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toolchaintechnotes: highlight why the example (ubuntu vs android) needs "os" field

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Xi Ruoyao 2022-09-30 16:22:20 +08:00
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part3intro/toolchaintechnotes.xml
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@ -158,8 +158,10 @@
two systems can share the same kernel but still be too different to two systems can share the same kernel but still be too different to
use a same triplet for them. For example, an Android running on a use a same triplet for them. For example, an Android running on a
mobile phone is completely different from Ubuntu running on an ARM64 mobile phone is completely different from Ubuntu running on an ARM64
server. Without an emulation layer, you cannot run an executable for server, despite they are running on the same type of CPU (ARM64) and
the server on the mobile phone or vice versa. So the using the same kernel (Linux).
Without an emulation layer, you cannot run an
executable for the server on the mobile phone or vice versa. So the
<quote>system</quote> field is separated into kernel and os fields to <quote>system</quote> field is separated into kernel and os fields to
designate these systems unambiguously. For our example, the Android designate these systems unambiguously. For our example, the Android
system is designated <literal>aarch64-unknown-linux-android</literal>, system is designated <literal>aarch64-unknown-linux-android</literal>,