The Android run-time library (media, graphics, filesystem, to name but a few) are also 32bit, but as we reach the layer of the dalvikvm, then the number of bits becomes irrelevant as it is at this point, the apks coming from the Google Play Store are native bytecode (A "by-product" of generated Java code compiled into a portable bytecode) which targets the DalvikVM (Virtual Machine) which in turn interprets and translates the bytecode targetting the raw ARM instruction set.įroyo was the last Android that enabled compilation under a 32bit hosted environment in which it was cross-compiled targetting the ARM chipset. Recommended distribution, by Google, for building and cross-compiling Android is Ubuntu. In the realm of the ARM chipsets which is the common factor, the entire Android stack, from the near-identical kernel based on Linux, are in fact, 32bit, cross-compiled from usually either a 32bit/64bit host environment, the host environment is usually one of the distributions of Linux.
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