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Wed, 07 Jun 2023 08:22:00 -0400 Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Jun 2023 05:21:57 -0700 Received: from wufei-optiplex-7090.sh.intel.com ([10.238.200.247]) by orsmga006.jf.intel.com with ESMTP; 07 Jun 2023 05:21:55 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1686140518; x=1717676518; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=LtkaMVeUbijqlyekLbrz4vTEno4QkWFSacCof7mrn8U=; b=H02rchx99afMnrcfALhPSfAle/Z3SwJEby5xdIplp7wZ3J2YNXu4OQDQ eUv1g7PAs+k19btjVY/8BQNAw2EI3qTSebJnHPX9pDrzjR+Ttss0Pmqqh kt0v1Z7+ptkjSTlkDn2wvehjPMw+Ac5xU4RmbMvTB7ZrNNaSzryUNJJN1 PgwG+FRGu2ygQAF+HyBfLRmW4hJjoClROOgVJH52RAvRR3mQcRnto6jUM lHfJaefB7/evfbmxL87a6a5ZGwYxepmBm747UZSGTcLT3F68Qup6ZfaIW sy0eX4TlP58y+YeQ7HYH30+HBoPDLAR9JW4AptkzRMJyRm5eN31yiDyvB g==; X-IronPort-AV: E=McAfee;i="6600,9927,10733"; a="420527960" X-IronPort-AV: E=Sophos;i="6.00,224,1681196400"; d="scan'208";a="420527960" X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10733"; a="686970065" X-IronPort-AV: E=Sophos;i="6.00,224,1681196400"; d="scan'208";a="686970065" From: Fei Wu To: richard.henderson@linaro.org, alex.bennee@linaro.org, qemu-devel@nongnu.org Cc: Fei Wu , "Vanderson M . do Rosario" , Paolo Bonzini Subject: [PATCH v15 08/10] debug: add -d tb_stats to control TBStatistics Date: Wed, 7 Jun 2023 20:24:09 +0800 Message-Id: <20230607122411.3394702-9-fei2.wu@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230607122411.3394702-1-fei2.wu@intel.com> References: <20230607122411.3394702-1-fei2.wu@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=134.134.136.31; envelope-from=fei2.wu@intel.com; helo=mga06.intel.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1686140631937100003 Capture TBS at startup instead of an explicit 'tb_stats start' command. Signed-off-by: Vanderson M. do Rosario Signed-off-by: Alex Benn=C3=A9e Signed-off-by: Fei Wu --- include/exec/tb-stats-flags.h | 1 + include/qemu/log.h | 1 + stubs/meson.build | 1 + stubs/tb-stats.c | 32 ++++++++++++++++++++++++++++++++ util/log.c | 18 ++++++++++++++++++ 5 files changed, 53 insertions(+) create mode 100644 stubs/tb-stats.c diff --git a/include/exec/tb-stats-flags.h b/include/exec/tb-stats-flags.h index d8b844be99..936bd35707 100644 --- a/include/exec/tb-stats-flags.h +++ b/include/exec/tb-stats-flags.h @@ -14,6 +14,7 @@ #define TB_NONE_STATS (0) /* no stats */ #define TB_EXEC_STATS (1 << 0) #define TB_JIT_STATS (1 << 1) +#define TB_ALL_STATS (TB_EXEC_STATS | TB_JIT_STATS) =20 /* TBStatistic collection controls */ void enable_collect_tb_stats(void); diff --git a/include/qemu/log.h b/include/qemu/log.h index c5643d8dd5..6f3b8091cd 100644 --- a/include/qemu/log.h +++ b/include/qemu/log.h @@ -35,6 +35,7 @@ bool qemu_log_separate(void); /* LOG_STRACE is used for user-mode strace logging. */ #define LOG_STRACE (1 << 19) #define LOG_PER_THREAD (1 << 20) +#define CPU_LOG_TB_STATS (1 << 21) =20 /* Lock/unlock output. */ =20 diff --git a/stubs/meson.build b/stubs/meson.build index a56645e2f7..e926649d40 100644 --- a/stubs/meson.build +++ b/stubs/meson.build @@ -65,3 +65,4 @@ else endif stub_ss.add(files('semihost-all.c')) stub_ss.add(when: 'CONFIG_VFIO_USER_SERVER', if_false: files('vfio-user-ob= j.c')) +stub_ss.add(files('tb-stats.c')) diff --git a/stubs/tb-stats.c b/stubs/tb-stats.c new file mode 100644 index 0000000000..38ee12313e --- /dev/null +++ b/stubs/tb-stats.c @@ -0,0 +1,32 @@ +/* + * TB Stats Stubs + * + * Copyright (c) 2019 + * Written by Alex Benn=C3=A9e + * + * This code is licensed under the GNU GPL v2, or later. + */ + + +#include "qemu/osdep.h" +#include "exec/tb-stats-flags.h" + +void enable_collect_tb_stats(void) +{ + return; +} + +void disable_collect_tb_stats(void) +{ + return; +} + +bool tb_stats_collection_enabled(void) +{ + return false; +} + +void set_tbstats_flag(uint32_t flag) +{ + return; +} diff --git a/util/log.c b/util/log.c index 53b4f6c58e..419f02c380 100644 --- a/util/log.c +++ b/util/log.c @@ -27,6 +27,7 @@ #include "qemu/thread.h" #include "qemu/lockable.h" #include "qemu/rcu.h" +#include "exec/tb-stats-flags.h" #ifdef CONFIG_LINUX #include #endif @@ -495,6 +496,8 @@ const QEMULogItem qemu_log_items[] =3D { "log every user-mode syscall, its input, and its result" }, { LOG_PER_THREAD, "tid", "open a separate log file per thread; filename must contain '%d'" }, + { CPU_LOG_TB_STATS, "tb_stats_{all,jit,exec}", + "enable collection of TBs statistics at startup" }, { 0, NULL, NULL }, }; =20 @@ -516,6 +519,21 @@ int qemu_str_to_log_mask(const char *str) trace_enable_events((*tmp) + 6); mask |=3D LOG_TRACE; #endif + } else if (g_str_has_prefix(*tmp, "tb_stats_")) { + char *p =3D *tmp + 9; + uint32_t flag =3D TB_NONE_STATS; + if (g_str_has_prefix(p, "all")) { + flag =3D TB_ALL_STATS; + } else if (g_str_has_prefix(p, "jit")) { + flag =3D TB_JIT_STATS; + } else if (g_str_has_prefix(p, "exec")) { + flag =3D TB_EXEC_STATS; + } + if (flag !=3D TB_NONE_STATS) { + mask |=3D CPU_LOG_TB_STATS; + set_tbstats_flag(flag); + enable_collect_tb_stats(); + } } else { for (item =3D qemu_log_items; item->mask !=3D 0; item++) { if (g_str_equal(*tmp, item->name)) { --=20 2.25.1