From patchwork Thu Nov 7 14:26:12 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robert Foley X-Patchwork-Id: 11233037 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 74B59139A for ; Thu, 7 Nov 2019 14:28:20 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3B5E62187F for ; Thu, 7 Nov 2019 14:28:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="ovpSp5Pk" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3B5E62187F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:43326 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iSiln-000588-3S for patchwork-qemu-devel@patchwork.kernel.org; Thu, 07 Nov 2019 09:28:19 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:46974) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iSikD-0003MP-Tn for qemu-devel@nongnu.org; Thu, 07 Nov 2019 09:26:43 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iSikC-0006oo-17 for qemu-devel@nongnu.org; Thu, 07 Nov 2019 09:26:41 -0500 Received: from mail-pl1-x641.google.com ([2607:f8b0:4864:20::641]:35304) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1iSikB-0006oB-PC for qemu-devel@nongnu.org; Thu, 07 Nov 2019 09:26:39 -0500 Received: by mail-pl1-x641.google.com with SMTP id s10so1592272plp.2 for ; Thu, 07 Nov 2019 06:26:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=lIi54vr/HziQ7SiW+njRL+MHz75T7cGRSD/KXgMu79Q=; b=ovpSp5Pkv1JqUJsIzwnUIWpIQePLGWfHqdt9lzF630v/aGpHrwQAvBPk/mGvJtaPvq gcsVzhDQ1JGqTzW8ZQll4rpU5iGwlxroWXA7Pu0Ft+TZOc3kb1kyi4c3kUO8vCqyQi8Y B4lXXtT+4ta4tPrgN8d4n678qJQ0/lPY03V1xdM84caKD54zEIxnnXkfE0uDKRQJUG2P PSWiNVLFLg2xP4MZITpPY/IiK6z7UNnC8fcEV2lzwEi5SFWARj/ImGJYZgFF377VJK7c pVSddCyrxf0cCNTaDTChjxGUA2rwoBHS1Db+4MyB5cUAG1/4Tiz6j8dL3rfpaeYRP1bY pSRw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=lIi54vr/HziQ7SiW+njRL+MHz75T7cGRSD/KXgMu79Q=; b=DwzArokrygbWnMIT7MoGqCEh4xYlRh7BmJ2J4qoIBXIP3LHlzAhbN+jkqExhbJ1AcT sQ1jjHuQCy6qssCWcD/iqKiSVdvTdGPH8Cpf0ar9kTmj3mOQwWoqmVoOajEL8P+G09c9 hXJ4y2WkdcCRgJMTLmlcdMVqmBDIbtsPbCvdnh9fJA0J6Skc98j8xLq5PG77QSqgGkxE VJIrYe7RHhtFSfYOSuGUG2QP1RcggTvZzgpoApiibW3zTeeJ5ScG1oGFREhpO06neHpT nNrNPzZxJzici9nHtA62VvdAcSrzzgdgT01oBnCtSCcfDhwuqaEC0BzPxIQaV2koi6DX Fr9g== X-Gm-Message-State: APjAAAUtk4RKBJQqX2XaRSZlebOWHaEWDyWYImjXF9U6nDj0kVH0p+CG OqGK+LhBbj1iZXClvPfoC3r1pOAi5XQ= X-Google-Smtp-Source: APXvYqysgQpkl4jydo5FFHCLaQB6BzgnQTxVQVyUgSPzh6XulkvhaUlfKimjyV9VmFhWtnKVvJ1MWw== X-Received: by 2002:a17:90a:2ec3:: with SMTP id h3mr5535811pjs.131.1573136798387; Thu, 07 Nov 2019 06:26:38 -0800 (PST) Received: from Rfoley-MA01.usrd.futurewei.com ([12.111.81.71]) by smtp.gmail.com with ESMTPSA id f8sm3375502pgd.64.2019.11.07.06.26.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Nov 2019 06:26:37 -0800 (PST) From: Robert Foley To: qemu-devel@nongnu.org Subject: [PATCH 3/4] qemu_log_lock/unlock now preserves the qemu_logfile handle. Date: Thu, 7 Nov 2019 09:26:12 -0500 Message-Id: <20191107142613.2379-4-robert.foley@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191107142613.2379-1-robert.foley@linaro.org> References: <20191107142613.2379-1-robert.foley@linaro.org> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::641 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.puhov@linaro.org, alex.bennee@linaro.org, robert.foley@linaro.org Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" qemu_log_lock() now returns a handle and qemu_log_unlock() receives a handle to unlock. This allows for changing the handle during logging and ensures the lock() and unlock() are for the same file. Signed-off-by: Robert Foley --- include/qemu/log.h | 14 +++++++------- accel/tcg/cpu-exec.c | 4 ++-- accel/tcg/translate-all.c | 4 ++-- accel/tcg/translator.c | 4 ++-- exec.c | 4 ++-- hw/net/can/can_sja1000.c | 4 ++-- net/can/can_socketcan.c | 5 ++--- target/cris/translate.c | 4 ++-- target/i386/translate.c | 5 +++-- target/lm32/translate.c | 4 ++-- target/microblaze/translate.c | 4 ++-- target/nios2/translate.c | 4 ++-- target/tilegx/translate.c | 7 ++++--- target/unicore32/translate.c | 4 ++-- tcg/tcg.c | 16 ++++++++-------- 15 files changed, 44 insertions(+), 43 deletions(-) diff --git a/include/qemu/log.h b/include/qemu/log.h index 975de18e23..3d0f47a479 100644 --- a/include/qemu/log.h +++ b/include/qemu/log.h @@ -71,25 +71,25 @@ static inline bool qemu_log_separate(void) * qemu_loglevel is never set when qemu_logfile is unset. */ -static inline void qemu_log_lock(void) +static inline FILE *qemu_log_lock(void) { QemuLogFile *logfile; rcu_read_lock(); logfile = atomic_rcu_read(&qemu_logfile); if (logfile) { qemu_flockfile(logfile->fd); + return logfile->fd; } rcu_read_unlock(); + return NULL; } -static inline void qemu_log_unlock(void) +static inline void qemu_log_unlock(FILE *fd) { - QemuLogFile *logfile; - logfile = atomic_rcu_read(&qemu_logfile); - if (logfile) { - qemu_funlockfile(logfile->fd); + if (fd) { + qemu_funlockfile(fd); + rcu_read_unlock(); } - rcu_read_unlock(); } /* Logging functions: */ diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c index c01f59c743..62068d10c3 100644 --- a/accel/tcg/cpu-exec.c +++ b/accel/tcg/cpu-exec.c @@ -156,7 +156,7 @@ static inline tcg_target_ulong cpu_tb_exec(CPUState *cpu, TranslationBlock *itb) #if defined(DEBUG_DISAS) if (qemu_loglevel_mask(CPU_LOG_TB_CPU) && qemu_log_in_addr_range(itb->pc)) { - qemu_log_lock(); + FILE *logfile = qemu_log_lock(); int flags = 0; if (qemu_loglevel_mask(CPU_LOG_TB_FPU)) { flags |= CPU_DUMP_FPU; @@ -165,7 +165,7 @@ static inline tcg_target_ulong cpu_tb_exec(CPUState *cpu, TranslationBlock *itb) flags |= CPU_DUMP_CCOP; #endif log_cpu_state(cpu, flags); - qemu_log_unlock(); + qemu_log_unlock(logfile); } #endif /* DEBUG_DISAS */ diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c index 9f48da9472..bb325a2bc4 100644 --- a/accel/tcg/translate-all.c +++ b/accel/tcg/translate-all.c @@ -1804,7 +1804,7 @@ TranslationBlock *tb_gen_code(CPUState *cpu, #ifdef DEBUG_DISAS if (qemu_loglevel_mask(CPU_LOG_TB_OUT_ASM) && qemu_log_in_addr_range(tb->pc)) { - qemu_log_lock(); + FILE *logfile = qemu_log_lock(); qemu_log("OUT: [size=%d]\n", gen_code_size); if (tcg_ctx->data_gen_ptr) { size_t code_size = tcg_ctx->data_gen_ptr - tb->tc.ptr; @@ -1829,7 +1829,7 @@ TranslationBlock *tb_gen_code(CPUState *cpu, } qemu_log("\n"); qemu_log_flush(); - qemu_log_unlock(); + qemu_log_unlock(logfile); } #endif diff --git a/accel/tcg/translator.c b/accel/tcg/translator.c index f977682be7..603d17ff83 100644 --- a/accel/tcg/translator.c +++ b/accel/tcg/translator.c @@ -138,11 +138,11 @@ void translator_loop(const TranslatorOps *ops, DisasContextBase *db, #ifdef DEBUG_DISAS if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM) && qemu_log_in_addr_range(db->pc_first)) { - qemu_log_lock(); + FILE *logfile = qemu_log_lock(); qemu_log("----------------\n"); ops->disas_log(db, cpu); qemu_log("\n"); - qemu_log_unlock(); + qemu_log_unlock(logfile); } #endif } diff --git a/exec.c b/exec.c index ffdb518535..c994a00f10 100644 --- a/exec.c +++ b/exec.c @@ -1223,13 +1223,13 @@ void cpu_abort(CPUState *cpu, const char *fmt, ...) fprintf(stderr, "\n"); cpu_dump_state(cpu, stderr, CPU_DUMP_FPU | CPU_DUMP_CCOP); if (qemu_log_separate()) { - qemu_log_lock(); + FILE *logfile = qemu_log_lock(); qemu_log("qemu: fatal: "); qemu_log_vprintf(fmt, ap2); qemu_log("\n"); log_cpu_state(cpu, CPU_DUMP_FPU | CPU_DUMP_CCOP); qemu_log_flush(); - qemu_log_unlock(); + qemu_log_unlock(logfile); qemu_log_close(); } va_end(ap2); diff --git a/hw/net/can/can_sja1000.c b/hw/net/can/can_sja1000.c index 1f81341554..39c78faf9b 100644 --- a/hw/net/can/can_sja1000.c +++ b/hw/net/can/can_sja1000.c @@ -247,8 +247,8 @@ int can_sja_accept_filter(CanSJA1000State *s, static void can_display_msg(const char *prefix, const qemu_can_frame *msg) { int i; + FILE *logfile = qemu_log_lock(); - qemu_log_lock(); qemu_log("%s%03X [%01d] %s %s", prefix, msg->can_id & QEMU_CAN_EFF_MASK, @@ -261,7 +261,7 @@ static void can_display_msg(const char *prefix, const qemu_can_frame *msg) } qemu_log("\n"); qemu_log_flush(); - qemu_log_unlock(); + qemu_log_unlock(logfile); } static void buff2frame_pel(const uint8_t *buff, qemu_can_frame *frame) diff --git a/net/can/can_socketcan.c b/net/can/can_socketcan.c index 8a6ffad40c..29bfacd4f8 100644 --- a/net/can/can_socketcan.c +++ b/net/can/can_socketcan.c @@ -76,8 +76,7 @@ QEMU_BUILD_BUG_ON(offsetof(qemu_can_frame, data) static void can_host_socketcan_display_msg(struct qemu_can_frame *msg) { int i; - - qemu_log_lock(); + FILE *logfile = qemu_log_lock(); qemu_log("[cansocketcan]: %03X [%01d] %s %s", msg->can_id & QEMU_CAN_EFF_MASK, msg->can_dlc, @@ -89,7 +88,7 @@ static void can_host_socketcan_display_msg(struct qemu_can_frame *msg) } qemu_log("\n"); qemu_log_flush(); - qemu_log_unlock(); + qemu_log_unlock(logfile); } static void can_host_socketcan_read(void *opaque) diff --git a/target/cris/translate.c b/target/cris/translate.c index e752bd0609..cb57516a44 100644 --- a/target/cris/translate.c +++ b/target/cris/translate.c @@ -3273,11 +3273,11 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns) #if !DISAS_CRIS if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM) && qemu_log_in_addr_range(pc_start)) { - qemu_log_lock(); + FILE *logfile = qemu_log_lock(); qemu_log("--------------\n"); qemu_log("IN: %s\n", lookup_symbol(pc_start)); log_target_disas(cs, pc_start, dc->pc - pc_start); - qemu_log_unlock(); + qemu_log_unlock(logfile); } #endif #endif diff --git a/target/i386/translate.c b/target/i386/translate.c index 77e932d827..7c99ef1385 100644 --- a/target/i386/translate.c +++ b/target/i386/translate.c @@ -2502,14 +2502,15 @@ static void gen_unknown_opcode(CPUX86State *env, DisasContext *s) gen_illegal_opcode(s); if (qemu_loglevel_mask(LOG_UNIMP)) { + FILE *logfile = qemu_log_lock(); target_ulong pc = s->pc_start, end = s->pc; - qemu_log_lock(); + qemu_log("ILLOPC: " TARGET_FMT_lx ":", pc); for (; pc < end; ++pc) { qemu_log(" %02x", cpu_ldub_code(env, pc)); } qemu_log("\n"); - qemu_log_unlock(); + qemu_log_unlock(logfile); } } diff --git a/target/lm32/translate.c b/target/lm32/translate.c index 778cae1e81..73db9654d6 100644 --- a/target/lm32/translate.c +++ b/target/lm32/translate.c @@ -1137,10 +1137,10 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns) #ifdef DEBUG_DISAS if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM) && qemu_log_in_addr_range(pc_start)) { - qemu_log_lock(); + FILE *logfile = qemu_log_lock(); qemu_log("\n"); log_target_disas(cs, pc_start, dc->pc - pc_start); - qemu_log_unlock(); + qemu_log_unlock(logfile); } #endif } diff --git a/target/microblaze/translate.c b/target/microblaze/translate.c index 761f535357..cc1ad15656 100644 --- a/target/microblaze/translate.c +++ b/target/microblaze/translate.c @@ -1766,10 +1766,10 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns) #if !SIM_COMPAT if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM) && qemu_log_in_addr_range(pc_start)) { - qemu_log_lock(); + FILE *logfile = qemu_log_lock(); qemu_log("--------------\n"); log_target_disas(cs, pc_start, dc->pc - pc_start); - qemu_log_unlock(); + qemu_log_unlock(logfile); } #endif #endif diff --git a/target/nios2/translate.c b/target/nios2/translate.c index e17656e66f..82107bf270 100644 --- a/target/nios2/translate.c +++ b/target/nios2/translate.c @@ -892,11 +892,11 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns) #ifdef DEBUG_DISAS if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM) && qemu_log_in_addr_range(tb->pc)) { - qemu_log_lock(); + FILE *logfile = qemu_log_lock(); qemu_log("IN: %s\n", lookup_symbol(tb->pc)); log_target_disas(cs, tb->pc, dc->pc - tb->pc); qemu_log("\n"); - qemu_log_unlock(); + qemu_log_unlock(logfile); } #endif } diff --git a/target/tilegx/translate.c b/target/tilegx/translate.c index 68dd4aa2d8..fd406f4f71 100644 --- a/target/tilegx/translate.c +++ b/target/tilegx/translate.c @@ -2377,6 +2377,7 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns) uint64_t pc_start = tb->pc; uint64_t page_start = pc_start & TARGET_PAGE_MASK; int num_insns = 0; + FILE *logfile = NULL; dc->pc = pc_start; dc->mmuidx = 0; @@ -2388,7 +2389,7 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns) dc->zero = NULL; if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) { - qemu_log_lock(); + logfile = qemu_log_lock(); qemu_log("IN: %s\n", lookup_symbol(pc_start)); } gen_tb_start(tb); @@ -2418,9 +2419,9 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns) tb->size = dc->pc - pc_start; tb->icount = num_insns; - if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) { + if (logfile) { qemu_log("\n"); - qemu_log_unlock(); + qemu_log_unlock(logfile); } } diff --git a/target/unicore32/translate.c b/target/unicore32/translate.c index 0e01f35856..0f6891b8aa 100644 --- a/target/unicore32/translate.c +++ b/target/unicore32/translate.c @@ -1994,12 +1994,12 @@ done_generating: #ifdef DEBUG_DISAS if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM) && qemu_log_in_addr_range(pc_start)) { - qemu_log_lock(); + FILE *logfile = qemu_log_lock(); qemu_log("----------------\n"); qemu_log("IN: %s\n", lookup_symbol(pc_start)); log_target_disas(cs, pc_start, dc->pc - pc_start); qemu_log("\n"); - qemu_log_unlock(); + qemu_log_unlock(logfile); } #endif tb->size = dc->pc - pc_start; diff --git a/tcg/tcg.c b/tcg/tcg.c index 220eaac7c7..4f616ba38b 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -1085,7 +1085,7 @@ void tcg_prologue_init(TCGContext *s) #ifdef DEBUG_DISAS if (qemu_loglevel_mask(CPU_LOG_TB_OUT_ASM)) { - qemu_log_lock(); + FILE *logfile = qemu_log_lock(); qemu_log("PROLOGUE: [size=%zu]\n", prologue_size); if (s->data_gen_ptr) { size_t code_size = s->data_gen_ptr - buf0; @@ -1110,7 +1110,7 @@ void tcg_prologue_init(TCGContext *s) } qemu_log("\n"); qemu_log_flush(); - qemu_log_unlock(); + qemu_log_unlock(logfile); } #endif @@ -4049,11 +4049,11 @@ int tcg_gen_code(TCGContext *s, TranslationBlock *tb) #ifdef DEBUG_DISAS if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP) && qemu_log_in_addr_range(tb->pc))) { - qemu_log_lock(); + FILE *logfile = qemu_log_lock(); qemu_log("OP:\n"); tcg_dump_ops(s, false); qemu_log("\n"); - qemu_log_unlock(); + qemu_log_unlock(logfile); } #endif @@ -4094,11 +4094,11 @@ int tcg_gen_code(TCGContext *s, TranslationBlock *tb) #ifdef DEBUG_DISAS if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP_IND) && qemu_log_in_addr_range(tb->pc))) { - qemu_log_lock(); + FILE *logfile = qemu_log_lock(); qemu_log("OP before indirect lowering:\n"); tcg_dump_ops(s, false); qemu_log("\n"); - qemu_log_unlock(); + qemu_log_unlock(logfile); } #endif /* Replace indirect temps with direct temps. */ @@ -4115,11 +4115,11 @@ int tcg_gen_code(TCGContext *s, TranslationBlock *tb) #ifdef DEBUG_DISAS if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP_OPT) && qemu_log_in_addr_range(tb->pc))) { - qemu_log_lock(); + FILE *logfile = qemu_log_lock(); qemu_log("OP after optimization and liveness analysis:\n"); tcg_dump_ops(s, true); qemu_log("\n"); - qemu_log_unlock(); + qemu_log_unlock(logfile); } #endif