From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yw1-f202.google.com (mail-yw1-f202.google.com [209.85.128.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A267921CF82 for ; Fri, 8 Nov 2024 23:46:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731109602; cv=none; b=BwVKKVyDIHtcvu3kkvvtDWg9tlKvOmWd1vnsspme9IOXJ9OVZZhWykdDcm04DhVFp/4kMxrerZ42wDqZi8q3fwmEg3Gwdvaw7YiFMA2oXAAXMJLkQZZwfIZ2uZVMiZVQwNoJml0uH7tCe9IYg+op/CElqGohMvY1LQXtIE+xdHI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731109602; c=relaxed/simple; bh=DvtQSh02lo5Mqu2qHNyFd3vKH9qVgnQoc+CVstoBu90=; h=Date:In-Reply-To:Message-Id:Mime-Version:References:Subject:From: To:Content-Type; b=LGGDvX3HAgSNAn3Ce1UbvOkBYehpjdirAke8K6UMWjgqL043pebvjdIgOACbKXhzJzYKG2ltbUlrcvb0wLaBHty3SVhZIYvqu2JWOLIIdWYJ553GUb0eipAH9E2U9jNvgVkJI/RFH4/Ulbau5uTZjibKjB6qu3vq26XDFUzu79U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=jQsjGbkF; arc=none smtp.client-ip=209.85.128.202 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="jQsjGbkF" Received: by mail-yw1-f202.google.com with SMTP id 00721157ae682-6ea863ecfe9so55459077b3.3 for ; Fri, 08 Nov 2024 15:46:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1731109600; x=1731714400; darn=vger.kernel.org; h=to:from:subject:references:mime-version:message-id:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=w0ToQ23Vppji1Mg1bHWhJCZZXvwmxBw9hPYnixwWKMI=; b=jQsjGbkFcch+9QAJAt9i64BO8tV0AzGxsMYTMg6rg1DrsE+hXduuKMBdnllpAVgc8L x0j+lHmHmo+yN9807Ecxc5Q0gOzBwjLsLOUi6mEHF2V+sGWyey4Np/9ajrXboIxOElFR JHJiFzykzJypTS/WeBXAiPmnV0d858x7nmP9JCEAYpTXwC7TdPqyY0HqS3FHsnrqtSKl Dqb1zK2LocZuPFQMROsTDumU7471cw78NPtbhIF7hlg2/CttLDvP+NFR+82iqrLtY3hX G2dMlHhBaiCP2vbdQu9PiNuIwHxOvmP4YhuzEjmnpkZjMJnMr3Ekaa9qaScJkFzSlhqO o0ig== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731109600; x=1731714400; h=to:from:subject:references:mime-version:message-id:in-reply-to:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=w0ToQ23Vppji1Mg1bHWhJCZZXvwmxBw9hPYnixwWKMI=; b=Dvap9uhtXL+c/ir95mgk1GRf41x2Tuxb/d19xpydDlS8hgC8cUWQpJd59ijD/1MMKD Aahit8Z+r9UwUK4D3n2q83LA6PadLlnsWKG/nhNdKEru77POoNPBX8deabT6xUonjODN LpBQzDzI2jLCqk0rLQWONd8ULWXcmqN/5sy38xUu1oc+hx7n17ddHJaMP/xRMl1DCQ2Q oNZzT1dg2JKnCwlcgPbZQVN+qYSWnJ5PWV1myEt3GYXraTvIw4kEphBadcuNm+bay1Bg q38RFM/MfuEx956hPXusoYQeT39iKdsyQD13S2A45ZZEqqifVgfIZkD7OAowr/q3yvuX Qi8w== X-Forwarded-Encrypted: i=1; AJvYcCWMIP30jNreOvU9fDFaW1dlIQW548lsMvavAFjxmdt1HZ2XkbErQhY0StCBv7Exz1N/y0sYwQiZ2YTxZK9SvafA@vger.kernel.org X-Gm-Message-State: AOJu0YyQIEKzYzj9sYqMFvhn2j6KBVT4DnMt9YfDiDkwpD2DKDBtZhcl WwUatK7KCKlb+Y3Jw70xCPJm2vEkHgIaZuJiesyG7tHU6I5egsz5YQ2CRNDJYPdedXQl8wx+5QP V4QVpgw== X-Google-Smtp-Source: AGHT+IEJnGD6fjMTvQRjkDpnDqY+9zvc1Y++kQcYFLcdsCZAdV7NT1mihfX2Kbcd4SGfD8gBTDktP9GrSlRZ X-Received: from irogers.svl.corp.google.com ([2620:15c:2c5:11:6fd2:1e36:6d8c:7c49]) (user=irogers job=sendgmr) by 2002:a5b:acd:0:b0:e30:d561:dad4 with SMTP id 3f1490d57ef6-e337f8417bemr9668276.2.1731109599715; Fri, 08 Nov 2024 15:46:39 -0800 (PST) Date: Fri, 8 Nov 2024 15:45:58 -0800 In-Reply-To: <20241108234606.429459-1-irogers@google.com> Message-Id: <20241108234606.429459-14-irogers@google.com> Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20241108234606.429459-1-irogers@google.com> X-Mailer: git-send-email 2.47.0.277.g8800431eea-goog Subject: [PATCH v4 13/20] perf dwarf-regs: Move powerpc dwarf-regs out of arch 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 Content-Type: text/plain; charset="UTF-8" Move arch/powerpc/util/dwarf-regs.c to util/dwarf-regs-powerpc.c and compile in unconditionally. get_arch_regstr is redundant when EM_NONE is treated as EM_HOST so remove and update dwarf-regs.c conditions. Make get_powerpc_regs unconditionally available whwn libdw is. Reviewed-by: Masami Hiramatsu (Google) Signed-off-by: Ian Rogers --- tools/perf/arch/powerpc/util/Build | 1 - tools/perf/arch/powerpc/util/dwarf-regs.c | 141 ---------------------- tools/perf/util/Build | 1 + tools/perf/util/dwarf-regs-powerpc.c | 61 ++++++++++ tools/perf/util/dwarf-regs.c | 6 +- tools/perf/util/include/dwarf-regs.h | 9 +- 6 files changed, 70 insertions(+), 149 deletions(-) delete mode 100644 tools/perf/arch/powerpc/util/dwarf-regs.c create mode 100644 tools/perf/util/dwarf-regs-powerpc.c diff --git a/tools/perf/arch/powerpc/util/Build b/tools/perf/arch/powerpc/util/Build index 3d979480a188..ed82715080f9 100644 --- a/tools/perf/arch/powerpc/util/Build +++ b/tools/perf/arch/powerpc/util/Build @@ -7,7 +7,6 @@ perf-util-y += sym-handling.o perf-util-y += evsel.o perf-util-y += event.o -perf-util-$(CONFIG_LIBDW) += dwarf-regs.o perf-util-$(CONFIG_LIBDW) += skip-callchain-idx.o perf-util-$(CONFIG_LIBUNWIND) += unwind-libunwind.o diff --git a/tools/perf/arch/powerpc/util/dwarf-regs.c b/tools/perf/arch/powerpc/util/dwarf-regs.c deleted file mode 100644 index 23846c59a522..000000000000 --- a/tools/perf/arch/powerpc/util/dwarf-regs.c +++ /dev/null @@ -1,141 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Mapping of DWARF debug register numbers into register names. - * - * Copyright (C) 2010 Ian Munsie, IBM Corporation. - */ - -#include -#include -#include -#include -#include -#include - -struct regs_dwarfnum { - const char *name; - unsigned int dwarfnum; -}; - -#define REG_DWARFNUM_NAME(r, num) \ - {.name = __stringify(%)__stringify(r), .dwarfnum = num} -#define GPR_DWARFNUM_NAME(num) \ - {.name = __stringify(%gpr##num), .dwarfnum = num} -#define REG_DWARFNUM_END {.name = NULL, .dwarfnum = 0} - -/* - * Reference: - * http://refspecs.linuxfoundation.org/ELF/ppc64/PPC-elf64abi-1.9.html - */ -static const struct regs_dwarfnum regdwarfnum_table[] = { - GPR_DWARFNUM_NAME(0), - GPR_DWARFNUM_NAME(1), - GPR_DWARFNUM_NAME(2), - GPR_DWARFNUM_NAME(3), - GPR_DWARFNUM_NAME(4), - GPR_DWARFNUM_NAME(5), - GPR_DWARFNUM_NAME(6), - GPR_DWARFNUM_NAME(7), - GPR_DWARFNUM_NAME(8), - GPR_DWARFNUM_NAME(9), - GPR_DWARFNUM_NAME(10), - GPR_DWARFNUM_NAME(11), - GPR_DWARFNUM_NAME(12), - GPR_DWARFNUM_NAME(13), - GPR_DWARFNUM_NAME(14), - GPR_DWARFNUM_NAME(15), - GPR_DWARFNUM_NAME(16), - GPR_DWARFNUM_NAME(17), - GPR_DWARFNUM_NAME(18), - GPR_DWARFNUM_NAME(19), - GPR_DWARFNUM_NAME(20), - GPR_DWARFNUM_NAME(21), - GPR_DWARFNUM_NAME(22), - GPR_DWARFNUM_NAME(23), - GPR_DWARFNUM_NAME(24), - GPR_DWARFNUM_NAME(25), - GPR_DWARFNUM_NAME(26), - GPR_DWARFNUM_NAME(27), - GPR_DWARFNUM_NAME(28), - GPR_DWARFNUM_NAME(29), - GPR_DWARFNUM_NAME(30), - GPR_DWARFNUM_NAME(31), - REG_DWARFNUM_NAME(msr, 66), - REG_DWARFNUM_NAME(ctr, 109), - REG_DWARFNUM_NAME(link, 108), - REG_DWARFNUM_NAME(xer, 101), - REG_DWARFNUM_NAME(dar, 119), - REG_DWARFNUM_NAME(dsisr, 118), - REG_DWARFNUM_END, -}; - -/** - * get_arch_regstr() - lookup register name from it's DWARF register number - * @n: the DWARF register number - * - * get_arch_regstr() returns the name of the register in struct - * regdwarfnum_table from it's DWARF register number. If the register is not - * found in the table, this returns NULL; - */ -const char *get_arch_regstr(unsigned int n) -{ - const struct regs_dwarfnum *roff; - - for (roff = regdwarfnum_table; roff->name != NULL; roff++) - if (roff->dwarfnum == n) - return roff->name; - return NULL; -} - -#define PPC_OP(op) (((op) >> 26) & 0x3F) -#define PPC_RA(a) (((a) >> 16) & 0x1f) -#define PPC_RT(t) (((t) >> 21) & 0x1f) -#define PPC_RB(b) (((b) >> 11) & 0x1f) -#define PPC_D(D) ((D) & 0xfffe) -#define PPC_DS(DS) ((DS) & 0xfffc) -#define OP_LD 58 -#define OP_STD 62 - -static int get_source_reg(u32 raw_insn) -{ - return PPC_RA(raw_insn); -} - -static int get_target_reg(u32 raw_insn) -{ - return PPC_RT(raw_insn); -} - -static int get_offset_opcode(u32 raw_insn) -{ - int opcode = PPC_OP(raw_insn); - - /* DS- form */ - if ((opcode == OP_LD) || (opcode == OP_STD)) - return PPC_DS(raw_insn); - else - return PPC_D(raw_insn); -} - -/* - * Fills the required fields for op_loc depending on if it - * is a source or target. - * D form: ins RT,D(RA) -> src_reg1 = RA, offset = D, dst_reg1 = RT - * DS form: ins RT,DS(RA) -> src_reg1 = RA, offset = DS, dst_reg1 = RT - * X form: ins RT,RA,RB -> src_reg1 = RA, src_reg2 = RB, dst_reg1 = RT - */ -void get_powerpc_regs(u32 raw_insn, int is_source, - struct annotated_op_loc *op_loc) -{ - if (is_source) - op_loc->reg1 = get_source_reg(raw_insn); - else - op_loc->reg1 = get_target_reg(raw_insn); - - if (op_loc->multi_regs) - op_loc->reg2 = PPC_RB(raw_insn); - - /* TODO: Implement offset handling for X Form */ - if ((op_loc->mem_ref) && (PPC_OP(raw_insn) != 31)) - op_loc->offset = get_offset_opcode(raw_insn); -} diff --git a/tools/perf/util/Build b/tools/perf/util/Build index 99ae4e2802b8..eeab8684ddcc 100644 --- a/tools/perf/util/Build +++ b/tools/perf/util/Build @@ -204,6 +204,7 @@ perf-util-$(CONFIG_LIBDW) += probe-finder.o perf-util-$(CONFIG_LIBDW) += dwarf-aux.o perf-util-$(CONFIG_LIBDW) += dwarf-regs.o perf-util-$(CONFIG_LIBDW) += dwarf-regs-csky.o +perf-util-$(CONFIG_LIBDW) += dwarf-regs-powerpc.o perf-util-$(CONFIG_LIBDW) += dwarf-regs-x86.o perf-util-$(CONFIG_LIBDW) += debuginfo.o perf-util-$(CONFIG_LIBDW) += annotate-data.o diff --git a/tools/perf/util/dwarf-regs-powerpc.c b/tools/perf/util/dwarf-regs-powerpc.c new file mode 100644 index 000000000000..caf77a234c78 --- /dev/null +++ b/tools/perf/util/dwarf-regs-powerpc.c @@ -0,0 +1,61 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Mapping of DWARF debug register numbers into register names. + * + * Copyright (C) 2010 Ian Munsie, IBM Corporation. + */ + +#include + +#define PPC_OP(op) (((op) >> 26) & 0x3F) +#define PPC_RA(a) (((a) >> 16) & 0x1f) +#define PPC_RT(t) (((t) >> 21) & 0x1f) +#define PPC_RB(b) (((b) >> 11) & 0x1f) +#define PPC_D(D) ((D) & 0xfffe) +#define PPC_DS(DS) ((DS) & 0xfffc) +#define OP_LD 58 +#define OP_STD 62 + +static int get_source_reg(u32 raw_insn) +{ + return PPC_RA(raw_insn); +} + +static int get_target_reg(u32 raw_insn) +{ + return PPC_RT(raw_insn); +} + +static int get_offset_opcode(u32 raw_insn) +{ + int opcode = PPC_OP(raw_insn); + + /* DS- form */ + if ((opcode == OP_LD) || (opcode == OP_STD)) + return PPC_DS(raw_insn); + else + return PPC_D(raw_insn); +} + +/* + * Fills the required fields for op_loc depending on if it + * is a source or target. + * D form: ins RT,D(RA) -> src_reg1 = RA, offset = D, dst_reg1 = RT + * DS form: ins RT,DS(RA) -> src_reg1 = RA, offset = DS, dst_reg1 = RT + * X form: ins RT,RA,RB -> src_reg1 = RA, src_reg2 = RB, dst_reg1 = RT + */ +void get_powerpc_regs(u32 raw_insn, int is_source, + struct annotated_op_loc *op_loc) +{ + if (is_source) + op_loc->reg1 = get_source_reg(raw_insn); + else + op_loc->reg1 = get_target_reg(raw_insn); + + if (op_loc->multi_regs) + op_loc->reg2 = PPC_RB(raw_insn); + + /* TODO: Implement offset handling for X Form */ + if ((op_loc->mem_ref) && (PPC_OP(raw_insn) != 31)) + op_loc->offset = get_offset_opcode(raw_insn); +} diff --git a/tools/perf/util/dwarf-regs.c b/tools/perf/util/dwarf-regs.c index d536964df43c..3d98c2bf6035 100644 --- a/tools/perf/util/dwarf-regs.c +++ b/tools/perf/util/dwarf-regs.c @@ -32,7 +32,8 @@ const char *get_dwarf_regstr(unsigned int n, unsigned int machine, unsigned int flags) { #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_CSKY || EM_HOST == EM_LOONGARCH || EM_HOST == EM_MIPS || EM_HOST == EM_PPC \ + || EM_HOST == EM_PPC64 if (machine == EM_NONE) { /* Generic arch - use host arch */ machine = EM_HOST; @@ -40,7 +41,8 @@ const char *get_dwarf_regstr(unsigned int n, unsigned int machine, unsigned int #endif 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_CSKY && EM_HOST != EM_LOONGARCH && EM_HOST != EM_MIPS && EM_HOST != EM_PPC \ + && EM_HOST != EM_PPC64 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 55f21d8082a2..e47c4697da36 100644 --- a/tools/perf/util/include/dwarf-regs.h +++ b/tools/perf/util/include/dwarf-regs.h @@ -90,7 +90,8 @@ #ifdef HAVE_LIBDW_SUPPORT #if !defined(__x86_64__) && !defined(__i386__) && !defined(__aarch64__) && !defined(__arm__) \ - && !defined(__loongarch__) && !defined(__mips__) + && !defined(__loongarch__) && !defined(__mips__) && !defined(__powerpc__) \ + && !defined(__powerpc64__) const char *get_arch_regstr(unsigned int n); #endif @@ -117,6 +118,8 @@ int get_arch_regnum(const char *name); */ int get_dwarf_regnum(const char *name, unsigned int machine, unsigned int flags); +void get_powerpc_regs(u32 raw_insn, int is_source, struct annotated_op_loc *op_loc); + #else /* HAVE_LIBDW_SUPPORT */ static inline int get_dwarf_regnum(const char *name __maybe_unused, @@ -125,16 +128,12 @@ static inline int get_dwarf_regnum(const char *name __maybe_unused, { return -1; } -#endif -#if !defined(__powerpc__) || !defined(HAVE_LIBDW_SUPPORT) static inline void get_powerpc_regs(u32 raw_insn __maybe_unused, int is_source __maybe_unused, struct annotated_op_loc *op_loc __maybe_unused) { return; } -#else -void get_powerpc_regs(u32 raw_insn, int is_source, struct annotated_op_loc *op_loc); #endif #endif -- 2.47.0.277.g8800431eea-goog