On Mon, 27 Mar 2017 13:28:27 +0530
Ravi Bangoria <ravi.bango...@linux.vnet.ibm.com> wrote:
> 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
Of course, it should be suppoted. BTW, wouldn't we take care about ah, bh ...
too?
Acked-by: Masami Hiramatsu <mhira...@kernel.org>
Thanks!
>
> Signed-off-by: Ravi Bangoria <ravi.bango...@linux.vnet.ibm.com>
> ---
> tools/perf/arch/x86/util/perf_regs.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/tools/perf/arch/x86/util/perf_regs.c
> b/tools/perf/arch/x86/util/perf_regs.c
> index d8a8dcf..99faab4 100644
> --- a/tools/perf/arch/x86/util/perf_regs.c
> +++ b/tools/perf/arch/x86/util/perf_regs.c
> @@ -40,12 +40,16 @@ struct sdt_name_reg {
> static const struct sdt_name_reg sdt_reg_renamings[] = {
> SDT_NAME_REG(eax, ax),
> SDT_NAME_REG(rax, ax),
> + SDT_NAME_REG(al, ax),
> SDT_NAME_REG(ebx, bx),
> SDT_NAME_REG(rbx, bx),
> + SDT_NAME_REG(bl, ax),
> SDT_NAME_REG(ecx, cx),
> SDT_NAME_REG(rcx, cx),
> + SDT_NAME_REG(cl, ax),
> SDT_NAME_REG(edx, dx),
> SDT_NAME_REG(rdx, dx),
> + SDT_NAME_REG(dl, ax),
> SDT_NAME_REG(esi, si),
> SDT_NAME_REG(rsi, si),
> SDT_NAME_REG(sil, si),
> --
> 2.9.3
>
--
Masami Hiramatsu <mhira...@kernel.org>
