From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 43BEDC48BC1 for ; Wed, 14 Feb 2024 11:40:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=aMBYFBLyjWGnco2OE0eGJOSHoy/DlrfukqDMRABQNqE=; b=VjWdolMQU6G4hj ys0X5BvQqZJus5FIBmuMH2TTugoAEq285QutOEjxho9MikbUMvltVVzqt7cs3stUvN23JL6/SBgDI /FfqyXdt+26N5tIb8ANv1w1NynPSG9hKPD/XbFqrJpZRPDJOB1chDDgqZUQx8Qnyg29jdGMzPkO52 zwkk463pSyX0hTM/bPwKigqY81iRNQBBLe5HTJ2RlTdBt/XjyVe86yz+61LKmbpsCHeb3phEoD7ci I4L7aJjA6BYoKVvwxNVZPa9JeIJnkCBIdGOv6hGHhRtauLTh8NnpRK/DZ8anVXQtphH9oFk1c1n7l R9d4OSULnzV9yqZ4lKzw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1raDd0-0000000ChtE-04BR; Wed, 14 Feb 2024 11:40:38 +0000 Received: from out-174.mta0.migadu.com ([91.218.175.174]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1raDcx-0000000Chra-0uio for linux-riscv@lists.infradead.org; Wed, 14 Feb 2024 11:40:36 +0000 X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1707910833; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=6q0ZJ+/QgkBKiu+7vLI7Vww0Q4/7AWcn0562kHI25UM=; b=k16JtjQ0Q0Cfr3s5i9zroS0QYD++HZIYliM0Vf8VwADRosR3o9l8gytGbENg/ogRvDx20Y 2ZC7z2tOdU9mPIG6hl0ru8vOVRqy2xwLV+u7bGQeT9SXDGrjpnkCHUQ5q2+oS+JLH7KqYP U7JdUdz/pZUY23oE++pJXZyUFNzF9+0= From: Leo Yan To: Arnaldo Carvalho de Melo , Namhyung Kim , Jiri Olsa , Ian Rogers , Adrian Hunter , Alexander Shishkin , John Garry , Will Deacon , James Clark , Mike Leach , Guo Ren , Paul Walmsley , Palmer Dabbelt , Albert Ou , Huacai Chen , Ming Wang , Kan Liang , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, linux-csky@vger.kernel.org, linux-riscv@lists.infradead.org Cc: Leo Yan Subject: [PATCH v1 3/4] perf parse-regs: Introduce a weak function arch__sample_reg_masks() Date: Wed, 14 Feb 2024 19:39:46 +0800 Message-Id: <20240214113947.240957-4-leo.yan@linux.dev> In-Reply-To: <20240214113947.240957-1-leo.yan@linux.dev> References: <20240214113947.240957-1-leo.yan@linux.dev> MIME-Version: 1.0 X-Migadu-Flow: FLOW_OUT X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240214_034035_582111_7BA5AB50 X-CRM114-Status: GOOD ( 13.70 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Every architecture can provide a register list for sampling. If an architecture doesn't support register sampling, it won't define the data structure 'sample_reg_masks'. Consequently, any code using this structure must be protected by the macro 'HAVE_PERF_REGS_SUPPORT'. This patch defines a weak function, arch__sample_reg_masks(), which will be replaced by an architecture-defined function for returning the architecture's register list. With this refactoring, the function always exists, the condition checking for 'HAVE_PERF_REGS_SUPPORT' is not needed anymore, so remove it. Signed-off-by: Leo Yan --- tools/perf/arch/arm/util/perf_regs.c | 7 ++++++- tools/perf/arch/arm64/util/machine.c | 2 ++ tools/perf/arch/arm64/util/perf_regs.c | 7 ++++++- tools/perf/arch/csky/util/perf_regs.c | 7 ++++++- tools/perf/arch/loongarch/util/perf_regs.c | 7 ++++++- tools/perf/arch/mips/util/perf_regs.c | 7 ++++++- tools/perf/arch/powerpc/util/perf_regs.c | 7 ++++++- tools/perf/arch/riscv/util/perf_regs.c | 7 ++++++- tools/perf/arch/s390/util/perf_regs.c | 7 ++++++- tools/perf/arch/x86/util/perf_regs.c | 7 ++++++- tools/perf/util/parse-regs-options.c | 8 ++------ tools/perf/util/perf_regs.c | 9 +++++++++ tools/perf/util/perf_regs.h | 3 +-- 13 files changed, 68 insertions(+), 17 deletions(-) diff --git a/tools/perf/arch/arm/util/perf_regs.c b/tools/perf/arch/arm/util/perf_regs.c index 2c56e8b56ddf..f94a0210c7b7 100644 --- a/tools/perf/arch/arm/util/perf_regs.c +++ b/tools/perf/arch/arm/util/perf_regs.c @@ -2,7 +2,7 @@ #include "perf_regs.h" #include "../../../util/perf_regs.h" -const struct sample_reg sample_reg_masks[] = { +static const struct sample_reg sample_reg_masks[] = { SMPL_REG_END }; @@ -15,3 +15,8 @@ uint64_t arch__user_reg_mask(void) { return PERF_REGS_MASK; } + +const struct sample_reg *arch__sample_reg_masks(void) +{ + return sample_reg_masks; +} diff --git a/tools/perf/arch/arm64/util/machine.c b/tools/perf/arch/arm64/util/machine.c index ba1144366e85..aab1cc2bc283 100644 --- a/tools/perf/arch/arm64/util/machine.c +++ b/tools/perf/arch/arm64/util/machine.c @@ -12,5 +12,7 @@ void arch__add_leaf_frame_record_opts(struct record_opts *opts) { + const struct sample_reg *sample_reg_masks = arch__sample_reg_masks(); + opts->sample_user_regs |= sample_reg_masks[PERF_REG_ARM64_LR].mask; } diff --git a/tools/perf/arch/arm64/util/perf_regs.c b/tools/perf/arch/arm64/util/perf_regs.c index 1b79d8eab22f..09308665e28a 100644 --- a/tools/perf/arch/arm64/util/perf_regs.c +++ b/tools/perf/arch/arm64/util/perf_regs.c @@ -16,7 +16,7 @@ #define HWCAP_SVE (1 << 22) #endif -const struct sample_reg sample_reg_masks[] = { +static const struct sample_reg sample_reg_masks[] = { SMPL_REG(x0, PERF_REG_ARM64_X0), SMPL_REG(x1, PERF_REG_ARM64_X1), SMPL_REG(x2, PERF_REG_ARM64_X2), @@ -175,3 +175,8 @@ uint64_t arch__user_reg_mask(void) } return PERF_REGS_MASK; } + +const struct sample_reg *arch__sample_reg_masks(void) +{ + return sample_reg_masks; +} diff --git a/tools/perf/arch/csky/util/perf_regs.c b/tools/perf/arch/csky/util/perf_regs.c index c0877c264d49..6b1665f41180 100644 --- a/tools/perf/arch/csky/util/perf_regs.c +++ b/tools/perf/arch/csky/util/perf_regs.c @@ -2,7 +2,7 @@ #include "perf_regs.h" #include "../../util/perf_regs.h" -const struct sample_reg sample_reg_masks[] = { +static const struct sample_reg sample_reg_masks[] = { SMPL_REG_END }; @@ -15,3 +15,8 @@ uint64_t arch__user_reg_mask(void) { return PERF_REGS_MASK; } + +const struct sample_reg *arch__sample_reg_masks(void) +{ + return sample_reg_masks; +} diff --git a/tools/perf/arch/loongarch/util/perf_regs.c b/tools/perf/arch/loongarch/util/perf_regs.c index 2c56e8b56ddf..f94a0210c7b7 100644 --- a/tools/perf/arch/loongarch/util/perf_regs.c +++ b/tools/perf/arch/loongarch/util/perf_regs.c @@ -2,7 +2,7 @@ #include "perf_regs.h" #include "../../../util/perf_regs.h" -const struct sample_reg sample_reg_masks[] = { +static const struct sample_reg sample_reg_masks[] = { SMPL_REG_END }; @@ -15,3 +15,8 @@ uint64_t arch__user_reg_mask(void) { return PERF_REGS_MASK; } + +const struct sample_reg *arch__sample_reg_masks(void) +{ + return sample_reg_masks; +} diff --git a/tools/perf/arch/mips/util/perf_regs.c b/tools/perf/arch/mips/util/perf_regs.c index c0877c264d49..6b1665f41180 100644 --- a/tools/perf/arch/mips/util/perf_regs.c +++ b/tools/perf/arch/mips/util/perf_regs.c @@ -2,7 +2,7 @@ #include "perf_regs.h" #include "../../util/perf_regs.h" -const struct sample_reg sample_reg_masks[] = { +static const struct sample_reg sample_reg_masks[] = { SMPL_REG_END }; @@ -15,3 +15,8 @@ uint64_t arch__user_reg_mask(void) { return PERF_REGS_MASK; } + +const struct sample_reg *arch__sample_reg_masks(void) +{ + return sample_reg_masks; +} diff --git a/tools/perf/arch/powerpc/util/perf_regs.c b/tools/perf/arch/powerpc/util/perf_regs.c index b38aa056eea0..e8e6e6fc6f17 100644 --- a/tools/perf/arch/powerpc/util/perf_regs.c +++ b/tools/perf/arch/powerpc/util/perf_regs.c @@ -17,7 +17,7 @@ #define PVR_POWER9 0x004E #define PVR_POWER10 0x0080 -const struct sample_reg sample_reg_masks[] = { +static const struct sample_reg sample_reg_masks[] = { SMPL_REG(r0, PERF_REG_POWERPC_R0), SMPL_REG(r1, PERF_REG_POWERPC_R1), SMPL_REG(r2, PERF_REG_POWERPC_R2), @@ -232,3 +232,8 @@ uint64_t arch__user_reg_mask(void) { return PERF_REGS_MASK; } + +const struct sample_reg *arch__sample_reg_masks(void) +{ + return sample_reg_masks; +} diff --git a/tools/perf/arch/riscv/util/perf_regs.c b/tools/perf/arch/riscv/util/perf_regs.c index c0877c264d49..6b1665f41180 100644 --- a/tools/perf/arch/riscv/util/perf_regs.c +++ b/tools/perf/arch/riscv/util/perf_regs.c @@ -2,7 +2,7 @@ #include "perf_regs.h" #include "../../util/perf_regs.h" -const struct sample_reg sample_reg_masks[] = { +static const struct sample_reg sample_reg_masks[] = { SMPL_REG_END }; @@ -15,3 +15,8 @@ uint64_t arch__user_reg_mask(void) { return PERF_REGS_MASK; } + +const struct sample_reg *arch__sample_reg_masks(void) +{ + return sample_reg_masks; +} diff --git a/tools/perf/arch/s390/util/perf_regs.c b/tools/perf/arch/s390/util/perf_regs.c index c0877c264d49..6b1665f41180 100644 --- a/tools/perf/arch/s390/util/perf_regs.c +++ b/tools/perf/arch/s390/util/perf_regs.c @@ -2,7 +2,7 @@ #include "perf_regs.h" #include "../../util/perf_regs.h" -const struct sample_reg sample_reg_masks[] = { +static const struct sample_reg sample_reg_masks[] = { SMPL_REG_END }; @@ -15,3 +15,8 @@ uint64_t arch__user_reg_mask(void) { return PERF_REGS_MASK; } + +const struct sample_reg *arch__sample_reg_masks(void) +{ + return sample_reg_masks; +} diff --git a/tools/perf/arch/x86/util/perf_regs.c b/tools/perf/arch/x86/util/perf_regs.c index b813502a2727..12fd93f04802 100644 --- a/tools/perf/arch/x86/util/perf_regs.c +++ b/tools/perf/arch/x86/util/perf_regs.c @@ -13,7 +13,7 @@ #include "../../../util/pmu.h" #include "../../../util/pmus.h" -const struct sample_reg sample_reg_masks[] = { +static const struct sample_reg sample_reg_masks[] = { SMPL_REG(AX, PERF_REG_X86_AX), SMPL_REG(BX, PERF_REG_X86_BX), SMPL_REG(CX, PERF_REG_X86_CX), @@ -276,6 +276,11 @@ int arch_sdt_arg_parse_op(char *old_op, char **new_op) return SDT_ARG_VALID; } +const struct sample_reg *arch__sample_reg_masks(void) +{ + return sample_reg_masks; +} + uint64_t arch__intr_reg_mask(void) { struct perf_event_attr attr = { diff --git a/tools/perf/util/parse-regs-options.c b/tools/perf/util/parse-regs-options.c index a4a100425b3a..cda1c620968e 100644 --- a/tools/perf/util/parse-regs-options.c +++ b/tools/perf/util/parse-regs-options.c @@ -46,22 +46,18 @@ __parse_regs(const struct option *opt, const char *str, int unset, bool intr) if (!strcmp(s, "?")) { fprintf(stderr, "available registers: "); -#ifdef HAVE_PERF_REGS_SUPPORT - for (r = sample_reg_masks; r->name; r++) { + for (r = arch__sample_reg_masks(); r->name; r++) { if (r->mask & mask) fprintf(stderr, "%s ", r->name); } -#endif fputc('\n', stderr); /* just printing available regs */ goto error; } -#ifdef HAVE_PERF_REGS_SUPPORT - for (r = sample_reg_masks; r->name; r++) { + for (r = arch__sample_reg_masks(); r->name; r++) { if ((r->mask & mask) && !strcasecmp(s, r->name)) break; } -#endif if (!r || !r->name) { ui__warning("Unknown register \"%s\", check man page or run \"perf record %s?\"\n", s, intr ? "-I" : "--user-regs="); diff --git a/tools/perf/util/perf_regs.c b/tools/perf/util/perf_regs.c index 64724eb58dd5..44b90bbf2d07 100644 --- a/tools/perf/util/perf_regs.c +++ b/tools/perf/util/perf_regs.c @@ -21,6 +21,15 @@ uint64_t __weak arch__user_reg_mask(void) return 0; } +static const struct sample_reg sample_reg_masks[] = { + SMPL_REG_END +}; + +const struct sample_reg * __weak arch__sample_reg_masks(void) +{ + return sample_reg_masks; +} + const char *perf_reg_name(int id, const char *arch) { const char *reg_name = NULL; diff --git a/tools/perf/util/perf_regs.h b/tools/perf/util/perf_regs.h index 7fd0c7b4cec1..f2d0736d65cc 100644 --- a/tools/perf/util/perf_regs.h +++ b/tools/perf/util/perf_regs.h @@ -26,8 +26,7 @@ enum { int arch_sdt_arg_parse_op(char *old_op, char **new_op); uint64_t arch__intr_reg_mask(void); uint64_t arch__user_reg_mask(void); - -extern const struct sample_reg sample_reg_masks[]; +const struct sample_reg *arch__sample_reg_masks(void); const char *perf_reg_name(int id, const char *arch); int perf_reg_value(u64 *valp, struct regs_dump *regs, int id); -- 2.34.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv