Support for AArch64 on Linux

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#5 · Created  · Last updated

Description

This PR adds initial support for building and running pmbench for AArch64 on Linux.

 

Example build command line:

make pmbench march=aarch64

 

  • Makefile: Add required defs to differentiate between x86 and AArch64

  • access.c: Add generic C code for read/write access

    x86 probably uses more efficient assembly code for that. C code should be fine given that it's accessing volatile data so that the compiler does not optimise it away. Guard x86 assembly code with x86 and use generic C code for other architectures, including aarch64.

  • aarch64: Implement rdtsc[p]-like function using aarch64's virtual counter

  • aarch64: Use generic C code for __my_flsl

  • aarch64: Implement __pause and guard x86 instruction

  • aarch64: Implement get frequency and guard x86 code

  • aarch64: Guard x86's _sys_cpuid assembly

 

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