linux-kernel - Re: [PATCH 2/2] perf probe: Add PowerPC DWARF register number mappings

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Message-ID: <4BC314A8.80904@redhat.com>
Date:	Mon, 12 Apr 2010 08:40:08 -0400
From:	Masami Hiramatsu <mhiramat@...hat.com>
To:	Ian Munsie <imunsie@....ibm.com>
CC:	linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	benh@...nel.crashing.org, Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>, Ingo Molnar <mingo@...e.hu>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: Re: [PATCH 2/2] perf probe: Add PowerPC DWARF register number mappings

Hi Ian,

Ian Munsie wrote:
> From: Ian Munsie <imunsie@...ibm.com>
> 
> This patch adds mappings from the register numbers from DWARF to the
> register names used in the PowerPC Regs and Stack Access API. This
> allows perf probe to be used to record variable contents on PowerPC.
> 
> This patch depends on functionality in the powerpc/next tree, though it
> will compile fine without it. Specifically this patch depends on
> 359e4284a3f37aba7fd06d993863de2509d86f54
> 
> Signed-off-by: Ian Munsie <imunsie@...ibm.com>
> ---
>  tools/perf/arch/powerpc/Makefile                  |    1 +
>  tools/perf/arch/powerpc/include/arch_dwarf-regs.h |    6 ++
>  tools/perf/arch/powerpc/util/dwarf-regs.c         |   88 +++++++++++++++++++++
>  3 files changed, 95 insertions(+), 0 deletions(-)
>  create mode 100644 tools/perf/arch/powerpc/Makefile
>  create mode 100644 tools/perf/arch/powerpc/include/arch_dwarf-regs.h
>  create mode 100644 tools/perf/arch/powerpc/util/dwarf-regs.c
> 
> diff --git a/tools/perf/arch/powerpc/Makefile b/tools/perf/arch/powerpc/Makefile
> new file mode 100644
> index 0000000..1191403
> --- /dev/null
> +++ b/tools/perf/arch/powerpc/Makefile
> @@ -0,0 +1 @@
> +LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o
> diff --git a/tools/perf/arch/powerpc/include/arch_dwarf-regs.h b/tools/perf/arch/powerpc/include/arch_dwarf-regs.h
> new file mode 100644
> index 0000000..a7fc588
> --- /dev/null
> +++ b/tools/perf/arch/powerpc/include/arch_dwarf-regs.h
> @@ -0,0 +1,6 @@
> +#ifndef _PREF_ARCH_X86_DWARF_REGS_H
> +#define _PREF_ARCH_X86_DWARF_REGS_H

_PREF_ARCH_PPC_DWARF_REGS_H? :)

> +
> +#define get_arch_regstr(n) get_arch_regstr(n)
> +
> +#endif

Thank you,

-- 
Masami Hiramatsu
e-mail: mhiramat@...hat.com
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