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AJvYcCXrRkkpj69x79R2TXbEbYDwvPpQ8CVgshB4IGIBzzoZq8nedgNXsrVUHGDWvA6MPnNLsJRWPHf3VlEiMg==@lists.infradead.org X-Gm-Message-State: AOJu0YzlhQyjl4fhLPcb2yC+suviebocNNn7GLpb5iimk6e3ByGvfkna ulPHlu5+Kfb+I7q8eXvxatx7xSZdv0KgnBUKEId7UGTZ//evQODe8QCBfUVbOGNjmxG8rrvNtpt wFzGYRw== X-Google-Smtp-Source: AGHT+IHww5hKkYtrtEd7xFxuwiqgL1g9EP1jrDvOSFsM0YJ3aBoaypiL1q7z5gT/re1gw8cKAYiVLMh2TMTK X-Received: from irogers.svl.corp.google.com ([2620:15c:2c5:11:a00a:f237:9bc0:79c]) (user=irogers job=sendgmr) by 2002:a05:690c:9a84:b0:6e3:19d7:382a with SMTP id 00721157ae682-6e3d3f7f52fmr1338867b3.1.1729124764951; Wed, 16 Oct 2024 17:26:04 -0700 (PDT) Date: Wed, 16 Oct 2024 17:25:15 -0700 In-Reply-To: <20241017002520.59124-1-irogers@google.com> Message-Id: <20241017002520.59124-16-irogers@google.com> Mime-Version: 1.0 References: <20241017002520.59124-1-irogers@google.com> X-Mailer: git-send-email 2.47.0.105.g07ac214952-goog Subject: [PATCH v3 15/20] perf s390: Remove dwarf-regs.c From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Kan Liang , John Garry , Will Deacon , James Clark , Mike Leach , Leo Yan , Guo Ren , Paul Walmsley , Palmer Dabbelt , Albert Ou , Nick Terrell , "Masami Hiramatsu (Google)" , Changbin Du , Guilherme Amadio , Yang Jihong , Aditya Gupta , Athira Rajeev , Masahiro Yamada , Bibo Mao , Huacai Chen , Kajol Jain , Atish Patra , Shenlin Liang , Anup Patel , Oliver Upton , "Steinar H. Gunderson" , "Dr. David Alan Gilbert" , Chen Pei , Dima Kogan , Przemek Kitszel , "David S. Miller" , Alexander Lobakin , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-riscv@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241017_012610_869136_0FCB893B X-CRM114-Status: GOOD ( 16.54 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org 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. Tidy up the EM_NONE cases for s390 in dwarf-regs.c. Signed-off-by: Ian Rogers --- tools/perf/arch/s390/util/Build | 1 - tools/perf/arch/s390/util/dwarf-regs.c | 16 ---------------- tools/perf/util/dwarf-regs.c | 4 ++-- tools/perf/util/include/dwarf-regs.h | 2 +- 4 files changed, 3 insertions(+), 20 deletions(-) delete mode 100644 tools/perf/arch/s390/util/dwarf-regs.c diff --git a/tools/perf/arch/s390/util/Build b/tools/perf/arch/s390/util/Build index 787410f99bb3..736c0ad09194 100644 --- a/tools/perf/arch/s390/util/Build +++ b/tools/perf/arch/s390/util/Build @@ -2,7 +2,6 @@ perf-util-y += header.o perf-util-$(CONFIG_LIBTRACEEVENT) += kvm-stat.o perf-util-y += perf_regs.o -perf-util-$(CONFIG_LIBDW) += dwarf-regs.o perf-util-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o perf-util-y += machine.o diff --git a/tools/perf/arch/s390/util/dwarf-regs.c b/tools/perf/arch/s390/util/dwarf-regs.c deleted file mode 100644 index 5bcf3192623a..000000000000 --- a/tools/perf/arch/s390/util/dwarf-regs.c +++ /dev/null @@ -1,16 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Mapping of DWARF debug register numbers into register names. - * - * Copyright IBM Corp. 2010, 2017 - * Author(s): Hendrik Brueckner - * - */ - -#include -#include "dwarf-regs-table.h" - -const char *get_arch_regstr(unsigned int n) -{ - return (n >= ARRAY_SIZE(s390_dwarf_regs)) ? NULL : s390_dwarf_regs[n]; -} diff --git a/tools/perf/util/dwarf-regs.c b/tools/perf/util/dwarf-regs.c index 2c6b197556dd..1649fc07f4f5 100644 --- a/tools/perf/util/dwarf-regs.c +++ b/tools/perf/util/dwarf-regs.c @@ -34,7 +34,7 @@ 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_PPC64 || EM_HOST == EM_RISCV || EM_HOST == EM_S390 if (machine == EM_NONE) { /* Generic arch - use host arch */ machine = EM_HOST; @@ -43,7 +43,7 @@ const char *get_dwarf_regstr(unsigned int n, unsigned int machine, unsigned int switch (machine) { #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_PPC64 && EM_HOST != EM_RISCV && EM_HOST != EM_S390 case EM_NONE: /* Generic arch - use host arch */ return get_arch_regstr(n); #endif diff --git a/tools/perf/util/include/dwarf-regs.h b/tools/perf/util/include/dwarf-regs.h index 35f4f33205da..25f3d6b90f10 100644 --- a/tools/perf/util/include/dwarf-regs.h +++ b/tools/perf/util/include/dwarf-regs.h @@ -81,7 +81,7 @@ #ifdef HAVE_LIBDW_SUPPORT #if !defined(__x86_64__) && !defined(__i386__) && !defined(__aarch64__) && !defined(__arm__) \ && !defined(__loongarch__) && !defined(__mips__) && !defined(__powerpc__) \ - && !defined(__powerpc64__) && !defined(__riscv__) + && !defined(__powerpc64__) && !defined(__riscv__) && !defined(__s390x__) const char *get_arch_regstr(unsigned int n); #endif