Daniel Borkmann 0869175220 bpf, x64: save 5 bytes in prologue when ebpf insns came from cbpf ... While it's rather cumbersome to reduce prologue for cBPF->eBPF migrations wrt spill/fill for r15 which is callee saved register due to bpf_error path in bpf_jit.S that is both used by migrations as well as native eBPF, we can still trivially save 5 bytes in prologue for the former since tail calls can never be used there. cBPF->eBPF migrations also have their own custom prologue in BPF asm that xors A and X reg anyway, so it's fine we skip this here. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org>		2018-02-23 22:50:00 -08:00
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bpf_jit_comp.c	bpf, x64: save 5 bytes in prologue when ebpf insns came from cbpf	2018-02-23 22:50:00 -08:00
bpf_jit.S	bpf: change x86 JITed program stack layout	2017-05-31 19:29:48 -04:00
Makefile	objtool, x86: Add several functions and files to the objtool whitelist	2017-06-30 10:19:19 +02:00