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[50.253.99.174]) by smtp.gmail.com with ESMTPSA id v4sm3508528ilq.57.2021.11.04.20.20.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 04 Nov 2021 20:20:19 -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=NxuDAF8jAoUwFWtiVKiLjCxUV4oGpS2eNcZyh+rNyYo=; b=wQu+O1l8NZDXq6FwVCEAeRqtrmLa6RAMWccuNggDsJav6tclXCXSykjgK4atQrpy8U KVRrkrONGxxuMEERJZKJCbQ8e9pNTfT6iGyAmJcyGjvUcQtTyF1iQyxwgVqWoIo+vc8L GbxCA/N13UZXZqc2ShdL6biJ9jGT5geUiP/KNNtWCMuHYt2K0GDZay7Qi8PXoTxOqChN nHAN75yWVkj7gXswngOp0GsCAY1cz+PBoV9QTXMojZ43w5gH767zKv8vldB52Fq4+cOC 02Ay0gslbG6cN2wtltqDKilq0UpSB9ls5lx193/2y2xK7f32bK7KeFsEMXgZjhXEu5bj Cizw== 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=NxuDAF8jAoUwFWtiVKiLjCxUV4oGpS2eNcZyh+rNyYo=; b=aa9cgVei9oFCvFFgh5lpiLXPpiXvizDnFUdKhx5WKpS+CDoFIvgryzuGLsY15lMKcc n+ZVAZB6fkrDCx8BCDJUsRLO2eTzaI2IvzsMi6FeQ8PiRZ8/liaudiEtQWnO5aejtz3G ymoBEHpzaog89OlMbRRJfaTEonX9hmZhnf+mKa0Qnqrd50v4BPbxZeb2w2kEfS2Gdsb5 RK9p4PYZx/MRKhqcCY3KqeecA/saeCyEJRb1SeOiB0CdnVQ0iwsMq8grT5nV3D3xoifb vqEsRg5uK9xGuseJWHtji2dZ38SByoksQj5gD81l/qEgxzQFaV+Tll07lNidOmBW5Vqo JS+w== X-Gm-Message-State: AOAM531DGyB+0ckVwQEUSx5sAY6PzKheGWOze2K2tHV1d/Xt0UxOWYt6 SGQPtditWBTAZOCTyjTrCIr9+pg1YItgbg== X-Google-Smtp-Source: ABdhPJx5zmOTncRFsE40th0YO68ACIy6K1m/u4WZRa6s4KWymxLN1QGaAcsLz4b/+JMqTqKH74C+GQ== X-Received: by 2002:a05:6602:2ccf:: with SMTP id j15mr25770582iow.77.1636082419897; Thu, 04 Nov 2021 20:20:19 -0700 (PDT) From: Warner Losh To: qemu-devel@nongnu.org Subject: [PATCH v4 32/36] bsd-user/arm/target_arch_signal.c: arm get_mcontext Date: Thu, 4 Nov 2021 21:19:13 -0600 Message-Id: <20211105031917.87837-33-imp@bsdimp.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20211105031917.87837-1-imp@bsdimp.com> References: <20211105031917.87837-1-imp@bsdimp.com> MIME-Version: 1.0 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: none client-ip=2607:f8b0:4864:20::d2a; envelope-from=imp@bsdimp.com; helo=mail-io1-xd2a.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=unavailable 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: Stacey Son , qemu-trivial@nongnu.org, Michael Tokarev , Richard Henderson , Philippe Mathieu-Daude , Laurent Vivier , Kyle Evans , 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: 1636084197170100001 Content-Type: text/plain; charset="utf-8" Get the machine context from the CPU state. Signed-off-by: Stacey Son Signed-off-by: Kyle Evans Signed-off-by: Warner Losh Reviewed-by: Richard Henderson --- bsd-user/arm/signal.c | 51 +++++++++++++++++++++++++++++++ bsd-user/arm/target_arch_signal.h | 1 + 2 files changed, 52 insertions(+) diff --git a/bsd-user/arm/signal.c b/bsd-user/arm/signal.c index 3c0db30a85..93c9bfc0d3 100644 --- a/bsd-user/arm/signal.c +++ b/bsd-user/arm/signal.c @@ -58,3 +58,54 @@ abi_long set_sigtramp_args(CPUARMState *env, int sig, =20 return 0; } + +/* + * Compare to arm/arm/machdep.c get_mcontext() + * Assumes that the memory is locked if mcp points to user memory. + */ +abi_long get_mcontext(CPUARMState *env, target_mcontext_t *mcp, int flags) +{ + int err =3D 0; + uint32_t *gr =3D mcp->__gregs; + + if (mcp->mc_vfp_size !=3D 0 && mcp->mc_vfp_size !=3D sizeof(target_mco= ntext_vfp_t)) { + return -TARGET_EINVAL; + } + + gr[TARGET_REG_CPSR] =3D tswap32(cpsr_read(env)); + if (flags & TARGET_MC_GET_CLEAR_RET) { + gr[TARGET_REG_R0] =3D 0; + gr[TARGET_REG_CPSR] &=3D ~CPSR_C; + } else { + gr[TARGET_REG_R0] =3D tswap32(env->regs[0]); + } + + gr[TARGET_REG_R1] =3D tswap32(env->regs[1]); + gr[TARGET_REG_R2] =3D tswap32(env->regs[2]); + gr[TARGET_REG_R3] =3D tswap32(env->regs[3]); + gr[TARGET_REG_R4] =3D tswap32(env->regs[4]); + gr[TARGET_REG_R5] =3D tswap32(env->regs[5]); + gr[TARGET_REG_R6] =3D tswap32(env->regs[6]); + gr[TARGET_REG_R7] =3D tswap32(env->regs[7]); + gr[TARGET_REG_R8] =3D tswap32(env->regs[8]); + gr[TARGET_REG_R9] =3D tswap32(env->regs[9]); + gr[TARGET_REG_R10] =3D tswap32(env->regs[10]); + gr[TARGET_REG_R11] =3D tswap32(env->regs[11]); + gr[TARGET_REG_R12] =3D tswap32(env->regs[12]); + + gr[TARGET_REG_SP] =3D tswap32(env->regs[13]); + gr[TARGET_REG_LR] =3D tswap32(env->regs[14]); + gr[TARGET_REG_PC] =3D tswap32(env->regs[15]); + + if (mcp->mc_vfp_size !=3D 0 && mcp->mc_vfp_ptr !=3D 0) { + /* see get_vfpcontext in sys/arm/arm/exec_machdep.c */ + target_mcontext_vfp_t *vfp; + vfp =3D lock_user(VERIFY_WRITE, mcp->mc_vfp_ptr, sizeof(*vfp), 0); + for (int i =3D 0; i < 32; i++) { + vfp->mcv_reg[i] =3D tswap64(*aa32_vfp_dreg(env, i)); + } + vfp->mcv_fpscr =3D tswap32(vfp_get_fpscr(env)); + unlock_user(vfp, mcp->mc_vfp_ptr, sizeof(*vfp)); + } + return err; +} diff --git a/bsd-user/arm/target_arch_signal.h b/bsd-user/arm/target_arch_s= ignal.h index 8286aa5d6e..429843c70f 100644 --- a/bsd-user/arm/target_arch_signal.h +++ b/bsd-user/arm/target_arch_signal.h @@ -89,5 +89,6 @@ abi_long set_sigtramp_args(CPUARMState *regs, int sig, struct target_sigframe *frame, abi_ulong frame_addr, struct target_sigaction *ka); +abi_long get_mcontext(CPUARMState *regs, target_mcontext_t *mcp, int flags= ); =20 #endif /* !_TARGET_ARCH_SIGNAL_H_ */ --=20 2.33.0