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[50.253.99.174]) by smtp.gmail.com with ESMTPSA id j2sm1972989ilu.82.2022.01.31.11.56.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 31 Jan 2022 11:56:34 -0800 (PST) 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=k9zDtgXS+L05+ekpD7VMpQo1Lh9R8HC1kSXvuE27qsY=; b=5At6AW7jsIGvsHhzFugiT8MsmO/itxFMr8HZKsadLx2pt0ceMHGSRAUgPh/FfXxFGA eTorMgkl4bgpx+O5BFLkFplGVbfRNXmIDYEECjo+CQmn5+SgjTCFU1wawFLPWzc5Q846 T0sx5lB3wtjY5lDnL6cQh0QEeudIu8hpE+vPjr7q1fmVFYPknI7IVM4/yadOT1pnr8Bm FYel4EISo3kOc7PqAxNvyYFkXoFgVmg2x9Lp0vSn9ZJj/3phhar5wCoRNrPSuh0ClfQZ xbdjc7iuyNHRd/jw16oTfT47UwY6r4n/hUMubxUKvaS8vwgrXl51sO1w7p8Gz2ut6iFv QyiQ== 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=k9zDtgXS+L05+ekpD7VMpQo1Lh9R8HC1kSXvuE27qsY=; b=z6ZjYIoHcUeB7W5YauCt7SlmMkd3/njJH3ySqFEGYoy9IVKK69HafOYigAl7wu1EQ+ DMGTOMQ8SGdwSo8ItWVFrj17sXXeUJwvE9XhhhlKwPjvYWpBHjCAePhnKCAjgFBT5xP+ 7l+5xxF7iJXGTGJHoJ8n7eua2cQ7OqfK9p+7smKFTu3YwDemO4vhgZvECFOaeAW/SETZ Xw+8nB7WxIulGQkv8AjVud907BHZcGk70rJ098kcyW9U8Rn3gxJmLZwTezR8gkVxbVij 8st/AsxKYR46j6hjNR5ycd/PNAPt5uancaFsiksV+N2uGRr4FIBVWLe9EbyCaCMXcAyU gkUw== X-Gm-Message-State: AOAM531gBxTZPuvy5sMtbQd6qNbMdVTM0o2qO/7uNTtd42HhvRDz41YA VLkMwb2Czln1e6gQMrLAPFq5HcwtjIqJEQ== X-Google-Smtp-Source: ABdhPJyF4ITUXFo7axp7m/nsLzt4J5K8DLS2AxhwGkMRHoWzOnGPTc37sOHrTP38PWRuSbc494J7Xg== X-Received: by 2002:a5e:8406:: with SMTP id h6mr12194987ioj.144.1643658994519; Mon, 31 Jan 2022 11:56:34 -0800 (PST) From: Warner Losh To: qemu-devel@nongnu.org Subject: [PULL 04/40] bsd-user/arm/signal.c: get_mcontext should zero vfp data Date: Mon, 31 Jan 2022 12:56:00 -0700 Message-Id: <20220131195636.31991-5-imp@bsdimp.com> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20220131195636.31991-1-imp@bsdimp.com> References: <20220131195636.31991-1-imp@bsdimp.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::d32 (failed) 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: none client-ip=2607:f8b0:4864:20::d32; envelope-from=imp@bsdimp.com; helo=mail-io1-xd32.google.com X-Spam_score_int: -10 X-Spam_score: -1.1 X-Spam_bar: - X-Spam_report: (-1.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, PDS_HP_HELO_NORDNS=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_NONE=0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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: , Cc: Peter Maydell , Kyle Evans , Richard Henderson , def@FreeBSD.org, jrtc27@FreeBSD.org, Warner Losh Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1643661073047100001 Content-Type: text/plain; charset="utf-8" FreeBSD's get_mcontext doesn't return any vfp data. Instead, it zeros out the vfp feilds (and all the spare fields). Impelement this behavior. We're still missing the sysarch(ARM_GET_VFPCONTEXT) syscall, though. Signed-off-by: Warner Losh Reviewed-by: Richard Henderson --- bsd-user/arm/signal.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/bsd-user/arm/signal.c b/bsd-user/arm/signal.c index 9026343b478..2b1dd745d13 100644 --- a/bsd-user/arm/signal.c +++ b/bsd-user/arm/signal.c @@ -109,6 +109,15 @@ abi_long get_mcontext(CPUARMState *env, target_mcontex= t_t *mcp, int flags) gr[TARGET_REG_LR] =3D tswap32(env->regs[14]); gr[TARGET_REG_PC] =3D tswap32(env->regs[15]); =20 + /* + * FreeBSD's get_mcontext doesn't save VFP info, but sets the pointer = and + * size to zero. Applications that need the VFP state use + * sysarch(ARM_GET_VFPSTATE) and are expected to adjust mcontext after= that. + */ + mcp->mc_vfp_size =3D 0; + mcp->mc_vfp_ptr =3D 0; + memset(&mcp->mc_spare, 0, sizeof(mcp->mc_spare)); + return 0; } =20 --=20 2.33.1