2010-07-15 00:29:48

by Arnaldo Carvalho de Melo

Subject: [GIT PULL 0/1] perf/core improvements

Hi Ingo,

Please pull from:

git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux-2.6 perf/core

Regards,

- Arnaldo

Matt Fleming (1):
perf tools: Add DWARF register lookup for SH

tools/perf/arch/sh/Makefile | 4 ++
tools/perf/arch/sh/util/dwarf-regs.c | 55 ++++++++++++++++++++++++++++++++++
2 files changed, 59 insertions(+), 0 deletions(-)
create mode 100644 tools/perf/arch/sh/Makefile
create mode 100644 tools/perf/arch/sh/util/dwarf-regs.c

2010-07-15 00:29:43

by Arnaldo Carvalho de Melo

Subject: [PATCH 1/1] perf tools: Add DWARF register lookup for SH

From: Matt Fleming <[email protected]>

Implement get_arch_regstr() for SH so that, given a DWARF register number, the
corresponding symbolic name of that register can be looked up.

Acked-by: Masami Hiramatsu <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Ian Munsie <[email protected]>
LKML-Reference: <e55812819ad18c2ceca5651ac7698a2af46180d7.1278774279.git.matt@console-pimps.org>
Signed-off-by: Matt Fleming <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
---
tools/perf/arch/sh/Makefile | 4 ++
tools/perf/arch/sh/util/dwarf-regs.c | 55 ++++++++++++++++++++++++++++++++++
2 files changed, 59 insertions(+), 0 deletions(-)
create mode 100644 tools/perf/arch/sh/Makefile
create mode 100644 tools/perf/arch/sh/util/dwarf-regs.c

diff --git a/tools/perf/arch/sh/Makefile b/tools/perf/arch/sh/Makefile
new file mode 100644
index 0000000..15130b5
--- /dev/null
+++ b/tools/perf/arch/sh/Makefile
@@ -0,0 +1,4 @@
+ifndef NO_DWARF
+PERF_HAVE_DWARF_REGS := 1
+LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o
+endif
diff --git a/tools/perf/arch/sh/util/dwarf-regs.c b/tools/perf/arch/sh/util/dwarf-regs.c
new file mode 100644
index 0000000..a11edb0
--- /dev/null
+++ b/tools/perf/arch/sh/util/dwarf-regs.c
@@ -0,0 +1,55 @@
+/*
+ * Mapping of DWARF debug register numbers into register names.
+ *
+ * Copyright (C) 2010 Matt Fleming <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include <libio.h>
+#include <dwarf-regs.h>
+
+/*
+ * Generic dwarf analysis helpers
+ */
+
+#define SH_MAX_REGS 18
+const char *sh_regs_table[SH_MAX_REGS] = {
+ "r0",
+ "r1",
+ "r2",
+ "r3",
+ "r4",
+ "r5",
+ "r6",
+ "r7",
+ "r8",
+ "r9",
+ "r10",
+ "r11",
+ "r12",
+ "r13",
+ "r14",
+ "r15",
+ "pc",
+ "pr",
+};
+
+/* Return architecture dependent register string (for kprobe-tracer) */
+const char *get_arch_regstr(unsigned int n)
+{
+ return (n <= SH_MAX_REGS) ? sh_regs_table[n] : NULL;
+}
--
1.6.2.5

2010-07-15 16:25:49

by Ingo Molnar

Subject: Re: [GIT PULL 0/1] perf/core improvements

* Arnaldo Carvalho de Melo <[email protected]> wrote:

> Hi Ingo,
>
> Please pull from:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux-2.6 perf/core
>
> Regards,
>
> - Arnaldo
>
> Matt Fleming (1):
> perf tools: Add DWARF register lookup for SH
>
> tools/perf/arch/sh/Makefile | 4 ++
> tools/perf/arch/sh/util/dwarf-regs.c | 55 ++++++++++++++++++++++++++++++++++
> 2 files changed, 59 insertions(+), 0 deletions(-)
> create mode 100644 tools/perf/arch/sh/Makefile
> create mode 100644 tools/perf/arch/sh/util/dwarf-regs.c

Pulled, thanks!

Ingo