for ex. cortex) has it's hardware support, some - doesn't. > What about Android? Does it use hardware or software TLS? > > > > > > Also i didn't find armv6 architecture in Android buid system. Only > armv5te and armv7. Will android support armv6 architecture, or is there any > patch available to support armv6 architecture in Android? > > > > > > Thanks! > > -- > unsubscribe: > [email protected]<android-porting%[email protected]> > website: http://groups.google.com/group/android-porting > -- unsubscribe: [email protected] website: http://groups.google.com/group/android-porting
