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authorDaniel Borkmann <[email protected]>2018-05-14 23:22:33 +0200
committerAlexei Starovoitov <[email protected]>2018-05-14 19:11:45 -0700
commit56ea6a8b4949c66d550d05e92da8ef4351b90027 (patch)
tree21af064891911296afea5e9193c902f848cc03fe /tools/perf/scripts/python/syscall-counts.py
parent6d2eea6fb0791bf191043a68937c9aa59c5ea678 (diff)
bpf, arm64: save 4 bytes in prologue when ebpf insns came from cbpf
We can trivially save 4 bytes in prologue for cBPF since tail calls can never be used from there. The register push/pop is pairwise, here, x25 (fp) and x26 (tcc), so no point in changing that, only reset to zero is not needed. Signed-off-by: Daniel Borkmann <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
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