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[50.253.99.174]) by smtp.gmail.com with ESMTPSA id q7sm1133951ilv.48.2021.10.19.09.45.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 Oct 2021 09:45:13 -0700 (PDT) From: Warner Losh To: qemu-devel@nongnu.org Cc: Warner Losh , Laurent Vivier , qemu-trivial@nongnu.org, Kyle Evans , Michael Tokarev , Stacey Son , =?UTF-8?q?Mika=C3=ABl=20Urankar?= , Klye Evans Subject: [PATCH 07/24] bsd-user/arm/target_arch_cpu.h: Implment trivial EXCP exceptions Date: Tue, 19 Oct 2021 10:44:30 -0600 Message-Id: <20211019164447.16359-8-imp@bsdimp.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20211019164447.16359-1-imp@bsdimp.com> References: <20211019164447.16359-1-imp@bsdimp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: none client-ip=2607:f8b0:4864:20::131; envelope-from=imp@bsdimp.com; helo=mail-il1-x131.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-trivial@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Oct 2021 16:45:25 -0000 Implent EXCP_UDEF, EXCP_DEBUG, EXCP_INTERRUPT, EXCP_ATOMIC and EXCP_YIELD. The first two generate a signal to the emulated binary. EXCP_ATOMIC handles atomic operations. The remainder are fancy nops. Signed-off-by: Stacey Son Signed-off-by: Mikaël Urankar Signed-off-by: Klye Evans Signed-off-by: Warner Losh --- bsd-user/arm/target_arch_cpu.h | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/bsd-user/arm/target_arch_cpu.h b/bsd-user/arm/target_arch_cpu.h index 94c9109c3f..f22384676a 100644 --- a/bsd-user/arm/target_arch_cpu.h +++ b/bsd-user/arm/target_arch_cpu.h @@ -47,6 +47,34 @@ static inline void target_cpu_loop(CPUARMState *env) cpu_exec_end(cs); process_queued_cpu_work(cs); switch (trapnr) { + case EXCP_UDEF: + { + /* See arm/arm/undefined.c undefinedinstruction(); */ + info.si_addr = env->regs[15]; + info.si_signo = TARGET_SIGILL; + info.si_errno = 0; + info.si_code = TARGET_ILL_ILLADR; + queue_signal(env, info.si_signo, &info); + } + break; + case EXCP_INTERRUPT: + /* just indicate that signals should be handled asap */ + break; + case EXCP_DEBUG: + { + + info.si_signo = TARGET_SIGTRAP; + info.si_errno = 0; + info.si_code = TARGET_TRAP_BRKPT; + queue_signal(env, info.si_signo, &info); + } + break; + case EXCP_ATOMIC: + cpu_exec_step_atomic(cs); + break; + case EXCP_YIELD: + /* nothing to do here for user-mode, just resume guest code */ + break; default: fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", trapnr); -- 2.32.0 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 130EAC433EF for ; Tue, 19 Oct 2021 17:28:06 +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 AC19A61354 for ; Tue, 19 Oct 2021 17:28:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org AC19A61354 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bsdimp.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:41100 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mcsuB-0007kD-Vz for qemu-devel@archiver.kernel.org; Tue, 19 Oct 2021 13:28:04 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45762) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mcsEt-00008e-Pl for qemu-devel@nongnu.org; Tue, 19 Oct 2021 12:45:23 -0400 Received: from mail-il1-x132.google.com ([2607:f8b0:4864:20::132]:34536) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mcsEl-0000Io-DI for qemu-devel@nongnu.org; Tue, 19 Oct 2021 12:45:23 -0400 Received: by mail-il1-x132.google.com with SMTP id g2so19089248ild.1 for ; Tue, 19 Oct 2021 09:45:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bsdimp-com.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=qhGZ41nOlvsySd2XyLCyulTBUhHoEjSzSjYsF8X0b4I=; b=BXXaiuZAdQ7m1ifomxu1G7S3+MWfyEKqI4Ltq54yjgCRw0gR92KrX8RFIzw5Q4tHiC a055TTvMy25DSVUHrfM7sndHN1pEOSIetNfMn6UfxL0IO8si9DRqjLGccxr/8J+YNp7R qM9hOsI/KLK4zT+Q+QdTc5YAHl7sdh8SkvrFNSpLaC3bP4QAQ77AqXkCuid0++A/R3lL nGV0uCpDxJmVWSLODZYykiOTFolQkEaQddOGZWcKenBSePj4bSm3DIuV2+u905Mz8rr5 2D3fz2ZUsJQd0Pc9dsGx5SpLEFNhMeT0gpQR887/DPWOxzD0V5PJHx+P35Q8fm1Ks6sD ZAPQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=qhGZ41nOlvsySd2XyLCyulTBUhHoEjSzSjYsF8X0b4I=; b=hwBpY5y48gLnfQ7R+Sf2V9Gfkh2ixhdzk8t3FhU3DHDTEppPtW4ogezxVeQIx3kQzn aMER6c1+z0bTlKvxau+TYWd1ujTRqYTPt9mhGslZvHqIN/DDrApX4EApPJKlIyXHoWv5 ubPrByeKQ68DrKODIY+kN3vQUCgow0tZC5tPkQiCTWIAtXzuHas/27tOy/cEsDwBrCbv FsPCQe2Yka+ur9azeLZHgAea0+0mE1RvLWb8+83TckHPUweMpz9L/M3TLt0nI//eevxT nopKGc2AGGmlIyQxp7zs2QG61kzAibo3ZhP8tINdVRiLrl3DFe78Vn9pdsGTTODA3/I2 +E/g== X-Gm-Message-State: AOAM533Ozl8AOApDw31xrBmnwjmk03pGc0c7tzKUIMQO1PYT0A/2Y51R 2Vym6ikb9Yo2VrQgLxhYOHdEFO/38PQ= X-Google-Smtp-Source: ABdhPJz4UWipIdRt6PxNOTDwOfwrk7eJnwwK6a86IUFB6i6ic7JCZev5vDJ5PI8nXS8Gii4cXd92uw== X-Received: by 2002:a92:da91:: with SMTP id u17mr3680522iln.242.1634661913850; Tue, 19 Oct 2021 09:45:13 -0700 (PDT) Received: from dune.bsdimp.com (50-253-99-174-static.hfc.comcastbusiness.net. [50.253.99.174]) by smtp.gmail.com with ESMTPSA id q7sm1133951ilv.48.2021.10.19.09.45.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 Oct 2021 09:45:13 -0700 (PDT) From: Warner Losh To: qemu-devel@nongnu.org Subject: [PATCH 07/24] bsd-user/arm/target_arch_cpu.h: Implment trivial EXCP exceptions Date: Tue, 19 Oct 2021 10:44:30 -0600 Message-Id: <20211019164447.16359-8-imp@bsdimp.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20211019164447.16359-1-imp@bsdimp.com> References: <20211019164447.16359-1-imp@bsdimp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: none client-ip=2607:f8b0:4864:20::132; envelope-from=imp@bsdimp.com; helo=mail-il1-x132.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action 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: Stacey Son , qemu-trivial@nongnu.org, Klye Evans , Michael Tokarev , Laurent Vivier , =?UTF-8?q?Mika=C3=ABl=20Urankar?= , Warner Losh Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Implent EXCP_UDEF, EXCP_DEBUG, EXCP_INTERRUPT, EXCP_ATOMIC and EXCP_YIELD. The first two generate a signal to the emulated binary. EXCP_ATOMIC handles atomic operations. The remainder are fancy nops. Signed-off-by: Stacey Son Signed-off-by: Mikaël Urankar Signed-off-by: Klye Evans Signed-off-by: Warner Losh --- bsd-user/arm/target_arch_cpu.h | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/bsd-user/arm/target_arch_cpu.h b/bsd-user/arm/target_arch_cpu.h index 94c9109c3f..f22384676a 100644 --- a/bsd-user/arm/target_arch_cpu.h +++ b/bsd-user/arm/target_arch_cpu.h @@ -47,6 +47,34 @@ static inline void target_cpu_loop(CPUARMState *env) cpu_exec_end(cs); process_queued_cpu_work(cs); switch (trapnr) { + case EXCP_UDEF: + { + /* See arm/arm/undefined.c undefinedinstruction(); */ + info.si_addr = env->regs[15]; + info.si_signo = TARGET_SIGILL; + info.si_errno = 0; + info.si_code = TARGET_ILL_ILLADR; + queue_signal(env, info.si_signo, &info); + } + break; + case EXCP_INTERRUPT: + /* just indicate that signals should be handled asap */ + break; + case EXCP_DEBUG: + { + + info.si_signo = TARGET_SIGTRAP; + info.si_errno = 0; + info.si_code = TARGET_TRAP_BRKPT; + queue_signal(env, info.si_signo, &info); + } + break; + case EXCP_ATOMIC: + cpu_exec_step_atomic(cs); + break; + case EXCP_YIELD: + /* nothing to do here for user-mode, just resume guest code */ + break; default: fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", trapnr); -- 2.32.0