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I found couple of events using al, bl, cl and dl registers for argument. These are not directly accepted by uprobe_events and thus needs to be mapped to ax, bx, cx and dx respectively. Few ex, /usr/bin/qemu-system-s390x css_adapter_interrupt: 1@%bl css_chpid_add: 1@%cl 1@%sil 1@%dl dma_bdrv_io: 8@%rbx 8@%rbp -8@%r14 1@%al /usr/bin/postgres buffer__read__done: ... -1@-bash -1@%al buffer__read__start: ... -1@%al I don't find any sdt events using ah, bh,... registers. But I also don't see any reason to not use them, so there might be rare events using these registers, and if so, perf should have a renaming logic for them too. Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexis Berlemont <alexis.berlemont@gmail.com> Cc: Hemant Kumar <hemant@linux.vnet.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20170328094754.3156-2-ravi.bangoria@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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