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[50.253.99.174]) by smtp.gmail.com with ESMTPSA id w19sm613022iov.12.2022.01.07.23.38.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 07 Jan 2022 23:38:14 -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=siiQROmFkgoyoci8mg+ev58BNz0SLHU/+j4/Xsy7h34=; b=o6Wthbmf9+gsuhvkJSA4DXYAhvjS7ynqhw6hv6P1PHN1GxKlqx21CB2GkxqAxGexMm uOlkjS2rHNI4FdMMmepBmeODOPDGyC0+r5kqlo7YzLqW/rlAJHb548Qa3tailb/AOWx8 9Io0HRUHlfQHvENLvjxklBXyDG4YWhFVUhaChU2CDOLWF6GtwQQQ7seC8OzqF3CnLWZD 8odHNispijxADcQTtFONsXph+FU5GD+DIBn//yjKM82uBxgN8R5CZJaM6w7RS3Nny8aS QPPjt7Tf0BsFBhcexJAtJnUNFipsIdX3SJRK0cnXMSSaDzJWZjjcDaBYdhAk/8G3XDEf O1Rw== 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=siiQROmFkgoyoci8mg+ev58BNz0SLHU/+j4/Xsy7h34=; b=z3apfUWI0RWodLHHkiD3bTtUCuTVC3kSdZtbNQXxNkhqraOayBUi0MfdiDsHFK3rDn rdZrUVIWUF+9+y0lgTVriPqah6je+OWBXAGUcu5bMHNddJPI3TWpjmy7e48+TxhY00nf bwiw99UoUL3ADuG8NnA4xGrJsheilMBNrPuRfmEHr9gwOZto6SUfDWO9JRqZ4pp6/kB9 /69GlJnanNCuGoa2LznwlPxdx2sOWfKaP+hmoYugwouCFsAv3PhFSG7mxaMelWTS77GO paS2njS2A/cg3wyudg8BGhzDBLdW7RCMO9KErkItZm9ptMWxrOGn17Z5end9DH7EwR36 xcrw== X-Gm-Message-State: AOAM5309TMivAJ30keORe74FiFRbdOKDwyZCagropL4nZmTwsxF+qoKX 7+uXTSu1ITwEbXbtYIM0HXTROZ1DETmYCKSq X-Google-Smtp-Source: ABdhPJx93hmzAsdzhG/Tc6Kq1VwakhGEGSKTT/qw8EBaC1MN/TdmucVhZmzbUS3npWOGb4ws6q50Ig== X-Received: by 2002:a05:6638:2688:: with SMTP id o8mr30059038jat.118.1641627495227; Fri, 07 Jan 2022 23:38:15 -0800 (PST) From: Warner Losh To: qemu-devel@nongnu.org Subject: [PULL 33/37] bsd-user/arm/signal.c: arm get_mcontext Date: Sat, 8 Jan 2022 00:37:33 -0700 Message-Id: <20220108073737.5959-34-imp@bsdimp.com> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20220108073737.5959-1-imp@bsdimp.com> References: <20220108073737.5959-1-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::d2c (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::d2c; envelope-from=imp@bsdimp.com; helo=mail-io1-xd2c.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, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_NONE=0.001 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: Stacey Son , qemu-trivial@nongnu.org, Kyle Evans , Michael Tokarev , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Laurent Vivier , Richard Henderson , 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: 1641630824560100001 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 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) diff --git a/bsd-user/arm/signal.c b/bsd-user/arm/signal.c index 3c0db30a85e..93c9bfc0d37 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; +} --=20 2.33.1