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Commit 0dd9ac63 authored by Matt Fleming's avatar Matt Fleming Committed by Arnaldo Carvalho de Melo
Browse files

perf tools: Add DWARF register lookup for SH 



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: default avatarMasami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Ian Munsie <imunsie@au.ibm.com>
LKML-Reference: <e55812819ad18c2ceca5651ac7698a2af46180d7.1278774279.git.matt@console-pimps.org>
Signed-off-by: default avatarMatt Fleming <matt@console-pimps.org>
Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 8bd0e1be

tools/perf/arch/sh/Makefile

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Original line number Diff line number Diff line 
ifndef NO_DWARF

PERF_HAVE_DWARF_REGS := 1

LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o

endif

tools/perf/arch/sh/util/dwarf-regs.c

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Original line number Diff line number Diff line 
/*

 * Mapping of DWARF debug register numbers into register names.

 *

 * Copyright (C) 2010 Matt Fleming <matt@console-pimps.org>

 *

 * 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;

}