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The Linux Kernel Seeing Rare Code Activity Around SPARC64
One of the CPU architectures continuing to be supported by the mainline Linux kernel but rarely ever seeing any code activity is the SPARC64 architecture port for the once-interesting processors from Sun Microsystems.
Linutronix developer Thomas Weißschuh is working on converting SPARC64 over to using the generic vDSO library within the Linux kernel. Linux's Virtual Dynamic Shared Object ( vDSO) allows exposing select system calls directly to user-space for avoiding the overhead of the standard system call mechanism. With this patch series transitioning the SPARC code to the generic vDSO infrastructure saves several hundred lines of code and slightly reducing the SPARC maintenance burden.
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