I purchased a used Samsung Galaxy Core Prime for testing. It has a Cortex-A53/ARM-v8a (Qualcomm's SnapDragon 410) and it is powered by Android 5.1.1.
The Cortex-A53/ARM-v8a is a 64-bit architecture. However, when I cat /proc/cpuinfo, it appears to be in a 32-bit mode (see below). How do I enable 64-bit mode for testing? -------- This device is for testing only. I test builds of OpenSSL, Crypto++ and a few other libraries from the command line using the NDK, push it to the device, and then execute self tests over adb. That's all the device is used for. -------- $ adb shell cat /proc/cpuinfo processor : 0 model name : ARMv7 Processor rev 0 (v7l) BogoMIPS : 38.40 Features : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 0 processor : 1 model name : ARMv7 Processor rev 0 (v7l) BogoMIPS : 38.40 Features : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 0 processor : 2 model name : ARMv7 Processor rev 0 (v7l) BogoMIPS : 38.40 Features : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 0 processor : 3 model name : ARMv7 Processor rev 0 (v7l) BogoMIPS : 38.40 Features : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 0 Hardware : Qualcomm Technologies, Inc MSM8916 Revision : 0006 Serial : 000009f200000001 Processor : ARMv7 Processor rev 0 (v7l) -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. To post to this group, send email to android-developers@googlegroups.com. Visit this group at https://groups.google.com/group/android-developers. To view this discussion on the web visit https://groups.google.com/d/msgid/android-developers/d5258300-6cf0-4de0-807a-fb5da160b898%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.