Commit a4747c09 authored by Ian Rogers's avatar Ian Rogers Committed by Namhyung Kim
Browse files

perf xtensa: Remove dwarf-regs.c 



The file just provides the function get_arch_regstr, however, if in
the only caller get_dwarf_regstr EM_HOST is used for the EM_NONE case
the function can never be called. So remove as dead code. As this is
the only file in the arch/xtensa/util clean up Build files. Tidy up the
EM_NONE cases for xtensa in dwarf-regs.c.

Reviewed-by: default avatarMasami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: default avatarIan Rogers <irogers@google.com>
Cc: Anup Patel <anup@brainfault.org>
Cc: Yang Jihong <yangjihong@bytedance.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Shenlin Liang <liangshenlin@eswincomputing.com>
Cc: Nick Terrell <terrelln@fb.com>
Cc: Guilherme Amadio <amadio@gentoo.org>
Cc: Steinar H. Gunderson <sesse@google.com>
Cc: Changbin Du <changbin.du@huawei.com>
Cc: Alexander Lobakin <aleksander.lobakin@intel.com>
Cc: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Guo Ren <guoren@kernel.org>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: James Clark <james.clark@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Chen Pei <cp0613@linux.alibaba.com>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: Aditya Gupta <adityag@linux.ibm.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-riscv@lists.infradead.org
Cc: Bibo Mao <maobibo@loongson.cn>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Atish Patra <atishp@rivosinc.com>
Cc: Dima Kogan <dima@secretsauce.net>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Dr. David Alan Gilbert <linux@treblig.org>
Cc: linux-csky@vger.kernel.org
Link: https://lore.kernel.org/r/20241108234606.429459-19-irogers@google.com


Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
parent 85567a2a

tools/perf/arch/xtensa/Build

deleted100644 → 0
+0 −1
Original line number Diff line number Diff line 
perf-util-y += util/

tools/perf/arch/xtensa/util/Build

deleted100644 → 0
+0 −1
Original line number Diff line number Diff line 
perf-$(CONFIG_LIBDW) += dwarf-regs.o

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

deleted100644 → 0
+0 −21
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-or-later

/*

 * Mapping of DWARF debug register numbers into register names.

 *

 * Copyright (c) 2015 Cadence Design Systems Inc.

 */



#include <stddef.h>

#include <dwarf-regs.h>



#define XTENSA_MAX_REGS 16



const char *xtensa_regs_table[XTENSA_MAX_REGS] = {

	"a0", "a1", "a2", "a3", "a4", "a5", "a6", "a7",

	"a8", "a9", "a10", "a11", "a12", "a13", "a14", "a15",

};



const char *get_arch_regstr(unsigned int n)

{

	return n < XTENSA_MAX_REGS ? xtensa_regs_table[n] : NULL;

}

tools/perf/util/dwarf-regs.c

+2 −2
Original line number Diff line number Diff line
@@ -35,7 +35,7 @@ const char *get_dwarf_regstr(unsigned int n, unsigned int machine, unsigned int 
#if EM_HOST == EM_X86_64 || EM_HOST == EM_386 || EM_HOST == EM_AARCH64 || EM_HOST == EM_ARM \

    || EM_HOST == EM_CSKY || EM_HOST == EM_LOONGARCH || EM_HOST == EM_MIPS || EM_HOST == EM_PPC \

    || EM_HOST == EM_PPC64 || EM_HOST == EM_RISCV || EM_HOST == EM_S390 || EM_HOST == EM_SH \

    || EM_HOST == EM_SPARC || EM_HOST == EM_SPARCV9

    || EM_HOST == EM_SPARC || EM_HOST == EM_SPARCV9 || EM_HOST == EM_XTENSA

	if (machine == EM_NONE) {

		/* Generic arch - use host arch */

		machine = EM_HOST;
@@ -45,7 +45,7 @@ const char *get_dwarf_regstr(unsigned int n, unsigned int machine, unsigned int 
#if EM_HOST != EM_X86_64 && EM_HOST != EM_386 && EM_HOST != EM_AARCH64 && EM_HOST != EM_ARM \

    && EM_HOST != EM_CSKY && EM_HOST != EM_LOONGARCH && EM_HOST != EM_MIPS && EM_HOST != EM_PPC \

    && EM_HOST != EM_PPC64 && EM_HOST != EM_RISCV && EM_HOST != EM_S390 && EM_HOST != EM_SH \

    && EM_HOST != EM_SPARC && EM_HOST != EM_SPARCV9

    && EM_HOST != EM_SPARC && EM_HOST != EM_SPARCV9 && EM_HOST != EM_XTENSA

	case EM_NONE:	/* Generic arch - use host arch */

		return get_arch_regstr(n);

#endif

tools/perf/util/include/dwarf-regs.h

+1 −1
Original line number Diff line number Diff line
@@ -92,7 +92,7 @@ 
#if !defined(__x86_64__) && !defined(__i386__) && !defined(__aarch64__) && !defined(__arm__) \

    && !defined(__loongarch__) && !defined(__mips__) && !defined(__powerpc__) \

    && !defined(__powerpc64__) && !defined(__riscv__) && !defined(__s390x__) && !defined(__sh__) \

    && !defined(__sparc64__) && !defined(__sparc__)

    && !defined(__sparc64__) && !defined(__sparc__) && !defined(__xtensa__)

const char *get_arch_regstr(unsigned int n);

#endif